Edited by Mariaeehhh, 11 June 2009 - 06:25 AM.
Rebuilding stereo, need some1 handy with circuit boards!
Posted 11 June 2009 - 06:23 AM
Posted 11 June 2009 - 10:05 PM
...First, where did find your information (so I can also look for some)? Did you Google the model number or something? Was there anything you found that included a schematic diagram of the set (which would be the absolutely most valuable information you could find; even though you might not be able to make the least bit of sense out of it, it would help me greatly in trying to help you)?
...Next, what is Q401? That is, what is it supposed to do in the set (if your source of information said anything about that)? And what was the original type number on it? If it is some type of voltage regulator (which I'm beginning to suspect) you're probably not going to be able to replace it with just any NPN silicon transistor and have it work. They tend to be somewhat critical in that kind of application (which is why the NTE382 was specified for it). Also, there can be other components in that regulator circuit (especially a zener diode) that may have failed, so even if you do replace the transistor, it still won't work.
...Also, did Q401 have any kind of heat sink on it? It is common to see some discoloration on a printed circuit board around a component that runs hot (and sometimes they do; that's why they have heat sinks on them)...
...And finally, use a reasonable amount of care when soldering on a circuit board, especially if it is not your area of expertise. It is not hard to damage one from too much soldering...I've done it myself a few times, even after years of experience...
...also, this really isn't the right place for this topic, as it has nothing to do with building/upgrading computers...
...educated guess, but perhaps 'Off-Topic' or 'Geek Talk' is probably a better place for it...
Edited by ZedU54, 11 June 2009 - 10:13 PM.
0 user(s) are reading this topic
0 members, 0 guests, 0 anonymous users