PIONEER CDX-P2050 Service Manual

Page 1

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 1999

K-ZZY. MAY 1999 Printed in Japan

ORDER NO.

CRT2388

VOICE CONTROL MULTI-CD PLAYER

CDX-P2050VC X1N/UC

CONTENTS

1. SAFETY INFORMATION ............................................3

2. EXPLODED VIEWS AND PARTS LIST.......................4

3. BLOCK DIAGRAM AND SCHEMATIC DIAGRAM...12

4. PCB CONNECTION DIAGRAM ................................26

5. ELECTRICAL PARTS LIST ........................................34

6. ADJUSTMENT..........................................................39

7. GENERAL INFORMATION .......................................45

7.1 DIAGNOSIS ........................................................45

7.1.1 TEST MODE..............................................45

7.1.2 DISASSEMBLY .........................................54

7.2 IC .........................................................................56

8. OPERATIONS AND SPECIFICATIONS.....................65

- See the separate manual CX-938(CRT2357) for the CD mechanism description, disassembly and circuit description.

- The CD mechanism employed in this model is one of C8 series.

CDX-P2050VC/X1N/UC

CDX-P2050VN X1N/EW CDX-P2050VS X1N/EW

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CDX-P2050VC,P2050VN,P2050VS

- CD Player Service Precautions

1. For pickup unit(CXX1285) handling, please refer to"Disassembly"(See page 54). During replacement, handling precautions shall be taken to prevent an electrostatic discharge(protection by a short pin).

2. During disassembly, be sure to turn the power off since an internal IC might be destroyed when a connector is plugged or unplugged.

3. Please checking the grating after changing the pickup unit(see page 39) since these screws protects the mechanism during transport, be sure to affix it when it is transported for repair, etc.

Transport screw Attach to the original position before transporting the set.

Seal After removing the transport screw, cover the hole with the supplied seal.

Transportation of multi-CD Player

A transport screw has been attached to the set in order to protect it during transportation. After removing the transport screw, cover the hole with the supplied seal. Be sure to remove the transport screw before mounting the set. The removed transport screw should be retained in the accessory bag for use the next time the set is transported.

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CDX-P2050VC,P2050VN,P2050VS

1. SAFETY INFORMATION

1.1 CDX-P2050VC/X1N/UC

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.

ARNING

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

1.2 CDX-P2050VN/X1N/EW and CDX-P2050VS/X1N/EW

1. Safety Precautions for those who Service this Unit.

• Follow the adjustment steps (see pages 39 through 44)in the service manual when servicing this unit. When checking or adjusting the emitting power of the laser diode exercise caution in order to get safe, reliable results.

Caution:

1. During repair or tests, minimum distance of 13cm from the focus lens must be kept.

2. During repair or tests, do not view laser beam for 10 seconds or longer.

2. A “CLASS 1 LASER PRODUCT” label is affixed to the rear of the player.

3. The triangular label is attached to the mechanism unit frame.

4. Specifications of Laser Diode

Specifications of laser radiation fields to which human access is possible during service. Wavelength = 800 nanometers

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CDX-P2050VC,P2050VN,P2050VS

2. EXPLODED VIEWS AND PARTS LIST

2.1 PACKING

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CDX-P2050VC,P2050VN,P2050VS

Part No.

Mark No. Description CDX-P2050VC/X1N/UC CDX-P2050VN/X1N/EW CDX-P2050VS/X1N/EW

1 Screw Assy CEA1962 CEA1962 CEA1962 2 Screw CBA1295 CBA1295 CBA1295

* 3 Polyethylene Sheet CNM5158 CNM5158 CNM5158

4 Screw(M6X16) HMB60P500FMC HMB60P500FMC HMB60P500FMC 5 Screw HMF40P080FZK HMF40P080FZK HMF40P080FZK

6 Nut NF60FMC NF60FMC NF60FMC

* 7 Polyethylene Bag CEG1099 CEG1099 CEG1099

8 Polyethylene Bag CEG1185 CEG1026 CEG1026 9 Carton CHG3790 CHG3788 CHG3789

10 Contain Box CHL3790 CHL3788 CHL3789

11 Protector CHP2156 CHP2156 CHP2156 12 Protector CHP2157 CHP2157 CHP2157

13 Seal CNM5599 CNM5741 CNM5741 14-1 Owner’s Manual CRD3003 CRD3005 CRD3007 14-2 Installation Manual CRD3004 CRD3006 CRD3008

* 14-3 Caution Card CRP1205 CRP1205 CRP1205 * 14-4 Warranty Card Not used CRY1087 CRY1087

15 Magazine Assy CXB4028 CXB4028 CXB4028

16 Angle Assy CXB4345 CXB4344 CXB4344

17 Angle CNB2447 CNB2440 CNB2440

18 Controller Assy CXB3633 CXB3633 CXB3633

19 Cord CDE5831 CDE5830 CDE5831

* 20 Caution Card CRP1090 CRP1090 CRP1090 * 21 Caution Card CRP1196 CRP1196 CRP1196

22 Accessory Assy CEA2508 CEA2508 CEA2508

23 Cord CDE6004 CDE6004 CDE6004

24 Cord Clamper Assy CEA2072 CEA2072 CEA2072

25 Cord Clamper CNV2581 CNV2581 CNV2581

* 26 Polyethylene Bag E36-615 E36-615 E36-615 * 27 Polyethylene Bag CEG-238 CEG-238 CEG-238

28 Fastener(rough) CNM3709 CNM3709 CNM3709

29 Fastener(soft) CNM3710 CNM3710 CNM3710

30 Clamper CNV3751 CNV3751 CNV3751

31 Microphone Assy CPM1017 CPM1017 CPM1017

32 Cushion MEH1007 MEH1007 MEH1007

33 Clip Stand MNK1221 MNK1221 MNK1221

- Owner’s Manual

Model Part No. Language CDX-P2050VC/X1N/UC CRD3003 English, French CDX-P2050VN/X1N/EW CRD3005 English, French, German, Dutch CDX-P2050VS/X1N/EW CRD3007 English, Spanish, Italian, Portuguese(B)

- PACKING SECTION PARTS LIST

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.

- Installation Manual

Model Part No. Language CDX-P2050VC/X1N/UC CRD3004 English, French CDX-P2050VN/X1N/EW CRD3006 English, French, German, Dutch CDX-P2050VS/X1N/EW CRD3008 English, Spanish, Italian, Portuguese(B)

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CDX-P2050VC,P2050VN,P2050VS

2.2 EXTERIOR

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CDX-P2050VC,P2050VN,P2050VS

1 Screw BMZ26P040FMC 2 Screw BMZ30P040FZK 3 Button(EJECT) CAC6363 4 Screw(M4X4) CBA1353 5 Spring CBH1862

6 Connector CDE5525 7 Connector CDE6002 8 Cord

See Contrast table(2)

9 Controller Assy CXB3633

10 Cord CDE6004

11 Upper Case

See Contrast table(2)

12 Arm CNC8058 13 Insulator CNM6074 14 Panel CNS5218 15 Damper CNV5227

16 Power Unit CWM6365 17 Screw BMZ26P060FMC 18 Plug(CN991) CKS-460 19 Connector(CN921) CKS3407 20 Connector(CN911) CKS2222

21 Holder CNC8059 22 Holder CNC8060 23 Lower Case Unit

See Contrast table(2)

24 Grille Unit See Contrast table(2) 25 Screw BPZ20P080FMC

26 Door

See Contrast table(2)

27 Door See Contrast table(2) 28 Holder CNC8141 29 Lever

See Contrast table(2)

30 Connector(CN922) CKS3599

31 ••••• 32 ••••• 33 CD Mechanism Module CXK4920 34 Screw IMS20P035FZK 35 Screw IMS26P040FMC

36 Transistor(Q910) 2SD2396 37 Cord Assy CDE5992 38 Case

See Contrast table(2)

39 Screw BSZ30P040FZK 40 Voice Unit

See Contrast table(2)

41 Connector(CN901) CKS3763 42 Connector(CN303) CKS3585 43 Screw BMZ26P060FMC 44 IC(IC71) NJM7805FA 45 Holder CNC8209

46 Holder CNC8422 47 Clamper CEF1008 48 Sheet CNM6531 49 Cord Assy MDE1099 50

Vibration Prevention Material MED1008

51 Connector(CN1) MKP1029 52 Button A MNK1294 53 Button B MNK1295 54 Case MNK1298 55 PCB Assy MWM1073

56 Grille Assy MXX1105 57 Screw PPZ26P080FZK 58 Cushion TED1366

(1) EXTERIOR SECTION PARTS LIST

Mark No. Description Part No. Mark No. Description Part No.

Part No.

Mark No. Symbol and Description CDX-P2050VC/X1N/UC CDX-P2050VN/X1N/EW CDX-P2050VS/X1N/EW

8 Cord CDE5831 CDE5830 CDE5831 11 Upper Case CNB2446 CNB2445 CNB2445 23 Lower Case Unit CXB3398 CXB3397 CXB3397 24 Grille Unit CXB4394 CXB4396 CXB4395 26 Door CAT2023 CAT2008 CAT2008

27 Door CAT2024 CAT2009 CAT2009 29 Lever CNS5393 CNS5357 CNS5357 38 Case CNB2493 CNB2441 CNB2441 40 Voice Unit CWM6367 CWM6367 CWM6366

(2) CONTRAST TABLE CDX-P2050VC/X1N/UC, CDX-P2050VN/X1N/EW and CDX-P2050VS/X1N/EW are constructed the same except for the following:

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CDX-P2050VC,P2050VN,P2050VS

2.3 CD MECHANISM MODULE

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CDX-P2050VC,P2050VN,P2050VS

1 Connector CDE6069 2 CD Core Unit(C8) CWX2277 3 Connector(CN701) CKS1953 4 Connector(CN101) CKS2272 5 Screw BMZ20P025FMC

6 Screw CBA1037 7 Screw CBA1041 8 Screw CBA1176 9 Screw CBA1362

10 Screw CBA1387

11 Screw CBA1493 12 Screw CBA1476 13 Screw CBA1486 14 Washer CBF1038 15 Spring CBH1867

16 Spring CBH2172 17 Spring CBH2173 18 Spring CBH2174 19 Spring CBH2175 20 Spring CBH2177

21 Spring CBH2178 22 Spring CBH2179 23 Spring CBL1390 24 Spring CBL1392 25 Spring CBL1404

26 Short Pin CBL1239 27 Volume(VR801) CCW1024 28 Screw CBA1491 29 Shaft CLA3304 30 Arm CNC7901

31 Lever CNC7905 32 Lever CNC7906 33 Arm CNC7908 34 Arm CNC7909 35 Holder CNC7911

36 Holder CNC7912 37 Lever CNC7919 38 Stopper CNC7920 39 Frame CNC7921 40 Lever CNC7922

41 Bracket CNC7923 42 Lever CNC7924 43 Frame CNC7927 44 Frame CNC7928 45 Bracket CNC8355

46 Plate CNC8375 47 Cover CNC8434 48 Sheet CNM6009 49 Spacer CNM6146 50 Sheet CNM6296

51 PCB CNP5227 52 PCB CNP5228 53 Ball CNR1189 54 Gear CNR1531 55 Belt CNT1086

56 Gear CNV5472 57 Gear CNV5473 58 Rail CNV5920 59 Lever CNV5475 60 Gear CNV5477

61 Arm CNV5478 62 Holder CNV5480 63 Guide CNV5921 64 Guide CNV5922 65 Holder CNV5483

66 Holder CNV5484 67 Clamper CNV5485 68 Gear CNV5486 69 Gear CNV5562 70 Holder CNV5563

71 Stopper CNV5564 72 Lighting Conductor CNV5785 73 Mechanism PCB CWX2303 74 Connector(CN801) CKS1965 75 Connector(CN802) CKS3486

76 Damper Unit CXA7159 77 Chassis Unit CXB2850 78 ••••• 79 Chassis Unit CXB2851 80 Arm Unit CXB2855

81 Screw Unit CXB2857 82 ••••• 83 Frame Unit CXB4427 84 Magazine Holder Unit CXB4460 85

Motor Unit(M851)(SPINDLE) CXB3003

Motor Unit(M854)(CARRIAGE) CXB3004

87 Screw JFZ20P025FMC 88 Motor Unit(M853)(TRAY) CXB4421 89 Screw JFZ20P025FMC 90 Motor Unit(M852)(ELV) CXB3006

Mark No. Description Part No. Mark No. Description Part No.

