Sony XR-75Z9K Service Manual page 12

SELF DIAGNOSIS FUNCTION
Self Diag. Quick Reference (Not LED blinking [Record Only])
Error Item
TU_DEMOD
TCON ERR
AUD_ERR_I2C
TEMP_ERR_I2C
TU_DEMOD_I2C
EARC_ERR_I2C
8KBE_COM_ERR
8KSHV_ERR
AMB_ERR_I2C
<B>: Main board, <T>: T-con board, <H>: LED / IR & sensor board, <8>: 8KBE Board
Detection Items
-
<T> T-CON device I2C communication failure
<B> Audio amp I2C communication failure
<B/H> Temp sensor I2C communication failure
<B> Tuner & Demodulator I2C communication failure
-
<B/8> 8KBE Board I2C communication failure
-
<B/H> Ambient sensor I2C communication failure
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SYS SET