Sony KDL-70X4500 / KLV-70X450A Service Manual ▷ View online
KLV-70X450A (E), KDL-70X4500 (NZ, ES) 2-7
4) Tem p Error (R ED 7 tim es blink )
This indicates high temperature inside chassis. IC1000 on A* 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 A* board if temperature monitoring circuit has problem.
- Check chassis environment.
- Check around IC1000 and replace A* board if temperature monitoring circuit has problem.
* : AAS Board = KDL-70X4500
AGA Board = KLV-70X450A
AGA Board = KLV-70X450A
5) Audio Error (R ED 8 tim es blink )
.
.
This indicates Audio Error. (Protection)
It happens;
- Error of Speakers and Harness.
- Digital amp on K2 Board are High Temperature.
- Error of Speakers and Harness.
- Digital amp on K2 Board are High Temperature.
Check Voltage at CN1002 20pin on A* board. ( Low = Normal , High= Error)
If Error , Replace Speaker or Harness or K2 board.
If Error , Replace Speaker or Harness or K2 board.
- Low Voltage at IC1800 [ Audio_Vcc(=12V) , A9V , D3.3V ]
- Error of IC1800
- Error of IC1800
Replace A* board.
* : AAS Board = KDL-70X4500
AGA Board = KLV-70X450A
AGA Board = KLV-70X450A
KLV-70X450A (E), KDL-70X4500 (NZ, ES) 2-8
7) B alancer Error (R ED 13 tim es blink )
This indicates Inverter board error of panel module.
BE micro pin163 on FBA board detects it.
BE micro pin163 on FBA board detects it.
BE Micro pin163 Normal condition : High / Error case : Low
Check harness connection between CN 9700, 9701 on CF1 board and panel
module.
module.
6) FAN Error (R ED 9 tim es blink )
This indicates FAN error. (except 40 inch model)
BE micro pin154 on FBA board detects it.
BE micro pin154 on FBA board detects it.
BE Micro pin154 Normal condition : Low / Error case : High
- Check the harnessconnection of FAN.
- Check the Voltage at CN1301 on A* board. ( Low = Error , High = Normal)
- Check the Voltage at CN1301 on A* board. ( Low = Error , High = Normal)
Replace the FAN.
* : AAS Board = KDL-70X4500
AGA Board = KLV-70X450A
AGA Board = KLV-70X450A
KLV-70X450A (E), KDL-70X4500 (NZ, ES) 2-9
Here is trouble shooting flow related audio
Audio
problem
Only
Speaker out?
YES
NO
UI setting
correct?
Volume, SP off/On
HP Link
Analog
Channel
Problem ?
Digital
Channel
Problem?
HDMI
Problem ?
Set correctly or
reset by menu.
Check
Speaker
A* board
K2 board
Speaker
A* board
K2 board
NO
YES
NO
NO
Check
FBA board
A* board
K2 board
Joint connector
Check
A* board
Check
FBA board
A* board
Joint connector
YES
YES
YES
NO
Check
A* board
K2 board
* : AAS Board = KDL-70X4500
AGA Board = KLV-70X450A
AGA Board = KLV-70X450A
2-6. AUDIO PROBLEM (Chart D)
KLV-70X450A (E), KDL-70X4500 (NZ, ES) 2-10
Here is trouble shooting flow related Video
Video
problem
problem
All inputs
have
problem?
have
problem?
YES
NO
Digital
/Analog
Channel
Problem ?
Component
Problem?
Problem?
HDMI
Problem ?
Problem ?
Check
LVDS harness
G8/G9 boards
FBA board
Panel Module
Cf1 board
LVDS harness
G8/G9 boards
FBA board
Panel Module
Cf1 board
NO
NO
Check
FBA board
A* board
Joint connector
FBA board
A* board
Joint connector
Check
FBA board
A* board
Joint connector
FBA board
A* board
Joint connector
Check
FBA board
A* board
Joint connector
FBA board
A* board
Joint connector
YES
YES
YES
NO
NO
Check
FBA board
FBA board
YES
YES
Back Light
turn on?
turn on?
OSD
appear ?
appear ?
NO
Check
LVDS harness
FBA board
Cf1 board
LVDS harness
FBA board
Cf1 board
VCBS
Problem?
Problem?
Check
A* board
A* board
YES
* : AAS Board = KDL-70X4500
AGA Board = KLV-70X450A
AGA Board = KLV-70X450A
2-7. VIDEO PROBLOM (Chart E)
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