Sony KDL-46X4500 / KDL-55X4500 (serv.man2) Service Manual ▷ View online
KDL-46/55X4500 (K) 2-5
2-2-3-2. RED LED BLINKS (Chart C)
NO
2 times
YES
See
1) Power Error
1) Power Error
RED LED Blinks
NO
9 times
YES
See
7) FAN Error
7) FAN Error
NO
5 times
YES
See
3) T-CON Error
3) T-CON Error
6 times
YES
See
4) BACK LIGHT Error
4) BACK LIGHT Error
NO
8 times
YES
See
6) AUDIO Error
6) AUDIO Error
13 times
YES
See
8) Balancer Error
8) Balancer Error
NO
3 times
YES
See
2) DC_ALERT1
2) DC_ALERT1
NO
7 times
YES
See
5) TEMP Error
5) TEMP Error
KDL-46/55X4500 (K) 2-6
1) Power Error (R ED 2 tim es blink )
This indicates POWER Error, Low B error of 12V from G6 board. TV Micro (on AU board)
monitors pin79 and pin138 to detect POWER_ERR and shuts down chassis power to
Standby status.
monitors pin79 and pin138 to detect POWER_ERR and shuts down chassis power to
Standby status.
TV Micro pin138 Normal condition : Low / Error case : High
TV Micro pin79 i_lb_err< 0.7V(PW_ERR_LEV)
TV Micro pin79 i_lb_err< 0.7V(PW_ERR_LEV)
- Check 12V at CN 1000 on AU board. And F1001 on AU has 12V or not.
- Check G6 board.
- Check G6 board.
2) DC_ALERT1 (RED 3 times blink)
This indicates Power Error, DC_ALERT1 of REG5V from FBU board.
TV Micro (on FBU board) Pin26 detects DC_ALERT1 and shuts down chassis power to
standby status.
TV Micro (on FBU board) Pin26 detects DC_ALERT1 and shuts down chassis power to
standby status.
TV Micro Pin26 Normal condition: High / Error case: Low
- Check 12V at CN1411 Pin11, Pin12 and Pn13 on FBU board.
And F7005 on FBU board has 12V or not.
- Check G6 Board.
- Check IC7132 (on FBU Board).
- Check IC7132 (on FBU Board).
3) T-CON Error (R ED 5 tim es blink )
This indicates T-CON RDY signal error from timing controller of Panel module.
BE micro pin128 on FBU board detects it.
BE micro pin128 on FBU board detects it.
BE Micro pin128 Normal condition : High / Error case : Low
Replace Panel module.
KDL-46/55X4500 (K) 2-7
4) B ack Light Error (R ED 6 tim es blink )
This indicates panel power circuit error such as inverter.
BE micro pin 78 on FBU board detects it.
BE micro pin 78 on FBU board detects it.
BE Micro pin 78 Normal condition : High / Error case : Low
5) Tem p Error (R ED 7 tim es blink )
This indicates high temperature inside chassis. IC1000 on AU board Side is monitoring
temperature. IC1000 is controlled by BEM I2C.
temperature. IC1000 is controlled by BEM I2C.
When it happens;
- Check chassis environment.
- Check around IC1000 and replace AU board if temperature monitoring circuit has problem.
- Check chassis environment.
- Check around IC1000 and replace AU board if temperature monitoring circuit has problem.
6) Audio Error (R ED 8 tim es blink )
This indicates Audio Error. (Protection)
It happens;
- Error of Speakers and Harness.
- Error of Speakers and Harness.
Check Voltage at CN1002 20pin on AU board. ( Low = Normal , High= Error)
- Low Voltage at IC1800 [ Audio_Vcc(=12V) , A9V , D3.3V ]
- Error of IC1800
- Error of IC1800
Replace AU board.
.
.
KDL-46/55X4500 (K) 2-8
7) FAN Error (R ED 9 tim es blink )
This indicates FAN error. (except 40 inch model)
BE micro pin154 on FBU board detects it.
BE micro pin154 on FBU board detects it.
BE Micro pin154 Normal condition : Low / Error case : High
- Check the harnessconnection of FAN.
- Check the Voltage at CN1301 on AU board. ( Low = Error , High = Normal)
- Check the Voltage at CN1301 on AU board. ( Low = Error , High = Normal)
Replace the FAN.
8) B alancer Error (R ED 13 tim es blink )
This indicates Inverter board error of panel module.
BE micro pin163 on FBU board detects it.
BE micro pin163 on FBU board detects it.
BE Micro pin163 Normal condition : High / Error case : Low
46”, 55”: Check harness connection between CN 9700, 9701 on CB1 board and panel
module.
module.
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