8
Service Adjustments
VCO Adjustment
How to adjust VCO
1. Receive PAL color bar pattern.(ANT input level:58dbuv 75ohms terminated)
2. Connect a digital volt meter to VCO level terminal(TP-VCO) and the ground.
3. Adjust T202, until the volt is 3.6±0.2v DC.
AGC Adjustment
How to adjust AGC
1. Receive PAL color bar pattern.(ANT input level:58dbuv 75ohms terminated)
2. Connect a digital volt meter to tuner-AGC terminal(TP-A) and the ground.
3. Adjust the variable resistance VR202, until the volt is 3.2±0.2v DC.
(
一
)Cabinet Back Removal
1.Remove screws A
，
B.
2.Take the Cabinet Back off.
(A:16pcs,B:4pcs)
A
A
A
A
A
A
A
A
A
A
图1
A
A
A
A
A
A
B
Mechanical Disassembly(LCD-42CA8Z)
