Analog Audio - LG BH100 Training Manual

ANALOG AUDIO

No audio
IC804 ~ IC806
(Pin 8) +11.5V
OK?
YES
IC802
(Pin 28) +5.0V
OK?
YES
R854, R839, R836
R878~R880 Soldering
OK?
YES
IC802 (Pin 7, 8, 9)
I2S input signal
OK?
YES
TP816 ~ TP821
audio out signal
OK?
YES
TP847
LOW = GND
OK?
YES
C8E1 ~ C8E6
soldering
OK?
YES
JK803 (Pin 11 ~ 21)
audio out signal
OK?
YES
Audio part OK
BH100 Blu-ray Player
C9E7
NO
(Pin 2) +12.0V
OK?
YES
C8F5
NO
(Pin 2) +5.0V
OK?
YES
NO
Re-soldering
NO
Check IC701
NO
Check IC802
NO
R884, R814
soldering OK?
YES
Q806
soldering OK?
NO
Re-soldering
NO
Change IC804 ~ 806
TROUBLESHOOTING
NO
(Pin 11) +12.0V
R882 Re-soldering
NO
(Pin 9, 8, 7) +5.0V
R855 Re-soldering
NO
Re-soldering
NO
Re-soldering
YES
Check IC701
Appendi
49
P901
Check main
NO
power cable
OK?
YES
L905 Re-soldering
P901
NO
OK?
YES
L901 ~ 903 Re-soldering
Troubleshooting