
board. Using a pair of needlenose pliers, straighten all the metal tabs holding the RF
shielding in place. Don’t forget the two that are between the top of the cartridge port and
the metal heat sink at the top of the board.The voltage regulator is located at the top of the
board, immediately above the cartridge port, as shown in Figure 7.50.
2. You’ll first want to test the voltage regulator to see if power is even reaching it and then
check to see what the output voltage is.To do this, plug the 7800 power supply into the
board, and then apply power to the system by pressing the power button located in the
lower-left corner of the board.Then carefully ...