Sound is fine, picture is grainy and very dark hard to make out any picture
It is not maybe, it is nearly 100% sure that the ZSUS board has failed and needs to be replaced.
When YSUS fails you typically get two possible outcomes: dark screen or flashing screen.
That's if the TV powers on at all.
In some cases it may short and of the fuse doesn't blow then the TV will refuse to power on from there on as the power board will be detecting the short and shut down.
When ZSUS fails you may get the same or, if the TV powers on, you'd typically get very very dark and grainy image.
Sometimes you may also get completely dark screen. That makes it hard to distinguish from a bad YSUS board and you end up having to rely on heat sinks temperature after 5-10 minutes of work and/or blown fuses (when each sustain has its own fuses).
See our site for more help on that.
www.coppelltvrepair.com
Maybe z board bad need replaced
560 views
Usually answered in minutes!
×