Denon S-52 DAB Service Manual page 43

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(6) XM RADIO-in(S-52E3 only)
Check Power Supply Voltages for XM Ready circuit.
1U-3846-1(MAIN UNIT)
+5.3V_XM
+3.3V_XM
O.K.
Check Reset signal for XM Ready circuit.
1U-3846-1(MAIN UNIT)
[IC707]:11pin
[X_RST]:"H"level O.K.?
O.K.
Check Oscillation waveform.
1U-3846-1(MAIN UNIT)
[IC707]:26pin
45.1584MHz OK?
O.K.
Check control signal for XM Ready circuit.
1U-3846-1(MAIN UNIT)
[XM_RXD],[XM_TXD],[XM_LINKKACTIVE],
[XM_ANT_REV]
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L 1 3 9 4 2 2 9 6 5 1 3
O.K.
Check control signal for XM Ready circuit.
1U-3846-1(MAIN UNIT)
[RADIO_RXD],[RADIO_TXD],[UART_SEL0-1]
O.K.
Check Digital Audio Data output from XM Ready
circuit to BF. 1U-3846-1(MAIN UNIT)
[IC707]output and [IC101]input:
[XM_DATA]
O.K.
Check Digital Audio Data Clock from XM Ready
circuit to Clock selector. 1U-3846-1(MAIN UNIT)
[IC707]output and [IC305]input:
[XM_256FS],[XM_64_FS],[XM_FS]
O.K.
Check control signal for Clock selector.
w w w
1U-3846-1(MAIN UNIT)
[XM_FSSEL]:"L"level OK?
.
O.K.
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N.G Check Soldering.
IC108,CY111 on POWER UNIT.
IC711,CX111,CX081 on MAIN UNIT.
N.G Check Soldering.
[IC701]:42pin on MAIN UNIT.
N.G Check Soldering.
X701 on MAIN UNIT.
Check Soldering.
N.G [IC701]:43,45pin on MAIN UNIT.
IC705 on MAIN UNIT.
Check Soldering.
N.G [IC701]:29,30,65,66pin on MAIN UNIT.
IC705 on MAIN UNIT.
Check Soldering.
N.G [IC707]:37pin on MAIN UNIT.
R855,R135 on MAIN UNIT.
Check Soldering.
N.G [IC707]:39,41,43pin on MAIN UNIT.
R852,R853,R854,
R306,R305,R302 on MAIN UNIT.
Check Soldering.
N.G [IC701]:57pin on MAIN UNIT.
x a o [IC701]:1,4,10pin on MAIN UNIT. u 1 6 3
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S-52/S-52DAB/S-32
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