Daewoo DUA-3270GB, Service Manual

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16
4. No Sound
Trouble Shooting Charts
Check
Mute or Volume Level
Check Speaker
And Connection
Check Audio_L/R
(#6,#12 of I602)
Check Sound B+
(#3, #16 of I602)
Check
#10 of I602
Check/Replace
Analog 5V, S/B 5V
Aound Mute Line
Check
#84~#85 of I501
Check
#72~#73
of I501
Check/Replace
B+, SCL,SDA
of Tuner
Check/Replace
SF01
Check/Replace
I501
Check/Replace
5V, Input signal
of I503
Check
#78~#79
of I501 Check
#76~#77
of I501
Check
B+, #106,#111
of I100
Check/Replace
B+,SCL,SDA
of TU300/I300
RF(Analog)
RF(Digital)
External(AV)
Check/Replace
D860
(Sound B+ Line)
Check/Replace
I602
Under 1V
Over 3V
Abnormal
Normal