Sherwood CD 980 Service Manual
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Extracted text from Sherwood CD 980 Service Manual (Ocr-read)
Page 1
VIDE-V23246
SERVICE MANUAL
CD- 980R/C/ G
COMPACT DISC PLAYER
Sana-wood wmwscpumww MI: E
m " 5 a 5
:1 '6 "6 '5
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I CONTENTS I
LASER BEAM SAFETY PRECAUTIONS ................................................ 1
SAFETY PRECAUTIONS ........................................................... 2
LEAKAGE TEST ................................................................. 3
SPECIFICATIONS ................................................................ 4
WIRING DIAGRAM ............................................................. 3
BLOCK DIAGRAM .............................................................. . 3
CIRCUIT DESCRIPTION ........................................................ .10
PICKUP REPLACEMENT ........................................................ .13
TROUBLESHOOTING ............................................... , .......... .15
MECHANICAL PARTS LIST ....................................................... .22
EXPLODED VIEW(I), (m .......................................................... .23
PRINTED CIRCUIT BOARDS ....................................................... .25 '
ELECTRICAL PARTS LIST ........................................................ ~28
ICS FUNCTIONAL BLOCK DIAGRAM ..................................... . ......... .31
PIN CONNECTION DIAGRAM OF TRANSISTORS, DIODES & ICS ------------------------- ~36
SCHEMATIC DIAGRAM ......................................................... .37
@Sherwood
Page 2
LASER BEAM SAFETY PRECAUTIONS
CLASS 1
LASER PRODUCT
CLASS 1 LASER PRODUCT
CAUTION
Invisible laser radiation when the unit is
open. Do not stare into beam.
CAUTION USE OF ANY CONTROLS. ADJUSTMENT. OR
PROCEDURES OTHER THAN THOSE SPECIFIED HEREIN
MAY RESULT IN HAZARDOUS RADIATION EXPOSURE.
This compact disc player uses a pickup that emits a laser beam, The laser beam is emitted from the
location shown in the figure. When checking the laser diode, be sure to keep your eyes at least 1 foot
Do not look directly at the laser beam
coming from the pickup or allow it to
strike against your skin.
away from the pickup lens when the diode is turned on. Do not look directly at the laser beam.
CAUTION:
Using controls and adjustment, or doing procedures other than those specified herein, may result in
hazardous radiation exposure.
Turntable
Pickup Lens