Adjustment - Hitachi 42PD9800TA Service Manual

6. Adjustment

● How to get to Adjustment mode
Using the R-side control buttons with the set turned off (standby) can activate it.
Press the SUB-POWER( ) button, and MENU button at the same time, and hold for more than 5 seconds.
The set turns on in adjustment mode with OSD.
● Changing data and Selecting Adjustment code
When the set is in adjustment mode, the cursor
control buttons may be used as the adjustment keys.
, buttons are used for selecting adjustment code.
, buttons are used for changing data values.
OK button is used for to fix data.
After finishing the necessary adjustment press MENU button. Adjustment mode is released and the set
returns to normal condition.
● Memory Initialize operation
NOTE: The execution of this function returns the adjustment codes to the preset values, therefore, adjust-
ment data will be lost.
Procedure
(1) Enter Adjustment Mode.
(2) Select MEMORY INIT adjustment code (No.598) and change the data value from 0 to 1.
(3) Activate MEMORY INIT by pressing OK button.
(4) Select No.407 and change data value from 1 to 0.
(5) Check that the receiving channel goes to P1. Unit is set to preset values.
● How to check method of the use accumulation time for panel.
Select No. 594 of Service Adjustment Menu.
● Do for the following when flicker is anxious.
This phenomenon depends on a contrast inprovement function of a panel.
In the following condition, there is the case that this phenomenon occurs.
But outbreak frequency is very low.
• A still image of a single raster
• A signal of the video specification gradation input
ADJ Items ADJ No.
PC mode
Dynamic mode
Normal mode
Cinema mode
• When changed a main PWB for a service board, refer to P22 (Instructions in software renewal) at work.
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42PD9800TA (FW1)
, ,
Init. Value Max. value
132 0
129 0
130 0
131 0
12
, and OK buttons of the remote control or R-side
1
1
1
1