Download SERVICE MANUAL

XR-5W497RB
SERVICE MANUAL
AEP Model
Dolby noise reduction manufactured under license from Dolby Laboratories Licensing Corporation.
“DOLBY” and the double-D symbol a are trademarks of Dolby
Laboratories Licensing Corporation.
Notes on Chip Component Replacement
• Never reuse a disconnected chip component.
• Notice that the minus side of a tantalum capacitor may be
damaged by heat.
FM/AM CASSETTE CAR STEREO
MICROFILM
–1–
XR-5W497RB
3-2. BLOCK DIAGRAM — TAPE SECTION —
TUNER
SECTION
TAPE L
SUB SYSTEM CONTROL
IC201 (2/2)
EQ AMP/DOLBY NR
IC401
R/F
18
70U/120U
17
ON/OFF
14
48
FWD
EQ
AMP
R-CH
A
DOLBY
NR
34 F/R
27 METAL
35 DOLBY
OSC 1 8
37
XI 11
AUTO
MUSIC
SENSOR
X201
8MHz
OSC 2 9
MS
21
X202
32.768kHz
XO 12
36 AMS
46
R-CH
REV
43
R-CH
TAPE
MECHANISM
INSERT
S-CLK
S-DATA
C-REQ
RESET
28 AMS GAIN
33 MUTE
E2D 70
E2CK 68
41
RV431
DOLBY
LEVEL
L-CH
BATT
POWER
CONTROL
Q231,232
TU +B
8.5V REG
Q233
TU 8.5V
ISO701 (3/5)
CDC-CTL 42
37
30
31
32
26
POWER
CONTROL
Q450,451
TA 5V
INSERT
SCL
SDA
CRQ
RESET
INDICATOR 25
BATT
LED
DRIVE
Q81
D81
BATT
POWER
SWITCH
Q911,912
16
17
CDC +B
CDC-CLT
BATT
5V REG
Q452
29 TAPE ON
– 11 –
DATA
CLK
TA +B
TA 5V
TA +B
04
5
6
TUNER ON 19
1
4
5
6
8
Signal path
: PB
EEP ROM
IC241
CDC
CN451
SW+B 3
SW5V 7
MS-GV 19
RADIO/TAPE 16
D OUT 41
CDC DATA
OUT
Q702
14
D IN 40
CDC DATA
IN
Q703
13
CLK 39
CDC CLK
IN
Q704
15
– 12 –
CDC DOUT
CDC DIN
CDC CLK
XR-5W497RB
2-3. BLOCK DIAGRAM — TUNER SECTION —
ISO701 (1/5)
11
SREMOTE
Q705
S-REMOTE
IC561
19
CDC-L
12
8
20
R-CH
CDC-R
7
3
2
TEL (+)
TEL (–)
12
1
TAPE
SECTION
A
IC521
TAPE L
SOURCE SELECT
IC531
TUNER UNIT
TU101
15
12
11
14
IC581
AM ANT
L CH 18
2
FM ANT
R CH 16
3
1
AUDIO L
13
D252
9 10
BATT H
CHECK
Q253
SOURCE SELECT
IC511
3 AM NOISE
CANCEL
16
IC141
5
1
3
9
8
FM +B
TU 8.5V
9
+B
AM 8.5V
10 AM +B
ANT OPEN 57
ANT OPEN
DET
Q131-134
ANT OPEN 58
ANT SHORT
DET
Q135
BATT
7
Q140
FM 8.5V
B
R-CH
Q571
AM DET 12
AM IF 14
SYSTEM CONTROL
IC801 (1/2)
POWER
CONTROL
Q801,802
BATT L
CHECK
D251Q251,252
S-REMOTE 16
Q254
69
70
73
72
R-CH
2 4
35
F701
+B
BATT
MAIN 1
MAIN 2
SUB 2
SUB 1
DET 99
SAFE
1
DSP
