Issue with Hantek 2C42

amy

Customer Consultation


Good morning,
the present mail to ask your support with a problem about the multimeter in question.
After making some correct lecture on 230V AC no value is displayed anymore.
Just a moment after I remove the tips, a very high number appears which slowly returns to the value of 0.
Is there a wiring diagram to be able to carry out diagnostics?



Reply


Please check if there are burnt components in the marked red box on the motherboard.
If so, please take a picture for me.

iu6bnv

Thanks a lot for your reply.
In attached a photo in wich is possible to see two component burned.
Could you please let me know the value of these 2 resistor (?)

amy

Please refer to this.
R15: Resistor-Fixed,1K,1/16W,0.1%,TCR25ppm,R0603
R14: Resistor-Fixed,10K,1/16W,0.1%,TCR25PPM,R0603

iu6bnv

Thanks a lot! I'll buy it and try to repair.
I'll coming back with a feedback.

Thanks for the support

iu6bnv

Update!
Replace the resistor as you suggest, the multimeter start to work correctly again!!!!
Thanks a lot for your support :-)