Read Sharp VC-ME80HM Service Manual online
48
VC-ME80GM
VC-ME80HM
VC-ME80HM
YES
YES
YES
YES
NO
NO
NO
YES
YES
YES
NO
NO
YES
NO
NO
NO
NO
NO
YES
FLOW CHART NO.22 Hi-Fi SOUND MODE TROUBLESHOOTING(1)
Is there audio signal inputted at each input
terminal of IC6651 as shown in table?
Tuner input terminal.
(Audio sourse)
Front A/V input terminal.
E1 input terminal.
(Audio sourse)
L-ch R-ch
pin(13)
pin(8)
pin(15)
pin(10)
pin(13)
pin(8)
Check line ranging from pins(31), (30) of
IC1701(NICAM/IGR), to the each input
terminal of IC2501(decorder circuit).
Check line ranging from front audio input
terminal(J2301), to the each input terminal
of IC6301.
Check line ranging from pins(31), (30) of
IC2501(decoder circuit) or audio input
terminal, to the each input terminal of IC6651.
Is the supply voltage of 5V fed to pins(25),
(40) and 9V fed to pin(58) of IC6651?
Check line between pin(36) of IC6651 and
pin(21) of IC701.
Is there audio signal outputted at pin(11) of
IC201?
Check line between pin(11) of IC201 and
pin(62) of IC6651.
Is there "L" level at pin(36) of IC6651?
Check line between pin(36) of IC6651 and
pin(21) of IC701.
Is there audio signal inputted at pin(62) of
IC6651?
Line output terminal : Is there audio signal outputted at pins(53) and (57) of IC6651?
RF output terminal : Is there audio signal outputted at pin(59) of IC6651?
Line output terminal : Check line ranging from pins(53) and (57) of IC6651 to the audio output
terminal.
RF output terminal : Check line ranging from pin(59) of IC6301 to the audio input terminal of tuner
(TU1501).
Are there the serial data and clock at pins
(42) and (43) of IC6651?
Check line between pins(42), (43) of IC6651
and pins(17), (18) of IC701.
Check PC 5V and PC 9V lines.
<For Hi-Fi mode>
NO
NO
NO
Is there audio signal inputted at each input
terminal of IC201 as shown in table?
Beeper input terminal.
U/V tuner audio input terminal.
E1 input terminal.
pin(7)
pin(8)
pin(9)
Check line ranging from pin(97) of IC701.
Check line ranging from IF circuit.
Check line ranging from pin(61) of IC6651.
Replace IC201.
Replace IC6651.
Is there "L" level at pin(99) of IC201?
<For normal audio mode>
No Hi-Fi E-E sound heard.
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