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If you are missing terminal block screws, these are threaded UNC 6#-32, with a length of 1/4 inch<ref>Example of where to order: https://www.aliexpress.com/item/1005004139480135.html</ref>. This same thread is also used by "harddrive screws". | If you are missing terminal block screws, these are threaded UNC 6#-32, with a length of 1/4 inch<ref>Example of where to order: https://www.aliexpress.com/item/1005004139480135.html</ref>. This same thread is also used by "harddrive screws". | ||
=== Backlight === | |||
The original units come with an EL backlight, some size measurements: | |||
* The laminate, not including the protruding pins is 19mm x 110mm | |||
* The active surface of the El backlight is 16.5mm x 100mm | |||
* The pin pitch is about 4.8mm | |||
* The space available underneath the dispay is about 21mm (top to bottomn) x 1.5mm thickness (and that is without compressing the rubber contacts) | |||
* Some people have found a replacement EL backlight that is of compatible width, but longer length. <ref>https://www.eevblog.com/forum/repair/ldc-backlight-identification-and-repair-for-fluke-phillips-pm-2812/msg5021983/#msg5021983</ref><ref>https://backlight4you.com/Leuchtfolien/Ersatzleuchtfolien/Leuchtfolie-rosa-weiss-19-5mm-x-222mm-laminiert::967.html</ref>, however keep in mind that cutting EL backlights to size will make them more susceptible to moisture ingress, and failure. | |||
* Some people have repurposed an iPhone edge-lit led backlight with success, although they have not documented exactly where to source these backlights. <ref>https://www.eevblog.com/forum/repair/newish-source-for-most-lcds-backlight-repair-reparing-a-fluke-pm2812/</ref> | |||
Latest revision as of 03:54, 24 February 2026
| PM281X | |
|---|---|
| Manufacturer | Philips/Fluke |
| Code name | |
| Release date | |
| Device type | Other |
This article is a stub. You can help Repair Wiki grow by expanding it
This article is about the Philips/Fluke PM2811, PM2812, PM2813 programmable power supplies. They are very modular, and similar to each other differing only in the configuration modules the device comes with.
Guides
Explanatory Guides
Repair Guides
| Affects part | Type | Difficulty | |
|---|---|---|---|
| PM281X: Switching between 110V and 220V | General | 1. Easy |
Create a Guide
Device pictures
Please consider contributing pictures to this section!
PCB pictures
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Reference measurements (also schematics if available)
Please consider contributing pictures to this section!
More Information/External Sources
Filtering Capacitors/Modules to replace
- A common issue with these power supplies is that the compact filtered power entry module often degrades over time[1]. The capacitors inside of it often explode, and leave a nasty smell, and goo around it. The codename of the module is "FN282-6-06" and is still available for purchase. [2]
- The input module PCB has an X2 class 0.68 µF RIFA capacitor, the kind with the semi-transparent case that tends to crack, and allow moisture in. These kinds of capacitors, are recommended to be replaced in old gear. Note that this capacitor is 15mm wide, 31.5mm long, and the pin pitch is about 27.5mm. There's space enough for a couple mm wider or couple mm longer capacitor.
Terminal Block Screws
If you are missing terminal block screws, these are threaded UNC 6#-32, with a length of 1/4 inch[3]. This same thread is also used by "harddrive screws".
Backlight
The original units come with an EL backlight, some size measurements:
- The laminate, not including the protruding pins is 19mm x 110mm
- The active surface of the El backlight is 16.5mm x 100mm
- The pin pitch is about 4.8mm
- The space available underneath the dispay is about 21mm (top to bottomn) x 1.5mm thickness (and that is without compressing the rubber contacts)
- Some people have found a replacement EL backlight that is of compatible width, but longer length. [4][5], however keep in mind that cutting EL backlights to size will make them more susceptible to moisture ingress, and failure.
- Some people have repurposed an iPhone edge-lit led backlight with success, although they have not documented exactly where to source these backlights. [6]
- ↑ The author of this article has seen this module fail on at least 3 devices, and also noticed other people online seeing the same failure: https://youtu.be/owhx7wW-mN8?si=VscQqoiZPaNYLUzT&t=416, https://www.eevblog.com/forum/reviews/phillipsfluke-pm2811-power-source/msg1582627/#msg1582627 At this point it is recommended to replace these on sight, and write the replacement date onto the modules.
- ↑ https://www.tme.eu/ro/en/details/fn282-6-06/iec-60320-connectors/schaffner-te-connectivity/800367-sf/
- ↑ Example of where to order: https://www.aliexpress.com/item/1005004139480135.html
- ↑ https://www.eevblog.com/forum/repair/ldc-backlight-identification-and-repair-for-fluke-phillips-pm-2812/msg5021983/#msg5021983
- ↑ https://backlight4you.com/Leuchtfolien/Ersatzleuchtfolien/Leuchtfolie-rosa-weiss-19-5mm-x-222mm-laminiert::967.html
- ↑ https://www.eevblog.com/forum/repair/newish-source-for-most-lcds-backlight-repair-reparing-a-fluke-pm2812/