Gear heads, tech question regarding receiver

[Cobster]

I got a receiver that just crapped out on me for no apparent reason.
I'm trying to figure out if it's the fuse or not but I'm having a hell of a time finding a 10A 125V fuse. Canadian Tire only has 10A 250V fuses, would this be okay to use since I can't find the 125V one?
Tried H-Depot and Rona, but nothing.

 

[STASH]

Try going to a electronic parts retailer. The source may have one but you may need to go to a more serious electronic parts store. Sorry I don't live in TO or I'd tell you where to go....opps. I'm sure one of the guys here knows where some are.
You could also just test your present fuse to see if it's blown. you need an OHM meter, if you have a meter, it's easy to check to see if it's blown. If your receiver has no power after replacing the fuse with a known good one, you are going to have to take it in to have it repaired. No power in the unit sounds like the internal power supply of the amp/receiver.
Remember most electronics now a days weren't meant to be repaired. Most stuff electronically is made to throw away these days. The expense of repairing stuff just doesn't make sense for some stuff in these disposable days.

By the way, replacing a fuse with a substitute one rated differantly is NOT a good idea. THe fuse is a safety devise designed to blow if something malfunctions. Use only the same rated fuse.

 

[A.J. Raven]

Active Surplus on Queen St.

http://www.activesurplus.com/

 

[a 1 player]

DO NOT use a fuse with a different voltage/ampage rating, you are just asking for damage to your equipment. Try Circut City (Radio Shack), chances are they will have what you require. You should also bring the fuse in to determine whether it is the fast blow or slow blow type.

 

[oldjones]

The Source by Circuit City (formerly Radio Shack). The store where you bought the receiver, any of its competitors—BayBloor comes to mind. I would not shop at a tire store or a lumberyard for electronic parts for my stereo, but I would check a Home Hardware if you pass one. Their managers are often surprisingly good at stocking gadgets and parts their customers actually need. Like hardware stores used to do before people got suckered in by BigBox hype.

 

[porn_lover]

these guys will carry it
http://www.sayal.com/
multiple locations, click on "contact us"

 

[Diode]

Use it.

Good Heavens..While its true that higher voltage ratings are designed not to arc over when overloaded, the difference between 120 VAC and 240VAC is really not that much.
In a pinch one could use a 24v fuse in a 120 volt ckt without too much to worry about.
It's simple to check the fuse. There are two was, one in ckt and one out of ckt.
You will need a Multi-meter: In CKT, turn power on, measure Vac across fuse( I'm assuming this is on the mains side of the transformer) If you read approx 120vac, fuse is open.If reads 0vac, or there abouts its not open.

Out of ckt: Remove fuse from fuse holder, with power OFF (and uplugged), set meter to resistance, measure from one end of fuse to other, If 0 ohms, or there abouts fuse ok, if High Megohms, fuse open)

Now if the failure occurs during start up, could be problems in the soft-start ckty. This ckt is designed to limit the inrush current to the power supply capacitors at startup.
It's often a realy, and sometimes the contacts become welded.
replace relay if needed.
Other than that, you're mostlikely looking at a short in the Drive ckty.
Either a MOSFET of FET pack, with a heat sink attached.
Look for a hole!
Replace if you can source.
(Testing MOSFETS and FETs in the field can be tricky.)
Good Luck.

 

[Moraff]

Good Heavens..While its true that higher voltage ratings are designed not to arc over when overloaded, the difference between 120 VAC and 240VAC is really not that much.
In a pinch one could use a 24v fuse in a 120 volt ckt without too much to worry about.

No, you would have lots to worry about, the 24V fuse would most likely arc across if it was used in a 120V circuit as you are asking it to perform beyond it's designed ability.

 

[Cobster]

Thanks guys, appreciated.
Gotta get something done, haven't figured this receiver issue out yet.

 

[Diode]

No, you would have lots to worry about, the 24V fuse would most likely arc across if it was used in a 120V circuit as you are asking it to perform beyond it's designed ability.

No. It really wouldn't.
I'm saying in a PINCH. But jeez you guys are like old women,
worry worry worry.....