Screen (G2); Picture Quality Adjustments; 2-6.1. Video Input - Sub Contrast Adjustment; 2-6.2. Video Input - Sub Hue/Sub Color Adjustment - Sony KV-32HS500 Service Manual

2-5. SCREEN (G2)

1. Input composite white fi eld into Video 1.
2. Set to service mode and adjust as follows:

2-6. PICTURE QUALITY ADJUSTMENTS

Preparation:
• Set PRO MODE (Reset).
1. Input signal (480i Composite):
• 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 - SUB CONTRAST
ADJUSTMENT
Preparation:
• Input a Color Bar signal to VIDEO 1 (75 IRE 75%).
• Set picture mode: Single (PRO MODE Reset).
• Picture: Max
1. Set to Service Mode and adjust as follows:
2150P-2
NO. Name Control Function
01 RGBS R ON
2. Connect oscilloscope to Pin 1 of CN9001 (R.DRV) on the C Board.
3. Adjust contrast according to the service mode item: SPIO.
2103-2
NO. Name
02 SCON
Avg. Data
4
Control Function
SUB-CONT
VR1
(34XBR) = 1.67 ± 0.05 Vpp
(36XBR) = 1.74 ± 0.05 Vpp
(40XBR) = 1.81 ± 0.05 Vpp
4. Write data from Step 3 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: Single (PRO MODE Reset).
• Picture: Max
1. Set to Service Mode and adjust as follows:
2150P-2
NO. Name
01 RGBS
2. Connect an oscilloscope to Pin 5 of CN9001 (B. DRV) on the C
Board.
— 17 —
KV-32HS500/32HV600/34DRC500/34XBR800/36HS500/
36XBR800/38DRC500/40XBR800/42DRC800
white
black
VR2
GND
VR
(32HS) = 1.92 ± 0.05 Vpp
(36HS) = 2.00 ± 0.05 Vpp
(32HV) = 1.67 ± 0.05 Vpp
Control Function Avg. Data
R ON 7