KDF-46E3000, KDF-50E3000 - 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”.)

1 Lamp 

Error 

Lamp not seated properly 
(Note: The lamp LED will flash red when 
this error occurs, not the Power LED)  

2 

OVP 

10.5V is high on B Board 

3 

LowB Error 

10.5V is low on B Board 

4 

Not Used in this model 

 

5 HV 

Detect 

Ballast 

is 

not 

working 

6 

Lamp Cover/ Lamp Position 

The Lamp cover is not closed securely. 

7 

Temp Error 

High Temperature or sensor connection 

8 Audio 

Error 

DC 

error 

on 

U 

Board 

9 Fan 

Error 

Fan 

is 

not 

working 

properly 

Screen

Flashes red for all except Lamp error

Flashes red for Lamp error

- Example

Diagnosis

Number of times LED Flashes

3 times

Lamp Cover

6 times

LED ON : 0.3 sec
LED OFF : 0.3sec

LED OFF

3.0sec

LED OFF

3.0sec

LowB Error

- 4 Flash is not used for self-diagnosis