- CD MECHANISM MODULE SECTION PARTS LIST

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CDX-P2050VC,P2050VN,P2050VS

91 Screw JFZ20P025FMC 92 Lever Unit CXB3938 93 ••••• 94 Gear Unit CXB4338 95 Screw JGZ17P025FZK

96 Pickup Unit(Service) CXX1285 97 ••••• 98 ••••• 99 Screw IMS26P040FMC

100 Screw JFZ20P025FNI

101 Photo-transistor(Q851) PT4800 102

Spring Switch(S851,S853) CSN1051

103 LED(D851) CN504-2 104 Spring Switch(S852) CSN1052

Mark No. Description Part No.

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CDX-P2050VC,P2050VN,P2050VS

2.4 MAGAZINE ASSY

1 Magazine Assy CXB4028 2 Tray CNV5341 3 Label CRW1396

- MAGAZINE ASSY SECTION PARTS LIST

Mark No. Description Part No.

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CDX-P2050VC,P2050VN,P2050VS

1234

3. BLOCK DIAGRAM AND SCHEMATIC DIAGRAM

3.1 BLOCK DIAGRAM

CD CORE UNIT

MECHANISM PCB

PICKUP UNIT (SERVICE)

SWITCH PCB

MOTOR PCB

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CDX-P2050VC,P2050VN,P2050VS

POWER UNIT

CN303

Page 14

CDX-P2050VC,P2050VN,P2050VS

1234

VOICE UNIT

PCB ASSY

Page 15

CDX-P2050VC,P2050VN,P2050VS

CN922

Page 16

CDX-P2050VC,P2050VN,P2050VS

1234

3.2 OVERALL CONNECTION DIAGRAM

Note: When ordering service parts, be sure to refer to “EXPLODED VIEWS AND PARTS LIST” or “ELECTRICAL

PARTS LIST”.

M854

CXB3004

M851

CXB3003

M852

CXB3006

M853

CXB4421

CN801

CN802

MECHANISM PCB

SWITCH PCB

MOTOR PCB

PICKUP UNIT(SERVICE) CXX1285

MOTOR DRIVER

4CH SERVO DRIVER

RF-AMP,SERVO,DSP

CN101

10K

1/2

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CDX-P2050VC,P2050VN,P2050VS

CD CORE UNIT

RIVER

2/2

1/2

Page 18

CDX-P2050VC,P2050VN,P2050VS

1234

2/2

1/2

SYSTEM CONTROLLER

PD5512B

Page 19

CDX-P2050VC,P2050VN,P2050VS

2/2

R769(1/8W)

R768(1/8W)

POWER UNIT

IP-BUS DRIVER

SRAM

CN701

CN911

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CDX-P2050VC,P2050VN,P2050VS

1 RFI 0.5V/div. 0.5µs/div.

Normal mode: play

1 CH1: RFI 1V/div. 2 CH2: MIRR 5V/div.

Test mode: Tracking open

0.5ms/div.

1 CH1: RFI 1V/div. 2 CH2: MIRR 5V/div.

Normal mode: The defect part

passes 800µm

0.5ms/div.

3 CH1: FD 0.5V/div. 4 CH2: FOR 2V/div.

Test mode: No disc, Focus close

0.2s/div.

3 CH1: FD 0.5V/div. 5 CH2: FOK 2V/div.

Normal mode: Focus close

0.2s/div.

6 CH1: FE 0.5V/div. 7 CH2: XSI 2V/div.

Normal mode: Focus close

1ms/div.

REFO

→

8 CH1: TE 0.5V/div. 9 CH2: TD 0.5V/div.

Test mode: 32 tracks jump (REV)

0.5ms/div.

8 CH1: TE 0.5V/div. 9 CH2: TD 0.5V/div.

Test mode: Single jump (REV)

0.5ms/div.

8 CH1: TE 0.5V/div. 9 CH2: TD 0.5V/div.

Test mode: 100 tracks jump (REV)

5ms/div.

6 CH1: FE 0.1V/div. 3 CH2: FD 0.2V/div.

Normal mode: Play

20ms/div.

3 CH1: FD 0.5V/div. 0 CH2: MD 1V/div.

Normal mode: Focus close (12cm)

0.5s/div.

3 CH1: FD 0.5V/div. 0 CH2: MD 1V/div.

Normal mode: Focus close (8cm)

0.5s/div.

REFO

→

REFO

→

REFO

→

REFO

→

REFO

→

REFO

→

GND

→

REFO

→

REFO

→

REFO

→

REFO

→

REFO

→

REFO

→

REFO

→

REFO

→

REFO

→

REFO

→

REFO

→

REFO

→

- Waveforms

Note:1. The encircled numbers denote measuring pointes in the circuit diagram.

2. Reference voltage REFO:2.5V

REFO

→

REFO

→

REFO

→

REFO

→

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CDX-P2050VC,P2050VN,P2050VS

8 CH1: TE 0.2V/div. 9 CH2: TD 0.2V/div.

Normal mode: play

8 CH1: TE 0.5V/div. ! CH2: SD 0.5V/div.

TEST mode:100Tracks jump(FWD)

5ms/div.

0 MD 0.5V/div. 0.1s/div.

Normal mode: Play (12cm)

0 MD 1V/div. 10ms/div.

Long Search (12cm)

@ EFM 1V/div. 5µs/div.

Normal mode: Play

8 CH1: TE 1V/div. # CH2: TEC 1V/div.

Test mode: Focus close

Tracking open

2ms/div.

8 CH1: TE 0.5V/div. 6 CH2: FE 0.5V/div.

Normal mode:

AGC after focus close

0.2s/div.

20ms/div.

% SCKO 2V/div. 1µs/div.

Normal mode: Play

^ DOUT 2V/div. 10µs/div.

Normal mode: Play

& LRCK 2V/div. 20µs/div.

Normal mode: Play

* VD 5V/div. 50ms/div.

Normal mode: No disc

GND

→

REFO

→

REFO

→

GND

→

REFO

→

REFO

→

REFO

→

REFO

→

REFO

→

REFO

→

REFO

→

REFO

→

REFO

→

GND

→

REFO

→

GND

→

REFO

→

GND

→

REFO

→

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CDX-P2050VC,P2050VN,P2050VS

( CH1: R OUT 2V/div. ) CH2: L OUT 2V/div.

Normal mode: Play (1kHz 0dB)

6 CH1: FE 0.2V/div. 3 CH2: FD 0.5V/div.

Normal mode: During AGC

1ms/div.

8 CH1: TE 0.2V/div. 9 CH2: TD 0.5V/div.

Normal mode: During AGC

1 CH1: RFI 1V/div. ⁄ CH2: HOLD 5V/div.

Normal mode: The defect part passes

800µm(B.D)

500µs/div.

1ms/div.

0.5ms/div.

3 CH1: FD 1V/div. ⁄ CH2: HOLD 5V/div.

Normal mode: The defect part passes

800µm(B.D)

0.5ms/div.

9 CH1: TD 0.1V/div. ⁄ CH2: HOLD 5V/div.

Normal mode: The defect part passes

800µm(B.D)

0.5ms/div.

REFO

→

REFO

→

REFO

→

REFO

→

REFO

→

REFO

→

REFO

→

REFO

→

REFO

→

REFO

→

REFO

→

REFO

→

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CDX-P2050VC,P2050VN,P2050VS

3.3 POWER UNIT

220000/5R5

470/16

1.4mH

IC940

BA4560F

IC941

BA4560F

HZS4LL(C)

HZS6L(B1)

ERA15-02VH

CN701

CN303

POWER UNIT

CEK1018

CN911

Page 24

DSP BLOCK

SYSTEM BLOCK

15P

UDZ3R3(B)

UDZ4R7(B)

VOICE UNIT

PD6304B(VC,VN) PD6305B(VS)

CDX-P2050VC,P2050VN,P2050VS

1234

3.4 VOICE UNIT, PCB ASSY

Page 25

AUDIO BLOCK

POWER SUPPLY BLOCK

SP AMP

100000/5R5

470/16

and

ERA15-02VH

PCB ASSY

CN922

SW1

SW2

SW3

SW4

SW5

SW6

CN901

CN1

UDZ5R6(B)

CN303

CDX-P2050VC,P2050VN,P2050VS

Page 26

4. PCB CONNECTION DIAGRAM

4.1 CD CORE UNIT

M852 ELV

RERO

EPVO

EREF

IC,Q

ADJ

CDX-P2050VC,P2050VN,P2050VS

1234

SIDE A

CD CORE 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.

Capacitor

Connector

P.C.Board

Chip Part

SIDE A

SIDE B

2. Viewpoint of PCB diagrams

CN911

CN801

Page 27

EJECT

RESET

MAG

IC, Q

CDX-P2050VC,P2050VN,P2050VS

SIDE B

CD CORE UNIT

Page 28

913

CDX-P2050VC,P2050VN,P2050VS

1234

SIDE A

POWER UNIT

CN701

CN303

4.2 POWER UNIT

IP-BUS

CORD

Page 29

CDX-P2050VC,P2050VN,P2050VS

POWER UNIT

SIDE B

Page 30

CDX-P2050VC,P2050VN,P2050VS

1234

4.4 SWITCH PCB

SWITCH PCB

4.3 MECHANISM PCB

CN101

MECHANISM PCB

M854 CRG

M851 SPDL

HOME

TRP

DSP

D851

PICKUP UNIT (SERVICE)

Page 31

CDX-P2050VC,P2050VN,P2050VS

4.5 MOTOR PCB

MOTOR PCB

4.6 PCB ASSY

CN1

R4R5

234

CALL

VOL

SOURCE

AUDIO

SW1

SW2

SW3

SW4

SW6

SW5

PCB ASSY

CN901

Page 32

10 11

5 67

1 234

CN302

CN301

CN901

1015

30 35

IC23

IC22

RESET

CDX-P2050VC,P2050VN,P2050VS

1234

4.7 VOICE UNIT

VOICE UNIT

CN922

SIDE A

CN1

Page 33

CDX-P2050VC,P2050VN,P2050VS

VOICE UNIT

SIDE B

Page 34

CDX-P2050VC,P2050VN,P2050VS

Unit Number : CWX2277 Unit Name : CD Core Unit

MISCELLANEOUS

IC 201 IC UPD63710GC IC 202 IC BA05FP IC 301 IC BA5986FM IC 302 IC LB1836M IC 501 IC PD4501B

IC 601 IC PD0236AM IC 602 IC PE8001A1 IC 701 IC PD5512B IC 702 IC (SRM2B256SLTMX70) GGC1257 IC 703 IC HA12187FP

IC 704 IC PAJ002A IC 705 IC TC7SH32FU Q 101 Transistor 2SB1132 Q 701 Transistor DTA144EK Q 770 Transistor 2SB1184F5

