Retroman839
Senior Member
Just picked up this desmontar front cart and Pgm ..
Both non workers .
Demon front boots to green screen full of hundreds of u charecters ,
Pgm boots to garbled diffrent depending on diffrent cart só it’s trying ..
Disabled demon front and
All the A103j x6
Have some corroded legs ?
Underside
Checked all legs have continuity to adjacent legs with traces running to them .
Assuming corrosion on legs
New resistors on way any way .
I tested them in circuit
Meter set to 20ohms
Black on pin1
Then each resister in turn .
One was all pins around 9
One all pins around 8
One array was all pins around 17 except last pin is 6 ? Not sure if that’s wrong ..
Next I will verify roms
Both non workers .
Demon front boots to green screen full of hundreds of u charecters ,
Pgm boots to garbled diffrent depending on diffrent cart só it’s trying ..
Disabled demon front and
All the A103j x6
Have some corroded legs ?
Underside
Checked all legs have continuity to adjacent legs with traces running to them .
Assuming corrosion on legs
New resistors on way any way .
I tested them in circuit
Meter set to 20ohms
Black on pin1
Then each resister in turn .
One was all pins around 9
One all pins around 8
One array was all pins around 17 except last pin is 6 ? Not sure if that’s wrong ..
Next I will verify roms
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