PIONEER KEHP490 Service Manual

PIONEER KEHP490 Service Manual
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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
Available language versions: English
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Sample pages

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

Cassette Mech. Module : Mechanism Description

Disassembly ,Adjustment

KEH-P490/X1M/UC

CRT2398

KEH-P4900/X1M/UC

CRT2398

KEH-P4950/X1M/ES

CRT2398

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

Cassette Mech. Module : Mechanism Description

Disassembly ,Adjustment

KEH-P490/X1M/UC

CRT2398

KEH-P4900/X1M/UC

CRT2398

KEH-P4950/X1M/ES

CRT2398

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

Carton

CHG3893

CHG3905

Contain Box

CHL3893

CHL3905

Protector

CHP2244

CHP2252

Protector

CHP2243

CHP2251

Part No.

Mark

No.

Description

KEH-P4900/X1M/UC

KEH-P4900/X1N/UC

Carton

CHG3889

CHG3902

Contain Box

CHL3889

CHL3902

Protector

CHP2244

CHP2252

Protector

CHP2243

CHP2251

Part No.

Mark

No.

Description

KEH-P4950/X1M/ES

KEH-P4950/X1N/ES

Carton

CHG3890

CHG3903

Contain Box

CHL3890

CHL3903

Protector

CHP2244

CHP2252

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

Holder Unit

CXB2687

CNC6798(Holder)

Cassette Mechanism Module

EXK4000

EXK4005

KEH-P490,P4900,P4950

IC,Q

IC251

Q351

Q352

ADJ

VR302

VR301

IC253

CN252

CN254

CN253

CN255

HEAD ASSY

CN256

µs SW

LOAD SW

MODE SW

CN256

EGN1

REEL SENSE

PCB CONNECTION DIAGRAM

CASSETTE MECHANISM MODULE

A CN602

D CN253

DECK UNIT

D DECK UNIT

E REEL SENSE UNIT

SIDE A

SIDE B

KEH-P490,P4900,P4950

234

DECK UNIT

MUTE

CXA2559Q

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

R301

18K

R273

R274

R271

R272

R290

C403

R403 82

C402

3900P

C401

R33

R402

R401

4R7K

R323

0R0

R257

C255

R01

C272 R1

C313

100P

R286

0R0

R285

0R0

HD1

HEAD ASSY

EXA1592

TEST TAPE

NCT-150

(400Hz, 200nWb/m)

C302

C301

R304

R302

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

KEH-P490,P4900,P4950

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

R352

R353

R354

R373

0R0

R355

270K

C352

3900P

R362

300

C351

R22

C353

R01

C354

R01

R374

0R0

C356

R01

C355

D352

1SS355

M1 MOTOR UNIT

(MAIN MOTOR)

EXA1491

S1 LOAD

ESG1007

MODE

REEL SENSE

EGN1

EGN1004

MOTOR UNIT

(SUB MOTOR)

EXA1580

RS3

RS2

RS1

SC2

SC1

TAB

VCC2

VCC

MCS

RRS

FRS

RSB

TAB

MS2

SM1

RSB

GND

mtl

MCS

load

CN255

CN253

CN256

CN254

MECHANISM

DRIVER

IC351

PA2020A

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