05-10-2009 12:59 PM - edited 05-10-2009 01:17 PM
Recently the sub stopped working. Everything else (sats & control) is fine. I've had these z-2300s just over 2 years - just out of warranty - as usual; I'm none too impressed. Until now I've always given Logitech products high praise, but I don't expect them to have an expected life of just over warranty. Anywho, rant over.
Does anybody have any ideas what I can look for in terms of fixing the sub? I've had the sub out of the enclosure, and the back panel off, but I can't see any obvious loose connections etc. What are the components most likely to fail? Caps? Wire solder connections? What signs should I be looking for?
Furthermore, are there any circuit diagrams available (should it come to tracing the fault from source)? Or does anybody have any advice on a process for debugging faults in speakers (come on Logitech techs )?
Edit: Fuse in sub appears to be fine.
printf( stderr, "Ace\n" );
( For anyone wondering how to disassemble Z-2300s [this will void your warranty]: to get the front grill off, just prise the metal with a knife or something similar, and then you can unscrew the 8 screws & remove the sub. To get the back panel off, unscrew all screws around the edges of the metal pane, leaving those in place which aren't absolutely around the edge, then it's a case of prising the cover off using the heatsink as leverage, as the cover is glued to the back of the enclosure. It may take quite a lot of prising and wriggling, but be careful as the wires connecting the PCB on the back panel to other components in the enclosure are pretty short. You've only got a couple inches to play with.)
05-14-2009 10:38 AM
Even basic help would be highly appreciated: the wires connecting the PCB to sub etc, can I cut these and solder back together later (i.e. that shouldn't degrade speaker quality, right)?