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Service
Manual
KEH-P2800/X1M/UC
ORDER NO.
CRT2268
MULTI-CD CONTROL HIGH POWER CASSETTE PLAYER WITH FM/AM TUNER
KEH-P2800
KEH-P3850
X1M/UC
X1M/ES
NOTE:
- See the separate manual CX-644(CRT1800) for the cassette mechanism description.
- The cassette mechanism assy employed in this model is one of 2M series.
- This service manual does not describe the CD test mode.
For the operations in the CD test mode, refer to the CD player's Service Manual.
CONTENTS
1.
2.
3.
4.
5.
6.
SAFETY INFORMATION............................................2
EXPLODED VIEWS AND PARTS LIST ......................2
SCHEMATIC DIAGRAM.............................................8
PCB CONNECTION DIAGRAM................................18
ELECTRICAL PARTS LIST........................................26
ADJUSTMENT .........................................................32
7. GENERAL INFORMATION.......................................34
7.1 PARTS ................................................................34
7.1.1 IC ...............................................................34
7.1.2 DISPLAY ...................................................38
7.2 DISASSEMBLY ..................................................39
7.3 BLOCK DIAGRAM .............................................40
8. OPERATIONS AND SPECIFICATIONS ....................41
PIONEER ELECTRONIC CORPORATION
4-1, Meguro 1-Chome, Meguro-ku, Tokyo 153-8654, Japan
PIONEER ELECTRONICS SERVICE INC. P.O.Box 1760, Long Beach, CA 90801-1760 U.S.A.
PIONEER ELECTRONIC [EUROPE] N.V. Haven 1087 Keetberglaan 1, 9120 Melsele, Belgium
PIONEER ELECTRONICS ASIACENTRE PTE.LTD. 253 Alexandra Road, #04-01, Singapore 159936
C PIONEER ELECTRONIC CORPORATION 1998
K-ZZB. DEC. 1998 Printed in Japan
KEH-P2800,P3850
1. SAFETY INFORMATION
CAUTION
This service manual is intended for qualified service technicians; it is not meant for the casual do-it-yourselfer.
Qualified technicians have the necessary test equipment and tools, and have been trained to properly and safely repair
complex products such as those covered by this manual.
Improperly performed repairs can adversely affect the safety and reliability of the product and may void the warranty.
If you are not qualified to perform the repair of this product properly and safely; you should not risk trying to do so
and refer the repair to a qualified service technician.
WARNING
This product contains lead in solder and certain electrical parts contain chemicals which are known to the state of
California to cause cancer, birth defects or other reproductive harm.
Health & Safety Code Section 25249.6 - Proposition 65
2. EXPLODED VIEWS AND PARTS LIST
2.1 PACKING
19
18
17
3
6
16
7
4
12
5
9
2
10
8
14
20
1
15
11
13
2
KEH-P2800,P3850
NOTE:
- Parts marked by “*” are generally unavailable because they are not in our Master Spare Parts List.
- Screws adjacent to ∇ mark on the product are used for disassembly.
- PACKING SECTION PARTS LIST
Part.No
KEH-P3850/X1M/ES
CDE5805
CBH1650
CEA2351
CBA1304
CEG-127
Mark No.
1
2
3
4
*
5
Description
Cord Assy
Spring
Screw Assy
Screw
Polyethylene Bag
KEH-P2800/X1M/UC
CDE5805
CBH1650
CEA2351
CBA1304
CEG-127
6
7
8
9
10
Screw(x4)
Screw(x4)
Polyethylene Bag
Handle(x2)
Bush
CRZ50P090FMC
TRZ50P080FMC
CEG-158
CNC5395
CNV3930
CRZ50P090FMC
TRZ50P080FMC
CEG-158
CNC5395
CNV3930
11
12
13
14
15
Polyethylene Bag
Carton
Contain Box
Protector
Protector
CEG1173
CHG3598
CHL3598
CHP1622
CHP1623
CEG-162
CHG3599
CHL3599
CHP1622
CHP1623
16
17
18
19
20
Owner’s Manual
Owner’s Manual
Installation Manual
Card
Case Assy
CRD2804
Not used
CRD2805
ARY1048
CXB3520
CRD2801
CRD2802
CRD2803
Not used
CXB3520
*
*
- Owner's Manual, Installation Manual
Model
KEH-P2800/X1M/UC
KEH-P3850/X1M/ES
Part No.
CRD2804
CRD2805
CRD2801
CRD2802
CRD2803
Language
English,French,Spanish
English,French,Spanish
English,Spanish,Portuguese(B)
Chinese,Arabic
English,Spanish,Portuguese(B),Chinese,Arabic
3
KEH-P2800,P3850
2.2 EXTERIOR
4
KEH-P2800,P3850
(1) EXTERIOR SECTION PARTS LIST
Mark No.
1
2
3
4
5
Description
Screw
Screw
Cord Assy
Case
Panel
Part No.
BSZ26P050FMC
BSZ30P100FMC
CDE5805
CNB2481
CNS5214
Mark No.
36
37
38
39
40
6
7
8
9
10
Screw
Screw
Screw
Holder
Cushion
BSZ30P055FUC
BSZ30P060FMC
BSZ30P100FMC
CNC5704
CNM4870
11
12
13
14
15
Insulator
Tuner Amp Unit
Screw
Screw
Screw
CNM5025
16
17
18
19
20
FM/AM Tuner Unit
Holder
Pin Jack(CN401)
Plug(CN601)
Connector(CN604)
See Contrast table(2)
21
22
23
24
25
Description
Bracket
Bracket
Arm
Arm
Arm
Part No.
CNC6135
CNC6791
CNV4692
CNV4693
CNV4728
41
42
43
44
45
Panel Unit
Door
Spring
Screw
Detach Grille Assy
CXB3715
CAT2028
CBH1838
IMS20P030FZK
See Contrast table(2)
46
47
48
49
50
Screw
Button(Detachable)
Button(Eject)
Button(REW)
Button(FF)
BPZ20P120FZK
CAC5868
CAC5870
CAC5872
CAC5874
CNC6554
CKB1035
CKM1270
CKS3362
51
52
53
54
55
Button(F,A,Cross)
Button(-,-)
Button(1-6,D,B)
Button(+,-)
Button(SO/OFF,PGM)
CAC5876
CAC5878
CAC5880
CAC5882
CAC5884
Connector(CN602)
Connector(CN603)
Antenna Jack(CN301)
Panel
Holder
CKS3408
CKS3581
CKX1056
CNB2245
CNC5399
56
57
58
59
60
Spring
Spring
Grille
Cover
Keyboard Unit
CBH1836
CBH2103
See Contrast table(2)
26
27
28
29
30
Holder
Heat Sink
Holder
Holder
Chassis Unit
CNC6216
CNC6217
CNC6531
CNC6845
CXA9851
61
62
63
64
65
LCD(LCD901)
Connector(CN901)
Holder
Connector
Rubber
CAW1513
CKS3580
CNC8054
CNV5586
CNV5587
31
32
33
34
35
Holder Unit
Button
Spring
Spring
Spring
CXB2687
CAC4836
CBH1834
CBH1835
CBH1996
66
67
68
69
70
Holder
Lighting Conductor
Case Assy
Transistor(Q804)
See Contrast table(2)
BPZ26P080FMC
BSZ26P080FMC
BSZ26P140FMC
*
CNS5209
CWM6273
CNV5589
CNV5752
CXB3520
2SD2396
Cassette Mechanism Assy EXK3450
71 Fuse(FU951)(10A)
72 IC(IC501)
73 Cord
CEK1136
TDA7384
See Contrast table(2)
(2) CONTRAST TABLE
KEH-P2800/X1M/UC and KEH-P3850/X1M/ES are constructed the same except for the following:
Mark No.
12
16
45
58
*
73
Description
Tuner Amp Unit
FM/AM Tuner Unit
Detach Grille Assy
Grille
Cord
Part No.
KEH-P2800/X1M/UC
KEH-P3850/X1M/ES
CWM6276
CWM6349
CWE1467
CWE1486
CXB3369
CXB3375
CNS5200
CNS5201
CDC1043
Not used
5
KEH-P2800,P3850
2.3 CASSETTE MECHANISM ASSY
6
KEH-P2800,P3850
- CASSETTE MECHANISM ASSY SECTION PARTS LIST
Mark No. Description
Part No.
