Philips FL9.1 Technical Training Manual page 9

The Function (Keyboard) is hard-wired to the IR Sensor board and it to the Junction board.
Only the KEY-IN1 is used for the keyboard. The KEY-IN2 is used in other chassis with a built
in DVD player.
IR Board
Junction Board
Raw DC is supplied to the Inverter board via connector CN602 on the power supply board.
Operating voltages INV+16V, LCD+16, P-ON+3.3V and LCD-6.8V supplies are fed to the
Inverter board via connector CN201.
The Inverter is switched On by the BACKLIGHT-SW voltage. This voltage is generated on
the Digital Main board and routed through the Power Supply board to the Inverter via
connector CN201, pin 5 on the power supply. The voltage from the Digital Main to the Power
Supply can be checked on pin 26 of CN301 on the power supply. This voltage should be
approximately 3 volts.
CN201
CN302
CN301
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