Capacior/Fuse Model for LCD Backlight
Masy i know what is the model of Capacitor/Fuse which circled in RED for LCD Backlight?
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Hi @eric27347
Again I can't find free downloads but here's a supplier where you can buy it cheap enough (cheapest I could find anyway) if you can't find a free download.
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Hi Jeyeff
Ok thanks for your advice, appreciate it.
Hi Jayeff,
Any TVM file viewer recommended?
Are you looking at the boardview or the schematic?
Usually schematics are pdf files
Never had to open a TVM so I don't know.
Usually the schematic will tell you what components are in the backlight power path. You just look for the LVDS (or eDP) video cable connector in the schematic to find where the backlight power connects on which pins of the connector and work your way back to the power supply for the backlights.
It may be a fuse or if there isn't one it may be powered directly from a power mosfet.
There is usually backlight power on the video cable connector (LVDS or eDP) "all the time" and it is turned on and off in the LCD panel, by a signal on the backlight enable lead (usually marked as BK_Enable or similar on the schematic)
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i have same problem no backlight motherboard nm-c811 board
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@jtechn looks like you do have the schematics. Have you checked the backlight circuit? what did you find out? Do you have power on pin 1,2 and 3? What voltage does it show?
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@eric27347 I recognize this is an old question but just for those that may still be looking at this. The components in question are as follows:
Reference designator CG8 is a 10µF 6.3V capacitor in a 0402 package
Reference designator CG9 is a 0.1µF 6.3V capacitor in a 0201 package
Reference designator CG10 is a 33PF 50V capacitor in a 0201 package
For your backlight you will need to check pin 1,2, and 3 on your JEDP connector. Always check the voltage since there are certain indicators that can guide you toward a bad circuit, bad WLED driver or even a bad boost circuit.
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Hi @eric27347,
Is this the same laptop as asked in your other question before or a different one?
If the same which is the correct model number?
If a different one see my answer to your other question regarding how to find the schematics
jayeff tarafından
Hi Jayeff
The motherboard is NM-C811
ERIC tarafından