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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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Hitachi Rear Projection Color Alignment
Hi everyone,
I have a 15 year old Hitachi rear projection that I can no longer align to my satisfaction, particularly the red gun. It is showing rather severe pin-cusioning on all colors and some of the front-access color alignment knobs to correct it are, after many years of adjusting, now at their extremes. Before I call a service professional, might there be other places inside the unit to make futher adjustment (or some relatively simple component replacements that I could make). I am just average with a soldering iron. Thanks, Bryan (drop the X if you e-mail me) |
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Hitachi Rear Projection Color Alignment
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Hitachi Rear Projection Color Alignment
wrote in message ... Hi everyone, I have a 15 year old Hitachi rear projection that I can no longer align to my satisfaction, particularly the red gun. It is showing rather severe pin-cusioning on all colors and some of the front-access color alignment knobs to correct it are, after many years of adjusting, now at their extremes. Before I call a service professional, might there be other places inside the unit to make futher adjustment (or some relatively simple component replacements that I could make). I am just average with a soldering iron. Thanks, Bryan (drop the X if you e-mail me) You probably have some failing capacitors, nothing you can adjust out. |
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Hitachi Rear Projection Color Alignment
This is not an adjustment. There are most likely many failing capacitors
from age and heat. The service man can troubleshoot your set to week them out and change them. It is also possible to have other types of components be weak in a set of this age. I would also consider that the tubes may be soft as well. One suggestion would be to shop for a new set rather than sink money in to something this old! -- Greetings, Jerry Greenberg GLG Technologies GLG ========================================= WebPage http://www.zoom-one.com Electronics http://www.zoom-one.com/electron.htm ========================================= wrote in message ... Hi everyone, I have a 15 year old Hitachi rear projection that I can no longer align to my satisfaction, particularly the red gun. It is showing rather severe pin-cusioning on all colors and some of the front-access color alignment knobs to correct it are, after many years of adjusting, now at their extremes. Before I call a service professional, might there be other places inside the unit to make futher adjustment (or some relatively simple component replacements that I could make). I am just average with a soldering iron. Thanks, Bryan (drop the X if you e-mail me) |
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