Hitachi UltraVision L42S601, Service Manual

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33
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8
)
When LCD turns ON , it will tune CH03 this is the
complete operation
of Memory Initialize process.
2.1 Process of Memory Initialize operation.
The screen is colored blue when MEMORY INIT
start.
The screen is colored green when MEMORY INIT
finish normally.
The screen is 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, the AC cord should be un-
plugged. Unplug and plug the AC cord and then all
①
②
③
settings and data will be updated.
The adjustment item that is affected by the memory
initialize operation is shown below:
Note: Perform pre heat-run for more than 20 min. before
adjusting.
2.2 FACTORY AND SERVICE ADJUSTMENTS
3 Sub-Contrast Adjustment
Preparation for adjustment
(1) Pre-heat at least 2 min. before the a djust ment .
(2) Recall user menu and select ‘Video’
ඎ
‘Picture Mode’
ඎ
(3) Receive following signal into input3 or input4(Comp) input.
Adjustment procedure
3.1 525p Sub-Contrast, Y/Cb/Cr Clamp offset adjustment
(1) Receive following 525(480)p Signal.
‘Day(Dynamic)’ ඎ ‘Reset’.
Format : 525(480)p
V2 V1
Black White
Black
100% White
V1=1Vpp
V2=0.7Vpp
Adjustment signal for 525(480)p format
(2) Go into Service Adj. Menu and select ‘RGB’ .
(3)
Press for over 2 seconds and
the TV will do
automatic adjustment. When it’s completed,
the
OSD will appear, during adjustment, it will disappear.
BACK TO ADJUSTMENTS
DW3G
ITEM
MEMORY
INITIALIZE PROTECTION
DATA FACTORY
RESET
MMC
SOFTWARE
UPGRADE
BECKHAM
SOFTWARE
UPGRADE
WHITE BALANCE
ADJUSTMENT
DATA
NOT
INITIALIZED
INITIALIZED
NOT
INITIALIZED
NOT
INITIALIZED
INITIALIZED
SUB CONTRAST
ADJUSTMENT
DATA NOT
INITIALIZED
NOT
INITIALIZED
INITIALIZED
INITIALIZED
NOT
INITIALIZED
CLAMP OFFSET
ADJUSTMENT
DATA NOT
INITIALIZED
NOT
INITIALIZED
INITIALIZED
INITIALIZED
NOT
INITIALIZED
OTHER
ADJUSTMENT MODE
DATA INITIALIZED NOT
INITIALIZED
INITIALIZED
NOT
INITIALIZED
FACTORY RESET
INITIALIZED NOT
INITIALIZED INITIALIZED
INITIALIZED
NOT
INITIALIZED
NOT
INITIALIZED