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MHC-RG77
MANUAL DE SERVIÇO
Brazilian Model
Ver 1.5 05 2004
Especificações Técnicas
Amplificador
MHC-RG77
Potência de Saída RMS
215 + 215 watts
(6 ohms a 1 kHz,
10% THD)
Potência de Saída PMPO 4.700W
MHC-RG66T
Potência de Saída RMS 145 + 145 watts
(6 ohms a 1 kHz,
10% THD)
Potência de Saída PMPO 3.200W
MHC-RG90
Potência de Saída RMS 270 + 270 watts
(6 ohms a 1 kHz,
10% THD)
Potência de Saída PMPO 6.000W
Entradas
GAME (VIDEO) (tomada RCA):
1 Vp-p, 75 ohms
GAME (AUDIO) (tomada RCA):
Sensibilidade 250 mV,
impedância 47 kilohms
MD/VIDEO (AUDIO) IN (tomada RCA):
Sensibilidade 450/250 mV,
impedância 47 kilohms
MIC:
Sensibilidade 1 mV,
impedância 10 kilohms
Saídas
VIDEO OUT (tomadas RCA):
Nível máx. de saída:1 Vp-p,
não balanceado,
sincronismo negativo,
impedância de carga
de 75 ohms
PHONES (minitomada estéreo):
Aceita fone de ouvido de
8 ohms ou mais
FRONT SPEAKER:
Aceita impedâncias de 6
a 16 ohms
SURROUND SPEAKER: Aceita impedância de
(somente MHC-RG77)
24 ohms ou mais
Esta página foi retirada do manual de instruções.
Modelo que usa mecanismo similar
MHC-RG66T
Seção
CD
Mecanismo do CD
CDM58E-30BD60C
Base da Unidade
BU-30BD60C
Unidade Óptica
A-MAX.3
Seção
Modelo que usa mecanismo similar
MHC-RG66T
Mecanismo do Toca-Fitas
TCM-230PWR41CS
Toca-Fitas
Reprodutor de CDs
Sistema
Sistema de áudio digital
de disco compacto
Laser
Laser semicondutor
(λ=795nm)
Saída Laser
Máx. 44,6 µW*
* Esta saída é o valor
medido a uma distância
de 200mm da superfície
da lente objetiva no
bloco de reprodução
óptica com 7mm de
abertura.
Resposta de Freqüência 2 Hz – 20 kHz (±0,5 dB)
Comprimento de Onda
795 nm
SAÍDA ÓPTICA DIGITAL DE CD -
CD DIGITAL OUT
(Tomada de conector quadrado no painel traseiro)
Comprimento de Onda
660 nm
Nível de Saída
–18 dBm
Reprodutor de Fitas
Sistema de Gravação
Resposta de Freqüência
Wow e flutter
4 pistas, 2 canais estéreo
50 – 13.000 Hz (±3 dB),
utilizando fita cassete
Sony tipo I (normal)
Menor que 0,3% W.RMS
(DIN)
Rádio
FM estéreo, sintonizador super-heteródino de FM/AM
Sintonizador FM
Faixa de sintonização
Antena
Terminais da antena
Freqüência intermediária
87,5 – 108,0 MHz
Antena monofilar de FM
75 ohms, não balanceado
10,7 MHz
Sintonizador AM
Faixa de Sintonização
530 – 1.710 kHz (com
intervalo de freqüência
ajustado em 10 kHz)
531 – 1.710 kHz (com
intervalo de freqüência
ajustado em 9 kHz)
Antena
Antena Loop de AM
Terminais da antena
Terminal da antena externa
Freqüência intermediária 450 kHz
continuação na pág. seguinte
SISTEMA COMPACTO DE SOM
MHC-RG77
SEÇÃO 7
DIAGRAMAS
7-1.
DIAGRAMA EM BLOCO - Seção CD SERVO -
FILTER
DETECTOR
9
B
10
3
RFAC
VCA
EQ
RFAC
15
51
49
FE
FOCUS
ERROR AMP
D
FEI
RFDCO
RFDCI
F
F I-V AMP
E
TE
TRACKING
ERROR AMP
E I-V AMP
48
16
RFAC
ASYMMETRY
CORRECTION
FILI
PCO
FILO
EQ
IN
C
RF DC
AMP
11
4
EFM
DEMODULATOR
DIGITAL
PLL
ASYI
D/A
INTERFACE
ASYO
PWM1
17
PCMD
62
BCK
63
LRCK
61
C2PO
19
ERROR
CORRECTOR
28
SERIAL
IN
INTERFACE
SUBCODE
PROCESSOR
DIGITAL
CLV
18
SERVO AUTO
SEQUENCER
SERVO
INTERFACE
PD
LD
AUTOMATIC
POWER
CONTROL
Q101
1
LD
PD
APC LD
AMP
70
77
71
76
BUFFER
AIN2
LOUT2
CD
L-CH
72
75
R-CH
3
5 7 6
8
20
1 2
9 21 27
DOUT
EMPH
WFCK
GFS
SCLK
COUT
SSTP
SQSO
SQCK
SCOR
SENS
XLAT
XLON
14
DATA
CLOK
E-F BALANCE
(1 TRACK JUMP)
XRST
19
R-CH
CLOCK
GENERATOR
DIGITAL
OUT
64 15 18
60
TIMING
LOGIC
67
MUTING CONTROL
SWITCH
Q206, 207
66
12
OPTICAL
TRANSCEIVER
IC201
2
X101
16.9344MHz
CD DIGITAL OUT
OPTICAL
PWM2
M101
(SPINDLE)
M
15
16
CH4OUTR
MOTOR
DRIVE
25
LASER DIODE
ON SWITCH
Q202 – 205
40 LD-ON
PWM1
PWM2
PWM3
18
CH3FIN
CH3OUTF
CH3OUTR
MOTOR
DRIVE
CH3RIN
24
A/D
CONVERTER
23
28
(FOCUS) (TRACKING)
2-AXIS
DEVICE
(LIMIT)
ON : When the optical
pick-up is inner
position
29
12
11
CH2FIN
CH2OUTF
CH2OUTR
COIL
DRIVE
CH2RIN
5
6
30
31
32
33
14
13
CH1OUTF
CH1OUTR
CH1FIN
COIL
DRIVE
CH1RIN
SRDR
TFDR
TRDR
FFDR
FRDR
CD-MUTE 50
TBL-SENS 49
DISC TRAY
STATUS SENSOR
IC711
S711
OPTICAL PICK-UP
UP/DOWN DETECT
BU UP/DOWN-SW 48
28 BU-PWM1
26 BU-PWM2
24 BU-PWM3
OPEN-SW 46
S701
DISC TRAY OPEN/CLOSE
DETECT
OPEN
DIGITAL SERVO
PROCESSOR
IC101 (2/2)
CLOSE
CLOSE-SW 47
SYSTEM CONTROLLER
(CD MECHANISM CONTROL)
IC501 (1/4)
SFDR
FOCUS/TRACKING/SLED
SERVO DSP
17
FOCUS/TRACKING/SLED
PWM GENERATOR
M
TE
FE
RFDC
SE
40 41 39 43
M102
(SLED)
SQ-DATA-IN
SQ-CLK
35 CD-DATA
37 CD-CLK
36 XLT
CH4OUTF
CH4SIN
SCOR
SENS
34 19 32 33
FOCUS/TRACKING COIL DRIVE,
SPINDLE/SLED MOTOR DRIVE
IC102
MIRR/DFCT/
FOK
DETECTOR
FOK
24
MIRR
22
DFCT
23
LOAD-OUT 45
LOAD-IN 44
TURN MOTOR
DRIVER
IC701
7
9
FIN
RIN
MOTOR
DRIVE
OUT2
2
OUT1
4
M
M721
(TURN)
2
TO SERVO INTERFACE
3
MUTE 20
43 XRST
• R-ch is omitted due to same as L-ch.
• SIGNAL PATH
: CD PLAY (ANALOG)
: CD PLAY (DIGITAL OUT)
23
23
A
(Page 25)
TO MIRR/DFCT/
FOK DETECTOR
RV101
26
SW
LASER DIODE
AOUT2
LOUT1
MUTING
Q201
MDP
OPTICAL PICK-UP
BLOCK
(A-MAX. 3)
PWM
&
INTEGRATOR
AIN1
PWM3
29
CPU INTERFACE
TE BAL
DIGITAL
FILTER,
NOISE SHAPER
AOUT1
XTAI
8
AC
SUM
RF
SUMMING
AMP
16K
RAM
XTAO
7
A
55
INTERNAL BUS
6
56 53
54
CLTV
RF AMP,
FOCUS/TRACKING ERROR AMP
IC103
CD A+5V
DIGITAL SIGNAL PROCESSOR,
DIGITAL FILTER, D/A CONVERTER
IC101 (1/2)
MHC-RG77
7-2.
DIAGRAMA EM BLOCO - Seção TUNER/TAPE DECK
TUNER UNIT
ANTENNA
FM ANT
L-CH
ANT GND
R-CH
TUNER
L-CH
FM 75Ω
AM ANT
AM
DO
CLK
CE
MUTING
TUNED
STEREO
MUTE
EQOUT1
BIN1
R-CH
3
R-CH
REC/PB SWITCHING
IC302
1
14
27
TAPE
L-CH
26
R-CH
LOW-PASS
FILTER
IC303
(Page 25)
BUFFER
Q390, 398, 399
• R-ch is omitted due to same as L-ch.
• SIGNAL PATH
MUTING
Q306
: TUNER (FM/AM)
MUTING CONTROL
SWITCH
Q389
R-CH
: TAPE PLAY (DECK A)
REC MUTE
A/B
NOR/HIGH
R-CH
15 13 12
28
TAI1
+
L-CH
MUTE ON/OFF
34
PB-OUT1
AIN1
REC MUTE ON/OFF
A/B
NORMAL/HIGH SPEED
32
R-CH
C
DECK A/B SELECT SWITCH,
PB EQ AMP
IC301 (1/2)
L-CH
HP901
(PB)
R-CH
(Page 25)
DI
ST-DOUT
ST-DIN
ST-CLK
ST-CE
ST-MUTE
TUNED
STEREO
ANT GND
B
R-CH
: TAPE PLAY (DECK B)
: REC
4
2
REC EQ AMP, ALC
IC301 (2/2)
REC/PB
SWITCHING
Q304, 305
HRPE901
(REC/PB/ERASE)
BIAS
TRAP
R-CH
RV304
REC BIAS (L)
(DECK B)
REC-IN1
EQ
R-CH
ALC1
ALC
REC
L-CH
24
RV301
23
REC LEVEL (L)
(DECK B)
R-CH
11
TC +10V
CAPSTAN
MOTOR DRIVE
Q396, 397
M
55 CAPM-CNT1
B-HALF
A-SHUT
B-SHUT
A-TRIG
B-TRIG
RV1001
TAPE SPEED
(HIGH)
A-HALF
RV1002
TAPE SPEED
(NORMAL)
B-PLAY
54 CAPM-H/L
53
SYSTEM CONTROLLER
(CD MECHANISM CONTROL)
IC501 (2/4)
Q395
CAPSTAN MOTOR
CONTROL SWITCH
Q1001
58
AMS-IN
ALC
61 67 66
REC-MUTE
PB-A/B
EQ-H/N
68
A-PLAY
M901
(CAPSTAN)
25 23 27 22 21 3 2
ST-DIN
ST-DOUT
ST-CLK
ST-CE
ST-MUTE
TUNED
STEREO
65 BIAS
69
TC-RELAY
BIAS OSC
Q302, 303
TC-MUTE
REC BIAS
SWITCH
Q301, 307, 310
REC MUTE
A/B
NOR/HIGH
BIAS OSC
T301
DI
DO
CLK
CE
MUTING
TUNED
STEREO
REC BIAS (R)
(DECK B)
RECOUT1
ALC ON/OFF
RV354
21
56
57
70
91
89
90
51
52
D +3.3V
S1003
(DECK A HALF)
D +3.3V
S1001
(DECK A PLAY)
S1002
(DECK B PLAY)
S1006
(DECK B HALF)
D +3.3V
S1005
(DECK A REC)
S1009
(DECK B REC)
24
24
ROTATION
DETECT SENSOR
(DECK A)
IC1001
ROTATION
DETECT SENSOR
(DECK B)
IC1002
TRIGGER
PLUNGER DRIVE
(DECK A)
Q393, 394
TRIGGER
PLUNGER DRIVE
(DECK B)
Q391, 392
PM901
TRIGGER PLUNGER
(DECK A)
PM902
TRIGGER PLUNGER
(DECK B)
D
(Page 25)
MHC-RG77
7-3.
