Author Topic: How to repair metex M 3850 m (Read 3375 times)

fles · « **on:** February 16, 2019, 07:05:03 pm »

Hello Everyone.
Today I connected a charged capacitor to the instrument, after which I only have a message on the display.
Does anyone know how to get rid of the malfunction.
Thank you.

Emo · « **Reply #1 on:** February 16, 2019, 07:45:16 pm »

Hi,

Probably the maxim MAX130CPL or the equivalent intersill 7106A has been overloaded due to the capacitor still having too much charge. This chip is mounted just underneath the LCD display.

Eric

fles · « **Reply #2 on:** February 17, 2019, 06:06:21 pm »

There is a different situation on this type than with me.

Is it possible that the marked elements in the images are damaged because they were first affected by a charged condenser?

fles · « **Reply #3 on:** February 22, 2019, 06:14:41 pm »

Is there any idea?

Emo · « **Reply #4 on:** February 22, 2019, 06:55:22 pm »

Hi,

Your version also has a service manual available

https://elektrotanya.com/metex_m3830_m3850.pdf/download.html

Are all ranges faulty, or just the capacitance range?

coromonadalix · « **Reply #5 on:** February 23, 2019, 04:47:19 am »

same as Emo said
Start with each range / function check the 2 fuses too

chances ic4 may have busted and or the ic 5 too


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Author Topic: How to repair metex M 3850 m (Read 3375 times)

fles

How to repair metex M 3850 m

Emo

Re: How to repair metex M 3850 m

fles

Re: How to repair metex M 3850 m

fles

Re: How to repair metex M 3850 m

Emo

Re: How to repair metex M 3850 m

coromonadalix

Re: How to repair metex M 3850 m

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