Mark No. Description
Part No.
Screw
Washer
Connector(CN1)
Screw(M2x5)
Screw(M2x2.5)
BSZ23P050FMC
CBG1003
CKS2829
EBA1038
EBA1037
46
47
48
49
50
Gear
Gear
Gear
Gear
Lever
ENV1475
ENV1512
ENV1513
ENV1502
ENV1480
6
7
8
9
10
Spring
Spring
Spring
Spring
Spring
EBH1554
EBH1555
EBH1556
EBH1603
EBH1591
51
52
53
54
55
Lever
Pinch Holder Unit
Arm
PCB
Switch(Eject)(S4)
ENV1487
EXA1516
ENV1519
ENP1161
ESG1006
11
12
13
14
15
Spring
Spring
Spring
Spring
Spring
EBH1559
EBH1593
EBH1561
EBH1562
EBH1563
56
57
58
59
60
Switch(FWD)(REV)(S3)
Switch(Load)(S1)
Switch(Mute)(S2)
Head Assy(HD1)
Motor Unit(M1)
ESH1006
ESN1016
ESN1017
EXA1466
EXA1467
16
17
18
19
20
Spring
Spring
Spring
Spring
Spring
EBH1590
EBH1565
EBH1566
EBH1567
EBH1568
61
62
63
64
65
Flywheel Unit
•••••
Arm Unit
Arm Unit
Arm Unit
EXA1547
EXA1447
EXA1448
EXA1550
21
22
23
24
25
Spring
Spring
Spring
Head Base
Lever
EBH1569
EBH1571
EBH1579
ENC1475
ENC1429
66
67
68
69
70
Reel Unit
Pinch Holder
Pinch Roller
Pinch Holder
Pinch Holder Unit
EXA1450
ENV1466
ENV1518
ENV1467
EXA1515
26
27
28
29
30
Lever
Lever
Lever
Arm
Arm
ENC1430
ENC1431
ENC1432
ENC1433
ENC1434
71
72
73
74
75-78
Chassis Unit
Arm
Washer
Resistor(R1)
•••••
EXA1498
ENV1524
CBF-167
RD1/4HM472J
31
32
33
34
35
Arm
Arm
Bracket
Lever
Arm
ENC1480
ENC1476
ENC1512
ENC1523
ENC1524
79
80
81
82
Cover
•••••
Spring
Washer
ENC1452
36
37
38
39
40
Frame
Holder
Lever
Lever
Belt
ENC1440
ENC1441
ENC1446
ENC1478
ENT1027
41
42
43
44
45
Gear
Gear
Gear
Lever
Gear
ENV1504
ENV1470
ENV1517
ENV1472
ENV1510
1
2
3
4
5
*
EBH1592
CBF1051
7
1
2
3
4
KEH-P2800,P3850
3. SCHEMATIC DIAGRAM
A
3.1 OVERALL CONNECTION DIAGRAM(GUIDE PAGE)
Note: When ordering service parts, be sure to refer to “EXPLODED VIEWS AND PARTS LIST” or “ELECTRICAL PARTS
LIST”.
A-a
A-a
A-a
A-b
A-b
Large size
SCH diagram
B
FM/AM TUNER UNIT
CWE1467(/UC)
CWE1486(/ES)
Guide page
B
A-a
A-b
Detailed page
220
C
D
24dBs
CASSETTE
PCB
D
8
A D
1
2
3
4
6
5
8
7
KEH-P2800,P3850
A
A-b
A TUNER AMP UNIT
B
TAPE:-25dBs
TAPE:-4dBs
FM:+5dBs
AM:-1dBs
CD:+10dBs
TAPE:22dBs
C
B
PGM
D
C KEYBOARD UNIT
A C
5
6
7
8
9
B
D
10
1
CWE1467(/UC)
CWE1486(/ES)
FM/AM TUNER UNIT
A
A-a A-b
KEH-P2800,P3850
1
B
C
A-a
2
3
4
2
3
4
6
5
7
8
A-a A-b
KEH-P2800,P3850
A
220
24dBs
B
5
6
CASSETTE
PCB
D
C
D
7
A-a D
8
11
D
TAPE:-25dBs
C
12
TAPE:22dBs
1
A-b
1
TAPE:-4dBs
FM:+5dBs
AM:-1dBs
CD:+10dBs
A TUNER AMP UNIT
A
A-a A-b
KEH-P2800,P3850
2
2
3
3
4
B
4
5
6
8
7
C KEYBOARD UNIT
A-a A-b
KEH-P2800,P3850
A
B
PGM
B
C
D
5
6
A-b C
7
8
13
1
2
3
4
KEH-P2800,P3850
3.2 FM/AM TUNER UNIT
- CWE1467 (KEH-P2800/X1M/UC)
A
B
D6 MA157
R1
2R2M
R2
2R2M
D2 RD39JS D1 RD39JS
B
C
1
2
3
D
14
B
1
2
3
4
FM/AM TUNER
6
5
8
7
KEH-P2800,P3850
A
A
IFC
NER UNIT
B
C
D
B
5
6
7
8
15
1
2
3
4
KEH-P2800,P3850
- CWE1486 (KEH-P3850/X1M/ES)
A
B
FM/AM TUNER
D6 MA157
R1
2R2M
R2
2R2M
D2 RD39JS D1 RD39JS
B
C
1
2
3
D
16
B
1
2
3
4
6
5
8
7
KEH-P2800,P3850
A
A
IFC
NER UNIT
B
C
D
B
5
6
7
8
17
1
2
3
4
KEH-P2800,P3850
4. PCB CONNECTION DIAGRAM
A
CORD ASSY
4.1 TUNER AMP UNIT
NOTE FOR PCB DIAGRAMS
1. The parts mounted on this PCB
include all necessary parts for
several destination.
For further information for
respective destinations, be sure
to check with the schematic
diagram.
2. Viewpoint of PCB diagrams
Capacitor
Connector
SIDE A
B
Chip Part
P.C.Board
A
SIDE B
TUNER AMP UNIT
C
D
C
A
18
1
2
3
4
CN901
5
6
8
7
KEH-P2800,P3850
SIDE A
A
IP-BUS
B
3
2
1
D
CN1
C
B
D
A
5
6
7
8
19
1
2
3
4
2
3
4
KEH-P2800,P3850
A
TUNER AMP UNIT
A
B
C
D
20
A
1
5
6
7
8
KEH-P2800,P3850
SIDE B
A
B
C
D
A
5
6
7
8
21
1
2
3
4
KEH-P2800,P3850
4.2 FM/AM TUNER UNIT
SIDE A
A
A
B
B
CORD
CDC1043
(/UC Only)
FM/AM TUNER UNIT
C
To
Antenna
Jack
D
22
B
1
2
3
4
1
2
4
3
KEH-P2800,P3850
SIDE B
A
B
B
FM/AM TUNER UNIT
C
D
B
1
2
3
4
23
24
1
1
2
3
4
5
6
B
A
CN603
B
A
CLOCK
4.3 KEYBOARD UNIT
2
KEYBOARD UNIT
D
F
LOUD
1
C
VOL-
PGM
A
VOL+
SOURCE
KEYBOARD UNIT
D
C
KEH-P2800,P3850
2
3
3
4
SIDE A
SIDE B
C
C
4
2
1
4
3
KEH-P2800,P3850
4.4 CASSETTE MECHANISM ASSY
D
A
CASSETTE PCB
R1
RR
S4
EJECT SW
S1
LOAD SW
FR
M1
MOTOR
FL
M
D1
RL
HD1
FWD/REV
PB HEAD
S3
FWD/REV SW
2
S2
MUTE SW
CN1
5 7 9
1 3
4
6
B
8 10
A
CN604
C
D
D
1
2
3
4
25
KEH-P2800,P3850
5. ELECTRICAL PARTS LIST
NOTE:
- Parts whose parts numbers are omitted are subject to being not supplied.
- The part numbers shown below indicate chip components.
Chip Resistor
RS1/_S___J,RS1/__S___J
Chip Capacitor (except for CQS.....)
