Pioneer CDX-P1270 Setup guide

PIONEER CORPORATION 4-1, Meguro 1-Chome, Meguro-ku, Tokyo 153-8654, Japan
PIONEER ELECTRONICS SERVICE INC. P.O.Box 1760, Long Beach, CA 90801-1760 U.S.A.
PIONEER EUROPE NV Haven 1087 Keetberglaan 1, 9120 Melsele, Belgium
PIONEER ELECTRONICS ASIACENTRE PTE.LTD. 253 Alexandra Road, #04-01, Singapore 159936
C PIONEER CORPORATION 2000 K-ZZY. DEC. 2000 Printed in Japan
ORDER NO.
CRT2591
MULTI-COMPACT DISC PLAYER
CDX-P1270 X1N/UC
Service
Manual
CDX-P1270/X1N/UC
-This service manual should be used together with the following manual(s):
Model No. Order No. Mech. Module Remarks
CX-938 CRT2357 C8 CD Mech. Module:Circuit Description, Mech. Description, Disassembly
CONTENTS
1. SAFETY INFORMATION ............................................3
2. EXPLODED VIEWS AND PARTS LIST.......................4
3. BLOCK DIAGRAM AND SCHEMATIC DIAGRAM ...12
4. PCB CONNECTION DIAGRAM ................................22
5. ELECTRICAL PARTS LIST ........................................28
6. ADJUSTMENT..........................................................31
7. GENERAL INFORMATION .......................................40
7.1 DIAGNOSIS ........................................................40
7.1.1 TEST MODE..............................................40
7.1.2 DISASSEMBLY .........................................44
7.1.3 CONNECTOR FUNCTION DESCRIPTION46
7.2 IC .........................................................................47
7.3 OPERATIONAL FLOW CHART...........................49
8. OPERATIONS AND SPECIFICATIONS.....................50
CDX-P1270 X1N/EW
CDX-P1270 X1N/ES

2
CDX-P1270
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.
Transport screw
Attach to the original position before transporting the set.
Seal
After removing the transport screw, cover the hole
with the supplied seal.
-CD Player Service Precautions
1. For pickup unit(CXX1285) handling, please refer
to"Disassembly"(see page 44).
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 con-
nector is plugged or unplugged.
3. Please checking the grating after changing the ser-
vice pickup unit(see page 34).
4. Since these screws protects the mechanism during
transport, be sure to affix it when it is transported for
repair, etc.

3
CDX-P1270
-CDX-P1270/X1N/EW
1. Safety Precautions for those who Service 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.
CLASS 1
LASER PRODUCT
4. Specifications of Laser Diode
Specifications of laser radiation fields to which human access is possible during service.
Wavelength = 800 nanometers
1. SAFETY INFORMATION
-CDX-P1270/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

4
CDX-P1270
2. EXPLODED VIEWS AND PARTS LIST
2.1 PACKING
12
11
11
12
8
9
15
17
10
7
13
5
4
3
1
6
2
19
18
16
14

5
CDX-P1270
Part No.
Mark No. Description CDX-P1270/X1N/UC CDX-P1270/X1N/EW CDX-P1270/X1N/ES
1 Screw Assy CEA1962 CEA1962 CEA1962
2 Screw CBA1295 CBA1295 CBA1295
* 3 Polyethylene Sheet CNM5158 CNM5158 CNM5158
4 Screw HMB60P500FMC HMB60P500FMC HMB60P500FMC
5 Screw HMF40P080FZK HMF40P080FZK HMF40P080FZK
6 Nut NF60FMC NF60FMC NF60FMC
* 7 Polyethylene Bag CEG1099 CEG1099 CEG1099
8 Polyethylene Bag CEG1174 CEG1026 CEG1026
9 Carton CHG4286 CHG4285 CHG4284
10 Contain Box CHL4286 CHL4285 CHL4284
11 Protector CHP2136 CHP2136 CHP2136
12 Protector CHP2137 CHP2137 CHP2137
13 Seal CNM5741 CNM5741 CNM5741
14-1 Owner’s Manual CRD3351 CRD3349 CRD3348
14-2 Owner’s Manual Not used CRD3350 CRB1629
* 14-3 Warranty Card Not used CRY1157 Not used
* 14-4 Card ARY1048 Not used Not used
15 Magazine Assy CXB4028 CXB6519 CXB4028
16 Angle Assy CXB6817 CXB6817 CXB6817
17 Cord CDE5831 CDE5830 CDE5831
* 18 Caution Card CRP1090 CRP1090 CRP1090
* 19 Caution Card CRP1233 CRP1233 CRP1233
- Owner’s Manual
Model Part No. Language
CDX-P1270/X1N/UC CRD3351 English, French
CDX-P1270/X1N/EW CRD3349 English, Italian, French
CRD3350 German, Dutch, Spanish
CDX-P1270/X1N/ES CRD3348 English, Spanish, Portuguese(B), Arabic
CRB1629 Chinese
-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.

