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OldIBMer
Joined: 21 Aug 2009
Posts: 27
Location: USA
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 Posted: Thu Sep 10, 2009 6:58 pm Post subject: Re: Viewsonic N3235W Black Screen - Need some help |
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| J/TECH wrote: | I would like your old inverter board; have one with bad transformer on; can't find supply of board or transformer. Open to offers?
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Send me a PM with your address and an offer. |
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Guest
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| Posted: Tue Jan 26, 2010 8:41 pm Post subject: repaired dac-24t042 |
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| Display flashes black for 1-2 seconds, then returns to black. On inverter board checked fuses marked p 1,2,3 and all where fine, less than 1 ohm. Checked fuse marked n and had high resistance 1.5 MOhm. Replaced and set is serviceable. |
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OldIBMer
Joined: 21 Aug 2009
Posts: 27
Location: USA
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| Posted: Thu Jan 28, 2010 10:32 pm Post subject: Re: repaired dac-24t042 |
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| Anonymous wrote: | | Display flashes black for 1-2 seconds, then returns to black. On inverter board checked fuses marked p 1,2,3 and all where fine, less than 1 ohm. Checked fuse marked n and had high resistance 1.5 MOhm. Replaced and set is serviceable. |
All four components etched as F1,F2,F3, & F4 and marked with P,P,P, & N, on my inverter board meter essentially "open". What should I be looking for to replace them with? And, do you have any idea what might have taken all four out at the same time? Thanks.
Gerald  |
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amerillove
Joined: 29 Jan 2010
Posts: 3
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| Posted: Fri Jan 29, 2010 11:06 am Post subject: Hello |
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| Great post! Well, metered each of the (7) inverter transformers primary & secondary windings; all are the same (on my meter x100 range = ~650 ohms.) |
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Guest
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| Posted: Fri Jan 29, 2010 1:13 pm Post subject: repaired dac-24t042 |
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Without a schematic diagram I can't tell what the fuse values are.
I replaced the f4 fuse with a low value surface mounted fuse that I had kicking around. |
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