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Color Television
Model
:
20S62(TDVCF2016)
4654
D. VCR adjustment
Tools for adjustment: special tape SN-2;
1 cross screwdriver with out magnetism and 1 normal
screwdriver with out magnetism;
1
oscillograph and 2 probes;
1 special PCB board(named JIG) only for VCR adjustment.
1 AV line(RCA terminal)
Connect the JIG to P208 on the main board.
Connect CH1 of oscillograph to the S/W jumper on the JIG, connect CH2 on the
ENVE jumper.
Put SN-2 tape into the VCR and the VCR will play automaticly.
Let VR1(500K) on the JIG in the middle.
(1) adjust entrance (P2) and exit (P3).
P2 is signed 4(GUIDE ROLLER) in the upper chart.
P2 is signed 8(GUIDE ROLLER) in the upper chart.
Adjust the P2 and P3 until the signal on CH2 of the oscillograph becomes horizontal.
Turn the VR1(500K) clockwise. If the signal on CH2 is not horizontal, adjust P2 and P3 again.
Turn the VR1(500K) anticlockwise. If the signal on CH2 is not horizontal, adjust P2 and P3 again.
When adjustment is OK, put the VR1(500K) in the middle.
(2) adjust X-position to let the signal on CH2 biggest.
X-position
Summary of Contents for TDVCF2016
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