KLV-52X200A, KLV-52X250A - Sony TV Service Manual (repair manual). Page 15

KLV-52X200A/

52X250A

 (GA)     2-3

This indicates high temperature inside chassis. IC9201 on AG Board Side is 
monitoring temperature and DE micro on B2 board is controlling IC9201.

When it happens;

- Check chassis environment

- Check around IC9201 and replace AG or B2 if temperature monitoring circuit
   has problem.

- Check panel

3

3

-

-

1. Temp Error (RED 2 times blink)

1. Temp Error (RED 2 times blink)

This indicates OVP (Over Voltage Protection) of G board. TV Micro (IC9704, 
AG board) pin139 detects OVP and shuts down chassis power (STBY). See 
“Power Supply and Inverter” document more detail. 

3

3

-

-

2. OVP (RED 3 times blink)

2. OVP (RED 3 times blink)