Sony KD-55A9F Service Manual page 12

Self Diag. Quick Reference (Not LED blinking [Record Only])
Error Item
TU_DEMOD <B/Tu> Tuner board set detect signal monitoring
None
TCON ERR
*CS model is shutdown by I2c communication failure[LD_ERR]
AUD_ERR_I2C <B/D/K> Audio amp I2C communication failure
TEMP_ERR_I2C <B/H> Temp sensor I2C communication failure
TU_DEMOD_I2C <B/Tu> Tuner & Demodulator I2C communication failure
EARC_ERR_I2C <B> eARC I2C communication failure
Blue italic: detect at startup sequence only.
<G>: Power supply board,
<B>: Main board,
<T>: T-con board,
<LD>: LD board,
<K>: Audio board (CS only)
<P>: Panel module,
<S>: Speaker,
<Tu>: Tuner board (CS only),
<H>:USB board (CS only),
<D>: 4KBE board (CS only)
CS
12
SYS SET