i got this from my boss. he said it worked great, but when he went on vacation he unplugged it. (in case of storms) and when he plugged it back in, it didn't work. it was free, i'mma take it to the shop up the road and see what it'll cost to fix. it was free so i couldn't pass it up. the back says 350W. does anyone know anything about it? is it any good? well here's the pics...

ps its HEAVY. i threw it on the scale and its about 35lbs.

whoa, i think i have the tuner and receiver that matches that amp

It's nice...

for a solid-state, sand-and-silicon amplifier

ok MR. I like my sound to come from nothing...literally

it looks nice, yamaha has some good HT chit. but i dont use yamaha, only pioneer and JBL in out house

the shop up the road wants $70 just to look at it. so i'm probably just gonna try my luck. what would normally go wrong in an amp that comes on, but has no output?

bottom:

top:

caps & transformers:

transistors & heatsink:

the 2 amps ive repaird i it was the transistors, but it was easy to tell...they where burnt to a crisp, just got a new one of equal value and soldred it back in place and they both worked..

but i godda say, GD thoes are some beefy coponets

Looks nice.

But its got nothing on my old HK ( crap inside)

but i godda say, GD thoes are some beefy coponets

350wpc will do that, and Yamaha wasn't one to inflate their ratings...I bet it does somewhere very close to that or more. You could run electrostats off that, and the amp wouldn't blink. Maggies on that piece would be sweet, or a huge line array.

Get a schematic for it and you can start doing resistance and voltage checks.

Check for an internal fuse that's blown. I've bought many broken receivers off ebay that needed nothing other than a $.10 fuse.

I have my reciever wired up with a piece of speaker wire where the fuse goes

I blow fuses like nothing in this thing

Its probably more resistance than you would ever want but it works

the fuses are good. thats the first thing i checked. i plugged it in and was testing the transistors, and they looked to be good.....till i dropped the probe across 2 leads now i need 2 transistors, and something else. and i couldn't find a schematic. know where to find one?