Denon DVD-3800 Service Manual page 15

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2. No power
(Both FL tube & LED don't light.)
Check connector insertion.
Switching power (GU-3439-1):
[CX024, CY025, CX028, CY141,
CX041]
Main PWB (GU-3389):
[CX141, CX171]
Check switching power voltages.
[CY141]: 14P PH for Main PWB:
+5V(NSW) +3.3V(NSW)
"
Check Main PWB voltages.
[CX171]:
pin: +5V check
1
→CX171
(CX141
pin: +3.3V check
→CX171
(CX141
"
etc.
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Re-insert the connector.
No
Replace the switching power unit.
break check)
1
break check),
2
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DVD-3800
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