SECTION
AUSEL
J101
(ANTENNA)
VDD B
VDD A
5V REG
Q803
BATT
Q815
SAFE
CONTROL
Q861-863
1
33
SAFE DET
2
IC841
SAFE
HOLD 98
VDD B
SUB SYSTEM CONTROL
IC201 (1/2)
SEEK 13
S-METER 19
RV171
S-METER
22
9
13
14
17
16
11
8
12
11
DX/LO 4
WID/NAR 15
WID/NAR
CONTROL
Q151,152
CE
DO
CLK
DI
65
74
66
68
67
GALA 15
S-CONTACT 53
12 XO
X210
4.332MHz
13 XI
SYNC
ID
DO
CL
DI
CE
SYR
18
19
20
21
22
23
24
52
51
50
62
63
61
64
SYNC
ID
D IN
CLK
D OUT
CE
SYR
54 NOISE DET
TU +B
8.5V REG
Q130
VT +B
POWER
CONTROL
Q136,137
ANT +B
1
04
APS
5
IC303
BATT
29
GALA
32
S-CONTACT
ISO701 (2/5)
C
AOUT 18
XT 47
35
PWN
D0-3
DSP
SECTION
ILL DUTY
LED
DRIVE
Q31,32
X301
4.195MHz
XT 48
TIR DEMOD
IC302
D0-3
RESET
WR
RD
CE
66
80
1
79
4
53
54
55
56
SAS
TAS
RESET
SADX
WR
CSI
RD
D IN/OUT
CE
26
LIN
72 FM MS
36
37
39
40
44
WE 46
RWCK 50
22
18
23
17
15
11
16
2
SAS
TAS
SAD
CS
DOUT
DIN
WE
RWCK
D31-51, 53-56
(KEY BACK LIGHT)
Signal path
: FM
: AM
: CD
24 ANT ON
– 13 –
ILLUMI
Q906
TIM CONTROL
IC301
Q181
67 NOISE ON
34
ILLMI
DET
Q901
SCONTACT
Q714
3-6
5
AM 8.5V
NOISE
DET 1
IC181
Q902
POWER
CONTROL
Q825,826
GALA
Q703
PDWN 65
POWER
CONTROL
Q103
K-LINE
SECURITY
TX
Q827-829
BATT
82 GALA
18 S-CONTACT
1-4
2 MPX
WAKU-UP
BUSY
CLK
D-OUT
D-IN
ILL DUTY 26
RDS MODULATOR
IC210
FM DET 23
31
TX
4
MODE 88
17
43
44
45
46
77 WID/NAR 1
78 WID/NAR 2
Q161
FM 8.5V
73
75
74
76
TX 38
VDD C
RDS
FORCED
24
WID/NAR
CE 2
AOUT
MONO/STE D IN 3
CLK 4
AM IF
D OUT 5
FM IF
FM OSC
XOUT 1
AM OSC
DX/ILO
X IN 24
WID/NAR
X120
FM ON
7.2MHz
AM ON
RX
1
6
31 VDD P-ON
POWER
CONTROL
Q804,805
VDD A
WAKU-UP
BUSY
CLK
D-IN
D-OUT
RX 37
D812
VDD D
57 S-METER (FM) VDD 18
P-ON
55 MULTI PATH
38 SD
PLL
IC211
VT 5
ST-IND 22
AM IFC 11
FM IFC 21
VCO 6
POWER
CONTROL
Q101
S-METER
CONTROL
Q171,172
POWER
CONTROL
Q236,237
TEL-MUTE
K-LINE
IC821
KLINE/TEL 19
17 B/U CHECK
15 RESET
VDD A
69 SEEK
56 S-METER (AM)
SD 20
TU8.5V
D802
23 TU MUTE B/U DOWN 16
RESET 14
30
TEL MUTE
DET
Q785,786
TEL MUTE 39
K-LINE
MUTE
CONTROL
Q573,574
RESET
2
1
IC802
– 14 –
XR-5W497RB
2-4. BLOCK DIAGRAM — DSP SECTION —
ELECTRONIC VOLUME
IC605
AUDIO DSP
IC603
LINE
AMP
IC602
1
7
92
93
36
30
29
