[NTLK] MessagePad 2100 recap/repair

[DXH]

No, that won’t fix the problem. The recap is applicable to the OMP as it has a number of electrolytic capacitors which are susceptible to drying out. The 2x00 has but one electrolytic cap and it is for the backlight circuit.
The yellow caps are tantalum and have a solid construction so - failure possible, but unlikely.

Was it stored with batteries inside? They can leak and corrode the connections. Did you power it with a power supply? Was it a Newton supply or generic? Some generics have a tendency to kill units due to over-voltage/current.

Occam’s razor - try the simple things first like a full reset. Power with fresh batteries or correct PSU. If you have a rechargeable battery pack then perhaps it is toast.

More complicated, there is a fuse inside in the power supply circuit. If the wrong supply is used it can fail. This is a simple fix but it is a tiny SMD component so a tad difficult for the average repair person. It’s labeled F1. If you have a multimeter you could at least see if it is still intact by measuring across it.

If the simple measures don’t work then you will have to ask someone on here with knowledge to take a look at it for you.

PCBman


Sent from my iPad

> On May 20, 2022, at 12:28 PM, Alan Grassia <alan.grassia at gmail.com> wrote:
> 
> Hello Matt and Newton Friends,
> 
> Based on my novice skills in this area, and having repaired my OMP with a recap job, I would say this sounds like a reasonable place to start. 
> 
> Cheers,
> Alan
> 
> -------------------------------
> OMP, MP2000, MP2100, eMate 300
> 
> Website: http://blog.smartphonefanatics.com
> Twitter: https://twitter.com/alanmgrassia
> LinkedIn: https://www.linkedin.com/in/alangrassia
> 
> Sent from my iPhone 13 Pro Max
> 
>> On May 20, 2022, at 11:55 AM, Matt Materniak <netman85am at gmail.com> wrote:
>> 
>> Hi Everyone!
>> 
>> It looks like my MP2100 is starting to bite the dust, powered it on for the
>> first time in 6 months and the screen contrast was almost non-existent and
>> now it won't power on or chime. My first gut instinct is calling to recap
>> the unit due to age, does that sound like it will fix the problem? Is there
>> anything else I should be checking or looking for for a failure like this?
>> 
>> Thanks!
>> Matt
>> ----------------------------------------------------------------------
>> 
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