Denon S-102 Service Manual page 24

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(2) Check the Set-up process of B/E -COM
Check Power Supply Voltages.
1U-3836-1(MAIN UNIT) N.G
[IC101]:
+3.3V_D2,+2.0V_ESS O.K.?
O.K.
Check Clock waveform.
1U-3836-1(MAIN UNIT) N.G
[IC101]:49,105,116pin and
117pin.
27MHz(3.3V),O.K.?
O.K.
Check Reset signal.
1U-3836-1(MAIN UNIT) N.G
[IC101]:[BE_RST]24 pin.
"H"level O.K.?
O.K.
Check I C Signal.
1U-3836-1(MAIN UNIT)
[IC101]: N.G
"H"level at 160pin and 161pin.
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O.K.
1U-3836-1(MAIN UNIT)
Check Address,Data Bus between
[IC101],[1C102]and[IC103] N.G
O.K.
Check controll signal.
1U-3836-1(MAIN UNIT) N.G
[IC105]:[BE_ON]19 pin.
"H"level O.K.?
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Check Soldering.
[IC304]
[IC111]
Check 27MHz(3.3V)at (1) Check Soldering. of X101.
4pin of IC109. N.G (2) Check Soldering. of IC109
O.K.
Check Soldering. Of
R202
Check Soldering.
IC301,R112
Check Soldering.
1U-3836-1(MAIN UNIT)
[IC104]
Check Soldering at Address,Data Bus,Control Signal.
1U-3836-1(MAIN UNIT)
[LD0-LD7],[LCS3,LOE]
Check Soldering.
IC105
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S-102
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