What fuse does the Denon 3910ci player use? It says "2A" stamped on the circuit board but the engraving on the fuse in use looks more like .2A. Probably a dumb question since I have never see a .2A fuse...only 250mA. Looking to upgrade to a Furutech or Hi -Fi Tuning fuse.Thanks! dan

Try to solder a new one in.

SHOULD BE NEXT TO THE MOTOR MOUNT ON THE BLOCK AND IT IS NOT STAMPED IN LIKE YOU THINK.. THEIR IS A SMALL FLAT SPOT AND IT IS ENGRAVED . SO BE CAREFUL WHEN CLEANING IT OFF.. NO HARD BRISTLE WIRE BRUSH. USE A TOOTH BRUSH TO CLEAN OFF .. IT IS ENGRAVED.. I KNOW. IT MUST BE EASIER THAN PUTTING A STAMP ON THEM NOW..

The most probable cause is a blown fuse on the circuit board. It is a cylindrical glass component with two chrome colored ends, located near the AC cord wires soldered to the circuit board. It can be checked with a volt-ohm meter, it should read minimal, close to zero ohms, across the ends. This fuse is soldered to the circuit board, mine is a 2A fast blow fuse with one lead attached to each end. If the fuse is OK or a replacement does not fix the problem, the bridge rectifier is probably bad as mine was. I rigged up 4 power diodes rated at 120 Volts AC and 2 Amps current as a replacement.

The ratings will be stammped on the board next to the fuse if it doesnt say then its a 125V fuse amperage will be stamped on the fuse itself if not stamped on the circuit board next to the fuse.

There is a capacitor in the power supply that opens, and in some cases it will bulge at the top showing a tell tale sign it is bad.

Are they "switched" recepticles? I believe they are but, the picture I'm looking at is too small. This is the manual for the unit;
http://usa.denon.com/DocumentMaster/US/DRA-397-OM-E_103.pdf
This is the link:
http://usa.denon.com/US/Product/Pages/Product-Detail.aspx?Catid=3ae4a4d9-ae28-4018-bb66-611b99e1320d&SubId=0&ProductId=8e00bd6c-d3e2-466f-b5a0-c7ebe94e0bd9
Just glancing at the manual, of course it doesn't mention a fuse but, I'm quite syre if you pull off the cover, there is a fuse or two on the circuit board. Anyway, I wasn't trying to be smart about the "switched receticles and, you probably already knew but, if they are switched recepticles, they will only work when the unit is turned on.

The problem is the power circuit board part number GU-3413. It costs about $200 to replace and can be purchased from any of Denon's authorized parts distributors.

First how did it break?
Second - it can't be done and have the unit be reliable.
Get a new one - Denon that is.

Electronic - PC Board and Small Dimension Fuses - PC Board & Small Dimension Fuses 1/4” Dia. x 5/8” to 1” length ferrule fuses

AGA Specifications Decription: Fast-acting fuse. Dimensions: 1/4· x 5/8· (6.4 x 15.9mm). Construction: Glass tube. Ratings:Volts- 125Vac (or less)
Amps- 1/16-30A
IR- 10,000 (1/16-11/2A @ 125Vac)
- 200A (2-5A @ 125Vac)
- 1000A (6-30A @ 32Vac)
Agency Information: CE, Std. 248-14, UL File E19180, UL Listed, Guide JDYX 0-11/2A UL Recognized, Guide JDYX2 2-12A. Features and Benefits: · Fast-acting for maximum protection.
· Size rejects insertion of other fuse types. Typical Applications: · Electronic Circuits Catalog Number Amps AGA-1/16 1/16 AGA-1/10 1/10 AGA-1/8 1/8 AGA-1/4 1/4 AGA-3/8 3/8 AGA-1/2 1/2 AGA-6/10 6/10 AGA-3/4 3/4 AGA-1 1 AGA-1 1/2 1 1/2 AGA-2 2 AGA-2 1/2 2 1/2 AGA-3 3 AGA-5 5 AGA-6 6 AGA-7 7 AGA-7 1/2 7 1/2 AGA-10 10 AGA-15 15 AGA-20 20 AGA-25 25 AGA-30 30

Problem is in transformer on the primari or secondary or both side is short wireing. You should chang the transformer with the same type.
Robert