hybridfree/eevblog-posts huggingface dataset:
Flashing Bios - Page 1
Forum section: electronics / repair

author: Kindev
author_rank: Newbie
timestamp: September 10, 2024, 01:04:10 am
content: I am in the process of flashing the bios on my bricked lenovo thinkpad p53s. I am using a raspberry pi and a pomona test clip, all is going well and i can read the flash chip as well as remove the old bios but i am having trouble figuring out what file is the new bios. I extracted the .FL1 file from the most recent bios update (n2iuj38w.iso) from the lenovo website. Using UEFITool I can explore the contents of the .FL1 file but I don't seem to know what file to write onto the flash chip. The only file that has the same size required by the bios is the padding. I am pretty stumped so if anyone had any idea on how to proceed that would be greatly appreciated

author: coromonadalix
author_rank: Super Contributor
timestamp: September 10, 2024, 01:24:13 am
content: ?https://www.reddit.com/r/thinkpad/comments/16v26yl/guide_thinkpad_bios_reading_patching_and_flashing/and you asked on other forums ... AND don't double thread

author: Simon
author_rank: Unknown
timestamp: September 10, 2024, 05:34:15 am
content: Quote from: Kindev on September 10, 2024, 01:04:10 amYou are in the process of pissing everyone off by posting the same thing twice. Who do you think you are? Don't!
Flex circuit repair - UV Soldermask or JBWeld or? - Page 1
Forum section: electronics / repair

author: bklein
author_rank: Contributor
timestamp: March 07, 2022, 10:33:24 pm
content: I have a torn flex circuit I am repairing. It goes to a front panel switch pad of a metal detector and is torn pretty close to the back of the pad. I have the traces jumped by pieces 2 or 3 pieces of .02mm wire I twisted together and soldered using solder paste and flux. Temporarily glued using CA glue to a thin piece of metal. This looks good. I want to cover this area to prevent any flexing which would break the wires. Should I use green UV soldermask, JB Weld or Gorilla Weld, or CA glue/baking soda? I tried hardening some of the UV soldermask and it doesn't work well unless it is really thin. I have no confidence it will adhere to the Kapton of the flex circuit. I'm thinking of trying JB Weld, Gorilla Weld, or CA glue and baking soda. What do you think?

author: TheMG
author_rank: Frequent Contributor
timestamp: March 08, 2022, 05:23:18 pm
content: A picture of what exactly you're dealing with would help greatly. There's no "one size fits all" solution to that kind of repair.

author: dnordquest
author_rank: Newbie
timestamp: March 08, 2022, 06:03:52 pm
content: Here's a link to a thread on Goop, as well as possible alternatives:https://e2e.ti.com/blogs_/archives/b/thesignal/posts/goop-a-sticky-topic
Flex PCB connector for HP laptop - looking for a tip - Page 1
Forum section: electronics / repair

author: Benta
author_rank: Super Contributor
timestamp: April 01, 2020, 06:24:00 pm
content: I managed to break a part of the flex PCB connector for the keyboard on my HP laptop.The connector is on the motherboard, ~1 mm pitch, ~30 pins, vertical, SMD.It consists of two parts: a white plastic body with gold contacts (which is OK) and a hinged brown plastic bar that presses the flex PCB onto the contacts. This is the part that broke.Can someone point me towards which manufacturer it is? White/brown is new to me.I'm hoping to get a new connector and just replace the brown bar.Thank You.

author: aqibi2000
author_rank: Regular Contributor
timestamp: April 01, 2020, 11:23:37 pm
content: Insert and place a thin piece of card where the retaining latch has broken off then kapton tape on topThen reinstall the keyboard and get back to scrolling

author: t1d
author_rank: Super Contributor
timestamp: April 02, 2020, 10:30:03 am
content: Quote from: aqibi2000 on April 01, 2020, 11:23:37 pmGoing with the make-a-repair theme, using adhesion... Instead of tape, go with a temporary glue... Hot glue might be tempting, but where there is heat, there is failure. Try Shoe Goo. It has good adhesion and is tough stuff. It will come off, but you have to work at it, a bit... It has "just-right" qualities.If you don't keep it in the refrigerator after opening it, it will spoil quickly. But, kept cold, it will last for many months.HTH.
Fluke 233 - Display resistor R209 - Page 1
Forum section: electronics / repair

author: COSMOS2K
author_rank: Contributor
timestamp: January 08, 2025, 10:02:28 am
content: Hello: I have had a breakdown in the Display module of my 233, and in the repair the resistance R209 has been beaten and I do not know its value.Through this resistance the tension of the batteries is measured and thus the processor represents on the screen if the btareias are operational or spent.I would appreciate if someone can measure this resistance and publish the value of it.Thanks in advance

author: m k
author_rank: Super Contributor
timestamp: January 13, 2025, 10:15:02 am
content: Maybe you can guess it.Start with something high, few megs maybe.
Flir A40M - Page 1
Forum section: electronics / repair

author: Jmenture425
author_rank: Contributor
timestamp: January 25, 2022, 09:31:15 am
content: Was working perfect for a month until Flir had me switch from QuickPlot to ResearchIR. That worked fine until they recommended we switch to another computer tower with windows 10. That windows 10 move screwed up something software wise that I haven’t been able to fully triangulate. I tried going back to the old fully functioning windows 8.1 computer and now while the camera connects and configures correctly, when I run ipconfig it shows media disconnected. I’ve tried everything my energy the past 3 days nonstop has allowed me to try. Wiping every FLIR file off the computer and reinstalling - nothing. Wipe everything again, used a proxy server, and disabled the autoconfig properties for the ipiv settings - nothing. Did the sph dns flush commands - nothing. So everything says connected working fine, but the media is still disconnected. I doubled check to make sure it wasn’t being crowded out by any other plug in. At this point the only thing I think I can do is a hard reset of the camera, but no idea how to do that on this model and FLIR doesn’t seem to know either. It’s just a beautiful camera and I would absolutely hate for it to die because of some freakin software glitch.
FLIR DM93 stuck on probe - Page 1
Forum section: electronics / repair

