Hello all,
I've inherited a non-working Vizio 500I-B1 TV that someone else has tried to fix. When I opened it, the top of the IC9301 chip had blown off. I ordered a few more and replaced it, but haven't made really any other progress.
The part number on the power supply board is 715G6100-P05-003-002H.
I don't get any readings on the standby connector for the 5, 12, or 24v rails.
This other post with a similar looking IC9301 chip said to make sure that the 'fusible resistor 9301' wasn't bad as well.
I've found a JR9301 (what does JR mean in this instance?), which is what I assume that poster was talking about. When measured, it has almost no resistance across it but I'm not sure if it should when the board is powered off since at least one other component labeled "JR" also didn't measure any resistance across it. Should this measure resistance at all times?
Any help is much appreciated. Thank you!
I've inherited a non-working Vizio 500I-B1 TV that someone else has tried to fix. When I opened it, the top of the IC9301 chip had blown off. I ordered a few more and replaced it, but haven't made really any other progress.
The part number on the power supply board is 715G6100-P05-003-002H.
I don't get any readings on the standby connector for the 5, 12, or 24v rails.
This other post with a similar looking IC9301 chip said to make sure that the 'fusible resistor 9301' wasn't bad as well.
I've found a JR9301 (what does JR mean in this instance?), which is what I assume that poster was talking about. When measured, it has almost no resistance across it but I'm not sure if it should when the board is powered off since at least one other component labeled "JR" also didn't measure any resistance across it. Should this measure resistance at all times?
Any help is much appreciated. Thank you!
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