VM154 already assembled Delay Timer kit.
Details of the Error: I bought this kit VM154 anno beginning 2014 at Aitec Heverlee Belgium (I have in my possession the proof of purchase). The set I wanted to make it operational just in October 2016 due to some rebuilding delay(s). Onfortunate, the set did not working in a proper way example. The set is used with the light on/off switch to trigger the module for presence of the user (application 2 as mentioned on the user manual).
After thoroughly investigation, I found that it is not possible to make a detection on the LX trigger line. The connection indicated by L and the lamp symbol). Because all internal GND connections (also the PIC programmer IC –Vdd GND) are with respect to the F (phase) line coupled.
I make a schematic diagram by meself (no schematic found on Velleman (internet). Then it was clear for me that on the inputs onfortunate L (phase) and N was changed in the cupper layout. Example 1) juntion C1 and R1 was connected on de N (neutral) input instead of the (correct) F (phase line).
2) A jumper from all GND lines was connected to the F (phase) line after the 3.15A print mounting fusible instead of the (correct) N (neutral) line.
After this change in the layout the LX detection (presence of the light switch from the customer) level Low or High on input pin 4 IC PIC 10F200 (progammable PIC timer) works correct now.
Unfortunate: The kit works even not more in a proper way ! Al other voltage like 12V, 5.1V and the logic levels pin 4 and pin 8 are correct now.
I suppose that possible the PIC 10F200 is damaged possible on ESD (electromagnetic dicharging.
My question is now: Can I buy a new preprogrammed IC PIC 10F200 by Velleman ?
Thanks in advance……
With kind regards
Andre Vanderschrieck
M.Francisstraat 6
3150 Wespelaar
Vlaams Brabant
Belgie
+32016608526