[sdiy] SAJ110 help please

[dragons]

Hi,
just a thought. have you checked the power supply voltages in the unit 
that the chips work in ? and are there any small differences ?
any change in the amount of ripple between the two units ?
and does the unit that the chips work in have the same top octave 
divider circuitry ?
I think you should use a scope to check the voltages going into the 
chips from the top divider and check the voltage levels between the two 
units.
the unit that the chips work in, are the resistors on the output pins 
different in value to the ones on the solina ?
faults like this can drive you round in circles !
( and I don't mean the track by Billy Preston ! )

regards Peter

On 18/06/10 23:43, Bob Weigel wrote:
> I had this solina all working and sold it on ebay.  Then it started
> manifesting this on my final check again. Some may recall that I had to
> remove and socket 6/8 of the divider chips in this one and work through
> like 20 chips which mostly worked in other things (a crumar organizer 2
> we were working on at the time...) but mostly didn't work in the solina.
> I barely had enough chips to get it working moving them around!
>