akira PTV-50H08, Service Manual

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Model No.: PTV-50H08
Version: 1.0
Adjustment of High Voltage
Adjustment Procedure
1. Power off the TV set, pull the high voltage cable of the blue tube out of the high voltage distribution
box and put it aside, with its pin away from the TV set core.
2. Connect the ground wire of the high voltage meter to the ground of the green tube, and insert the
probe into the high voltage distribution box with a good touch.
3. Power up the TV set, and regulate the high voltage potentiometer RH17 to get a voltage of 30.2 ±
0.2kV indicated on the high voltage meter.
4. Power off and remove the probe and the ground wire of the high voltage meter.
5. Insert the high voltage cable of the blue tube back into the high voltage distribution box and make
sure to be well inserted and sealed.
6. Drop 0.1gram of silica gel 708 onto RH17. Try not to change the value of the potentiometer.
7. Power up and switch on the TV set and check if there is any abnormity.