DIAGRAMA EM BLOCO - Seção PRINCIPAL
(Page 24)
D
REC L-CH
R-CH
R-CH
+
BB B1
RECB1
+
HEADPHONE MUTING
Q812, 862
17
MUTING CONTROL
SWITCH
Q861
CD L-CH
INPUT
SELECT
SWITCH
TOUT1
SOUND
CONTROL
CIRCUIT
TAPE L-CH
INEX1
15
VOLIN1
OUT1
VOLUME
CONTROL
R-CH
R-CH
R-CH
+
24
21 22
MUTING
Q103
STANDBY
SWITCH
Q503, 504, 581
R-CH
OVER LOAD
DETECT
Q501, 551
+
19
MUTING CONTROL
SWITCH
Q504, 505
DC DETECT
SWITCH
Q507, 508
J601
RY501
L
AUDIO
J401
R-CH
VIDEO OUT
+
VIDEO
D502
OVER LOAD
DETECT SWITCH
Q509
MIC AMP
IC722 (1/2)
MIC AMP
IC722 (2/2)
TEMPERATURE
DETECT SWITCH
Q505, 506
MIC
CONTROL
Q721
M891
(FAN)
FAN MOTOR
ON SWITCH
Q831
A +10V
FAN MOTOR
DRIVE
Q891, 892
M
TH701
SPEANA
83
88
PROTECTOR
25
25
SYSTEM CONTROLLER
(CD MECHANISM CONTROL)
IC501 (3/4)
87
78
79
HP-DETECT
80
HP MUTE
81 82
STK-MUTE
: TAPE PLAY
: REC
: CD PLAY
: MD/VIDEO (AUDIO) IN
: GAME INPUT (AUDIO)
: GAME INPUT (VIDEO)
: MIC INPUT
LINE-MUTE
• R-ch is omitted due to same as L-ch.
• SIGNAL PATH
: TUNER (FM/AM)
GEQ CLK
E
GEQ DATA
(Page 26)
FRONT SPEAKER
PROTECT
RELAY DRIVE
Q512
PROTECT SWITCH
Q502
RV722
MIC LEVEL
J721
MIC
OVER LOAD
DETECT SWITCH
Q510, 511
FRONT-RELAY
R
GAME
INPUT
+
–
+
–
–1
+
2
T501
–2
18
POWER AMP
IC501
CPU
INTERFACE
MIC
7
14
D511
TUNER L-CH
D507
IND1
6
INB1
4
INC1
5
INA1
3
DATA
CLOCK
C
R-CH
16
SWOUT
(Page 24)
B
R
SAOUT
(Page 24)
A
8
D841
+
(Page 23)
L
BB A1
INPUT SELECT SWITCH,
TONE CONTROL,
ELECTRICAL VOLUME
IC102
J750
MD/VIDEO
(AUDIO) IN
J631
PHONES
R-CH
FEED BACK
SWITCH
Q101
L
FRONT SPEAKER
IMPEDANCE
USE 6–16Ω
R
MHC-RG77
DIAGRAMA EM BLOCO - Seção DISPLAY/KEY CONTROL/POWER SUPPLY
LED-TAPE,
LED-TUNER,
LED-MD-VIDEO,
LED-CD,
LED-GAME,
LED-DISC1,
LED-DISC2,
LED-DISC3,
LED-REC
LED DRIVE
Q601 – 605,
Q791 – 793, 795
KEY0 – KEY2
64 – 66
100 – 86
1G – 15G
FL601
FLUORESCENT
INDICATOR TUBE
52 – 59, 74
P1 – P41
1 – 10, 12 – 22,
24 – 41, 43, 44
7-4.
6 REC IN
L+R 11
VOLUME
67 – 72
4 LINE IN
T910
MAIN POWER
TRANSFORMER
BPF0 – BPF5
X
E
F01 – F06
17 – 12
(Page 25)
S751, 752, 754 – 762,
S765 – 779, 782 – 792
FLUORESCENT
INDICATOR TUBE DRIVER,
KEY CONTROL
IC601
BAND-PASS
FILTER
IC602
SPEANA
D604 – 608,
D791 – 793, 795
+VH
–VH
73 ALL-BAND
– VG
ROTARY
ENCODER
S748
80 VOLUME-A
79 VOLUME-B
SYSTEM CONTROLLER
(CD MECHANISM CONTROL)
IC501 (4/4)
83 X1
82 X0
D920 – 922
LED DRIVE
Q794
+3.3V
REGULATOR
Q102
75 STBY-LED
M +9V
+9V
REGULATOR
IC961
RECT
D914 – 917
A +10V
TC +10V
+10V
REGULATOR
IC101
RECT
D906 – 909
+5V
REGULATOR
IC911
CD D+5V
CD A+5V
S749
VF1
VF2
B+ SWITCH
Q911, 912
CD-POWER 38
+4V
REGULATOR
IC951
D +4V
74 POWER-KEY
RECT
D918, 919, 923, 924
D501
D503
VOLTAGE
SELECTOR
S901
D502
D504
(E)
D +3.3V
73 DISPLAY-KEY
S750
DISPLAY
POWER ON/OFF
RELAY DRIVE
Q971
STBY-RELAY 84
REMOTE CONTROL
RECEIVER
IC603
RECT
D977
M +7V
CD +3.3V
D794
– 33V
REGULATOR
Q941
TO FLUORESCENT
INDICATOR TUBE
FL601
30 IIC-DATA
29 IIC-CLK
41 GC-RESET
I2C-DATA 60
I2C-CLOCK 61
RESET 77
X601
4MHz
RECT
D543
RY971
4 SIRCS
T972
SUB POWER
TRANSFORMER
15 X-IN
EVER +4V
X502
16MHz
13 X-OUT
RESET 12
10 XC-IN
X501
32.768kHz
AC-CUT 20
11 XC-OUT
26
26
RESET
SWITCH
Q601
RESET SIGNAL
GENERATOR
IC601
D505
+4V
REGULATOR
IC971
RECT
D972 – 975
AC IN
MHC-RG77
7-5.
Localização das Placas de Circuito
NOTA PARA DIAGRAMAS ESQUEMÁTICOS E PLACAS DE CIRCUITO IMPRESSO
Notas para placas de circuito impresso:
X : peças extraídas do lado componente
Y : peças extraídas do lado condutor
: padrão da camada que é vista
(Os outros padrões de camada não são indicados)
Indicação dos transistores
C
Q
Estes são omitidos
B E
E
Estes são omitidos
Q
B
C
Placa SUB-TRANS
Placa MAIN TRANS
Placa SENSOR
Placa CD OPEN
Placa CD SWITCH
TUNER PACK
Nota: Os componentes identificados com a marca 0 são
críticos para a segurança. Somente os substitua por pe­
ças numericamente identificadas nesse manual.
Q
B C
Notas para diagramas esquemáticos:
Todos os capacitores estão em µF a menos que especificados. pF: µµF
50 WV ou menos não são indicados, exceto para os eletrolíticos
and tantalums.
Todos os resistores estão em Ω e 1/4 W a menos que especificados.
f
: componente interno
2 : resistor anti-chama
5 : resistor fusível
C : descrição no painel
E
Estes são omitidos
Placa PAINEL
A : B+ Line.
B : B- Line.
H : ajuste para reparo
Tensões são obtidas comVOM (impedância de entrada 10 MΩ).
Variações de tensão são verificadas dentro de uma faixa
de tolerância;
Formas de onda são obtidas com um osciloscópio.
Variações de tensão são verificadas dentro de uma faixa
de tolerância;
Números circulados referem-se a formas de onda.
Simbologia
F : TUNER (FM/AM)
E : TAPE PLAY (DECK A)
d : TAPE PLAY (DECK B)
G : REC
J : CD PLAY (ANALOG)
c : CD PLAY (DIGITAL OUT)
q : MD/VIDEO (AUDIO) IN
j : GAME IN (AUDIO)
k : GAME IN (VIDEO)
N : MIC INPUT
Placa PRINCIPAL (Main)
Placa PAD SWITCH
Placa POWER
Placa VOL
Placa GAME IN
Placa MOTOR
Placa SENSOR (CD)
Placa BD
Placa DRIVER
Placa SW
Placa HEAD (A)
Placa HEAD (B)
27
27
MHC-RG77
Formas de Onda
Placa BD
7-6.
1 IC103 qg (RFAC) (Modo CD Play)
PLACA DE CIRCUITO IMPRESSO - PLACA BD - Veja pág. 27 para localização das placas de circuito.
qf IC501 qa (XC-OUT)
6 IC101 yj (XTAO)
1
2
3
4
(Page 33)
1.1 ± 0.4 Vp-p
5 Vp-p
2.4 Vp-p
A
59 ns
30.5 µs
2 IC101 wh (MDP) (Modo CD Play)
qg IC501 qd (X-OUT)
1
2
7
8
2.5 Vp-p
1.9 Vp-p
7.5 µs
Ð Placa PRINCIPAL Ð
B
M101
(SPINDLE)
IC102
M102
(SLED)
62.5 ns
qa Q302, Q303 (Base) (ModoREC)
3 IC101 el (TE) (Modo CD Play)
IC101
C
0.3 Vp-p
2.1 Vp-p
TP
(RFDC)
Ð Placa PAINEL Ð
12.1 µs
4 IC101 ra (TE) (Modo CD Play)
qs Q302, Q303 (Collector) (Modo REC)
wa IC601 is (X0)
IC103
D
10.8Vp-p
0.4 Vp-p
12.1 µs
5 IC101 t; (RFDC) (Modo CD Play)
TP
(DVC)
TP
(RFAC)
2.8 Vp-p
OPTICAL PICK-UP
BLOCK
(A-MAX.3)
250 ns
Localização dos
Semicondutores
qd Q302, Q303 (Emitter) (Modo REC)
Ref. No.
0.65 ± 0.15 Vp-p
0.4 Vp-p
12.1 µs
28
TP
(FEO)
28
Location
D101
B-4
IC101
IC102
IC103
C-3
B-2
D-2
Q101
Q102
C-1
B-4
TP
(FEI)
TP
(TEO)
MHC-RG77
7-7.
DIAGRAMA ESQUEMÁTICO - Placa BD
Veja pág. 28 para formas de onda.
Veja pág. 48 para diagrama em bloco dos IC's.
