Tom Retson, you wont need a new digitizer. From what you are describing, the digitizer still works, but your LCD does not. the LCD contains the backlight. Angle a light against the LCD and see if you see any outlines at all. You did not tell us how your cleaned the logic board. I strongly suggest 90%+ isopropyl alcohol as well as a soft bush. Clean the logic board and all connectors very carefully. you may have to repeat this step a couple of times. After that, reassemble your phone and re-evaluate. If you still do not see anything, it is possible that you still need a new display assembly.
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==Update ==
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I attached the flow sheet for the LCD trouble shooting as well as the schematic for the connector and the part reference. Hope this helps.
Tom Retson, you wont need a new digitizer. From what you are describing, the digitizer still works, but your LCD does not. the LCD contains the backlight. Angle a light against the LCD and see if you see any outlines at all. You did not tell us how your cleaned the logic board. I strongly suggest 90%+ isopropyl alcohol as well as a soft bush. Clean the logic board and all connectors very carefully. you may have to repeat this step a couple of times. After that, reassemble your phone and re-evaluate. If you still do not see anything, it is possible that you still need a new display assembly.
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==Update ==
+
I attached the flow sheet for the LCD trouble shooting as well as the schematic for the connector and the part reference. Hope this helps.
Tom Retson, you wont need a new digitizer. From what you are describing, the digitizer still works, but your LCD does not. the LCD contains the backlight. Angle a light against the LCD and see if you see any outlines at all. You did not tell us how your cleaned the logic board. I strongly suggest 90%+ isopropyl alcohol as well as a soft bush. Clean the logic board and all connectors very carefully. you may have to repeat this step a couple of times. After that, reassemble your phone and re-evaluate. If you still do not see anything, it is possible that you still need a new display assembly.