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·Process of Memory Initialize operation.
①
A screen is be colored cyan when MEMORY INIT
start.
A screen is be colored green when MEMORY INIT
②
finish normally.
③
A screen is be colored red when MEMORY INIT
finish abnormally.
(6) Do not unplug from AC outlet until this operation
is complete and do not perform any key operation
either, after this operation each factory setting and
all adjust mode data should reset to delivery settings
automatically.
(7) After Memory Initialize, it should be unplug AC cord.
Unplug and plug AC cord and then all settings and data
are updated.
(8) When PDP turns ON , it will tune CH03 this is the
complete operation of Memory Initialize process.
2.2 FACTORY AND SERVICE ADJUSTMENTS
The adjustment item that is affected by the memory
initialize operation is shown below:
* JIG. R/C FACTORY PRESET CODE:92
MEMORY INITIALIZE and FACTORY PRESET
ITEM
RGB(480p) ADJUST DATA
WHITE BALANCE SETTING
OTHER ADJUSTMENT MODE DATA
FACTORY RESET ITEM
CHANNEL LIST
Note: Perform pre heat-run for more than 20 min. before
adjusting.
3.1 Sub-Contrast & Clamp Offset Adjustment
Preparation for adjustment
(1) Pre-heat at least 2 min. before the Final Adjust.
(2) Recall user menu and select 'Video' 'Picture Mode'
'Day(Dynamic)' 'Reset'.
(3) Receive following signal into input3 or input4(Comp) input.
Adjustment procedure
3.11 525p Sub-Contrast, Y/Cb/Cr Clamp offset adjustment
(1) Receive following 525(480)p Signal.
Black
Black
White
Adjustment signal for 525(480)p format
(2) Go into Service Adj. Menu and select 'RGB' .
(3)
Press
for over 2 seconds and have it perform
automatic adjustment. When it's completed, 'Auto
Adjusting' on the screen will be disappeared.
BACK TO ADJUSTMENTS
BACK TO ADJUSTMENTS
MEMORY
FACTORY RESET
REMARKS
INITIALIZE
NOT INITIALIZE
NOT INITIALIZE
NOT INITIALIZE
NOT INITIALIZE
INITIALIZE
NOT INITIALIZE
INITIALIZE
INITIALIZE
INITIALIZE
INITIALIZE
100% White
V2
V1
V1=1Vpp
V2=0.7Vpp
Format : 525(480)p
3.12 525i Cb,Cr Clamp offset adjustment
Preparation
(1) Change signal format from 525(480)p to 525(480)i.
(See Fig.2)
Adjustment
(1) Select 'RGB' of Service Adj. Menu.
Press
for over 2 seconds and have it perform
automatic adjustment. When it's completed, 'Auto
Adjusting' on the screen will be disappeared.
Black
Black
White
Fig.2 Adjustment signal for 525(480)i format
3.2 BRIGHTNESS CHECK
Preparation
(1) Start checking 20 minutes or more after the power is
turned ON.
(2) Receive the color bar signal.
(3) The vertical incident illumination on the screen
should be 20 lux or less.
(4) Picture Format is 16:9 standard mode.
(5) Select Day mode and reset.
Checking Procedure
(1) Check the brightness as below.
Can be seen at black
Can be seen slightly from black
Note: If set black level is NG, readjust item Sub
Contrast adj.
Measuring Conditions
(1) At the signal electric field strength 75± dBm, the
specification mentioned above should be satisfied.
(2) At the input electric field 46-106dB , there should be
no abnormality.
* From color bar pattern below.
7 step gray scale
A7
A4 has tolerance.
A4 can be between black and
Slightly from black.
40
DW2U
100% White
V2
V1
V1=1Vpp
V2=0.7Vpp
Format : 525(480)i
DW-2
A1*
A2*
A6
A5
A4
A3
A2
A1
White 100%
Color Bar Signal
10
0
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