35
ADC
DAC
DRDY
WRQ
CS
WRDY
FL
3
84
LPF
1
IC604
20
15
VOL
DATA
CE
CLK
2
3 AMP 1
2 IC721
Q711
Q973
ISO701 (4/5)
25
FL (+)
24
FL (–)
4
6
1
8 7 9
DSP
11 MODE
R-CH
DIAG 12
DAC
PD
RESET
81
SPEAKER
34 37 33
26
8 7 9
27
11 MODE
DATA
CE
CLK
5 6
RL
3
X601
16.9344MHz
LPF
1
IC606
20
15
VOL
3 AMP 1
2 IC771
Q975
AMP MODE
CONTROL
Q960-964
Q761
MUTE
CONTROL
Q781,782
SYSTEM CONTROL
IC801 (2/2)
C
ILL DUTY
LED
CONTROL
Q905
LED
DRIVE
Q21,22
DAR
CLK
CE
DAF
AUDIO MUTE
BEEP DA
AMP DIAG
AMP MODE
SP RL OPEN
SP(R) SHORT
SP(F) SHORT
SCLK
DIN
DOUT
RST
PD
WRDY
CS
WRQ
DRDY
89
92
93
20
86
21
ILLUMI ON
ROT A
ROT B
ON-KEY
TP-KEY
TIM/EJ
DSP
48
46
47
51
35
45
44
50
49
S3
S2
TP
SET
TIM
IC941
R-CH
1
ENI 22
3
IC921
1
DIAG
DET
Q921
DIAGNOSTIC
DETECT
IC301,302
Q706
Q701
BATT
R-CH
POWER
CONTROL
Q810,811
R-CH
D815
ISO701 (5/5)
8
CLK
9
2ND
DOUT
DISPLAY
10
CE
4
FL
3
FR
1
LINE OUT
RL
2
RR
6 AMP-REM
D816
BATT
EXT AMP
CHECK
Q816
1
9V REG 2
IC811
4
S9V
5V REG
Q808
P-ON 32
+B DET
D819
+B-AD 25
(EJECT)
Q705
Q707
EXAMP ON 80
S1
21
RR (+)
22
RR (–)
DIAG
DET
Q941
Q821
CLK 43
DO 42
ENO 41
EXAMP NG 76
D20-29
(LCD BACKLIGHT)
3
SP FL OPEN 27
85 TIM-KEY
84 EJ-KEY
RE1
(ON)
(ROTARY ENCODER)
POWER AMP
IC902
DIAG
CONTROL
Q971,972
56
34
78
81
29
64
61
SP(R) CLIP 63
SP(F) CLIP 60
2ND DISPLAY
52
53
55
54
27
RL (+)
28
RL (–)
4
6
1
ELECTRONIC VOLUME
IC606
TUNER
SECTION
23
FR (+)
24
FR (–)
DIAG 12
BATT
BATT
POWER
CONTROL
Q806,807
S5V
AUD +B
SEG
7-65
SEG
1-6
LCD DRIVER
IC1
KEY-REQ
LCD OFF
STB
DATA
SCK
16
14
19
18
17
1
5
6
7
8
KEY-REQ
LCD ON
CE
DATA
CLK
X2 10
LCD1
LCD1
LIQUID CRYSTAL
DISPLAY PANEL
COM
0-7
32-90
93-100
AUDIO ON 79
26-31
TUNER
SECTION
AUDIO L
SI
SO
SCLK
B
POWER AMP
IC901
X1 11
Signal path
: FM
X801
4.915MHz
KEY 1-4
22-25
04
KEY-IN
MATRIX
S4-25, 27
– 15 –
– 16 –
• IC Block Diagrams
HPF1
DETECTOR
LPF
13
VCC
12
11
10 9
OR
IF AGC
IF
AMP
WF
AFOUT
14
GATE
IFDET
15
VTH
AFAGC
16
VCC
IF-IN
IC141 HA12181FP
PULSE
DETECTOR
AF
AMP
LPF
REFERENCE
CURRENT
CIRCUIT
AF
AGC
NOISE
AGC
PULSE
DETECT
1
GATE PULSE
GENERATOR
HPF
PULSE
DETECT
2
GATE PULSE 1
GATE PULSE 2
SW2
PHASE
CURRENT
HIGH PASS AMP
(WAVEFORM COMP.)
