Denon S-52 DAB Service Manual page 46

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Check Digital Audio Data output from DM850
to CODEC. 1U-3846-1(MAIN UNIT)
[DM850] output and [IC300] input
[SPDIF_ETHER]
O.K.
Check Digital Audio Data output from CODEC to BF.
1U-3846-1(MAIN UNIT)
[IC300]output and [IC101]input:
[A/D_DATA]
O.K.
Check Digital Audio Data output from BF to CODEC.
1U-3846-1(MAIN UNIT)
[IC101]output and [IC300]input:
[D/A_DATA]
O.K.
END
(9) USB-in
Check Power Supply Voltages for USB
1U-3846-1(MAIN UNIT)
VBUS:+5V OK?
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O.K.
Check control signal for USB.
1U-3846-1(MAIN UNIT)
[USB_D+],[USB_D-],[USBID],
[USBVBUS],[USBVBUSDRV]
O.K.
Check Digital Audio Data output from DM850
to CODEC. 1U-3846-1(MAIN UNIT)
[DM850] output and [IC300] input
[SPDIF_ETHER]
O.K.
Check Digital Audio Data output from CODEC to BF.
1U-3846-1(MAIN UNIT)
[IC300]output and [IC101]input:
[A/D_DATA]
O.K.
Check Digital Audio Data output from BF to CODEC.
1U-3846-1(MAIN UNIT)
w w w
[IC101]output and [IC300]input:
[D/A_DATA]
.
O.K.
END
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N.G Check Soldering.
[IC501]:39pin,R198 on MAIN UNIT.
[IC300]:4pin on MAIN UNIT.
N.G Check Soldering.
[IC300]:12pin on MAIN UNIT.
R311,R144 on MAIN UNIT.
N.G Check Soldering.
[IC300]:32pin on MAIN UNIT.
R129,R134 on MAIN UNIT.
N.G Check Soldering.
IC505 on MAIN UNIT.
N.G Check Soldering.
[IC501]:37,48,49,51,52pin on MAIN UNIT.
N.G Check Soldering.
[IC501]:39pin,R198 on MAIN UNIT.
[IC300]:4pin on MAIN UNIT.
N.G Check Soldering.
[IC300]:12pin on MAIN UNIT.
R311,R144 on MAIN UNIT.
N.G Check Soldering.
[IC300]:32pin on MAIN UNIT.
R129,R134 on MAIN UNIT.
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