700/1 “Tim” WOPL driver board

[Gepetto]

Nice work Andrew

 

[AngrySailor]

Huh. Probably shoulda cleaned as I went along. Hard to get atbsome stuff now... gotta get s small paint brush or something. The board almost looks worse now, just smeared dirt all around... anyone use air to blownthe alcohol off?

 

[Gepetto]

Huh. Probably shoulda cleaned as I went along. Hard to get atbsome stuff now... gotta get s small paint brush or something. The board almost looks worse now, just smeared dirt all around... anyone use air to blownthe alcohol off?

I use my heat gun on the no heat setting to evaporate excess alcohol off the cleaned board.

 

[AngrySailor]

Huh. Just powered Tim up on a dbt then direct just to refresh my memory as to where I left off with this. I had changed the rectifier and had questionable DC offset, as Inhalf a volt. Now I’m testing it with a new meter and I’m getting 0.124v left and 0.008v right channel. Not as bad as I thought it was.

 

[AngrySailor]

I don’t see a board to amp wiring pin out for a quasi 700/1 in the instructions, does anyone have one?

 

[laatsch55]

Joe has those docs...ping im...

 

[laatsch55]

my email is screwed up or you would have already have had it!!~

 

[laatsch55]

Youre looking for the PL14-20 Wiring Chart..

 

[laatsch55]

Yeah, the wiring coming off the PL0171 board is different than the B or 2...

 

[laatsch55]

Offset is adjustable on the PL0171 board...

 

[AngrySailor]

I seem to remember not being able to get reasonable offset. I think my meter was on its way out though as it crapped completely not long after. Rocking a 179 now and man is that sensitive compared to my old meter.

 

[laatsch55]

Do you have a series 1 manual??

 

[laatsch55]

179 is a nice meter...good buy..

 

[AngrySailor]

Do you have a series 1 manual??

I think I do have the service manual yes... forgot I printed a pile of manuals... gotta find that binder think I know where it is.

 

[laatsch55]

Try adjusting offset now...just for shits and giggles...

 

[laatsch55]

Printed on ship paper??

 

[AngrySailor]

Printed on ship paper??

Ships ink and binder too... shhhh

 

[laatsch55]

Only way to go...

 

[AngrySailor]

This is the only page I have that covers the PL0171 board wiring.

 

[AngrySailor]

Try adjusting offset now...just for shits and giggles...

One channel 20mv the other around 100mv. Was able to get it down from almost 800mv with the level pot at min and max. My old meter was definitely fucky. Turn it on now and it reads 564mV with no leads attached. Still over spec on the offset but not as bad as I thought.