Q 771 Transistor 2SC2412K D 201 Diode 1SR154-400 D 730 Diode 1SS356 D 770 Diode 1SS355 D 780 Diode 1SS356

L 601 Inductor LCTBR39K2125 X 201 Radiator 16.9344MHz CSS1463 X 701 Ceramic Resonator 10.00MHz CSS1476 S 801 Push Switch(EJECT) CSG1076 S 802 Push Switch(RESET) CSG1076

S 803 Spring Switch(MAG) CSN1044 VR 802 Semi-fixed 680Ω(B) CCP1337

RESISTORS

R 101 RS1/8S120J R 102 RS1/8S100J R 103 RS1/16S222J R 201 RS1/16S104J R 202 RS1/16S0R0J

R 203 RS1/16S0R0J R 204 RS1/16S0R0J R 205 RS1/16S103J R 206 RS1/16S393J R 207 RS1/16S182J

R 208 RS1/16S304J R 212 RS1/16S0R0J R 213 RS1/16S103J R 214 RS1/16S103J R 215 RS1/16S123J

R 216 RS1/16S273J R 217 RS1/16S273J R 252 RS1/16S0R0J R 253 RS1/16S681J R 254 RS1/16S681J

R 256 RS1/16S681J R 257 RS1/16S681J R 258 RS1/16S681J R 259 RS1/16S102J R 260 RS1/16S681J

R 298 RS1/16S681J R 301 RS1/16S103J R 302 RS1/16S153J R 303 RS1/16S103J R 304 RS1/16S153J

R 305 RS1/16S103J R 306 RS1/16S752J R 307 RS1/16S103J R 308 RS1/16S752J R 309 RA4C332J

R 311 RS1/16S102J R 501 RS1/16S102J R 601 RS1/16S102J R 602 RS1/16S102J R 603 RS1/16S0R0J

R 604 RA3C681J R 605 RS1/16S681J R 606 RS1/16S104J R 701 RS1/16S681J R 702 RS1/16S102J

R 703 RS1/16S222J R 704 RS1/16S104J R 705 RS1/16S104J R 706 RS1/16S681J R 708 RS1/16S0R0J

R 710 RS1/16S473J R 716 RS1/16S103J R 717 RS1/16S473J R 718 RS1/16S681J R 720 RS1/16S104J

R 721 RS1/16S222J R 722 RS1/16S222J R 724 RS1/16S222J R 725 RS1/16S222J R 726 RS1/16S104J

R 727 RS1/16S513J R 729 RS1/16S104J R 730 RS1/16S473J R 731 RS1/16S222J R 732 RS1/16S683J

R 733 RS1/16S222J R 734 RS1/16S473J R 735 RS1/16S222J R 736 RS1/16S103J R 737 RS1/16S433J

R 738 RS1/16S104J R 739 RS1/8S1R0J R 740 RS1/8S2R0J R 741 RS1/16S102J R 742 RS1/16S104J

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 Part No.

--- ------ ------------------------------------------ -------------------------

=====Circuit Symbol and No.===Part Name Part No.

--- ------ ------------------------------------------ -------------------------

Page 35

R 743 RS1/16S104J R 744 RS1/16S223J R 745 RS1/16S104J R 747 RS1/16S472J R 748 RS1/16S104J

R 750 RA4C473J R 751 RA4C473J R 752 RN1/16SE3602D R 753 RN1/16SE6801D R 754 RS1/16S221J

R 755 RS1/16S104J R 756 RS1/16S221J R 758 RS1/16S473J R 759 RS1/16S472J R 760 RS1/16S104J

R 761 RS1/16S104J R 768 RS1/8S100J R 769 RS1/8S100J R 801 RS1/10S221J R 802 RS1/10S271J

R 804 RS1/16S512J R 805 RS1/16S432J R 806 RS1/16S102J

CAPACITORS

C 101 CKSRYB102K50 C 102 CKSQYB104K25 C 103 CEV101M6R3 C 104 CEV470M6R3 C 105 CKSQYB334K16

C 106 CKSQYB334K16 C 107 CKSQYB334K16 C 201 CKSQYB104K25 C 202 CEV101M6R3 C 203 CKSQYB104K25

C 204 CKSRYB332K50 C 205 CKSQYB104K25 C 206 CKSRYB392K50 C 207 CKSQYB224K16 C 208 CCSRCH270J50

C 209 CCSRCJ3R0C50 C 210 CCSRCH221J50 C 211 CCSRCH101J50 C 212 CKSRYB682K50 C 213 CKSQYB104K25

C 214 CKSQYB104K25 C 215 CKSQYB104K25 C 216 CKSQYB104K25 C 217 CKSQYB104K25 C 218 CKSQYB104K25

C 219 CKSQYB104K25 C 220 CKSQYB104K25 C 253 CKSRYB471K50 C 271 CEV101M6R3 C 272 22µF/6.3V CCH1300

C 273 CKSQYB334K16 C 301 CEV101M10 C 302 CKSQYB224K16 C 501 CKSRYB104K16 C 502 CKSRYB471K50

C 601 CKSRYB104K16 C 602 CKSRYB104K16 C 603 CKSRYB104K16 C 604 CSZSR100M16 C 605 CKSRYB104K16

C 606 CKSRYB104K16 C 607 CEV101M6R3 C 608 CSZSR100M16 C 609 CCSRCH180J50 C 610 CCSRCH180J50

C 611 CKSRYB104K16 C 612 CCSRCH102J50 C 613 CCSRCH102J50 C 701 CKSRYB103K25 C 702 CKSQYB473K16

C 703 CKSQYB473K16 C 707 CKSRYB103K25 C 708 CKSQYB104K25 C 710 CKSRYB103K25 C 711 CKSRYB102K50

C 712 CKSRYB102K50 C 714 CKSQYB104K25 C 715 CSZST220M16 C 717 CKSRYB103K25 C 718 CKSRYB103K25

C 719 CKSRYB102K50 C 720 CKSRYB102K50 C 721 CKSRYB103K25 C 722 CKSRYB103K25 C 723 CKSRYB471K50

C 801 CKSRYB103K25 C 802 CKSQYB104K25 C 803 CKSRYB103K25

Unit Number : CWM6365 Unit Name : Power Unit

MISCELLANEOUS

IC 940 IC BA4560F IC 941 IC BA4560F Q 910 Transistor 2SD2396 Q 911 Transistor IMD2A Q 912 Transistor IMX1

Q 941 Transistor FMG12 Q 942 Transistor IMD2A D 901 Diode ERA15-02VH D 902 Diode ERA15-02VH D 910 Diode HZS6L(B1)

D 941 Diode MA152WA D 942 Diode HZS4LL(C) L 901 Choke Coil 1.4mH CTH1129

RESISTORS

R 901 RS1/10S204J R 902 RS1/10S104J R 910 RS1/8S431J R 911 RS1/10S681J R 912 RS1/8S101J

R 913 RS1/10S512J R 914 RS1/10S132J R 915 RD1/4PU151J R 921 RS1/10S101J R 922 RS1/10S101J

R 923 RS1/10S102J R 924 RS1/10S473J R 941 RS1/10S102J R 942 RS1/10S102J R 943 RS1/10S183J

R 944 RS1/10S183J R 945 RS1/10S222J R 946 RS1/10S562J R 947 RS1/10S472J R 948 RS1/10S472J

R 949 RS1/10S562J R 950 RS1/10S562J R 951 RS1/10S0R0J R 952 RS1/10S562J R 953 RS1/10S562J

CDX-P2050VC,P2050VN,P2050VS

=====Circuit Symbol and No.===Part Name Part No.

--- ------ ------------------------------------------ -------------------------

=====Circuit Symbol and No.===Part Name Part No.

--- ------ ------------------------------------------ -------------------------

Page 36

CDX-P2050VC,P2050VN,P2050VS

R 954 RS1/10S101J

CAPACITORS

C 901 CKSQYB104K50 C 902 470µF/16V CCH1183 C 903 CKSQYB223K25 C 904 470µF/16V CCH1183 C 906 0.22F/5.5V CCL1037

C 907 CCSQCH101J50 C 910 CKSQYB103K50 C 911 CKSQYB103K50 C 912 CEJA220M10 C 913 CKSQYB103K50

C 941 CEJA100M16 C 942 CEJA100M16 C 943 CEAL100M16 C 944 CEAL100M16 C 945 CEAL100M16

C 947 CEAL101M10 C 948 CKSQYB103K50 C 949 CKLSQB152K50 C 950 CKLSQB152K50 C 951 CCSQCH331J50

C 952 CCSQCH331J50 C 953 CEAL100M16

Unit Number : CWM6367(VC,VN)

: CWM6366(VS)

Unit Name : Voice Unit

MISCELLANEOUS

IC 11 IC NJM4558MD IC 12 IC NJM4558MD IC 21 IC AK2316 IC 22 IC (VC,VN model) PD6304B IC 22 IC (VS model) PD6305B

IC 23 IC

M5M51016BTP-70LL

IC 41 IC NJM4558MD IC 42 IC NJM2073D IC 61 IC HA12187FP IC 62 IC PE5041A

IC 71 IC NJM7805FA IC 82 IC S-80730ANDT Q 201 Transistor DTA114EK Q 203 Transistor DTC114TK Q 413 Transistor IMH11A

Q 711 Transistor 2SB1238 Q 712 Transistor DTC143EK Q 721 Transistor 2SD1859 Q 731 Transistor 2SD1859 Q 742 Transistor DTC143EK

Q 743 Transistor 2SB1238 Q 751 Transistor 2SB1238 Q 752 Transistor DTC143EK Q 801 Transistor DTC114TK Q 811 Transistor 2SC2412K

Q 821 Transistor 2SD1760F5 D 101 Diode UDZ3R3(B) D 141 Diode UDZ4R7(B) D 201 Chip Diode MA151WK D 702 Diode ERA15-02VH

D 711 Diode UDZ5R6(B) D 731 Diode HZS9L(C1) D 761 Diode HZ30P D 811 Diode HZS7L(C2) D 821 Diode ERA15-02VH

D 822 Diode HZS6L(C2) D 823 Diode 1SS356 D 824 Diode 1SS356 D 831 Diode 1SS356 L 101 Ferri-Inductor LAU101K

L 102 Inductor LCTBR47K2125 L 241 Inductor LCTBR47K2125 L 251 Inductor LCTBR47K2125 L 261 Inductor LCTBR47K2125 L 631 Inductor LCTBR47K2125

L 651 Inductor LCTBR47K2125 L 671 Inductor CTF1295 L 672 Inductor LCTBR47K2125 L 673 Inductor LCTBR47K2125 L 701 Choke Coil 1.4mH CTH1129

X 201 Crystal Resonator 12.288MHz CSS1378 X 631 Radiator 6.290MHz CSS1451 S 801 Switch(RESET) CSG1059 EF 701 EMI Filter CCG1003

RESISTORS

R 101 RS1/10S681J R 102 RS1/10S821J R 103 RS1/10S102J R 111 RS1/10S153J R 112 RS1/10S102J

R 113 RS1/10S103J R 121 RS1/10S682J R 122 RS1/10S124J R 123 RS1/10S152J R 131 RS1/10S272J

R 132 RS1/10S333J R 141 RS1/10S472J R 201 RA4C220J R 202 RA4C220J R 203 RA4C220J

R 204 RA4C220J R 205 RA4C220J R 206 RA4C220J R 207 RA4C220J R 208 RA4C220J

R 209 RA4C220J R 210 RS1/16S220J R 211 RS1/16S0R0J R 212 RS1/16S105J R 213 RS1/16S0R0J

R 217 RS1/16S220J R 220 RS1/16S472J R 221 RS1/16S472J R 222 RS1/16S472J R 223 RS1/16S472J

R 231 RA4C220J R 232 RA4C220J R 233 RA4C220J R 234 RA4C220J R 241 RS1/16S472J

R 242 RS1/16S472J R 243 RS1/16S472J R 251 RS1/16S0R0J R 271 RS1/10S472J R 272 RS1/10S472J

R 401 RS1/10S103J R 402 RS1/10S103J R 403 RS1/10S103J R 411 RS1/10S473J R 412 RS1/10S473J

=====Circuit Symbol and No.===Part Name Part No.

