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ZX owners check those CAPS!!!
Posted: Tue Apr 06, 2010 5:57 pm
by Pillow
I just got a ZX in the mail and it is the first one I have seen with leaking caps. After pulling the caps this evening 3 out of the 4 were leaking.
... Kind of F'ed up the power input area with some serious arcing. I need to clean it up and we will see how it turns out. My biggest concern is that one of the power hold down screws snapped off in the board... Too much contamination leaked into it and seized it up.
More to come... Hopefully with some pics.
Posted: Tue Apr 06, 2010 6:00 pm
by Eric D
Are you talking about the gold screws on the brass input terminals?
Posted: Tue Apr 06, 2010 6:05 pm
by Pillow
Yes, exactly.
There is some pitting in the copper/gold plating as well. Again from arcing IMO.
item
Posted: Tue Apr 06, 2010 6:24 pm
by kg1961
sorry man this
is the amp i got from stryker and it came back from pg 1.5-2 years ago
shit it owrked 100% in my friends car running just high pass speaker in a mazda 3
Posted: Tue Apr 06, 2010 6:38 pm
by Pillow
No worries Mike. It was due for caps anyway... This is just the first ZX I have seen leak.
Posted: Tue Apr 06, 2010 6:43 pm
by Eric D
I replaced the caps in two ZX500s, and one ZX450 last week. All of them had at least one cap leaking, and in the case of one of the ZX500s, all the caps were leaking (input caps).
You may end up soldering the terminal. I had to do this on a ZX950 I had years ago. If you end up soldering it, you will need a very good iron to do a good job...
Posted: Wed Apr 07, 2010 6:18 pm
by Pillow
Posted: Wed Apr 07, 2010 6:57 pm
by Eric D
Do you have a Dremel tool, or equivalent? If so, use it with a very small dental drill and slowly grind out the screw. The screws are actually pretty soft (hence the reason they break off so easily).
I think if you can grind most of it out, you will have good threads left to work with.
Posted: Wed Apr 07, 2010 7:12 pm
by Pillow
That is what I hope to do Eric... Results in a day or two
Posted: Wed Apr 07, 2010 7:54 pm
by oldskoolmseriesfan
I dont think I could trust the DOCS so called "SKILLZ" I think hes just talking out his ass
Posted: Thu Apr 08, 2010 7:07 am
by Eric D
In all honesty I am not that proud of the work I did in the above photo. I did that over 6 years ago, and back then I did not know nearly as much about soldering as I do now.
Posted: Thu Apr 08, 2010 8:11 am
by smgreen20
Gotta start somewhere right? Hands down E, you're the best here at it.
No I'm not forgetting about Jason, he does an awsome job to.
Posted: Thu Apr 08, 2010 9:43 am
by Eric D
I think there are 4 or 5 guys here other than me who are as good or better at soldering.
Posted: Thu Apr 08, 2010 9:59 am
by oldskoolmseriesfan
I hate soldering Im sure my 3 year old could do it better than I.
Posted: Thu Apr 08, 2010 12:35 pm
by ttocs
Posted: Sun Apr 11, 2010 1:15 am
by gfunk_nz
try a bit of penetrating oil round the threads of the screw overnight, there is a product called Mouse's Milk, it's the best stuff I have ever used, you can also use a 50/50 mix of kerosene and a light oil like jet engine oil, or probably any air tool oil, that will work through the threads then an easy out might just get the remainder of the screw out nicely.
Posted: Sun Apr 25, 2010 6:53 pm
by Pillow
The ZX450 is all business and rocking in my Burb as of tonight
I had to drill and retap/clean the threads for the screw, no biggie (6-32 tap if anyone cares).
I just did a "good" ZX500 and found that 3 of the 6 caps were starting to leak. Caught it early so no damage/marks at all... And it is now rocking in the Burb as well
In the next few weeks I hope to get the rest of the M50s and ZX500s done as well.
Again CHECK THOSE CAPS!!!
