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CDX-P656/X1N/UC
Service Manual
MULTI-CD COMPACT DISC PLAYER
ORDER NO.
CRT2317
CDX-P656
CDX-P25
description. - The CD mechanism employed in this model is one of C7 series.
X1N/UC
X1N/EW
- See the separate manual CX-892(CRT2356) for the CD mechanism description, disassembly and circuit
CONTENTS
1. 2. 3. 4. 5. 6. SAFETY INFORMATION ............................................3 EXPLODED VIEWS AND PARTS LIST .......................4 SCHEMATIC DIAGRAM ...........................................12 PCB CONNECTION DIAGRAM ................................20 ELECTRICAL PARTS LIST ........................................26 ADJUSTMENT..........................................................29 7. GENERAL INFORMATION .......................................35 7.1 IC .........................................................................35 7.2 DIAGNOSIS ........................................................40 7.2.1 DISASSEMBLY .........................................40 7.2.2 TEST MODE ..............................................42 7.3 BLOCK DIAGRAM ..............................................48 8. OPERATIONS AND SPECIFICATIONS.....................50
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. FEB. 1999 Printed in Japan
CDX-P656,P25
- CD Player Service Precautions
1. For pickup unit(CXX1285) handling, please refer to"Disassembly"(See page 40). 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 29) since these screws protects the mechanism during transport, be sure to affix it when it is transported for repair, etc.
Transportation of multi-CD Player
Seal After removing the transport screw, cover the hole with the supplied seal.
Transport screw Attach to the original position before transporting the set.
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.
2
CDX-P656,P25
1. SAFETY INFORMATION
1.1 CDX-P656/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. WARNING 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-P25/X1N/EW
1. Safety Precautions for those who Service this Unit. · Follow the adjustment steps (see pages 29 through 34)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
3
CDX-P656,P25
2. EXPLODED VIEWS AND PARTS LIST
2.1 PACKING
16 4 5 6 2 3 1
15
20 13 7 12 21 19 11 11 14
8 12
10 9
4
CDX-P656,P25
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.
- PACKING SECTION PARTS LIST
Part No. CDX-P25/X1N/EW CEA1962 CBA1295 CNM5158 HMB60P500FMC HMF40P080FZK NF60FMC CEG1099 CEG1042 CHG3715 CHL3715 CHP2133 CHP2134 CNM5599 CRD2893 CRD2894 CRY1087 CRP1203 CRP1205 CXB4027 CXB3591
Mark No. 1 2 * 3 4 5 6 7 8 9 10 11 12 13 14-1 14-2
Description Screw Assy Screw Polyethylene Sheet Screw Screw Nut Polyethylene Bag Polyethylene Bag Carton Contain Box Protector Protector Seal Owner's Manual Owner's Manual
CDX-P656/X1N/UC CEA1962 CBA1295 CNM5158 HMB60P500FMC HMF40P080FZK NF60FMC CEG1099 CEG1185 CHG3713 CHL3713 CHP2133 CHP2134 CNM5599 CRD2887 Not used CRY1070 CRP1201 CRP1205 CXB4027 CXB3591
*
* 14-3 Warranty Card * 14-4 Caution Card * 14-5 Caution Card 15 Magazine Assy 16 Angle Assy 17 18 19 20 21 ····· ····· Cord Caution Card Caution Card
* *
CDE5831 CRP1090 CRP1195
CDE5830 CRP1090 CRP1195
- Owner's Manual
Model CDX-P656/X1N/UC CDX-P25/X1N/EW Part No. CRD2887 CRD2893 CRD2894 Language English, French English, Italian, French German, Dutch, Spanish
5
CDX-P656,P25
2.2 EXTERIOR
6
CDX-P656,P25
(1) EXTERIOR SECTION PARTS LIST
Mark No. 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 Description Screw Screw Button Screw Spring Connector Connector Cord ····· ····· Upper Case Arm Insulator Panel Damper Power Unit Screw Plug(CN901) Connector(CN921) Connector(CN911) Holder Holder Lower Case Unit Grille Unit Screw Part No. BMZ26P040FMC BMZ30P040FZK CAC4632 CBA1460 CBH1859 CDE5525 CDE5783
See Contrast table(2)
Mark No. 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40
Description Door Door Holder Lever Grille Screw Angle Assy CD Mechanism Module Screw Screw Sheet Transistor(Q910) Seal Double Faced Tape Batch
Part No.