CKS....., CCS....., CSZS.....
=====Circuit Symbol and No.===Part Name
--- -----------------------------------------------
A
Part No.
-------------------------
Unit Number : CWM6276 (KEH-P2800/X1M/UC)
Unit Number : CWM6349 (KEH-P3850/X1M/ES)
Unit Name
: Tuner Amp Unit
MISCELLANEOUS
=====Circuit Symbol and No.===Part Name
--- -----------------------------------------------
Part No.
-------------------------
D
D
D
D
D
615
616
801
802
803
Diode
Diode
Diode
Diode
Diode
1SS270
1SS270
1SR139-400
1SR139-400
1SR139-400
IC
IC
IC
IC
IC
201
301
401
501
601
IC
IC
IC
IC
IC
LA3161P
PM2006A
SN761029DL
TDA7384
PE5015A
D
D
D
D
L
804
805
806
807
301
Diode
Diode
Diode
Diode
Ferri-Inductor
MA8056(H)
MA8091(M)
1SR139-400
1SR139-400
LAU101K
IC
IC
IC
Q
Q
602
603
801
301
401
IC
IC
IC
Transistor
Transistor
S-80734AN
CA0008AM
TPD1018F
2SC1740S
DTC143TK
L
L
L
L
L
302
601
602
603
604
Ferri-Inductor
Ferri-Inductor
Ferri-Inductor
Ferri-Inductor
Ferri-Inductor
LAU2R2K
LAU101K
LAU101K
LAU101K
LAU2R2K
Q
Q
Q
Q
Q
402
403
501
502
601
Transistor
Transistor
Transistor
Transistor
Transistor
DTC143TK
DTA124EK
DTC124ES
DTC124ES
DTC143TS
L
X
X
FU
951
301
601
801
Q
Q
Q
Q
Q
602
603
606
607
611
Transistor
Transistor
Transistor
Transistor
Transistor
DTC124ES
2SC1740S
DTC114EK
2SA1037K
2SC1740S
Q
Q
Q
Q
Q
612
613
801
802
803
Transistor
Transistor
Transistor
Transistor
Transistor
2SC2412K
2SC2412K
2SD2037
2SB1243
2SC2412K
Q
Q
Q
Q
Q
804
805
806
807
808
Transistor
Transistor
Transistor
Transistor
Transistor
2SD2396
2SA1048
2SC2412K
2SA1674
2SC2412K
Q
Q
Q
D
D
809
810
811
201
301
Transistor
Transistor
Transistor
Diode
Diode
2SA933S
2SB1242
DTC143TK
1SS270
1SS270
D
D
D
D
D
302
601
602
603
604
Diode
Diode
Diode
Diode
Diode
1SS270
1SS270
HZS7L(A1)
1SS270
1SS270
D
D
D
D
D
605
606
607
608
609
Diode
Diode
Diode
Diode
Diode
1SS270
1SS270
1SS270
1SS270
1SS270
D
D
D
D
D
610
611
612
613
614
Diode
Diode
Diode
Diode
Diode
1SS270
1SS270
HZS9L(A2)
HZS7L(C3)
HZS7L(A1)
26
Choke Coil 600mH
CTH1168
Crystal Resonator 7.200MHz
CSS1379
Ceramic Resonator 4.194MHz
CSS1047
Fuse 2A
CEK1176
FM/AM TunerUnit (KEH-P2800/X1M/UC)CWE1467
FM/AM TunerUnit (KEH-P3850/X1M/ES) CWE1486
RESISTORS
R
R
R
R
R
201
202
203
204
205
RS1/10S273J
RS1/10S273J
RS1/10S104J
RS1/10S104J
RS1/10S472J
R
R
R
R
R
206
207
208
209
210
RS1/10S472J
RS1/10S470J
RS1/10S470J
RS1/10S273J
RS1/10S273J
R
R
R
R
R
301
302
305
306
307
(KEH-P3850/X1M/ES)
RS1/10S152J
RS1/10S152J
RS1/10S182J
RD1/4PU222J
RS1/8S222J
R
R
R
R
R
308
309
310
311
312
(KEH-P2800/X1M/UC)
RS1/8S222J
RS1/10S102J
RS1/10S0R0J
RS1/8S102J
RD1/4PU0R0J
R
R
R
R
R
314
315
316
317
318
RS1/8S392J
RS1/10S392J
RS1/10S152J
RS1/10S103J
RS1/10S0R0J
R
R
R
R
R
320
321
322
323
324
RS1/10S472J
RS1/10S472J
RS1/10S152J
RS1/10S472J
RD1/4PU102J
KEH-P2800,P3850
=====Circuit Symbol and No.===Part Name
--- -----------------------------------------------
Part No.
-------------------------
=====Circuit Symbol and No.===Part Name
--- -----------------------------------------------
Part No.
-------------------------
R
R
R
R
R
326
328
332
333
334
RD1/4PU0R0J
RS1/10S182J
RS1/10S103J
RS1/8S393J
RD1/4PU562J
R
R
R
R
R
636
637
638
639
640
RD1/4PU473J
RD1/4PU473J
RS1/10S101J
RS1/10S101J
RS1/10S620J
R
R
R
R
R
335
336
338
339
340
RD1/4PU472J
RD1/4PU473J
RD1/4PU104J
RS1/10S473J
RS1/10S473J
R
R
R
R
R
641
642
643
644
645
RS1/10S221J
RS1/10S221J
RS1/10S223J
RS1/10S223J
RS1/10S102J
R
R
R
R
R
341
342
343
344
345
RS1/10S681J
RS1/10S681J
RD1/4PU681J
RD1/4PU681J
RD1/4PU222J
R
R
R
R
R
646
649
650
651
655
RS1/10S102J
RS1/10S223J
RS1/8S472J
RD1/4PU222J
RS1/10S223J
R
R
R
346
349
350
R
351
RS1/8S472J
RD1/4PU102J
LCTBR39K2125
RS1/10S510J
RS1/10S0R0J
R
R
R
R
R
656
657
658
659
660
RS1/10S103J
RD1/4PU472J
RS1/10S473J
RS1/10S223J
RD1/4PU473J
R
R
R
R
R
352
353
354
355
401
RS1/10S0R0J
RS1/10S0R0J
RD1/4PU102J
RS1/8S0R0J
RD1/4PU0R0J
R
R
R
R
R
661
662
663
664
665
RS1/10S473J
RD1/4PU223J
RD1/4PU473J
RS1/10S222J
RS1/10S102J
R
R
R
R
R
402
403
404
405
406
RD1/4PU0R0J
RS1/10S272J
RS1/10S272J
RS1/10S151J
RS1/10S151J
R
R
R
R
R
667
670
673
801
802
RD1/4PU103J
RS1/8S0R0J
RS1/10S0R0J
RD1/4PU102J
RS1/10S472J
R
R
R
R
R
407
408
409
410
411
RS1/10S0R0J
RS1/10S0R0J
RS1/10S821J
RS1/10S821J
RS1/10S223J
R
R
R
R
R
803
804
805
806
807
RS1/10S101J
RD1/4PU332J
RS1/10S103J
RD1/4PU102J
RD1/4PU122J
R
R
R
R
R
412
501
502
503
504
RS1/10S223J
RD1/4PU103J
RS1/10S153J
RS1/10S221J
RS1/10S101J
R
R
R
R
R
808
809
810
812
813
RS1/10S103J
RS1/10S102J
RD1/4PU473J
RS1/10S103J
RS1/10S102J
R
R
R
505
601
602
R
606
RS1/8S103J
RS1/10S473J
RS1/8S473J
RS1/8S223J
RS1/10S0R0J
R
R
R
R
R
814
816
817
818
819
RS1/10S473J
RS1/10S472J
RS1/10S223J
RS1/10S222J
RS1/10S472J
R
R
R
R
R
608
613
614
615
616
RD1/4PU221J
RS1/10S473J
RS1/10S473J
RS1/10S222J
RS1/10S222J
R
R
R
R
R
820
821
822
823
824
RD1/4PU102J
RD1/4PU1R5J
RD1/4PU1R5J
RD1/4PU1R0J
RS1/10S103J
R
R
R
R
R
617
618
619
620
621
RS1/10S222J
RD1/4PU103J
RS1/8S473J
RS1/10S473J
RD1/4PU104J
R
825
RS1/10S103J
R
R
R
R
R
622
623
624
625
630
RS1/10S473J
RD1/4PU473J
RS1/10S332J
RS1/10S102J
RD1/4PU152J
R
R
R
R
R
631
632
633
634
635
RS1/10S102J
RS1/10S124J
RS1/10S102J
RS1/10S102J
RS1/10S102J
(KEH-P2800/X1M/UC)
(KEH-P3850/X1M/ES)
(KEH-P3850/X1M/ES)
(KEH-P2800/X1M/UC)
(KEH-P3850/X1M/ES)
CAPACITORS
C
C
C
C
C
201
202
203
204
205
CKSQYB681K50
CKSQYB681K50
CEJA2R2M50
CEJA2R2M50
CKSQYB333K50
C
C
C
C
C
206
207
208
209
210
CKSQYB333K50
CEJA101M10
CEJA101M10
CEJA1R0M50
CEJA1R0M50
C
C
C
C
C
211
301
302
303
304
CEJA101M10
CKSQYB473K50
CKSQYB473K50
CKSQYB223K50
CCSQCH101J50
27
KEH-P2800,P3850
=====Circuit Symbol and No.===Part Name
--- -----------------------------------------------
Part No.
