KDF-46E2000, KDF-46E2010, KDF-50E2000, KDF-50E2010, KDF-55E2000, KDF-55E2010 - Sony TV Service Manual (repair manual). Page 8

The units in this manual contain a self-diagnostic function. If an error occurs, the POWER/STANDBY will automatically begin to fl ash. The number of 
times the LED fl ashes translates to a probable source of the problem. A defi nition of the POWER/STANDBY fl ash indicators is listed in the instruction 
manual for the user’s knowledge and reference. If an error symptom is diffi cult to reproduced use the Remote Commander to display the record that is 
stored at the internal NVM to specify the cause of the failure.

Diagnostic Test Indicators
When an error occurs, the POWER/STANDBY will fl ash a set number of times to indicate the possible cause of the problem. If there is more than 
one error, the POWER/STANDBY will identify the fi rst of the problem areas. If the errors occur simultaneously, the one that corresponds to the fewest 
fl ashes is identifi ed fi rst.

Results for all of the following diagnostic items are displayed on screen. (No error has occurred if the screen displays a “0”.)

Lamp cover /

Lamp position error

Temp error

3 times

2 times

4 times

5 times

6 times

8 times

- Lamp cover is not
securely attached (T1 Bd) 

- Set temperture is high.
- Temp sensor connector 

  is not attached securely.

  (CN110 on HB board,

  CN160 on S2 board)

-Lamp is not inserted 
properly (T2 Bd)

Lamp driver error

- Lamp driver is faulty.

LowB LVP 

Thermal Fuse Open 

- Check 10.5V   audio IC
  (B Board)

- Lamp is burnt out.

LowB

OVP

-B -10.5V is over voltage.
(B board)

- Fan 1-4 power is not

supplied. (B board)

- F

-Fan caught wires or 

harnesses.

an connector is not

securely attached .

.

Lamp Error

LAMP-LED flashes

- No Picture/No sound

- No Picture/No sound

- No Picture/No sound

- No Picture/No sound

- Relay click on/off

- No Picture/No sound

- No Picture/No sound

Fan error