Friday, August 24, 2012

SONY KDF42WE655 KDF-50WE655 BLINKING CODES - SELF DIAGNOSIS

     When an error occurs, the Power supply\Standby or Lamp LED will flash to 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 first of the problem areas.  If the error occur simultaneously, the one that corresponds to the fewest flashes is identified first.
BLINKING CODES, AND SUSPECTED BOARDS


Item Description
Number of times flash
Probable causes
Detected symptoms


Lamp cover error
3-times
Lamp cover is not fastened securely

No picture/no sound

Fan error
4-times
Fan 1-4 power is not supplied [G2 board] * Fan connector is not seated securely
*Fan caught wires or hamesses.

No picture/no sound
Temp error
4-times
Internal temperature is too high. *  I2C line connector is not seated properly. (WE:H3 board, WF|XS:h4 board)

No picture/no sound.
Lamp drive error
5-times
Lamp driver defect

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 K board] {IC4703, IC4708, IC4710 on KD board}

No picture/no sound
Low B error
6-times
No DD 6V output (G1 board)

No picture/no sound
D-OVP error
8-times
Over voltage of +3.3V or +2.5V (A board, B board)

No picture/no sound
ATSC-OVP error
10-times
No DTL Module 5V output. (G1 board, G2 board)

No picture/no sound
Lamp error
Lamp-LED ON
Lamp is dead
No picture/no sound