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Service Hints - Panasonic TX-28F250A-AUSTRALIA Service Manual

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1.4. X-Radiation
Warning :
1. The potential sources of X-Radiation in TV sets are the EHT
section and the picture tube. /
2. When using a picture tube test rig for service, ensure that the rig
is capable of handling 30 kV without causing X-Radiation. /
Note: It is important to use an accurate periodically calibrated high voltage meter. /
1. Set the brightness to minimum.
2. Measure the High Voltage. The meter reading should indicate 31.0
± 1.0kV. If the meter indication is out of tolerance, immediate
service and correction is required to prevent the possibility of
premature component failure.
3. To prevent the possibility of X-Radiation, it is essential to use the
specified picture tube.
1.5. GP2 Block Diagram

2. Service Hints

2.1. How to move chassis into service position
1. Remove 9 screws.
5

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