KV-DR29M50 - Sony TV Service Manual (repair manual). Page 4

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Turn off the power switch on the TV main unit or unplug the power cord from the outlet to stop the STANDBY/TIMER lamp
from flashing.

For errors with symptoms such as "power sometimes shuts off" or "screen sometimes goes off" that cannot be confirmed, it
is possible to bring up past occurances 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:

[Screen display] / channel 

5

/ Sound volume [-] / Power ON

˘

Note that this differs from entering the service mode (mode volume [+]).

Diagnostic Item

Flash Count*

+B overcurrent

2 times

+B overvoltage

3 times

V deflection stop

4 times

White balance failure

5 times

Horizontal Deflection Failure

6 times

* One flash count is not used for self-diagnostic.

STANDBY/SLEEP lamp

Lamp ON 0.3 sec.

Lamp OFF 3 sec.

Lamp OFF 0.3 sec.

2 times

3 times

4 times

5 times

6 times

002 : 000
003 : 000
004 : 000
005 : 001

Numeral "0" means that no fault has been detected.

Numeral "1" means a fault has been detected.

006 : 002

101 : 000

SELF DIAGNOSTIC

Numeral "2" means two faults have been detected.