Customer reported sound with no picture.
Suspected from description of fault Ysus display board at fault.
With this model buffer chips built in to Ysus.
Xsus built into power board.
Mainboard with built in logik.
Total number of board therefore been kept down to 3.
All voltages test as correct on panel sticker but absolutely no picture or brightness from the screen or flash of screen when first switched on.
There is a sound however coming from behind the screen i can liken it to the noise some CRT tvs would produce when displaying a high contrast scene. The mainboard has green led flashing 1blink then 3 seconds off and repeating. Does anybody know whether this is the sign of normal operation as i have no service manual?
Because all voltages are reading good but still no screen activity of any kind thoroughly checked the screen for damage or any damaged burnt pixels.
There is small chip about the size of a pinhead on the screen barely discernible its difficult to see whether this has compromised the seal of front glass layer of screen.
Its difficult to believe but could this be the reason?
I dont have the service manual and neither can i find one from usual sources.
Any advice from anybody in the know appreciated.
Suspected from description of fault Ysus display board at fault.
With this model buffer chips built in to Ysus.
Xsus built into power board.
Mainboard with built in logik.
Total number of board therefore been kept down to 3.
All voltages test as correct on panel sticker but absolutely no picture or brightness from the screen or flash of screen when first switched on.
There is a sound however coming from behind the screen i can liken it to the noise some CRT tvs would produce when displaying a high contrast scene. The mainboard has green led flashing 1blink then 3 seconds off and repeating. Does anybody know whether this is the sign of normal operation as i have no service manual?
Because all voltages are reading good but still no screen activity of any kind thoroughly checked the screen for damage or any damaged burnt pixels.
There is small chip about the size of a pinhead on the screen barely discernible its difficult to see whether this has compromised the seal of front glass layer of screen.
Its difficult to believe but could this be the reason?
I dont have the service manual and neither can i find one from usual sources.
Any advice from anybody in the know appreciated.
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