2-6.3. Rf Input - Two Picture Sub Contrast Adjustment; 2-6.4. Rf Input - Sub Hue/Sub Color Adjustment - Sony TRINITRON KV-32HS20 Service Manual

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2-6.3. RF INPUT - TWO PICTURE SUB
CONTRAST ADJUSTMENT
Preparation:
• Input a Color Bar signal to RF (75 IRE 75%).
• Set picture mode: P&P (PRO MODE).
1. Set to service mode and adjust as follows:
2150P-4
NO. Name
Control Function
00 UPIC
PICTURE
02 UCOL
COLOR
2150P-2
NO. Name
Control Function
01 RGBS
R ON
INITIAL DATA (IMPORTANT)
2150P-4
NO. Name
Control Function
23 SCON
SUB-CONT
2103-1
NO. Name
Control Function
00 YLEV
Y-OUT
2103-2
NO. Name
Control Function
00 YLEV
Y-OUT
Note: Use the same average data as 2-6.1, items 3 and 4 after the
adjustment
2. Connect an oscilloscope to pin 1 of CN9001 (R. DRV) on the C
Board.
3. Adjust MAIN (left) side contrast according to service mode fro SCON.
2103-1
NO. Name
02 SCON
4. Adjust SUB (right) side contrast according to service mode for SCON.
2103-2
NO. Name
02 SCON
VR1
32": VR1-VR2 = VR = 1.92 ± 0.05 Vp-p
36": VR1-VR2 = VR = 2.00 ± 0.05 Vp-p
5. Write data from steps 3 and 4 above, into memory.
Avg. Data
63
0
Avg. Data
4
Avg. Data
9
Avg. Data
23
Avg. Data
23
Control Function
SUB-CONT
Control Function
SUB-CONT
white
black
VR2
GND
KV-32HS20/36HS20/36HS20H/32XBR450/36XBR450/36XBR450H
2-6.4. RF INPUT - SUB HUE/SUB COLOR
ADJUSTMENT
Preparation:
• Input a Color Bar signal to RF (75 IRE 75%).
• Set picture mode: P&P (PRO MODE).
1. Set to service mode and adjust as follows:
2150P-4
NO. Name
00 UPIC
02 UCOL
2150P-4
NO. Name
01 RGBS
INITIAL DATA (IMPORTANT)
2150P-4
NO. Name
24 CLOF
25 HUOF
2103-1
NO. Name
01 CLEV
20 CBOF
21 CROF
2103-2
NO. Name
01 CLEV
20 CBOF
21 CROF
Note: Use the same average data as 2-6.2, items 3-6 after the
adjustment.
2. Connect an oscilloscope to pin 5 of CN9001 (B. DRV) on the C Board.
3. Adjust MAIN (left) side color according to service mode for SCOL.
4. Adjust MAIN (left) side color according to service mode for SHUE.
2103-1
NO. Name
03 SCOL
04 SHUE
5. Adjust SUB (right) side color according to service mode for SCOL.
6. Adjust SUB (right) side color according to service mode for SHUE.
2103-2
NO. Name
03 SCOL
04 SHUE
— 14 —
Control Function
Avg. Data
PICTURE
COLOR
Control Function
Avg. Data
R ON
Control Function
Avg. Data
OFFSET for UCOL
OFFSET for UHUE
Control Function
Avg. Data
CB & CR-OUT
CB-OFFSET
CR-OFFSET
Control Function
Avg. Data
CB & CR-OUT
CB-OFFSET
CR-OFFSET
Control Function
SUB COLOR
SUB HUE
Control Function
SUB COLOR
SUB HUE
VB4
VB1
VB2
VB3
63
31
7
8
4
17
31
31
17
31
31

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