Re: Scantronic 9100 fault

["Dave Partridge" <avvq64@xxxxxxxxxxxxx>]

I just bet you are :-)

I replaced the shift register to no effect.   Looks like some comparison
logic is screwed somewhere - possibly a NAND gate (if I'm lucky).

I'll put another few pounds worth of ICs in just in case they have blown,
and if that doesn't work, I need to look for a new panel :-(

D.
"Just Looking" <nospam@xxxxxxxxxx> wrote in message
news:47f1826b$0$17325$4c368faf@xxxxxxxxxxxxxxxxx
>I think I am glad that one is on your side of the pond.
>
> "Dave Partridge" <avvq64@xxxxxxxxxxxxx> wrote in message
> news:J7KdnRiurqs50WzanZ2dneKdnZydnZ2d@xxxxxxxxxxxx
>> Yes, I replaced zone 4 tamper with a link.
>>
>> D.
>> "Paul Ekins" <pmekins@xxxxxxxxxxxxxxxxxxxx> wrote in message
>> news:J39Ij.27658$jH5.2261@xxxxxxxxxxxxxxxxxxxxxxx
>> > Hi Dave,
>> >
>> > Haven't had this problem myself on a 9100, but have you tried replacing
>> > all tamper circuits with a link to see if the fault persists?
>>
>>
>
>