LEVEL
DIFFERENCE
DETECTION
SW3
BUFFER
AMP
SW4
SW1
1
2
3 4
5
GND
6 7 8
BIAS1
AF-IN
BIAS2
PHASE
HOLD
GND
HP
REFERENCE
CURRENT CIRCUIT
(WAVEFORM COMP.)
IFAGC
REFERENCE
VOLTAGE
CIRCUIT
SW5
IC531 MC14052B
IC210 LC72720M
VREF
1
MPXIN
2
VDDA
3
ANTIALIASING
FILTER
24 SYR
REFRENCE
VOLTAGE
VSSA
4
57KHz
BPF
(SCF)
RAM
(24 BLOCK DATA)
23 CE
22 DI
21 CL
CCB
16 VDD
2X0
1
2X2
2
2XCOM
3
14 X1
2X3
4
13 XCOM
15 X2
12 X0
2X1 5
INH
6
11 X3
VEE
7
10 A
VSS
8
9
B
VS
K
GND
DRIVER
18 SYNC
17 T7
16 T6
15 VSSD
CLK(4.332MHz)
SYNC
DETECT-1
5
SYNC
DETECT-2
14 VDDD
13 XIN
1.75V
– 46 –
1
2
3
4
TX
XOUT 12
SYNC/EC CONTROLLER
TEST
OSC/DIVIDER
6
+
–
ERROR CORRECTION
(SOFT DECISION)
7
VCC
T1 7
T2 8
T3 9
T4 10
T5 11
8
19 RDS-ID
+
–
–
DATA
DECODER
VREF
LI
CLOCK
RECOVERY
(1187.5Hz)
LO
PLL
(57KHz)
DRIVER
6
IC821 L9637D
RX
CIN
MEMORY CONTROL
+
–
5
DRIVER
FLOUT
+
20 DO
SMOOTHING
FILTER
IC121 LC72146M
XOUT
1
CE
2
DI
3
CLK
4
DO
5
REFERENCE
DIVIDER
CCB
I/F
24 XIN
23 VSS
22 AOUT
6
SWALLOW COUNTER
1/16,1/17 4BITS
7
21 AIN
WIDNARW
8
MONO STE
9
20 PD0
12BITS PROGRAMMABLE
DIVIDER
DATA SHIFT
REGISTER
LATCH
DX.LO 10
PHASE DETECTOR
CHARGE PGMP
19 PD1
18 VSS
AM.ON 11
FM.ON 12
17 FM.OSC
16 AM.OSC
POWER ON
RESET
15 VDD
14 FM.IF
UNIVERSAL
COUNTER
13 AM.IF
N.C
R-IN (–)
N.C
R-IN (+)
L-IN (+)
N.C
L-IN (–)
N.C
IC561 TA2050F
16
15
14
13
12
11
10
9
+
–
–
+
1
2
3
4
5
6
7
8
R-OUT
VREF
N.C
GND
N.C
VCC
N.C
L-OUT
V REF
– 47 –
IC241 S-24C04AFJA
DOUT
VCC
7
TEST
6
5
SCL
SDA
42
41
40
39
38
37
36
CS3
CS2
CS1
SADX
SADY
DATA OUTPUT
ACKNOWLEDGE
OUTPUT
CONTROL CIRCUIT
DIN
Y
DECODER
1
2
3
R/W
SELECTOR
X DECODER
A0
A1
A2
8
ADDRESS
COUNTER
LOAD
EEPROM
INC
DATA REGISTER
DEVICE ADDRESS COMP
COMPARATOR
LOAD
SERIAL
CLOCK
CONTROL
CIRCUIT
START/STOP
DETECTION CIRCUIT
