Pioneer KEH-P4020 - Radio / Cassette Player 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
CRT2763
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 40
7.3 OPERATIONAL FLOW CHART 41
8. OPERATIONS AND SPECIFICATIONS 42
CONTENTS
MULTI-CD CONTROL HIGH POWER CASSETTE PLAYER WITH FM/AM 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.
KEH-P4020 XM/UC
KEH-P4022 XM/EE
KEH-P4025 XM/ES

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

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 27
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
ACN300
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