680
220k
33k
TP
(FEI)
TP
(DVC)
TP
(RFAC)
1
RV101
E-F BALANCE
(1 TRACK JUMP)
TP
(RFDC)
5
TP2
(TEO)
Q101
2SB710A-RT1
AUTOMATIC
POWER CONTROL
4
TP
(FEO)
6
DIGITAL SERVO PROCESSOR
DIGITAL SIGNAL PROCESSOR,
DIGITAL FILTER,
D/A CONVERTER
RF AMP,
FOCUS/TRACKING
ERROR AMP
3
FOCUS/TRACKING COIL DRIVE,
SPINDLE/SLED MOTOR DRIVE
2
Q102
2SD1664-T100-QR
+3.3V REGULATOR
DSP+5V (SW)
D-OUT
DSP-GND
L-CH
RF-GND
R-CH
RF+5V (SW)
A
X-RST
CD-DATA
MAIN
BOARD (1/4)
CN201
(Page
34)
X-LAT
CD-CLK
LD-ON
SQ-DATA
SQ-CLK
M-GND
M+7V (UNSW)
Tensão e formas de onda estão em DC em relação ao terra
em condição de ausência de sinal.
sem indicação : CD PLAY
29
29
Os componentes identificados com a marca 0
são críticos para a segurança. Somente os substitua por peças identificadas nesse manual.
MHC-RG77
7-8.
PLACA DE CIRCUITO IMPRESSO - PLACAS DRIVER/MOTOR/SENSOR (CD)
Veja pág. 27 para localização das placas de circuito.
M721
(TURN)
IC701
OPTICAL PICK-UP
UP/DOWN DETECT
S701
DISC TRAY
OPEN/CLOSE DETECT
C712
IC711
14
4
(14)
14
1
(14)
14
B
(14)
CN202
(Page 33)
7-9.
DIAGRAMA ESQUEMÁTICO - PLACAS DRIVER/MOTOR/SENSOR (CD) Ð
TURN
MOTOR
DRIVER
S701
DISC TRAY
OPEN/CLOSE DETECT
OPEN
CLOSE
(LOAD IN)
IC711
SG-264
DISC TRAY
STATUS SENSOR
(LOAD OUT)
D+3.3V
D+3.3V
D+3.3V
3.3
0.2
B
MAIN BOARD (1/4)
CN202
C712
0.1
D. GND
D. GND
(Pag 34)
D. GND
S711
OPTICAL PICK-UP
UP/DOWN DETECT
Tensões são dadas em DC em relação ao terra
em condição de ausência de sinal.
sem indicação : CD PLAY
30
30
MHC-RG77
7-10. PLACAS DE CIRCUITO IMPRESSO - PLACAS SW, HEAD (A) E HEAD (B)
1
2
3
4
5
6
M
A
7
8
9
10
M901
(CAPSTAN)
11
PM902
(DECK B)
PM901
(DECK A)
IC1002
IC1001
B
1
4
(DECK B PLAY)
(DECK A PLAY)
(DECK B HALF)
DECK A
HALF
C
(DECK A REC)
C
D
CN304
(Page 33)
Localização do
Semicondutor
HPRE901
(REC/PB/ERASE HEAD)
(DECK B)
E
HP901
(PB HEAD)
(DECK A)
F
R
NO302
(Page 33)
S
NO303
(Page 33)
31
31
Ref. No.
Location
D1001
D1002
B-4
B-10
IC1001
IC1002
B-2
B-10
Q1001
B-3
(DECK B REC)
12
MHC-RG77
7-11. DIAGRAMA ESQUEMÁTICO - PLACA SW
(CAPSTAN)
C1001
33
10V
CAPSTAN MOTOR
CONTROL SWITCH
TAPE SPEED
(NORMAL)
TAPE SPEED
(HIGH)
[3.3]
PM902
(DECK B)
PM901
(DECK A)
[1.5]
{∗} <<∗>>
[∗] {2.9}
<<2.9>>
[3.3]
ROTATION
DETECT
SENSOR (DECK A)
ROTATION
DETECT
SENSOR (DECK B)
CAPM−
CAPM+
CAPMH/L
ATRGM+
S1003
(DECK A HALF)
+3.3V
TRGMGND
BTRGM+
S1005
(DECK A REC)
+3.3V
S1006
(DECK B HALF)
+3.3V
C
MAIN BOARD (3/4)
CN304
(Page 36)
S1009
(DECK B REC)
S1001
(DECK A PLAY)
S1002
(DECK B PLAY)
+3.3V
Tensões e formas de onda estão em DC em relação ao terra
em condição de ausência de sinal.
[
] : TAPE PLAY (DECK A)
{
} : TAPE PLAY (DECK B)
〈〈
〉〉 : REC
: Impossivel de medir
∗
32
32
MHC-RG77
7-12. PLACA DE CIRCUITO IMPRESSO - PLACA PRINCIPAL
1
2
3
4
5
6
7
8
9
10
11
12
13
ANTENNA
FM
75Ω
A
AM
∗ SUPPLIED WITH
THE ASSEMBLED BLOCK
(Page 28)
(Page 30)
DRIVER BOARD
CN701
B
MAIN BOARD
A
TUNER UNIT
∗
BD BOARD
CN101
FOR
CHECK
B
3
1
IC601
E
C
H
PANEL
BOARD
CN601
E
IC501
(Page 42)
E
E
E
E
E
E
E
D
21
IC102
1
IC201
E
E
1
IC201
E
22
E
E
CD DIGITAL OUT
OPTICAL
42
3
E
E
E
MD/VIDEO
(AUDIO) IN
(Page 38)
F
J750
L
E
Ref. No.
E
F
E
E
GAME IN
BOARD
NO606
E
1
10
SW
BOARD
CN1001
E
(Page 31)
E
E
E
E
FOR
ADJUSTMENT
IC303
1
3
3
1
1
IC911
M
E
3
IC301
E
20
21
H
30
C
1
B
3
11
31
10
40
IC951
1
IC961
IC101
E
3
1
I
3
1
3
1
E
1
3
1
E
(Page 31) R
HEAD (A)
BOARD
CN1
(Page 31)
Location
E
E
C
G
Localização dos Semicondutores
R
8
1
E
S
E
HEAD (B)
BOARD
CN2
9
4
6
1
3
IC302
M901
(FAN)
D121
D122
D501
D502
D503
D504
D505
D508
D509
D601
D602
D603
D841
D906
D907
D908
D909
D914
D915
D916
D917
D918
D919
D920
D921
D922
D923
D924
E-9
E-8
E-3
C-5
E-3
C-5
B-2
B-2
E-3
C-5
B-4
C-5
F-8
J-8
J-8
J-8
I-8
J-8
J-8
J-8
I-8
J-7
J-7
H-8
H-8
H-9
J-7
J-7
IC101
IC102
IC201
IC301
IC302
IC303
IC501
IC601
IC911
IC951
IC961
I-8
E-10
E-12
H-5
I-5
G-5
C-3
B-4
G-7
I-7
I-8
E
J
E
2
J401
E
VIDEO OUT
E
13
1
13
1
E
K
E
11
1-683-545-
(CHASSIS)
K
POWER BOARD
CN503
G
(Page 40)
POWER BOARD
CN502
(Page 40)
33
33
D
GAME IN
BOARD
NO607
(Page 38)
(11)
HCD-RG66T (E) MAIN
Ref. No.
Location
Q101
Q103
Q151
Q153
Q201
Q202
Q203
Q204
Q205
Q206
Q207
Q251
Q301
Q302
Q303
Q304
Q305
Q306
Q307
Q310
Q389
Q390
Q391
Q392
Q393
Q394
Q395
Q396
Q397
Q398
Q399
Q504
Q505
Q601
Q812
Q861
Q862
Q891
Q892
Q911
Q912
E-8
F-10
E-8
F-10
C-7
C-8
C-9
C-9
C-9
D-7
D-7
D-7
J-6
J-6
J-5
I-5
I-4
G-4
J-6
J-6
G-4
G-6
F-4
F-4
F-4
F-3
F-4
F-4
F-3
G-6
G-5
E-5
E-5
C-5
K-4
E-4
K-4
H-11
H-11
H-7
G-7
MHC-RG77
7-13. DIAGRAMA ESQUEMÁTICO - PLACA PRINCIPAL (1/4)
(1/4)
∗SUPPLIED WITH
(Page 39)
THE ASSEMBLED
CN702
11P
CN783
2P
27
25
GM(V)-SIG
ST-DOUT/MC-DIN
23
GM(V)-GND
ST-DIN /MC-DOUT
22
JW704
BLOCK
ST-CLK
ST-CE
FM
75Ω
ST+10V
J401
1P
VIDEO OUT
TUNER
0.022
ANTENNA
UNIT
STEREO
2
C703
∗
TUNED
3
C704
0.022
ST-L
AM
A-GND
ST-R
ST-MUTE
21
EPT901
R190
2.2k
(CHASSIS)
C190
10
50V
C157
0.47
50V
R191
2.2k
R155
1M
C705
0.1
A1
A2
A3
Q151
2SC1623
R153
10k
C165
0.33
ZZ2
R163 1k
R164 47k
R166
10k
L201
100µH
D122
1SS355
82
R122
1k
C122
470p
3.3V
C201
100
10V
D.GND
D841
1SS355
SWITCH
C200
0.1
D-OUT
OPTICAL
R156
100k
FEED BACK
OPTICAL
CD DIGITAL OUT
ZZ1
A5
R162
510
C163
10
50V
C175
4.7 50V
TRANSCEIVER
A4
R154
47k
C161
0.0068
C160
0.033
C140
0.1
C159
0.022
R180
10k
R701 C701 R702
1k 220p 100k
C158
0.022
FB701
R152
10k
C156
10 50V
C180
0.068
R
AA1
AA2
C155
10 50V
C702
2.2 50V
(AUDIO)IN
C162
1
50V
R151
2.2k
C164
0.22
AA1
AA4
MD/VIDEO
C752
2.2
50V
C168
10 50V
R751 C751 R752
1k 220p 100k
FB751
C153
10 50V
J750
2P
L
R157
4.7k
R165
10k
Q153
2SC3661
MUTING
C104
R108
10 50V
1k
C228 0.01
FB201
C224 0.47
CN201
21P
PWM3
C226 0.0047
IC201
TOTX141
AA3
(Page 35)
R109
33k
R224
2.2k
R204
10k
24
INPUT SELECT
PWM2
R226 330k 26
PWM1
R228 100k 28
Q201
2SC3661
MUTING
SWITCH,
A6
C189
0.1
TONE CONTROL,
R254
10k
IC102
M61519FP
ELECTRICAL
DSP+5V(SW)
DSP-GND
C203
0.022
L-CH
C205 0.022
RF-GND
FB203
Q103
2SC3661
MUTING
C154 10 50V
AA4
R158 1k
MUTING
R286 22k
C206 0.1
FB211
0
43
CD-DATA
FB212
0
35
X-LAT
FB213
0
36
FB214
0
37
R212 0
FB216
0
32
R217 0
FB217
0
34
FB218
0
33
X-RST
C207 1000 6.3V
CD-CLK
LD-ON
R285
22k
50
SENS
SQ-CLK
R284
470k
Q206
FA1A4M
Q207
FN1F4M
FB215 0
SQ-DATA
ZZ3
RF+5V(SW)
Q251
2SC3661
R159
33k
FB204
FB210 0
R-CH
(Page 29)
C202
1000
6.3V
R115 10k
VOLUME
D-0UT
Q206,207
C121
470p
MUTING CONTROL
D121
1SS355
A7
SWITCH
R121
1k
A8
81
FB208 0
SCOR
R219 0
FB219
0
19
R206
10k
M-GND
R208
10k
44
MTR CNT1(LOAD OUT)
45
D+3.3V
OPEN SW
46
CLOSE SW
47
BU UP/DOWN SW
48
TBL ADDRESS SW
49
Q202-205
LASER DIODE ON
SWITCH
C109
0.022
C108
0.022
C105
10 50V
C110
0.033
R105
10k
R101
2.2k
C112
1
50V
C111
0.0068
Q101
2SC1623
FEED BACK
R102
510
C113
10
50V
C114
0.22
C115
0.33
C125
4.7
50V
R104
47k
SWITCH
R116 10k
R113 1k
R114 47k
C1
Q203
2SA812
M+7V
C119
10
50V
R103
10k
C106
10 50V
C211
0.022
MTR CNT2(LOAD IN)
AA2
C212
0.001
C116
100
16V
C118
10 50V
Q202
2SC1623
C150
10 50V
FB220
0
AA3
MGND
40
R207 10k
CN202
10P
Q204
2SA812
C101
100 16V
C210 C209
0.1
470
10V
C103
10 50V
M+7V(UNSW)
C117
0.1
R150
2.2k
Q205
2SC1623
R209
10k
C3
C4
C6
D.GND
(Page 37)
C7
(Page 36)
34
34
B8
B7
B6
B5
B4
B3
B2
C8
B1
(Page 30)
Tensões e formas de onda estão em DC em relação ao terra
em condição de ausência de sinal.
