Chapter 2 - Service and Troubleshooting
CTV-41 52
Service Test Points
Due to heavy shielding of the BU1 board, voltage and signal test points
are virtually inaccessible. Since all video processing is performed on
this board it is not necessary to view signals. Video issues are resolved
by observation of what appears (if anything) on the LCD screen. The
important test points are located on the power supply boards. Inverter
error test points for the 26/32” models are located on the inverter board.
Inverter drive and error lines for the 40/46” models can be checked on
the power supply board. Figures 2-11 through 2-14 provide illustrations of
the voltage test points of the 3 different power supplies and inverter test
points used in the WAX3 chassis.
To Next Page
Loading...
Need help?
General