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2-6. PICTURE QUALITY ADJUSTMENTS
Preparation:
• Set PRO MODE (Picture: MAX, GAMMA: 0).
• Dynamic-color: Off (=Trinitron: MID).
• Set the Service Mode to the following:
C2150P-4
NO. Name
Control Function
06 UDCL
Dynamic Color: OFF
08 UGRAM GRAMMA
15 DCTR
DC-TRAN
16 DPIC
DYNAMIC PIC: OFF
1. 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.
2-6.1. VIDEO INPUT - TWO PICTURE SUB
CONTRAST ADJUSTMENT
Preparation:
• Input a Color Bar signal to VIDEO 1 (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
2. Connect oscilloscope to Pin 1 of CN9001 (R.DRV) on the C Board.
3. Adjust MAIN (left) side contrast according to Service Mode for SCON.
2103-1
NO. Name
02 SCON
4. Adjust SUB (right) side contrast according to Service Mode for SCON.
Avg. Data
0
5
2
1
Avg. Data
63
0
Avg. Data
4
Avg. Data
9
Avg. Data
23
Avg. Data
23
Control Function
SUB-CONT
2103-2
NO. Name
02 SCON
VR1
VR1-VR2 = VR = 2.00 ± 0.05 Vp-p
5. Write data from Steps 3 and 4 above, into memory.
2-6.2. VIDEO INPUT - SUB HUE/SUB COLOR
ADJUSTMENT
Preparation:
• Input a Color Bar signal to VIDEO 1 (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-2
NO. Name
01 RGBS
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 —
KV-38DRC2 / 38DRC2C
Control Function
SUB-CONT
white
black
VR2
GND
Control Function
Avg. Data
PICTURE
COLOR
Control Function
Avg. Data
R ON
Control Function
SUB-COL
SUB-HUE
Control Function
SUB-COL
SUB-HUE
63
31
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