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I have 2 of these that need repair. Both in Protect. A MPA250B schematic would work also...
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COntact Radio Shack Inc and ask if they will provide it.
Stuck in protect? First thing to do is check the output transistors for shorted. ALso look for any blown internal fuses, a missing rail will throw an amp into protect as easily as a shorted one.
Is there by any chance a TA3717 IC driving the protect relay? I never find the IC bad, but I often find the small value electrolytics around them dried up. Common symptom in Samson amps.Education is what you're left with after you have forgotten what you have learned. -
I went down to my local Rat Shack & question the heck out of the salesman. He went on the store computer and had no answers but a phone number I" call tmorrow. HE didn't know the original manufacture. If I get anywhere I'll post tomorrow.Originally posted by Enzo View PostComment
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Yeah, the store monkeys won't know anything. It has been a long time since I needed Radio Shack support, but in times past they were always forthcoming with schematics. That was through the headquarters. Doesn't matter who made it for them, as long as they have the drawings.Education is what you're left with after you have forgotten what you have learned.Comment
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If it helps, from the parts list:
Reference # Cat.No. Description NP Part #
12069811 MANUAL SERVICE 32-2004 MS3202004
12069829 MANUAL USERS 32-2004 MU3202004Comment
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I went on Radio Shack.com AND GOT THE PARTS LIST YOU FOUND. tHX! I also typed in the part numbers on the search and it shows discontinued. Thx for the help at least I have some numbers to work with..Originally posted by Mark Black View PostComment
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