See Contrast table(2) See Contrast table(2)
CNC8139
See Contrast table(2) See Contrast table(2)
HMF40P080FZK CXB3591
See Contrast table(2)
IMS20P035FZK IMS26P040FMC
See Contrast table(2)
CNB2431 CNC8058 CNM6074 CNS5216 CNV5591 CWX2299 BMZ26P060FMC CKS-460 CKS3407 CKS4072 CNC8055 CNC8056 CXB3395
See Contrast table(2)
2SD2396 CNM5599
See Contrast table(2) See Contrast table(2)
* * *
41 Caution Card
CRP1195
BPZ20P080FMC
(2) CONTRAST TABLE CDX-P656/X1N/UC and CDX-P25/X1N/EW are constructed the same except for the following:
Mark No. 8 24 26 27 29 30 33 36 39 40
Symbol and Description Cord Grille Unit Door Door Lever Grille CD Mechanism Module Sheet Double Faced Tape Batch
CDX-P656/X1N/UC CDE5831 CXB4374 CAT2045 CAT2046 CNS5392 CNS5290 CXK4805 Not used CNM6211 CAH1680
Part No. CDX-P25/X1N/EW CDE5830 CXB4383 CAT2013 CAT2014 CNS5391 CNS5292 CXK4800 CAH1682 Not used Not used
* *
7
CDX-P656,P25
2.3 CD MECHANISM MODULE
8
CDX-P656,P25
(1)CD MECHANISM MODULE SECTION PARTS LIST
Mark No. 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45
Description Connector CD Core Unit(C7) Connector(CN701) Connector(CN101) Screw Screw Screw Screw Screw Screw Screw Screw Screw Washer Spring Spring Spring Spring Spring Spring Spring Spring Spring Short Pin Volume(VR801) ····· Shaft Arm Lever Lever Lever Lever Arm Arm Holder Holder Frame Frame Lever Stopper Frame Bracket Plate Cover Sheet
Part No. CDE6069
See Contrast table(2)
CKS1953 CKS2272 BMZ20P025FMC CBA1037 CBA1041 CBA1176 CBA1362 CBA1387 CBA1470 CBA1476 CBA1486 CBF1038 CBH2172 CBH2173 CBH2174 CBH2175 CBH2285 CBH2177 CBH2178 CBL1390 CBL1392 CBL1239 CCW1023
Mark No. 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80 81 82 83 84 85 86 87 88 89 90
Description Spacer Sheet PCB PCB Ball Gear Belt Gear Gear Rail Lever Gear Arm Holder Guide Guide Holder Holder Clamper Gear Gear Holder Lighting Conductor Mechanism PCB Connector(CN801) Connector(CN802) Damper Unit Chassis Unit ····· Chassis Unit Magazine Holder Unit Frame Unit Arm Unit Screw Unit ·····
Part No. CNM6146 CNM6296 CNP5227 CNP5228 CNR1189 CNR1531 CNT1086 CNV5472 CNV5473 CNV5474 CNV5475 CNV5477 CNV5478 CNV5480 CNV5481 CNV5482 CNV5483 CNV5484 CNV5485 CNV5486 CNV5562 CNV5563 CNV5785 CWX2303 CKS1965 CKS3486 CXA7714 CXB2850 CXB2851 CXB2853 CXB4426 CXB2855 CXB2857
CLA3304 CNC7901 CNC7902 CNC7904 CNC7905 CNC7906 CNC7908 CNC7909 CNC7911 CNC7912 CNC7917 CNC7918 CNC7919 CNC7920 CNC7921 CNC8354 CNC8375 CNC8434 CNM6009
Motor Unit(M851)(SPINDLE) CXB3003
Motor Unit(M854)(CARRIAGE)
CXB3004 Screw JFZ20P025FMC Motor Unit(M853)(TRAY) CXB4421 Screw JFZ20P025FMC Motor Unit(M852)(ELV) Screw Lever Unit ····· Gear Unit CXB3006 JFZ20P025FMC CXB3938 CXB4338
9
CDX-P656,P25
Mark No. 91 92 93 94 95 96 97 98 99 100
Description Screw Pickup Unit(Service) ····· ····· Screw Screw Photo-transistor(Q851)
Spring Switch(S851,S853)
Part No. JGZ17P025FZK CXX1285
IMS26P040FMC JFZ20P025FNI PT4800 CSN1051 CN504-2 CSN1052
LED(D851) Spring Switch(S852)
(2) CONTRAST TABLE CDX-P656/X1N/UC and CDX-P25/X1N/EW are constructed the same except for the following:
Mark No. Symbol and Description 2 CD Core Unit(C7)
CDX-P656/X1N/UC CWX2261
Part No. CDX-P25/X1N/EW CWX2260
10
CDX-P656,P25
2.4 MAGAZINE ASSY
- MAGAZINE ASSY SECTION PARTS LIST
Mark No. 1 2 3 Description Magazine Assy Label Tray Part No. CXB4027 CRW1395 CNV5341
11
1
2
3
4
CDX-P656,P25
3. SCHEMATIC DIAGRAM
3.1 OVERALL CONNECTION DIAGRAM
A
Note: When ordering service parts, be sure to refer to "EXPLODED VIEWS AND PARTS LIST" or "ELECTRICAL PARTS LIST".
PICKUP UNIT(SERVICE) CXX1285
C
MECHANISM PCB
CN802 CN801 12 1
10
4
B
RF-A DSP
6 8
M854 CXB3004
13
M851 CXB3003 CSN1051
21
D
SWITCH PCB
CSN1051 CSN1052 PT4800
CN504-2
C
M853 CXB3005
E
M852 CXB3006
MOTOR PCB
1k(B)
10k
4CH SERVO DRIV
D
12
A 1/2 C D E
1 2
MOT
3 4
5
6
7
8
CDX-P656,P25
A
3 10 11 12 9
A
CD CORE UNIT
UCmodel
RF-AMP,SERVO, DSP,DAC
B
17 16 15
EW model
19 20
C
5 2
7
A 2/2
DRIVER
D
18
MOTOR DRIVER
5 6 7
A1/2
8
13
1
2
3
4
CDX-P656,P25
A
B
SYSTEM CONTROLLER A 1/2
C
D
14
1
A 2/2
2
3
4
UCmodel
EWodel
5
6
7
8
CDX-P656,P25
A
B
LER
GGC1257 (SRM2B256SLTMX70)
SRAM
CN911
IP-BUS DRIVER
B
POWER UNIT
C
UCmodel
EWodel
D
5
6
7
A 2/2
8
15
CDX-P656,P25
Note:1. The encircled numbers denote measuring pointes in the circuit diagram. 2. Reference voltage REFO:2.5V 1 CH1: RFI 1V/div. 0.5ms/div. 2 CH2: MIRR 5V/div. Test mode: Tracking open 1 CH1: RFI 1V/div. 0.5ms/div. 2 CH2: MIRR 5V/div. Normal mode: The defect part passes 800µm
- Waveforms
1 RFI 0.5V/div. 0.5µs/div. Normal mode: play
REFO REFO REFO
REFO
REFO
3 CH1: FD 0.5V/div. 0.2s/div. 4 CH2: FOR 2V/div. Test mode: No disc, Focus close
3 CH1: FD 0.5V/div. 0.2s/div. 5 CH2: FOK 2V/div. Normal mode: Focus close
6 CH1: FE 0.5V/div. 1ms/div. 7 CH2: XSI 2V/div. Normal mode: Focus close
REFO REFO REFO
REFO REFO REFO GND
8 CH1: TE 0.5V/div. 0.5ms/div. 9 CH2: TD 0.5V/div. Test mode: 32 tracks jump (REV)
8 CH1: TE 0.5V/div. 0.5ms/div. 9 CH2: TD 0.5V/div. Test mode: Single jump (REV)
8 CH1: TE 0.5V/div. 5ms/div. 9 CH2: TD 0.5V/div. Test mode: 100 tracks jump (REV)
REFO
REFO
REFO
REFO
REFO
REFO
6 CH1: FE 0.1V/div. 3 CH2: FD 0.2V/div. Normal mode: Play
20ms/div.
