Parts/Service for 50PD9800TA(FW1)

Parts/Service for 50PD9800TA(FW1)

Brand: HITACHI

Category: TV

Document Type: Parts/Service

Language: EN

Uploaded: Nov. 21, 2025, 7:13 p.m.

6. Adjustment

How to get to Adjustment mode

Using the front 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 ◀, ▶, ▲, and OK buttons of the remote control or front 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

The execution of this function returns the adjustment codes to the preset values, therefore, adjustment 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. | Init. Value | Max. value | |---|---|---|---| | PC mode | 132 | 0 | 1 | | Dynamic mode | 129 | 0 | 1 | | Normal mode | 130 | 0 | 1 | | Cinema mode | 131 | 0 | 1 | • When changed a main PWB for a service board, refer to P22 (Instructions in software renewal) at work.

Troubleshooting and error codes

ADJ ItemsADJ No.Init. ValueMax. value
PC mode13201
Dynamic mode12901
Normal mode13001
Cinema mode13101
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