Hitachi UltraVision L42S601, Service Manual

Page: 33 / 91

3 2
1 ADJUSTMENT PROCEDURE START-UP
The L42S601 and the L42V651 LCD TV sets
pass
thr
o
ugh adjustment procedures during
the
assembly
process. These adjustments must be done to enssure the
best performance of the LCD set for the consumer.
Also, after servicing, these same adjustments must be
done. The adjustments are all made through the I
2
C bus
by changing data in the Adjustment mode menu.
1.1 HOW TO GET TO
THE
ADJUSTMENT MODE
Chassis adjustment mode can be accessed by pressing
the R/C keys MENU + MENU + 8 + SELECT to enter
adjustment mode. For some parameters the only way
to see them is by selecting the parameter number
then
press SELECT in order to see it; then DATA can be
changed if other parameter needs to change then press
key then repeat the same procedure
.
Other way to access this mode is by use JIG R/C code: (9C Hex).
To escape from Adjustment Mode press “INPUT” key on Side
panel or EXIT key of R/C to exit service adjustment mode.
1. 3 CHANGING DATA AND SELECTING ADJUSTMENT
CODE
When the LCD set is in adjustment mode, the cursor , ,
, and MENU keys of the remote control or
side
panel
may be used as the adjustment keys.
A. Use any Hitachi remote control when making an
adjustment.
, keys are used for selecting adjustment
item
.
, keys are used for changing data values.
MENU key is used to advance through the adjustment
mode menus and pages.
ADJUST MODE
FACT RESET
MEMORY INIT
RGB
WHITE BAL HIGH
WHITE BAL MED
WHITE BAL STD
WHITE BAL B/W
B. To make a selection, use the
NUMBER pad
on the
LCD
R
/
C
; example: select DEVICE press 69 then SELECT
the DATA shown is "EB"; if this DATA needs to be chang ed
press the keys to modify, when finish press SELECT
key to store the new DATA value.
normal condition.
C. After finishing the necessary adjustment press the R/C
EXIT key or EXIT key on the side panel.
Adjustment mode is released and LCD set returns to
normal condition.
, ,
2 MEMORY INITIALIZE
2.1 MEMORY INITIALIZE OPERATION
NOTE: The execution of this function returns the
adjustment codes to the preset values, therefore,
adjustment data will be lost
.
Procedure
(1) Enter Adjustment mode by the method described in
sub-items 1.1 and 1.2 from item 1 (“Adjustment
procedure start up”).
(2) Get to the second
row
of Adjust Mode by pressing
R/C or
side
panel cursor key
once.
(3) Select MEMORY INIT adjust code.
(4) Activate MEMORY INIT by pressing
cursor key for
more than 3 seconds.
(5) Check the
following process for initialization opera-
tion.
BACK TO ADJUSTMENTS
DW 3G
Part of S and V models remote control keys.
*Note:PIP key(V Models), ANT key(S models)
Side Panel control