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View Full Version : Flustered, no audio just click. Jumper problem?


mucklechumps
15-Jul-07, 17:39
Hi all,

this is my 2nd amp32. my first was an amp32PS and it woked great until I sent it too much AC voltage, but thats another story...

My new amp32 just clicks faintly in both speakers when powered up. I STILL dont understand the LED jumper configuration though. I've read the instructions over and over and looked at the diagrams many times AND been through the forum.
I currently have the + side of the LED in the 3rd hole (inside) in the box labeled J3. I have the - side of the LED in the middle hole and the jumper is in the outside hole. There is that very small hole that is inside the silkscreened box and I have nothing going to it.
When I put 13volts DC to the amp the LED does not light (I tested it with a 9v before install and it does work). I put my meter between the LED legs and get no DC voltage. I get 5v dc between the jumper wire that is in that outside hole and the LED - that is in the middle hole. Is that right?

All my solder joints seem to be ok, and Ive cleaned the board well. PLEASE HELP! Thanks.
mucklechumps
15-Jul-07, 17:52
OH, I should tell you I get the click through the speakers only when I join that outside jumper to the middle hole, LED-.

Thanks! Now, on to testing my just built AMP9!
mucklechumps
15-Jul-07, 23:47
If someone out there can give me an idea of what to test off the T-chip I'll test it. I do have the schematic and I dont totally understand it but I'm figuring it out slowly.
Please give me an idea as to which pin is #1 on the chip.

THANKS!!![:X]
V-bro
16-Jul-07, 13:28
Pin #1 counts from the 'dot'...(the angled corner....)

Clicks most of the times occur when something is shorted and the amp keep going to mute. It'll go on/off/on/off all the time resulting in clicks...

I've had this with an AMP32 once, it was caused by a diode that shorted to ground. (I didn't use insulating washers on the bolts through the screwholes, the nut on the bolt touched the diode....)

http://www.tripath.com/downloads/EB-TA2021B.pdf

------X-max. can be several meters on any driver, too bad it can be done only once...------