Sanyo CP 888 Service Manual

Page 1

Service Manual

Compact Disc
Player

SA/MYO

CP888 (AUSTRALIA)

Contents
Specifications ................. 1
Laser beam safety precautions ...... 1
Before repairing the compact disc

player ..................... 3
Handling the pick up ............ 3
How to disassemble the unit ....... 4
Details of pick up .............. 6
Parts location ................. 7
Adjustments ................. 7
Cabinet8ichassls explodéd'view. . . . 12 '
Parts list ................... 13

Mechanism Exploded View .......

Mechanism Parts list ............ 16
IC Block diagram .............. 16
Voltages of lCS 8: Tranisitors ..... 20
Wiringdiagram...........:,..22
Schematic diagram ............. 24
Block diagram ................ 26

PRODUCT CODE No.
137 037 13 (Black)

REFERENCE No. WM-580074

Page 2

SPECIFICATIONS

Audio
Channels ........ 2 channels
Frequency

response ........ 5 - 20,000 HZ
Channel

separation ...... 90 dB (1 kHz)
Distortion ....... 0.03% (1 kHz)
Wow and flutter . . . Undetectable
Outputs ......... 1.8 V/Ik ohms
Signal format
Sampling

frequency ....... 44.1 kHz
Quantization ..... 16 bits linear/

channel

Transmission rate . .

Pick up
System .........

Light source ......
Wave length ......
General

Power supply .....

Dimensions
(approx.) .......

Specifications and design subject to change without notice.

LASER BEAM SAFETY PRECAUTIONS

4.32 M bit/sec.

Light pickup
(3-beam)
Semiconductor
laser

790 nm

AC 240V, 50Hz

420(W) x 75(H)
x 270 (D) mm

(1) A Pick-up that emits a laser baam is used in this compact disc player.

t.._._._._._._._._._.
COMPACT
DISC 6

LASER BEAM A

PICK UP

BJECTIVE
LENS 0F
PICK-UP

INVISIBLE LASER RADIATION
EXPOSURE TO BEAM l5 DANGEROUS
CLASS 33 LASER PRODUCT
OUTPUT POWEH' ~T OmW MAX.
WAVELENGTH """ 790nm

CAUTIONlNVlSlBLE LASER
RADIATlON WHEN OPEN AND
INTEFILOCK DEFEATED,

EXPOSURE TO BEAM lS DANGEROUS

LASER BEAM A

PICK- UP

COMPACT DISC