Fluke 117 dead? - Page 1
Forum section: electronics / repair

author: erickbol13
author_rank: Newbie
timestamp: June 01, 2017, 11:33:54 pm
content: I have a Fluke 117while testing a bad power supply board hi voltage sparked and killed my meter. would anyone know what it would be? any help I appreciate it.thanks

author: retiredcaps
author_rank: Super Contributor
timestamp: June 01, 2017, 11:42:28 pm
content: Explain "killed". Does it turn on? Can you measure a 1.5V AA cell? 1k ohm resistor?Post clear focused pictures of the pcb both sides.

author: erickbol13
author_rank: Newbie
timestamp: June 01, 2017, 11:46:33 pm
content: it does not power on any more.ima post pictures in a bit

author: jeroen79
author_rank: Frequent Contributor
timestamp: June 01, 2017, 11:50:55 pm
content: Exactly what happened when "hi voltage sparked"?What were you trying to do?Exactly how is your meter "killed"?Do a full function check, what is and what is not working?Do you see anything on the display?Does it beep when switching function or using the continuity test?Does the backlight work? or the voltalert?Can you measure current coming out when in diode or resistance mode?Open up the meter.Do you see any damaged components?If that does not give you an answer you will have to investigate further.Take measurements (voltage/frequency) around components.But that will require some level of knowledge.

author: erickbol13
author_rank: Newbie
timestamp: June 02, 2017, 12:05:35 am
content: I burn the connect line on the circuit board but I re fix that as u see on the first pic. TP11 to S5

author: retiredcaps
author_rank: Super Contributor
timestamp: June 02, 2017, 01:08:52 am
content: Post a clear focused picture with the white rotary switch removed so we can see the contacts underneath for damage.If you hookup this meter to a 9V DC power supply, what is the current draw of the meter?

author: retiredcaps
author_rank: Super Contributor
timestamp: June 02, 2017, 01:57:44 am
content: By removing the white plastic, we are looking for something like this.http://mrmodemhead.com/blog/ideal-carbon-footprint/

author: erickbol13
author_rank: Newbie
timestamp: June 02, 2017, 02:28:20 am
content: here the pic. and when u say the current draw? of what? on my dead meter?I did supply 9v DC n I get nothing on display. oooh and I do have a back up meter my VC97

author: joeqsmith
author_rank: Super Contributor
timestamp: June 02, 2017, 02:43:58 am
content: Quote from: erickbol13 on June 01, 2017, 11:33:54 pmI am interested in hearing a little more about this power supply you were looking at and where you were probing when the meter was damaged. Could you please provide the manufacture and part number for the supply and maybe a picture of where you were probing? Thanks.

author: jeroen79
author_rank: Frequent Contributor
timestamp: June 02, 2017, 02:52:07 am
content: Quote from: erickbol13 on June 02, 2017, 02:28:20 amYes.Provide it with 9V and see how much current it draws.

author: retiredcaps
author_rank: Super Contributor
timestamp: June 02, 2017, 02:59:48 am
content: Quote from: jeroen79 on June 02, 2017, 02:52:07 amYes. What erick said. My guess it should be around 2mA.

author: erickbol13
author_rank: Newbie
timestamp: June 02, 2017, 03:53:41 am
content: that's what I'm getting

author: eKretz
author_rank: Frequent Contributor
timestamp: June 02, 2017, 04:11:37 am
content: Ehh, current is usually measured in amps, not volts.

author: erickbol13
author_rank: Newbie
timestamp: June 02, 2017, 05:10:19 am
content: is that right

author: P90
author_rank: Frequent Contributor
timestamp: June 02, 2017, 05:55:45 am
content: Quote from: eKretz on June 02, 2017, 04:11:37 amFIFY

author: retiredcaps
author_rank: Super Contributor
timestamp: June 02, 2017, 06:23:13 am
content: If the 117 is drawing 118mA, something is seriously wrong. Sound might be getting warm/hot on the pcb. It is possible the main IC is shorted in someway.At 118mA, a 9V battery would last 4 or 5 hours. The Fluke 117 has a rated 400 battery life according to the manual.

author: noidea
author_rank: Unknown
timestamp: June 02, 2017, 06:56:45 am
content: Quote from: erickbol13 on June 02, 2017, 12:05:35 amS5 is the backlight button contact, how on earth can measuring a voltage damage that??

author: retiredcaps
author_rank: Super Contributor
timestamp: June 02, 2017, 05:24:24 pm
content: Quote from: erickbol13 on June 02, 2017, 05:10:19 amShow us a picture of the entire setup to get 0.118A.

author: Twoflower
author_rank: Frequent Contributor
timestamp: June 02, 2017, 06:35:09 pm
content: Er. Why on earth is a MOV connected to the S5 which is the switch for the backlight? I think the fix is wrong! Can you remove the fix you did there? And re-check the measurements you've done?

author: amc184
author_rank: Regular Contributor
timestamp: June 03, 2017, 05:29:28 am
content: Like Twoflower said, there shouldn't be a connection where that 'trace repair' has been made.My guess is that there has been a flashover from the input to one of the pads of S5, which has left a black mark. You've thought that a trace has been burned off there, and replaced it with a wire. Is that right?Unfortunately, I don't think the controller will be okay after taking a hit like that to one of the keypad inputs.