This board came in with display not working. LCD would power on for a split second with no backlight, then turn off. Diode measurements of LVDS were normal compared to working board. Voltage measurements seemed good as well except pins 26 and 27 seemed off. Was getting .640V on pin 26 and 1.1V on pin 27. Seeing as these pins go to MUX I tried reflowing. When there was no change I then decided to try replacing it. Usually no biggie... Only problem with this is I cant find my stencil for u9600. So I tried replacing it with residual solder left on chip. This took a few tries. Now the computer still turns on and chimes but Im not getting 3.3V to the LCD anymore. I have 3.3V on pin 1 of R9600 but only .937 on pin 2. So PP3V3_S0_GMUX_R isnt present for U9600. No GPU_VCORE. Im guessing somethings not soldered correctly and I will have to wait to either find my stencil or new one comes in. I have one these successfully before without a stencil, not sure what happened this time. Just wanted to run this by you in the chance that it could be something else.
Known working LCD
.445 in Diode on pins 2&3 of connector.
Thanks for the help.
Known working LCD
.445 in Diode on pins 2&3 of connector.
Thanks for the help.
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