PIONEER KEHP490 Service Manual

Cover page of PIONEER KEHP490 Service Manual

Service Manual for PIONEER KEHP490, downloadable as a PDF file.

We also have owner's manual to this model.

Manual details

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  • The manual has 61 pages
  • File size: 3.06 MB
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Sample pages

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PIONEER 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 CORPORATION 1999
K-ZZB. DEC. 1999 Printed in Japan
ORDER NO.
CRT2404
MULTI-CD CONTROL HIGH POWER CASSETTE PLAYER WITH FM/AM TUNER
KEH-P490
X1N/UC
Service
Manual
KEH-P4900
X1N/UC
KEH-P4950
X1N/ES
- 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 : Mechanism Description
Disassembly ,Adjustment
KEH-P490/X1M/UC
CRT2398
KEH-P4900/X1M/UC
CRT2398
KEH-P4950/X1M/ES
CRT2398
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PIONEER 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 CORPORATION 1999
K-ZZB. DEC. 1999 Printed in Japan
ORDER NO.
CRT2404
MULTI-CD CONTROL HIGH POWER CASSETTE PLAYER WITH FM/AM TUNER
KEH-P490
X1N/UC
Service
Manual
KEH-P4900
X1N/UC
KEH-P4950
X1N/ES
- 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 : Mechanism Description
Disassembly ,Adjustment
KEH-P490/X1M/UC
CRT2398
KEH-P4900/X1M/UC
CRT2398
KEH-P4950/X1M/ES
CRT2398
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2
KEH-P490,P4900,P4950
EXPLODED VIEWS AND PARTS LIST
PACKING (Page 2)
- PACKING SECTION PARTS LIST
Part No.
Mark
No.
Description
KEH-P490/X1M/UC
KEH-P490/X1N/UC
12
Carton
CHG3893
CHG3905
13
Contain Box
CHL3893
CHL3905
14
Protector
CHP2244
CHP2252
15
Protector
CHP2243
CHP2251
Part No.
Mark
No.
Description
KEH-P4900/X1M/UC
KEH-P4900/X1N/UC
12
Carton
CHG3889
CHG3902
13
Contain Box
CHL3889
CHL3902
14
Protector
CHP2244
CHP2252
15
Protector
CHP2243
CHP2251
Part No.
Mark
No.
Description
KEH-P4950/X1M/ES
KEH-P4950/X1N/ES
12
Carton
CHG3890
CHG3903
13
Contain Box
CHL3890
CHL3903
14
Protector
CHP2244
CHP2252
15
Protector
CHP2243
CHP2251
EXTERIOR (Page 4)
- EXTERIOR SECTION PARTS LIST
Part No.
KEH-P490/X1M/UC
KEH-P490/X1N/UC
KEH-P4900/X1M/UC
KEH-P4900/X1N/UC
Mark
No.
Description
KEH-P4950/X1M/ES
KEH-P4950/X1N/ES
29
Holder Unit
CXB2687
CNC6798(Holder)
68
Cassette Mechanism Module
EXK4000
EXK4005
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3
KEH-P490,P4900,P4950
1
2
3
4
A
B
C
D
1
2
3
4
IC,Q
IC251
Q351
Q352
ADJ
VR302
VR301
IC253
CN252
CN254
CN253
CN255
M1
M2
HEAD ASSY
CN256
21
22
1
2
3
4
5
6
S3
70
µs SW
S1
LOAD SW
S2
MODE SW
CN256
EGN1
REEL SENSE
PCB CONNECTION DIAGRAM
CASSETTE MECHANISM MODULE
D
A CN602
E
D CN253
DECK UNIT
D DECK UNIT
E REEL SENSE UNIT
SIDE A
SIDE B
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4
KEH-P490,P4900,P4950
A
1
234
B
C
D
12
34
DECK UNIT
MUTE
CXA2559Q
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
R256 220
R287
0R0
C273
22/16
R283 0R0
R284 0R0
R282 0R0
C253 330P
C254 330P
C252 330P
C251 330P
R281 0R0
R255 220
C256
R01
R258
1K
R301
18K
R273
1K
R274
1K
R271
1K
R272
1K
R290
0R
C403
R0
R403 82
C402
3900P
C401
R33
R402
R401
4R7K
R323
0R0
R257
1K
C255
R01
C272 R1
C313
100P
R286
0R0
R285
0R0
HD1
HEAD ASSY
EXA1592
TEST TAPE
NCT-150
(400Hz, 200nWb/m)
RL
RR
FR
FL
C302
R1
C301
R1
R304
R302
16K
16K
R305
16K
R303
16K
-6dBs(388mV)
±1dB
Fwd-R
Fwd-L
Rev-R
Rev-L
PBFB2
PBRIN2
PBGND
PBFIN2
VCT
PBREF
PBFIN1
PBGND
PBRIN1
PBFB1
PBTC1
PBOUT1
OUTREF1
TAPEIN1
VCC
LINEOUT1
TCH1
MSLPF
MSMODE
DRSW
TAPESW
MUTESW
MSOUT
MSTC
G1FB
G2FB
PBTC2
PBOUT2
OUTREF2
TAPEIN2
GND
DIREF
LINEOUT2
TCH2
MSSW
CN252
CN251
EQ AMP
IC251
D
background image
5
KEH-P490,P4900,P4950
5
6
7
8
A
B
C
D
5
6
7
8
REEL SENSE
PCB
SWITCHES:
REEL SENSE PCB
S1:LOAD SWITCH..........EJECT-PLAY
S2:MODE SWITCH............ON-OFF
The underlined indicates the switch position.
R290
0R0
C403
R068
R403 82K
C402
3900P
C401
R33
R402 18K
R401
4R7K
R351
1K
R352
1K
R353
1K
R354
1K
R373
0R0
R355
270K
C352
3900P
R362
300
C351
R22
C353
R01
C354
R01
R374
0R0
C356
R01
C355
R1
D352
1SS355
M1 MOTOR UNIT
(MAIN MOTOR)
EXA1491
S1 LOAD
ESG1007
S2
ESG1007
MODE
REEL SENSE
EGN1
EGN1004
M2
MOTOR UNIT
(SUB MOTOR)
EXA1580
RS3
RS2
RS1
SC2
SC1
TAB
MC
CE
VCC2
NC
VCC
MCS
RRS
FRS
RSB
C
TAB
MS2
NC
NC
MM
SM1
RSB
GND
RS
mtl
MCS
load
CN255
CN253
CN256
CN254
MECHANISM
DRIVER
IC351
PA2020A
E

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