- Thread starter nem
- Start date
Sp33dFr34k
Champion
We just recapped @PascalP SUN PSU 400-5443, the values are a little bit different for his. Voltage for C11, C13, C15 and C16 are different (lower). The location of the hidden cap is C26. Also it has 3 2200uF 10V caps and 1 2200uF 16V cap like the 400-5443-02 revision.
400-5443 | | | | |
Capacitor | | Diameter | Qty | Location |
| | | | |
2.2uF | 50V | 5mm | 1 | C26 |
10uF | 50V | 5mm | 1 | C3 |
22uF | 35V | 5mm | 3 | C11, C13, C15 |
47uF | 25V | 5mm | 1 | C16 |
1000uF | 16V | 10mm | 1 | C41 |
1200uF | 200V | 25mm | 1 | C10 |
1500uF | 10V | 10mm | 1 | C32 |
2200uF | 10V | 10mm | 3 | C33, C34, C35 |
2200uF | 16V | 10mm | 1 | C40 |
Was a fun night, the Aoyue desolder station proved its value again 
Also while we where at it we replaced the PSU fan with a Noctua NF-A8-ULN and it is dead silent now, even on 12v without the additional adapter to lower the RPM's even further.
Highly recommended!
Also while we where at it we replaced the PSU fan with a Noctua NF-A8-ULN and it is dead silent now, even on 12v without the additional adapter to lower the RPM's even further.
Highly recommended!
Last edited:
MoppelTheWhale
Grand Master
so far i haven't done much to my sun PSU (i really should do that recap some time...) but i did replace the fan fan for a noctua - changeing the fans for anything arcade in a home environment is such an upgrade since i simply don't run the volume i would need to drown out these original fans....
chacal231077
Grand Master
Hi! 
Does anyone know the value of the 2 Trimmer potentiometers to adjust +5v and +3.3V I would like to change them with stronger potentiometers and with an adjustment Shaft.
An idea ?
Does anyone know the value of the 2 Trimmer potentiometers to adjust +5v and +3.3V I would like to change them with stronger potentiometers and with an adjustment Shaft.
An idea ?
On a 400-5397-01, both trimmers are 500 ohm. Pin spacing 5mm x 2.5mm, center leg at the back. Like this one here:
https://www.digikey.com/en/products/detail/bourns-inc/3306K-1-501/84791
https://www.digikey.com/en/products/detail/bourns-inc/3306K-1-501/84791
chacal231077
Grand Master
Thank you nem
which model do you suggest with an included adjustment rod ?
which model do you suggest with an included adjustment rod ?
Thanks for posting all this very helpful, especially the cap map. I just rebuilt and repaired a 400-5397-01 which seems to be the most common version. It was missing +5v after the recap turned out to be a bad resistor by the fan plug a 4.7k that had rusted in half. After replacing the resistor I wasn't able to adjust the 5v and it was too high, this was a bad pot. Both voltage control pots are 5mm 500 ohms. Finally I replaced the fan with a ARCTIC F8-80 mm which is cheap and also a perfect replacement much quieter than the original, you will have to splice in the old power plug though.