3 CH1: FD 0.5V/div. 0.5s/div. 0 CH2: MD 1V/div. Normal mode: Focus close (12cm)
3 CH1: FD 0.5V/div. 0.5s/div. 0 CH2: MD 1V/div. Normal mode: Focus close (8cm)
REFO
REFO
REFO
REFO
REFO
REFO
16
CDX-P656,P25
8 CH1: TE 0.2V/div. 9 CH2: TD 0.2V/div. Normal mode: play
20ms/div.
8 CH1: TE 0.5V/div. 5ms/div. ! CH2: SD 0.5V/div. TEST mode:100Tracks jump(FWD)
0 MD
0.5V/div.
0.1s/div.
Normal mode: Play (12cm)
REFO
REFO REFO
REFO
REFO
0 MD
1V/div.
10ms/div.
@ EFM
1V/div.
5µs/div.
Long Search (12cm)
Normal mode: Play
8 CH1: TE 1V/div. 2ms/div. # CH2: TEC 1V/div. Test mode: Focus close Tracking open
REFO REFO REFO REFO GND
8 CH1: TE 0.5V/div. 0.2s/div. 6 CH2: FE 0.5V/div. Normal mode: AGC after focus close
% SCKO
2V/div.
1µs/div.
^ DOUT
2V/div.
10µs/div.
Normal mode: Play
Normal mode: Play
REFO
REFO
REFO GND
REFO GND
& LRCK 2V/div. Normal mode: Play
20µs/div.
* VD
5V/div.
50ms/div.
Normal mode: No disc
GND REFO GND
17
CDX-P656,P25
( CH1: R OUT 2V/div. 500µs/div. ) CH2: L OUT 2V/div. Normal mode: Play (1kHz 0dB)
6 CH1: FE 0.2V/div. 1ms/div. 3 CH2: FD 0.5V/div. Normal mode: During AGC
8 CH1: TE 0.2V/div. 1ms/div. 9 CH2: TD 0.5V/div. Normal mode: During AGC
REFO REFO REFO
REFO
REFO
REFO
1 CH1: RFI 1V/div. 0.5ms/div. / CH2: HOLD 5V/div. Normal mode: The defect part passes 800µm(B.D)
3 CH1: FD 1V/div. 0.5ms/div. / CH2: HOLD 5V/div. Normal mode: The defect part passes 800µm(B.D)
9 CH1: TD 0.1V/div. 0.5ms/div. / CH2: HOLD 5V/div. Normal mode: The defect part passes 800µm(B.D)
REFO
REFO
REFO
REFO
REFO REFO
18
220000/5R5
8V REG.
HZS6L(B1)
1SR139-400
470/16
470/16
CTH1047 1mH
1SR139-400
3.2 POWER UNIT
CEK1018
1
1
2
2
3 Yellow 3
CDX-P656,P25
B
A
4 4 19 B C D A
B
MUTE
1
2
3
4
CDX-P656,P25
4. PCB CONNECTION DIAGRAM
4.1 CD CORE UNIT
NOTE FOR PCB DIAGRAMS
A
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.
M852 ELV M
CN801
C
SIDE A
E
B
EPVO
RERO
F
C
CD CORE UNIT
D
20
A
1
A
2
B
CN911
3
EREF
4
1
2
3
4
CDX-P656,P25
2. Viewpoint of PCB diagrams
Connector Capacitor
SIDE B
SIDE A
A
P.C.Board
Chip Part
SIDE B
B
MAG C
RESET
CD CORE UNIT
EJECT
A
D
1
2
3
A
4
21
1
2
3
4
CDX-P656,P25
4.2 POWER UNIT
A
SIDE A
B
POWER UNIT CORD
IP-BUS
B
C
A
CN701
D
22
B
1
2
3
4
1
2
3
4
CDX-P656,P25
A
SIDE B
B
POWER UNIT
B
C
D
1
2
3
B
4
23
1
2
3
4
CDX-P656,P25
4.3 MECHANISM PCB
A
C
MECHANISM PCB
HOME
M851 SPDL M
PICKUP UNIT (SERVICE)
M854 CRG M
B
A
CN101
E D
4.4 SWITCH PCB
C
D
SWITCH PCB
DSP TRP D851
C
D
24
1
C D
2
3
4
1
2
3
4
CDX-P656,P25
4.5 MOTOR PCB
E
C
MOTOR PCB
A
B
C
D
1
2
3
E
4
25
CDX-P656,P25
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 --- ----------------------------------------------R R R R R R R R R R R R R R R R R R R R R R R R R R R R R R R R R R R R R R R R R R R R R R R R R R R R R R R 259 260 298 301 302 303 304 305 306 307 308 309 311 501 651 652 653 654 659 660 661 662 663 664 665 666 669 670 671 672 673 701 702 703 704 705 706 707 708 709 710 713 715 716 717 718 719 721 722 724 725 726 727 729 730 Part No. ------------------------RS1/16S102J RS1/16S681J RS1/16S681J RS1/16S103J RS1/16S153J RS1/16S103J RS1/16S153J RS1/16S103J RS1/16S752J RS1/16S103J RS1/16S752J RA4C332J RS1/16S102J RS1/16S102J RSK1/16S153J RSK1/16S153J RSK1/16S153J RSK1/16S153J RSK1/16S123J RSK1/16S123J RSK1/16S123J RSK1/16S123J RSK1/16S103J RSK1/16S103J RSK1/16S103J RSK1/16S103J RS1/16S101J RS1/16S101J RS1/16S752J RS1/16S103J RS1/16S271J RS1/16S681J RS1/16S102J RS1/16S222J RS1/16S104J RS1/16S104J RS1/16S222J RS1/16S104J RS1/16S0R0J RS1/16S104J RS1/16S473J RS1/16S473J RS1/16S473J RS1/16S103J RS1/16S473J RS1/16S681J RS1/16S0R0J RS1/16S222J RS1/16S222J RS1/16S681J RS1/16S222J RS1/16S104J RS1/16S513J RS1/16S473J RS1/16S473J
A
IC IC IC IC IC IC IC IC IC IC IC IC Q Q Q Q D D D D X X S S S VR
Unit Number : CWX2261(CDX-P656/X1N/UC) CWX2260(CDX-P25/X1N/EW) Unit Name : CD Core Unit
MISCELLANEOUS 201 202 301 302 501 603 604 701 702 703 704 705 101 701 770 771 201 601 730 770 202 701 801 802 803 802 IC IC IC IC IC(UC model) IC IC IC IC (SRM2B256SLTMX70) IC IC IC Transistor Transistor Transistor Transistor Diode Diode Diode Diode Ceramic Resonator 16.93MHz Ceramic Resonator 10.00MHz Push Switch(EJECT) Push Switch(RESET) Spring Switch(MAG) Semi-fixed 1k(B) UPD63710GC BA05FP BA5986FM LB1836M PD4501B BA4560F BA4560F PD5513A GGC1257 HA12187FP PAJ002A TC7SH32FU 2SB1132 DTA144EK 2SB1184F5 2SC2412K 1SR154-400 UDZ7R5(B) 1SS356 1SS355 CSS1456 CSS1476 CSG1076 CSG1076 CSN1044 CCP1338
