Denon S-52 DAB Service Manual page 45

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(8) ETHERNET-in
Check Power Supply Voltages for DM850(IC501)
and PHY(IC504). 1U-3846-1(MAIN UNIT)
+3.3V_E1
+1.8V_E1
[E_POWER]:"H"level OK?
O.K.
Check Reset signal for DM850.
1U-3846-1(MAIN UNIT)
[E_RST]:"H"level O.K.?
[IC501]:190pin [ERST]:"H"level OK?
O.K.
Check Oscillation waveform.
1U-3846-1(MAIN UNIT)
[IC501]:204pin
24.576MHz OK?
O.K.
Check control signal for DM850.
1U-3846-1(MAIN UNIT)
[E_RXD],[E_TXD],[E_REQ],[E_SPICS],
[E_SPICLK],[E_SPIMOEI],[E_SPIMIEO],
[E_MODE]
T E
L 1 3 9 4 2 2 9 6 5 1 3
O.K.
Check Reset signal for PHY.
1U-3846-1(MAIN UNIT)
[IC504]:42pin [ETH_PDOWN]:"H"level O.K.?
O.K.
Check Clock Signal for PHY.
1U-3846-1(MAIN UNIT)
[IC504]:46pin [MIIPHYCLK]
**********MHz OK?
O.K.
Check control signal for PHY.
1U-3846-1(MAIN UNIT)
[MIIMDIO],[MIIMDC],[MIIRXER],[MIICRS],
[MIIRXDV],[MIIRXCLK],[MIIRXD0-3],
[MIICOL],[MIITXEN],[MIITXCLK],[MIITXD0-3]
O.K.
Check control signal for ETHERNET.
1U-3846-1(MAIN UNIT)
[TD+/-],[RD+/-],[CTTD],[CTRD]
w w w
O.K.
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N.G Check Soldering.
IC511,IC512 on MAIN UNIT.
[IC701]:67pin on MAIN UNIT.
N.G Check Soldering.
[IC701]:69pin on MAIN UNIT.
TR505,TR506 on MAIN UNIT.
N.G Check Soldering.
X501 on MAIN UNIT.
Check Soldering.
N.G [IC701]:20,22,68,70,72,98,99,100pin
on MAIN UNIT.
[IC506] on MAIN UNIT.
N.G Check Soldering.
[IC501]:62pin on MAIN UNIT.
N.G Check Soldering.
[IC501]:81pin on MAIN UNIT.
Check Soldering.
N.G [IC501]:25-29,41,68-70,73-76,82,83,
97,98pin on MAIN UNIT.
Check Soldering.
N.G [IC504]:30-34pin on MAIN UNIT.
JK501 on MAIN UNIT.
CX071,CY071 on MAIN UNIT.
x a o u 1 6 3
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S-52/S-52DAB/S-32
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