Sony KDL-70X4500 / KLV-70X450A Service Manual ▷ View online
KLV-70X450A (E), KDL-70X4500 (NZ, ES) 2-3
2-3. NO POWER (Chart B)
YES
No RED LED
Blinks
NO
5VDC
CN2800 7pin
on FBA board
See
RED LED BLINKS
(Chart C)
NO
G8 board
(No STBY5V)
YES
NO
110-240VAC
CN6000 on
G8 board
YES
AC cable or AC inlet
No Power
(No relay clicks)
YES
Power key
doesn’t work
NO
H1VM board
A* board
* : AAS Board = KDL-70X4500
AGA Board = KLV-70X450A
AGA Board = KLV-70X450A
KLV-70X450A (E), KDL-70X4500 (NZ, ES) 2-4
2-4. SET REBOOTS
2-5. SELF DIAGNOSIS
2-5-1. RED LED BLINKS TABLE
TV micro (on A* board) is monitoring if BE Micro & EMMA (on FBA board) are alive
or on abnormal status by watch dog timer. When BEM or EMMA has not boot up, TVM
try to re-start. We can see chassis reboot at this case. Check whether FBA board is
supplied with correct power or not.
or on abnormal status by watch dog timer. When BEM or EMMA has not boot up, TVM
try to re-start. We can see chassis reboot at this case. Check whether FBA board is
supplied with correct power or not.
- FBA board
- CN 2800 12V power and harness to G6 board.
- F2800, F4100, F4101, F4102, F5400, F7800, F7801 conduction.
- CN 2800 12V power and harness to G6 board.
- F2800, F4100, F4101, F4102, F5400, F7800, F7801 conduction.
If power rail has no problem, replace FBA board.
* : AAS Board = KDL-70X4500
AGA Board = KLV-70X450A
AGA Board = KLV-70X450A
Power Error (watching 12V rail)
T-CON Error
[CCFL] Panel Inverter Error
[CCFL] Panel Inverter Error
[LED] GL board Error
Panel Temperature Abnormal Detection
Audio Abnormal Detection
FAN Error -> Not detect (reboot operation)
[CCFL] Panel Balancer Error
[LED-BL] SPI Error (Babylon Communication Error)
[LED-BL] SPI Error (Babylon Communication Error)
Contents
Display
(Self Diagnosis mode )
Red LED Blink
When self diagnosis happens, STBY (RED) LED blinks and
the history can be seen on display by self diagnosis mode.
the history can be seen on display by self diagnosis mode.
POW_ERR1
T_CON
BACKLITE
PANELTEMP
AUD_PROT
FAN_ERR
BALANCER
2
5
6
7
8
9
13
KLV-70X450A (E), KDL-70X4500 (NZ, ES) 2-5
NO
2 times
YES
See
1) Power Error
RED LED Blinks
NO
9 times
YES
See
6) FAN Error
NO
5 times
YES
See
2) T-CON Error
NO
6 times
YES
See
3) BACK LIGHT Error
NO
7 times
YES
See
4) TEMP Error
NO
8 times
YES
See
5) AUDIO Error
13 times
YES
See
7) Balancer Error
2-5-2. RED LED BLINKS (Chart C)
KLV-70X450A (E), KDL-70X4500 (NZ, ES) 2-6
1) Power Error (R ED 2 tim es blink )
This indicates POWER Error, Low B error of 12V from G8 board. TV Micro (on A* 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 A* board. And F1001 on A* board has 12V or not.
- Check G8 board.
- Check G8 board.
* : AAS Board = KDL-70X4500
AGA Board = KLV-70X450A
AGA Board = KLV-70X450A
2) 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 FBA board detects it.
BE micro pin128 on FBA board detects it.
BE Micro pin128 Normal condition : High / Error case : Low
Replace Panel module.
3) B ack Light Error (R ED 6 tim es blink )
This indicates panel power circuit error such as inverter.
BE micro pin 78 on FBA board detects it.
BE micro pin 78 on FBA board detects it.
BE Micro pin 78 Normal condition : High / Error case : Low
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