author: ctesla75
author_rank: Contributor
timestamp: March 31, 2025, 07:41:04 am
content: Hi All,I have been gifted an FLIR DM92 and an FLIR DM93. The DM92 works fine, however the DM93 is stuck displaying probe. All fuses ok, it looks to me like it uses two half probe connectors that short out when a probe is inserted , but it does short out when the probe is inserted, I cannot find a schematic for this meter. the dm92 does not display probe even with no probe connected , so it might be an added feature. Has anyone come across this before, Im not sure the value of the ptc's i havent removed the heatshrink yet but they measure the same. im not sure how to test the movs but will look into it. I have tried including photos but it comes up saying 8000k maximum, even though the total files is under 4mgbThanks for reading and any help.
FLIR HS-324 not functioning - Page 1
Forum section: electronics / repair

author: shooter50gill
author_rank: Newbie
timestamp: January 16, 2023, 01:51:10 am
content: I’ve got an old FLIR HS-324 that belongs to my place of work. It was probably bought ten years ago and was never messed with much. Currently, when powered on, it displays an inverted image. I’ve tried poking around on the buttons but haven’t figured anything out. I’m guessing it may need a firmware update but as I’m sure most know, this isn’t a supported model anymore. Does anyone have some insight as to where some old software can be found?
Flir identiFINDER 2 (R400) Help - $ Reward - Page 1
Forum section: electronics / repair

author: Hugoneus
author_rank: Frequent Contributor
timestamp: January 20, 2025, 04:16:19 am
content: Hello all,I am working on a video about the Flir identiFINDER 2. It is a gamma radiation meter and detector. It runs Windows CE internally and has a built-in webserver that I can access without issues. It has a USB connection which mounts as a network interface.Unfortunate the originally tube was broken. My replacement tube probably doesn’t match the internal calibration coefficients. If anyone can share any method to get to the factory adjustments I am happy to pay for your help.Any software, schematics, internal file system access, etc.

author: GGMM
author_rank: Frequent Contributor
timestamp: January 20, 2025, 08:11:40 am
content: Hello,see herehttps://manualzz.com/doc/html/6606788/icx-technologies-identifinder-2-gamma-spectrometer-user-m...Download the manualsee page 112cdt

author: Hugoneus
author_rank: Frequent Contributor
timestamp: January 20, 2025, 06:40:23 pm
content: Quote from: GGMM on January 20, 2025, 08:11:40 amThanks - unfortunately this shows the normal calibration process which the unit is failing. There must be a way to put the device into some kind of deeper access to settings. Something the factory would be doing for example.
FLIR  Rrepair required. - Page 1
Forum section: electronics / repair

author: richiewelsh
author_rank: Newbie
timestamp: March 01, 2021, 07:51:03 pm
content: Can anyone repair my FLIR i7.I accidentaly plugged the wrong charger in and seem to have blown the charger circuit.Everything works fine besides it wont charge the battery.I contacted Fraser on here who has been very helpful and he kindly explained this fault."You have damaged the power management IC that sits between the external power input, battery and camera electronics. The TVS input protection diode is also likely to have been activated. This is a relatively common occupancy on these cameras. The repair requires hot air reworking due to the power management IC’s case format and it is not a simple task due to the small size of the IC. The good news is that the IC is commonly available and not expensive."If anyone can repair this for me then please get in touch,thanks Richie...

author: JKKDev
author_rank: Regular Contributor
timestamp: March 02, 2021, 05:35:49 am
content: If noone responds you could contact TheCod3r on YouTube. He's from England and has the proper equipment and knowledge to do this for you. And we all could get a cool video out of it. (AFAIK he has a company that does customer repair so it shouldn't be shady corner type repair).
FLIR Thermal PTZ cameras Model T4332ZU - faulty power supply section - Page 1
Forum section: electronics / repair

author: cshikunyi
author_rank: Newbie
timestamp: March 09, 2020, 08:44:42 am
content: Members,I have a FLIR Thermal PTZ cameras Model T4332ZU that was knocked out by a power surge, I noted that the motherboard which houses the Memory SD card has a charred chip. Does anyone have a schematic diagram or can also identify the number of the charred chip from a similar broken camera section ?
FLU1-40 (9V) 40W - Page 1
Forum section: electronics / repair

author: Bjoern
author_rank: Contributor
timestamp: January 03, 2024, 09:11:01 am
content: Hi, I got this power supply FLU1-40 9V and the IC doesnt seem to get enough voltage to start operating.I measure 15V on pin 7 (UC3844) , and the datasheet requires 16.When I apply 16 externally the board works.The TL431 is somehow involved in controlling the voltage on pin7 but I am puzzled about the circuitry.Does anybody have the schematic for the FLU1 ?ThanksBjoern
Fluke (Wavetek) 9100 Calibrator - Page 1
Forum section: electronics / repair

author: Sandyman
author_rank: Newbie
timestamp: March 01, 2021, 04:23:43 pm
content: Does anyone have (or know someone who has) a Fluke (Wavetek) 9100 calibrator as a parts unit? Ours has a bad FPGA and they are no longer made!

