Samsung SV-4000W Service Manual page 24

6-3-3 Video Adjustment
1. NTSC Skew
1) Load the instrument with an alignment tape and playback the color bar signal(NTSC SP color bar tape).
2) Connect channel-1 scope probe (1V/div, 50µs/div.).
3) Connect channel-2 scope probe to video terminal of JC4309 (I/O PCB).
4) Set the VCR to RPS (Reverse picture search) or FPS (Forward picture search) mode.
5) Adjust VR4301 (I/O PCB) so that the 100% white and pedestal is as flat as possible.
(Before Adjustment)
Samsung Electronics
VIDEO TERMINAL
Main PCB (Conductor Side)
Alignment and Adjustment
CORRESPOND TO LEVEL
(After Adjustment)
ADJUST
(COMPONENT
SIDE)
6-5