GND
HIGH VOLTAGE
GENERATOR
4
MON
RWCK
DVDD
XT
XT
WE
DROM
DI/0
CS4
50 49 48 47
46
45 44
43
TIMING
CONTROLLER
MCU I/F
REGISTER
CONTROLLER
TAS
SAS
35 PDWN
34 TEST
33 TEST
STATUS
REGISTER
ACON 8
TEST 9
MCUM 10
ADDRESS
CONTROLLER
32 RSEL2
31 RSEL1
ADPCM
ANALYZER/
SYNTHESIZER
CE 11
TEST
CIRCUIT
30 DGND
29 AGND
SG
CIRCUIT
FOUT
AOUT
19 20 21 22 23 24
25
26
27
28
MIN
17 18
MOUT
16
LINE
15
ADIN
LPF
+
-
12BIT
ADC
+
-
12BIT
DAC
TEST
TEST 12
TEST 13
TEST 14
DATA
I/O
OSC
LOUT
BUSY 5
RPM 6
VPM 7
51
– 48 –
SG
SGC
1
2
3
4
56 55 54 53 52
FIN
AMON
DVDD
AVDD
D0
D1
D2
D3
CE
RD
WR
RESET
NAR
IC301 MSM6688GS-2K
TIMING
GENERATOR
ADDRESS
MULTIPLEXER
VCC
RS/A
24
RFSH
VCT 1
INAO 1
VRIN 1
OUT 1
N.C.
GND
VCT
VCC
20 19
18
17
16
15
14
13 12 11
–
+
8dB STEP
VOLUME
LATCH
CONTROL
LATCH
ROW ADDRESS
COUNTER
SAD
SAS
18
TAS
17
CS
16
WE
15
14
DOUT
RAI (L)
N.C
PB-OUT (L)
N.C
N.C
N.C
NR-DET (L)
N.C
40
39
38
37
36
35
34
33
32
31
FFI
RIP
41
MS-VREF
TAI (L)
42
30
29
DOLBY B NR (L)
T/R
EQ-OUT 43
28 NOI
EQ-OUT-M 44
27 MS-GND
120/70
26 MA-OUT
–
+
25 MSI
NFI (L) 45
24 MS-DET
DET
RIN (L) 46
23 MS-VCC
F/R
VREF (L) 47
22 VCC
FIN (L) 48
MS AMP
21 MS-OUT
–
20 D-GND
+
–
GND 50
+
LPF
19 MS-GV
FIN (R) 51
18 R/F
VREF (R) 52
17 70U/120U
F/R
RIN (R) 53
16 RADIO/TAPE
NFI (R) 54
15
+
120/70
EQ-OUT-M 55
T/R
EQ-OUT 56
6
7
8
BIAS
RAI (R)
N.C
PB-OUT (R)
N.C
N.C
9
10
11
– 49 –
12
13
14
ON/OFF
5
N.C
4
N.C
3
NR-DET (R)
2
N.C
1
TAI (R)
DOLBY B NR (R)
6
7
8
9 10
CLK
INIT
4 5
DATA
3
CE
2
VRIN 2
1
INAO 2
NC
1dB STEP
VOLUME
OUT 2
8dB STEP
VOLUME
+
–
IC401 HA12164
GND 49
VCT
BUFFER
ZC
DET
SHIFT
REGISTER
VCT 2
WRITE CLOCK
GENERATOR
23
22
INN 2
ROW ADDRESS
REGISTER
COLUMN ADDRESS
COUNTER
–
1dB STEP
VOLUME
REFRESH ADDRESS
COUNTER
INP 2
COLUMN DECODER
