Electronics > Repair
Fluke 289 super capacitor
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2N3055:
It is a known problem .

See here :

https://www.eevblog.com/forum/reviews/fluke-287-input-alert-diode-type-replacement/msg683654/#msg683654

https://www.eevblog.com/forum/beginners/my-fluke-289-displays-_warning-leads-connected-incorrectly_-after-the-case-open/msg735239/#msg735239

You are missing IR LED diode. If you lost it you will need to buy new one and solder it in.
Fabry_85:
the Ds2 must be welded like this?

Inviato dal mio FRD-L09 utilizzando Tapatalk

ElecSeb:
That is upside down!!
Fabry_85:

--- Quote from: ElecSeb on February 03, 2019, 02:14:35 pm ---That is upside down!!

--- End quote ---
Ok! thanks.

Inviato dal mio FRD-L09 utilizzando Tapatalk

ElecSeb:
The PCB you show looks like it has been soldered before... No by you I suppose?
Are you sure the meter is still working?

I am sorry for my bluntness, but based on your shown experience you do not seem to have that much experience in electronics...
Are you sure you are capable to make this repair and would it not be wiser to put this one with a correct description on ebay and buy yourself a working new one (calibrated and within spec?)
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