Electronics > Repair

Teardown : HP 4263B LCR Bridge meter (and repair)

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picburner:
@ RikV

Do you have a device that has failed or do you want to buy a failed device to try to repair it?
Failures in the analog section are usually repairable but if the failure is a custom component in the digital section, as you have already understood, then the problem is serious, solvable only by replacement from a donor instrument.
Also, due to the too synthetic documentation, it would be necessary to have a second working instrument to speed up the discovery of the failed part.
In my 4363B I only replaced some electrolytic capacitors and upgraded to opt. 001 and 002, so I did not do too complicated repairs.

coromonadalix:

--- Quote from: Aheld on December 11, 2024, 05:54:42 pm ---Hi Forum,

I have a HP 4338B Miliohm meter, which looks similar to this HP4263B LCR.
Do you think it would be possible to upgrade the miliohm meter into LCR meter?

Br.
Axel

--- End quote ---

see here the video,        i would say  not possible,  not the same internals

Aheld:
Thank you,
I didn't was aware of this nice video documentation!

Br.
Axel

RikV:
These are fundamentally different instruments. They originate from the same "style" made by HP&Co, meaning they have many metalware and hardware parts in common and thus essentially reduce the BOM of HP's factories and reduce engineering cost. But functionally they are completely different. I guess that -eventually apart from the display/keyboard and power supply- they have nothing in common.

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