RESISTORS R R R R R R R R R R R R R R R R R R R R 101 102 103 201 202 205 206 207 208 212 213 214 215 216 217 253 254 256 257 258 RS1/8S120J RS1/8S100J RS1/16S222J RS1/16S104J RS1/16S0R0J RS1/16S103J RS1/16S393J RS1/16S182J RS1/16S304J RS1/16S0R0J RS1/16S103J RS1/16S103J RS1/16S123J RS1/16S273J RS1/16S273J RS1/16S681J RS1/16S681J RS1/16S681J RS1/16S681J RS1/16S681J
(EW model)
(UC model) (EW model)
26
CDX-P656,P25
=====Circuit Symbol and No.===Part Name --- ----------------------------------------------R R R R R R R R R R R R R R R R R R R R R R R R R R R R R R R R 731 732 733 734 735 736 737 738 739 740 741 742 743 744 745 747 750 751 752 753 754 755 756 759 760 761 764 801 802 804 805 806
Part No. ------------------------RS1/16S222J RS1/16S683J RS1/16S222J RS1/16S473J RS1/16S222J RS1/16S103J RS1/16S433J RS1/16S104J RS1/8S2R0J RS1/8S2R0J RS1/16S102J RS1/16S104J RS1/16S104J RS1/16S223J RS1/16S104J RS1/16S472J RA4C473J RA4C473J RN1/16SE3602D RN1/16SE6801D RS1/16S221J RS1/16S104J RS1/16S221J RS1/16S472J RS1/16S104J RS1/16S104J RS1/16S473J RS1/10S221J RS1/10S271J RS1/16S562J RS1/16S562J RS1/16S102J
=====Circuit Symbol and No.===Part Name --- ----------------------------------------------C C C C C C C C C C C C C C C C C C C C C C C C C C C C C C C C 302 501 502 651 652 653 654 655 656 661 664 665 666 701 702 703 707 708 710 711 712 714 715 717 718 719 720 721 722 801 802 803 Unit Number : CWX2299 Unit Name : Power Unit (UC model) (UC model)
Part No. ------------------------CKSQYB224K16 CKSQYB104K25 CKSRYB471K50 CCSRCH391J50 CCSRCH391J50 CCSRCH181J50 CCSRCH181J50 CCSRCH181J50 CCSRCH181J50 CKSQYB104K25 CKSRYB103K25 CEV470M6R3 CKSRYB103K25 CKSRYB103K25 CKSQYB473K16 CKSQYB473K16 CKSRYB103K25 CKSQYB104K25 CKSRYB103K25 CKSRYB102K50 CKSRYB102K50 CKSQYB104K25 CSZST220M16 CKSRYB103K25 CKSRYB103K25 CKSRYB102K50 CKSRYB102K50 CKSRYB103K25 CKSRYB103K25 CKSRYB103K25 CKSQYB104K25 CKSRYB103K25
CAPACITORS C C C C C C C C C C C C C C C C C C C C C C C C C C C C C C 101 102 103 104 105 106 107 201 202 203 204 205 206 207 208 209 210 211 212 213 215 216 217 218 220 253 271 272 273 301 CKSRYB102K50 CKSQYB104K25 CEV101M6R3 CEV470M6R3 CKSQYB334K16 CKSQYB334K16 CKSQYB334K16 CKSQYB104K25 CEV101M6R3 CKSQYB104K25 CKSRYB332K50 CKSQYB104K25 CKSRYB392K50 CKSQYB224K16 CCSRCH270J50 CCSRCJ3R0C50 CCSRCH221J50 CCSRCH101J50 CKSRYB682K50 CKSQYB104K25 CKSQYB104K25 CKSQYB104K25 CKSQYB104K25 CKSQYB104K25 CKSQYB104K25 CKSRYB471K50 CEV101M6R3 CCH1300 CKSQYB334K16 CEV101M10
B
Q Q Q Q Q D D D D L
MISCELLANEOUS 910 911 912 941 942 901 902 910 941 901 Transistor Transistor Transistor Transistor Transistor Diode Diode Diode Diode Choke Coil 1mH 2SD2396 IMD2A IMX1 FMG12 IMD2A 1SR139-400 1SR139-400 HZS6L(B1) MA152WA CTH1047
RESISTORS R R R R R R R R R R R R R R R R R 901 902 910 911 912 913 914 915 921 922 923 924 941 942 943 944 945 RS1/10S204J RS1/10S104J RS1/8S431J RS1/10S681J RS1/8S101J RS1/10S512J RS1/10S132J RD1/4PU151J RS1/10S101J RS1/10S101J RS1/10S102J RS1/10S473J RS1/10S112J RS1/10S112J RS1/10S362J RS1/10S362J RS1/10S222J
33µF/10V
27
CDX-P656,P25
=====Circuit Symbol and No.===Part Name --- ----------------------------------------------CAPACITORS C C C C C C C C C C C 901 902 903 904 906 910 911 912 913 941 942 Unit Number Unit Name 851 853 : : Mechanism PCB 470µF/16V 470µF/16V 0.22F/5.5V
Part No. -------------------------
CKSQYB104K50 CCH1183 CKSQYB223K25 CCH1183 CCL1037 CKSQYB103K50 CKSQYB103K50 CEJA220M10 CKSQYB103K50 CEJA330M10 CEJA330M10
C
Q S
Photo-transistor Spring Switch(HOME)
PT4800 CSN1051
D
D S S
Unit Number : Unit Name : Switch PCB 851 851 852 LED Spring Switch(DSP) Spring Switch(TAP) CN504-2 CSN1051 CSN1052
E
M M M M VR
Unit Number : Unit Name : Motor PCB 853 Motor(TRAY) CXB3005
Miscellaneous Parts List
851 852 854 801 Pickup Unit(P8)(Service) Motor(SPINDLE) Motor(ELV) Motor(CARRIAGE) Volume 10k CXX1285 CXB3003 CXB3006 CXB3004 CCW1023
28
CDX-P656,P25
6. ADJUSTMENT
6.1 CHECKING THE GRATING
- Checking the Grating After Changing the Pickup Unit
· 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 · Measuring Points · Disc · Mode
· Oscilloscope, Two L.P.F. · E, F, REFO · ABEX TCD-784 · TEST MODE
CD CORE UNIT
E F REFO F E L.P.F.
