Re: Scantronic 9100 fault

["Paul Ekins" <pmekins@xxxxxxxxxxxxxxxxxxxx>]

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?
Had a persistent tamper fault on a 9452 a few years back, even tried
soldering out the panel tamper switch, not worth the hassle, changed board
and all was good.


--
A fine is a tax for doing wrong. A tax is a fine for doing well.


Paul Ekins

Linc Secure



"Dave Partridge" <avvq64@xxxxxxxxxxxxx> wrote in message
news:R9qdnRmpDOBOdXLaRVnytAA@xxxxxxxxxxxx
> There is a fault with the alarm.   With the system in engineering mode,
> selecting 97/Enter (Engineer Walk Test), the display shows a tamper fault
> with zone 4.
>
> I have shorted zone 4 A/T loop and also zone 4 alarm loop at the panel,
> and the fault persists.
>
> My suspicion is possibly the TC4021BP shift register associated with the
> zones 1 to 4, but it could be a problem with the dirving circuits.
>
> Does recognise this fault?   Are circuit diagrams available?
>
> Thanks
> Dave
>