Pioneer KEH-P4020R User manual

PIONEER CORPORATION 4-1, Meguro 1-Chome, Meguro-ku, Tokyo 153-8654, Japan
PIONEER ELECTRONICS (USA)INC. P.O.Box 1760, Long Beach, CA 90801-1760 U.S.A.
PIONEER EUROPE NV Haven 1087 Keetberglaan 1, 9120 Melsele, Belgium
PIONEER ELECTRONICS ASIACENTRE PTE.LTD. 253 Alexandra Road, #04-01, Singapore 159936
PIONEER CORPORATION 2001
ORDER NO
CRT2764
K-ZZT. NOV. 2001 Printed in Japan
1. SAFETY INFORMATION 2
2. EXPLODED VIEWS AND PARTS LIST 2
3. BLOCK DIAGRAM AND SCHEMATIC DIAGRAM 8
4. PCB CONNECTION DIAGRAM 18
5. ELECTRICAL PARTS LIST 27
6.ADJUSTMENT 32
7. GENERAL INFORMATION 33
7.1 DIAGNOSIS 33
7.1.1 DISASSEMBLY 33
7.1.2 CONNECTOR FUNCTION DESCRIPTION 34
7.2 PARTS 35
7.2.1 IC 35
7.2.2 DISPLAY 41
7.3 OPERATIONAL FLOW CHART 42
8. OPERATIONS AND SPECIFICATIONS 43
CONTENTS
MULTI-CD CONTROL HIGH POWER CASSETTE PLAYER WITH RDS TUNER
-This service manual should be used together with the following manual(s):
Model No. Order No. Mech. Module Remarks
CX-1011 CRT2406 3L Cassette Mech. Module:Mech.Description, Disassembly, Adjustment
NOTE:
- 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.

2
2. EXPLODED VIEWS AND PARTS LIST
2.1 PACKING
1. SAFETY INFORMATION
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.

NOTE
- Parts marked by “*” are generally unavailable because they are not in our Master Spare Parts List.
3
Mark No. Description Part No. Mark No. Description Part No.
1 Carton CZH5587
2 Owner's Manual CZR2950
3 Installation Manual CZR2952
* 4 Warranty Card CRY1157
* 5 Passport CRY1013
6 Case Assy CXB3520
7 Cord Assy CZD2977
8 Protector CZH5591
9 Protector CZH5592
10 Polyethylene Bag CZE2903
11 Owner's Manual CZR2951
12 Accessory Assy CEA3062
13 Bush CNV3930
14 Screw CBA1002
15 Handle CNC5395
16 Holder CNC9450
17 Screw BPZ20P060FZK
* 18 Polyethylene Bag E36-615
19 Contain Box CZH5588
KEH-P4023R/XM/EW
Mark No. Description Part No. Mark No. Description Part No.
1 Carton CZH5589
2 Owner's Manual CZR2950
3 Installation Manual CZR2952
* 4 Warranty Card CRY1157
* 5 Passport CRY1013
6 Case Assy CXB3520
7 Cord Assy CZD2977
8 Protector CZH5591
9 Protector CZH5592
10 Polyethylene Bag CZE2903
11 Owner's Manual CZR2951
12 Accessory Assy CEA3062
13 Bush CNV3930
14 Screw CBA1002
15 Handle CNC5395
16 Holder CNC9450
17 Screw BPZ20P060FZK
* 18 Polyethylene Bag E36-615
19 Contain Box CZH5590
Owner's Manual,Installation Manual
Part No.
CZR2950
CZR2951
CZR2952
English, Spanish, German
French, Italian, Dutch
English, Spanish, German, French, Italian, Dutch
Language
- PACKING SECTION PARTS LIST
KEH-P4020R/XM/EW

