Sony KLV-40W300A / KLV-46W300A / KLV-52W300A Service Manual ▷ View online
KLV-40/46/52W300A (GA) 3-6
This indicates POWER Error, Low B error of 12V from GF1(GF2) board. TV Micro
(on AG board) pin150 detects POWER_ERR and shuts down chassis power to Stand-
by status.
(on AG board) pin150 detects POWER_ERR and shuts down chassis power to Stand-
by status.
TV Micro #150
Normal condition : High / Error case : Low
- Check 12V at CN002 #1#2 on AG board. And F200 on AG has 12V or not
- Check GF1(GF2) board.
3-3-3. POWER ERROR (RED 3 Times blink)
This indicates OVP (Over Voltage Protection) of GF1(GF2) board.
12V line or 6.5Vline on GF1(GF2) board is over-voltage.
TV Micro (on AG board) pin139 detects OVP ERR and shuts down chassis power to
Stand-by status.
TV Micro #139
Normal condition : Low / Error case : High
Replace GF1(GF2) board.
3-3-2. POWER OVP (RED 2 Times blink)
KLV-40/46/52W300A (GA) 3-7
This indicates panel power circuit error such as inverter.
BE micro pin 78 on FB2 board detects it.
BE micro pin 78 on FB2 board detects it.
BE Micro #78
Normal condition : High / Error case : Low
Replace DF boards.
3-3-5. BACK LIGHT ERROR (RED 6 Times blink)
This indicates T-CON RDY signal error from timing controller of Panel module.
BE micro pin 128 on FB2 board detects it.
BE Micro #128
Normal condition : High / Error case : Low
Replace Panel module.
3-3-4. T-CON ERROR (RED 5 Times blink)
KLV-40/46/52W300A (GA) 3-8
This indicates Audio Error (Protection). It happens;
- IC8806 on AG board, Audio Amp detects over current, thermal shut down and/or low
voltage of itself.
voltage of itself.
- DC voltage detected for speaker line.
Check above and replace AG board
3-3-7. AUDIO ERROR (RED 8 Times blink)
This indicates high temperature inside chassis. IC001 on AG Board Side is monitoring
temperature. IC001 is controlled by BEM I2C.
temperature. IC001 is controlled by BEM I2C.
When it happens;
- Check chassis environment
- Check around IC001 and replace AG if temperature monitoring circuit has problem
- Check panel
3-3-6. TEMP ERROR (RED 7 Times blink)
KLV-40/46/52W300A (GA) 3-9
This indicates DTAU Power error or Communication error.
[Power Error]
TV micro pin 165 on AG board detects it.
Check 12V and 6.5V via CN010 on AG board. (CN010 #1,#2 :12V,#5,#6 :6.5V)
Check harness connection CN010 on AG board and CON C1 on DTAU module.
Check above and replace DTAU board
.
[Communication Error]
TV micro on AG board and DTAU module communicate each other by UART.
Check harness connection CN011 on AG board and CON A1 on DTAU board.
Check above and replace DTAU board.
3-3-8. DTAU ERROR (RED 10 Times blink)
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