Read Sony KDL-70X4500 (serv.man3) Service Manual online
KDL-70X4500 (K) 2-7
4) 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.
5) 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.
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