4
2.2 EXTERIOR

5
1 Case CZN6794
* 2 Label CZA5543
* 3 Grille Unit
See Contrast table(2)
4 Cover See Contrast table(2)
5 Holder CNV6506
6 Spring CBH2431
7 Spring CBH2430
8 Holder CNV6505
9 Screw BPZ20P100FZK
10 Keyboard Unit
See Contrast table(2)
11 Connector(CN900) CZK2948
12 Sheet CZN6808
13 Rubber CZN6806
14 Contact CZN6807
15 Lighting Conductor CZN6809
16 Light Plate CZN6810
17 LCD(LCD900) CZA5561
18 Holder CZN6811
19 Grille Assy
See Contrast table(2)
20 Button(VOL) CZA5544
21 Button(LOCAL) CZA5550
22 Button(PRESET) CZA5551
23 Button(EQ) CZA5545
24 Button(BSM) CZA5549
25 Spring CZB2980
26 Button(RELEASE) CZA5552
27 Button(CROSS) CZA5548
28 Button(TA/AF) CZA5547
29 Sheet CZN6833
30 Plate Assy CZX5525
31 Plate Assy
See Contrast table(2)
32 Panel PCB Unit CZW5526
33 Connector(CN850) CZK2950
34 Connector(CN851) CZK2947
35 Holder CZN6799
36 Holder Unit CXB6357
37 Spring CZB2981
38 Door
See Contrast table(2)
39 Button(EJECT) CZA5553
40 Panel Assy
See Contrast table(2)
41 Screw IMS20P045FZK
42 Screw(M2x2) CBA1176
43 Damper Unit CXB5070
44 Washer CBF1039
45 Spring CBH2429
46 Arm CZN6827
47 Holder Unit CXB6356
48 Clutch Unit CXB6358
49 Washer CBF1038
50 Gear CNV6507
51 Spring CBH2428
52 Panel
See Contrast table(2)
53 Cassette Mechanism Module EXK4080
54 Screw BSZ26P060FMC
55 Tuner Amp Unit CZW5530
56 Screw BSZ26P100FMC
57 Heat Sink CZN6798
58 IC(IC500) PAL007A
59 Panel CZN6797
60 Transistor(Q607) 2SD2396
61 Screw BPZ26P100FZK
62 Screw ISS26P055FUC
63 Terminal(CN101) CKF1059
64 Connector(CN400) CKS3408
65 Choke Coil(L600) CTH1221
66 Fuse(10A) CEK1208
67 Connector(CN600) CZK2943
68 Pin Jack(CN350) CKB1041
69 Antenna Jack(CN100) CKX1056
70 Connector(CN800) CZK2949
71 Connector(CN200) CKS3568
72 Plate CZN6730
73 FM/AM Tuner Unit(TU100) CWE1562
74 Insulator CZN6801
75 Chassis Unit
See Contrast table(2)
76 Screw BMZ30P040FZK
77 Cord Assy CZD2977
* 78 Holder CNC9131
79 Cord Assy CZD2978
Mark No. Description Part No. Mark No. Description Part No.
(1)EXTERIOR SECTION PARTS LIST
KEH-P4020R/XM/EW,KEH-P4023R/XM/EW have the same cuntruction except for the following:
(2)CONTRAST TABLE
Mark No. Description
* 3 Grille Unit CZX5536 CZX5537
4 Cover CZN6804 CZN6805
10 Keyboard Unit CZW5531 CZW5532
19 Grille Assy CZX5530 CZX5531
31 Plate Assy CZX5524 CZX5532
38 Door CAT2109 CAT2108
40 Panel Assy CZX5519 CZX5520
52 Panel CNS6332 CNS6333
75 Chassis Unit CZX5516 CZX5517
KEH-P4020R/XM/EW KEH-P4023R/XM/EW
Part No.

6
2.3 CASSETTE MECHANISM MODULE

7
- CASSETTE MECHANISM MODULE SECTION PARTS LIST
Mark No. Description Part No. Mark No. Description Part No.
1 Screw BSZ20P040FMC
2 Washer CBF1037
3 Washer CBG1003
4 Screw EBA1028
5 Screw CBA1037
6 Spring EBH1653
7 Spring EBH1624
8 Spring EBH1641
9 Spring EBH1626
10 Spring EBH1627
11 Spring EBH1649
12 Cord EDD1024
13 Photo-reflector(Q101) EGN1004
14 Arm ENC1526
15 Lever ENC1544
16 Lever ENC1543
17 Arm ENC1532
18 Frame ENC1533
19 Holder ENC1534
20 Gear ENC1535
21 Arm ENC1550
22 Roller ENR1040
23 Belt ENT1027
24 Collar ENV1508
25 Arm ENV1539
26 Arm ENV1540
27 Gear ENV1569
28 Gear ENV1547
29 Gear ENV1560
30 Worm Wheel ENV1566
31 Lever ENV1551
32 Flywheel ENV1554
33 PCB ENP1196
34 Switch(S101,102) ESG1007
35 Deck Unit EWM1042
36 Plug(CN251) CKS3540
37 Gathering PCB ENX1064
38 Motor Unit(M1) EXA1621
39 Motor EXM1028
40 Head Assy(HD1) EXA1589
41 Motor Unit(M2) EXA1580
42 Screw BMZ20P022FMC
43 Bracket ENC1528
44 Chassis Unit EXA1637
45 Pinch Holder Unit EXA1584
46 Pinch Roller ENV1518
47 Pinch Holder Unit EXA1583
48 Pinch Roller ENV1518
49 Reel Unit EXA1625
50 Head Base Unit EXA1611
51 Lever Unit EXA1631
52 Gear Unit EXA1632
53 Motor Unit(Service) EXX1055
54 Washer HBF-179
55 •••••
56 •••••
57 Sensor Unit EWM1044

