Re: Bakon 950D "Extra Crispy" mod (19->24 Volt)
Yep, the full bridge rectifier is kaput
Daijoubu
Member
Last Activity: 02-09-2023, 12:47 PM
Joined: 03-15-2007
Location:
-
Re: Bakon 950D "Extra Crispy" mod (19->24 Volt)
120V and yes, but sadly the PSU is now dead lol.
They miswired the hot and neutral on the plug, so the switch was only cutting off the neutral.. I had it plugged in while working on it (to ground the tip), the controller was powered by another PSU and was planning to try replacing R10 with 100k but then I touched it and it shorted it to ground and it took some traces and D4 with it, I tried to bodge wire the missing tracks but no go, it's blowing the fuse now and there's a short somewhere.
...Leave a comment:
-
Re: Bakon 950D "Extra Crispy" mod (19->24 Volt)
Just to lower the overall heat inside the enclosure lol
I'm running into the problem where it shuts off after a while and I have to wait for the capacitor to discharge before I can turn it back on, is that the OVP kicking in? Should I try to lower R11? Or an issue with the optocoupler? It might have done that even before I did the 23V mod.
I have been powering the iron/controller board with an external 24V supply and it works fine (with the same MP2315 buck converter)....Leave a comment:
-
Re: Bakon 950D "Extra Crispy" mod (19->24 Volt)
It's what was feeding the 7805, at least according to the schematic.
The MP2315 appears to be a good modern IC, went into protection mode at 40V and died at 45V, so there's plenty headroom haha
[url]https://www.youtube.com/watch?v=4iAgaBzpOCE&t=230s[/url]Re: Bakon 950D "Extra Crispy" mod (1... IC, went into...Last edited by Daijoubu; 10-17-2022, 11:30 AM.Leave a comment:
-
Re: Bakon 950D "Extra Crispy" mod (19->24 Volt)
I swapped the 7805 for a switcher, it's an OSKJ board based on the MP2315 (max 24V lol)
The caps I have are Rubycon ZLH 25V, hope they don't blow up, I'm gonna order the FS-A eeufs1v102L as spares
I had some 20k 0805 SMD resistors so I used those
R11 swapped for 20k
R24 20k parallel (found out I had some 362 afterwards, oh well)
Measured 23V output.
To fit the board underneath, I had to trim out the bottom wall mounting keyhole flush
Converter have...Last edited by Daijoubu; 10-17-2022, 09:47 AM.Leave a comment:
-
Re: Bakon 950D "Extra Crispy" mod (19->24 Volt)
First thing I did was to replace the caps, I had some spare ones from previous recapping job, wasn't planning on getting SMD resistors, I just placed 2 orders with Digikey but your mod looks so neat haha that I may end up spending another $100 for free shipping, could use some extra PSUs...wife is going to kill me
What should I be looking for the Y class cap?
What about the 7805? Have you done anything to it?
I think i'm gonna swap it for a small switcher and get rid of...Last edited by Daijoubu; 10-13-2022, 05:48 PM.Leave a comment:
-
Re: Bakon 950D "Extra Crispy" mod (19->24 Volt)
Dead thread revival, plan on doing this mod myself
R11, either replace with 20k or put 100k in parallel (21.25k)
R24, going to put 20k in parallel to get 3.6k ~23V/62W output
The 2.7 (2-3ohm) is for the R1 shunt, to reduce it down to 0.2-0.24V
Someone said to also swap R19 to 1k as to not kill the LED inside the TL431 optocoupler
Use Google Translate and look at the comments below
[url]https://mysku.club/blog/china-stores/40868.html[/url]
...Leave a comment:
-
Re: Fortron FSP-ATX-400PNF
Has no PFC too (I'm in Canada)
...Leave a comment:
-
Re: Power supply build quality pictorial
Deer 250W PSU I had, from my very first computer (Celeron 466), lasted 6 years before giving up, went through many upgrades (P3 667, P3 933, TNT2, GF2MX, GF4MX, 13.6GB, 120GB) you can see the left over from a cap that blew
Was a el-cheapo $30 case freebie, back then I didn't know the plague of generics PSUs until all my friends came over me for PSU replacement
Deer 250W with CapXons, I had another one, different/newer revision, that lasted much less with leaking fake Rubycons
...Last edited by Daijoubu; 03-19-2007, 09:20 PM.Leave a comment:
-
Re: how long should I trust an L&C?
My Deer 250W lasted 6 years before one small cap poped
Leave a comment:
-
Re: How does Active PFC Vs Passive PFC affect performance
It doesn't, nor is it more efficient (less actually), it's good from the point of view of your electricity company if I understand correctlyLeave a comment:
-
Re: Fortron FSP-ATX-400PNF
Mine have OSTs for the big ones and the ball bearing version of the Yate Loon fan (D12BH-12)Leave a comment:
No activity results to display
Leave a comment: