So this is rather unexpected. This sub is literally only 50 hours used, and brand new pretty much. I got it from a friend who never set his system up.
Tonight I unplugged it, and plugged it back in in a different outlet, and the power died on it. I checked the fuse, and the fuse is good. I know it should have been powered down before unplugging but lets not go there.
I took it out of the sub, and its not an easy fix by the looks of it, since there is glue on a bunch of the parts. I can get the power supply out however. I could really use some help because I am at a loss with this.
Last Edit: Jul 4, 2014 9:00:57 GMT -5 by jeremy: Repaired Defective circuit
None of the schematics I have are like this. I need to search some more to see what I can find. I looked at the pictures and can not give a direct location to search other then poking around as I'm sure you have already. Let me do some more checking.
MT, I think I found the problem on the amp power supply. Its one of the little sub boards, the one next to the 2 big black capacitors.
The board says: Indigo Canada 660045-1. I looked this up on google and there was some Norway dude that had the same board with the same issue on a Klipsch subwoofer. I'll post pics in a bit, but one of the surface mount resistors is so badly burned it popped off and its unreadable visualy so I have no idea what value it is. It reads open on the ohm scale as well. And theres also another resistor on the board that reads 50-some K ohms and I don't know for sure if that's correct either.
Okay I have 2 pics of the board, one front, one back, the back has nothing on it thankfully. I don't have the resistor that popped off anymore it disappeared overnight, but it read open and the writing on it was completely burnt off so it wouldn't have done any good anyway.
Excellent, I think I will modify the resistors and use standard 1/4 watt flameproofs, like I said the sub is barely used so I can only assume that damage was from unplugging and plugging it in right away.
MT, thank you for providing those part values. The subwoofer is once again working! I used 2 121,000 ohm 1/4 watt flameproof resistors instead of the surface mount types, since the foils were ruined anyway, and these should handle a little more oomph than the originals.
Anyone that has a bash amplifier that wont power on, and finds bad resistors such as I did, make sure you use safety type resistors so you do not damage the unit in the event the repair fails in the future.
It's also a good idea to POWER OFF the sub BEFORE DISCONNECTING THE POWER CORD. I never would have thought this to be necessary, but I wouldn't risk doing it ever again. Had this issue been more serious, the subwoofer would likely not have been repairable.
jbmeyer13: Wolfy's Marquee isn't working? Did you spill a pint on it and short the MB?
Apr 25, 2019 8:32:28 GMT -5
wolfman: Always the same sarkasm Kurt that's why I never checked in until now. I knew you wouldn't give me a cheerful answer so let you hang for a while. Removed the last part you probably are a decent guy Eye to Eye.
Apr 19, 2019 18:55:30 GMT -5
jaws55: want to make sure of value.
Apr 16, 2019 16:46:43 GMT -5
jaws55: Working on Pioneer VSX822K, need help finding value of ZD403, think its a 4.3 volt zener? Just won't to make sure, "no service manual"
Apr 16, 2019 16:45:26 GMT -5
stridsvognen: Wolfman, its768% better thanyour Marquee for sure. As it can actually display a image.
Apr 14, 2019 13:16:49 GMT -5
wolfman: So how's the black level on that thing? When the screen is supposed to go pitch black do you perceive it as genuinely black? Like the opening of CARS where it goes on and off pitch black. Or Prometheus with stars against a pitch black space.. or any Sci-Fi
Apr 12, 2019 15:18:06 GMT -5