100k 390pF
Xch
Ych
Oscilloscope
L.P.F.
100k 390pF
· 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".
29
CDX-P656,P25
Grating waveform
Echt Xch 20mV/div, AC Fcht Ych 20mV/div, AC 30°
0°
45°
60°
75°
90°
30
CDX-P656,P25
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
· 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.)
CD CORE UNIT
Oscilloscope EREF L.P.F.
47k 1µF
EPVO
· Confirmation Procedure 1. Enter Test mode, then select Multi-CD player. 2. Press key 7 to enter Mechanism Test mode.
Examples of display
TRACK FUNCTION
'
TRACK
"
FUNCTION
3. Press key 12 twice to specify the amount of movement. The amount of movement changes each time key 12 is pressed. maximum movement i Key 12 i during movement Key 12 i Key 12 i minimum movement i i
72
00' 00"
TRACK
FUNCTION
72
TRACK
00' 02"
FUNCTION
72
TRACK
00' 01"
FUNCTION
72
00' 00"
31
CDX-P656,P25
Examples of display 4. Press key 9 to set ELV/TRAY mode to TRAY.
TRACK FUNCTION
72
5. Press key FF to release the clamp and return the tray to the magazine.
01' 02"
Release the clamp
6. Press key 9 to enter Elevation Move mode.
TRACK
FUNCTION
72
7. Use key FF/REV to operate elevation and set if to the graduation of the third 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.3. Check if the stopper bend of the clamp lever is engaged in the groove of the frame stopper (Fig. 2-4).
TRACK
00' 02"
FUNCTION
72
TRACK
00' 02"
FUNCTION
'
TRACK
"
FUNCTION
04
00' 00"
· 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.
32
CDX-P656,P25
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 sixth step by 0.1 mm, reduce the voltage of EREF (adjusted in step 8) by 20 mV. If the stopper bend has been dislocated in the direction of the sixth 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 20 mV.
L.P.F.
VR802
EREF GND
47k 1µF
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 and fourth CDs. 19. If the mechanism operates properly, adjustment is completed. If the mechanism operates improperly, make the adjustment again.
Oscilloscope
33
CDX-P656,P25
Stopper bend of the clamp lever
NG
Frame stopper
Dislocated toward the first CD. Fig. 2 6 4 3 2 1 E Adjust the insertion gate of magazine to the third scale. Fig. 1
OK
Engaged in the center and pressed downward. Fig. 3
NG
Dislocated toward the sixth CD. Fig. 4
34
CDX-P656,P25
7. GENERAL INFORMATION
7.1 IC
- Pin Functions (UPD63710GC)
Pin No. 1 2 3 4 5 6 7 8 9 10 11 12 13 14, 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 Pin Name GND HOLD MIRR FOK rst A0 stb sck SO SI VDD DA.VDD NC DA.GND NC DA.VDD R+ RLL+ X.VDD xtal XTAL X.GND VDD EMPH FLAG DIN DOUT SCKIN SCKO LRCKIN LRCK WDCK TX GND C16M LIMIT VDD LOCK RFCK WFCK PLCK GND C1D1 C1D2 C2D1 C2D2 C2D3 VDD I/O I/O I/O O I I I I O I Function and Operation Logic circuit GND Defect detection output MIRR output RFOK signal output Reset signal input Command/parameter identification signal input Data strobe signal input Clock signal input for serial data input/output Serial data and status signal output Serial data input Positive power supply terminal to logic circuit Positive power supply terminal to D/A converter Not used D/A converter GND Not used Positive power supply terminal to D/A converter Right channel audio data output Right channel audio data output Left channel audio data output Left channel audio data output Positive power supply terminal to crystal oscillation circuit Crystal oscillator connect pin Crystal oscillator connect pin Crystal oscillation circuit GND Positive power supply terminal to logic circuit Output pin for the pre-emphasis data in the sub-Q code Flag output pin to indicate that audio data currently being output consists of noncorrectable data Serial data input to internal DAC Serial audio data output Serial clock input to internal DAC Audio data that is output from DOUT changes at rising edge of this clock LRCK signal input to internal DAC Signals to distinguish the right and left channels of the audio data output from DOUT Output double the frequency of LRCK Digital audio interface data output Logic circuit GND Oscillator clock buffering output Status of the pin is output at Bit 5 of the status output Positive power supply terminal to logic circuit EFM synchronous detection signal Frame synchronous signal of XTAL-system Frame synchronous signal of PLL-system Monitor pin of bit clock Logic circuit GND Output pin for indicating the C1 error correction results Output pin for indicating the C1 error correction results Output pin for indicating the C2 error correction results Output pin for indicating the C2 error correction results Output pin for indicating the C2 error correction results Positive power supply terminal to logic circuit
O O O O O I
O O I O I O I O O O O I O O O O O O O O O
35
CDX-P656,P25
Pin No. 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80 81 82 83 84 85 86 87 88 89 90 91 92 93 94 95 96 97 98 99 100
Pin Name PACK TSO TSI tsck TSTB GND TEST ATEST RFMODE A.GND FD TD SD MD DACO FBAL TBAL TEVCA A.VDD EFM ASY C3T RFI AGCO AGCI RFO EQ2 EQ1 RFA.GND A C B D F E A.VDD REFOUT FEFEO TETEO TE2 TEC A.GND PD LD PN A.VDD
I/O O O I I I I I/O I O O O O O O O O O I I O I O
I I I I I I I O I I/O I I/O I/O I I O I
