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-   -   MESR-100 METER SHORTED (https://www.diybanter.com/electronics-repair/642542-mesr-100-meter-shorted.html)

Stu jaxon December 8th 19 04:38 PM

MESR-100 METER SHORTED
 
Hi Group, can someone help please? I was working on a Hisense 40" LED TV, Testing the CAPS in circuit with the power on(plugged in), with the MESR-100 v2.3 meter and accidentally crossed the leads on the meter testing a cap, on the power supply and as far as i know, I only blew the fuse on the board, I removed 8 caps from the board and tested them with the meter and they all tested -0.00 I know that is not a correct reading, when initially turning on the meter it supposed to read OL now reads .729... so i tested the caps with a DMM and found three bad caps. can this meter be fixed?? any suggestions on this matter will be taken seriously, Thanks..

[email protected] December 8th 19 06:23 PM

MESR-100 METER SHORTED
 
Usual rebooting stuff first: Remove the battery, hold down the on/off switch for 30 seconds. Then try again. Please report back.

Peter Wieck
Melrose Park, PA

Stu jaxon December 8th 19 06:55 PM

MESR-100 METER SHORTED
 
On Sunday, December 8, 2019 at 1:23:54 PM UTC-5, wrote:
Usual rebooting stuff first: Remove the battery, hold down the on/off switch for 30 seconds. Then try again. Please report back.

Peter Wieck
Melrose Park, PA


did not work, still reading -0.00...

[email protected] December 9th 19 02:21 PM

MESR-100 METER SHORTED
 
I expect that it is toast, then.

Peter Wieck
Melrose Park, PA

Fox's Mercantile December 9th 19 02:36 PM

MESR-100 METER SHORTED
 
On 12/9/19 8:21 AM, wrote:
I expect that it is toast, then.


Look at it as an expensive lesson learned the hard way.


--
"I am a river to my people."
Jeff-1.0
WA6FWi
http:foxsmercantile.com

Chuck[_20_] December 9th 19 07:22 PM

MESR-100 METER SHORTED
 
On Sun, 8 Dec 2019 08:38:51 -0800 (PST), Stu jaxon
wrote:

Hi Group, can someone help please? I was working on a Hisense 40" LED TV, Testing the CAPS in circuit with the power on(plugged in), with the MESR-100 v2.3 meter and accidentally crossed the leads on the meter testing a cap, on the power supply and as far as i know, I only blew the fuse on the board, I removed 8 caps from the board and tested them with the meter and they all tested -0.00 I know that is not a correct reading, when initially turning on the meter it supposed to read OL now reads .729... so i tested the caps with a DMM and found three bad caps. can this meter be fixed?? any suggestions on this matter will be taken seriously, Thanks..

If you buy another ESR meter without voltage protection, try putting 2
power diodes in parallel across the input. Tie the cathode of one to
the anode of the other. It has protected my Bob Parker meter for
years.

[email protected] December 9th 19 08:34 PM

MESR-100 METER SHORTED
 
^ ^
I I
I--I--I
I I
I I
I--I--I
I I


Like this

Peter Wieck
Melrose Park, PA

John Robertson December 9th 19 09:46 PM

MESR-100 METER SHORTED
 
On 2019/12/09 11:22 a.m., Chuck wrote:
On Sun, 8 Dec 2019 08:38:51 -0800 (PST), Stu jaxon
wrote:

Hi Group, can someone help please? I was working on a Hisense 40" LED TV, Testing the CAPS in circuit with the power on(plugged in), with the MESR-100 v2.3 meter and accidentally crossed the leads on the meter testing a cap, on the power supply and as far as i know, I only blew the fuse on the board, I removed 8 caps from the board and tested them with the meter and they all tested -0.00 I know that is not a correct reading, when initially turning on the meter it supposed to read OL now reads .729... so i tested the caps with a DMM and found three bad caps. can this meter be fixed?? any suggestions on this matter will be taken seriously, Thanks..

If you buy another ESR meter without voltage protection, try putting 2
power diodes in parallel across the input. Tie the cathode of one to
the anode of the other. It has protected my Bob Parker meter for
years.


Bob Parker meters are good to 50VDC...

John :-#)#

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