The Sinclair QL Forum

My D14 QL with Gold Card and ICE rom while doing heavy mathematic calculation stops giving signal to Philips monitor via composite cable

After reoboot while the orange yellow light is on pressing F1 the microdrive does not respond. I remove Ice rom and Gold Card and the same behaviour
No signal no boot the orange led on . What is the problem?

Thanks
Michael

At a guess, the monitor has blown the 8301 or 8302 - can you try it on a TV output just to see what image you are getting?

Don't forget that some QLs have the 68008 chip removed for the Gold Card

RWAP wrote:At a guess, the monitor has blown the 8301 or 8302 - can you try it on a TV output just to see what image you are getting?

If the monitor is connected via composite video, there is no direct connection to the 8301. He could try connecting the monitor to the monochrome signal to rule out a defect 1377 (PAL mixer).

Jan.