-------------------------
=====Circuit Symbol and No.===Part Name
--- -----------------------------------------------
Part No.
-------------------------
C
C
C
C
C
307
308
309
311
313
CKSQYB103K50
CCSQCH101J50
CKPUYY103M16
CCSQCH101J50
CKSQYB223K50
C
C
C
C
C
610
611
612
613
614
CKSQYB104K16
CEJA1R0M50
CEJA1R0M50
CEJA1R0M50
CEJA1R0M50
C
C
C
C
C
314
315
316
317
318
CKSQYB473K50
CEJA220M6R3
CKSQYB103K50
CKSQYB103K50
CKSQYB102K50
C
C
C
C
C
620
621
623
801
802
3300µF/16V
470µF/16V
CCSQCH101J50
CCSQCH101J50
CKSQYB102K50
CCH1018
CCH1183
C
C
C
C
C
319
320
321
325
326
CEJA220M10
CCSQCH150J50
CCSQCH150J50
CCH1250
CKSQYB103K50
C
C
C
C
C
803
804
805
806
807
330µF/10V
CKSQYB102K50
CKSQYB473K50
CEJA101M10
CKSQYB103K50
CCH1181
C
C
C
C
C
328
331
332
333
334
CKLSR473K16
CKSQYB104K16
CEJA220M6R3
CKSQYB103K50
CEJA220M6R3
C
C
C
808
809
811
100µF/16V
CKSQYB103K50
CKSQYB104K16
CCH1179
C
C
C
C
C
335
336
337
340
341
CKSQYB103K50
CKSQYB223K50
CKSQYB103K50
CFTLA154J50
CKSQYB103K50
C
C
C
C
C
342
343
401
402
403
CKSQYB473K50
CKSQYB102K50
CEJA2R2M50
CEJA2R2M50
CEJA100M16
C
C
C
C
C
404
405
406
407
408
CEJA100M16
CKSQYB822K50
CKSQYB822K50
CEJA1R0M50
CEJA1R0M50
C
C
C
C
C
409
410
411
412
413
CKSQYB183K50
CKSQYB183K50
CKSQYB104K16
CKSQYB104K16
CKSQYB104K16
C
C
C
C
C
414
415
416
417
418
CKSQYB104K16
CEJA100M16
CEJA2R2M50
CKSQYB473K50
CKSQYB104K16
C
C
C
C
C
419
420
421
422
501
CEJA470M10
CEJA2R2M50
CEJA2R2M50
CEJA2R2M50
CKSYB224K16
C
C
C
C
C
502
503
504
505
506
CKSYB224K16
CKSYB224K16
CKSYB224K16
CEJA1R0M50
CKSYB105K16
C
C
C
C
C
507
508
510
601
602
CEJA100M16
CEJA330M10
CKSQYB104K16
CCSQCH101J50
CEJA4R7M35
C
C
C
C
C
604
606
607
608
609
CCSQCH101J50
CKSQYB104K16
CKSQYB224K16
CEJA2R2M50
CKSQYB102K50
(KEH-P3850/X1M/ES)
4.7µF/16V
C
Unit Number : CWM6273
Unit Name
: Keyboard Unit
MISCELLANEOUS
IC
D
L
X
IL
901
901
901
901
901
IC
Diode
Ferri-Inductor
Ceramic Resonator 4.97MHz
Lamp 14V 40mA
PD6293A
STZ6R2N
LAU101K
CSS1422
CEL1547
IL
IL
IL
LCD
902
903
904
901
Lamp 14V 40mA
Lamp 14V 40mA
Lamp 14V 40mA
LCD
CEL1547
CEL1547
CEL1547
CAW1513
RESISTORS
R
R
R
R
R
901
902
903
906
907
RS1/10S222J
RS1/10S222J
RS1/10S472J
RS1/10S473J
RS1/10S473J
R
R
R
R
R
908
909
910
911
912
RS1/10S473J
RS1/10S473J
RS1/10S473J
RS1/10S473J
RS1/10S473J
R
R
913
915
RS1/10S0R0J
RS1/10S0R0J
CAPACITORS
C
C
C
C
B
901
904
905
906
CEAL100M16
CKSQYB104K16
CKSQYB102K50
CCSCH101J50
Unit Number : CWE1467 (KEH-P2800/X1M/UC)
Unit Name
: FM/AM Tuner Unit
MISCELLANEOUS
28
IC
IC
Q
Q
Q
1
2
1
2
3
IC
IC
Transistor
Transistor
FET
PA4023B
PA4024A
2SC2412K
DTC124EU
3SK263
Q
Q
Q
Q
D
31
201
202
203
1
Transistor
FET
Transistor
Transistor
Diode
2SC2412K
2SK932
2SC2412K
DTC124EU
RD39JS
KEH-P2800,P3850
=====Circuit Symbol and No.===Part Name
--- -----------------------------------------------
Part No.
-------------------------
=====Circuit Symbol and No.===Part Name
--- -----------------------------------------------
Part No.
