37
NO
YES
YES
NO
Go to “RF output is abnormal”
Disc recognition is abnormal
Is there
CDR/RW signal input
normally?(IC201 pin 33)
Is there
RECD1, RECD2 signal
output normally?
(IC301)
YES
Replace IC203 (MICOM)
Go to “Track Servo is unstable”
NO
NO
Go to “Laser is abnormal”
•Check the PICK UP FFC.
•Replace the PICK UP
RF output is abnormal
Is there
PICK UP(A,B,C,D) output
normally? (PN301 pin 8,9,
14,15)
Is RRF signal
output normal?(IC301 pin 82)
•First Recognition try : Over 1.7 Vpp
•Second Recognition try :
Over 0.5 Vpp
YES
NO
•Check the connection between
PN301 and IC301.
•Replace the IC301(CXA3558R).
OK
Summary of Contents for CDR 26
Page 28: ...28 IC403 IC403 2 8 IC402 ...
Page 47: ......
Page 51: ...6 436 079 441 076 441 071 080 2 072 436 072A 072A A08 ...
Page 71: ...71 UIT BOARD DIAGRAMS TOP SIDE LOCATION GUIDE ...
Page 72: ...72 IN P C BOARD BOTTOM SIDE LOCATION GUIDE ...
Page 73: ...TOP SIDE ARD LOCATION GUIDE 4 I O P C BOARD BOTTOM SIDE 73 ...
Page 74: ...74 GRAM UIT DIAGRAM ...
Page 75: ...75 RAM ...
Page 76: ...76 ...
Page 77: ...77 GRAM ...
Page 78: ...78 M ...
Page 79: ...79 ...
Page 80: ...80 ...