author: jsolomonsc@gmail.com
author_rank: Contributor
timestamp: June 25, 2022, 10:02:17 pm
content: What is the status of your 9100? I have one that I am repairing and need parts. Unfortunately, most of the needed parts are cosmetic like the front cover and the knob. (victim of a car accident). If you are not willing to sell, would you be willing to have the parts scanned so I can have them 3D printed?
Fluke 107 energizer battery leaked - Page 1
Forum section: electronics / repair

author: vrsvgt
author_rank: Newbie
timestamp: November 15, 2022, 03:57:35 am
content: battery leaks inside multimeter and cleaned it up using 99% IPA bought new sets of battery after drying and turning on the multimeter it shows display and shows battery logo and after few secs it shutdowns so i bought another new battery to try it again but its the same it turns on with display plus the battery logo after few secs it beeps and shutdownvideo linkhttps://youtu.be/kT_g3Q55qZk
Fluke 111 AC problem - Page 1
Forum section: electronics / repair

author: goaty
author_rank: Regular Contributor
timestamp: May 13, 2020, 07:59:12 pm
content: Got a Fluke 111 in very nice condition, but got problems in AC:- AC Voltage when removed takes long and eventually never raches zero even with shorted leads- AC current takes time to measure approx correct current, but shows no frequency (works on voltage) and takes time to go back to zero.Any ideas which components might be the culprit ?I checked the caps, resistors (some have not value printed) and some assumed diodes and transistors which all measure plausible.Can cleaning help ?Its sister models are Fluke 110 and Fluke 113Thanks ,Thomas

author: retiredcaps
author_rank: Super Contributor
timestamp: May 14, 2020, 06:50:36 pm
content: Try taking apart the rotary knob carefully and slowly. Clean entire switch area and knob and it's connectors with IPA.See if the connectors or bent or broken.

author: goaty
author_rank: Regular Contributor
timestamp: May 15, 2020, 09:06:03 am
content: Thanks retiredcaps, I tried but it looks like new from factory. Also IPA did not improve.I wonder if these 11x meters are normally behaving like this (very slow AC current measurement, both to the measured value and back to zero)Also in Voltage AC, the meter is incredibly sensitive to 50Hz hum. Without shorting the leads it never goes to zero.

author: retiredcaps
author_rank: Super Contributor
timestamp: May 15, 2020, 07:16:18 pm
content: Quote from: goaty on May 15, 2020, 09:06:03 amI don't have one so I can't comment if it's normal or not.
Fluke 111 repair - Page 1
Forum section: electronics / repair

author: ferdzmac
author_rank: Newbie
timestamp: March 20, 2019, 01:48:12 pm
content: Hi folks!I would like to seek help for my Fluke111 as one of the part burn so i am not able to see the marking. Any kind soul have the same DMM and let me know the part no. I have attached the picture and indicated with a yellow arrow for the part. Thanks in advance.Best Regards,Ferdie

author: goaty
author_rank: Regular Contributor
timestamp: May 13, 2020, 07:41:02 pm
content: CR4 is marked "27 R"Q4 is marked "1CKH"
fluke 112 eeprom error - Page 1
Forum section: electronics / repair

author: pmosf
author_rank: Newbie
timestamp: April 16, 2024, 08:52:29 am
content: Hello,I have a multimeter fluke 112 showing "EEPr Err". According to the calibration manual, the unit has to be sent to fluke for repair ...I desoldered the eeprom to dump its content, it's full of 0xFF. I maybe broke one pin during desoldering ...Powering-up the meter without the eeprom shows "EEPr" only.I was wondering if anyone has the content of the eeprom and will be willing to share it ?Thanks

author: Swainster
author_rank: Frequent Contributor
timestamp: April 17, 2024, 10:47:55 am
content: If it's anything like my Fluke 115 problem (though I think mine reported "Cal Err"), then you really need to recalibrate/adjust the meter. Just copying someone else's eeprom would likely give inaccurate readings. The calibration manual is available online and adjusting the 112 looks much easier than my 115 - it should be possible to get a reasonable job done with basic equipment (although perhaps 6A might be a bit tricky to source), and a somewhat decent multimeter for reference.https://assets.tequipment.net/assets/1/26/Documents/110,111,112_CalibrationInformation.pdf

author: pmosf
author_rank: Newbie
timestamp: April 18, 2024, 07:47:08 am
content: EEPr Err is different from Cal ErrIt's not possible to enter the calibration mode with the EEPr error. Manual says:If the calibration procedure is not completed correctly, the Meter will not operate correctly. If calibrationis not completed correctly, the Meter alternates the messages “CaL” and “Err” on the display and you willneed to recalibrate the Meter. The meter is damaged and requires service if:• “CaL” and “Err” messages continue to appear after a proper recalibration.• “EEPr” and “Err” messages are alternating on the display.• “EEPr” message appears on the display.I just wanted to know if it's possible to recover this error without having to send it to fluke

author: Shock
author_rank: Super Contributor
timestamp: April 19, 2024, 10:25:05 am
content: My understanding is that Fluke service mostly part swap (unless it's a clean or calibration). This model can go cheap online as they aren't so common or obvious that it's a nice model. Might have to wait a bit for firmware, in the meantime you could provide details on the part you're programming and board revision.Some other details like how it got that error is also useful. As meters get contaminated by old batteries I'd have checked that first. If you break a leg often you can carefully excavate the package to expose enough to connect a wire on. See if it's essential for programming in the datasheet. You may have to wire it to a sacrificial socket/pcb in order to read/program easily or reliably.
Fluke 112 - need help with battery contacts - Page 1
Forum section: electronics / repair

author: Sebastiendope333
author_rank: Newbie
timestamp: December 24, 2020, 02:12:56 am
content: Hi, i am beginer of repairs. I need schematics of fluke 112. Or someone who told me that i make right becouse now my fluke 112 not working. This battery contacts is so pitty sh*** crinkle not strong. They fall with small piece of motherboard first layer i think. Need solution thx

author: retiredcaps
author_rank: Super Contributor
timestamp: December 24, 2020, 04:41:46 am
content: I suggest you clean the entire PCB in IPA first. Then tell us exactly what works and what doesn't work. For example, does DCV work, ohms? Is there power?

