Denon DN-X600 Service Manual page 29

FLOW CHART NO.6 (8U-110086-1 : IN/OUT/PWR UNIT)
-15V is not outputted.
Is the fuse normal?
Is the voltage of +15V or more supplied to collector
terminal of Q5110
Is the voltage of +15V or more supplied to collector
terminal of Q5106
Check Q5106 and the periphery circuit, and replace
it if defective.
FLOW CHART NO.7 (8U-110086-1 : IN/OUT/PWR UNIT,8U-110086-2 : HP JACK UNIT)
The FADER START signal is not outputed.
• S3800 and S3801 are turned on.
Is +3.3V voltage supplied to 19pin, 20pin of N231?
Are the signals outputted to 18pin(PLAY1),
16pin(CUE1), 14pin(PLAY2), and 12pin(CUE2) of
U3400?
Check periphery circuit of K3502,K3503 from
U3400, and service it if defective.
O.K.
O.K.
O.K.
O.K.
O.K.
O.K.
O.K.
N.G.
See FLOW CHART NO.2 <The fuse blows out.>
N.G.
Check D5115,L5103,C5117,C5125,C5518 and
replace it if defective.
N.G.
Check Q5110,Q5109,Q5502,Q5512,D5120 and
replace it if defective.
N.G.
See FLOW CHART NO.9 <The slide switch
operation is not functioning.>
N.G.
Check periphery circuit of U3400 from N131, and
service it if defective. When the periphery circuit is
correct, U3400 is replaced.
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