Monitor recapping and low ESR

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JezC
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Re: Monitor recapping and low ESR

Post by JezC » Mon Oct 29, 2018 11:21 pm

sandord wrote:
Mon Oct 29, 2018 11:11 pm
JezC wrote:
Mon Oct 29, 2018 11:06 pm
Will grab a piccie or two at the weekend if I can & upload it (it's my daughter's birthday so it might not happen until the weekend after unless we wear her out earlier in the day).

Then I can see if it looks anything like yours - thanks for the offer!
Sure thing! The 1084 that's coming in tomorrow might have yet another design. Will post pictures if that's the case.

If there is enough resemblance, I can provide a recap list for two different versions I did (D2 and P1).
Sounds like a plan to me...and when I've sorted that colour monitor I can try and fix a faulty SM124...used to work & then just stopped powering up...so hopefully it's just a simple fault :?

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sandord
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Re: Monitor recapping and low ESR

Post by sandord » Mon Oct 29, 2018 11:27 pm

[quote=JezC post_id=12642 time=1540855288 user_id=83]
Sounds like a plan to me...and when I've sorted that colour monitor I can try and fix a faulty SM124...used to work & then just stopped powering up...so hopefully it's just a simple fault :?
[/quote]

Please find the attached instructions for fixing a dead SM124. As a bonus, your SM124 will be more resilient to tuning. I blew one up when I was a kid by enlarging the picture using internal adjustments. That clearly pushed it over the edge.
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DEAD_MON.TXT
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JezC
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Re: Monitor recapping and low ESR

Post by JezC » Tue Oct 30, 2018 8:31 am

Thank you for that. I will read through that and see if I can manage it.
Got to say how great it is with all the advice being shared by everyone.

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sandord
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Re: Monitor recapping and low ESR

Post by sandord » Thu Nov 08, 2018 3:30 pm

So, I got the next 1084S in. This one's supposedly broken, the previous owner says it just quit working.

If you look at the pictures, you can probably tell the previous owner has a second hobby, next to retro computing :shock: :-o :roll:
Let's say, I can very clearly smell it.

So I ordered a couple of bottles of IPA, planning to give a good wash on the inside. Let's see how well that goes...

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chiark
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Re: Monitor recapping and low ESR

Post by chiark » Fri Feb 22, 2019 4:22 pm

Eww, that's nasty. I think a little nastier than the 1081 that I've just acquired that was shown as powering up, but now does nothing other than blow fuses with extreme efficiency.

I also have a 1084ST that had a panicking power supply: removed the LOPT (flyback) and that stopped the PSU shutting down. Replaced the LOPT and HOT and get... power on, but nothing. No picture. Need to start testing that.

Good luck!

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