-------------------------
D
D
D
D
D
2
4
5
6
7
Diode
Diode
Diode
Diode
Diode
RD39JS
1SV250
KV1410-F1
MA157
KV1410-F1
R
R
R
R
R
163
202
203
204
206
RS1/16S223J
RS1/16S223J
RS1/16S225J
RS1/16S103J
RS1/16S220J
D
D
D
D
L
8
201
202
231
2
Diode
Diode
Diode
Diode
Coil
KV1410-F1
MA157
MA157
SVC253
CTC1133
R
R
R
R
R
207
208
209
214
215
RS1/16S101J
RS1/16S102J
RS1/16S471J
RS1/16S822J
RS1/16S822J
L
L
L
L
L
3
4
5
51
201
Inductor
Coil
Coil
Ferri-Inductor
Ferri-Inductor
LCTB2R2K2125
CTC1133
CTC1132
LAU150K
LAU4R7K
R
R
R
R
R
217
231
232
237
238
RS1/16S102J
RS1/16S272J
RS1/16S473J
RS1/16S103J
RS1/16S104J
L
L
L
L
T
202
203
208
231
31
Ferri-Inductor
Inductor
Inductor
Inductor
Coil
LAU330K
CTF1287
LAU121K
LCTA3R3J3225
CTE1117
R
R
R
R
R
239
240
241
243
244
RS1/16S104J
RS1/16S332J
RS1/16S202J
RS1/16S183J
RS1/16S392J
T
CF
CF
CF
CF
51
51
52
53
232
Coil
Ceramic Filter
Ceramic Filter
Ceramic Filter
Ceramic Filter
CTC1159
CTF1441
CTF1441
CTF1441
CTF1348
R
247
RS1/16S123J
X
X
VR
151
231
154
Radiator 918.5Hz
Crystal Resonator 10.26MHz
Semi-fixed 150kΩ(B)
CSS1365
CSS1111
CCP1213
RESISTORS
R
R
R
R
R
1
2
4
5
6
RS1/16S225J
RS1/16S225J
RS1/16S154J
RS1/16S391J
RS1/16S223J
R
R
R
R
R
7
8
9
10
11
RS1/16S123J
RS1/16S332J
RS1/16S473J
RS1/16S223J
RS1/16S124J
R
R
R
R
R
13
15
16
17
18
RS1/16S563J
RS1/16S271J
RS1/16S104J
RS1/16S332J
RS1/16S332J
R
R
R
R
R
31
32
33
34
35
RS1/16S470J
RS1/16S822J
RS1/16S822J
RS1/16S331J
RS1/16S331J
R
R
R
R
R
51
52
55
56
61
RS1/16S271J
RS1/16S560J
RS1/16S102J
RS1/16S823J
RS1/16S392J
R
R
R
R
R
62
101
102
103
104
RS1/16S273J
RS1/16S272J
RS1/16S682J
RS1/16S333J
RS1/16S334J
R
R
R
R
R
105
107
151
152
155
RS1/16S683J
RS1/16S222J
RS1/16S222J
RS1/16S393J
RS1/16S273J
R
R
R
R
R
156
157
160
161
162
RS1/16S243J
RS1/16S203J
RS1/16S222J
RS1/16S563J
RS1/16S105J
CAPACITORS
C
C
C
C
C
1
2
4
6
8
CCSQCH6R0D50
CCSRCK2R0C50
CCSRCH820J50
CCSRCH820J50
CKSRYB103K25
C
C
C
C
C
9
10
11
12
13
CKSQYB104K16
CCSRCKR50C50
CEJA1R0M50
CKSRYB222K50
CKSRYB222K50
C
C
C
C
C
14
15
16
17
18
CCSRCH220J50
CCSRCH6R0D50
CCSRCH8R0D50
CKSRYB222K50
CKSRYB103K25
C
C
C
C
C
19
20
21
22
23
CKSRYB222K50
CKSRYB222K50
CEJA100M16
CCSRTH9R0D50
CCSRTH120J50
C
C
C
C
C
24
25
26
31
32
CCSRCH471J50
CKSRYB103K25
CCSRCH101J50
CKSRYB103K25
CKSQYB472K50
C
C
C
C
C
33
34
36
51
52
CCSRCH5R0C50
CKSQYB104K16
CCSRRH201J50
CKSRYB223K25
CKSRYB103K25
C
C
C
C
C
54
55
56
57
58
CCSRCH470J50
CKSQYB223K25
CKSQYB104K16
CKSRYB472K50
CEJA330M10
C
C
C
C
C
59
60
61
62
63
CKSRYB103K25
CKSRYB102K50
CCSRCH270J50
CKSRYB103K25
CEJAR22M50
C
C
C
C
C
101
102
103
104
105
CEJANP100M10
CKSRYB182K50
CKSRYB682K25
CEJA2R2M50
CKSRYB103K25
29
KEH-P2800,P3850
=====Circuit Symbol and No.===Part Name
--- -----------------------------------------------
Part No.
-------------------------
=====Circuit Symbol and No.===Part Name
--- -----------------------------------------------
Part No.
-------------------------
C
C
C
C
C
106
107
151
152
153
CCSRCH151J50
CKSRYB103K25
CKSRYB472K50
CKSQYB104K16
CEJA3R3M50
D
D
D
D
L
8
201
202
231
2
Diode
Diode
Diode
Diode
Coil
KV1410-F1
MA157
MA157
SVC253
CTC1133
C
C
C
C
C
154
157
158
159
160
CKSQYB104K16
CEJA3R3M50
CKSYB474K16
CEJA220M6R3
CKSQYB104K16
L
L
L
L
L
3
4
5
6
51
Inductor
Coil
Coil
Inductor
Ferri-Inductor
LCTB2R2K2125
CTC1133
CTC1132
LCTBR15K1608
LAU150K
C
C
C
C
C
161
162
163
170
201
CKSQYB104K16
CEJA3R3M50
CKSRYB102K50
CCSRCH100D50
CCSRCH471J50
L
L
L
L
L
201
202
203
208
231
Ferri-Inductor
Ferri-Inductor
Inductor
Inductor
Inductor
LAU4R7K
LAU330K
CTF1287
LAU121K
LCTA3R3J3225
C
C
C
C
C
202
203
204
205
206
CCSRCH100D50
CKSRYB332K50
CKSQYB473K16
CKSQYB473K16
CKSQYB104K16
T
T
CF
CF
CF
31
51
51
52
53
Coil
Coil
Ceramic Filter
Ceramic Filter
Ceramic Filter
CTE1117
CTC1159
CTF1441
CTF1441
CTF1441
C
C
C
C
C
207
209
211
212
213
CCSRCH560J50
CKSQYB104K16
CCSRCH101J50
CEJA470M6R3
CKSRYB103K25
CF
X
X
VR
232
151
231
154
Ceramic Filter
Radiator 918.5Hz
Crystal Resonator 10.26MHz
Semi-fixed 150kΩ(B)
CTF1348
CSS1365
CSS1111
CCP1213
C
C
C
C
C
216
217
219
220
230
CCSRCH101J50
CEJA1R5M50
CCSRCH471J50
CKSRYB103K25
CKSRYB103K25
C
C
C
C
C
231
232
233
234
235
CCSRCH330J50
CCSRCH150J50
CKSQYB104K16
CEJA330M10
CKSRYB332K50
C
C
C
C
C
236
237
239
240
241
CKSQYB473K16
CCSRCH120J50
CKSRYB472K50
CEJAR47M50
CKSQYB104K16
C
C
C
C
C
242
243
244
245
246
CEJAR47M50
CEJAR33M50
CKSQYB473K16
CKSRYB333K16
CKSQYB473K16
C
250
CCSRCH471J50
RESISTORS
B
Unit Number : CWE1486 (KEH-P3850/X1M/ES)
Unit Name
: FM/AM Tuner Unit
MISCELLANEOUS
R
R
R
R
R
1
2
4
5
6
RS1/16S225J
RS1/16S225J
RS1/16S154J
RS1/16S391J
RS1/16S223J
R
R
R
R
R
7
8
9
10
11
RS1/16S123J
RS1/16S332J
RS1/16S473J
RS1/16S223J
RS1/16S124J
R
R
R
R
R
13
15
16
17
18
RS1/16S563J
RS1/16S271J
RS1/16S104J
RS1/16S332J
RS1/16S332J
R
R
R
R
R
31
32
33
34
35
RS1/16S470J
RS1/16S822J
RS1/16S822J
RS1/16S331J
RS1/16S331J
R
R
R
R
R
51
52
55
56
61
RS1/16S271J
RS1/16S560J
RS1/16S102J
RS1/16S823J
RS1/16S392J
IC
IC
Q
Q
Q
1
2
1
2
3
IC
IC
Transistor
Transistor
FET
PA4023B
PA4024A
2SC2412K
DTC124EU
3SK263
R
R
R
R
R
62
101
102
103
104
RS1/16S273J
RS1/16S272J
RS1/16S682J
RS1/16S333J
RS1/16S334J
Q
Q
Q
Q
D
31
201
202
203
1
Transistor
FET
Transistor
Transistor
Diode
2SC2412K
2SK932
2SC2412K
DTC124EU
RD39JS
R
R
R
R
R
105
107
151
152
155
RS1/16S683J
RS1/16S222J
RS1/16S222J
RS1/16S393J
RS1/16S273J
D
D
D
D
D
2
4
5
6
7
Diode
Diode
Diode
Diode
Diode
RD39JS
1SV250
KV1410-F1
MA157
KV1410-F1
R
R
R
R
R
156
157
160
161
162
RS1/16S243J
RS1/16S203J
RS1/16S222J
RS1/16S563J
RS1/16S105J
30
KEH-P2800,P3850
=====Circuit Symbol and No.===Part Name
--- -----------------------------------------------
Part No.
-------------------------
=====Circuit Symbol and No.===Part Name
--- -----------------------------------------------
Part No.
