[Central-Electronics] Slicer PS-1 help

[K6JEK]

Do any of you have any experience servicing the PS-1 in the sideband  
slicer?

After considerable delay, I starting working again on the sideband  
slicer model B.   I verified that PS-1 is a problem.   With equal  
inputs it has very unequal, outputs, one side attenuated and  
distorted..   Using a gaggle of clip leads I reversed the sections.    
Sure enough the trouble follows the top section, pins 2,3 in pin 4 out.

Well gosh.   In addition to very precise parts, it has trimmers  
bridged by mica caps.  Before I start unsoldering parts I thought I'd  
turn those trimmers a little to see what happens.   I mean what the  
heck.    It sure would be great if one of you knows the procedure for  
adjusting those trimmers.

Thanks,

Jon, K6JEK