sem indicação : TUNER (FM/AM)
(
) : CD PLAY
MHC-RG77
7-14. DIAGRAMA ESQUEMÁTICO PLACA PRINCIPAL (2/4)
(2/4)
Q891
2SB1116
C892
0.1
JW813
CN891
3P
3
R921
47
1W
JW815
2
FAN­
R891
10k
FAN+
R893
2.2k
M891
(FAN)
Q891,892
FAN MOTOR
DRIVE
Q892
2SC2603
A1
CN781
10P
GM(A)-R
A2
A3
GM(A)-GND
GM(A)-L
A4
C783
0.1
MIC-AGND
MIC-SIG
A5
A+10V
HP-R
HP-GND
HP-L
(Page 39)
HEADPHONE CONTROL
CN901
13P
SW PROTECT
POWER-GND
R819
680
2W
C813
4.7
100V
POWER-GND
HP-L
HP-R
R869
680
2W
-B
C863
4.7
100V
88
SP PROTECT IN
FAN DET
(Page 34)
R861
1k
Q504
FN1F4M
MUTING
R864
1k
C861
47
50V
CONTROL
A6
SWITCH
R863
100k
R865
100k
Q862
2SC3661
HEADPHONE
R862
10k
87
R892
4.7k
R866
56
DBFB FEEDBACK
ZZ2
R-IN
MUTING
R508
15k
Q861
FN1F4M
MUTING
CONTROL
CONTROL
SWITCH
SWITCH
(Page 41)
A-GND
ZZ3
Q505
FA1A4M
MUTING
FRONT RELAY
ZZ1
L-IN
R814
1k
Q812
2SC3661
HEADPHONE
R816
56
78
80
MUTING
A7
A8
R510
470k
(Page 37)
D7
D8
D5
D2
D4
R501
68k
D1
C504
1
50V
Tensões e formas de onda estão em DC em relação ao terra
em condição de ausência de sinal.
sem indicação : TUNER (FM/AM)
Os componentes identificados com a marca 0
são críticos para a segurança. Somente os substitua por peças identificadas nesse manual.
35
35
MHC-RG77
7-15. DIAGRAMA ESQUEMÁTICO - PLACA PRINCIPAL (3/4), PLACA HEAD (A) E HEAD (B)
B8
B7
B6
B5
B3
B4
B1
B2
(Page 34)
(3/4)
JR390
E1
IC303(2/2)
NJM4565M(TE2)
C399
0.01
R397
15k
E2
R394
10k
53
C398
0.01
E3
LOW-PASS
IC303(1/2)
NJM4565M(TE2)
FILTER
R302
4.7k
R398 2.2M
C395 22p
R313
1k
R327
15k
R333
2.2k
R315
10k
C315
1
R365
10k
C365
1
C397
10
50V
R388
22k
R387
10k
R320
2.2k
Q390
FA1A4M
BUFFER
R334
100k
MUTING
Q398
FA1A4M
R395
4.7k
GND
Q389
FA1A4M
SWITCH
C390
470
10V
R314
1k
R301
3.3k
C306
2.2
50V
C304
C301
0.01
BUFFER
R396
10k
C305
1
50V
C303
0.1
BUFFER
Q399
2SC3624A
MUTING CONTROL
C391
100
10V
R305
47k
RV301
47k
C316
1
Q306
FA1A4M
L
R304
2.2k
R330
22k
R362
10k
CN301
3P
C311
10
50V
C314
2200p
C396
22
50V
R390
10k
TP325
TP318
DECK A/B SELECT
(FOR ADJUSTMENT)
SWITCH,
R
REC/PB EQ AMP,
NC
REC-OUT1
ALC1
NC
REC-IN1
TAI1
EQOUT1
PBEQ1
PB-NF1B
PBNF1A
C309 47 16V
PB-OUT1
ALC
IC301
HA12237
TEST
TP320
R306
22k
AIN1
YY1
I-REF
C310 10 50V
REC/PB SWITCHING
GND
SW.R2
VCC
SW.P2
GND
YY1
BIN2
L-PB
(REC/PB/ERASE)
TP301
1
C326
390p
C332
0.00012
YY3
L302
100µH
R308
100
61
R309
4.7k
58
R310 100
67
R311 100
ALC ON/
OFF
66
R312 100
68
(Page 37)
C333
330p
Q304
FN1F4M
GND
REC-OUT2
C359
47
16V
NO303
8P
CN2
6P
HRPE901
PBNF2B
(CHASSIS)
NC
PBNF2A
BLOCK
(TCM-230AWR41)
NORMAL/HIGH
SPEED
ALC2
MECHANISM DECK
AIN2
YY2
C385
10
50V
R393
4.7k
C308
470
16V
A/B
REC-IN2
TAPE
C312
10 50V
MUTE
ON/OFF
NC
TP338
C307
10
50V
REC MUTE
ON/OFF
GND
C371
390p
R307
1M
VCC
YY2
YY5
R-CH
ALC
DET
NC
TP323
GND
BIN1
RECRETN
PB-OUT2
TP322
R-PB
RIP
TAI2
GND
YY3
EOUT2
TP321
C321
390p
IC302
µPC1330H
PBEQ2
L-CH
NO302
3P
L-PB
CONT.
CN1
3P
SW.P1
HP901
(PB)
GND
SW.R1
(DECK A)
R332
8.2k
R342
2.2k
TP304 C376
Q304,305
390p
YY5
L301
27mH
REC/PB SWITCHING
R329
10k
GND
C351
0.01
TP308
Q305
FA1A4M
YY6
E-HOT
YY6
YY4
TP307
YY3
TP306
GND
R351
3.3k
C331
0.01
YY5
ERASE
R-REC
C354
TP309
R-PB
R-CH
C355
1 50V
TP303
C353
0.1
L-REC
TP311
L-CH
C356
2.2
50V
R380
22k
C361
10
50V
7
L351
27mH
RV304
220k
(CHASSIS)
R371
47k
YY4
CN304
17P
BMETAL
C334
27p
C384
27p
C382
0.00012
R352
4.7k
R370
2.2k
R354
2.2k
RV351
47k
R355
47k
E4
Q302,303
T301
70
AHALF
R316
10k
BIAS OSC
R375
75k
A 120 /70
+3.3V
Q302
2SC2001
BIAS OSC
R377
47k
C337
15000p
DGND
C340 18000p
R374
47k
90
6800p
56
6800p
APLAY.SW
BSHUT
Q307
2SA812
R360
680
C339
R373
1k
R345 18k
91
R346 18k
BHALF
R328
2.2k
R317
10k
XX1
TRGMGND
ATRGM+
XX2
CAPMH/L
XX3
XX4
R378 75k
C335
0.01
100V
Q391
2SB1116
R367
47k
R364
680
Q393
2SB1116
Q391,392
Q396
2SB1068
Q393,394
TRIGGER PLUNGER
TRIGGER PLUNGER
DRIVE(DECK B)
DRIVE(DECK A)
C362
4700p
R361
2.2k
R391
2.2k
C363
4700p
R363
2.2k
Q396,397
CAPSTAN MOTOR
DRIVE
Q301,307,310
REC BIAS
R366
3.3k
R399
2.2k
R368
3.3k
R369
3.3k
SWITCH
89
ASHUT
CAPM+
C364
2200p
R392
2.2k
R382
8.2k
Q301
2SC3624
B 120 /70
(Page 32)
C381
0.01
R379
10k
57
BPLAY.SW
BTRGM+
C383
330p
RV354
220k
TP317
C338
(DECK B)
Q303
2SC2001
C336
2.2
50V
R343
5.6
C341
10
50V
R344
5.6
C342
47
16V
R347
3.3k
Q392
FA1A4M
Q395
FA1A4M
Q394
FA1A4M
Q397
FA1A4M
INVERTER
Q310
FA1A4M
CAPM-
E5
69
52
65
XX1
51
XX2
XX3
54
55
XX4
E6
E7
Tensões e formas de onda estão em DC em relação ao terra
em condição de ausência de sinal.
[
] : TAPE PLAY (DECK A)
{
} : TAPE PLAY (DECK B)
〈〈
〉〉 : REC
36
36
The components identified by mark 0 or dotted
line with mark 0 are critical for safety.
Replace only with part number specified.
