Boss RV-5 Digital Reverb not working

[Brainbender]

Hi!
My RV-5 broke. LED is always on, clean signal is unaffected. I opened it and I saw that one IC is fried and has unreadable markings (which I believe is "JAP J" just like one beside. I removed it in hope if I can get some info about it and then solder a new one. I used Boss PS adapter and I'm really confused what happened?!
Any info or photos would be appreciated!!
Pictures:





2nd side

[slacker]

I asked google for an RV-5 schematic and it found this http://www.stompboxzone.com/forum/viewtopic.php?f=5&t=1625 which might help you. Even if you can't find the same part, now we know what it is someone might be able to suggest an alternative or a work around.

[Brainbender]

Yeah, thank you. Looks like I'm looking for S-8520E33MC-BJS-T2, but I can't find any to buy...
Any ideas?

[rezzyrules1]

CAN YOU LET ME KNOW IF YOU FOUND THAT PART FOR THE RV-5 CAUSE ITS 2018 NOW AND I HAVE THE SAME PROBLEM , HOW DID YOU SOLVE IT?

[Les Turnbull]

Switching Controllers 3.3V Step-Down PWM
Try Mouser .
https://www.mouser.co.uk/ProductDetail/Seiko-Instruments/S-8520E33MC-BJS-T2/?qs=i40xbvP3shky6DUMZNPjCUHEAYpQSbbo

[Prehistoricman]

Or... try something that's in stock!

https://www.digikey.com/product-detail/en/ablic-u-s-a-inc/S-8520F15MC-BNAT2U/1662-2049-1-ND/7228342

[Brainbender]

I've sent it to service and the man said the CPU is fried and the repair would cost same as pedal...