6
CDX-P1270
2.2 EXTERIOR

7
CDX-P1270
1 Screw BMZ26P040FMC
2 Screw BMZ30P040FZK
3 Button CAC6363
4 Screw CBA1353
5 Spring CBH1862
6 Connector CDE5525
7 Connector CDE6478
8 Upper Case CNB2614
9 Arm CNC8058
10 Insulator CNM6074
11 Panel CNS5218
12 Damper CNV6778
13 Power Unit CWX2513
14 Screw BMZ26P060FMC
15 Terminal(CN902) CKF1059
16 Plug(CN901) CKS-460
17 Connector(CN921) CKS3407
18 Connector(CN911) CKS3831
19 Holder CNC8059
20 Holder CNC8060
21 Grille Assy CXB6831
22 Door See Contrast table(2)
23 Door See Contrast table(2)
24 Lower Case Unit CXB7007
25 CD Mechanism Module(C8R2) CXK4950
26 Screw IMS20P030FZK
27 Screw IMS26P040FMC
28 Transistor(Q910) 2SD2396
* 29 Caution Card CRP1233
(1) EXTERIOR SECTION PARTS LIST
Mark No. Description Part No.
Part No.
Mark No. Symbol and Description CDX-P1270/X1N/UC CDX-P1270/X1N/EW CDX-P1270/X1N/ES
22 Door CAT2203 CAT2203 CAT2205
23 Door CAT2204 CAT2204 CAT2206
(2) CONTRAST TABLE
CDX-P1270/X1N/UC, CDX-P1270/X1N/EW and CDX-P1270/X1N/ES are constructed the same except for
the following:

8
CDX-P1270
2.3 CD MECHANISM MODULE

9
CDX-P1270
1 Connector CDE6069
2 CD Core Unit CWX2489
3 Connector(CN701) CKS1963
4 Connector(CN101) CKS2272
5 Screw BMZ20P025FMC
6 Screw(M2x2.5) CBA1037
7 Screw(M2x2.5) CBA1041
8 Screw(M2x2) CBA1176
9 Screw(M2x4) CBA1362
10 Screw(M2x1.4) CBA1387
11 Screw(M2x2.5) CBA1493
12 Screw(M2x1.6) CBA1476
13 Screw(M2x3) CBA1486
14 Washer CBF1038
15 Spring CBH2374
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 CBL1393
25 Spring CBL1404
26 Short Pin CBL1239
27 Volume(VR801) CCW1024
28 Screw(M2x1.5) CBA1491
29 Shaft CLA3894
30 Arm CNC8482
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 CNM6428
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 CNV6091
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 CXB4463
78 •••••
79 Chassis Unit CXB4461
80 Arm Unit CXB2855
81 Screw Unit CXB4464
82 •••••
83 Frame Unit CXB4427
84 Magazine Holder Unit CXB4460
85 Motor Unit(M851)(SPINDLE) CXB3003
86 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

10
CDX-P1270
91 Screw JFZ20P025FMC
92 Lever Unit CXB3938
93 •••••
94 Gear Unit CXB5061
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.

11
CDX-P1270
2.4 MAGAZINE ASSY
1 Magazine Assy(UC,ES) CXB4028
Magazine Assy(EW) CXB6519
2 Tray CNV5341
3 Label(UC,ES) CRW1419
Label(EW) CRW1416
-MAGAZINE ASSY SECTION PARTS LIST
Mark No. Description Part No.

