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02-10-16, 07:17 AM | #1 | |
Newbie!
Join Date: Sep 2016
Location: Italy
Posts: 8
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urquattro Dashboard Repair
Hi, i try to repair my dashboard (green) , I have a problem with power unit .
The big problem is the IC in the middle of the photo , becouse i can not read wich type is. Is totally unreadable. someone know wich is? thanks |
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01-11-16, 08:38 AM | #2 |
Newbie!
Join Date: Sep 2016
Location: Italy
Posts: 8
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Updeta status:
i can not discover what is this IC , when i try to power the unit it seems to absorbe much power , so i decide to remove (new) final stage ... some time try to oscillate some time no . i think to try to replace all capacitor . All active components (tr and diode are good) |
01-11-16, 10:33 PM | #3 |
Grown up member
Classic Audi Club Member
Join Date: Aug 2009
Location: Cheshire
Posts: 872
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30 year electronics, not sure anyone can guide you on this. What do you mean when u say IC?
rgds Steve
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Lots of Audi 100 C1 saloons (1973-77) Audi Coupe S (1972) Audi WR Turbo (1987) NSU RO 80 1975 (look it up!) Vauxhall Cavalier Mk1 2000 GL 1979 Vauxhall Cavalier Mk1 1900 GL Coupe 1978 Vauxhall Viva HB 1967 (45HP beast!) |
01-11-16, 11:33 PM | #4 | |
Grown up member
Join Date: Mar 2011
Location: Newton Mearns, Glasgow
Posts: 177
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Quote:
If someone had a circuit diagram of this, it would likely show up on that what it is, the fact its 30 yrs old may just help here! |
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02-11-16, 08:04 AM | #5 |
Newbie!
Join Date: Sep 2016
Location: Italy
Posts: 8
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Thanks to all,
http://audifans.com/mirror/www.isham..._digidash.html at the moment is the best indication that i discover , the output voltage to test, so if is not possible repair the unit a possible solution is rebuild new one . The IC (integrated circuit ) that not have signature may be a microprocessor (a pic for example) or another logical port. if someone have a circuit diagram is great! (sorry for my English) |
07-01-17, 08:00 AM | #6 |
Newbie!
Join Date: Sep 2016
Location: Italy
Posts: 8
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Happy New Year everyone!
One little step to resolve... Becouse i don't know what is the IC.. i hope the clock was generated in analogic mode so i change all capacitor and the oscillator start up !! I have now right voltage but the display dont turn on... |
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