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Electronics Repair (sci.electronics.repair) Discussion of repairing electronic equipment. Topics include requests for assistance, where to obtain servicing information and parts, techniques for diagnosis and repair, and annecdotes about success, failures and problems. |
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iiyama visionmaster pro 452 strange behaviour at power on
Hi My monitor suddenly has a strange behavior when I power it up in cold
situation (only after more then about 5 mins powerdown) . I hear a few times 3 - 7 times a clicking noise with some flashing on the screen (the monitor tries to show the image without succes ) After that the image stabilizes and a few seconds later there is on more click from a relay? Now as long as the monitor remains powered the image is steady and OK. When I let windows shut down the monitor while powered and wake up again there is no problem. Anyove got a suggestion what to dot? The 3 year warrenty expired just 5 weeks ago:-S Bert |
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iiyama visionmaster pro 452 strange behaviour at power on
Some components, most probably a number of capacitors in the power supply
and or scan circuits have become thermo sensitive. You will have to give the monitor out to a service rep, unless you are properly trained and equipped to deal with this. -- Jerry G. ===== "Bert" Mr-Bert.haalmaarweg@ en.dit.ook.lycos.nl wrote in message ... Hi My monitor suddenly has a strange behavior when I power it up in cold situation (only after more then about 5 mins powerdown) . I hear a few times 3 - 7 times a clicking noise with some flashing on the screen (the monitor tries to show the image without succes ) After that the image stabilizes and a few seconds later there is on more click from a relay? Now as long as the monitor remains powered the image is steady and OK. When I let windows shut down the monitor while powered and wake up again there is no problem. Anyove got a suggestion what to dot? The 3 year warrenty expired just 5 weeks ago:-S Bert |
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iiyama visionmaster pro 452 strange behaviour at power on
Hi jerry
The training and skills are not the problem:-) What my first thoughts wgere are some of the supply caps are degredated in operation. I know espescially in PC land there are some prolems also with leaking Elco's like I have seen on my MSI board. Also some search on iiyama and flash on power up revealed there are capacitor problems wit 400 series of their monitors! They always suggest to first replace te primary caps in the supply! Offcoures during heating the filament there is wuite some extra current drawn and with bad caps the supply can become un stable! Just want to know if other people have similar problems and cures:-) Bert "Jerry G." wrote in message ... Some components, most probably a number of capacitors in the power supply and or scan circuits have become thermo sensitive. You will have to give the monitor out to a service rep, unless you are properly trained and equipped to deal with this. -- Jerry G. ===== "Bert" Mr-Bert.haalmaarweg@ en.dit.ook.lycos.nl wrote in message ... Hi My monitor suddenly has a strange behavior when I power it up in cold situation (only after more then about 5 mins powerdown) . I hear a few times 3 - 7 times a clicking noise with some flashing on the screen (the monitor tries to show the image without succes ) After that the image stabilizes and a few seconds later there is on more click from a relay? Now as long as the monitor remains powered the image is steady and OK. When I let windows shut down the monitor while powered and wake up again there is no problem. Anyove got a suggestion what to dot? The 3 year warrenty expired just 5 weeks ago:-S Bert |
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