Read Sony KV-38DRC2 Service Manual online
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KV-38DRC2 / 38DRC2C
2-6. PICTURE QUALITY ADJUSTMENTS
Preparation:
• Set PRO MODE (Picture: MAX, GAMMA: 0).
• Set PRO MODE (Picture: MAX, GAMMA: 0).
• Dynamic-color: Off (=Trinitron: MID).
• Set the Service Mode to the following:
NO. Name
Control Function
Avg. Data
06 UDCL
Dynamic Color: OFF
0
08 UGRAM
GRAMMA
5
15 DCTR
DC-TRAN
2
16 DPIC
DYNAMIC PIC: OFF
1
C2150P-4
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%).
• 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:
NO. Name
Control Function
Avg. Data
00 UPIC
PICTURE
63
02 UCOL
COLOR
0
NO. Name
Control Function
Avg. Data
01 RGBS
R ON
4
2150P-4
2150P-2
INITIAL DATA (IMPORTANT)
NO. Name
Control Function
Avg. Data
23 SCON
SUB-CONT
9
NO. Name
Control Function
Avg. Data
00 YLEV
Y-OUT
23
NO. Name
Control Function
Avg. Data
00 YLEV
Y-OUT
23
2150P-4
2103-1
2103-2
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.
NO. Name
Control Function
02 SCON
SUB-CONT
2103-1
4. Adjust SUB (right) side contrast according to Service Mode for SCON.
NO. Name
Control Function
02 SCON
SUB-CONT
2103-2
white
black
GND
VR2
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%).
• 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:
NO. Name
Control Function
Avg. Data
00 UPIC
PICTURE
63
02 UCOL
COLOR
31
NO. Name
Control Function
Avg. Data
01 RGBS
R ON
7
2150P-4
2150P-2
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.
NO. Name
Control Function
03 SCOL
SUB-COL
04 SHUE
SUB-HUE
2103-1
5. Adjust SUB (right) side color according to Service Mode for SCOL.
6. Adjust SUB (right) side color according to Service Mode for SHUE.
NO. Name
Control Function
03 SCOL
SUB-COL
04 SHUE
SUB-HUE
2103-2
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