Sony DCR-TRV320 Service Manual page 276

DCR-TRV320/TRV320E/TRV320P/TRV420E/TRV520/TRV520E/TRV520P/TRV525
1-6. LCD SYSTEM ADJUSTMENTS
6. COM AMP Adjustment (PD-117/118 board)
(Service manual page 5-36)
Set the common electrode drive signal level of LCD to the specified
value.
Mode Camera
Subject Arbitrary
Measurement Point Pin 4 of CN5502 (PANEL COM)
Measuring Instrument Oscilloscope
Adjustment Page D
Adjustment Address A7
Specified Value NTSC model
A=6.33 ± 0.05 Vp-p
(2.5/3/4 LCD TYPE S model)
A=6.10 ± 0.05 Vp-p
(3.5 LCD TYPE S model)
A=5.40 ± 0.05 Vp-p
(2.5 LCD TYPE C 61 k model)
A=5.50 ± 0.05 Vp-p
(3.5/4 LCD TYPE C model)
PAL model
A=6.00 ± 0.05 Vp-p
(2.5 LCD TYPE S 61 k model)
A=6.33 ± 0.05 Vp-p
(2.5 LCD TYPE S 123 k model,
3/4 LCD TYPE S model)
A=6.10 ± 0.05 Vp-p
(3.5 LCD TYPE S model)
A=5.05 ± 0.05 Vp-p
(2.5 LCD TYPE C 61 k model)
A=5.50 ± 0.05 Vp-p
(3.5/4 LCD TYPE C model)
Note 1: NTSC model: DCR- TRV320/TRV320P/TRV520/
PAL model: DCR-TRV320E/TRV420E/TRV520E/
TRV620E/TRV720E
Adjusting method:
1) Select page: 0, address: 01, and set data: 01.
2) Select page: D, address: A7, change the data and set the PANEL
COM signal level (A) to the specified value.
3) Press the PAUSE button.
4) Select page: 0, address: 01, and set data: 00.
2H
Fig. 5-1-27
SECTION 5
ADJUSTMENTS
TRV520P/TRV525/TRV720
A
– 11 –
TRV620E/TRV720/TRV720E