twolazy
Veteran Member
Its also how a DTSN/DSN screen looks when contrast is at full minimum.
I discovered after a number of tests that the LCD occasionally displays normal but unstable.Yes, that issue is indicative of no signal being sent to the actual pixels in the screen. This could mean that the LCD driver board has an issue, the computer isn’t starting a proper display output, or it’s missing a voltage that it needs.
The maximum voltage to the screen is only 5V(the thick black wire is regarded as the power supply's negative terminal.), though I'm not sure if I measured the right line.That screen looks similar to an early Powerbook screen. Check to see if you have high voltage to the screen, I believe it's either 12, 25 or 50 volts. If that voltage source is missing, the screen won't work. IIRC, the voltage is present on the ribbon cable going to the screen.
The maximum voltage to the screen is only 5V(the thick black wire is regarded as the power supply's negative terminal.), though I'm not sure if I measured the right line.
Is 5V normal ?