SR technology jam 150 plus (Schertler) keep burning resistor R2

Thread Starter

Cesco77

Joined May 23, 2022
307
I notice that if I touch the C leg on Q1 it does make noise (like a power supply noise) and after few second I ear the relay clicking, with some vibrating noise as well, but only by touching the leg it does it, kind of me give it some extra energy when touching the leg, even tho no sound come out
 

Thread Starter

Cesco77

Joined May 23, 2022
307
Test it again if I stick with the red prob on the leg C of Q1 the relay start and it make sound, if not, it does nothing! I have to stay with the multimeter on collector on Q1 to make the relay start
 

Thread Starter

Cesco77

Joined May 23, 2022
307
Test it again if I stick with the red prob on the leg C of Q1 the relay start and it make sound, if not, it does nothing! I have to stay with the multimeter on collector on Q1 to make the relay start
-005 My friend forgive me, I feel shame to say, but before I take voltage with multimeter on diode mode
 

Thread Starter

Cesco77

Joined May 23, 2022
307
-005 My friend forgive me, I feel shame to say, but before I take voltage with multimeter on diode mode
the relay start by touch the leg with the multimeter on diode, if it is on volt, it does nothing as before, at least from my mistake we know that the relay is good
 
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