Multimeter DT-9205AA

[Khamis]

It doesn't read vac & vdc

 

[Delta Prime]

does not it read VAC and VDC?


[please be nice]

 

[Bluejets]

It doesn't read vac & vdc

Unless you can see something obvious inside, might be better to simply get a new meter.
............then, whatever you did to disable the thing permanently, learn from your mistake and don't repeat.

 

[davenn]

does not it read VAC and VDC?


[please be nice]

that's what he said
obviously that's what the fault is

 

[davenn]

It doesn't read vac & vdc

they are only $10 on aliexpress, easier to buy a replacement

 

[Delta Prime]

that's what he said
obviously that's what the fault is

To the thread starter! Open up that multimeter and take a photo I'll help you..
But you have to know how to solder and that means desoldering as well..

 

[Harald Kapp]

I saw two different threads you guys combine them into one after the fact. Poor evidence I can't prove Jack...

Hmmmh, considering that the op has only 1 post, how's that possible?

 

[Delta Prime]

Hmmmh, considering that the op has only 1 post, how's that possible?

Simple. I made a mistake.
Apologies...
A house recently landed on my sister...

 

[roughshawd]

Mearly a smudge on the component I have to replace....

 

[Khamis]

To the thread starter! Open up that multimeter and take a photo I'll help you..
But you have to know how to solder and that means desoldering as well..

Thanks for yr.interest. I'll make a photo and send soon.

 

[Khamis]

Find 2 photos from inside

 

[Khamis]

Pls if you have schematic diagram, send me.

 

[Bluejets]

Maybe no connection to your fault but it looks like the shunt has been cut in half.

As for the circuit, google ct-9205 circuit diagram for images

 

[Khamis]

Maybe no connection to your fault but it looks like the shunt has been cut in half.

As for the circuit, google ct-9205 circuit diagram for images

Which shunt? Pls.clarify showing circuit to locate shunt.

 

[bertus]

Hello,

R15 is the shunt, the thick copper wire.
It looks like there is a cut on that wire.

Bertus

 

[Khamis]

Hello,

R15 is the shunt, the thick copper wire.
It looks like there is a cut on that wire.

Bertus

What's the function of R15?
What will I do if cut?

 

[bertus]

Hello,

R15 is the shunt resistor needed to be able to measure in the 20 Amp setting.
When damaged the range will be off.

Bertus

 

[Khamis]

Hello,

R15 is the shunt resistor needed to be able to measure in the 20 Amp setting.
When damaged the range will be off.

Bertus

Thanks , but my problem not in measuring Amp. but not measuring AC&DC.
Note: checked c13,Q1,Q4,Q5 in circuit - measured shorted completely.checked out circuit ok and still completely shorted at thier solderig joints on circuits.I think that short from processor IC.Are those elements relative to AC& DC measuring? I have no circuit diagram.

 

[bertus]

Hello,

On this other forum, there is a schematic:

https://www.elektroda.com/rtvforum/topic3328581.html

Bertus

 

[Khamis]

Hello,

On this other forum, there is a schematic:

https://www.elektroda.com/rtvforum/topic3328581.html

Bertus

Not found