TH-65C300K/TH-65C300M/TH-65C300T
14
6.2.
Abnormal display
• The method of maintain single source (such as TV, AV etc) abnormal display: Firstly, check the relative channel circuit's
component whether have obviously short and virtual jointing. It is need to use forehead method to deal with the covert reason.
It is need to check Tuner's outputs for TV source abnormal display. Because of Main IC's high degree of integration, all of the
video signals are transmitted to the back end after processed by main IC. All of the sources’ abnormal display may caused by the
main IC's abnormal run. So it is need to judge the problem is caused by the main IC or fore-end circuits. You can do like this: Put
the good machine's TV/AV signal into the bad machine's Main IC ,and put the bad machine's TV/AV signal into the good
machine's Main IC. If the problem follows the action, the problem is caused by fore-end circuits. If the problem not follows the
action, the problem is caused by the Main IC or the periphery circuits.
Summary of Contents for TH-65C300K
Page 17: ...TH 65C300K TH 65C300M TH 65C300T 17 3 Remove the back cover ...
Page 19: ...TH 65C300K TH 65C300M TH 65C300T 19 9 Block Diagram ...
Page 21: ...TH 65C300K TH 65C300M TH 65C300T 21 11 Schematic Diagram ...
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Page 37: ...TH 65C300K TH 65C300M TH 65C300T 37 3 Assemble the middle polyfoams ...
Page 38: ...TH 65C300K TH 65C300M TH 65C300T 38 4 Assemble the top polyfoams ...