--- ------ ------------------------------------------ -------------------------

=====Circuit Symbol and No.===Part Name Part No.

--- ------ ------------------------------------------ -------------------------

Page 37

R 413 RS1/10S681J R 417 RS1/10S0R0J R 421 RS1/10S102J R 422 RS1/10S302J R 423 RS1/10S102J

R 424 RS1/10S682J R 425 RS1/10S392J R 431 RS1/10S104J R 433 RS1/10S103J R 451 RS1/10S271J

R 452 RS1/10S332J R 453 RS1/10S332J R 454 RS1/10S100J R 603 RS1/16S104J R 632 RS1/16S104J

R 634 RS1/16S104J R 635 RS1/16S104J R 636 RS1/16S103J R 637 RS1/16S101J R 638 RS1/16S103J

R 639 RS1/16S101J R 640 RS1/16S104J R 650 RS1/16S122J R 651 RS1/16S101J R 652 RS1/16S101J

R 653 RS1/16S473J R 654 RS1/16S473J R 711 RS1/10S103J R 712 RS1/10S122J R 721 RD1/4PU471J

R 731 RS1/10S331J R 741 RS1/10S222J R 743 RS1/10S103J R 751 RS1/10S103J R 752 RS1/10S222J

R 761 RS2PMF180J R 801 RS1/10S822J R 802 RS1/10S104J R 811 RS1/10S473J R 812 RS1/10S223J

R 821 RS1/10S101J R 822 RS1/10S472J R 831 RS1/10S101J R 832 RS1/10S104J R 834 RS1/10S102J

R 835 RD1/4PU102J

CAPACITORS

C 101 CEAL101M10 C 102 CCSQCH101J50 C 103 CCSQCH101J50 C 111 CEJAR22M50 C 113 CKSQYB152K50

C 121 CKSQYB154K16 C 122 CKSQYB154K16 C 123 CKSQYB154K16 C 124 CEAL470M16 C 131 CKSQYB474K16

C 132 CCSQCH560J50 C 133 CEJAR68M50 C 141 CKSQYB103K50 C 142 CEAL470M16 C 201 CKSQYB105K16

C 202 CEJA100M16 C 203 CKSQYB105K16 C 204 CEJA100M16 C 205 CKSRYB103K50 C 206 CKSYB684K16

C 208 CCSRCH150J50 C 209 CCSRCH150J50 C 210 CKSRYB103K50 C 211 CKSQYB105K16 C 220 CEJA220M16

C 241 CEJA220M16 C 242 CKSQYB105K16 C 244 CKSQYB105K16 C 245 CCSRCH101J50 C 251 CKSQYB105K16

C 261 CKSQYB105K16 C 263 CKSQYB102K50 C 304 CKSRYB102K50 C 402 CKSQYB332K50 C 403 CKSQYB682K50

C 411 CKSQYB223K50 C 412 CKSQYB123K50 C 413 CKSQYB103K50 C 414 CKSQYB105K16 C 421 CKSQYB105K16

C 431 CKSQYB103K50 C 432 CKSQYB103K50 C 451 CKSQYB223K50 C 452 CKSQYB223K50 C 453 CEJA1R0M50

C 454 CEJA1R0M50 C 455 CEAL101M10 C 456 CKSQYB104K50 C 457 CKSQYB473K50 C 631 CKSRYB104K16

C 651 CKSRYB471K50 C 652 CKSRYB471K50 C 653 CKSRYB102K50 C 654 CKSRYB102K50 C 655 CKSQYB104K50

C 671 CCSRCH101J50 C 672 CKSRYB102K50 C 673 CKSRYB102K50 C 702 470µF/16V CCH1183 C 703 CKSQYB102K50

C 704 470µF/16V CCH1183 C 706 CKSQYB102K50 C 711 CEAS331M16 C 721 CEAL470M16 C 722 CEAL101M10

C 731 CEAL470M16 C 732 CEAL101M10 C 743 CEAL101M10 C 761 CKSQYB104K50 C 763 CKSQYB224K16

C 801 CKSQYB223K50 C 821 CEAL470M16 C 822 CKSQYB103K50 C 831 CEJA221M6R3 C 832 CEJA1R0M50

C 833 CKSQYB104K50 C 842 0.1F/5.5V CCL1023 C 851 CSZA220M16

CDX-P2050VC,P2050VN,P2050VS

=====Circuit Symbol and No.===Part Name Part No.

--- ------ ------------------------------------------ -------------------------

=====Circuit Symbol and No.===Part Name Part No.

--- ------ ------------------------------------------ -------------------------

Page 38

Unit Number : Unit Name : Mechanism PCB

Q 851 Photo-transistor PT4800 S 853 Spring Switch(HOME) CSN1051

Unit Number : Unit Name : Switch PCB

D 851 LED CN504-2 S 851 Spring Switch(DSP) CSN1051 S 852 Spring Switch(TAP) CSN1052

Unit Number : Unit Name : Motor PCB

M 853 Motor(TRAY) CXB4421

Unit Number : MWM1073 Unit Name : PCB Assy

MISCELLANEOUS

D 1 LED SLR-332MC(MN) D 2 LED SLR-332MC(MN) D 3 LED SLR-332MC(MN) SW 1 Switch(CALL) CSG1044 SW 2 Switch(+) CSG1044

SW 3 Switch(-) CSG1044 SW 4 Switch(VOL) CSG1044 SW 5 Switch(AUDIO) CSG1044 SW 6 Switch(SOURCE) CSG1044

RESISTORS

R 1 RD1/4PU100J R 2 RD1/4PU472J R 3 RD1/4PU153J R 4 RD1/4PU100J R 5 RD1/4PU472J

R 6 RD1/4PU153J R 7 RD1/4PU151J

Miscellaneous Parts List

Pickup Unit(P8)(Service) CXX1285 M 851 Motor(SPINDLE) CXB3003 M 852 Motor(ELV) CXB3006 M 854 Motor(CARRIAGE) CXB3004 VR 801 Volume 10K CCW1024

CDX-P2050VC,P2050VN,P2050VS

=====Circuit Symbol and No.===Part Name Part No.

--- ------ ------------------------------------------ -------------------------

Page 39

CDX-P2050VC,P2050VN,P2050VS

• Note :

CD mechanism modules the grating angle of the pickup unit cannot be adjusted after the pickup unit is changed.

The pickup unit in the CD mechanism module is adjusted on the production line to match the CD mechanism module and is thus the best adjusted pickup unit for the CD mechanism module. Changing the pickup unit is thus best considered as a last resort. However, if the pickup unit must be changed, the grating should be checked using the procedure below.

• Purpose :

To check that the grating is within an acceptable range.

• Symptoms of Mal-adjustment :

If the grating is off by a large amount symptoms such as being unable to close tracking, being unable to perform

track search operations, or track searching taking a long time, may appear.

• Method :

• Measuring Equipment • Oscilloscope, Two L.P.F.

• Measuring Points • E, F, REFO

• Disc • ABEX TCD-784

• Mode • TEST MODE

• Checking Procedure

1. Enter Test mode, then select Multi-CD player and switch the 5V regulator on.

2. Using the TRK+ and TRK- buttons, move the pickup unit to the innermost track.

3. Press key 9 to close focus, the display should read "91". Press key 9 2 times. Enter Rough Servo mode. Press key 8 to implement the tracking balance adjustment the display should now read "81".

4. As shown in the diagram above, monitor the LPF outputs using the oscilloscope and check that the phase difference is within 75° . Refer to the photographs supplied to determine the phase angle.

5. If the phase difference is determined to be greater than 75° try changing the pickup unit to see if there is any improvement. If, after trying this a number of times, the grating angle does not become less than 75° then the mechanism should be judged to be at fault.

• Note

Because of eccentricity in the disc and a slight misalignment of the clamping center the grating waveform may be

seen to "wobble" ( the phase difference changes as the disc rotates). The angle specified above indicates the average angle.

• Hint

Change the disc changes the clamp position and may decrease the "wobble".

REFO

L.P.F.

CD CORE UNIT

Xch

Ych

Oscilloscope

100kΩ

390pF

6.1 CHECKING THE GRATING

- Checking the Grating After Changing the Pickup Unit

6. ADJUSTMENT

Page 40

CDX-P2050VC,P2050VN,P2050VS

Grating waveform

45˚

0˚

75˚

60˚

30˚

90˚

Echt Xch 20mV/div, AC Fcht Ych 20mV/div, AC

Page 41

CDX-P2050VC,P2050VN,P2050VS

• Note :

This mechanisms is detects the height of the stage using slide-variable resistance. To absorb dislocation of the stage height caused by differences in the mechanism and the CD core unit, adjustment must be made for each CD-mechanism module using a variable resistor. Normally, readjustment is not needed, as this has been adjusted at the factory. However, adjustment of elevation is required according to the procedure explained below if an elevation error has occurred or if the CD core unit has been removed.

• Purpose :

To adjust and confirm whether or not elevation operates correctly.

• Adjustment Method :

• Measuring Equlpment: Oscilloscope, One L.P.F.

• Measuring Points : EREF, EPVO

• Setting : Without a magazine in Test mode With the mechanism placed upside-down (Place the CD mechanism module so that the CD

core unit is above.)

• Confirmation Procedure

1. Enter Test mode, then select Multi-CD player.

2. Press key 7 to enter Mechanism Test mode.

3. Press key 12 twice to specify the amount of movement.

6.2 ADJUSTMENT OF ELEVATION WHEN THE CD CORE UNIT HAS BEEN REMOVED FOR MAINTENANCE

- Adjustment When Error Code 60 is Displayed Because of Malfunctioning Elevation

TRACK FUNCTION

72 00' 00"

EREF

EPVO

Oscilloscope

CD CORE UNIT

L.P.F.

47kΩ

1µF

Examples of display

TRACK FUNCTION

72 00' 02"

TRACK FUNCTION

72 00' 01"

The amount of movement changes each time key 12 is pressed.

maximum movement

Key 12

during movement

Key 12

minimum movement

TRACK FUNCTION

72 00' 00"

Key 12

Page 42

CDX-P2050VC,P2050VN,P2050VS

4. Press key 9 to set ELV/TRAY mode to TRAY.

5. Press key FF to release the clamp and return the tray to the magazine.

6. Press key 9 to enter Elevation Move mode.

7. Use key FF/REV to operate elevation and set if to the graduation of the sixth step

(Fig. 1).

