Head Switching Point Adjustment - Samsung SV-7000W Service Manual

Alignment and Adjustment

6-3 Head Switching Point Adjustment

1) Playback the alignment tape.
2) Press the ÒTESTÓ (SV-7000W ; SW711, SV-5000W ; SW718) button on Timer PCB to set the adjustment
mode. (See Fig. 6-2)
3) Press the ÒREC.SPEEDÓ button of remote control then adjustment is operated automatically. (See Fig. 6-1)
4) Turn the Power off.
6-4 NTSC Skew Adjustment
1) Load the instrument with an alignment tape and playback the color bar signal (NTSC SP color bar tape).
2) Connect CH-1 scope probe (1V/div, 50µs/div.).
3) Connect CH-2 scope probe to video terminal of J4303 (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.
CORRESPOND TO LEVEL
(Before Adjustment) (After Adjustment)
Fig. 6-4 I/O PCB (Top View)
6-4 Samsung Electronics