-------------------------
R
R
R
R
R
163
202
203
204
206
RS1/16S223J
RS1/16S223J
RS1/16S225J
RS1/16S103J
RS1/16S220J
C
C
C
C
C
107
151
152
153
154
CKSRYB103K25
CKSRYB472K50
CKSQYB104K16
CEJA3R3M50
CKSQYB104K16
R
R
R
R
R
207
208
209
214
215
RS1/16S101J
RS1/16S102J
RS1/16S471J
RS1/16S822J
RS1/16S822J
C
C
C
C
C
157
158
159
160
161
CEJA3R3M50
CKSYB474K16
CEJA220M6R3
CKSQYB104K16
CKSQYB104K16
R
R
R
R
R
217
231
232
237
238
RS1/16S102J
RS1/16S272J
RS1/16S473J
RS1/16S103J
RS1/16S104J
C
C
C
C
C
162
163
170
201
202
CEJA3R3M50
CKSRYB102K50
CCSRCH100D50
CCSRCH471J50
CCSRCH100D50
R
R
R
R
R
239
240
241
243
244
RS1/16S104J
RS1/16S332J
RS1/16S202J
RS1/16S183J
RS1/16S392J
C
C
C
C
C
203
204
205
206
207
CKSRYB332K50
CKSQYB473K16
CKSQYB473K16
CKSQYB104K16
CCSRCH560J50
R
247
RS1/16S123J
C
C
C
C
C
209
211
212
213
216
CKSQYB104K16
CCSRCH101J50
CEJA470M6R3
CKSRYB103K25
CCSRCH101J50
C
C
C
C
C
217
219
220
230
231
CEJA1R5M50
CCSRCH471J50
CKSRYB103K25
CKSRYB103K25
CCSRCH330J50
C
C
C
C
C
232
233
234
235
236
CCSRCH150J50
CKSQYB104K16
CEJA330M10
CKSRYB332K50
CKSQYB473K16
C
C
C
C
C
237
239
240
241
242
CCSRCH120J50
CKSRYB472K50
CEJAR47M50
CKSQYB104K16
CEJAR47M50
C
C
C
C
C
243
244
245
246
250
CEJAR33M50
CKSQYB473K16
CKSRYB333K16
CKSQYB473K16
CCSRCH471J50
CAPACITORS
C
C
C
C
C
1
2
4
6
8
CCSQCH6R0D50
CCSRCK2R0C50
CCSRCH820J50
CCSRCH820J50
CKSRYB103K25
C
C
C
C
C
9
10
11
12
13
CKSQYB104K16
CCSRCKR50C50
CEJA1R0M50
CKSRYB222K50
CKSRYB222K50
C
C
C
C
C
14
15
16
17
18
CCSRCH220J50
CCSRCH6R0D50
CCSRCH8R0D50
CKSRYB222K50
CKSRYB103K25
C
C
C
C
C
19
20
21
22
23
CKSRYB222K50
CKSRYB222K50
CEJA100M16
CCSRTH9R0D50
CCSRTH120J50
C
C
C
C
C
24
25
31
32
33
CCSRCH471J50
CKSRYB103K25
CKSRYB103K25
CKSQYB472K50
CCSRCH5R0C50
C
C
C
C
C
34
36
51
52
54
CKSQYB104K16
CCSRRH201J50
CKSRYB223K25
CKSRYB103K25
CCSRCH470J50
S
S
S
S
R
C
C
C
C
C
55
56
57
58
59
CKSQYB223K25
CKSQYB104K16
CKSRYB472K50
CEJA330M10
CKSRYB103K25
Miscellaneous Parts List
C
C
C
C
C
60
61
62
63
101
CKSRYB102K50
CCSRCH270J50
CKSRYB103K25
CEJAR22M50
CEJANP100M10
C
C
C
C
C
102
103
104
105
106
CKSRYB182K50
CKSRYB682K25
CEJA2R2M50
CKSRYB103K25
CCSRCH151J50
D
M
HD
FU
Unit Number :
Unit Name
: Cassette PCB
1
2
3
4
1
1
1
951
Switch(Load)
Switch(Mute)
Switch(FWD/REV)
Switch(Eject)
Motor Unit
Head Assy
Fuse 10A
ESN1016
ESN1017
ESH1006
ESG1006
RD1/4HM472J
EXA1467
EXA1466
CEK1136
31
KEH-P2800,P3850
6. ADJUSTMENT
- Connection Diagram
BACK UP
+14.4V
ACC
GND
DC Regulated
Power Supply
GND
Lch +
Lch -
4Ω
Oscilloscope
mV Meter (1)
Rch +
Rch -
4Ω
Dummy Antenna
Antenna
50Ω(37.5Ω)
FM SSG
Stereo
Modulator
50Ω(75Ω)
FM/AM TUNER UNIT (TOP VIEW)
L2
Pin26
Antenna
Pin 19
TUNER AMP UNIT
L4
FM/AM TUNER UNIT
T31
Pin14
DC V
Meter(1)
L5
Pin13
VR154
T51
Pin1
FM/AM TUNER UNIT (BOTTOM VIEW)
T51
C63
32
Center
Meter
KEH-P2800,P3850
FM ADJUSTMENT
Modulation
M:MONO MOD., 400Hz 30%(22.5kHz Dev.) or 400Hz 100%(75kHz Dev.)
S:STEREO MOD., 1kHz, L or R=30%(20.25kHz+7.5kHz Dev.)
NOTE:Before proceeding to further adjustments after switching power ON, let the tuner run for ten minutes to allow
the circuits to stabilize.
FM ADJUSTMENT(UC MODEL)
FM SSG
No.
TUN Volt 1
IF
2
ANT Coil 3
RF Coil
4
IFT
5
ARC
6
Frequency(MHz)
•••••
98.1
98.1
98.1
98.1
M
M
M
M
Displayed
Level(dBf)
•••••
60—100
5
5
5
98.1 S
40
107.9
98.1
98.1
98.1
98.1
Adjustment
Point
L5
T51
L2
L4
T31
98.1
VR154
Frequency(MHz)
Adjustment Method
(Switch Position)
DC V Meter(1) : 6V
Center Meter : 0
mV Meter(1) : Maximum
mV Meter(1) : Maximum
mV Meter(1) : Maximum
(STEREO MODE)
mV Meter(1) : Separation 5dB
(STEREO MODE)
FM ADJUSTMENT(ES MODEL)
FM SSG
No.
TUN Volt 1
Frequency(MHz)
2
ANT Coil 3
RF Coil
4
IFT
5
•••••
98.1
98.1
98.1
98.1
ARC
98.1 S
IF
6
M
M
M
M
Displayed
Level(dBf)
•••••
60—100
5
5
5
40
108.0
98.1
98.1
98.1
98.1
Adjustment
Point
L5
T51
L2
L4
T31
98.1
VR154
Frequency(MHz)
Adjustment Method
(Switch Position)
DC V Meter(1) : 6V
Center Meter : 0
mV Meter(1) : Maximum
mV Meter(1) : Maximum
mV Meter(1) : Maximum
(STEREO MODE)
mV Meter(1) : Separation 5dB
(STEREO MODE)
33
KEH-P2800,P3850
7. GENERAL INFORMATION
7.1 PARTS
7.1.1 IC
SN761029DL
TONEout-L
FRNTout-L
REARout-L
VREFin
AGND
DGND
Ct
34
Fader
FADERin-L
48 47 46 45 44 43 42 41 40 39 38 37 36 35 34 33 32 31 30 29 28 27 26 25
NC
Bass
BASS-C2-L
Isolator
BASS-R-L
Volume, Treble
Loudness
BASS-C1-L
Gain
Adjust
TREB-L
3 Line Serial Bus
VRin-L
Zero-cross
Detector
9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24
LOUD-L
A
8
ZCin-L
Power
Supply
7
SWout-L
Gain
Adjust
6
AGND
A
5
IN4(-)-L
Power
Supply
4
IN4(+)-L
Fader
3
IN3-L
Bass
2
IN2-L
Volume,
Loudness Treble
1
IN1-L
Isolator
AVcc
VCC
IN1-R
IN2-R
IN3-R
IN4(+)-R
IN4(-)-R
AGND
SWout-R
ZCin-R
LOUD-R
VRin-R
TREB-R
BASS-C1-R
BASS-R-R
BASS-C2-R
NC
TONEout-R
FADERin-R
FRNTout-R
REARout-R
DVcc
DATA
CLK
STB
KEH-P2800,P3850
- Pin Functions(PE5015A)
Pin No.
