SynScan H.C. burnd out

[esenb]

Hi,
I was careless and created a short circuit in the EQ3 Pro hand controller. Visible U2 and D4 are burned out.
Model SynScan V5 Rev A. From what I read here it is D4 -1N4001. (I am not sure.) How can I find the U2 part code? Can anyone use it and share a photo of this piece?

[esenb]

I found it from another user. Code "LH40 357T W"
It is available as 357T. I am writing it here for information as well.

[Lady Fraktor]

Have you checked here for a new hand controller or board? https://tavcso.hu

[yobbo89]

top digits is the date code (lh40)

it's a photocoupler/optocoupler



https://au.mouser.com/ProductDetail/Lit ... UCwQ%3D%3D

i'll start looking for a diode, i might just pull my controller apart to find the package size

[Gfamily]

If a fix isn't possible (would probably be beyond my skillset), the synscan Wifi module is a more affordable replacement than a new handset.
Comes with additional functionality as well - such as point and track, which makes initial alignment redundant for quick grab and go use where you know your targets.

[yobbo89]

fast recover diode rectifier, hmm maybe. these are at the ic chips , unfortunately both my skywatcher synscan controllers have celectron boards in them ... they just have a fuse at the input and a larger m1 diode with the 357t ..

https://au.mouser.com/ProductDetail/Rec ... ZYRg%3D%3D

[Richard]

Yes as mentioned a new (used) controller from say CN classifieds is a cheap option , not sure how post works in Turkey from US , have been in Istambul
only once lovely , but it was for 2 days only far too short