author: mzacharias
author_rank: Frequent Contributor
timestamp: December 24, 2020, 09:50:38 pm
content: This eBay listing may have what you need, Maybe contact the seller to be sure.Coming from China may take a while to receive.https://www.ebay.com/itm/Multimeter-Battery-Welded-Spring-for-FLUKE-15B-17B-18B-111-112-115C-116C/324097819980?hash=item4b75bc454c:g:V~4AAOSwxnVeZgxQ
fluke 114 - chipped edge of lcd, missing bottom lcd 'leg' on display - Page 1
Forum section: electronics / repair

author: wornoutwords
author_rank: Newbie
timestamp: February 04, 2021, 12:22:34 pm
content: hey alli have a fluke 114 where the bottom "leg" of the number display is missingi initially thought that rubber connector thing between the circuitboard and lcd was dirty, but it turns out the edge of the lcd glass got chipped and it's broken one of the connectionsany suggestions on what i might do to fix it?I've cleaned out the shards of glass hoping it was them interfering, but not such luck. I think if i can somehow bridge the connection it should start working ok, but i dont want to jam metal in there as its glass

author: tunk
author_rank: Super Contributor
timestamp: February 04, 2021, 02:44:13 pm
content: Never used it myself, but you could try conductive paint.

author: wornoutwords
author_rank: Newbie
timestamp: February 05, 2021, 12:59:58 am
content: thanks, hadn't thought of that.I've tried a strip of aluminium foil but that didn't work

author: bdunham7
author_rank: Super Contributor
timestamp: February 05, 2021, 03:10:43 am
content: https://www.amazon.com/CircuitWriter-Conductive-Ink-silver-based-4g/dp/B00B88B9KI

author: wornoutwords
author_rank: Newbie
timestamp: February 08, 2021, 11:51:24 am
content: it turns out its only 30 bucks for a new lcd from the local fluke repair place.. cheaper than a tube of the silver ink here in austhanks for the suggestions!

author: wornoutwords
author_rank: Newbie
timestamp: July 06, 2021, 07:47:09 am
content: in the interest of closure, i finally got the replacement lcd (i ordered it back in feb - they had covid delays getting fluke spare parts into aus) & it's all working again
Fluke 115 EEpr error - rewriting MSP430F448  - Page 1
Forum section: electronics / repair

author: tfm
author_rank: Contributor
timestamp: March 30, 2024, 09:08:26 pm
content: Hi,I have an offer on a Fluke 115 for about USD 30,00. This unit was working and all of sudden started continuously showing the EEpr error.Here is a teardown:https://www.youtube.com/watch?list=PLDBuVMDVJaX0MeCqN7ZFN_zlHAd8vzLmi&v=FnTi6n4lYNo&embeds_referring_euri=https%3A%2F%2Fwww.mjlorton.com%2F&source_ve_path=Mjg2NjY&feature=emb_logoThis unit has no external EEPROM, it seems like everything is handled/stored by the MSP430F448 MCU, so I assume this error must be a software error or some internal register got damaged.I wonder what could have caused it, say cosmic rays?? Or any other more mundane cause?Has anyone succeeded in reading the MCU's contents and rewriting it in another unit? The latter would require a new cal, of course.

author: Arhigos
author_rank: Regular Contributor
timestamp: March 31, 2024, 01:05:54 pm
content: Quote from: tfm on March 30, 2024, 09:08:26 pmBased on symptoms I think most likely yours chip just died .So you probably need to get a new chip, solder, program, do calibration adjustment and calibration verification..Probably easier to get a new meter
Fluke 115 Repair Help - Page 1
Forum section: electronics / repair

author: hassan58
author_rank: Newbie
timestamp: November 29, 2021, 11:48:44 am
content: I am looking for the following resistor values for a Fluke 115 that has been damagedThe board has FLUKE-117-3001 REV 008 on itImage attachedNeed the values for R38, R39, R42, R43, R46It would be helpful to confirm the values for R37, R40, R41 R44 and R45 as well please

author: rvalente
author_rank: Frequent Contributor
timestamp: October 12, 2022, 07:26:13 pm
content: Hope this helpsBoard FLUKE 117-3001 REV 009Model FLUKE 115

author: Ugur
author_rank: Regular Contributor
timestamp: October 13, 2022, 10:34:00 am
content: R38 : 150KR39 : 75KR42 : 75KR43 : 75KR46 : 49,9K

author: hassan58
author_rank: Newbie
timestamp: October 17, 2022, 05:25:44 am
content: Thanks @rvalente and @UgurYour help has resolved my problem
Fluke 117 backlight flickers - Page 1
Forum section: electronics / repair

author: Axtman
author_rank: Regular Contributor
timestamp: May 07, 2019, 03:33:40 pm
content: I have been exploring the "hidden" features on my Fluke 117 meter. For example holding down the "MIN MAX" button while turning the meter on (by turning the selector switch to any function) will display a "bEEP" on the screen and will disable the beep sound of the meter.When I hold down the blue "HOLD" button and turn the selector switch to "Vac/HZ" the meter displays all the possible LCD characters. Releasing the "HOLD" button and the all characters display disappears and meter functions as normal.When I hold down the blue "HOLD" button and turn the selector switch to "AUTO-V LoZ" the display reads "FCEy" (with the top bar missing from the "E" character) and the backlight flickers on and off. When I release the "HOLD" button the backlight still flickers but the meter does appear to function. If I turn the selector switch to "OFF" then turn the selector switch to any function, the meter operates just fine.Is this normal for my meter to do this weird thing? What does "FCEy" mean?

