Denon S-52 Service Manual page 45

(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]
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]
O.K.
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.
(8) ETHERNET入力
DM850(IC501)とPHY(IC504)用電源電圧確認
1U-3846-1(MAIN UNIT)
・ +3.3V_E1
・ +1.8V_E1
・ [E_POWER]:"H"level OK?
O.K.
DM850用RESET信号の確認
1U-3846-1(MAIN UNIT)
・ [E_RST]:"H"level O.K.?
・ [IC501]:190pin [ERST]:"H"level OK?
O.K.
発振波形確認
1U-3846-1(MAIN UNIT)
・ [IC501]:204pin
24.576MHz OK?
O.K.
DM850制御信号の確認
1U-3846-1(MAIN UNIT)
・ [E_RXD],[E_TXD],[E_REQ],[E_SPICS],
[E_SPICLK],[E_SPIMOEI],[E_SPIMIEO],
[E_MODE]
O.K.
PHY用RESET信号の確認
1U-3846-1(MAIN UNIT)
・ [IC504]:42pin [ETH_PDOWN]:"H"level O.K.?
O.K.
PHY用ｸﾛｯｸ信号の確認
1U-3846-1(MAIN UNIT)
・ [IC504]:46pin [MIIPHYCLK]
**********MHz OK?
O.K.
PHY制御信号の確認
1U-3846-1(MAIN UNIT)
・ [MIIMDIO],[MIIMDC],[MIIRXER],[MIICRS],
[MIIRXDV],[MIIRXCLK],[MIIRXD0-3],
[MIICOL],[MIITXEN],[MIITXCLK],[MIITXD0-3]
O.K.
ETHERNET制御信号の確認
1U-3846-1(MAIN UNIT)
・ [TD+/-],[RD+/-],[CTTD],[CTRD]
O.K.
45
S-52/S-52DAB/S-32
N.G 半田付けを確認
・ IC511,IC512 on MAIN UNIT.
・ [IC701]:67pin on MAIN UNIT.
N.G 半田付けを確認
・ [IC701]:69pin on MAIN UNIT.
・ TR505,TR506 on MAIN UNIT.
N.G 半田付けを確認
・ X501 on MAIN UNIT.
半田付けを確認
N.G ・ [IC701]:20,22,68,70,72,98,99,100pin
on MAIN UNIT.
・ [IC506] on MAIN UNIT.
N.G 半田付けを確認
・ [IC501]:62pin on MAIN UNIT.
N.G 半田付けを確認
・ [IC501]:81pin on MAIN UNIT.
半田付けを確認
N.G ・ [IC501]:25-29,41,68-70,73-76,82,83,
97,98pin on MAIN UNIT.
半田付けを確認
N.G ・ [IC504]:30-34pin on MAIN UNIT.
・ JK501 on MAIN UNIT.
・ CX071,CY071 on MAIN UNIT.