Function and Operation CD-TEXT PACK synchronous signal CD-TEXT data serial output CD-TEXT control parameter serial input CD-TEXT serial clock input CD-TEXT parameter strobe signal input Logic circuit GND Test pin Test pin Use/not use select for internal RF amplifier Analog circuit GND Focus drive output Tracking drive output Sled drive output Spindle drive output DAC output for adjustment DAC output for adjustment DAC output for adjustment DAC output for adjustment Power supply terminal to analog circuit EFM signal output EFM comparator reference voltage input 3T detection capacitor additional pin RF signal input for EFM data regulation RF signal output of after gain adjustment RF-AGC amplifier input RF summing amplifier output RF amplifier equalizer parts additional pin RF amplifier equalizer parts additional pin RF summing amplifier inverted input Analog circuit GND Photo detector A input Photo detector C input Photo detector B input Photo detector D input Photo detector F input Photo detector E input Positive power supply terminal to analog circuit Reference electric potential output Focus error amplifier inverted input Focus error amplifier output Tracking error amplifier inverted input Tracking error amplifier output Tracking error output of after amplification Tracking comparator input Analog circuit GND PD detection signal input for LD output monitor LD control current output APC circuit control polarity set pin Positive power supply terminal to analog circuit
36
CDX-P656,P25
*UPD63710GC
25 20 26 21
80 100
IC's marked by* are MOS type. Be careful in handling them because they are very liable to be damaged by electrostatic induction.
1
BA05FP
50 40 51 41 75 60 76 61
VCC +
Reference voltage 1 Vcc 2 GND 3 OUT
BA5986FM
OPIN2(+) 5 OPIN1(+) 2 OPOUT2 7 OPOUT1 4
OPIN1(-) 3
OPIN2(-) 6
BIAS IN 1
PowVcc 10
VO1(+) 14 15 VO4(+)
VO2(+) 12
Level shift
Level shift Level shift
VO1(-) 13 16 VO4(-)
Level shift
VO2(-) 11
Mute
Stand-by
MUTE 9
GND 8
17 VO3(+)
18 VO3(-)
19 PowVcc
26 OPIN4(-)
24 OPIN3(+)
20 STBY
27 OPIN4(+)
25 OPOUT4
28 PreVcc
23 OPIN3(-)
22 OPOUT3
21 GND
37
CDX-P656,P25
- Pin Functions (PD5513A)
Pin No. 1,2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27,28 29 30 31,32 33 34 35 36 37 38 3943 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 Pin Name NC adena TXTSTE TXTSO TXTSI TXTSCK BYTE CNVSS POWER CONT reset XOUT VSS XIN VCC nmi bsens asens TXTPACK IPTA4IN ippw NC CSEL SRAMSW CCS NC IPIN IPOUT NC FMIPSW testin XSO XSI XSCK M6M12 NC rd NC wr NC cs XA0 xstb xrst MIRR LOCK FOK NC A11 A9 A8 A13 A14 A12 VCC A7 VSS I/O O O O I O I I O O I O I I I I I I O I I O I O I I O I O I O O O O O O I I I I O O O O O O Format C C C C Function and Operation Not used A/D reference voltage output TEXT parameter output TEXT control parameter serial output TEXT data serial input TEXT clock output VCC joint VSS joint CD +5V control Servo driver output control Reset input Crystal oscillating element connection pin GND Crystal oscillating element connection pin VDD Pull up Back Up sense input ACC power sense input TEXT PACK interrupt input IPIN joint Power supply control output for IP BUS interface IC Not used Compression select When there is SRAM,"H" IP-BUS chip select Not used Data input from IP BUS interface IC Data output for IP BUS interface IC Not used FM/IP BUS select switch Test program mode input LSI data output LSI data input LSI clock output 6/12 disc select input Not used SRAM enable output Not used SRAM write enable output Not used SRAM chip select Control signal distinguishing data from microcomputer CD LSI strobe output CD LSI reset output Mirror detector input Spindle lock detector input FOK signal input Not used Address BUS input SRAM address bus output SRAM address bus output SRAM address bus output SRAM address bus output SRAM address bus output VDD SRAM address bus output GND
C C
C
C
C
NM NM
C C C C C
C C C C C C
38
CDX-P656,P25
Pin No. 6568 69 70 71 72 73 74 75 77 78 79 80 8188 89,90 91 92 93 94 95 96 97 98 99 100
Pin Name A6-A3 A10 A2 & (EPSK) A1 & (EPDI) A0 & (EPDO) NC ejsw mag NC I13 I2 I4 D0-D7 NC DSP disk ELVPVO ELVREF TRP AVSS VDIN VREF AVCC EPCS
I/O O O O O/I O I I O O O I/O I I I I I I I I/O
Format C C C C C
C C C C
C
Function and Operation SRAM address bus output SRAM address bus output SRAM address bus output and (E2PROM clock output) SRAM address bus output and (E2PROM data input) SRAM address bus output and (E2PROM data output) Not used Eject key switch interrupt input Magazine lock switch interrupt input Not used Motor driver control output Motor driver control output Motor driver control output SRAM data bus Not used DISC detect timing input Disc detector input Voltage input from ELV position sense ELV reference voltage input Tray position input A/D GND Power supply short sensor input A/D converter reference voltage input A/D VCC E2PROM detect input , Chip select output
*PD5513A
31 21 100 80
Format C NM
Meaning C MOS Middle resistivity N channel open drain
30 20
50 40 51 41 80 60
1 1 81 61
TC7SH32FU
1 IN B
5 VCC
2 IN A
3 GND
4 OUT Y
39
CDX-P656,P25
7.2 DIAGNOSIS 7.2.1 DISASSEMBLY
- Removing the Upper Case(not shown) 1. Remove the night screws. 2. Remove the Upper Case. - Removing the CD Mechanism Module CD Mechanism Module
Remove the four dampers(Fig.5). Disconnect the connector(Fig.5). Remove the two springs(Fig.5).