PICKUP UNIT (SERVICE) (P8)
MECHANISM
PCB
HOLOGRAM
UNIT
FOCUS ACT.
TRACKING ACT.
FO+
14
9
98
39
AC/F/E/BD
FD/TD/SD/MD
I13/I04/I02
97
11
16
15
17
18
3
5
10
12
DISC
TRP
DSP
DISC
TRP
DSP
92
95
91
LD(–)
LASER
DIODE
CARRIAGE
MOTOR
MONITOR
DIODE MD
TO+
+5V
M
SPINDLE
MOTOR M
TRY
MOTOR
HOME SW
TRPSW
DSPSW
VR802
EJECT SW
MAG SW
M
ELV
MOTOR M
17
12
27
16
15
11
8
9
2
1
4
3
7
5
10
Q101
Q701
VD
PD
LIMIT xtal
XTAL
L_OUT
LD
VREF
adena
cs
23
16
24 IPIN
IPOUT
IPPW
POWER
XIN
XOUT
13
15
98
asens
bsens
reset
CDMUTE
ELVREF
CONT
ELVPVO
ejsw
mag
disk
TRP
DSP
11
94 93
74
75
3
X202
16.93MHz
X701
10.00MHz
IC 301
BA5986FM
IC 302
LB1836M
VDD
IC 701
PD5638A
ACD CORE UNIT
Q851
D851
DSWITCH PCB
EMOTOR PCB
C
S853
S801
S803
V
EVREF
GND
EPVO
L
4
3
7
5
11
8
9
2
1
10
17
12
27
16
15
5
15
4
3
4CH SERVO DRIVER
MOTOR DRIVER
SYSTEM
CONTROLLER
CN101
CN801
CN802
S852
S851
RF AMP, SERVO, DSP, DAC
IC 201
UPD63711GC
12
CDX-P1270
1234
1234
D
C
B
A
3. BLOCK DIAGRAM AND SCHEMATIC DIAGRAM
3.1 BLOCK DIAGRAM

8
12
13
VD
5V
cs
IPIN
IPOUT
IPPW
POWER
48 4
2
1
2
1
30
22
10
BUSP
15
CDMUTE
LOUT
BUSM
asens
bsens
reset
9
BATT
+B
BSENIN
ASENB 5
18 10
11
14
19 9
SVC2
5
6
12 7
4
31
RESET SW
5V REGULATOR
29
CDMUTE 76
8
5
6
20
ELVPVO
IC 202
BA05FP
Q771
Q770
VDD IC 705
TC7SH32F
IC 702
LC35256FT-70U
SRAM
IC 703
HA12187FP
IP-BUS DRIVER
IC 704
PAJ002A
CN701
16
BPOWER UNIT
10 7
1
Q942
Q911
BUP
Q941
BUP
BUP
BUP
Q910
LOUT
3CDMUTE
6BP BUSP
LCH
5
BUSM
8
ASENB
5BM
7ASNB
4SVC
1
VD
POWER
VD
VD
VD
POWER
9+B
13 BSENIN
CN911
IP-BUS OUT
CN921
L901 BUP
GND
BATT.
GND
3
2
1
CN901 FUSE
2A
10 8
217 16
Q912
S802
VR801
EPVO
LINEAR POSITION SENSOR
ER
1
2
3
CN902
13
CDX-P1270
5678
5678
D
C
B
A

14
CDX-P1270
1234
1234
D
C
B
A
3.2 CD MECHANISM MODULE
Note: When ordering service parts, be sure to refer to “EXPLODED VIEWS AND PARTS LIST” or “ELECTRICAL
PARTS LIST”.
680Ω(B)
10kΩ(B)
112
6
13
10
4
8
VR801 CCW1024
LINEAR POSITION SENSOR
M852
CXB3006
RF AMP, SE
MOTO
4CH SER
CN801
CN802
M853
CXB4421
M851
CXB3003
M854
CXB3004
CSN1052
CSN1051
CSN1051
CN504-2 PT4800
PICKUP UNIT(SERVICE)
CXX1285
C
MECHANISM
PCB
SWITCH PCB
D
MOTOR PCB
E
CCP1337
A1/2
CD E

