Service manual

– 60 –
KV-ES29K90
RM-959
1. NTSC VIDEO INPUT
Input signal ; NTSC color bar, 75% to Video 1. [TWIN] mode, [Service] mode. (i) SUB CONTRAST
Condition : SAJ 00 PIC 3F
02 COL 0
JGL 01 RGB 4 SAJ 13 PIO 0
Adjusting parameter:
LEFT ; YCT 08 YOL RIGHT ; SYC 08 YOL
VR1
VR2
GND
VR1 - VR2 = 1.85 ± 0.07 (Vp-p)
(ii) SUB HUE/SUB COL
Condition : SAJ 02 COL 1F
JGL 01 RGB 7 SAJ 10 HUO 7
Adjusting parameter:
LEFT ; YCT 0A COL
YCT 00 TNT
RIGHT ; SYC 0A COL
SYC 00 TNT
VB1 VB2 VB3
VB4
VB1 = VB4 ± 70 mV VB2 = VB3 ± 70 mV
5-3. PICTURE QUALITY ADJUSTMENTS
-H-TRAPIZIUM ADJUSTMENT
1. Input a cross hatch/dot signal. 2. Adjust DAC 4 HTR to make H-Trapizoid distortion best.
SUB CONTRAST, SUB HUE, SUB COLOR
Adjustment condition
SAJ 00 PIC 3F
06 DYC 0 0E CLO 6 10 HUO 7 13 PIO 0
JGL 04 BBT 0
05 LML 3
PICTURE QUALITY : HI-FINE ECO MODE : OFF WIDE MODE : OFF DRC-MF : DRC1050
INPUT SIGNAL
Video Color Bar (White and Color 75%) RF Color Bar (White and Color 75%)
MEASUREMENT POINT
VR ; R100 (the pin 6 of CN1100 at A board) VB ; B100 (the pin 7 of CN1100 at A board)
CAUTION After the above Adjustment, these adjustment parameters must be recovered to the original condition. Original condition
SAJ 00 PIC 28 HI-FINE SAJ 06 DYC 0 HI-FINE
50 TV 50 VIDEO 60 TV 60 VIDEO
OE CLO 9 8 9 6 10 HUO 8 8 9 7
13 PIO TWIN = 3 JGL 04 BBT 3
05 LML 0