MHC-RG77
7-16. DIAGRAMA ESQUEMÁTICO - PLACA PRINCIPAL (4/4)
D7
D8
D5
D4
D1
D2
C6
C1
C8
C7
(Page 35)
C3
C4
(Page 34)
(4/4)
73
74
75
E1
E2
R574 10k
R573 10k
R579
10k
FB562
R580
10k
53
51
52
54
55
56
58
57
R557 100
C562
100
10V
R470
100
R556 100
61
65
66
70
67
68
69
76
77
78
80
E3
CN401
30P
C564
0.01
41
GC-RESET
29
IIC-CLK
TP463
30
IIC-DATA
SIRCS
4
73
KEY INT DISPLAY
74
KEY INT POWER
75
POWER LED
D-GND
D-GND
D-GND
D-GND
GC+4V
D+4V
81
D+4V
STBY-RELAY
86
R584
100
TP485
NO-USE
LINK-RELAY
B-TRIG
AMS-IN
A-PLAY
CAPM-H/L
CAPM-CNT1
B-PLAY
TC-MUTE
SW-ON-LED
REC-MUTE
VCC
SOFT-TEST
VSS
BIAS
EQ-H/N
ALC
PB-A/B
A-HALF
TC-RELAY
SW-LINK-LED
EVER+4V
A-TRIG
EVER+4V
50
CD-MUTE
TBL-SENS
BU UP/DOWN-SW
CLOSE-SW
OPEN-SW
LOAD-OUT
87
FRONT-RELAY
49
R448 100
48
R447 100
47
R446 100
46
R545 100
45
R544 100
44
VG
R543 100
43
A+10V
R541 10k
A+10V
PROTECTOR
R589 100
91
R590 100
A-SHUT
NO-USE
B-SHUT
GC-RESET
VF(2)
VF(2)
R546
10k
VG
41
C546 0.001
R540 100
LD-ON
B-HALF
R591 100
VF(1)
XRST
R488 100
90
VF(1)
LOAD-IN
88
89
A+10V
40
A+10V
SPEANA
MODEL-IN
CLOCK-OUT
TP439
38
R493
4.7k
NO-USE
BU-PWM1
35
R434 470
34
R433 100
33
R432 100
32
TXD1
IICDATA
R918
2.2k
R917
2.2k
+5V REGULATOR
IC911
µPC7805A
C433
47p
Q912
FA1A4M
I
G
C432
47p
TP431
R919
2.7k
C434
47p
O
IIC-CLK
ST-CLK
ST-DIN
BU-PWM2
ST-CE
ST-DOUT
BU-PWM3
ST-MUTE
AC-CUT
SCOR
NO-USE
NMI
VCC
X-IN
RESET
XC-OUT
XC-IN
GND
SIRCS
NO-USE
GND
SQ-DATA-IN
USE
SUR3
AVCC
SUR2
SQ-CLK
SUR1
VREF
NO-
R535 470
SPEANA
Q911
RT1P137L-TP
B+ SWITCH
SENS
TUNED
E4
36
CD-DATA
SW-RELAY
STEREO
C498
0.1
37
R536 100
XLT
IC501
M30620MCN-A00FP
AVSS
C598
10
50V
R537 470
CD-CLK
(CD MECHANISM CONTROL)
TP437
SPEANA
CD-POWER
SYSTEM CONTROLLER
SW-AD-KEY
VSS
R492
0
X-OUT
R593
1k
B+ SWITCH
C912
2200
6.3V
R532
47k
38
DEST-IN
(Page
36)
(Page 43)
EVER+4V
R548
10k
R549 100
R547 10k
84
SW-MATRIX-SURR-2-LED
STK-MUTE
SW-MATRIX-SURR-1-LED
STBY-LED
POWER-KEY
GEQ CLK
HP-MUTE
DATA
AUDIO OUT
ON/OFF
VIDEO-OUT
GAME/VCD
LINE-
GEQ
MUTE
R588
10k
R583
100
DISPLAY-KEY
83
HP-DETECT
R585
10k
82
C911
0.1
D509
1SS355
RR1
C914
0.1
D508
1SS355
R509
10k
IC951
µPC3504
O
R429 100
R430 100
C925
470
10V
TP529
R530
10k
R575
10k
R602
4.7k
FB516
D602
1SS355
D601
1SS355
R603
47k
R601
220
IC601
M62703ML
C603
0.1
D505
1SS355
R604
47k
C602
0.1
RR2
RR3
D914
11ES2N
CN902
13P
C916
0.1
-VG
EVER+4V
D917
11ES2N
D920
11ES2N
RR4
VF(2)
RR3
I
D909
11ES2N
G
C922
470
16V
C921
0.1
C920
3300
25V
RR1
AC4(1)
RR2
AC4(2)
RR3
D906
11ES2N
RR4
+10V REGULATOR
D504
GENERATOR
C917
0.1
C909
1000
25V
D907
11ES2N
IC101
M5F7810L
RESET SIGNAL
STBY RELAY
84
C918
0.1
I
C601
10
50V
D916
11ES2N
VF(1)
C961
0.1
O
O
G
D603
1SS355
C910
2200
16V
+9V REGULATOR
I
C962
470
10V
D503
RESET
SWITCH
O
C932
470
10V
D502
1SS355
Q601
2SC1623
C951
0.1
G
TP514
C416
0.1
C516
2200
6.3V
D919
11ES2N
D-GND
IC961
AN7809
D921
11ES2N
C530
100p
R503
10k
C512
0.1
JW951
D915
11ES2N
D922
11ES2N
R502
10k
D918
11ES2N
C915
0.1
TP530
29
28
26
27
25
24
23
R419 0
R420 4.7k
22
X502
16MHz
D924
11ES2N
R529
10k
21
C510
22p
19
4
3
2
FB599
R517 10k
X501
32.768KHz
C502
0.022
C511 15p
C596
0.1
30
R511 330k
D501
1SS355
R513
0
D923
11ES2N
+4V REGULATOR
I
G
AC3(1)
(Page 41)
AC3(2)
86
LINK RELAY
83
STK MUTE
FAN ON
D908
11ES2N
C919
0.1
RR4
CN501
4P
E5
IIC-CLK
IIC-DATA
D-GND
(FOR CHECK)
E6
D+3.3V
TP516
E7
Tensões e formas de onda estão em DC em relação ao terra
em condição de ausência de sinal.
sem indicação : TUNER (FM/AM)
(
) : CD PLAY
37
37
[
{
〈〈
∗
] : TAPE PLAY (DECK A)
} : TAPE PLAY (DECK B)
〉〉 : REC
: Impossivel de medir
MHC-RG77
7-17. PLACA DE CIRCUITO IMPRESSO - PLACA GAME IN
F
GAME IN BOARD
(Page 33)
(Page 33)
MAIN BOARD
CN781
MAIN BOARD
CN783
D
1
IC722
1
(CHASSIS)
2
8
1
5
4
2
10
(CHASSIS)
3
RV722
5
4
MIC
LEVEL
2
3
4
6
1
7
J631
5
1
PHONES
11
1-683-534-
R
L
AUDIO
J721
MIC
VIDEO
GAME
INPUT
J601
38
38
(11)
MHC-RG77
7-18. DIAGRAMA ESQUEMÁTICO - PLACA GAME IN
J721
MIC
IC722(1/2)
NJM4565D
3
R742
1k
C740
100p
C741
0.15
50V
R740
2.2k
(CHASSIS)
R743 C744
10k 0.001
1
R739
100k
4
R737
22k
R745
100
MIC AMP
R738
1k
C716
47p
C743
470p
R734
100
R735
180k
2
C748
0.022
CLP702
C747
2.2
50V
C749
0.1
RV722
50k
C738
2.2
50V
IC722(2/2)
NJM4565D
6
C719
2.2 R736
50V 10k
R744
100k
5
7
8
MIC
LEVEL
EP703
C715
47p
(CHASSIS)
C636
0.1
R602
1k
C736
10
50V
C737
10
50V
VIDEO
R604
100k
J601
3P
L
GAME
INPUT
C604
2.2
50V
C634
0.001
JW611
AUDIO
R
R603
1k
NO607
2P
GM(V)-SIG
GM(V)-GND
R605 C606
100k 2.2
50V
TP731
TP732
JW613
(Page 34)
(Page 35)
NO606
10P
GM(A)-R
C635
0.001
TP733
GM(A)-GND
TP734
GM(A)-L
TP735
MIC-AGND
TP736
MIC-SIG
TP737
A+10V
TP738
HP-R
TP739
HP-GND
HP-L
TP741
HEADPHONE CONTROL
TP742
JW610
C630
0.001
C631
0.001
J631
PHONES
R721
12k
JW603
Q721
2SC2785TP
MIC
CONTROL
JW609
C718
100
10V
EP701
(CHASSIS)
39
39
R746
1k
C717
100
10V
R722
18k
MHC-RG77
7-19. PLACA DE CIRCUITO IMPRESSO – PLACAS POWER/SENSOR –
• Localização dos
Semicondutores
Ref. No.
1
2
3
(Page 33)
Location
D501
D502
D503
D504
D506
D507
D508
D509
D510
D511
D543
D551
D581
D941
D-7
B-7
E-6
F-9
H-7
G-8
C-2
C-2
I-7
G-8
E-3
D-8
C-3
F-2
IC501
E-9
Q501
Q502
Q503
Q504
Q505
Q506
Q507
Q508
Q509
Q510
Q511
Q512
Q513
Q551
Q581
Q831
Q941
D-7
B-5
C-3
C-3
B-4
B-4
B-7
B-7
B-6
B-5
B-5
B-5
B-3
D-7
B-3
B-4
F-1
4
6
G
8
9
10
MAIN BOARD
CN901
POWER BOARD
A
7
(Page 33)
MAIN BOARD
CN902
K
5
(CHASSIS)
13
1
13
1
E
E
E
E
B
3
N
SUB-TRANS
BOARD
CN976
1
E
E
E
E
E
E
E
(Page 46)
E
1
E
C
E
M
MAIN
TRANS
BOARD
CN997
1
2
(Page 46)
13
D
4
4
E
E
IC501
E
1
1
B
C
F
E
(CHASSIS)
G
TM501
+
H
R
SENSOR BOARD
−1
−
−2
+
FRONT SPEAKER
IMPEDANCE USE 6-16Ω
L
−
+
R
−1
−
SURROUND SPEAKER
IMPEDANCE USE 24Ω
−2
I
+
L
−
2
1
11
11
1-683-542-
40
40
(11)
1-683-541-
(11)
MHC-RG77
7-20. DIAGRAMA ESQUEMÁTICO – PLACAS POWER/SENSOR
C509
22
100V
R520
3.3k
1W
R511
100
D504
MTZJ-T72-18C
R527
56k
R510
0.1
5W
R528
47k
R529
22k
RY501
R530
22k
-1
JW566
C501
4.7 R501
50V
1k
TM501
-2
JW567
C515
2.2
50V
R539
330
2W
R
FRONT SPEAKER
IMPEDANCE USE 6 − 16Ω
Q512
BA1F4M
FRONT SPEAKER
R537
10k
Q509
2SA1175
Q502
2SC2785
PROTECT
OVER LOAD
DETECT SWITCH
Q508
2SC2785
R514
2.2k
Q503
2SA988TP
STANDBY
C552
470p
R552
47k
R506
22k
STANDBY
SWITCH
C581
22
50V
R581
33k
C559
22
100V
C554
100
10V
R512
1
D501
1SS133T
R524
3.3k
1W
R517
10k
R522
100k
R521
100k
R559
10
1/2W
R516
10k
R556
22k
R557
100k
D543
D5SBA20
Q513
BA1F4M
SURROUND
Q505
2SC2785
Q831
2SC2785
FAN MOTOR
ON SWITCH
2
1
4
SPEAKER
PROTECT
RELAY
DRIVE
C526
10
50V
C546
2200
100V
R542
100k
EP501
C545
0.1
100V
3
C541
0.1
2
C513
0.01
R541
100k
VH
OVER LOAD
VH
TEMPERATURE
DETECT
R555
1k
NO501
13P
Q505,506
R531
220
DETECT SWITCH
R558
0.1
5W
C596
2200
100V
IC501(2/2)
STK412-150
GND
C544
0.1
100V
R592
100k
C592
3300
50V
GND
R591
100k
VL
C591
0.1
VL
AA1
AC3
AA2
AC3
AA3
AC4
AA4
AC4
VP
R560
0.1
5W
Q941
2SB1375
R554
47k
AA5
VF
AA6
VF
R943
1k
D941
MTZJ-T-72
-33D
C512
0.01
C943
100
50V
(CHASSIS)
R942
8.2k
R945
8.2k
NO504
3P
C942
10
50V
D-GND
AA7
EVER+4V
AA8
STBY RELAY
CN502
13P
(Page 47)
L-IN
CN503
13P
A-GND
-VG
R-IN
DBFB FEEDBACK
(Page 35)
(Page 47)
-33V
REGULATOR
EP502
C525
0.01
4
Q551
2SC1841
JW561
C551
4.7 R551
50V
1k
C523
0.01
3
1
C557
0.068
POWER AMP
TH701
C524
0.01
D510
1SS133T
D541
D5SBA204101
R533
47k
C558
0.068
R561
100
C553
220p
R565
4.7k
(CHASSIS)
Q506
2SC2785
NO505
2P
R564
4.7k
R532
560k
R540
330
2W
R509
10
1/2W
D551
1SS133T
D503
MTZJ-T72-18C
CN701
2P
L
-1
C508
0.068
R519
68k
R518
33k
R553
220 (RG77)
470 (GX8000)
R523
82k
C507
0.068
SWITCH
C504
100
10V
C517
10
50V
R507
100k
JW573
C502
470p
Q511
2SC2785
C516
Q510
100 2SC2785
10V
SURROUND SPEAKER
IMPEDANCE USE 24Ω
JW563
RY502
C542 3300 50V
Q581
2SC1841
STANDBY
R545
4.7k
JW517
R502
47k
R544
10k
R
-2
R513
33k
Q504
2SC1841
R503
220 (RG77)
470 (GX8000)
C514
100
10V
JW604
DETECT
SWITCH
D581
1SS133T
R582
33k
Q507
2SC2785
Q501
2SC1841
OVER LOAD
L
SWITCH
R543
68k
R515
22k
R548
47k
DRIVE
Q509 − 511
R504
47k
R547
47k
PROTECT RELAY
D509
1SS133T
D502
1SS133T
D511
1SS133T
Q507,508
DC DETECT SWITCH
D507
1SS133T
R505
1k
R538
47k
D506
1SS133T
R508
0.1
5W
D508
1SS133T
IC501(1/2)
STK412-150
R546 22k
C503
220p
D-GND
FRONT RELAY
AA7
EVER+4V
FAN DET
AA8
STBY RELAY
SP PROTECT IN
AA6
VF(1)
-B
AA5
VF(2)
HP-R
AA4
AC4(1)
HP-L
AA3
AC4(2)
POWER-GND
AA2
POWER-GND
AA1
SW PROTECT
AC3(1)
AC3(2)
LINK RELAY
FAN ON
STK MUTE
• As tensões estão em DC em relação ao terra,
em condição de ausência de sinal.
