Picture Quality Adjustment; Preparation; Ntsc Video Input - Sony KP-ES43HK1 Service Manual

KP-ES43HK1/ME1/MN1/SN1, ES48HK1/ME1/MN1/SN1,
ES53HK1/ME1/MN1/SN1,

6-3. Picture Quality Adjustment

6-3-1. Preparation

1. Set in the service mode.
2. Set respective items as follows.
Adjustment Condition
DRC-MF
PICTURE MODE : HI-FINE
TWIN MODE
ECO MODE
WIDE MODE
Category
SAJ
JGL
3. Connect the oscilloscope probe to the following point on the
E board.
Measurement Point
E Board CN4500 :
1 pin R100 t VR
5 pin B100 t VB
Note : After the adjustment 6-3. Picture Quality Adjustment,
these adjustment parameters must be recovered to the
original condition.
Original Condition
DRC-MF
PICTURE MODE : HI-FINE
TWIN MODE
ECO MODE
WIDE MODE
Category Item
SAJ 00 PIC
06 DYC
0E CLO
10 HUO
13 PIO
JGL 04 BBT
05 LML
ES61HK1/ME1/MN1/SN1K
: DRC1250
: ON
: OFF
: OFF
Item Data
00 PIC 3F
06 DYC 00
0E CLO 06
10 HUO 07
13 PIO 00
04 BBT 00
05 LML 03
: DRC1250
: ON
: OFF
: OFF
Data
50 TV 50 VIDEO 60 TV 60 VIDEO
1F
00
0C 0C 0C
08 08 09
07
03
00
RM-961

6-3-2. NTSC Video Input

1. Enter the NTSC video color bar (White & color 75%) signal.
2. Enter the service mode, and set respective items as follows.
3. Measure waveform, and each item is adjusted to become the
following figure.
4. Press " (SWAP)" button on the commander, when the left
screen and the right screen are changed.
5. After adjustment finished, press "
ton to write the data to the NVM.
(i) SUB CONTRAST
Condition :
Category
SAJ
JGL
Adjusting Parameter :
LEFT screen
RIGHT screen :
VR1
(ii) SUB HUE/SUB COL
Condition :
Category
SAJ
JGL
Adjusting Parameter :
LEFT screen
RIGHT screen :
0C
09
– 60 –
(MUTE)" + "-" but-
Item Data
00 PIC 3F
02 COL 00
13 PIO 00
01 RGB 04
: YCT 08 YOL
SYC 08 YOL
VR2
GND
VR1 – VR2 = 1.85 ± 0.07 Vp-p
Item Data
02 COL 1F
10 HUO 07
01 RGB 07
: YCT 0A COL
00 TNT
SYC 0A COL
00 TNT
VB4
VB1 VB3
VB2
VB1 = VB4 ± 70 mV
VB2 = VB3 ± 70 mV