Hi All,
Could some of you guys help me with some parts numbers please as I'm getting rather stuck. I've tried looking on Farnell, Mouser etc for replacement OR equivalents AND on the following websites but I'm not having much luck with the SMD markings..
http://www.s-manuals.com/smd http://www.marsport.org.uk/smd/mainframe.htmI'm trying to repair a reasonably new'ish Mastech MS5205 Insulation Tester which I've shorted out by accident. It initially blew a couple of SMD transistors Q20 and it's adjacent transistor (it also vaporized the track beneath the transistor which I have repaired temporarily for now)
The main issue is part numbers though. I could just buy a new unit for about £90 but I thought having a go at a repair on this would be more beneficial to me not being an EE in the diagnostics dept, especially as I don't have schematic either so
![Sad :(](https://www.eevblog.com/forum/Smileys/default/xsad.gif.pagespeed.ic.L3FGyzQrjB.png)
If anyone does have a schematic that would be great
Anyway the parts I'd like to know replacement numbers for if necessary are listed below, as I have most others. I don't mind at all spending £30+ odd quid on bits if needed as I love repairing SMD stuff down to 0402 (depending on accessibility.) I've posted a pic of the board in the hope of some help with replacements/equivalents.
8525 (u3)
8512 (u2)
ED0
J2Y
J3Y
80M (or maybe upside down W08)
C2NJY
A7W16 (the number 16 is written sideways on the transistor after the A7W)
Also how do I identify Diode D1 ?
![](http://img.photobucket.com/albums/v146/orbiter/IMAG0051_zps7171c50a.jpg)
Many Thanks for any assistance guys.