sem indicação : TUNER (FM/AM)
41
41
(Page 37)
MHC-RG77
7-21. PLACAS DE CIRCUITO IMPRESSO - PAINEL / CD OPEN / CD SWITCH
1
2
3
4
5
6
7
8
9
10
PANEL BOARD
A
9
1
3
5
63
8
66
68
70
62
6
FL601
FLUORESCENT INDICATOR TUBE
1
E
D794, S749
I/
B
1
100
D605, S787
E
CD
IC601
30
81
E
80
D604, S786
31
TUNER/BAND
30
E
29
C
50
51
D606, S785
TAPE A/B
E
H
MAIN
BOARD
CN401
D
D607, S784
1
8
MD (VIDEO)
(Page 33)
(FOR CHECK)
E
D608, S783
2
1
GAME
8
1
E
9
Localização do
Semicondutor
Ref. No.
Location
D604
D605
D606
D607
D608
D610
D612
D614
D791
D792
D793
D794
D795
C-10
B-10
C-10
D-10
D-10
B-3
B-3
C-3
H-7
H-6
H-5
A-10
G-1
IC601
IC602
C-5
F-1
Q601
Q602
Q603
Q604
Q605
Q791
Q792
Q793
Q794
Q795
B-10
B-10
C-10
D-10
D-10
H-8
H-8
H-5
A-10
G-2
1
IC602
10
18
P
F
S782
PAD SWITCH
BOARD
NO605
GAME MIXING
(Page 44)
S779
CD SYNC
HI-DUB
E
G
D795, S751
REC
PAUSE/START
11
1-683-533-
CD OPEN BOARD
S749,751
S779 − 792
CD SWITCH BOARD
H
S791
S792
OPEN/CLOSE
D793, S790
D792, S789
DISC 3
DISC 2
11
1-683-538-
E
E
EX-CHANGE
DISC SKIP
E
6
1
D791, S788
11
DISC 1
(11)
1-683-537-
42
42
(11)
(11)
MHC-RG77
7-22. DIAGRAMA ESQUEMÁTICO - PLACAS PAINEL / CD OPEN
/ CD SWITCH
FL601
TP657
R825 390
NP
F2
NP
F2
F2
NP
TP658
TP656
R824 680
NP
G15
TP655
R823 680
G12
G13
TP654
R822 680
G14
G11
TP653
R821 680
G9
G10
TP652
R820 680
G7
G6
G5
G4
G8
TP651
R819 390
TP650
TP649
TP648
TP647
G2
G1
P1
G3
TP646
TP645
TP644
TP643
P3
P4
P5
P6
P2
TP642
TP641
TP640
TP639
TP638
P8
P9
P10
P11
P12
P7
TP637
TP636
TP635
TP634
TP633
TP632
TP631
P15
P14
P16
P17
P18
P19
P20
P21
P22
P23
P24
P25
P13
TP630
TP629
TP628
TP627
TP626
TP625
TP624
TP623
TP622
TP621
TP620
TP619
P27
P26
TP618
TP617
P29
P30
P31
P28
TP616
TP615
TP614
TP613
P33
P32
TP612
TP611
P36
P35
P34
TP610
TP609
TP608
P38
P41
P39
P40
P37
TP607
57
TP606
58
DISC 1 LED
TP605
59
DISC 2 LED
TP603
DISC 3 LED
TP602
NO602
6P
TP604
NP
NP
F1
F1
NP
F1
NP
FLUORESCENT INDICATOR TUBE
R646
100
R647
100
C653
10
50V
86
87
89
88
93
94
95
96
97
98
99
100
1
2
3
4
5
6
7
8
9
10
12
13
14
15
16
17
18
19
20
21
22
24
25
26
27
28
29
30
31
32
33
34
35
37
36
38
40
39
43
41
44
GC DGND
90
C652
10
50V
KEY 2
91
C651
0.1
+4V
92
TP601
S787
CD
C710 0.01
TP701
61
TP702
IIC-CLK
60
TP703
IIC-DATA
D610
MTZJ-T-72-5.1B
S785
TAPE A/B
R786
4.7k
P1
P2
P3
P4
P5
P7
P6
P9
P8
P10
P31
3G
P32
4G
P33
5G
P34
6G
P35
7G
98
97
R607
270k
96
R682
22k
95
37
C608
10
50V
94
38
93
92
FLUORESCENT INDICATOR TUBE DRIVER,
P37
40
C609
0.0033
9G
91
P38
KEY CONTROL
P39
IC601
MB90M407PF-G
-114-BND
41
10G
90
11G
13G
P41
14G
NO-USE
15G
NO-USE
NO-USE
NO-USE
VCC-CPU
87
LED-MD-VIDEO
VOLUME-B
SOFT-TEST
RESET
NO-USE
NO-USE
LED-REC
ALL-BAND
BPF5
BPF0
BPF1
BPF2
BPF3
BPF4
KEY2
KEY1
KEY0
AVSS
AVCC
I2C-CLOCK
I2C-DATA
LED-DISC3
LED-DISC2
LED-GAME
LED-DISC1
LED-TUNER
MD1
R662
10k
MD2
R663 10k
S779
LED-TAPE
MD0
66
F01
LINE
NF
LINE
IN
REC
NF
REC
IN
F02
RST.C
F06
BIAS
GND
F03
D-GND
TP709
D-GND
TP710
D-GND
D-GND
GC+4V
C620
0.01
X0
VSS-CPU
D+4V
R660
1M
EVER+4V
TP716
EVER+4V
TP674
71
TP675
70
TP676
69
TP718
VF(1)
TP677
68
TP719
VF(1)
F05
TP678
67
TP720
VF(2)
TP679
72
TP721
VF(2)
TP680
73
R618 10k
L+R
TP722
VCC
VG
EVER+4V
TP717
C613
6.8
50V
R601
82k
D612
IIES2
C611
10
50V
C619
47
10V
D+4V
TP715
(Page 37)
F04
R613
27k
X1
LED-CD
48
VKK
R780
680
C610
10
50V
R01
TP681
86
HI-DUB
R614 33k
RST
88
P40
44
CD SYNC
R612
22k
R02
12G
43
C622
4.7
50V
POWER LED
TP708
TP714
89
VSS-IO
R781
1k
R611
47k
8G
P36
39
R782
1.5k
IC602
BA3830F-E2
R606
270k
FB603
P11
P12
P13
P14
P17
P16
P15
P19
P18
99
2G
35
R783
1.5k
KEY INT POWER
TP707
TP713
1G
P30
36
GAME MIXING
TP706
TP712
34
S782
KEY INT DISPLAY
TP711
100
33
R784
2.2k
SIRCS
TP705
FILTER
32
S783
GAME
TP704
48
P29
VSS-IO
31
P20
P21
P23
P22
P26
P25
P24
VDD-FIP
R785
3.3k
P27
P28
BAND-PASS
S784
MD(VIDEO)
GC-RESET
77
1
2
3
4
5
6
7
8
9
10
12
13
14
15
16
17
18
19
20
21
22
24
25
26
28
29
R787
6.8k
27
C711
0.01
30
S786
TUNER/BAND
CN601
30P
R645
10k
C612
0.01
R681
680
R680
330
D614
IIES2
C618
0.01
X601
4MHz
TP723
VG
TP724
A+10V
TP725
A+10V
TP726
A+10V
TP727
A+10V
TP728
SPEANA
TP729
SPEANA
TP730
SPEANA
NO604
8P
64
KEY 0
VOLUME-A
R779
470
D794
SELS5223S
D795
SLR325VC
S751
D608
SEL5923A
D607
SEL5923A
GAME
MD(VIDEO)
D606
SEL5923A
D605
SEL5923A
TAPE A/B
D604
SEL5923A
CD
65
KEY 1
79
VOL 1B
80
TUNER/BAND
VOL 1A
KEY INT DISPLAY
REC
DGND
R658
15k
R657
15k
R654
100
R817 1k
R818 1k
77
79
80
74
73
C629 0.01
C628 0.01
72
71
68
69
70
C627 0.01
C712
0.01
C626 0.01
R661
10k
C625 0.01
C624 0.01
67
66
PAUSE/START
65
R655 100
61
59
58
56
57
55
54
53
51
49
52
64
R656 100
PAUSE/START
60
REC
EVER +4V
R630
330
R629
330
R628
330
R627
330
R626
330
SIRCS
R653
10k
Q794
BA1A4M
Q795
BA1A4M
Q605
BA1A4M
Q604
BA1A4M
Q603
BA1A4M
Q602
BA1A4M
Q601
BA1A4M
LED DRIVE
LED DRIVE
LED DRIVE
LED DRIVE
LED DRIVE
LED DRIVE
LED DRIVE
74
R659
15k
R751
470
56
54
52
55
53
(Page 45)
CNS601
8P
R749
270
R652
10k
C623
0.001
R795
150
R801
220
GC DGND
VCC-CPU
56
S749
S00
54
SI0
53
INT1
52
INT0
51
MD2
49
MD0
(FOR CHECK)
NO603
6P
DISC 3 LED
AA1
DISC 2 LED
AA2
DISC 1 LED
AA3
R788
10k
GC DGND
R790
22k
R791
33k
R792
68k
JW619
JW620
+4V
KEY 2
R789
15k
S788
D793
SEL5923A
DISC 3
D792
SEL5923A
DISC 2
S789
S790
S791
S792
OPEN/CLOSE
JW621
JW622
D791
SEL5923A
DISC 1
DISC 1
DISC 2
DISC 3
EX-CHANGE
DISC SKIP
R800
150
R799
150
Q793
BA1A4M
LED DRIVE
AA1
R798
150
Q792
BA1A4M
LED DRIVE
AA2
Q791
BA1A4M
LED DRIVE
AA3
Tensões e formas de onda são dados em DC em relação ao terra
em condição de ausência de sinal.
