Neve 1095 fq response problems

Hello all,

We're trying to service a Neve 1095 module, we've got a few put into a sidecar with a fader installed. With the EQ out the fq response is flat, with the EQ in and all bands at 0, its about 15dB down at 20kHz. Its a common problem across about 3 of the modules. Can anyone think of any reason for this? Or does anyone have a schematic for these modules to help with diagnosing the root of the fault?

Thanks!

I don't know specifically about the 1095, but on some other modules I have serviced the high/low pass filter switch has caused similar issues.  Check that the two screws that hold the rotary switch decks together are tight and that contacts are clean.

Will check this out next week, cheers!