KLV-26S550A, KLV-32S550A, KLV-37S550A - Sony TV Service Manual (repair manual). Page 6

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KLV-26/32/37S550A (CH)     6
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 .
Number of times STANDBY
LED (RED) flashes
Watch Item
2 times
Main power supply voltage Error (12V)
3 times
DC_ALERT1 (VDDQMO=2.5V)
4 times
DC_ALERT2 (D5V)
5 times
DC_ALERT3 (Panel12V)
6 times
Backlight Error.
7 times
Internal temperature watch.
(principally, temparature of panel’s circumference)
8 times
Speaker applied voltage Error.
11 times
LOCTOP IC Error.
DISPLAY OF STANDBY LIGHT FLASH COUNT
STOPPING THE STANDBY FLASH
Turn off the power switch on the TV main unit or unplug the power cord from the outlet to stop the STANDBY LED for flashing.
2 times
4 times
5 times
LED ON  0.3 sec.
LED OFF 0.3 sec.
LED OFF
2 sec. 
[ FLASH COUNT ]
Note: One flash counts is not self-diagnostic.
(STANDBY LED)
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