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Software Upgrade; Board Locations - Philips FL9.1 Technical Training Manual

Lcd tv chassis for 2009
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Inverter
Keyboard
Side Jack
Power Supply
Digital Main
IR Board
Set Back view
Repair
The FL9.1 chassis is designed for board level repair. To assist with troubleshooting, compo-
nent level function will be discussed.
The Digital Main board has the microprocessor and signal processing circuits. The HDMI and
USB inputs are located on the Digital Main board. The USB port on this chassis is only used
for software upgrade.
The Tuner AV inputs and Audio Amplifier are located on the Power Supply board. The power
supply produces a AL3.3V supply for standby power. When the set is turned On, the supply
produces a 16, 3.3, 3, 7, 5, 9, 13, and 33 volt supplies.
The Inverter Provides the drive voltage for the panel backlights.
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