End of the line for this guy. Clean and lubbed the mechanism, replaced the belt and still no go? Likely a failure of the harness. The micro looses communication with the arm and Aborts.
Narrowing down the cause of the snow and weak picture. Looking more like AGC problems. Also touchup on sound and replacing the infamous AFC diode pack in the horizontal output.
final services and inspections prior to reassembly are key to reliable repairs. We are almost ready to put this back together!
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https://www.youtube.com/watch?v=hU82XbxRHQk
WARNING:The heavy disassembly of this unit is not for the faint of heart or newbie. Take your time, do it right, and you'll be pleased!
This video deals with the disassembly to pin and resolder the 4 channel selector board in the qrx 8001, 9001, 888, and 999 models.
Hope it's helpful. More videos on these quads as I get them in for service
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https://www.youtube.com/watch?v=f8oYVnkZcGU
The brightness limiter problem was caused by a defect in the trippler, not putting out proper voltage to feed the brightness limiter circuit. Replacing the trippler fixed this and gave me nice sharp focus. crimp and deox the duramodule pins, do all the setups and she looks great!
Now I just need to get a better camera. The picture you see here is nothing compared to what its like in person.
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https://www.youtube.com/watch?v=OuQhijcxsJU
14" box fans are rare here. was lucky to even snag this one albeit beat.
let's go down the rabbit hole.
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https://www.youtube.com/watch?v=4FNLq6xereI