Scantronic 9448 and 9427 keypad

[dc6839]

After many years of excellent service the keypad (Mk 1) became unreliable and so I changed it for the newer (Mk2) version, with larger buttons. The change went well until I took it out of engineering mode and since then the tamper light has been illuminated. I had tried to remove and replace the keyboard several times but still get the same result. Keys now "beep" and the alarm won't set, although I can return it to engineering mode. Any advice would be much appreciated. Thanks

 

[sparkymarka]

Did you open the main control panel ?

 

[dc6839]

I did with my first attempt after which all appeared to be OK. ( I blew the fuse), but on the second attempt, when I insulated all of the wires, No. Thanks for your reply

 

[dc6839]

I did add some connectors on the 2nd attempt to avoid blowing fuses and to aid a quicker install.

 

[sparkymarka]

Ok try holding in the spring on the main control panel ( not the keypad ) ....and press 97 enter ....does the tamper clear while you are holding in the spring ?

 

[dc6839]

Thanks for your input. I'll try that tomorrow just in case the alrm activates ! Going to need long arms to reach the keypad and control box at the same time - LOL

 

[sparkymarka]

? ......97 enter puts it in walk test gives off intermittent tone for open zones and constant tone when clear ...

 

[dc6839]

Done as suggested. Tamper light stays ON. Intermittent tone all of the time. Unable to set alarm, just get two tone "beep"

 

[dc6839]

Can I disable the tamper circuit?

 

[sparkymarka]

Nope ....ok box up main panel ....take keypad off and hold in the tamper switch ....97 enter does tamper clear
? If not .....post some pictures of the inside of the control panel ( not keypad )
I assume you have checked ALL the fuses inc the bell one ?

 

[dc6839]

All 3 in control box fuses OK. Tamper reset does not work, with either keypad. Pictures as requested. Thanks for your help.