
3-3-9. Chroma (YC) Level Adjustment
Equipment: | Oscilloscope |
To be extended: | |
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Preparation: | OUTPUT/DL/DCC +switch: BARS |
Test point: | TP64 (GND: |
Trigger: | HD |
Adjusting point: 1RV505 (CHROMA (YC)
Specification: A = 286 ± 5 mV (for NTSC) A = 300 ± 10 mV (for PAL)
[for NTSC]
[for PAL]
3-3-10. VF SYNC/BLKG Level Adjustment
Equipment: | Oscilloscope |
To be extended: | |
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Preparation: | OUTPUT/DL/DCC +switch: BARS |
Test point: | TP82 (GND: |
Trigger: | HD |
Adjustment Procedure
1.SERVICE menu “PAGE 7”
VF SYNC
→VF BLKG
n
For the adjustment procedure, at the first “VF BLKG” adjustment is done, and next, “VF SYNC” adjustment is done.
2.Adjust the following items by UP switch or DOWN
switch to meet the specification.
Item | Test Point | Specification |
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VF BLKG | TP82 | NTSC: A = 50 | ±10 mV | |
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| PAL: | A = 50 | ±10 mV |
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VF SYNC | TP82 | NTSC: | B = 290 ±10 mV | |
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| PAL: | B = 300 ±10 mV | |
[for NTSC] |
| [for PAL] |
1
2
3
4
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6
AB
FL502
CN501
CD
RV501 RV502
RV505
RV504
RV503
TP501
E501
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