Electronic Engineer Discuss

Title: problem with Hantek 2D42 [Print this page]

Author: Tany50963    Time: 2022-9-10 22:04
Title: problem with Hantek 2D42
Edited by Tany50963 at 2022-9-10 22:16

Customer consultation
can you help me to fix this problem, thank you!My 2D42 I found R15 is burned out.
After Replace Resistor-Fixed,1K,1/16W,0.1%,TCR25ppm,R0603.
But use DMM to measure resistor 750 K ohms , It display wrong reading 438K
and can’t measure over 100mF capacitor (no reading) .







Author: Jing    Time: 2022-9-14 10:06


Dear Sir,
Please test whether the resistance of R14 is normal according to the figure below.


Author: Tany50963    Time: 2022-9-14 21:24
I found resistance of R19  around 450K, I will test all resisiance onc more time , your circuit diagram is very useful to me, thx!

Author: Tany50963    Time: 2022-10-22 23:10
Customer consultation
Today measure all resistor are correct.
But use DMM to measure resistor 750 K ohms , It display wrong reading 438K
and can’t measure over 100mF capacitor (no reading) .
can you help me ?





Welcome to Electronic Engineer Discuss (https://www.eediscuss.com/) Powered by Discuz! X3.2