Hi guys, I changed my backlight to a 5g in Samsung but the broken leds burned the thick plastic panel . I give the photo. Do you think if I try to rotate the panel, with the botton on the top I have a good image? Becacause now how u can see, on the light color I sse the leds because of the burned on the plastic diffuser.
Backlight panel diffuser melt by backlight leds broken
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by howardc64Problem
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Channel: Troubleshooting Computer Displays
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Channel: Troubleshooting Computer Displays
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by Comp_ProHello all,
Am trying to figure out this backlight issue with this A1990 Macbook Pro.
Tests performed:
There is no backlight even with a good screen.
Backlight IC is receiving the correct support voltages.
Fuse F8400 ok
Current sense resistor R8400 ok
Backlight IC is receiving 3.3V on enable pin.
Backlight IC receiving voltage from PPBUS_G3H, aprox 12.5V.
Backlight IC receiving 5V from PP5V_G3S
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I2C_BKLT_SCL and I2C_BKLT_SDA both measure... - Loading...
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