Samsung DV7720KV Service Manual page 38

Troubleshooting
6-14 Video CD Video problem
TOC read OK
check for video
signal at pin 67 of VIC1
check for video signal
at PIN 7 of VIC10
check for video signal
at pin 15 of VIC 4
Samsung Electronics
No
Yes
No
Yes
No
Yes
check for pin
11,12,14 of AIC106
Check for soldering of VIC1 and VIC3
Check for clock(16.9MHz) at pin 86 of VIC1
Check for clock(27MHz) at pin 106 of VIC1
check for signal
at PIN 2 of VIC10 (Video - CD : H)
No
Check for clock at pin 1 of VIC5
Check for clock at pin 2,6 of VIC6
No
See " No Digital Sound"
clock ; NTSC ; 14.318 MHz
PAL ; 17.734MHz
6-14