8. Make the adjustment. Use VR802 to adjust the difference in potential between EREF and EPVO to 0 ±10 mV.

9. When adjustment is completed, press key BAND to exit Mechanism Test mode.

10. Confirm operation of the mechanism. Place the mechanism horizontally (CD core unit below). Take care not to short-circuit the PCB.

11. Confirm the height of the stage. Use the DISC± key to select Disc No.6.

Check if the stopper bend of the clamp lever is engaged in the groove of the frame stopper (Fig. 2-4).

• Note :

The stopper bend will be pressed downward into the groove for final clamping. Confirm the engagement position of the stopper bend.

• If the stopper bend is engaged in the center and pressed downward, adjustment is completed. Go to step 15.

• If the stopper bend is dislocated, check the amount of dislocation by following steps 12 to 14.

TRACK FUNCTION

72 00' 02"

TRACK FUNCTION

72 00' 02"

TRACK FUNCTION

04 00' 00"

Examples of display

TRACK FUNCTION

72 01' 02"

Release the clamp

Page 43

CDX-P2050VC,P2050VN,P2050VS

12. To see the amount of dislocation, place the mechanism upside-down. If the stopper bend has been dislocated in the direction of the first CD, turn VR802 to the left(Fig. 2).

To lower the stage toward the twelfth step by 0.1 mm, reduce the voltage of EREF (adjusted in step 8) by 10 mV.

If the stopper bend has been dislocated in the direction of the twelfth CD, turn VR802 to the right(Fig. 4).

To raise the stage toward the first step by 0.1 mm, increase the voltage of EREF (adjusted in step 8) by 10 mV.

13. Place the mechanism horizontal. Go back to step 11 to reconfirm the stage height.

14. When adjustment of the stage height is completed, proceed as follows:

15. Press the EJECT switch.

16. Once operation of the mechanism has stopped, turn the power OFF.

17. Wait more than one minute after the power is turned off, then turn the power ON and insert a magazine.

18. Check if the mechanism operates correctly with the first, sixth, seventh and twelfth CDs.

19. If the mechanism operates properly, adjustment is completed. If the mechanism operates improperly, make the adjustment again.

GND

EREF

VR802

1µF

47kΩ

Oscilloscope

L.P.F.

Page 44

CDX-P2050VC,P2050VN,P2050VS

Stopper bend of the clamp lever

Frame stopper

Engaged in the center and pressed downward.

Fig. 1

Dislocated toward the first CD.

Adjust the insertion gate of magazine to the sixth scale.

Dislocated toward the twelfth CD.

Fig. 2

Fig. 3

Fig. 4

12346 5789BC

Page 45

1) Precautions

• This unit uses a single power supply (+5V) for the regulator. The signal reference potential, therefore, is connected to REFO(approx. 2.5V) instead of GND. If REFO and GND are connected to each other by mistake during adjustments, not only will it be impossible to measure the potential correctly, but the servo will malfunction and a severe shock will be applied to the pick-up. To avoid this, take special note of the following. Do not connect the negative probe of the measuring equipment to REFO and GND together. It is especially important not to connect the channel 1 negative probe of the oscilloscope to REFO with the channel 2 negative probe connected to GND. Since the frame of the measuring instrument is usually at the same potential as the negative probe, change the frame of the measuring instrument to floating status. If by accident REFO comes in contact with GND, immediately switch the regulator or power OFF.

• Always make sure the regulator is OFF when connecting and disconnecting the various filters and wiring required for measurements.

• Before proceeding to further adjustments and measurements after switching regulator ON, let the player run for about one minute to allow the circuits to stabilize.

• Since the protective systems in the unit's software are rendered inoperative in test mode, be very careful to avoid mechanical and /or electrical shocks to the system when making adjustment.

• Disc detection during tray extraction and return operations is performed by means of the photo transistor in this unit. Consequently, if the inside of the unit is exposed to a strong light source with the outer casing removed for repairs or adjustment, the following malfunctions may occur:

*Even with a disc loaded, the unit detects "no disc"

and cannot start play.

*Although a 12-cm disc is loaded, the unit detects

"8cm disc" mistakenly. When the unit malfunctions this way, either re-position the light source, move the unit or cover the photo transistor.

• During exchanging discs, do not press the keys for the discs to be exchanged.

2) Test Mode This mode is used for adjusting the CD mechanism module of the device.

• Test mode starting procedure

Reset while pressing the 4 and 6 keys together.

• Test mode cancellation Switch ACC, back-up OFF.

• If the 8 or 9 key is pressed while focus search is in progress, immediately turn the power off (otherwise the actuator may be damaged due to the lens stuck).

• Jump operation of TRs other than 100TR continues after releasing the key. CRG move and 100TR jump operations are brought into the “Tracking close” status when the key is released.

• Powering Off/On resets the jump mode to “Single TR (91)”, the RF AMP gain setting to 0 dB, and the automatic adjustment value to the initial value.

• During exchanging discs, do not press the keys for the discs to be exchanged.

Key to adjustment text HEAD UNIT (6 keys type) inside (12 keys type)

BAND BAND TRK+/FF TRK+/FF TRK-/REV TRK-/REV 71 82 93 10 4 11 5 12 6 DISC- DISCSOURCE ON/OFF SOURCE ON/OFF

CDX-P2050VC,P2050VN,P2050VS

7. GENERAL INFORMATION

7.1 DIAGNOSIS

7.1.1 TEST MODE

- CD Test Mode

Page 46

Focus Close*2S Curve Check

01 01 0100 00 00

(99 99 99)

Display

TYP

Reset

SOURCE

New test mode

TRK-

BAND

+6dB +12dB

8TRK+

TRK+ TRK-

06 06 06 12 12 12

Sourse CD

Single TR

9x(8x):91(81)

32TRK 92(82)

CRG Move

94(84)

100TRK

93(83)

Focus Mode Select

Focus Close/ S Curve Check

CRG−

Auto Adjustment Display Select

<Tracking Servo Close> CRG+

RF AGC Coefficient Display/ Rough Servo and RF AGC

Tracking Open

Display

Tracking Open

T. Close and Fit Servo

*3 F.Offset Display RF.Offset Display F.Cansel Display

Single TR/32TR/100TR

Voltage of CRG Motor = 2 [V]

(F,T.AGC Gain = (Present Value/Initial Value) × 20)

TRK+ TRK-

Display

8x 8x 8x

TRK SECMIN

9x 9x 9x

TRK SECMIN

CRG−CRG+

T.Balance Adjustment

F, T, RF AGC/ F.Bias Display Select

F, T AGC and RF AGC

CRG Move, 100TR Jump Only

TRK, MIN, SEC F.AGC Gain

RF AGC Gain

T.AGC Gain

Power ON

(Adjustment for T.Offset)

*4 *4

CRG/TR Jump NO. Select

CRG+/TR Jump+

CRG−/TR Jump−

Power OFF

Display

T.Close and F,T AGC and RF AGC and Fit Servo

Display

Power ON

(Not adjustment for T.Offset)

Display

RF AMP Gain Select

Power OFF

8x 8x 8x

TRK SECMIN

9x 9x 9x

TRK SECMIN

8x 8x 8x

TRK SECMIN

9x 9x 9x

TRK SECMIN

8x 8x 8x

TRK SECMIN

9x 9x 9x

TRK SECMIN

00 00 00

TRK SECMIN

99 99 99

TRK SECMIN

00 00 00

TRK SECMIN

99 99 99

TRK SECMIN

00 00 00

TRK SECMIN

99 99 99

TRK SECMIN

91 91 91

TRK SECMIN

0x 0x 0x

TRK SECMIN

00 00 00

TRK SECMIN

99 99 99

TRK SECMIN

GG GG GG

TRK SECMIN

Test Mode In

*8 *3*8

F.Cancel Value = {Top Rank 8bit of Set Value (7F [H] to 80 [H] ) + 128} / 4 = 63 [D] to (32 [D] ) to 00 [D]

BAND

912FF7REV BAND

Display

< Mechanism test mode in >

Display

<ELV,TRAY select>

*9 *12*11*10

72 00 00

TRK SECMIN

0X0072

*9 ELV motor select

*10

Display

TRAY motor select

0X1072

000072 010072 020072

8ms pulse drive

Display

24ms pulse drive DC drive

*11

001072

011072 021072

48ms pulse drive

Display

100ms pulse drive DC drive

ELV select : ELV dowm (Disc 12

→ 1)

TRAY select : TRAY out

*12 ELV select : ELV up (Disc 1

→ 12)

TRAY select : TRAY in

CDX-P2050VC,P2050VN,P2050VS

- Flow Chart

Page 47

CDX-P2050VC,P2050VN,P2050VS

- Error Messages

If a CD is not operative or stopped during operation due to an error, the error mode is turned on and cause(s) of the error is indicated with a corresponding number. This arrangement is intended at reducing nonsense calls from the users and also for facilitating trouble analysis and repair work in servicing.

(1) Basic Indication Method

1) When SERRORM is selected for the CSMOD (CD mode area for the system), error codes are written to DMIN (minutes display area) and DSEC (seconds display area). The same data is written to DMIN and DSEC. DTNO remains in blank as before.

2) Head unit display examples Depending on display capability of LCD used, display will vary as shown below. xx contains the error number.

8-digit display 6-digit display 4-digit display

ERROR–xx ERR–xx E–xx

Err–xx

* When the system is manufactured for an OEM basis, the error display will be configured according to the customer

specification.

(2) Error Code List

Code Class Displayed error code Description of the code and potential cause(s) 10 Electricity Carriage Home NG CRG can't be moved to inner diameter.

CRG can't be moved from inner diameter.

→ Failure on home switch or CRG move mechanism.

11 Electricity Focus Servo NG Focusing not available.

→ Stains on rear side of disc or excessive vibrations on REWRITABLE.

12 Electricity Spindle Lock NG Spindle not locked. Sub-code is strange (not readable).

→ Failure on spindle, stains or damages on disc, or excessive vibrations.

Subcode NG A disc not containing CD-R data is found. Turned over disc are found,

though rarely.

→ Failure on home switch or CRG move mechanism.

RF AMP NG An appropriate RF AMP gain can't be determined.

→ CD signal error.

17 Electricity Setup NG APC protection doesn't work. Focus can be easily lost.

→ Damages or stains on disc, or excessive vibrations.

30 Electricity Search Time Out Failed to reach target address.

→ CRG tracking error or damages on disc.

A0 System Power Supply NG Power (VD) is ground faulted.

→ Failure on SW transistor or power supply (failure on connector).

A1 System Mechanism power Mechanism elevation reference voltage is out of

failure prescription.

→EREF adjustment VR and/or power abnormal.

50 Mecha- An error upon MAG switch release time has time out.

nism ejection Elevation time out when eject.

60 Mecha- An error while putti- Tray in / out time has time out.

nism ng in and out the tray Tray is caught when put in.

Page 48

CDX-P2050VC,P2050VN,P2050VS

Code Class Displayed error code Description of the code and potential cause(s) 70 Mecha- An error upon Elevation time has time out.

nism elevation

80 Mecha- An error with an em- No disc is available.

nism pty magazine inserted

Remarks: Unreadable TOC does not constitute an error. An intended operation continues in this case.