Fig.5
Disconnect the connector and then remove the CD Mechanism Module(Fig.6). - Removing the Grille Unit(not shown) 1. Press the two tabs indicated by arrows and then pull out the Grille Unit.
Fig.6
- Removing the Power Unit(Fig.7) Remove the two screws.
Remove the screw.
Remove the claw and remove the Power Unit.
Power Unit
Fig.7
40
CDX-P656,P25
- Removing the Pickup Unit
1. Insert the short pin from the pickup unit in the flexible substrate. 2. Remove the flexible substrate from the connector. 3. Remove the flexible card from the connector. 4. Remove the lead wires to which the spindle motor and carriage motor assy were soldered. 5. Remove the two screws and lift the relay substrate up as shown in the figure on the upper right. At this time, make sure that the flexible tray motor printed circuit board and flexible relay card are not pulled excessively. Flexible card Erect Short Pin Relay substrate Flexible PCB (handle with care)
Flexible relay card (handle with care)
Fig.8
6. Remove screw A and then remove the carriage motor assy, lighting conductor, feed screw holder, feed screw and belt (see Fig. 9). 7. Remove screw B on the main side and the pickup unit together with the guide shaft (see Fig. 9). Screw A Motor bracket CRG motor Feed screw Lighting conductor
Screw A Guide shaft (main) Pickup unit Belt Screw B Feed screw holder
Guide shaft (sub)
Fig.9
41
CDX-P656,P25
7.2.2 TEST MODE
- CD Test Mode
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 inside (12 keys type) BAND TRK+/FF TRK-/REV 7 8 9 10 11 12 DISCSOURCE ON/OFF
HEAD UNIT (6 keys type) BAND TRK+/FF TRK-/REV 1 2 3 4 5 6 DISCSOURCE ON/OFF
42
CDX-P656,P25
- Flow Chart
4
Test Mode In
6
Reset
Sourse CD
SOURCE
New test mode
BAND
Power ON (Adjustment for T.Offset)
TRK MIN SEC
9
8 *1
12
Display
00 00 00
Power ON (Not adjustment for T.Offset)
TRK MIN SEC
RF AMP Gain Select
TRK MIN SEC
Display Power OFF
99 99 99
GG GG GG
BAND
Focus Close/ S Curve Check
TRK MIN SEC
9
Focus Mode Select
12 *2
7
TRK+ *8
TRK*8
CRG-
SEC TRK MIN SEC
8 *3
Auto Adjustment Display Select
SEC TRK MIN SEC TRK
CRG+
MIN
TRK
MIN
Display
91 91 91
Display
0x 0x 0x
00 00 00
or
TRK MIN SEC
00 00 00
or
TRK MIN SEC
00 00 00
or
TRK MIN SEC
99 99 99
Power OFF
99 99 99
99 99 99
BAND
T.Close and F,T AGC and RF AGC and Fit Servo
7
12
9
TRK+
TRK-
8
T. Close and Fit Servo
RF AGC Coefficient Display/ Rough Servo and RF AGC
TRK
CRG+
MIN SEC
CRG-
TRK MIN SEC
T.Balance Adjustment
Display
8x 8x 8x
or
TRK MIN SEC
8x 8x 8x
or
TRK MIN SEC
9x 9x 9x
Power OFF
9x 9x 9x
Tracking Open
BAND
7 *7
F, T, RF AGC/ F.Bias Display Select
9
12 *5
TRK+
TRK-
8
*4 CRG-/TR Jump- *4
CRG+/TR Jump+
F, T AGC and RF AGC
CRG/TR Jump NO. Select
*6
TRK MIN SEC
Power OFF
Display
8x 8x 8x
or
TRK MIN SEC
BAND
Tracking Open
TRK MIN
8
9x 9x 9x
SEC
Display
TRK MIN SEC
8x 8x 8x
or
TRK MIN SEC
7
< Mechanism test mode in >
72 00 00
Display
9x 9x 9x
TRK
MIN
SEC
9
*9
12
*10
FF
*11
REV
*12
BAND
Display
*1 Display *2 Display
TYP
+6dB 06 06 06
+12dB 12 12 12 S Curve Check 01 01 01
*7
TRK, MIN, SEC
F.AGC Gain
T.AGC Gain
RF AGC Gain
(F,T.AGC Gain = (Present Value/Initial Value) × 20) *8 Voltage of CRG Motor = 2 [V] *9 ELV motor select 72 *10 00 0X TRAY motor select 72 10 0X DC drive 72 00 02
Focus Close 00 00 00 (99 99 99)
*3
F.Offset Display
RF.Offset Display
F.Cansel Display
Display
F.Cancel Value = {Top Rank 8bit of Set Value (7F [H] to 80 [H] ) + 128} / 4 = 63 [D] to (32 [D] ) to 00 [D] *4 Single TR/32TR/100TR *5 Single TR Display 9x(8x):91(81) 32TRK 92(82) 100TRK 93(83) CRG Move 94(84)
8ms pulse drive 72 00 00
24ms pulse drive Display 72 00 01
48ms pulse drive 72 *11 *12 10 00
100ms pulse drive 10 01 72
DC drive 10 02
Display 72
*6 CRG Move, 100TR Jump Only
ELV select : ELV dowm (Disc 12 1) TRAY select : TRAY out ELV select : ELV up (Disc 1 TRAY select : TRAY in
12)
43
CDX-P656,P25
- 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 ERRORxx 6-digit display ERRxx OR Errxx 4-digit display Exx
* 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 12 Electricity Electricity Focus Servo NG Spindle Lock NG Subcode NG Focusing not available. Stains on rear side of disc or excessive vibrations on REWRITABLE. Spindle not locked. Sub-code is strange (not readable). Failure on spindle, stains or damages on disc, or excessive vibrations. A disc not containing CD-R data is found. Turned over disc are found, though rarely. Failure on home switch or CRG move mechanism. An appropriate RF AMP gain can't be determined. CD signal error. APC protection doesn't work. Focus can be easily lost. Damages or stains on disc, or excessive vibrations. Failed to reach target address. CRG tracking error or damages on disc. Power (VD) is ground faulted. Failure on SW transistor or power supply (failure on connector). Mechanism elevation reference voltage is out of prescription. EREF adjustment VR and/or power abnormal. MAG switch release time has time out. Elevation time out when eject. Tray in / out time has time out. Tray is caught when put in.
