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jimbob005 · 23 June 2010, 00:44

hi all
I know zetr0 say he would have a look for me but i was thinking if its something easy i could do it my self so i started ..

now i found this on the net
http://amiga.serveftp.net/audio_repair.html

then got out my multimeter and started testing the LF347 and i was getting -9.8 on pin 1,2,3,5,6,7,8,9,10,12,13,14 on pin 4 was +12 and 11 was -12

but i tested the vref i changed the caps and still getting -12 from it

so i tested the ohms on pin 13-14 and got nothing as i was thing that the lf347 was gone any was i had another one that tested ok so i desolderd it and poped the other one on and fixed the broken pads and tracks

but now still no sound but im now getting +12 on pins 1,2,3,5,6,7,8,9,10,12,13,14 still the same on pins 4 and 11

any one help?

23 June 2010, 00:44	#1
jimbob005 Registered User Join Date: May 2007 Location: swadlincote, uk Age: 43 Posts: 226	need help on a4000 audio hi all I know zetr0 say he would have a look for me but i was thinking if its something easy i could do it my self so i started .. now i found this on the net http://amiga.serveftp.net/audio_repair.html then got out my multimeter and started testing the LF347 and i was getting -9.8 on pin 1,2,3,5,6,7,8,9,10,12,13,14 on pin 4 was +12 and 11 was -12 but i tested the vref i changed the caps and still getting -12 from it so i tested the ohms on pin 13-14 and got nothing as i was thing that the lf347 was gone any was i had another one that tested ok so i desolderd it and poped the other one on and fixed the broken pads and tracks but now still no sound but im now getting +12 on pins 1,2,3,5,6,7,8,9,10,12,13,14 still the same on pins 4 and 11 any one help?