author: tooki
author_rank: Super Contributor
timestamp: May 07, 2019, 04:15:19 pm
content: https://www.eevblog.com/forum/testgear/what_s-going-on-with-my-fluke-117-meter/

author: Axtman
author_rank: Regular Contributor
timestamp: May 07, 2019, 04:18:38 pm
content: WOW! Am I going senile or what?!I thought that I had posted something about that issue previously on the EEVBlog but could not find it.I will put my tail between my legs and go crawl back into my hole.Thanks!

author: tooki
author_rank: Super Contributor
timestamp: May 07, 2019, 04:25:10 pm
content: I dunno, but I'm just 39 and sometimes wonder if my marbles are starting to come unfastened...

author: Axtman
author_rank: Regular Contributor
timestamp: May 07, 2019, 05:18:00 pm
content: I should have started my post with, "Stop me if you have heard this one before."
Fluke 117 "Err EEpr" - Page 1
Forum section: electronics / repair

author: fluzocapacitor
author_rank: Newbie
timestamp: January 21, 2024, 12:40:51 pm
content: Hi,My Fluke 117 is starting to fail. Sometimes, on turning it on it shows "Err EEpr". It is kind of an internal error, maybe a problem reading the EEPROM data embeded in the microcontroller. However, sometines it boots and I can use it.Have you ever repaired one os this?Regards,

author: Ugur
author_rank: Regular Contributor
timestamp: January 23, 2024, 05:30:47 am
content: Yes... Unfortunately, the microcontroller is defective and a new one has not been supplied for a while, so the device or card needs to be replaced.

author: shakalnokturn
author_rank: Super Contributor
timestamp: January 23, 2024, 09:26:17 pm
content: Is there any chance that it's only the calibration data that is losing consistency and that rewriting it by going through a full calibration (adjustment) could help ?
Fluke 117 & Fluke 1587FC with similar faults - current drain when switched OFF - Page 1
Forum section: electronics / repair

author: Oldtestgear
author_rank: Regular Contributor
timestamp: November 19, 2024, 12:35:19 pm
content: I acquired a Fluke 1587FC a few months ago which was faulty -- when switched "OFF" the circuit drew more current than when "ON". I tried cleaning the PCB & checked the switch. No difference as it still drew current when "OFF". Then I was given a Fluke 117 DMM that was also faulty. This one also drew excessive current when switched "OFF". The original owner had solved the problem by fitting a switch between the battery & the circuit board. Not exactly a neat job but it solved the problem.I changed the switch for a better fit & now have a working 117 & did the same hack on the 1587FC so that is now working.Apart from eating batteries both meters seem to work OK.Am I just unlucky with the Fluke DMMs I have acquired or has anyone else had a similar problem?
Fluke 117 no power - Page 1
Forum section: electronics / repair

author: Eugenelag43
author_rank: Newbie
timestamp: August 23, 2025, 01:22:06 am
content: Hello sir i have fluke 117 not powering on,there is a missing part of the board because it was burned due to wrong voltage input ,,the ic on u3 on board was burned,i want to know what the number value indicated on ic u3 i have no idea because the ic is already gone..,i will attachef the picture of missing ic and can you give me the exact model number of that ic,thank you in advance

author: Dougmc
author_rank: Contributor
timestamp: August 23, 2025, 01:59:44 am
content: This just states it's a 5v regBut may help u if still has other problemshttps://www.eevblog.com/forum/repair/fluke-117-_fatal_-error-message/

author: Eugenelag43
author_rank: Newbie
timestamp: August 23, 2025, 07:31:17 am
content: Than you very much for your help,still i cant see the value written on the u3 5 pin regulator,i will attached again the icture of fluke 117 with encircled part missing value,please send me the value number written on the u3 regulator

author: gamalot
author_rank: Super Contributor
timestamp: August 23, 2025, 11:55:02 am
content: It's a TPS77050DBVR:https://www.ti.com/lit/ds/symlink/tps770.pdf

author: Eugenelag43
author_rank: Newbie
timestamp: August 24, 2025, 07:14:19 am
content: Sir thank you very much for the help i apreciated so much,God bless you..These will help me a lot to find the spare part with exactly same model nuber on the ic..
Fluke 117 - weird behavior - Page 1
Forum section: electronics / repair

author: nick1911
author_rank: Newbie
timestamp: June 13, 2025, 03:37:28 pm
content: I made an error - I left my trusty Fluke 117 multimeter outside and it got rained on. I found it after one overnight.I took it all apart and found some moisture, but no corrosion or electrolytic damage was viable apparent. I got it all dried out, but found that it wouldn't turn on. Thinking there might be some residual moisture, I put the disassembled meter in a dehydrator, 125F overnight. In the morning, it powered up and seemed normal... until it cooled down.This cycle is repeatable. It's been in the dehydrator 5 times. Warm, it works fine. Room temperature, it's dead to the world. So weird.I've done a bit of troubleshooting. I found an unpopulated pin header that appears to give out both full battery voltage as well as 3v3. That does show that the 3v3 supply is working. It's kinda like the microcontroller just isn't starting?It's not an expensive meter, so if it's dead that's not the end of the world. But, the behavior has me stumped. I'd like to understand what's going on.My only real theory is that there is some semi-permeable component that has some moisture in it.I'm interested in any ideas or tests anyone has. I would classify myself as a beginner, but I do have an electronics workbench with some standard test equipment.

author: rsjsouza
author_rank: Super Contributor
timestamp: June 13, 2025, 04:46:10 pm
content: Does the meter beep in any way? Does it beep of put in the conductivity range or if you press any buttons? If so, it might be a problem with the display and the main PCB.If the meter is fully dead, my next suspicion would be with the crystal (not starting due to crud overloading it) or a slight short across the microcontroller pins. I would wash the board with IPA and then fully dry it.Good luck!
Fluke 123   OQ0257 T-Asic  search - Page 1
Forum section: electronics / repair

author: mario_nks
author_rank: Contributor
timestamp: July 18, 2023, 06:54:06 am
content: Hello,I'm looking for an OQ0257 T-Asic to repair my Fluke 123.Kind regardsMarkus

author: mario_nks
author_rank: Contributor
timestamp: July 21, 2023, 06:39:49 am
content: i got one best regardsMarkus

author: ApertureScience
author_rank: Contributor
timestamp: July 22, 2023, 04:00:59 am
content: Hello Markus!Would you mind sharing how you did acquire the part? Fluke Germany recently stated no availability to me. Thanks!

