ibanez cpl comprssor

jmpj45 · Post by **jmpj45** » 13 May 2023, 23:40

Hi i bought a ibanez cpl compessor really cheap. I new it didnt work well i have checked everything. i cant see anything burnt or broken what its doing is it will pass a signal when the pedal is turned off soon as you turn it on the signal stops. I even put a new ba6110 chip in it didnt do anything doing the same thing got a signal in bypass signal stops when you turn it on. I have checked all the voltages everthing is good. So would anybody have any ideas what is wrong with it. Here is the schematic i cant find the cpl schematic so i have to use this one its the same cirquit.

ibanez_cp10_sch.pdf: (80.99 KiB) Downloaded 37 times

Lani · Post by **Lani** » 14 May 2023, 02:59

I would check the jfets off of the bypass flip flop... Could try jumping D to S on them to see if you get signal then...

Dirk_Hendrik · Post by **Dirk_Hendrik** » 14 May 2023, 11:08

As far as I know the CPL and the CP10 are identical. Start by verifying supply voltages.

jmpj45 · Post by **jmpj45** » 14 May 2023, 16:12

I have checked all supply voltages bias voltages everything is good.

jmpj45 · Post by **jmpj45** » 14 May 2023, 16:58

I’ll check the Jfets get back to you thanks.

jmpj45 · Post by **jmpj45** » 14 May 2023, 19:04

I jumped the jfets it came on. I put 2 new jfets in it works perfect thanks lani. I guess the 15$ I bought it for wasn’t to bad lol.

Lani · Post by **Lani** » 15 May 2023, 00:34

Nice!! No worries homie!! Now you should have an extra ba6110 to play around with!

jmpj45 · Post by **jmpj45** » 15 May 2023, 00:39

Yes I bought 2 ba6110 I got 2 now.