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kortek ki-2-vo brand chassis repair help - only high voltage
perjmolsen:
Some updates..
New HR8508 fly mounted, chassis still go to x-ray protection :hissy:
Tested the big resistors
The big resistor with the blue wires connected, volt 149 on both sides. Tested resistor 169 ohm, and it is a 170 ohm so that is OK.
The other big resistor with blue and yellow wire, volt 115V on yellow wire, and 145 on blue wire. It is a 300 ohm and test as 300 ohm, so OK.
grantspain:
odd that the chassis would use that flyback, its almost a ms2030 clone chassis
do you have the actual original schematic?
perjmolsen:
--- Quote from: grantspain on January 10, 2020, 05:22:18 pm ---odd that the chassis would use that flyback, its almost a ms2030 clone chassis
do you have the actual original schematic?
--- End quote ---
Hi Grant
No, schematic I have tried to find one but no luck.
If i search the web, I can find this chassis Nanao-MS720L1 it looks just like mine, but neither that I can find any schematic either
http://www.jomac.net.au/wp-content/uploads/2006/02/Kortek_Copy-of-Nanao-MS720L1.jpg
grantspain:
i doubt thats the right flyback
perjmolsen:
Well some positive progress now :applaud:
I have changed nearly all the electrolytic caps (the one with the blue dots changed)
And turned on the power, and picture witout x-ray shutdown - BUT I am unable to get the picture black, it is like the screen volt is to high.
As I remember with the x-ray protection turned off yesterday, the picture where possible to get nearly good, so can it now be my new fly that is causing this issue?