A newly designed head unit must conform to the example given above. Upper digits of an error code are subdivided as shown below: 1x: Setup relevant errors, 3x: Search relevant errors, 3x: Search relevant errors, Ax: Other errors.

- New Test Mode

M-CD plays the same way as before. If an error such as off focus, spindle unlocking, unreadable sub-code, or sound skipping occurs after setup, its cause and time occurred (in absolute time) are displayed. During setup, operational status of the control software (internal RAM: CPOINT) is displayed. These displays and functions are prepared for enhancing aging in the servicing and efficiency of trouble analysis.

(1) Shifting to the New Test Mode

1 Turn on the current test mode by starting the reset from the 4 and 6 keys together. 2 Select M-CD for the source through the specified procedure including use of the [SOURCE] key. Then, press the

12 key while maintaining the regulator turned off.

3 After the above operations, the new test mode remains on irrespective of whether the M-CD is turned on or off.

You can reset the new test mode by turning on the reset start.

* With some products, the new test mode can be reset through the same operations as that employed for shifting to

the STBY mode (while maintaining the Acc turned off).

(2) Key Correspondence

Key Test mode New test mode

(Example) Power Off Power On In-play Error Production

BAND To power on To power off – Time/Err.No. switching

(offset adjustment performed)

UP – FWD-Kick FF/TR+ –

DOWN – REV-Kick REV/TR- –

7 – T.Close (AGC performed) Scan –

/parameter display switching

8 RF AMP gain switching Parameter display switching Mode –

/T.BAL adjustment/T.Open

9 To power on F.Close/RF AGC/F.T.AGC – –

(offset adjustment not performed) 10 – F.Open – – 11 – Jump Off – – 12 – F.Mode switching Auto/Manu T.No./Time switching

/T.Close (no AGC)/Jump switching

Page 49

CDX-P2050VC,P2050VN,P2050VS

Key Mechanism Test Mode

(Example)

BAND Back to the test mode

UP Playing the mechanism

DOWN Playing the mechanism

7 Mechanism test mode in 8–

9 TRAY/ELV select 10 – 11 – 12 Operation step select

Note: Eject and CD on/off is performed in the same procedure as that for the normal mode.

(3) Cause of Error and Error Code

Code Class Contents Description and cause 40 Electricity Off focus detected. FOK goes low.

→ Damages/stains on disc, vibrations or failure on servo.

41 Electricity Spindle unlocked. FOK = Low continued for 50 msec.

→ Damages/stains on disc, vibrations or failure on servo.

42 Electricity Sub-code unreadable. Sub-code was unreadable for 50 msec.

→ Damages/stains on disc, vibrations or failure on servo.

43 Electricity Sound skipping detected. Last address memory function was activated.

→ Damages/stains on disc, vibrations or failure on servo.

Note: Mechanical errors during aging are not displayed.

The error codes should be indicated in the same way as in the normal mode.

(4) Display of Operational Status (CPOINT) during Setup

Status No. Contents Protective action 00 CD+5V ON process in progress. None 01 Servo LSI initialization (1/3) in progress. None 02 Servo LSI CRAM initialization in progress. None 03 Servo LSI initialization (2/3) in progress. None 04 Offset adjustment (1/3) in progress. None 05 Offset adjustment (2/3) in progress. None 06 Offset adjustment (3/3) in progress. None 07 FZD adjustment in progress. None 08 Servo LSI initialization (3/3) in progress. None 10 Carriage move to home position started. None 11 Carriage move to home position started. None 12 Carriage is moving toward inner diameter. Specified 10 seconds has been passed or failure

on home switch.

13 Carriage is moving toward outer diameter. Specified 10 seconds has been passed or failure

on home switch. 14 Carriage outer kick in progress. None 15 Carriage outer diameter feed (1 second) in progress. None 20 Servo close started. None 21 Pre-processing for focus search started. None 22 Spindle rotation and focus search started. None 23 Waiting for focus close (XSI=Low). Specified focus search time has been passed. 24 Standing by after focus close is over. Specified focus search time has been passed. 25 Focus search preprocessing is in None

progress while setup protection is turned on.

Page 50

CDX-P2050VC,P2050VN,P2050VS

Status No. Contents Protective action 26 Focus search preprocessing is in None

progress while focus recovery is turned on. 27 Wait time after focus close is set up. Off focus. 28 Standing by after focus close is over. Off focus. 29 Setup (1/2) before T balance adjustment is started. Off focus. 30 Setup (2/2) before T balance adjustment is started. Off focus. 31 T balance adjustment started. Off focus. 32 T balance adjustment (1/2). Off focus. 33 T balance adjustment (2/2). Off focus. 34 Waiting for spindle rotation to end. Off focus.

Spindle rough servo. 35 Standing by after spindle rough servo is over. Off focus. 36 RF AGC started. Off focus. 37 RF AGC started. Off focus. 38 RF AGC ending process in progress. Off focus. 39 Tracking close in progress. Off focus. 40 Standing by after tracking is closed. Off focus.

Carriage closing in progress. 41 Focus/tracking AGC started. Off focus. 42 Focus AGC started. Off focus. 43 Focus AGC in progress. Off focus. 44 Tracking AGC in progress. Off focus. 45 Standing by after focus/tracking AGC are over. Off focus. 46 Spindle processes applicable servo. Off focus. 47 Check for servo close is started. Off focus. 48 Check of LOCK pin started. Off focus or spindle not locked. 49 RF AGC started. Off focus. 50 RF AGC in progress. Off focus. 51 Standing by after RF AGC is over. Off focus.

(5) Display Examples

1) During Setup (When status no. = 11) TRK No. MIN. SEC.

11 11' 11"

2) During Operation (TOC read, TRK search, Play, FF and REV)

The same as in the normal mode.

3) When a Protection Error Occurred

Switch to the following displays (A) and (B) using the [BAND] switch:

(A) Error occurrence timing display in absolute time. An example: Error occurred in 12th tune at 34'56" in absolute time.

TRK No. MIN. SEC.

12 34' 56"

(B) Error No. display An example: Error #40 (Off focus is detected) ERROR-40

Page 51

CDX-P2050VC,P2050VN,P2050VS

- VOICE UNIT Test Mode

Step 1: Turning on the test mode

1 Connect Pin 1 on the microcomputer to the ground, supply power, then press the reset switch. 2 At this time, the automatic self-check is implemented by the voice recognition LSI (AK2316).

When normal: The “Test mode” guidance will be output. If any trouble is present: The following frequency of “pee” sounds will be repeated depending on type of the given error. When this sound is ended, you can repeat the “pee” sounds all over again by pressing any key. If the self-check detected any error, you can’t proceed to further steps in the test mode. Return to the selfcheck 1 above.

3 times: Error A is detected. 4 times: Error B is detected. 5 times: Errors A and B are detected. 6 times: Error D is detected. 7 times: Errors A and D are detected. 8 times: Errors B and D are detected.

9 times: Errors A, B and D are detected. Where, A: Flash memory (static data area) check-sum error. B: Communication error between DSP and RISC. D: External SRAM write/read error.

* For details of the voice recognition specification, refer to the specification for the voice recognition LSI

(AK2316).

Step 2: Generating output of the built-in guidance word by word using the “+ key” or “- key”.

1 Press the “+ key” or “- key”. 2 This will output one word of the guidance. For the guidance list, refer to the “List of Guidance by

Destination” (see page 52).

* Repeating the above 1 operation allows you to sequentially output the total guidance sentence.

Step 3: Check the IP-BUS for normal connection.

(The guidance is available only when M/U is connected. If not connected, the guidance is not output. Even if M/U is not connected, however, you can proceed to Step 4 of the test.)

1 Depress the CALL key for less than 2 seconds. 2 The following guidance will be output notifying you whether or not the IP-BUS connection is appropriate:

When appropriate: “IP BUS is OK”.

When inappropriate: “IP BUS is No Good”.

Step 4: Check whether registration with your voice is available.

1 Press the CALL key for 2 seconds minimum.

2 The guidance “Say name to be registered ....Pii” will be output.

3 Speak! (Speak any words to the microphone for 2.5 seconds maximum.) 4 When your voice is registered: What you spoke will be played back.

When failed to register: The guidance “Buu” will be output. (Repeat the above step 1 through 4 until 4 words are registered.)

5 As your 4 words are registered, the guidance “Name is complete” will be output indicating the registration

operation is finished.

Page 52

CDX-P2050VC,P2050VN,P2050VS

Step 5: Check whether the registered words are recognizable.

(Make sure that 4 words are already registered in step 4 above.)

1 Press the CALL key for 2 seconds maximum. 2 The guidance “Make a request ...Puu” will be output. 3 Speak! (Speak one of 4 words registered.) 4 When successfully recognized: The guidance “Thank you” will be output.

When failed to recognize: The guidance “Buu” will be output. * You can repeat above steps any number of times starting with 1.

Step 6: Repeating the test mode from the first.

(When the step 4 is complete, it is available to repeat the test mode again from Step 2.)

1 Press the CALL key for 2 seconds minimum. 2 The guidance “Test is finished” will be output. 3 Press the CALL key for less than 2 seconds. 4 The guidance “Test mode” will be output.

Now, you can proceed to step 2.

List of Guidance by Destination

Guidance contents

Order No. CDX-P2050VS/X1N/EW CDX-P2050VC/X1N/UC,P2050VN/X1N/EW

1 Make a request Make a request 2 Say name to be registered Say name to be registered 3 Naming is complete Naming is complete 4 That name is too long That name is too long 5 Thank you Thank you 6 Please say name again Please say name again 7 Please make your request again Please make your request again 8 Say source name to be registered Say source name to be registered

9 Say equalizer mode name to be registered Say equalizer mode name to be registered 10 Say listening position name to be registered Say listening position name to be registered 11 No name registered No name registered 12 English English 13 Solicite, por favor Faites votre demande 14 Entre el nombre a grabar Enregistrez le nom 15 Grabado Le nom est enregistre 16 El nombre es demasiado large Le nom est trop long 17 Gracias Merci 18 Repita, por favor Enregistrez le nom a nouveau 19 Repita, por favor Re´pe´tez s´il vous plail 20 Diga el nombre de la fuente a registrar Enregistrez le type de source 21 Diga el nombre del mode de ecualizacion Enregistrez le mode audio

a registrar

22 Diga el nombre de la posicion de escucha Enregistrez la position d´ecoute

a registrar 23 No hey nombre registrado Aucun nom enregistre 24 Espanol Francais 25 Fare la richiesta Bitte aufrufen 26 Registrare il nome Bitte Namen eingeben 27 Registrazione eseguita Name ist gespeichert 28 ll nome e´ troppo lungo Name zu lang

Page 53

CDX-P2050VC,P2050VN,P2050VS

Guidance contents

Order No. CDX-2050VS/X1N/EW CDX-P2050VC/X1N/UC,P2050VN/X1N/EW

29 Ricevuto Vielen Dank 30 Ripetere il nome, prego Bitte erneut eingeben 31 Ripetere la richiesta, prego Bitte erneut aufrufen 32 Registrare il nome della sorgente Bitte Namen der Tonquelle eingeben 33 Registrare il nome del mode dell´ equalizzatore Bitte Namen der Equalizereinstellung eingeben 34 Registrare il nome della posizione di ascolto Bitte Namen der Horposition eingeben 35 Nessun nome e´ registrato´´ KEIN NAME Gespeichert 36 Italiano Deutsch 37 Face o seu pedido Kies een naam 38 Diga o nome a registar Naam inspreken 39 O nome esta registado Naam is geregistreerd 40 O nome e demasiado comprido Deze naam is te lang 41 Obrigada Dank u wel 42 Repita o nome por favor Herhaal naam 43 Repita por favor Herhaal de naam 44 Diga o nome da fonte a registar Benoem de bron 45 Diga o nome do modo do equalizador a registar Benoem het geluidseffect 46 Diga o nome da posicao de audicao a registar Benoem de luisterpositie 47 SEM NOME Geen Naam geregistreerd 48 Portugues Nederlands 49 Pii (Register) Pii (Register) 50 Puu (Start recognizable) Puu (Start recognizable) 51 Buu Buu 52 BuuBuu BuuBuu 53 PiiPii (Finish of register to guidance OFF mode) PiiPii (Finish of register to guidance OFF mode) 54 PuuPuu (Finish of recognizable to guidance PuuPuu (Finish of recognizable to guidance

OFF mode) OFF mode)

55 Buuuuu Buuuuu

Page 54

CDX-P2050VC,P2050VN,P2050VS

- Removing the Power Unit (Fig.8)

Remove the two screws.

