1995VLX/VL2X/BLX7.0 TROUBLESHOOTING
7.4 VIDEO CIRCUIT TROUBLESHOOTING ROUTINE
START
OK
CHECK OUTPUT VOLT.CHECK CRT SOCKET OR
(R.G.B) OF IC604CRT
NG
CHECK Q634,Q635,Q654,
Q655,Q674,Q675 OR THEIR
PERIPHERAL PARTS
OK
CHECK INPUT VOLT (R.G.B)OK
REPLACE IC604
OF IC604
NG
CHECK PIN19 (CLAMPINGNG
REPLACE IC301
VOLTAGE OF IC601)
OK
CHECK SIGNAL INPUT ATOK
REPLACE IC601 OR OTHER
PIN11(R), PIN6(G), PIN2(B)
PERIPHERAL PARTS
OF IC601
NG
REPLACE D611,D614,D615NG
C602,C604,C605CHECK P601 INPUT SIGNAL
OK
END
CTX17 |
ACEC
