Andreas,
I'm kind of new to the 16500/16700 family. What I understand is that HP
used a glue to attach the board spacers that become corrosive over time
and could eat through traces and pc boards.
Other than that It is a good instrument.
Mike
On 9/27/2026 2:53 AM, hupfadekroua via cctalk wrote:
Hi all,
I‘m quite interested in your experience with 16500 Maimframes.
Mine is not very good, since I tried some of them.
Each one died with a defective PSU Board, some died very spectacular.
Since the psu board is very complex as well as there seems to be no schematics available
I gave up on these systems.
I‘d like to give them another try.
Best
Andreas
> Am 26.09.2026 um 21:37 schrieb Adrian Godwin via cctalk
<cctalk(a)classiccmp.org>rg>:
>
> I have some 16500A frames which uses a similar panel. The rotary encoder
> and contrast/brightness controls are a little different but the IR section
> may be the same.
>
>> On Sat, Sep 26, 2026 at 6:06 PM Mike Katz via cctalk
<cctalk(a)classiccmp.org>
>> wrote:
>>
>> Glen,
>>
>> I bought a 16500C on ebay but it was not packed well and the front panel
>> metal frame was broken as well as one of the tabs that holds the pems
>> nuts on the front panel. It is also missing, i think, one of the 4
>> position black IR "directors" that mount on top of the photo
transistors
>> on the curved circuit boards at the bottom of the display.
>>
>> If I have to I can harvest them from my 16500b but I prefer not to ruin
>> a perfectly good unit to repair another.
>>
>> The part numbers that I can find are:
>>
>> MP1 16500-40201 Front Panel
>> MP22 5021-5807 Frame Front
>>
>> I cannot find a parts list for the IR Detector circuit board.
>>
>> I am also still looking for the 80 pin high density cable to connect the
>> 16500B main circuit board to the lan interface board. The part # for the
>> additional cable that I am looking for is 16500-61614.
>>
>> Do you know where I can find either a dead 16500C I can harvest the
>> parts from or know where I can get the parts?
>>
>> Thank you,
>>
>> Mike
>> bitwiz(a)12bitsbest.com
>>
>>
>>
>>> On 9/20/2026 12:44 AM, Glen Slick via cctalk wrote:
>>> On Sat, Sep 19, 2026, 9:33 PM Mike Katz via cctalk<cctalk(a)classiccmp.org
>>>
>>> wrote:
>>>
>>>> The distance is about 4 inches or less I believe. I can measure it.
>>>>
>>> The 80 conductor 16550A cable might be too short. Also, it might be keyed
>>> the wrong way even if it was long enough. The 16550A cable polarization
>> tab
>>> is keyed pin 1 to pin 1, while the 16500B / 16500L/H cable might be
>> reverse
>>> keyed between the two ends. I'd have to pull the lid off of a 16500B to
>>> check.
>>>