author: shakalnokturn
author_rank: Super Contributor
timestamp: July 24, 2023, 11:37:25 pm
content: Relative to this topic:https://www.eevblog.com/forum/repair/fluke-123-124-125-scopemeter-t-asic-needed/I'm also still in search of one that would cost less than the scope itself.The other option was design a flexible PCB holding the opamp for the reference voltages + micro conroller for I²C to relay control that would piggyback to the T-ASIC and solder relativley easily to the TQFP leads.

author: ApertureScience
author_rank: Contributor
timestamp: August 02, 2023, 09:42:04 am
content: I talked to Markus and he hasn't found the golden pot of Philips Asics. His T-Asic had data lines shorted and removing the short solved the problem. The search continues. I'm gonna check for shorted data lines. If I can't fix it, which I probably can't, I'm gonna sell the meter with good power and data Asic on eBay. Thanks Markus!
Fluke 123 / DSP1-L-1.5V - Page 1
Forum section: electronics / repair

author: Hasi
author_rank: Newbie
timestamp: September 25, 2018, 07:54:44 pm
content: Hi toghether,I am new on this platform. Just discovered it, while I'm desperatly looking for someone, who has the same problem like me.I own a 123. An old, but good one. Don't wanna miss it. Unfortunatly, I gave it away to a friend and got it back broken. Just fixed it all, as the Charging unit, Display and sticked Keyboard. One Problem remains. There's a NAIS Relay (named DSP1-L-1.5V or DSP1-L-DC1.5V). Also a DS for it to find is hard work. 2 Form A, or 2 Form B etc, My relay has a coil damage and even trying to measure it out - failed.I'm not able to find a substitue, the origin is obsolete. I tried nearly the whole Net to find one original/ or a substitute. No chance. So might be, that anyone of you could give me a suggestion. In case of, I want to let you know, that some information would be great for me. Even some hints for a DS or Pinout would help. Excuse my poor English.Thanks again and cheers.HasiHasi

author: electronics.moths
author_rank: Newbie
timestamp: January 31, 2021, 05:35:12 pm
content: Hello Hasi, I just have the same problem than you and i´m goint to atempt to fix it by usin the DSP1-L2-3V, or other similar lithe the 5v version, if i get any result, i will text you.if you have any question or maybe if you have decided not to fix your FLUX, let me know.i understand that it´s beeng a wile since you posted this report,thx

author: shakalnokturn
author_rank: Super Contributor
timestamp: January 31, 2021, 09:22:50 pm
content: You might try asking Scopemeter Repair in the US if all else fails.Can anyone confirm that Fluke used bistable relays in the 123 Scopemeter?

author: electronics.moths
author_rank: Newbie
timestamp: February 02, 2021, 04:33:41 pm
content: Hi shakalnokturn, in this case yes, this relay is bistable.Here you have some pictures i thake from it, and a screen shoot of the relay used
Fluke 123 no image on the screen - Page 1
Forum section: electronics / repair

author: Mayk86
author_rank: Newbie
timestamp: April 09, 2025, 09:26:00 am
content: Hello experts,I recently purchased a used Fluke 123 Industrial Scopemeter from an online Japanese auction site (jauce.com). It has now been delivered. Unfortunately, I overlooked the fact that the seller neither guarantees its working condition nor accepts returns.When I power it on, the backlight comes on, but there is no image on the screen. After opening the device, I noticed clear signs of previous soldering in several areas (photos attached). It seems someone attempted repairs before.At this point, I’ll have to try and fix it myself. Has anyone here encountered a similar issue with the Fluke 123 or similar models? Based on your experience, what could be the likely causes, and where would you suggest I start troubleshooting?Any insights would be greatly appreciated.Best regards,Mayk86
Fluke 123 Scopemeter is dead - Page 1
Forum section: electronics / repair

author: Jcm05
author_rank: Newbie
timestamp: May 10, 2023, 10:46:59 am
content: My Scopemeter 123 is broken.Unfortunately, I replaced the battery with a battery where the polarities were reversed.It fried resistors R504/506/507 and apparently nothing else.I replaced these 3 resistors with equivalent resistors but it still does not work.No ignition, no relay noise or buzzer.I performed all the tests in the Fluke service manual and found no abnormality.I have all the voltages necessary for starting including +3.3V.All transistors and diodes are compliant.According to the Fluke manual the software is corrupted and needs to be reloaded.What is the procedure and what software do I need to reload?Thank you for your help.

author: coromonadalix
author_rank: Super Contributor
timestamp: May 10, 2023, 10:48:45 am
content: https://www.eevblog.com/forum/testgear/fluke-123-firmware/

author: Jcm05
author_rank: Newbie
timestamp: May 10, 2023, 12:32:00 pm
content: I tried to reload the file but I have a communication error between the PC and the Scopemeter.In the Fluke info it is indicated that it is necessary to put the device on but it is impossible since it does not work.I tried my interface on another Scopemeter and it works without difficulty.Is there another way to put the Scopemeter into programming mode?

author: Greybeard
author_rank: Frequent Contributor
timestamp: May 11, 2023, 07:03:07 am
content: How could reversed battery corrupt firmware?If flash memory or CPU is fried by reversed battery you cannot reload firmware anyway, before flash/CPU has been renewed.