8
3. BLOCK DIAGRAM AND SCHEMATIC DIAGRAM
3.1 BLOCK DIAGRAM
1234
1234
D
C
B
A

9
5678
5678
D
C
B
A

10
3.2 OVERALL CONNECTION DIAGRAM
1234
1234
D
C
B
A

11
5678
5678
D
C
B
A

12
3.3 KEYBOARD UNIT
1234
1234
D
C
B
A

13
5678
5678
D
C
B
A

14
3.4 PANEL PCB UNIT
1234
1234
D
C
B
A

15

16
3.5 CASSETTE MECHANISM MODULE
DECK UNIT
MUTE
HA12229F
11
12
13
14
15
16
17
18
19
20
40
39
38
37
36
35
34
33
32
31
30
29 28 27
26 25
24
23
22 21
1
2 3 4
5 6
7
8
9 10
C253 390P
C251
C256
R01
C
R404 270
R01
C404
910
R403
3R3K
C255
R01
C272 R1
C401
3900P
R285 0R0
HD1
HEAD ASSY
EXA1589
TEST TAPE
NCT-150
(400Hz, 200nWb/m)
RL
RR
FR
FL
C302
R1
C301
R1
Fwd-R
Fwd-L
Rev-R
Rev-L
NFI(R)
Vref1
RIN(L)
NC
RIN(R)
GND
FIN(R)
Vref2
FIN(L)
NFI(L)
M-OUT(L)
EQOUT(L)
Vref4 TAI(L) BIAS
NC
NC
MSGV(S)
MUTE
120/70
ser/REP
f/R
MSDET
MSI
MAOUT
MSGV(R)
MOUT(R)
EQOUT(R)
Vref3
TAI(R)
RIP
PBOUT(R)
NC
NC
NC
CN252
CN251
EQ AMP
IC251
390P C252
390P
C254 390P
PBOUT(L)
NC
VCC
MSOUT
NC
R402
R33
C402
15K
R401
18K
R271
C271
1/50
N-L
R-R
Vref
16K
R303
16K
R301
16K
R302
16K
R304
-8.24dBs±4dB
D
ACN200
1234
1234
D
C
B
A

17
SENSOR UNIT
C405 R033
70K
C354
R01
R362
300
C351
R22
M1 MOTOR UNIT
(MAIN MOTOR)
EXA1621
S101 LOAD ESG1007
S102 ESG1007
MODE
REEL SENSE
Q101
EGN1004
M2
MOTOR UNIT
(SUB MOTOR)
EXA1580
RSB
GND
RS
mtl
MCS
load
CN255 CN253
CN256
CN254
MOTOR
DRIVER
IC351 BA6923FP
C403
R022
TE
Vcc2
15
16
17
18
19
20
21
22
23
24
25
26
27
28
14
13
12
11
10
9
8
7
6
5
4
3
2
1
OUT1
NC
OUT2
NC
PGND
TE
GND
TAB
PSO3
PSO2
PSO1
SC2
SC1
CM
CE
NC
NC
NC
MM
NC
NC
NC
TAB
VCC1
VCC2
PSB
PSI1
PSI2
PSI3
C
SM2
SM1
MCS
C353
R01
C355
R1
C352
4700P
GND
RS
RSB
MTL
LOAD
SWITCHES:
SENSOR UNIT
S101:LOAD SWITCH..........EJECT-PLAY
S102:MODE SWITCH............ON-OFF
The underlined indicates the switch position.
E
L102
L101
5678
5678
D
C
B
A

4. PCB CONNECTION DIAGRAM
4.1 TUNER AMP UNIT
18
Capacitor
Connector
P.C.Board Chip Part
SIDE A
SIDE B
NOTE FOR PCB DIAGRAMS
1. The parts mounted on this PCB
include all necessary parts for sev-
eral destination.
For further information for respec-
tive destinations, be sure to check
with the schematic diagram.
2. Viewpoint of PCB diagrams
1234
1234
D
C
B
A
TEL IN

19
SIDE A
FRONT
5678
5678
D
C
B
A

20
FRONT
1234
1234
D
C
B
A