Sony KD-55A8F Service Manual page 11

Self Diag. Quick Reference (Not LED blinking [Record Only])
Error Item
( Not LED blinking
[Record Only])
TU_DEMOD
TCON ERR
AUD_ERR_I2C
Detection Items
<B/Tu> Tuner & Demodulator I2C communication failure
Tuner board set detect signal monitoring
None
*CR is shutdown by I2c communication failure[LD_ERR]
<B> Audio amp I2C communication failure
<G>: Power supply board,
<B>: Main board,
<T>: T-con board,
<P>: Panel module,
<S>: Speaker,
<Tu>: Tuner board,
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SYS SET