Sony KLV-52X200A / KLV-52X250A Service Manual ▷ View online
KLV-52X200A/
52X250A
(GA) 2-21
W/B adjustment in service mode
W/B adjustment in service mode
White Balance adjustment
White Balance adjustment
Select upper item
Select upper item
“
“
6 MAIN_WB
6 MAIN_WB
”
”
by push "2" or "5" of channel key
by push "2" or "5" of channel key
and select lower item by push "1" or "4" of channel key.
and select lower item by push "1" or "4" of channel key.
Data change is by push
Data change is by push
"
"
3" or
3" or
"
"
6" of channel key.
6" of channel key.
upper item
lower item
data
W/B adjustment in service mode
W/B adjustment in service mode
Table of lower items
Table of lower items
1 MWBTB : Table of W/B index
1 MWBTB : Table of W/B index
Custom
Custom
-
-
Standard
Standard
Vivid
Vivid
initial
initial
Warm2
Warm2
Warm1
Warm1
Neutral
Neutral
Cool
Cool
Color temperature
Color temperature
0
0
1
1
2
2
3
3
MWBTB
MWBTB
4 GAINR
5 GAING
6 GAINB : These are W/B adjustment of Highlight
Note. GAINR and GAINB have limit. Do not raise it more than the following values.
GAINR : 530 GAINB : 545
If GAING is 512, do not change value of GAING.
8 OFFR
9 OFFG
10 OFFB : These are W/B adjustment of Offset
Note. OFFG is fixation by 512. Do not change.
KLV-52X200A/
52X250A
(GA) 2-22E
W/B adjustment in service mode
W/B adjustment in service mode
Writing of value
Writing of value
When W/B adjustment is finished, those value are written in DE
When W/B adjustment is finished, those value are written in DE
nvm
nvm
.
.
Push
Push
‘
‘
mute
mute
’
’
key, the mark of
key, the mark of
“
“
SERVICE
SERVICE
”
”
changes into
changes into
“
“
WRITE
WRITE
”
”
. (pic.4)
. (pic.4)
When push
When push
‘
‘
0
0
’
’
of channel key while the mark of
of channel key while the mark of
“
“
WRITE
WRITE
”
”
has gone out,
has gone out,
the character of
the character of
“
“
WRITE
WRITE
”
”
changes in
changes in
red
red
. (pic.5)
. (pic.5)
When
When
“
“
WRITE
WRITE
”
”
changes into
changes into
“
“
SERVISE
SERVISE
”
”
, writing of value end.
, writing of value end.
<Pic.4>
<Pic.5>
KLV-52X200A/
52X250A
(GA) 3-1
3-1. BLOCK DIAGRAM
SECTION 3
DIAGRAMS
VIDEO
SW
CXA2239
TVM
MB91305
Video 1
(CV/YC)
EM M A
2Lr
HDMI 1
HDMI 2
CCPXA
Main
HDMI
Rx
Sil9011
Sub
Chroma
SAA7115A
DRC
MFV1
PC
M S P
4411K
L/R Out
Audio
SW
CXA2188Q
Head Phone
LVDS
Tx
To
Panel
Vortex
R
DEM
D-AMP
M61571AFP
To
SP
IFP2S
B2
AG
FXE
TUG
A-tuner(main)
EQ
Buffer
SDRAM
DDR
FLASH
Component
/CV/YC
(Video2 side)
I2S
A-AU
QSS
AM/FM
Delay IC
CXD9826
MUTE
RTC
UART
I2C
I2C
I2C
I2C
MUTE
MUTE
GPX
Buff
DDR
FLASH
DDR
SDRAM
SRAM
Analog Video Signal
Analog Audio Signal
Digital Video Signal
Digital Audio Signal
I2C
I2C
UART
UART
B u f f
Video 3
HD/DVD1
A-tuner(sub)
splitter
RF Video(sub)
RF Video(Main)
Monitor Out
HD/DVD2
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