Samsung SV7000W Service Manual download pdf (Page 17)

6-4

Samsung Electronics

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)

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Samsung SV7000W Service Manual Page 17