Denon DN-X1600, Service Manual, Page: 22 / 115

22
O.K.
O.K.
O.K.
-15VA is not outputted.
Is the fuse normal? See FLOW CHART NO.2 <The fuse blows out.>
Is the voltage of -15V or less supplied to IN terminal
of IC906?
Check D925 and replace it if defective.
Check IC906 and the periphery circuit, and replace
it if defective.
N.G.
N.G.
O.K.
O.K.
O.K.
The VFD display does not light up.
Is +5V voltage supplied to 1pin of CX071 on
POWER UNIT?
Check the +5V line and service it if defective.
N.G.
Is +3.3V voltage supplied to 3pin of CX071 on
POWER UNIT?
Check the +3.3V line and service it if defective.
N.G.
O.K.
Replace the VFD display.
Ia signal outputted from FL_CLK,FL_DATA,FL_
CS,FL_RST terminals of IC104 on MAIN UNIT?
Replace IC104.
N.G.
FLOW CHART NO.6 (8U-110068:POWER UNIT)
FLOW CHART NO.7 (8U-310012:MAIN UNIT, 8U-110068:POWER UNIT)