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The STB5V from pin7 of connector P2 is applied to the Power IC(IC8202, 5290) for
supplying power to the Main CPU (IC8000) on the A board. The IC8202 converts the STB5V
to STB1.5V and IC5290 converts the STB5V to STB3.3V. These voltages energize and
prepare the microprocessor (CPU) for program execution. The STB3.3V is also applied to the
remote control receiver and the power LED on the K board through connector A10B/K10.
When the Power Switch on, the key3 signal is grounded. (#1)
The IC8000 lights on the RED LED and is ready to power on the TV by receiving the Power
switch on, Remote on, Viera Link and so on. This is a standby state.
When the power on command from the power switch, the remote control and so on is
provided to IC8000, IC8000 first outputs the “TV_SUB_ON” command. The “TV_SUB_ON”
command is provided to power board via pin 13 of connector P2.
2
< from to : A board >
1
38
Start up Operation 1-5
TH- ##JX800*, 900W (Android TV)
Содержание TH-40JX700
Страница 2: ...Revision History Version Issued Revised date Revised content Ver 1 0 7th Jun 2021 First version 2 ...
Страница 4: ...1 Lineup and Function Comparison 4 ...
Страница 10: ...2 Function 10 ...
Страница 18: ...3 Board Layout 18 ...
Страница 23: ...23 4 Signal Flow and Troubleshoot of Picture Problem ...
Страница 31: ...31 5 Start up Operation ...
Страница 54: ...54 6 SOS Protection Circuit and Troubleshoot of Power Problem ...