Remove the screw.

Remove the claw and remove the Power Unit.

Removing the Upper Case (not shown)

1. Remove the night screws.

2. Remove the upper case.

- Removing the CD Mechanism Module

Remove the four dampers (Fig.6).

Disconnect the connector (Fig.6).

Remove the two springs (Fig.6).

Disconnect the connector and then removing the

CD Mechanism Module (Fig.7).

- Removing the Grille Unit (not shown)

1.Press the two tabs indicated by arrows and then pull out the Grille Unit.

Fig.8

CD Mechanism Module

Fig.6

Fig.7

7.1.2 DISASSEMBLY

- Removing the Voice Unit (Fig.5)

1. Remove the six screws. (not shown)

2. Remove the the case. (not shown)

Disconnect the connector.

Remove the four claws and remove the Voice Unit.

Voice Unit

Fig.5

Power Unit

Page 55

CDX-P2050VC,P2050VN,P2050VS

- Removing the Pickup Unit

1. Insert a short pin into the pickup flexible PCB.

2. Remove the pickup flexible PCB from the connector.

3. Remove the flexible card from the connector.

4. Remove the lead wires of the spindle motor assy and carriage motor assy by removing solder.

5. Loosen the two screws. Lift up the relay PCB as shown in Fig. 9. Be careful not to excessively pull the tray motor flexible PCB and the relay flexible PCB.

6. Remove screws A and then remove the carriage motor assy, lighting conductor, feed screw holder, feed screw and belt (see Fig. 10).

7. Remove screw B on the main side and the pickup unit together with the guide shaft (see Fig. 10).

Fig.9

Flexible card

Erect

Flexible PCB (handle with care)

Tray motor flexible PCB (handle with care)

Short Pin

Relay PCB

Screw A

Motor bracket

CRG motor

Screw A

Feed screw holder

Feed screw

Guide shaft (main)

Guide shaft (sub)

Belt

Screw B

Pickup unit

Fig.10

Lighting conductor

Page 56

CDX-P2050VC,P2050VN,P2050VS

7.2 IC

AK2316

29 30

32 33 34

41 42 43 44 45 46 47

48 49

MD7

MD8

MD9

MD10 MD11 MD12 MD13

MD14

MD15

DVDD DVSS

MA0

MA1 MA2

MA3 MA4 MA5

MA6

MA7

MA8 MA9

MA10

MA11

MA12

DVDD

100

97 96

94 93 92

85 84 83 82 81 80 79

78 77

VOICE OUT

VREF

MUTE OUT

AVSS2 AVDD2

RAM 8BSEL

HS MODE

TMODE

cpu trst

CPU TMS

DVSS

DVDD

CPU TCK

CPU TDI

CPU TDO

HA1 HA0

HD7

HD6

HD5 HD4

HD3

HD2

HD1

HD0

MA13

MA14

MA15

MA16

MA17

MA18

MA19

MA20

MA21

MA22

DVDD

DVSS

CLKIN

CLKSEL

CLKOUT

DVDD

DVSS

AT0

AT1

reset

STATREQ

hrd

hwr

hcs

VCOM

AVDD1

AVSS1

VOICEIN

VOOUT

AINL

AINR

MIXOUT

AUDINR

AUDINL

ROM8BSEL

DVDD

DVSS

mcsraml

mcsramh

mcsrom

mwr

mrd

MD0

MD1

MD2

MD3

MD4

MD5

MD6

Memory Manager Unit

Host I/F

VR AAF

Voltage Reference

ADC 14bit 12kHz

AAF

ADC 14bit 12kHz

Mixer

ADC 14bit 8kHz

I/O

Control

JTAG

Power Down and PLL

DSP

(PLATINA)

Program ROM

(16kwX32bit)

DATA ROM (6kwX16bit)

X-RAM

(2kwX16bit)

Y-RAM

(2kwX16bit)

Accelerator

CPU

(ARM7TDMI)

Thumb RAM

(32kbit)

DMA

DSP-BUS

CPU-BUS

DSP CPU I/F

BUF

SCF

Page 57

CDX-P2050VC,P2050VN,P2050VS

PD6304B,PD6305B

A15

A14

A13

A12

A11

A10

N.C.

RESET

N.C.

RY/BY

N.C.

A17

A16

BYTE

DQ15/A-1

DQ7

DQ14

DQ6

DQ13

DQ5

DQ12

DQ4

DQ11

DQ3

DQ10

DQ2

DQ9

DQ1

DQ8

DQ0

CIRCUIT

WRITE

WRITE/ERASE

PULSE TIMER

RY/BY

BUFFER

CONTROL

(COMMAND

LOW VCC

LATCH

DECODER

YGATE

4,194,304

CELL

MATRIX

DATA

INPUT/OUTPUT BUFFER

CHIP INABLE

CIRCUIT

OUTPUT INABLE

STB

ADDRESS

DECODER

LATCH

DETECT CIRCUIT

CIRCUIT

ERASE

A-1

M5M51016BTP-70LL

BLOCK INPUT BUFFER

COLUMN INPUT BUFFER

ROW INPUT BUFFER

CLOCK GENERATOR

ROW ADDRESS DECODER

COLUMN ADDRESS DECODER

BLOCK ADDRESS

DECODER

SENSE

OUTPUT BUFFER

INPUT DATA CONTROL CIRCUIT

12345678

9101112

13 14 15 16

17 18 19 20 21 22

44 43 42 41 40 39 38 37 36 35 34 33 32 31 30 29 28 27 26 25 24 23

A12

GND

DQ1

DQ2

DQ3

DQ4

DQ5

DQ6

DQ7

DQ8

DQ9

DQ10

DQ11

DQ12

DQ13

DQ14

DQ15

DQ16

GND

A10

A11

A13

A15

A14

BC2

BC1

65536X16bit

RAM

(512X256X8

BLOCK)

AMP

SENSE AMP

Page 58

CDX-P2050VC,P2050VN,P2050VS

- Pin Functions (PE5041A)

Pin No. Pin Name I/O Format Function and Operation

1 svtest I Service testmode input 2 NC Not used 3 VCPPW O C Power supply for AK2316,ROM 4 AVSS A/D converter ground potential 5 NC Not used 6 IPPW O C Power supply control output for IP BUS interface IC 7 AVREF1 (Connect to VDD) 8 GLEV0 O C Guidance level output 0

9 GLEV1 O C Guidance level output 1 10 NC Not used 11 ILLM O C Illumination output

12–14 NC Not used

15 SYSPW O C System power supply control output 16 TSI I Chip test data input 17 TSO O C Chip test data output 18 TSCK I Chip test clock input

19–26 NC Not used 27–32 HD0–5 I/O Data line 0–5

33 VSS Grand potential

34,35 HD6,7 I/O Data line 6,7

36 RAMPF O CS2 control output for SRAM 37 hwr O Data writing request output 38 hrd O Data reading request output 39 PD O Power down control output

40,41 HA0,1 O C Registor select address output 0,1 42,43 NC Not used

44 MUTE O C Mute control output for AK2316,ROM 45 BEEP O C BEEP

46,47 NC Not used

48 VCPRST O C AK2316,ROM reset output

49–55 NC Not used

56 TX O C IP BUS data output 57 RX I IP BUS data input

58,59 NC Not used

60 reset I Reset input 61 VSS GND 62 bsens I Back up power sense input 63 asens I ACC power sense input

64–67 NC Not used

68 VDD Power supply 69 X2 System clock input (x1) 70 X1 System clock input 71 IC Connect to GND 72 XT2 Sub Clock terminal 73 TEST/TESTEN I Test mode/Test enable 74 AVDD A/D converter analog power supply (VDD) 75 NC Not used 76 KEY1 VOL key/AUDIO key/SOURCE key input 77 KEY2 CALL key/+ key/- key input 78 GSENS I Debug input

79,80 NC Not used

Page 59

CDX-P2050VC,P2050VN,P2050VS

*PE5041A

Format Meaning C 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.

- Pin Functions (UPD63710GC)

Pin No. Pin Name I/O Function and Operation

1 GND Logic circuit GND 2 HOLD I/O Defect detection output 3 MIRR I/O MIRR output 4 FOK O RFOK signal output 5 rst I Reset signal input 6 A0 I Command/parameter identification signal input 7 stb I Data strobe signal input 8 sck I Clock signal input for serial data input/output

9 SO O Serial data and status signal output 10 SI I Serial data input 11 VDD Positive power supply terminal to logic circuit 12 DA.VDD Positive power supply terminal to D/A converter 13 NC Not used

14, 15 DA.GND D/A converter GND

16 NC Not used 17 DA.VDD Positive power supply terminal to D/A converter 18 R+ O Right channel audio data output 19 R- O Right channel audio data output 20 L- O Left channel audio data output 21 L+ O Left channel audio data output 22 X.VDD Positive power supply terminal to crystal oscillation circuit 23 xtal O Crystal oscillator connect pin 24 XTAL I Crystal oscillator connect pin 25 X.GND Crystal oscillation circuit GND 26 VDD Positive power supply terminal to logic circuit 27 EMPH O Output pin for the pre-emphasis data in the sub-Q code 28 FLAG O Flag output pin to indicate that audio data currently being output consists

of noncorrectable data 29 DIN I Serial data input to internal DAC 30 DOUT O Serial audio data output 31 SCKIN I Serial clock input to internal DAC 32 SCKO O Audio data that is output from DOUT changes at rising edge of this clock 33 LRCKIN I LRCK signal input to internal DAC 34 LRCK O Signals to distinguish the right and left channels of the audio data output

from DOUT 35 WDCK O Output double the frequency of LRCK 36 TX O Digital audio interface data output 37 GND Logic circuit GND 38 C16M O Oscillator clock buffering output 39 LIMIT I Status of the pin is output at Bit 5 of the status output

