Re: Fixing Phillips LCD TV 37PF7320A
OK, I look at the SCH, it is not very details, from what I can on the power supply block diagram, it only shows the +24v dc power connection (5 pins), the other 5pins on the inverter are for the ground return, but it does not show the pin 11 and pin 12 which are for dimming and BL_ON controls. What do you see on these two pins?
You will have to trace out these two pins where they go to on the AUX POWER board, they should be routing through this board and go out the main board some how. You should download the service manual for this TV.
This is not going to be an easy task to trace this out.
OK, I look at the SCH, it is not very details, from what I can on the power supply block diagram, it only shows the +24v dc power connection (5 pins), the other 5pins on the inverter are for the ground return, but it does not show the pin 11 and pin 12 which are for dimming and BL_ON controls. What do you see on these two pins?
You will have to trace out these two pins where they go to on the AUX POWER board, they should be routing through this board and go out the main board some how. You should download the service manual for this TV.
This is not going to be an easy task to trace this out.
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