Read Sony KDF-42WE655 / KDF-50WE655 Service Manual online
8
KDF-42WE655/50WE655
KDF-42WE655/50WE655
SELF-DIAGNOSTIC FUNCTION
Self Diagnosis
Supported model
The units in this manual contain a self-diagnostic function. If an error occurs, the POWER/STANDBY or LAMP LED 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 or LAMP LED 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.
The number of times the LED fl ashes translates to a probable source of the problem. A defi nition of the POWER/STANDBY or LAMP LED 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 or LAMP LED will fl ash a set number of times to indicate the possible cause of the problem. If there
is more than one error, the LED 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”.
When an error occurs, the POWER/STANDBY or LAMP LED will fl ash a set number of times to indicate the possible cause of the problem. If there
is more than one error, the LED 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”.
Diagnostic Item
Description
Number of times
STANDBY or LAMP LED
lamp flashes
Probable Cause
Detected Symptoms
Lamp cover error
3 times
- Lamp cover is not fastened securely
- No picture/No sound
Fan error
4 times
- Fan1-4 Power is not supplied.(G2 board)
- Fan connector is not seated securely
- Fan caught wires or harnesses
- Fan connector is not seated securely
- Fan caught wires or harnesses
- No picture/No sound
Temp error
4 times
- Internal temperature is too high
- IIC-E line connector is not seated properly
(WE:H3 board, WF/XS:H4 board)
- IIC-E line connector is not seated properly
(WE:H3 board, WF/XS:H4 board)
- No picture/No sound
Lamp driver error
5 times
- Lamp driver defect
- No picture/No sound
Low B error
6 times
-No "DD 6V " output (G1 board)
- No picture/No sound
Audio error
7 times
- Short-circuit of Audio power supply line
(KD board, G1 board)
- Blowout of a fuse
(F4702,F4703,F4704 on KD board)
- IC failure
(IC4703,IC4708,IC4710 on KD board)
(KD board, G1 board)
- Blowout of a fuse
(F4702,F4703,F4704 on KD board)
- IC failure
(IC4703,IC4708,IC4710 on KD board)
- No picture/No sound
D-OVP error
8 times
- Overvoltage of +3.3V or +2.5V
(A board, B board)
(A board, B board)
- No picture/No sound
ATSC-OVP error
10 times
-No "DTL MODULE 5V " output
(G1 board, G2 board)
(G1 board, G2 board)
- No picture/No sound
Lamp error
LAMP-LED is ON.
- Lamp is dead
- No picture/No sound
Click on the first or last page to see other KDF-42WE655 / KDF-50WE655 service manuals if exist.