Plasma X- and Y-drive confusion

May 03, 2007 0 Replies

Looking in the service manual for ViewSonic VPW-505, 50-inch plasma TV, these PCB descriptions are listed in the parts list:



X-center-bottom X-center-top X-left-bottom X-left-top X-right-bottom X-right-top Y-drv-bottom Y-drv-top



These descriptions seem to me to be wrong. Last time I cracked open a trigonometry book, X was horizontal axis, Y was vertical.



The screen on this particular unit has problems (vertical bars) in the upper middle section which would indicate "center-top". But that is a "Y" control function, not "X".



Shouldn't the PCB descriptions be transposed re. "X" and "Y"? Or do I have my alphabet all mixed up...?



Haven't yet torn into the TV, but I'd like to identify which board is which function (and check availabilities) before removing "screw 1".



Thanks,


DaveC me@bogusdomain.net This is an invalid return address Please reply in the news group

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