Panasonic TC-14Z88AQ Service Manual

receiver should be repaired and rechecked before it is returnedtothe customer.Fig. 1,1.4. X-RadiationWarning:The potential sources of X-Radiation in TV set are the EHT section and the picture tube. Whenusing a picture tube test jig for service, ensure that jig is capable of handling 26.0kV withoutcausing X-Radiation.Note: It is important to use an accurate periodically calibrated high voltage meter.1. Set the brightness to minimum.2. Use the remocon to get into Service Mode.3. Measure the EHT. The meter reading should indicate 24.5±-1.5kV.If the meter indication is out of tolerance, immediate service andcorrection is required to prevent the possibility of prematurecomponent failure.4. To prevent the possibility X-Radiation, it is essential to use thespecified picture tube, if service replacement becomes necessary.1.5. GP3 Chassis Block Diagram2. Service Hints2.1. Service Position for E-Board1. Remove the back cover.2. Stand the TV set as shown in Fig. 2.3. Remove the A-Board from the TV set by pulling the main board