author: shakalnokturn
author_rank: Super Contributor
timestamp: May 13, 2023, 11:53:46 am
content: If you give up before wrecking it too much, I'm in France and looking for a cheap parts unit.
Fluke 123 scopemeter Repair - Page 1
Forum section: electronics / repair

author: Raymond
author_rank: Newbie
timestamp: June 02, 2017, 04:59:03 am
content: Hello there..I have a scopemeter 123 who is acting not okey.Wen i select continuous mode it start to buzz wen i put the probe a + com togehter it stops chiming it does not measuring cap mode and ohms.Wen i put the test leads in the wall from channel a and the com port i get the right readings 227v and showing a 50hz trace. Besides that nothing seems to work. Either i do not hear the clicking of the relays path waysI dont know what the do with this little boy but they seems to blew it good..Things i did check.Thermal protection ptc'sThe protection circuit. The diodes and the fusable resistorsThe reference circuit its showing the right value.From the service manuals.I hope there is some with a kind of this experiences who can give a tip where to look for i really lost in this tiny parts who calls (smd)Thank you so much for your timeTake careRaymondFrom Holland

author: Nivlek
author_rank: Newbie
timestamp: August 23, 2023, 06:15:18 pm
content: I know that this is an old post , but I have a Fluke 123 with a similar issue . Did you ever find the problem ?
Fluke 12E+ and 114 parts - Page 1
Forum section: electronics / repair

author: negativ3
author_rank: Regular Contributor
timestamp: March 09, 2023, 12:30:27 pm
content: Hey all,I was invited to take a look in my neighbours shed after he'd passed to see if there was anything I could use. Found a couple Fluke DMMs with problems.The 12E+ back door which retains a pair of AA batteries is missing the battery shorting contacts, I assume the batteries leaked and contacts got corroded past the point of return.. Tempted to spot weld a short piece of tabbing direct to AAs, just to get it going again.The 114 is missing its kickstand which is part of the battery door, otherwise works perfectly.Any ideas where I can procure such specific Fluke parts, or is the 12E+ consigned to e-waste? I would prefer the former of course.Thanks in advance.Andy

author: Black Phoenix
author_rank: Super Contributor
timestamp: March 09, 2023, 02:43:57 pm
content: All those parts are available to be bought in China via Taobao.Both the battery terminals as kickstands. From screens to full plastic shells.

author: negativ3
author_rank: Regular Contributor
timestamp: March 09, 2023, 04:18:32 pm
content: Ahh China market. Explains why they don't really appear (especially the 12E+) under my searches.Thanks for the pointer.
FLUKE 1502 repair need FW copy - Page 1
Forum section: electronics / repair

author: gearedbyby
author_rank: Newbie
timestamp: September 21, 2022, 01:49:55 pm
content: i get a fluke 1502, it display garbled characters,i check the manual,the diff between 1502 adn 1502a maybe 1502a use more better reference resistor。i check the power 5v is ok.crystal is ok, if remove crystal or EPROM（AM27C512-150DC）, the display disappear，if remove eeprom 93lc66，always display garbled characters。because MCU and SRAM not easy to replace,so i thought maybe the FW in EPROM is broken, i want to refresh the ROM.but can't find a copy of this model, can someboby (i thought 1502 and 1502a have the same FW and pcb, so which one is ok)read a EPROM FW copy for me.thanks
Fluke 1503 Insulation Tester replacement Transformer T1  - Page 1
Forum section: electronics / repair

author: klim
author_rank: Newbie
timestamp: April 28, 2024, 12:15:01 pm
content: Hi, I want to bring back by Fluke 1503 to life. The original Transformer had a shortage in winding, so i desoldered it from pcb. Now I'm looking for a replacement Transformer.Too bad there are no technical details availible. The PCB device id is: T1. Below some pictures. I hope to get some help, many thanks in advance.

author: jchw4
author_rank: Regular Contributor
timestamp: May 01, 2024, 09:01:20 am
content: Thnk you for the pictures.Are you sure the "short" you observe is a fault? It could be just a common ground.Other Fluke meters have a low voltage transformer here to generate all the needed voltages but all referenced to the ground.
Fluke 1507 insulation tester with battery leakage damage - Page 1
Forum section: electronics / repair

author: Khaveer
author_rank: Contributor
timestamp: November 13, 2020, 06:13:42 pm
content: Hello.I've recently picked up a very cheap and very dead Fluke 1507. Initially the meter was totally dead. There were absolutely no signs of life after turning it on. After disassembling it I've noticed minor signs of battery leakage around the microcontroller. I've neutralised the corrosion using some vinegar and cleaned the board with IPA. After letting it dry for a couple of hours I've tried turning the meter on again and it started giving some signs of life. The LCD is now kinda working. All segments are repeatedly turning on and off, like some sort of a test pattern. I've recorded a slow-mo video of the fault to see what's happening:https://drive.google.com/file/d/1BAP1jEUVatYUXfK5caP5T5A6ZVn15oGH/view?usp=sharing. It appears to be some sort of a test mode but I have no idea what's causing it.I've tried looking for any obvious issues but I couldn't find any. One thing I found interesting is the negative voltage rail powering U14. It is generated by U12 (area marked in red), but then it goes thru R95 which drops it down to -1.2V. Could anyone verify what voltage is supposed to be at TP6? Another thing I noticed it that the range switch contacts do not make contact on top and bottom pads at the same time. I've attached a picture showing the range switch contacts on top and bottom in the same switch position. The bottom contacts are not aligned properly. I'm not sure if it's an issue or if it's designed like that.Update:The issue was caused by corrosion hiding under the microcontroller. Decoldering the micro, cleaning the board and resoldering it solved the issue. Unfortunately the voltage measurements are now offset by +0.3V but it appears that it's still within specification
Fluke 1507 Problem - Page 1
Forum section: electronics / repair

author: Stijn_v
author_rank: Newbie
timestamp: August 26, 2022, 04:27:14 pm
content: My fluke 1507 isolation tester gives a wrong measurement on Voltage. It must be 0.0 V but on the screen is -0.1 . Must i calibrate the meter or is there something broken.

