Self Diagnosis Function - Sony AZ2EK Service Manual

SELF DIAGNOSIS FUNCTION

The units in this manual contain a self-diagnostic function. If an error occurs, the STANDBY LED will automatically begin to flash.
The number of times the LED flashes translates to a probable source of the problem.
A definition of the STANDBY LED flash indicators is listed in the instruction manual for the user's knowledge and reference.
If an error symptom cannot be reproduced, the remote commander can be used to review the failure occurrence data stored in memory to reveal past problems and how often these
problems occur.
DIAGNOSTIC TEST INDICATORS
When an error occurs, the STANDBY LED will flash a set number of times to
indicate the possible cause of the problem.
If there is more than one error, the LED will identify the first of the problem areas.
Result for all of the following diagnostic items are displayed on screen.
If the screen displays a "0", no error has occurred .
DISPLAY OF STANDBY LED FLASH COUNT
0.5
0.5
SELF-DIAGNOSTIC SCREEN DISPLAY
For errors with symptoms such as "power sometimes shuts off" or "screen sometimes goes out" that cannot be confirmed, it is possible to bring up past occurrences of failure for
confirmation on the screen:
[To Bring Up Screen Test]
In standby mode, press buttons on the remote commander sequentially in rapid succession as shown below:
KDL-26/32/37/40BX320,321,420(AEP/UK)
3
5
Info Channel Volume
* : Note that this differs from entering the service mode (volume +)
Service menu Item
STBY LED
name
Flash time
(Screen Display)
2 MAIN_POWE
3
DC_ALERT1
AUDIO_PROT
4 BALANCER_ERR
5
TCON_ERR
PANEL_ID__NVM_ERR Panel ID NVM Error
6 BACKLITE_ERR
7
TEMP_ERR
8 -
9 -
10 -
11 -
12 -
*
TV POWER
Diagnostic Item Description
Main Power Over Voltage Protection
DC_ALERT
Audio Abnorm al Detection
Not us ed
Not us ed
Back Light Error (Panel Inverter)
Therm al Error
Not us ed
Not us ed
Not us ed
Not us ed
Not us ed
9