sem indicação : TUNER (FM/AM)
43
43
MHC-RG77
7-23. PLACAS DE CIRCUITO IMPRESSO - PLACA PAD SWITCH/VOL
(Page 42)
PAD SWITCH
BOARD
P
PANEL BOARD
NO604
VOL BOARD
DIMMER
1
DISPLAY
1
8
3
DIRECTION
EDIT
FM MODE
REPEAT
TUNER MEMORY
PLAY MODE
IC603
1
3
1
S748
(ROTARY ENCODER)
SPECTRUM
MUSIC EQ
MOVIE EQ
2
4
VOLUME
ENTER
1
EFFECT
ON/OFF
GROOVE
SURROUND
4
1-683-536-
11
(11)
S750, 752,
S754 − 762,
S765 − 778
P FILE
GAME EQ
−
+
44
44
11
1-683-535-
(11)
MHC-RG77
7-24. DIAGRAMA ESQUEMÁTICO - PLACA PAD SWITCH/VOL
S748
(ROTARY ENCODER)
NO605
8P
VOLUME
CN606
4P
VOL 1A
KEY 0
KEY 1
VOL 1B
VOL 1B
VOL 1A
GC DGND
KEY INT DISPLAY
R765
470
DGND
(Page 43)
R766
680
R767
1k
R768
1.5k
R769
1.5k
R770
2.2k
R771
3.3k
R772
4.7k
R773
6.8k
R774
10k
R775
15k
R776
22k
R777
33k
R778
68k
KEY 1
CN607
4P
VOL 1A
VOL 1B
GC DGND
KEY 1
C751
0.1
C752
0.1
R750
270
EVER +4V
SIRCS
D613
1SS133T
-72
R625
47
S750
S765
DISPLAY
S766
S765
DIMMER
C615
47
10V
S767
S768
S769
S767
FM MODE
EDIT
TP682
REMOTE CONTROL
RECEIVER
S752
P FILE
R753
1k
S754
S774
S774
S775
S775
EFFECT
S776
S777
S778
S776
S778
ENTER
SURROUND
ON/OFF
MUSIC EQ
R754
1.5k
S773
S773
S771
S770
SPECTRUM
R752
680
S772
PLAY MODE
S768
DIRECTION
S771
GROOVE
TUNER MEMORY
REPEAT
S766
C614
0.001
S770
S769
R755
1.5k
R756
2.2k
S755
S756
S772
S777
GAME EQ
MOVIE EQ
R757
3.3k
S757
R758
4.7k
S758
-
R759
6.8k
S759
R760
10k
S760
R761
15k
S761
R762
22k
S762
+
IC603
NJL74H400A
Tensões estão em DC em relação ao terra,
em condição de ausência de sinal.
sem indicação : TUNER (FM/AM)
45
45
MHC-RG77
7-25. PLACAS DE CIRCUITO IMPRESSO - SEÇÃO MAIN-TRANS / SUB-TRANS
1
2
3
4
5
6
7
MAIN TRANS BOARD
A
(E)
B
(MX)
11
(E)
4
(E, AR)
M
POWER
BOARD
NO501
(AR)
C
(Page 40)
∗
1
(E)
∗ NOT REPLACEABLE:
BUILT IN TRANSFORMER
1
T910
MAIN POWER
TRANSFORMER
D
11
1-683-539-
SUB-TRANS BOARD
S901
VOLTAGE SELECTOR
E
(E, AR)
120V
220V
230 − 240V
(E)
1
(E)
F
T972
SUB POWER
TRANSFORMER
(MX)
(AR)
(MX, AR)
1
Localização dos
Semicondutores
E
4
2
Ref. No.
Location
D971
D972
D973
D974
D975
D977
G-4
F-2
F-2
E-2
E-2
C-7
IC971
G-2
Q971
G-3
G
3
IC971
3
1
11
1-683-540-
N
H
POWER BOARD
NO504
2
1
(Page 40)
AC IN
46
46
(11)
(11)
MHC-RG77
7-26. DIAGRAMA ESQUEMÁTICO – PLACA MAIN TRANS/SUB-TRANS –
F971
T6.3AL
250V
F976
∗
JW971
JW975
(MX)
F977
∗
(AR)
T910
CN973
JW974
MAIN POWER
TRANSFORMER
F974
CN997
13P
∗
VH
TP1
VH
TP2
GND
TP3
GND
TP4
VL
TP5
VL
TP6
AC3
TP7
AC3
TP8
AC4
TP9
120
220
JW972
230-240
F975
∗
JW973
N
(EXCEPT MX,AR)
R951
0.1
(GX8000)
(Page 41)
AC4
TP10
VP
TP11
VF
TP12
R952
0.15
R944
R954
3.3M
1/2W
C941
100
63V
JW954
VF
D977
11ES2
R941
1
TP13
∗ NOT REPLACEABLE:
BUILT IN TRANSFORMER
R953
NO971
JW993
S901
120
120
220
220
VOLTAGE SELECTOR
-1
230-240
N
220V
220
C977
0.1
POWER ON/OFF
STBY RELAY
EVER+4V
RELAY DRIVE
D973
11ES2
D972
11ES2
JW984
T972
SUB POWER
R974
100k
-2
230-240
Q971
2SC2785
CN976
3P
TRANSFORMER
(EXCEPT E,SP,MX)
CN974
2P
JW990
(EXCEPT MX)
D-GND
+4V REGULATOR
IC971
µPC3504AHF
(Page 41)
O
D975
11ES2
D974
11ES2
AC IN
JW986
C971
10000p
250V
(MX)
I
G
JW987
C978
0.1
RY971
230-240V
120
R975
10k
120V
C973
100
16V
D976
C975
2200
16V
C976
0.1
47
47
D971
1SS133T
• As tensões estão em DC em relação ao terra, em
condição de ausência de sinal.
sem indicação : TUNER (FM/AM)
MHC-RG77
• Diagrama em Bloco dos IC's
– Placa BD–
43 42 41
A
INTERNAL BUS
DIGITAL
OUT
LRCK 61
D/A
INTERFACE
PCMD 62
ERROR
CORRECTOR
DIGITAL
PLL
16K
RAM
ASYMMETRY
CORRECTOR
D
28 RFDCO
CONTROL LOGIC
DVC
DVC
VCC
VC
–
+
DVC
A/D
CONVERTER
BCK 63
–
+
C
OPERATIONAL
AMPLIFIER
ANALOG SWITCH
EFM
DEMODULATOR
–
+
B
40 SE
39 FE
38 VC
TSD
30 DC OFST
29 RFDCI
VC
RW/ROM
VOFST
27 VC
1
2
3
4
5
6
7
8
9
RIN
44
GND
46 45
FIN
RFDC
CE
TE
47
VCC
ADIO
51 50 49 48
VM
AVSS0
52
RW/ROM
OUT1
AVDD0
IGEN
56 55 54 53
BA6956AN
RNF
RFAC
BIAS
ASYI
ASYO
59 58 57
IC701
OUT2
AVSS3
60
CXA2581N-T4
VREF
PCO
FILI
FILO
CLTV
IC103
VDD
VSS
AVDD3
CXD3017Q
DOUT
IC101
– Placa Driver –
EMPH 64
VC
XVDD 65
XTAI
XTAO
XVSS
AVDD1
AOUT1
AIN1
LD
66
67
68
69
70
71
EQ
TIMING
LOGIC
CLOCK
GENERATOR
SERVO DSP
LOUT1 72
LOUT2 75
SUBCODE
PROCESSOR
PWM
PWM
AVSS1 73
AVSS2 74
RMUT 79
LMUT 80
FOCUS
SERVO
FOCUS PWM
GENERATOR
TRACKING
SERVO
TRACKING
PWM GENERATOR
SLED
SERVO
SLED PWM
GENERATOR
SERVO
INTERFACE
OVER SAMPLING
DIGITAL FILTER
AIN2 76
PWM GENERATOR
PD
37 XTSL
36 TES1
35 TEST
34 VSS
33
32
31
30
29
28
2
APC AMP
26 MDP
25 LOCK
MIRR, DFCT,
FOK
DETECTOR
24 FOK
23 DFCT
22 MIRR
SERVO AUTO
SEQUENCER
SERIAL IN
INTERFACE
EQ IN
3
RW/ROM
AC SUM
GND
RFAC
SUMMING
AMP
4
5
A
A
B
C
D
B
C
A
B
C D
VOFST
–
+
RFAC
VCA
23 RFG
VCC
22 VCC
20 CE
D
SQSO
SQCK
XRST
SYSM
DATA
XLAT
CLOK
SENS
SCLK
VDD
ATSK
C2PO
SCOR
9 10 11 12 13 14 15 16 17 18 19 20
WFCK
XUGF
XPCK
GFS
5 6 7 8
SPOA
SPOB
XLON
4
GM
F 11
GM
SW 12
APC-OFF
(Hi-Z)
RW/ROM
(H/L)
BA5974FM-E2
PRFVCC
CH4BIN
CH4SIN'
CH4SIN
CH3FIN
CH3RIN
CAPAIN3
GND
MUTE
POWVCC
CH3OUTR
CH3OUTF
CH4OUTR
CH4OUTF
DVC 14
28
27
26
25
24
23
22
21
20
19
18
17
16
15
18 TE
RW/ROM
RW/ROM
F
RW/ROM
MUTE
F
LEVEL SHIFT
THERMAL
SHUTDOWN
INTERFACE
F
R
F
R
INTERFACE
1
2
3
4
5
6
7
8
9
10
11
12
13
14
CH1RIN
CAPAIN1
CH2FIN
CH2RIN
CAPAIN2
GND
VREFIN
POWVCC
CH2OUTR
CH2OUTF
CH1OUTR
CH1OUTF
R
CH1FIN
R
VREFOUT
F
–
+
DVC
INTERFACE
F
A
17 FEI
VOFST
–
+
VC
R
R
D
C
RFAC 15
48
48
R01
2
REFERENCE
CURRENT
LINE NF
3
LINE IN
4
–
+
RESET
BAND
PASS
FILTER
REC NF
5
REC IN
6
RESET C
BIAS C
GND
7
8
9
–
+
18 RESET
17
16
15
14
13
12
F01
F02
F03
F04
F05
F06
11 REC LEVEL
10 VCC
–
+
B
IC102
REFERENCE
CURRENT
19 TE BAL
DVCC 13
DVC
1
DET
RW/ROM
VC
3
R02
VC
RW/ROM
21 COUT
1 2
BA3830F-E2
21 CEI
–
+
DVC
A
B
C
D
6
7
8
9
E 10
CPU
INTERFACE
– Placa Painel –
IC602
FRDR
FFDR
TRDR
TFDR
SRDR
SFDR
DIGITAL
CLV
26 RFC
25 VFC
24 BST
EQ ON/OFF
27 SSTP
3rd ORDER
NOISE SHAPER
AOUT2 77
AVDD2 78
1
16 FE
MHC-RG77
7-27.
DESCRIÇÃO DOS PINOS DOS IC's
• PLACA PRINCIPAL IC501 M30620MCN-A00FP (SYSTEM CONTROLLER (CD MECHANISM CONTROL))
Pin No.