RF AMP NG 17 30 A0 A1 Electricity Electricity System System Setup NG Search Time Out Power Supply NG Mechanism power failure An error upon ejection An error while putting in and out the tray
50 60
Mechanism Mechanism
44
CDX-P656,P25
Class Displayed error code Description of the code and potential cause(s) MechaAn error upon Elevation time has time out. nism elevation 80 MechaAn 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.
Code 70
- 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 (Example) Power Off Power On BAND To power on To power off (offset adjustment performed) UP FWD-Kick DOWN REV-Kick 7 T.Close (AGC performed) /parameter display switching 8 RF AMP gain switching Parameter display switching /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 /T.Close (no AGC)/Jump switching
In-play FF/TR+ REV/TRScan Mode
New test mode Error Production Time/Err.No. switching
Auto/Manu T.No./Time switching
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CDX-P656,P25
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 40 Electricity Off focus detected. 41 42 43 Electricity Electricity Electricity Spindle unlocked. Sub-code unreadable. Sound skipping detected.
Description and cause FOK goes low. Damages/stains on disc, vibrations or failure on servo. FOK = Low continued for 50 msec. Damages/stains on disc, vibrations or failure on servo. Sub-code was unreadable for 50 msec. Damages/stains on disc, vibrations or failure on servo. 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 00 CD+5V ON process in progress. 01 Servo LSI initialization (1/3) in progress. 02 Servo LSI CRAM initialization in progress. 03 Servo LSI initialization (2/3) in progress. 04 Offset adjustment (1/3) in progress. 05 Offset adjustment (2/3) in progress. 06 Offset adjustment (3/3) in progress. 07 FZD adjustment in progress. 08 Servo LSI initialization (3/3) in progress. 10 Carriage move to home position started. 11 Carriage move to home position started. 12 Carriage is moving toward inner diameter. 13 14 15 20 21 22 23 24 25 Carriage is moving toward outer diameter. Carriage outer kick in progress. Carriage outer diameter feed (1 second) in progress. Servo close started. Pre-processing for focus search started. Spindle rotation and focus search started. Waiting for focus close (XSI=Low). Standing by after focus close is over. Focus search preprocessing is in progress while setup protection is turned on.
Protective action None None None None None None None None None None None Specified 10 seconds has been passed or failure on home switch. Specified 10 seconds has been passed or failure on home switch. None None None None None Specified focus search time has been passed. Specified focus search time has been passed. None
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CDX-P656,P25
Status No. Contents 26 Focus search preprocessing is in progress while focus recovery is turned on. 27 Wait time after focus close is set up. 28 Standing by after focus close is over. 29 Setup (1/2) before T balance adjustment is started. 30 Setup (2/2) before T balance adjustment is started. 31 T balance adjustment started. 32 T balance adjustment (1/2). 33 T balance adjustment (2/2). 34 Waiting for spindle rotation to end. Spindle rough servo. 35 Standing by after spindle rough servo is over. 36 RF AGC started. 37 RF AGC started. 38 RF AGC ending process in progress. 39 Tracking close in progress. 40 Standing by after tracking is closed. Carriage closing in progress. 41 Focus/tracking AGC started. 42 Focus AGC started. 43 Focus AGC in progress. 44 Tracking AGC in progress. 45 Standing by after focus/tracking AGC are over. 46 Spindle processes applicable servo. 47 Check for servo close is started. 48 Check of LOCK pin started. 49 RF AGC started. 50 RF AGC in progress. 51 Standing by after RF AGC is over. (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.
Protective action None Off focus. Off focus. Off focus. Off focus. Off focus. Off focus. Off focus. Off focus. Off focus. Off focus. Off focus. Off focus. Off focus. Off focus. Off focus. Off focus. Off focus. Off focus. Off focus. Off focus. Off focus. Off focus or spindle not locked. Off focus. Off focus. Off focus.
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. 12 MIN. 34' SEC. 56"
(B) Error No. display An example: Error #40 (Off focus is detected) ERROR-40
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CDX-P656,P25
7.3 BLOCK DIAGRAM
C
A
D
E
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CDX-P656,P25
B
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CDX-P656,P25
8. OPERATIONS AND SPECIFICATIONS 8.1 OPERATION
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 clear button on the multi-CD controller, too, after pressing this button. · If the clear 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.
Clear button
8.2 SPECIFICATIONS
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 DC (10.8 -- 15.1 V allowable) Max. current consumption ........................................................... 1.0 A Weight ............................................................................ 1.9 kg (4.2 lbs.) Dimensions .......................................... 248 (W) × 66 (H) × 169 (D) mm [9-3/4 (W) × 2-5/8 (H) × 6-5/8 (D) in.]
Audio
Frequency characteristics ................................ 5 -- 20,000 Hz (± 1 dB) Signal-to-noise ratio ............................ 92 dB (1 kHz) (IHF-A Network) Distortion ................................................................................... 0.005 % Dynamic range ................................................................. 90 dB (1 kHz) Output level ...................................................... 1,000 mV (1 kHz, 0 dB) Number of channels .............................................................. 2 (stereo)
Note:
Specifications and design are subject to possible modification without prior notice due to improvements.