TV diagnosis Basics
Автор: Pirate TV Productions
Загружено: 2025-05-03
Просмотров: 372
0:00 intro and LG tv
0:18 testing mains and fuses
1:05 testing bridge rectifiers, and main capacitor
2:37 testing output diodes and finding standby supply
3:19 testing backlight supply
4:20 measuring outputs to main board
5:28 using USB to verify standby on the main board
5:44 finding LCD supply voltage
6:08 a Samsung with a common power problem
7:39 bad capacitor in 12V circuit
8:04 check the optical audio output for easy signs of intelligence
9:08 checking tcon voltage
8:46 remove the LVDS cable
10:13 USB peripherals that can defeat power on
10:32 Samsung specific tests
10:43 Samsung LVDS cable can prevent startup if the LCD has failed
11:07 Samsung power supply forced power up
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