1,2
3
4
5,6
7
8
9
10
11
12
13
14
15,16
17
18–21
22
23
24
25
26
27
28
29
30–32
33
34–37
38
39
40
41–49
50
51
52
53
54
55-59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78–80
Pin Name
NC
ADPW
GND
NC
AVREF1
KYDT
DPDT
dsens
TUNPDI
TUNPDO
TUNPCK
TUNPCE
NC
TX
NC
swvdd
NC
VDT
VCK
VST
SYSPW
mute
DMINH
NC
GND
NC
FM
AM
ASENBO
NC
eject
tapld
MECPW
mcmut
NOR/rev
NC
reset
RX
NC
CLKIN
asens
bsens
SD
st
VDD
X2
X1
GND
NC
TESTIN
AVDD
AVREF0
SL
MODEL
NC
I/O
I
O
I
I
O
O
O
Format
C
C
C
C
O
C
O
C
O
O
O
O
O
O
C
C
C
C
C
C
O
O
O
C
C
C
I
I
O
I
I
C
I
I
I
I
I
I
I
I
I
I
Function and Operation
Not used
A/D converter power
GND
Not used
(Connect to VDD)
Key data input
Display data output
Grille detach sense input
PLL IC data input
PLL IC data output
PLL IC clock output
PLL IC chip enable output
Not used
IP BUS data output
Not used
Grille power supply control output
Not used
Data output for electronic volume
Clock output for electronic volume
Strobe pulse output for electronic volume
System power supply control output
System mute output
Mechanism mute cancel output
Not used
GND
Not used
FM power control output
AM power control output
Slave power supply control output
Not used
Eject key input
Tape loading input
Cassette mechanism power output
Mechanism mute input
Normal reverse input
Not used
Reset input
IP BUS data input
Not used
Clock input
ACC power sense input
Back up power sense input
SD input
FM stereo input
Power supply
Oscillator output
Oscillator input
GND
Not used
Test program mode input
A/D converter analog power supply (VDD)
(A/D converter standard voltage input)
Signal level input
Model select input
Not used
35
KEH-P2800,P3850
*PE5015A
61
80
1
Format
C
60
Meaning
C MOS
IC's marked by* are MOS type.
Be careful in handling them because they are very
liable to be damaged by electrostatic induction.
20
41
21
40
- Pin Functions (PD6293A)
Pin No.
1–5
6–8
9
10
11–14
15,16
17
18
19
20
21
22
23
24
25,26
27,28
29–55
56
57–64
Pin Name
SEG4-0
COM1-3
COM0
LCDB
KS3-0
KDT0,1
REM
DPDT
NC
KYDT
MODA
X0
X1
VSS
KDT2,3
KST5,4
SEG39-13
VCC
SEG12-5
I/O
O
O
O
O
I
I
I
O
I
O
O
O
Function and Operation
LCD segment output 4-0
Common driver output 1-3
Common driver output 0
LCD bias power supply
Key strobe output 3-0
Key data input 0,1
Remote control reception
Display data input
Not used
Key data output
GND
Crystal oscillator connection pin
Crystal oscillator connection pin
GND
Key data input 2,3
Key strobe output 5,4
LCD segment output 39-13
5V
LCD segment output 12-5
48
33
*PD6293A
17
64
36
1
49
16
32
KEH-P2800,P3850
PA4023B
37
KEH-P2800,P3850
7.1.2 DISPLAY
38
COMMON
SEGMENT
- CAW1513
KEH-P2800,P3850
7.2 DISASSEMBLY
- Removing the Case(not shown)
1. Remove the three screws.
2. Remove the Case.
- Removing the Cassette Mechanism Assy
(not shown)
1. Remove the four screws.
2.Disconnect the connector, and then removing the
Cassette Mechanism Assy.
- Removing the Panel Unit(Fig.1)
Disengage the stopper at two locations
indicated
Remove the Panel Unit.
Fig.1
Panel Unit
- Removing the Tuner Amp Unit(Fig.2)
Removing the two screws.
Removing the three screws.
Removing the screw.
Unbend the tabs at four locations indicated
by arrow until straight.
Remove the Tuner Amp Unit.
Tuner Amp Unit
Fig.2
39
KEH-P2800,P3850
7.3 EXPLANATION
7.3.1 BLOCK DIAGRAM
- KEH-P2800/X1M/UC
A
B
D
40
C
Antenna jack
Yellow
To terminal always supplied with power
regardless of ignition switch position.
Black
• Cords for this unit and those for
other units may be different colors
even if they have the same
function. When connecting this
unit to another unit, refer to the
supplied Installation manuals of
both units and connect cords that
have the same function.
Use this for connections
when you have the separately available amplifier.
With a 2 speaker system,
connect to the 2 speakers in the front or the rear.
Multi-CD player
(sold separately)
Red
CAUTION
This Unit
Rear output
To electric terminal controlled by ignition
switch (12 V DC) ON/OFF.
To vehicle (metal) body.
Connection Diagram
Fuse
Rear
Rear
Front
Left speaker
≠
≠
+
+
≠
+
+
Violet/black
Violet
Gray/black
Gray
Rear
Rear
Front
Right speaker
System remote
control
≠
Green/black
Green
White/black
White
Blue/white
≠
+
≠
+
To system control terminal
of the power amp or Autoantenna relay control terminal.
(Max. 300 mA 12 V DC)
Connecting cords with
RCA pin plugs
(sold separately)
Power amp
(sold separately)
KEH-P2800,P3850
8. OPERATIONS AND SPECIFICATIONS
41
42
+/– buttons
Programmable
button
Eject
button
Function button
AUDIO button
Detach
button
5/∞/2/3
buttons
CLOCK button
LOUD button
!/⁄ buttons
Buttons 1–6
BAND button
Cassette door
DISPLAY button
SOURCE
button
Key Finder
• The Tape function can be turned ON/OFF with the cassette tape remaining in this
product.
Note:
4. Remove the cassette tape.
3. Raise or lower the volume.
Same Time
2. Switch tape playback from side A to side B, or vice versa.
1. Insert the cassette tape.
Basic Operation of Cassette Player
Using the Cassette Player
KEH-P2800,P3850
FI = FII = FIII = AM
0.3 – 2 seconds
2 seconds or more
Seek Tuning
Manual Tuning (continuously)
• To select a weak broadcasting station that cannot be tuned in with the Seek
Tuning function, tune in with Manual Tuning.
Note:
0.3 seconds or less
Manual Tuning (step by step)
This product’s tuner lets you select the tuning by changing the length of the
time you press the button.
3. Tune the receiver to a higher or lower frequency.
2. Select the desired band.
Frequency appears on the display.
(“STEREO” indicator lights when a stereo station is selected.)
Each press
changes the Source ...
1. Select Tuner.
Basic Operation of Tuner
Tuner Operation
• You can cancel the Function Menu by pressing the BAND button.
• After selecting the Function Menu, if you do not perform an operation within
about 30 seconds, the Function Menu is automatically canceled.
Note:
Each press of the Function button selects the mode in the following order:
BSM = LOCAL
Each press
changes the Mode ...
• Select the desired mode in Function Menu.
In this menu you can select tuner functions.
Entering the Function Menu
Hold for 1 second
5. Turn the source OFF.
4. Raise or lower the volume.
Tuner Operation
KEH-P2800,P3850
43
44
• The multi-CD player may perform a preparatory operation, such as verifying the
presence of a disc or reading disc information, when the power is turned ON or a
new disc is selected for playback. “READY” is displayed.
• If the multi-CD player cannot operate properly, an error message such as
“ERROR 14” is displayed. Refer to the multi-CD player owner’s manual.
• The CD player is selected only when a CD is loaded.
• If the CD player cannot operate properly, an error message such as
“ERROR 14” is displayed. Refer to the CD player owner’s manual.
Besides Track Search convenience when searching for a desired track, this
unit also lets you fast-forward and reverse through tracks to find a desired
phrase or section of music.