Pin Name
I/O
Description
1
NO-USE
—
2
STEREO
I
FM stereo detection signal input from the tuner unit “L”: stereo
3
TUNED
I
Tuning detection signal input from the tuner unit “L”: tuned
4
SIRCS
I
Remote control signal input
5 to 7
SUR1 to SUR3
O
Surround signal processor control signal output terminal Not used
8, 9
GND
—
Ground terminal
10
XC-IN
I
Sub system clock input terminal (32.768 kHz)
11
XC-OUT
O
Sub system clock output terminal (32.768 kHz)
12
RESET
I
System reset signal input from the reset signal generator “L”: reset
For several hundreds msec. after the power supply rises, “L” is input, then it changes to “H”
13
X-OUT
O
Main system clock output terminal (16 MHz)
14
VSS
—
Ground terminal
15
X-IN
I
16
VCC
—
Not used
Main system clock input terminal (16 MHz)
Power supply terminal (+3.3V)
17
NMI
I
18
NO-USE
—
19
SCOR
I
Subcode sync (S0+S1) detection signal input from the digital signal processor
20
AC-CUT
I
AC off detection signal input from the reset signal generator “L”: AC cut checked
21
ST-MUTE
O
Tuner muting on/off control signal output “H”: muting on
22
ST-CE
O
PLL chip enable signal output to the tuner unit
23
ST-DOUT
O
PLL serial data output to the tuner unit
24
PWM3
O
RFDC PWM signal output to the RF amplifier (for CD-RW)
25
ST-DIN
I
PLL serial data input from the tuner unit
26
PWM2
O
PWM signal output to the RF amplifier (for CD-RW)
27
ST-CLK
O
PLL serial data transfer clock signal output to the tuner unit
28
PWM1
O
Focus servo drive PWM signal output to the RF amplifier (for CD-RW)
29
IIC-CLK
I/O
Communication data reading clock signal input or transfer clock signal output with the fluorescent
indicator tube driver
30
IIC-DATA
I/O
Communication data bus with the fluorescent indicator tube driver
31
Not used
Non-maskable interrupt input terminal
Not used
TXD1
—
32
SQ-DATA
I
Subcode Q data input from the digital signal processor
33
SQ-CLK
O
Subcode Q data reading clock signal output to the digital signal processor
34
SENS
I
Internal status detection monitor input from the digital signal processor
35
CD-DATA
O
Serial data output to the digital signal processor
36
XLT
O
Serial data latch pulse output to the digital signal processor
37
CD-CLK
O
Serial data transfer clock signal output to the digital signal processor
38
CD-POWER
O
Power on/off control signal output for the CD section “H”: power on
39
CLOCK-OUT
O
Clock (32.768 kHz) signal output terminal (for test mode)
40
LD ON
O
Laser diode on/off control signal output to the RF amplifier “L”: laser diode on
41
GC RESET
I
Reset signal output to the fluorescent indicator tube driver “L”: reset
42
NO-USE
—
Not used
43
XRST
O
Reset signal output to the digital signal processor and motor/coil driver “L”: reset
44
LOAD-IN
O
Turn motor drive signal output
45
LOAD-OUT
O
Turn motor drive signal output
46
OPEN-SW
I
Disc tray open detection signal input terminal “L”: disc tray open
47
CLOSE-SW
I
Disc tray close detection signal input terminal “L”: disc tray close
49
MHC-RG77
Pin No.
Pin Name
I/O
48
BU UP/DOWN-SW
I
Optical pick-up up/down detection signal input terminal
49
TBL-SENS
I
Disc tray status detection signal input
50
CD-MUTE
O
CD analog signal muting on/off control signal output “H”: muting on
51
A-TRG
O
Deck-A side trigger plunger drive signal output “H”: plunger on
52
B-TRG
O
Deck-B side trigger plunger drive signal output “H”: plunger on
53
AMS-IN
I
Whether a music is present or not from the automatic music sensor circuit
“L”: music is present, “H”: music is not present
54
CAPM-H/L
O
High/normal speed selection signal output “L”: high speed, “H”: normal speed
55
CAPM-CNT1
O
Capstan motor drive signal output
56
A-PLAY
I
Deck-A play detection signal input terminal “H”: deck-A play
Deck-B play detection signal input terminal “H”: deck-B play
50
Description
57
B-PLAY
I
58
TC-MUTE
O
Line muting on/off control signal output to the automatic music sensor circuit “H”: muting on
59
SW-ON-LED
O
LED drive signal output terminal “H”: LED on Not used
60
SW-MATRIXSURR-2-LED
O
LED drive signal output terminal “H”: LED on Not used
61
REC-MUTE
O
Recording muting on/off control signal output “L”: muting on
62
VCC
—
Power supply terminal (+3.3V)
63
SOFT-TEST
O
Output terminal for the software test
64
VSS
—
Ground terminal
65
BIAS
O
Recording bias on/off control signal output “H”: bias on
66
EQ-H/N
O
Normal/high speed selection signal output “L”: normal speed, “H”: high speed
67
PB-A/B
O
Deck-A/B selection signal output “L”: deck-B, “H”: deck-A
68
ALC
O
Automatic limiter control signal output “H”: limiter on
69
TC-RELAY
O
Recording/playback selection signal output “L”: playback, “H”: recording
70
A-HALF
I
Deck-A cassette detection signal input terminal “L”: no cassette, “H”: cassette in
71
SW-LINK-LED
O
LED drive signal output terminal “H”: LED on Not used
72
SW-MATRIXSURR-1-LED
O
LED drive signal output terminal “H”: LED on Not used
73
DISPLAY-KEY
I
DISPLAY key input terminal
74
POWER-KEY
I
I/1 key input terminal
75
STBY-LED
O
LED drive signal output of the I/1 indicator “H”: LED on
76
AUDIO-OUT
GAME/VCD
O
Video out game/video CD selection signal output terminal “L”: video CD, “H”: game
Not used
77
AUDIO-OUT
ON/OFF
O
Audio out on/off control signal output terminal “H”: audio out on Not used
78
HP MUTE
O
Headphone muting on/off control signal output “L”: muting on
79
HP-DETECT
I
Connection detection signal input of the headphone jack
“L”: no connected, “H”: headphone connected
80
LINE-MUTE
O
Line muting on/off control signal output “H”: muting on
81
GEQ DATA
O
Serial data output to the audio signal processor
82
GEQ CLK
O
Serial data transfer clock signal output to the audio signal processor
83
STK-MUTE
O
Power amplifier on/off control signal output “L”: standby mode, “H”: power amplifier on
84
STBY-RELAY
O
Main power on/off control signal output “H”: power on
85
NO-USE
—
Not used
86
LINK-RELAY
O
Relay drive signal output for the surround speaker protect “H”: relay on Not used
87
FRONT-RELAY
O
Relay drive signal output for the front speaker protect “H”: relay on
88
PROTECTOR
I
Protect on/off detection signal input from the speaker protect circuit “L”: protect on
MHC-RG77
Pin No.
Pin Name
I/O
Description
89
A-SHUT
I
Shut off detection signal input from the deck-A side reel pulse detector
90
B-SHUT
I
Shut off detection signal input from the deck-B side reel pulse detector
91
B-HALF
I
Deck-B cassette detection signal input terminal “L”: cassette in, “H”: no cassette
92
MODEL-IN
I
Model setting terminal
93
DEST-IN
I
Destination setting terminal
94
SW-AD-KEY
I
Key input terminal (A/D input)
95
NO-USE
—
Not used
96
AVSS
—
Ground terminal (for analog system)
97
SW-RELAY
O
Relay drive signal output for the sub woofer out protect “H”: relay on
98
VREF
I
Reference voltage (+3.3V) input terminal (for analog system)
99
AVCC
—
Power supply terminal (+3.3V) (for analog system)
100
NO-USE
—
Not used
Not used
Not used
51
MHC-RG77
• PLACA PAINEL IC601 MB90M407PF-G-114-BND (FLUORESCENT INDICATOR TUBE DRIVER, KEY CONTROL)
Pin No.
Pin Name
I/O
Description
1 to 10
P1 to P10
O
Segment drive signal output to the fluorescent indicator tube
11
VSS-IO
—
Ground terminal (for I/O port)
12 to 22
P11 to P21
O
Segment drive signal output to the fluorescent indicator tube
23
VDD-FIP
—
Power supply terminal (+3.3V) (for fluorescent indicator tube)
24 to 41
P22 to P39
O
Segment drive signal output to the fluorescent indicator tube
42
VSS-IO
—
Ground terminal (for I/O port)
43, 44
P40, P41
O
Segment drive signal output to the fluorescent indicator tube
45 to 47
NO-USE
—
Not used
48
VKK
—
49 to 51
MD0 to MD2
I
Setting terminal for the CPU operational mode
52
LED-TAPE
O
LED drive signal output of the TAPE A/B “H”: LED on
Power supply terminal (–33V) (for fluorescent indicator tube)
53
LED-TUNER
O
LED drive signal output of the TUNER/BAND “H”: LED on
54
LED-MD-VIDEO
O
LED drive signal output of the MD (VIDEO) “H”: LED on
55
LED-CD
O
LED drive signal output of the CD “H”: LED on
56
LED-GAME
O
LED drive signal output of the GAME “H”: LED on
57
LED-DISC1
O
LED drive signal output of the DISC1 “H”: LED on
58
LED-DISC2
O
LED drive signal output of the DISC2 “H”: LED on
59
LED-DISC3
O
LED drive signal output of the DISC3 “H”: LED on
60
I2C-DATA
I/O
Communication data bus with the system controller
61
I2C-CLOCK
I/O
Communication data reading clock signal input or transfer clock signal output with the system
controller
62
AVCC
—
Power supply terminal (+3.3V) (for A/D conversion)
63
AVSS
—
Ground terminal (for A/D conversion)
64 to 66
KEY0 to KEY2
I
Key input terminal (A/D input)
67 to 72
BPF0 to BPF5
I
Spectrum analyzer drive signal input from the spectrum analyzer band-pass filter
73
ALL-BAND
I
Spectrum analyzer drive signal input from the spectrum analyzer band-pass filter
74
LED-REC
O
LED drive signal output of the REC PAUSE/START “H”: LED on
75, 76
NO-USE
—
Not used
77
RESET
I
System reset signal input from the system controller “L”: reset
78
SOFT-TEST
O
Output terminal for the software test
79
VOLUME-B
I
Jog dial pulse input from the rotary encoder (B phase input)
80
VOLUME-A
I
Jog dial pulse input from the rotary encoder (A phase input)
81
VSS-CPU
—
Ground terminal (for CPU)
82
X0
O
System clock output terminal (4 MHz)
System clock input terminal (4 MHz)
83
X1
I
84
VCC-CPU
—
Power supply terminal (+3.3V) (for CPU)
85
NO-USE
—
Not used
86 to 100
1G to 15G
O
Grid drive signal output to the fluorescent indicator tube
52
SS-RS88
MANUAL DE SERVIÇO
Brazilian Model
Foto: SS-RS88
ESPECIFICAÇÕES
Caixa acústica Surround SS-RS88 para
MHC-RG77
Sistema
2 vias, 2 unidades,
tipo bass-reflex
Unidades de Alto-Falantes
Woofer
13 cm, tipo cone
Tweeter
5 cm, tipo cone
Impedância Nominal
24 ohms
Dimensões (LxAxP)
Aprox. 175 x 360 x 260mm
Aprox. 3,4 kg cada caixa
Peso
CAIXA ACÚSTICA
SS-RS88
Ver 1.2 2003. 05
VISTAS EXPLODIDAS
NOTA:
• -XX e -X indicam peça padrão que pode apre­
sentar diferenças quando comparadas às pe­
ças originais do aparelho.
• Indicação de cor na aparência das peças.
Exemplo:
KNOB, BALANCE (WHITE) . . . (RED)
↑
↑
Cor da Peça Cor do gabinete
• Itens com a marca“*” não são mantidos em
estoque por serem raramente solicitados. Somente os substitua por peças numerica­
mente identificadas nesse manual.
• O condensador instalado na caixa
acústica não é fornecido.
1. SS-RS88
56
SP5
53
52
#1
SP4
não fornecido
CAIXA ACÚSTICA MONTADA
LADOS DIREITO / ESQUERDO
6-800-426-00
Ref. No.
52
53
56
Part No.
Description
4-942-029-01 PACKING
4-237-703-02 PAINEL FRONTAL
4-986-971-01 SCREW (3.5)
Remark
Ref. No.
#1
SP4
SP5
Part No.
Description
7-685-661-79 SCREW +BVTP 4X12 TYPE2 N-S
1-544-983-11 ALTO FALANTE 13CM
1-544-977-11 ALTO FALANTE 5 CM
Remark