Solid State Guitar Amp Forum | DIY Guitar Amplifiers

Solid State Amplifiers => Preamps and Effects => Topic started by: swt on January 13, 2019, 11:19:02 PM

Title: Aion lab series l5
Post by: swt on January 13, 2019, 11:19:02 PM
Hi. Just finished this project and i am having problems with r76. Before it, i have audio probe and tested the 4.40 ac volts as per calibration. Right after it, audio is almost lost and ac volts drops down to few millivolts. Any clues?
Title: Re: Aion lab series l5
Post by: Jazz P Bass on January 14, 2019, 12:00:25 AM
Schematic?????
Title: Re: Aion lab series l5
Post by: phatt on January 14, 2019, 07:04:16 AM
Power down and read the resistance across that resistor,, it maybe open and read a much higher that stated.
Phil.
Title: Re: Aion lab series l5
Post by: swt on January 14, 2019, 09:57:50 AM
Thanks for the replies. R76 reads ok at 99.8k. It must be something with ic 11 or q1.
Schem at aion site.
Title: Re: Aion lab series l5
Post by: Jazz P Bass on January 14, 2019, 01:51:05 PM
For those following along:
Title: Re: Aion lab series l5
Post by: swt on January 15, 2019, 09:01:26 AM
Solved. The 100p that was suppossed to be a multilayer was in fact an inductor. Bad supplier. Thanks a lot.
Title: Re: Aion lab series l5
Post by: g1 on January 15, 2019, 01:45:21 PM
C37 in the IC11 circuitry I guess?
Title: Re: Aion lab series l5
Post by: swt on January 15, 2019, 09:09:43 PM
Yes sir! C37...no wonder why ot wasn't working