- 27 -
Check the
Condition of all
Connectors, wafers, I2C
In corresponding
Signal flow?
Check 18V
supply at pin 55and
pin 30 of
AMP
Check audio
output at MSP
across R655,656,657
And 605.
Check the
supply voltage 8V
across L601-602
Check the PC
R/L signal across
R621,630; Analog_SIF at
R602; Side R/L at R619,620;
Front R/L at R617,618 and X-Studio
R/L at R658-659 according to
The corresponding
mode
Is
Volume level
Of the set
0?
Check
3.3V supply across
L305 and 2.5V at
L304
Check the
PWM output of NSP
across R325-328
Is
Mute ON?
Is the Set ON?
Correct them
Replace NSP
Power Error
Replace
TAS5122 (amp)
Power Error
Check the
Amplifier output level
At L300-303
There may be some
error in Audio source.
Increase the Volume
Turn OFF the Mute
Push the POWER ON key
Check the interfacing ciruit of
PC audio, Analog Tuner, Front
AV board, Side AV board or X-
Studio board accordingly w.r.t
the mode.
No Audio
Replace the MSP
NO
Yes
Y
es
NO
NO
Yes
FAIL
PASS
PASS
FAIL
FAIL
PASS
PASS
PASS
FAIL
FAIL
PASS
PASS
FAIL
PASS
FAIL
FAIL
TROUBLESHOOTING(AUDIO)
1. RF/A
V3/Component/ X-Studio/PC-Audio