Page 60

CDX-P2050VC,P2050VN,P2050VS

Pin No. Pin Name I/O Function and Operation

40 VDD Positive power supply terminal to logic circuit 41 LOCK O EFM synchronous detection signal 42 RFCK O Frame synchronous signal of XTAL-system 43 WFCK O Frame synchronous signal of PLL-system 44 PLCK O Monitor pin of bit clock 45 GND Logic circuit GND 46 C1D1 O Output pin for indicating the C1 error correction results 47 C1D2 O Output pin for indicating the C1 error correction results 48 C2D1 O Output pin for indicating the C2 error correction results 49 C2D2 O Output pin for indicating the C2 error correction results 50 C2D3 O Output pin for indicating the C2 error correction results 51 VDD Positive power supply terminal to logic circuit 52 PACK O CD-TEXT PACK synchronous signal 53 TSO O CD-TEXT data serial output 54 TSI I CD-TEXT control parameter serial input 55 tsck I CD-TEXT serial clock input 56 TSTB I CD-TEXT parameter strobe signal input 57 GND Logic circuit GND 58 TEST I Test pin 59 ATEST I/O Test pin 60 RFMODE I Use/not use select for internal RF amplifier 61 A.GND Analog circuit GND 62 FD O Focus drive output 63 TD O Tracking drive output 64 SD O Sled drive output 65 MD O Spindle drive output 66 DACO O DAC output for adjustment 67 FBAL O DAC output for adjustment 68 TBAL O DAC output for adjustment 69 TEVCA O DAC output for adjustment 70 A.VDD Power supply terminal to analog circuit 71 EFM O EFM signal output 72 ASY I EFM comparator reference voltage input 73 C3T 3T detection capacitor additional pin 74 RFI I RF signal input for EFM data regulation 75 AGCO O RF signal output of after gain adjustment 76 AGCI I RF-AGC amplifier input 77 RFO O RF summing amplifier output 78 EQ2 RF amplifier equalizer parts additional pin 79 EQ1 RF amplifier equalizer parts additional pin 80 RF- I RF summing amplifier inverted input 81 A.GND Analog circuit GND 82 A I Photo detector A input 83 C I Photo detector C input 84 B I Photo detector B input 85 D I Photo detector D input 86 F I Photo detector F input 87 E I Photo detector E input 88 A.VDD Positive power supply terminal to analog circuit 89 REFOUT O Reference electric potential output 90 FE- I Focus error amplifier inverted input 91 FEO I/O Focus error amplifier output 92 TE- I Tracking error amplifier inverted input 93 TEO I/O Tracking error amplifier output 94 TE2 I/O Tracking error output of after amplification 95 TEC I Tracking comparator input 96 A.GND Analog circuit GND 97 PD I PD detection signal input for LD output monitor 98 LD O LD control current output 99 PN I APC circuit control polarity set pin

100 A.VDD Positive power supply terminal to analog circuit

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CDX-P2050VC,P2050VN,P2050VS

100

*UPD63710GC

BA05FP

Reference voltage

Vcc

GND OUT

123

VCC

PreVcc

OPIN4(+)

OPIN4(-)

OPOUT4

OPIN3(+)

OPIN3(-)

OPOUT3

GND

STBY

PowVcc

VO3(-)

VO3(+)

VO4(-)

VO4(+)

BIAS IN

OPIN1(+)

OPIN1(-)

OPOUT1

OPIN2(+)

OPIN2(-)

OPOUT2

GND

MUTE

PowVcc

VO2(-)

VO2(+)

VO1(-)

VO1(+)

Stand-by

Mute

Level shift

BA5986FM

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CDX-P2050VC,P2050VN,P2050VS

1234

6789

BCSEL DASEL NC LRSEL LRCKO

BCKO

DATAO GND

18 17 16 15

13 12 11 10

XRST SEL NC BCKI DATAI

LRCKI VDD

Data Input

Timing Generator

Data Output

Data Delay

Cofficient Storage ROM

Data Distinction Block

Operation Block

Distinction Data Delay Block

PD0236AM

PE8001A1

123

456

789

10 11

LRCK

DATA

BCK CLKO

XTI

XTO DGND

VDD

VCC2R

AGND2R

EXTR NC

VOUTR

AGND1

Serial Input I/F

Crystal OSC

28 27 26

25 24 23

22 21 20

19 18

ML/IIS

MC/DM1

MD/DM0

mute

MODE

cs/WO rst

zero

VCC2L

AGND2L

EXTL NC

VOUTL

VCC1

Low-pass Filter

DAC

Mode Control I/F

8X Oversampling Digital Filter with Function Controller

Multi-level Delta-Sigma Modulator

Power Supply

BPZ-Cont

Open drain

SCK

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CDX-P2050VC,P2050VN,P2050VS

- Pin Functions (PD5512B)

Pin No. Pin Name I/O Format Function and Operation

1 DACRST O C DAC reset output 2 NC Not used 3 adena O C A/D reference voltage output 4 TXTSTE O C TEXT parameter output 5 TXTSO O C TEXT control parameter serial output 6 TXTSI I TEXT data serial input 7 TXTSCK O C TEXT clock output 8 BYTE I VCC joint

9 CNVSS I VSS joint 10 POWER O C CD +5V control 11 CONT O C Servo driver output control 12 reset I Reset input 13 XOUT O Crystal oscillating element connection pin 14 VSS GND 15 XIN I Crystal oscillating element connection pin 16 VCC VDD 17 nmi I Pull up 18 bsens I Back Up sense input 19 asens I ACC power sense input 20 TXTPACK I TEXT PACK interrupt input 21 IPTA4IN I IPIN joint 22 IPPW O C Power supply control output for IP BUS interface IC 23 daccs O C PE8001A1 chip select 24 csel I Compression select 25 optsw I Optical connector detector input 26 ccs O C Compression IC chip enable output 27 LGSW I LEGATO LINK ON/OFF input 28 NC Not used 29 IPIN I Data input from IP BUS interface IC 30 IPOUT O NM Data output for IP BUS interface IC 31 DACMD O C PE8001A1 mode control data output 32 dacml O C PE8001A1 mode control latch output 33 DACMC I PE8001A1 mode control bck input 34 testin I Test program mode input 35 XSO O C LSI data output 36 XSI I LSI data input 37 XSCK O C LSI clock output 38 M6M12 I 6/12 disc select input

39–43 NC Not used

44 rd O C SRAM enable output 45 NC Not used 46 wr O C SRAM write enable output 47 NC Not used 48 cs O C SRAM chip select 49 XA0 O C CD LSI data detect control signal output 50 xstb O C CD LSI strobe output 51 xrst O C CD LSI reset output 52 MIRR I Mirror detector input 53 LOCK I Spindle lock detector input 54 FOK I FOK signal input 55 NC Not used 56 A11 I Address BUS input 57 A9 O C SRAM address bus output 58 A8 O C SRAM address bus output 59 A13 O C SRAM address bus output 60 A14 O C SRAM address bus output 61 A12 O C SRAM address bus output

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CDX-P2050VC,P2050VN,P2050VS

Pin No. Pin Name I/O Format Function and Operation

62 VCC VDD 63 A7 O C SRAM address bus output 64 VSS GND

65–68 A6-A3 O C SRAM address bus output

69 A10 O C SRAM address bus output 70 A2 and (EPSK) O C SRAM address bus output and (E2PROM clock output) 71 A1 and (EPDI) O/I C SRAM address bus output and (E2PROM data input) 72 A0 and (EPDO) O C SRAM address bus output and (E2PROM data output) 73 NC Not used 74 ejsw I Eject key switch interrupt input 75 mag I Magazine lock switch interrupt input 77 NC Not used 78 I13 O C Motor driver control output 79 I2 O C Motor driver control output 80 I4 O C Motor driver control output

81–88 D0-D7 I/O C SRAM data bus

89,90 NC Not used

91 DSP I DISC detect timing input 92 disk I Disc detector input 93 ELVPVO I Voltage input from ELV position sense 94 ELVREF I ELV reference voltage input 95 TRP I Tray position input 96 AVSS I A/D GND 97 VDIN Power supply short sensor input 98 VREF I A/D converter reference voltage input 99 AVCC A/D VCC

100 EPCS I/O C E2PROM detect input , Chip select output

*PD5512B

Format Meaning C C MOS NM Middle resistivity

N channel open drain

TC7SH32FU

1 IN B

2 IN A

3 GND

4 OUT Y

5 VCC

100

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CDX-P2050VC,P2050VN,P2050VS

8. OPERATIONS AND SPECIFICATIONS

8.1 OPERATION

Resetting the Microprocessor

The microprocessor must be reset under the following conditions:

When using this product for the first time after installation. When the machine fails to operate properly.

• To reset the microprocessor, press the Reset button on this product with a pen tip or other pointed instrument.

Note:

• When changing batteries or unplugging the power cord, even if there is no power for an extended

period, voice recordings remain in memory for up to about 24 hours at normal temperatures. However, if the inside of the car becomes hot, recordings may not remain in memory that long.

• When the unit is switched on again, if you want to use the voice recordings as they are, do not press

the Reset button. (If you press it, recordings are erased.)

If the power does not switch on or if the compact disc player does not operate when the button on the multi-CD controller is pressed, or if the multi-CD controller display is incorrect, press this button on the player with the tip of a pencil to restore normal operation. (This button is located inside the door.) Always press the Reset button on the multi-CD controller, too, after pressing this button.

Note:

• If the Reset button is pressed when the player contains a magazine or the ignition switch is set to

the ON or ACC position, the CD title display and ITS memory are cleared.

Reset button for CD player

Reset button for Voice unit

Page 66

Yellow

To the terminal always supplied with power regard-

less of ignition switch position.

Black (ground)

To the vehicle (metal) body.

Fuse holder

CD Player unit

Controller

Microphone

To Multi-CD controller

IP-BUS cable

To prevent incorrect connection, the input side of the IP-BUS

connector is colored in blue, and the output side in black.

Connect the connectors of the same colors correctly.

IP-BUS (black)

IP-BUS output (black)

Connect the black connector of the cable to

this connector.

Clamper (large)

Extension Cable

CDX-P2050VC,P2050VN,P2050VS

Connecting the Units

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CDX-P2050VC,P2050VN,P2050VS

General

System .................................... Compact disc audio system

Usable discs ................................................ Compact Disc

Signal format .................... Sampling frequency: 44.1 kHz

Number of quantization bits: 16; linear

Power Source .......................................................... 14.4 V

(10.8 – 15.1 V allowable)

Grounding System ...................................... Negative Type

Max. Current Consumption ...................................... 2.0 A

CD Player Unit

Dimensions ............ 257 (W) × 94 (H) × 195 (D) mm

{10-1/8 (W) × 3-3/4 (H) × 7-5/8 (D) in.}

Weight .............................................................. 2.4 Kg

(5.3 lbs)

Controller

Dimensions ................ 41 (W) ×84 (H) × 19 (D) mm

{1-5/8 (W) × 3-3/8 (H) × 3/4 (D) in.}

Weight .............................................................. 0.1 Kg

(0.2 lbs)

Audio

Frequency characteristics ............ 5 — 20,000 Hz (±1 dB)

Signal-to-noise ratio .... 100 dB (1 kHz) (IEC-A Network)

Distortion .............................................................. 0.004 %

Dynamic range ............................................ 95 dB (1 kHz)

Output level ................................ 1,000 mV (1 kHz, 0 dB)

Number of channels ............................................ 2 (stereo)

Others

Voice Recognition System

...................................... Specified Voice Recognition

Maximum Registration Time .................. 2.5 sec. per item

Maximum Registration Number ........................ 100 items

Note:

• Specifications and the design are subject to possi-

ble modification without notice due to improvements.

8.2 SPECIFICATIONS

PIONEER CDX-P2050 Service Manual

Specifications and Main Features

Frequently Asked Questions

User Manual