Picture Quality Adjustments - Sony Trinitron KV-EX29M93 Service Manual

KV-EX29M39/EX29M87/EX34M97
KV-EX29M93/EX29M65

7-3. PICTURE QUALITY ADJUSTMENTS

PICTURE ADJUSTMENT
1. Set to service mode.
2. Set A/V control to HI-FINE.
3. Set the following condition.
Adjustment condition
SAJ 00
06
0E
10
JGL 04
05
ECO MODE
WIDE MODE
DRC-MF
MEASUREMENT POINT
VR : R100 (the pin 6 of CN1100)
VB : B100 (the pin 7 of CN1100)
CAUTION
After Adjustment, these adjustment parameters must be
recovered to the original condition.
Original Condition
SAJ 00
06
50 TV
0E CLO 09
1O HUO 08
JGL 04
05
1. DRIVE ADJUSTMENT (VIDEO MODE)
Input signal : PAL Color bar, to Video 1
[Service] mode.
(i) SUB CONTRAST
Condition : SAJ
JGL
Adjusting parameter:
YCT
2. DRIVE ADJUSTMENT (RF MODE)
Input signal : PAL Color bar HI-FINE Mode.
(i) SUB CONTRAST
Condition : SAJ
JGL
Adjusting parameter:
YCT
http://cxema.ru
RM-963
RM-964
PIC 3F
DYC 00
CLO 06
HUO 07
BBT 00
LML 03
: OFF
: OFF
: DRC1250
PIC 28 HI-FINE
DYC 0 HI-FINE
50 VIDEO 60 TV 60 VIDEO
08 09 09
08 09 09
BBT 03
LML 00
00 PIC 3F
02 COL 00
01 RGB 04
08 YOL
00 PIC 3F
02 COL 00
01 RGB 04
04 SCT
(ii) Copy SCT data to NTSC (RF MODE)
VR
VR1 - VR2 = VR = 2.35 ± 0.07 (Vp-p)
SUB HUE/COL ADJUSTMENT
1. SUB HUE/SUB COL (VIDEO MODE)
Input signal : NTSC Color bar HI-FINE Mode.
Condition : SAJ
JGL
SAJ
Adjusting parameter:
YCT
YCT
After the adjustment SAJ 10 HUO 9
2. SUB HUE/SUB COL (NTSC RF MODE)
Input signal : NTSC Color bar.
Condition : SAJ
JGL
SAJ
Adjusting parameter:
YCT
YCT
NTSC
VB1 VB2 VB3
VB1 = VB4 ± 70 mV
VB2 = VB3 ± 70 mV
3. SUB COLOR ADJUSTMENT (PAL RF MODE)
Input signal : RF PAL Color bar HI-FINE Mode.
Condition : SAJ
JGL
Adjusting parameter:
YCT
PAL
VB1 VB2 VB3
VB1 = VB2 = VB3
– 74 –
VR2
GND
02 COL 1F
01 RGB 07
10 HUO 07
0A COL
00 TNT
02 COL 1F
01 RGB 07
10 HUO 07
03 SCL
00 TNT
VB4
02 COL 1F
01 RGB 07
03 SCL
VB4