15
CDX-P1270
5678
5678
D
C
B
A
18
7
2
5
19 20
15
17
16
21
3
9
11
10
MP, SERVO, DSP, DAC
MOTOR DRIVER
H SERVO DRIVER
CD CORE UNIT
A
A2/2
Decimal points for resistor
and capacitor fixed values
are expressed as :
2.2 2R2
0.022 R022
←
←
The >mark found on some component parts indicates
the importance of the safety factor of the part.
Therefore, when replacing, be sure to use parts of
identical designation.
Symbol indicates a resistor.
No differentiation is made between chip resistors and
discrete resistors.
NOTE :
Symbol indicates a capacitor.
No differentiation is made between chip capacitors and
discrete capacitors.
A1/2

16
CDX-P1270
1234
1234
D
C
B
A
SYSTEM CONTROLLER
A1/2
A2/2

17
CDX-P1270
5678
5678
D
C
B
A
SRAM
IP-BUS DRIVER
BCN911
A2/2

18
CDX-P1270
1RFI 0.5V/div. 0.5µs/div.
Normal mode: play
1CH1: RFI 1V/div.
2CH2: MIRR 5V/div.
Test mode: Tracking open
0.5ms/div. 1CH1: RFI 1V/div.
2CH2: MIRR 5V/div.
Normal mode: The defect part
passes 800µm
0.5ms/div.
3CH1: FD 0.5V/div.
4CH2: FOR 2V/div.
Test mode: No disc, Focus close
0.2s/div. 3CH1: FD 0.5V/div.
5CH2: FOK 2V/div.
Normal mode: Focus close
0.2s/div. 6CH1: FE 0.5V/div.
7CH2: XSI 2V/div.
Normal mode: Focus close
1ms/div.
REFO →
8CH1: TE 0.5V/div.
9CH2: TD 0.5V/div.
Test mode: 32 tracks jump (REV)
0.5ms/div. 8CH1: TE 0.5V/div.
9CH2: TD 0.5V/div.
Test mode: Single jump (REV)
0.5ms/div. 8CH1: TE 0.5V/div.
9CH2: TD 0.5V/div.
Test mode: 100 tracks jump (REV)
5ms/div.
6CH1: FE 0.1V/div.
3CH2: FD 0.2V/div.
Normal mode: Play
20ms/div. 3CH1: FD 0.5V/div.
0CH2: MD 1V/div.
Normal mode: Focus close (12cm)
0.5s/div. 3CH1: FD 0.5V/div.
0CH2: 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 →

19
CDX-P1270
8CH1: TE 0.2V/div.
9CH2: TD 0.2V/div.
Normal mode: play
8CH1: TE 0.5V/div.
!CH2: SD 0.5V/div.
TEST mode:100Tracks jump(FWD)
5ms/div. 0MD 0.5V/div. 0.1s/div.
Normal mode: Play (12cm)
0MD 1V/div. 10ms/div.
Long Search (12cm)
@EFM 1V/div. 5µs/div.
Normal mode: Play
8CH1: TE 1V/div.
#CH2: TEC 1V/div.
Test mode: Focus close
Tracking open
2ms/div.
8CH1: TE 0.5V/div.
6CH2: 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 →

20
CDX-P1270
(CH1: R OUT 2V/div.
)CH2: L OUT 2V/div.
Normal mode: Play (1kHz 0dB)
6CH1: FE 0.2V/div.
3CH2: FD 0.5V/div.
Normal mode: During AGC
1ms/div. 8CH1: TE 0.2V/div.
9CH2: TD 0.5V/div.
Normal mode: During AGC
1CH1: RFI 1V/div.
⁄CH2: HOLD 5V/div.
Normal mode: The defect part passes
800µm(B.D)
500µs/div. 1ms/div.
0.5ms/div. 3CH1: FD 1V/div.
⁄CH2: HOLD 5V/div.
Normal mode: The defect part passes
800µm(B.D)
0.5ms/div. 9CH1: 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 →