I/O CONTROL
VSS 13
ROW
DECODER
8,388,608DATA
REGISTER
TEST 9
TEST 10
DIN 11
NC 12
REFRESH TIMER
26
25
N.C
NC
TEST
TEST
1
2
3
4
5
N.C
TEST
RWCK
IC605, 607 CXA1846N
INP 1
INN 1
IC302 MSM6684JSDR1
A10
A9
A8
A13
A12
A11
A15
A14
A16
I06
I05
I04
I03
I02
I01
I00
I07
DVDD
DVSS
DZFSET
DVDD
DVSS
DVB
DVB
IC603 AK7712A
A10
A9
A8
A13
A12
A11
A15
A14
I07
I06
I05
I04
I03
I02
I01
I00
DZF2 76
77
78
79
80
81
DXF1
NC
AVB
A-OUT-R2
A-OUT-L2
A16
75 74 73 72 71 70 69 68 67 66 65 64 63 62 61 60 59 58 57 56 55 54 53 52 51
A7
DZF
AOUTR
AOUTL
SDATA
LRCK
VREFL DADC2 BCLK
MCLK
VREFH
NC 82
A6
A5
SDOUT3
A4
A3
A2
A1
A0
DSP
DZF
83
84
85
86
87
88
89
AOUTR
AOUTL
VREFL
SDOUT2
DRDY
RDY
SI
SCLK
AINRAINR+
AINLAINL+
SDATA
SDIN2
MCLK
MCLK
90
91
92
93
VCOM 94
VRADL 95
AVSS 96
AVDD 97
VRADH 98
DVDD
48
47
46
45
44
43
42
41
40
39
38
37
36
35
A7
34
33
32
31
30
29
RQ
CS
BCLK
LRCK
VREFH
AINRAINR+
AINLAINL+
DVSS
A6
A5
A4
A3
A2
A1
A0
WE
RASCE
CASRF
SO
DRDY
RDY
SI
SCLK
DVDD
DVSS
WRQ
CS
ADC
BCLK
VREFL
28 DVDD
LRCK
DSPCLK
AD/DACLK
VREFH
27
Divider XTO
XTI
26
BCLK
LRCK
CKLO
NC 100
TESTI2
TESTIO3
DVB
DVB
SDIN2
SDOUT3
SDOUT1
SDIN1
SMODE
PDAD
PDDA
PD
RESET
TESTIO1
SDDA
SDDA2
8
SDAD
SDOUT2
3 4 5 6 7
TESTI1
OPCL
9 10 11 12 13 14 15 16 17 18 19 20
1 2
21 22 23 24 25
DVDD
DVSS
99
BCLK
LRCK
CLKO
AVB
SDATA
LRCK
DAC1 BCLK
MCLK
SDOUT1
SDIN1
SMODE
A-OUT-R1
A-OUT-L1
VRDAL
AVSS
AVDD
VRDAH
NC
WE
RASCE
CASRF
SO
50
49
IC901, 902 TDA8563AQ
POWER
STAGE
POWER
STAGE
POWER
STAGE
POWER
STAGE
VP
+
–
STANDBY
SWITCH
INVERT
AMP
NON-INVERT
AMP
NON-INVERT
AMP
INVERT
AMP
MUTE
SWITCH
S-GND
VP1
OUT-1 (+)
GND-1
OUT-1 (–)
OUT-2 (–)
GND-2
OUT-2 (+)
10
11
12
13
IN-2
4 5 6 7 8 9
V-DIAG
3
MODE
2
DIAGNOSTIC
CIRCUIT
VP2
1
IN-1
MUTE
CONTROL
CIRCUIT
– 50 –
XTO
XTI