PG eq215 problem ....

bafukie · Post by **bafukie** » Sat Feb 02, 2008 2:51 am

Hi guys, juz bought the eq from twisted. Everything is good, from power to the knobs, everything except for 1 . The left side eq is showing some wear and tear problem, ie the knobs are not as sensitive as compared to the right. For example, when i move the knob 0 to +3 on any frequency on the right side, the diff is immediately heard. Not so for the left side, i prolly need to move 0 to +6 to hear the difference. So i wanna ask u guys is there anything i can do about it? Thanks

Post by **Eric D** » Sat Feb 02, 2008 5:36 am

Swap the right and left RCA input cables and see if the problem stays with the same knobs. If it does, then there may be an issue with the EQ or the amplifier after it. If it changes, then there is an issue before the EQ. Next swap the output RCA cables from left to right and see if the problem stays with the same knobs. If it does then the EQ is to blame. If it does not, then the amplifier is to blame.

At this would you would need to start troubleshooting the EQ itself.

bafukie · Post by **bafukie** » Sat Feb 02, 2008 6:37 am

well that didnt cross my mind to swap the input/output rca cables. Assuming that even with swapping, still the left eq is problematic, is there anything can be done?

1moreamp · Post by **1moreamp** » Sat Feb 02, 2008 3:25 pm

Both Eirc and i can test, and repair these EQs. I have done several with worse problems. Or you can send it to PG they have flat rates and fair turn around.
The device is quite complicated inside with all the op-amps and such, so unless you have the diagrams, or have been thru them a few times like I and Eric have been, your propbably gonna have trouble inside these just due to complexity reasons.

Please try a Y cable that will feed both L and R inputs the exact same signal, but leave the L and R output as is so a true direct comparison by ear and scope and multimeter can be made... this works for me even whe i use a Sig Gen to drive these with tones....hope this helps....C

Post by **Wakeup** » Sat Feb 02, 2008 4:53 pm

I also have spare parts for these eq's....I need to ship some off to C.

bafukie · Post by **bafukie** » Sat Feb 02, 2008 7:28 pm

1moreamp: thanks for the suggestion. will try it on later..i wish i can send it back to u to test and if needed get it repaired. but im not from US and it might cost a bomb for shipping back and flow.