Read Sony KDL-65W850A / KDL-65W855A Service Manual online
RB1G
CHASSIS
W850/855A
Self Diagnostic Function
2-4. Standby LED Error Display
Note: Details refer to Troubleshooting Section.
Smart Core RED
LED blinking
t
Detection Items
Board Error Item
count
2x
Main 12V failure [MAIN_POWE]
* This failure is not saved.
G* Board Error
B* Board Error
B* Board Error
Main 5.0/3.3/1.8/1.0/ 1.1V failure [DC_ALERT]
* 5 0/1 0V failures are not saved
B* Board Error
3x
5.0/1.0V failures are not saved.
Audio amp. protection [AUD_PROT]
B* Board Error
Speaker
HDMI equalizer/switch I2C NACK [HDMI_EQ] *
There is Temp. sensor on the same I2C bus.
There is Temp. sensor on the same I2C bus.
B* Board Error
Tuner or demodulator I2C NACK [TU_DEMOD]
B* Board Error
AFE device I2C NACK [AFE_I2C]
B* Board Error
AFE device error SPI NACK [AFE_SPI] * only
for AEP,CH
B* Board Error
4x
LED driver failure/LED voltage protection
[LD_ERR]
Panel module
LED Driver
TCON device I2C NACK [TCON_ERR]
TCON device Initialization failure [TCON_ERR]
Tcon board
5x
Panel ID EEPROM I2C NACK (Also panel power
failure is a suspect) [P_ID_ERR]
failure is a suspect) [P_ID_ERR]
Panel module
Tcon board
G* Board Error
B* Board Error
B* Board Error
G* Board Error
(*)
6x
Backlight converter OVP [BACKLITE]
Tcon board
Panel module
B* Board Error
7x
Over temperature protection [TEMP_ERR]
Temp. sensor I2C NACK [TEMP_ERR] * There is
HDMI Eq on the same I2C bus.
HDMI Eq on the same I2C bus.
B* Board Error
Size
B* Board Type G* Board Type
11
q
8x
Software Error (Also the main board’s memory or
CAM module is a suspect)
CAM module is a suspect)
B* Board Error
65”
BA2SC G6&G7B
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