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Victor vc97 dmm problem

Hi

My Victor vc97 moltimeter brokedown imideately after installing battery (about 1 year is not used and has no battery during past year)
Only continuity test (buzzer) and frquency meter work and capacitor measurenment only read nanofarad
Other modes (eg v, ohm, teperature, ...) Do nut work
Any idea?
 
Comments
torokj
torokj picture

Hello,
Did you disassemble the function rotary switch?
Probably the copper switching elements are bad position.
It can also be caused by a burnt resistor,or other damaged component . 
tj

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zsugori
zsugori picture
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Amir
Amir  picture

Thank you for reply

I think the problem is some where else because other parts of meter also does not work (e.g Voltage measurement, Amper, Diode Test, Temprature Test and hfe test)

Only continuity test(Buzzer) and Frequencey meter work flawlessly and capacitor measuerement just measure in "NANOFARAD" range

Board Images

https://drive.google.com/file/d/1AxtsCe9rPZrqgIupKxbMqKsNXjL659lt/view?u...
https://drive.google.com/file/d/1x_DYqdACjxFLTrj7t818L7AeouhcCjDt/view?u...
https://drive.google.com/file/d/1maQekoR1_Wk7XG5eSNtKpTE86-9TiLpi/view?u...

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SzBálint
SzBálint picture
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Amir
Amir  picture

thank you for reply

I,ve seen this schematic. this schema version is 1.0 but for me the version number is 2.4

the booard images
Back: https:           //drive.google.com/file/d/1AxtsCe9rPZrqgIupKxbMqKsNXjL659lt/view?usp=share_link
Front : https:         //drive.google.com/file/d/1x_DYqdACjxFLTrj7t818L7AeouhcCjDt/view?usp=share_link
Controler: https:   //drive.google.com/file/d/1maQekoR1_Wk7XG5eSNtKpTE86-9TiLpi/view?usp=share_link

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