k6003

I have a problem with k6003 kit.
It desplays err on display. Can someone plese tell me list of mailfuncitons that can provote err message.

By mistake i putted 3524 IC on wrog side so my frend told me that it 100% dead and I bought sg3524 and replaced the KA3524 whit sg3524.
But it still displays err message.

I would be happy if someone cold contact me on msn messenger and explane the mailfunction to me, becouse i’m in a bit of hurry (school project).

The SG3524 is not 100% compatible with KA3524, however, in most cases it does not generate an error message. There is probably still a problem in the temperature section of the circuit. Start by replacing the SG3524 with a CA3524 or KA3524.