Samsung VP-A12 Service Manual page 65

Alignment and adjustment
3
Test point and adjustment points :
NO Adjustment name
1
2
3 Y/C SEPARATION
4
5 Y-FM CARRIER FREQUENCY
6 Y-FM DEVIATION
7
8
9 PB OUTPUT LEVEL
Test point
ADJ. point
3. Y/C SEPARATION
5-26
AGC
Y-EMPHASIS
CHROMA EMP
REC Y LEVEL
REC C LEVEL
2. Y-EMPHASIS
1. AGC
TP202
IC201
TP201
IC302
VR301
Test point
TP201
TP202
Pin 2 of IC201
-
TP203
TP202
-
-
Pin 24 of CTP01
9. PB Output Level
TP203
Main PCB ( Comporent side )
Adjustment point
EVR
EVR
VR301, EVR
EVR data fixed
EVR
EVR
EVR data fixed
EVR data fixed
EVR
5. Y-FM CARRIER
6. Y-FM DEVIATION
Samsung Electronics
Spec.
0.5 ± 0.02Vp-p
0.5 ± 0.02Vp-p
-
A4
4.38 ± 0.02MHz
1.0 ± 0.05Vp-p
B3
A4
1.0 ± 0.05Vp-p