KV-AR252N90 - Sony TV Service Manual (repair manual). Page 4

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Diagnosis Item

Flash Count*

+B overcurrent

2 times

I-Prot

4 times

IK (AKB)

5 times

HV Protect

8 times

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

FLASH RED 

n Please refer diagnosis item.

FLASH GREEN 

n OK

2. DISPLAY OF STANDBY/(1) indicator FLASH

3. STOPPING THE STANDBY/(1) indicator FLASH

Turn off the power switch on the TV main unit or unplug the power cord from the outlet to stop the STANDBY/(1) lamp
from flashing.

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 occurrence of failure on the screen for confirmation.

[To Bring Up Screen Test]
In standby mode, press buttons on the remote commander sequentially in rapid succession as shown below:

[display] / channel [5] / volume [-] / Power 

 / TV 

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

Lamp OFF 3 sec 

Lamp ON 300ms

Lamp OFF 300ms

2 : 

0

3 :

N/A

4 : 

0

5 : 

1

8 : 

0

101 :

N/A

SELF DIAGNOSTIC

Numeral "0" means that no fault was detected.

Numeral "1" means the number of a fault occurrence (1~255).

STANDBY indicator