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SERVICE MANUAL
CD-P1250
COMPACT DISC PLAYER
CONTENTS
1 SPECIFICATIONS 2
2 EXPLODED VIEWS AND PARTS LIST 3
3 PC BOARDS AND PARTS LIST 7
4 INCLUDED ACCESSORIES 11
NOTES
PC boards shown are viewed from parts side.
The parts with no reference number or no parts number in the
exploded views are not supplied.
As regards the resistors and capacitors, refer to the circuit diagrams
contained in this manual.
£ Parts marked with this sign are safety critical components. They
must be replaced with identical components - refer to the appropriate
parts list and ensure exact replacement.
Parts of [ ] mark can be used only with the version designated.
Effective : May, 2002 S-0062A
1 SPECIFICATIONS
CD PLAYER GENERAL
Pickup: Power Requirements:
3-beam, semiconductor laser 120 V AC, 60Hz (U.S.A./Canada Model)
D/A Converter: 230 V AC, 50Hz (Europe/U.K. Model)
1 bit DAC Power Consumption:
Digital filter: 12 Watts (AC)
8-times oversampling Dimensions (W x H x D):
Frequency Response: 435 x 104 x 295mm
20 Hz ~ 20 kHz ±1.5dB Net Weight:
Total Harmonic Distortion: 3.6 kg
< 0.09 % (1 kHz) Standard Accessories:
Signal-to-Noise Ratio (S/N): Wireless Remote Control Unit (RC-853)
>85 dB (1 kHz) RCA pin-plug cord
Channel Separation: Battery (SUM-3, "AA", "R6" type) x 2 (Europe/U.K. Model)
>80 dB (1 kHz)
Output:
Analog; 2.0 Vrms (RCA) · Design and specifications are subject to change without notice.
Wow and Flutter:
Below measurable limit
SAFETY INFORMATION
This product has been designed and manufactured according to FDA
regulations "title 21, CFR, chapter 1, subchapter J, based on the Radiation 1 For U.S.A.
Control for Health and Safety Act of 1968", and is classified as a class 1
laser product. There is no hazardous invisible laser radiation during
operation because invisible laser radiation emitted inside of this product
is completely confined in the protective housings.
The label required in this regulation is shown 1.
OCAUTION
USE OF CONTROLS OR ADJUSTMENT OR PERFORMANCE OF
PROCEDURES OTHER THAN THOSE SPECIFIED HEREIN MAY RESULT IN
HAZARDOUS RADIATION EXPOSURE.
Optical pickup:
TYPE : SFP101NXR
MANUFACTURER : Sanyo Electric Co., Ltd.
LASER OUTPUT : Continuous Wave max. 5mW
WAVE LENGTH : 765-815nm
2
2 EXPLODED VIEWS AND PARTS LIST
EXPLODED VIEW-1
5120
51SD8
51SI1
5141
51SC2
51SC2
51SC2
4501
51SD4
51SB2
5142 5136
4505
5135
51SB2
5132
5133
5116
5104
3
EXPLODED VIEW-1
£
£
£
£
£
4
EXPLODED VIEW-2
5
EXPLODED VIEW-2 (CD93F8NDT)
6
3 PC BOARDS AND PARTS LIST
MAIN PCB
7
KEY PCB
DISPLAY PCB
HP PCB
8
POWER PCB (U.S.A.)
POWER PCB (Europe)
9
MAIN PCB ASSY DISPLAY PCB ASSY
H.P. PCB ASSY
£
£
£
£
POWER PCB ASSY
£
£
KEY PCB ASSY £
£
£
£
£
£
£
10
4 INCLUDED ACCESSORIES
INCLUDED ACCESSORIES
11
COMPACT DISC PLAYER
1 st Issue; April 2002
CD-P1250
8
CN1
Close SW 1 Up
GND 2
Open SW 3 Open
Tray Motor+ 4 R1
Tray Motor- 5
27k
PH5
R4
6.8k
Pu-In
7
TM+
100k
100k
100k
TM-
R9 10k
R10 10k
14
13
12
11
10
9
8
7
6
5
4
3
2
1
E1
R5
R6
R7
220u/10
LO F IN
LO R IN
LO F OUT
MUTE2 LOW POWVcc 5V
PREVcc 8V
MD IN
MD OUT-
SD IN
MUTE1 LOW
SD OUT+
SD OUT-
MD OUT+
POWVcc 5V LO R OUT
LO V CON
3.9k
18k
CN2
Spindle Motor + 1
Spindle Motor - 2 IC1
R13
R14
Sled Motor+ 3 BA5813FM
VBG OUT
FD OUT+
TD OUT+
Sled Motor- 4
FD OUT-
TD OUT-
PU SW 5
VBG+
TD IN
FD IN
RVcc
BIAS
GND
GND
PU SW 6
PH6
15
16
17
18
19
20
21
22
23
24
25
26
27
28
6
R16 5.6k
Q1
R15 18k
E7 B1375
10u/16 +8V
C1
47n
R17 C3 C4 C6
39k
10n 10n 4.7n
C2
10n
R11 R23 R24 ATest C7
C10 10k 1k 1k
5
0.1u 4.7n
CN5
AGCO C24
E10 1 TP 1n
C5
CN6
100u/10 10n
CN4 1 EFM
TP
TP
1
HFO
75
74
73
72
71
70
69
68
67
66
65
64
63
62
61
60
59
58
57
56
55
54
53
52
51
E2 220u/10 C9
TSI
TSO
MD
A.Vdd
TEST1
TEST0
A.GND
ASY
DAC3
DAC2
DAC1
DAC0
EFM
D.Vdd
TSCK
AGCO
ATEST
TD
FD
D.GND
RFI
SD
PACK
C3T
TSTB
0.1u
76 AGCI C2D3 50
CN3 C21 R21 77 49
R18
RFO C2D2
1
12p 2.2k 78 EQ2 C2D1 48
C29 R22 79 47
Vcc 2 C8 EQ1 C1D2
E 3 47R 4p 22p 2.2k 80 RF- C1D1 46
D 4 81 A.GND D.GND 45
A 5 82 A PLCK 44
B 6 83 C MIRR/WFCK 43 Mirr/WFCK
C 7 84 B RFCK 42
F 8 85 D LOCK 41
4
Lock
GND 9 86 F D.Vdd 40
LD 10 87 E LIMIT 39
VR 11 88 A.Vdd IC3 C16M 38
MD 12 89 REFOUT D.GND 37
F+ 13 CN7 90 FE-
uPD63711
Tx 36
FE C27 91 35
T+ 14 1 FEO HOLD/WDCK Hold/WDCK
T- 15 56p 92 TE- LRCK 34
TP 33
F- 16 93 TEO LRCKIN
CN8 94 TE2 SCKO 32
TE C28 95 31
FFC16 1 C26
TEC SCKIN
27p 96 A.GND DOUT 30
TP 29
1n 97 PD DIN
98 LD