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INF-12
SECTION 1 SERVICE INFORMATION
4. Troubleshooting Guide
The failure symptom "Power off" or "No picture or No sound" is reported but it can not be confirmed in the service, use this
function to confirm the failure status and narrow down the failure circuit.
4. 1. Self check of signal system
1. Display the CAT mode (Refer to 3.1.).
2. The CAT mode menu appears on the screen. Select the [ID Mode] menu with [pq] buttons, and press and hold the
[MUTE] button until the ID mode menu appears. (It takes a few seconds to display it.)
To exit the ID mode
- Press the [RETURN] button to return to the CAT mode menu
- Turn the Display off with remote control or unit. (In case the Main MCU version is 1.00 or 1.01)
CAT Panel sys.8.2
IIC Mode
CD Mode
NW Mode
SD Mode
MS Mode
ID Mode
■
Treatment action
Items
IIC Device
Symptom
Action
IIC1
H90MEM
Not memorized some settings below.
Items listed below in the SETUP menu.
(Display ID Setting/Timer Setting/Control Terminal Select)
Check or replace A module
H49HDMI-SW
Abnormality on the picture of Digital signal (HDMI, DVI1/DVI2,
DisplayPort, Digital Link)
IIC3
H52EXTIO
Abnormality on the picture
IIC4
H51RTC
Not operate timer function
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