Casio TV-570 Viewing Angle Problem

[PortableTV]

Originally Posted by JohnCT

It almost sounds like someone took this apart and got the polarizer sheets installed wrong in front of the LCD module.

It could also be a circuit problem. Most electronics in those days used "fish" caps: small surface mount electrolytics that go bad. We used to change several hundred a week when we did camcorders.

If the TV seems to improve with run time, that could be it. Also, putting it in a warm spot (like near a radiator) and warming it 20 deg above room temp may also improve it. Most thermal issues are cap related.

EDIT: is there also a "contrast" control in addition to the bright? Viewing angle changes dramatically with contrast and brightness with LCD screens even when working as designed.

John

I opened it up - what a nightmare

I found a blown cap on the back of the LCD PCB. I jiggled it with a toothpick and the image cleared up straight-on. Off to Mouser for new caps.

John, there is no contrast control on this TV. It just has "bright" and then a red/green "tint" knob on the bottom.

The image is surprisingly poor and low resolution. I believe this TV was made in 1990 but the screen quality looks like something from 1986.

Another question John - Do you take on repairs for these mini Casio's? I'm burning out