Sony BVP-9500WS, Maintenance Manual

Page: 109 / 390

3-37 (E)
BVP-9500WS/9500WSP MM
A
3-4-2. AD Gain Adjustment
Equipment: Video analyzer
Test point: TEST OUT connector/side panel
Note
Before adjustment, make sure that the “3-4-1. DA Gain Adjustment” is completed.
Preparations
. Extend the VA-200 and MEM-98 boards with the extension boards (EX-762 board assembly and
EX-819) respectively. (Refer to Section 1-13.)
. TEST 1 button/MSU-700A
→
ON
.
WHITE CLIP OFF/MSU-700A (PAINT menu)
→
OFF (lit)
. KNEE OFF button/MSU-700A
→
OFF (lit)
. MASTER GAIN/MSU-700A
→
0 dB
. Preset the compensation data (refer to section 3-1-4)
Adjustment procedures
1. Select R signal by pushing down the TEST OUT switch (side panel) from the RGB position towards
the SEL position. (You can check which signal is selected on the viewfinder screen.)
2. Adj. point: 1 RV1 (R GAIN) /VA-200 board
Specification: A = 100.0
±
0.5 IRE [NTSC]
A = 700
±
3 mV [PAL]
3. Select G signal by pushing down the TEST OUT
switch (side panel) from the RGB position towards the
SEL position.
4. Adj. point: 1 RV101 (G GAIN) /VA-200 board
Specification: A = 100.0
±
0.5 IRE [NTSC]
A = 700
±
3 mV [PAL]
5. Select B signal by pushing down the TEST OUT
switch (side panel) from the RGB position towards
the SEL position.
6. Adj. point: 1 RV201 (B GAIN) /VA-200 board
Specification: A = 100.0
±
0.5 IRE [NTSC]
A = 700
±
3 mV [PAL]
3-4. AD, DA System Adjustment
VA-200 BOARD (A SIDE)
TP1
TP704
TP702
TP703
TP701
TP705
TP101
TP201
RV2
RV1
RV102
RV101
RV201
RV202
E701
CN1
1 2
C
B
A