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moppo Offline
#1 Posted : Monday, 16 February 2015 1:44:22 AM(UTC)
moppo

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Does anyone know who can fix gts clocks or replace the inner with a quartz unit
gm5735 Offline
#2 Posted : Monday, 16 February 2015 1:57:32 AM(UTC)
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http://www.howardinstruments.com.au/

You might try these guys as a start.
starks Offline
#3 Posted : Monday, 16 February 2015 3:42:36 AM(UTC)
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Theres a link on holdenpaedia in regards to replacing the capacitors. If you can solder its an easy enough job
johnperth Offline
#4 Posted : Monday, 16 February 2015 12:49:56 PM(UTC)
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fixed mine with wd40.
wbute Offline
#5 Posted : Monday, 16 February 2015 6:24:43 PM(UTC)
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Yep capacitors will have dried out. Assuming there isn't a mechanical problem.
starks Offline
#6 Posted : Monday, 16 February 2015 8:10:34 PM(UTC)
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Capacitors although needed are such a weak part of a circuit. Twice now Ive replaced them in my onkyo amplifier. Dont want to replace the unit as even though expensive its deemed one of the best units they ever made. The capacitors only have a rated life of 80 hours in a high heat application and this thing runs hot! Still, a roll of 40 capacitors was like $10 so an hours repair every few years is worth the trouble I think.
gm5735 Offline
#7 Posted : Wednesday, 18 February 2015 4:28:47 AM(UTC)
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80 hours? High quality electrolytic capacitors have typical rated lifetimes of 5,000-10,000 hours at rated voltage, temperature and ripple current. Rated temperature can be from 85 to 125 degrees, depending on the type.
As a rough rule every 10 degrees below rated temperature results in a doubling in expected life, so either you have this amplifier in the oven or there are some serious design issues!

The electrolyte, which insulates the capacitor internally, is typically a light oil which does evaporate with time. The capacitor gradually deteriorates and eventually fails but this is usually the kind of thing that happens over 20 years or more.
starks Offline
#8 Posted : Wednesday, 18 February 2015 5:47:18 AM(UTC)
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Thats what they were rated at 80hrs. Maybe I need to find another make of capacitor if thats the case. Yeah these amps run hot, and I mean hot. Plenty of research online and thats the case with all of them so im going for design floor.
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