author: Black Phoenix
author_rank: Super Contributor
timestamp: August 27, 2022, 11:10:17 am
content: No need to calibrate. That's normal, residual voltage.If you insert both probes and touch between them the value should go to zero.

author: Stijn_v
author_rank: Newbie
timestamp: August 27, 2022, 01:55:31 pm
content: No, when you touch the leads together it staysin -0.1 voltage.

author: Stijn_v
author_rank: Newbie
timestamp: August 27, 2022, 02:06:33 pm
content: No, when you touch the leads together it staysin -0.1 voltage.

author: retiredcaps
author_rank: Super Contributor
timestamp: August 27, 2022, 07:22:34 pm
content: I used to buy used and abused Fluke meters and one of them, when probes shorted, showed -0.2 ohms My post from 8.5 years ago.See post #2 at"https://www.eevblog.com/forum/repair/multimeter-repair-time-again!-fluke-177-reads-8-ohms/"

author: J-R
author_rank: Super Contributor
timestamp: August 27, 2022, 10:28:50 pm
content: Voltage measurement accuracy specifications for that device are: 50 Hz to 400 Hz ± (% of Rdg + Digits): ±(2% + 3).So best case the device shouldn't be trusted to within 0.3V anyway.Supply some known inputs and see if they are correct?

author: Stijn_v
author_rank: Newbie
timestamp: August 29, 2022, 09:35:55 am
content: Must i clean the PCB? There is nothing dirt on the pcb ?

author: CapLeaker
author_rank: Regular Contributor
timestamp: August 29, 2022, 10:42:59 am
content: Cleaning the board with 99% alcohol is a cheap investment. I’ d do the same thing if it would be mine. retiredcaps fixed his by cleaning the board twice. Hopefully it will fix yours too…I’ve got a Fluke 178 when they came out over 20 years ago. So far so good, never missed a beat and is still within spec.

author: J-R
author_rank: Super Contributor
timestamp: August 29, 2022, 11:15:50 pm
content: There is nothing wrong with it, why "fix" it until it's really broken??
Fluke 1520 - SMD info - Page 1
Forum section: electronics / repair

author: Kris0725pl
author_rank: Newbie
timestamp: October 03, 2024, 04:27:48 pm
content: Hi all. I purchase broken Fluke 1520. I found this site:https://schneiderelectronicsrepair.nl/?p=179I send email to this autor but got reply ....i dont have anymore this fluke.Any help?I cant read smd info near battery plus and minus.This is my pictures:My youtube video with this flukehttps://youtu.be/CLTL3MBzcTY?si=Bgp_cQoS0L-wozQD
Fluke 1550C insulation testet error 6 - Page 1
Forum section: electronics / repair

author: wawinfo
author_rank: Contributor
timestamp: August 27, 2024, 04:41:51 pm
content: Hi friends, I have a fluke 1550c insulation tester for repair, the unit when charging shows error 6, after checking i saw the battery was separated and is faulty, i changed battery and after that tester being ON and the main screen is showing but the error 6 also displayed.Does anyone know about this error or at least guide me through troubleshooting this tester?
Fluke 1587 fc rerpair - Page 1
Forum section: electronics / repair

author: mrcurlyman
author_rank: Newbie
timestamp: June 10, 2025, 12:28:14 am
content: I accidently tested the secondary HV winding on a microwave transformer with my 1587. Im guessing it took a couple thousand volts. it still powers on but shows very low readings. has anyone done this? Im not sure what to check. Is it repairable or did i just fry it. thanks.

author: J-R
author_rank: Super Contributor
timestamp: June 10, 2025, 05:49:49 am
content: Can you open it up and post some high-quality photos of the PCB so we can all have a look? Hopefully something will stand out.

author: Zero_Ego
author_rank: Regular Contributor
timestamp: June 10, 2025, 08:53:08 am
content: From memory they put out somewhere around 50KV and the current can and does kill. I'm sure you know what you are doing. It's just that people try to make art with electricity and did not survive.At such a high current - my guess is it bound to have left a trail of devastation. Sad to say.But nothing is unrepairable given enough time and expense.Hope you find and easy fix though!

author: mrcurlyman
author_rank: Newbie
timestamp: June 10, 2025, 04:26:14 pm
content: I believe your correct about the voltage, as i can confirm from the arc i got to the meter probe. I have been around electricity long enough to know to keep my hands away.
Fluke 1630-2 FC Ground Resistance Meter - Only Reads 0A and OL - Page 1
Forum section: electronics / repair

author: juansuica
author_rank: Newbie
timestamp: February 25, 2025, 04:10:11 pm
content: I’m troubleshooting a Fluke 1630-2 FC Ground Resistance Meter that only shows 0A and OL for resistance. The case is damaged, likely from a drop. PCB voltages check out (battery, +11V, +5V, -5V), and the jaws open/close properly, with the unit detecting their state. Resistance always reads OL. In current mode, it shows 0mA, with occasional random fluctuations. Enabling the BP filter causes current readings to jump randomly in tens of mA, but resistance stays OL.The jaw cables are tricky to trace without desoldering. I’ve identified an excitation coil (2V, 3.3kHz signal when resistance mode is active). Another cable shows a constant 17mV, and some carry 3.3kHz signals (detected with a multimeter in frequency mode). These connect to op-amps. The PCB is complex—likely multi-layer—with components under the display and inside a metal shield I can’t access.I’ve had no luck finding a service manual for this or a similar model. Any insights or resources would be greatly appreciated!