Sony EVO-720P - Page 244

8-3-6... ¥. Comb-type. Filter Adjustment (HK-3 Board)
8-3-8. VIDEO OUT Level Adjustment (HK-3 Board}
Mode EE |
Mode
EE
Signal Color bar
Signal
Color bar
Measurement Point Pin @ of IC201
Measurement Point
TP103 (V OUT)
Measuring Instrument | Oscilloscope
Measuring Instrument
Oscilloscope
Adjusting Element RV201 (COMB AGC)
RV107 (VOUT)
The amplitude between
white (100%) and H SYNC
sections is O£15 mVpp ,
Specified Value
Adjusting method:
1) Adjust RV201 so that,no difference between H SYNC
and white 100% in level occurs each 1H,
H. SYNC
4
Not good:
| White: (1009)
Good
Not seed a a
V: 05V/div
H:20 psec/div
Fig. 8-17.
8-3-7, SYNC AGC Adjustment (HK-3 Board)
Specified Value
Adjusting Element
2.00+0.05' Vp-p
Adjusting method :
1) Adjust to 2,00+0,05 Vp-p with RV107.
White (100%)
é
2.0020.05 Vp-p
Fig, 8-19, VIDEO OUT. level adjustment
8-3-9. PB Y Level Adjustment (HK-3 Board)
Signal ,
Playback
Alignment tape : ,
For operation confirmation
(WRS-SCSP)
Color bar section
RV106 (SYNC AGC)
0.50+0,02 Vp-p
Adjusting Element
Specified Value
Adjusting method :
1) Adjust to 0.50+0,02 Vp-p with RV106.
{
ot
0.5020.02 Vp-p
one
eae
Fig. 8-18. SYNC AGC adjustment
Adjusting method :
Measurement Point TPIOL
Mode EE
Signal Color bar | Measuring Instrument } Oscilloscope
Measurement Point TPi01 Adjusting Element RV101 (PB Y)
(REC Y : Pin @ of IC101) Specified Value 0.50+0.02 Vp-p
Measuring Instrument | Oscilloscope
1) Adjust to 0.50 40.02 Vp-p with RV101.
White (10096)
bes asl
4,
0.5040.02 Vp-p
|
Fig. 8-20. PB Y level adjustment
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