Focus Adjustment; Video Input; Picture Quality Adjustment; Screen (G2) - Sony Trinitron KV-32XBR400 Service Manual

KV-32XBR400/36XBR400/36XBR400H/38DRC1/38DRC1C

3-4. FOCUS ADJUSTMENT

1. Input Monoscope signal.
2. Set VIDEO MODE: Standard (RESET).
3. Adjust focus VR counter-clockwise to confirm the dot's
shape is centered.
4. Confirm center focus with focus VR.

3-5. SCREEN (G2)

1. Input a monoscope pattern. (NTSC)
2. Set to service mode and adjust as follows:
CXA 2150P-2
No. Disp.
00 ALBK
3. Adjust RV9002 on the C Board so that voltage on red, green
and blue cathodes is 170.0 +0.5V DC.
4. Adjust horizontal line at top of screen so it is cutoff.
Note: Never set ALBK to 1 when external power supply is
connected to cathode.

3-6. PICTURE QUALITY ADJUSTMENT

Initial set-up condition
1. Set PRO MODE (Picture : MAX, GAMMA :0)
2. Dynamic-color: Off (=Trinitone: MID).
3. Set the service mode to the following:
C2150P-4
No. Name
06 UDCL
08 UGRAM GRAMMA
15 DCTR
16 DPIC
4. Input Signal (480i):
Color Bar Video 75 IRE (White) 75% modulation
7.5% Set-up
Color Bar RF 75 IRE (White) 75% modulation
7.5% Set-up
Item Avg.
ALL_BLK 0
Control Function Avg. Data
Dynamic Color: OFF 0
0
DC-TRAN 0
DYNAMIC PIC:OFF 0
3-6-1. VIDEO INPUT -Two Picture Sub
Contrast Adjustment
1. Input a Color Bar signal to VIDEO 1 (75 IRE 75%).
2. Set picture mode: P&P (PRO MODE).
3. Set to service mode and adjust as follows:
2150P-4
No. Name
00 UPIC
02 UCOL
2150P-2
No. Name
01 RGBS
INITIAL DATA (IMPORTANT)
2150P-4
No. Name
23 SCON
2103-1
No. Name
00 YLEV
2103-2
No. Name
00 YLEV
4. Connect oscilloscope to Pin 1 of CN9001 (R. DRV) on C
Board.
5. Adjust MAIN (left) side contrast according to service mode
for SCON.
2103-1
No. Name
02 SCON
6. Adjust SUB (right) side contrast according to service mode
for SCON.
2103-2
No. Name
02 SCON
32": VR1-VR2 = VR = 1.92 +0.05 Vp-p
36"/ 38": VR1-VR2 = VR = 2.0 +0.05 Vp-p
7. Write data from 5 and 6 above into memory.
— 18 —
Control Function Avg. Data
PICTURE 63
COLOR 0
Control Function Avg. Data
R ON 4
Control Function Avg. Data
SUB-CONT 9
Control Function Avg. Data
Y-OUT 23
Control Function Avg. Data
Y-OUT 23
Control Function
SUB-CONT
Control Function
SUB-CONT