Self-Diagnostic Function - Sony KDF-46E2000 Service Manual

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".)
Diagnosis Item
Temp error
Lamp cover /
Lamp position error
Fan error
Lamp driver error
LowB LVP
Thermal Fuse Open
LowB
Lamp Error
KDF-46E2000/46E2010/50E2000/50E2010/55E2000/55E2010

SELF-DIAGNOSTIC FUNCTION

Number of times
POWER/STANDBY
indicator blinks
2 times
3 times
4 times
5 times
6 times
OVP 8 times
LAMP-LED flashes
KDF-46E2000/46E2010/50E2000/50E2010/55E2000/55E2010
Probable Cause/
Location
- Set temperture is high.
- Temp sensor connector
is not attached securely.
(CN110 on HB board,
CN160 on S2 board)
- Lamp cover is not
securely attached (T1 Bd)
-Lamp is not inserted
properly (T2 Bd)
- Fan 1-4 power is not
supplied. (B board)
- F an connector is not
. securely attached .
-Fan caught wires or
harnesses.
- Lamp driver is faulty.
- Check 10.5V audio IC
(B Board)
-B -10.5V is over voltage.
(B board)
- Lamp is burnt out.
Self Diagnosis
Supported model
Detected symptoms
- 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
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