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Old 06-01-2022, 12:43 PM   #1
Rmasters3
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Default 55G310U Toshiba Dead

Can't get anything out of it. Power supply outputs all ) as well. The obvious answer is Power Supply Board unless it needs to be switched on by the Main Board. Suggestions?

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Old 06-01-2022, 01:14 PM   #2
neilc6
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Default Re: 55G310U Toshiba Dead

Power supply typically supplies standby voltage to the main board. When the TV is turned on, processor will send a power supply on to fully turn on ps and backlight on signal. If you have no standby voltage, power supply is suspect. Should be a main AC fuse you can check but fuses will blow due to shorted components.
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Old 06-02-2022, 02:36 AM   #3
Rmasters3
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Default Re: 55G310U Toshiba Dead

PS fuse checked OK, and with no standby voltage, I was assuming a PS problem. Thanks for the confirmation.
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Old 06-02-2022, 09:35 AM   #4
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Default Re: 55G310U Toshiba Dead

What is your voltage across main capacitor?
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