Track Search and Fast-forward/Reverse
Hold for 1 second
4. Turn the source OFF.
3. Raise or lower the volume.
Hold for 1 second
5. Turn the source OFF.
4. Raise or lower the volume.
3. Reverse or advance track by track.
2. Select the desired disc.
Note:
Note:
2. Reverse or advance track by track.
Each press
changes the Source ...
1. Select the multi-CD player source.
1. Select the CD player source.
Each press
changes the Source ...
Basic Operation of Multi-CD Players
This product can control one or more multi-CD players.
Using Multi-CD Players
Basic Operation of CD Player
This product can control a CD player (one disc only).
Using CD Player (one disc only)
KEH-P2800,P3850
“BAL L9” – “BAL R9” is displayed as it moves from left to right.
3. Shift the balance to the left or right speaker, respectively.
• “FAD 00” is the proper setting when 2 speakers are in use.
Note:
“FAD F15” – “FAD R15” is displayed as it moves from front to rear.
2. Shift the balance progressively to the front or rear speakers.
After adjustment use the BAND button to return to the normal display.
1. Select the Fader/Balance mode.
This function allows you to select a Fader/Balance setting that provides
ideal listening conditions in all occupied seats.
Balance Adjustment
Each press of the AUDIO button selects the mode in the following order:
Fader/Balance = Bass = Treble = Loudness
When audio modes are selected for adjustment, the setting returns to the
normal display after 30 seconds.
Each press
changes the Mode ...
• Select the mode you want to adjust.
Selecting the Mode
Audio Adjustment
• You can also switch the Loudness function ON/OFF in the Audio Adjustment
Menu.
Note:
• Switch the Loudness function ON or OFF.
The Loudness function compensates for deficiencies in the low and high
sound ranges at low volume.
Loudness Adjustment
3. Repeat steps 1 – 2 above for the other Bass or Treble
Adjustment mode.
The display shows “+6” – “–6”.
2. Increase or decrease the intensity of the bass or treble,
whichever is selected.
After adjustment use the BAND button to return to the normal display.
1. Select “Bass Adjustment mode” or “Treble Adjustment mode”.
This product is equipped with two tone adjustment modes, the Bass
Adjustment and Treble Adjustment modes.
Bass/Treble Adjustment
“LOUD”
KEH-P2800,P3850
45
Continuous power output is 17 W per channel min. into 4
ohms. both channels driven 50 to 15,000 Hz with no more
than 5% THD.
Maximum power output ...................................... 40 W × 4
Load impedance .......................... 4 Ω (4 – 8 Ω allowable)
Preout maximum output level/output impedance
.................................................................. 2.2 V/1 kΩ
Tone controls
(Bass) .............................................. ±12 dB (100 Hz)
(Treble) ............................................ ±12 dB (10 kHz)
Loudness contour ........ +10 dB (100 Hz), +7 dB (10 kHz)
(volume: –30 dB)
Amplifier
Tape ........................ Compact cassette tape (C-30 – C-90)
Tape speed ...... 4.76 cm/sec.(+0.14 cm/sec.,-0.05cm/sec.)
Fast forward/rewinding time ...... Approx. 90 sec. for C-60
Wow & flutter .......................................... 0.13% (WRMS)
Frequency response ...................... 40 – 14,000 Hz (±3 dB)
Stereo separation ...................................................... 45 dB
Signal-to-noise ratio .................... 52 dB (IHF-A network)
Power source .......... 14.4 V DC (10.8 – 15.1 V allowable)
Grounding system ........................................ Negative type
Max. current consumption ........................................ 8.5 A
Dimensions
(DIN) (chassis) ...... 178 (W) × 50 (H) × 150 (D) mm
[7 (W) × 2 (H) × 5-7/8 (D) in.]
(nose) ............ 188 (W) × 58 (H) × 19 (D) mm
[7-3/8 (W) × 2-1/4 (H) × 3/4 (D) in.]
(D) (chassis) ...... 178 (W) × 50 (H) × 155 (D) mm
[7 (W) × 2 (H) × 6-1/8 (D) in.]
(nose) ............ 170 (W) × 48 (H) × 14 (D) mm
[6-3/4 (W) × 1-7/8 (H) × 1/2 (D) in.]
Weight ........................................................ 1.2 kg (2.6 lbs)
• Specifications and the design are subject to
possible modification without notice due to
improvements.
Note:
Frequency range ...................................... 530 – 1,710 kHz
Usable sensitivity .............................. 18 µV (S/N: 20 dB)
Selectivity ................................................................ 50 dB
AM tuner
Frequency range .................................... 87.9 – 107.9 MHz
Usable sensitivity
.................. 11 dBf (1.0 µV/75 Ω, mono, S/N: 30 dB)
50 dB quieting sensitivity .... 16 dBf (1.7 µV/75 Ω, mono)
Signal-to-noise ratio ...................... 70 dB (IHF-A network)
Distortion .......................... 0.3% (at 65 dBf, 1 kHz, stereo)
Frequency response ...................... 30 – 15,000 Hz (±3 dB)
Stereo separation .......................... 40 dB (at 65 dBf, 1 kHz)
Selectivity .................................................... 70 dB (2ACA)
Three-signal intermodulation
(desire signal level) .................. 30 dBf (two undesire
signal level: 100 dBf)
FM tuner
Cassette player
General
Specifications (KEH-P2800/X1M/UC)
Continuous power output is 17 W per channel min. into 4
ohms. both channels driven 50 to 15,000 Hz with no more
than 5% THD.
Maximum power output ...................................... 40 W × 4
Continuous power output .................................... 17 W × 4
(1% dist. at 1 kHz)
Load impedance .......................... 4 Ω (4 – 8 Ω allowable)
Preout maximum output level/output impedance
.................................................................. 2.2 V/1 kΩ
Tone controls
(Bass) ...................................... + 8 - - 16 dB (100 Hz)
(Treble) ............................................ ±12 dB (10 kHz)
Loudness contour ........ +10 dB (100 Hz), +7 dB (10 kHz)
(volume: –30 dB)
Amplifier
Power source .......... 14.4 V DC (10.8 – 15.1 V allowable)
Grounding system ........................................ Negative type
Max. current consumption ........................................ 8.5 A
Dimensions
(DIN) (chassis) ...... 178 (W) × 50 (H) × 150 (D) mm
(nose) ............ 188 (W) × 58 (H) × 19 (D) mm
(D) (chassis) ...... 178 (W) × 50 (H) × 155 (D) mm
(nose) ............ 170 (W) × 48 (H) × 14 (D) mm
Weight ...................................................................... 1.2 kg
General
• Specifications and the design are subject to
possible modification without notice due to
improvements.
Note:
Frequency range ........................ 531 – 1,602 kHz (9 kHz)
530 - 1,710kHz (10 kHz)
Usable sensitivity .............................. 18 µV (S/N: 20 dB)
Selectivity .................................................. 50 dB (±9 kHz)
50dB (±10 kHz)
AM tuner
Frequency range ...................................... 87.5 – 108 MHz
Usable sensitivity
.................. 11 dBf (1.0 µV/75 Ω, mono, S/N: 30 dB)
50 dB quieting sensitivity .... 16 dBf (1.7 µV/75 Ω, mono)
Signal-to-noise ratio ...................... 70 dB (IEC-A network)
Distortion .......................... 0.3% (at 65 dBf, 1 kHz, stereo)
Frequency response ...................... 30 – 15,000 Hz (±3 dB)
Stereo separation .......................... 40 dB (at 65 dBf, 1 kHz)
FM tuner
Tape ........................ Compact cassette tape (C-30 – C-90)
Tape speed ...... 4.76 cm/sec.(+0.14 cm/sec.,-0.05cm/sec.)
Fast forward/rewinding time ...... Approx. 90 sec. for C-60
Wow & flutter .......................................... 0.13% (WRMS)
Frequency response ...................... 40 – 14,000 Hz (±3 dB)
Stereo separation ...................................................... 45 dB
Signal-to-noise ratio .................... 52 dB (IHF-A network)
Cassette player
Specifications (KEH-P3850/X1M/ES)
KEH-P2800,P3850