[Date Prev][Date Next]   [Thread Prev][Thread Next]   [Date Index][Thread Index][Author Index]

Re: OT: Vortex issue



U32 is actually soldered to the board which is a pain- wish it was in a socket. I need a book to teach me the basics of this like how to test components,etc. I have a small cheap multitester but don't know much else as far as how to use it on installed caps,diodes,etc. and what settings and values should show. Tempted to run to Radio Shack before they close and get a nicer digital one.
C

Not being able to measure on your device, I can't tell too much..
Could be the output opamp U32 (Motorola MC 34072, dual opamp) or the output voltage swing clamping diodes D12/D13 (1N4148 small-signal silicium diodes).

Those are located fairly close to the jacks, and I believe labeled on the PCB close to each component.
IIRC U32 is in a socket, so it's easy replacing it.  I don't know about availability today; it's possible you may need a replacement part.


--
rgds,
van Sinn