Service manual

5-47
3-4. VIDEO SYSTEM ADJUSTMENTS
Video system adjustments must be performed in the following order.
[Adjusting Order]
1. 28MHz origin oscillation adjustment
2. AFC f0 adjustment
3. Filter f0 adjustment
4. Y OUT level adjustment
5. C OUT level adjustment
6. RP filter f0 adjustment
7. Hi8 REC Y current adjustment
8. Standard REC Y current adjustment
9. Hi8 REC L level adjustment
10. Standard8 REC L level adjustment
11. REC C current adjustment
Mode VTR stop
Signal No signal
Measurement Point Pin ^§ of IC202 or pin !™ of IC501
Measuring Instrument Frequency counter
Adjustment Page F
Adjustment Address 2C
Specified Value Pin ^§ of IC202 :
f=3579545±17Hz
Pin !™ of IC501 :
f=14318181±68Hz
Adjusting method:
1) Select page: 0, address: 01, and set data: 01.
2) Select page: 2, address: 61, and set data: 30.
3) Select page: 3, address: 01, set data: 41, and press the PAUSE
button of the adjusting remote commander.
4) Select page: F, address: 2C, change the data and set the clock
frequency(f) to the specified value.
5) Press the PAUSE button of the adjusting remote commander.
6) Select page: 2, address: 61, and set data: 10.
7) Select page: 3, address: 01, set data: 00, and press the PAUSE
button of the adjusting remote commander.
6) Select page: 0, address: 01, and set data: 00.
1. 28 MHz Origin Oscillation Adjustment (VC-215 board)
Set the frequency of the clock for synchronization.
If deviated, the synchronization will be disrupted and the color will
become inconsistent.