Philips 55PFL4909 - [Type B]

9-6
IC3101
(MAIN MICRO CONTROLLER)
DIGITAL MAIN CBA UNIT
XOUT XIN
X3101 24MHz OSC
TO VIDEO/AUDIO BLOCK DIAGRAM
AMP-MUTE
AMP-MUTE COMP-DET HP-DET
HP-DET COMP-DET
VGA-SCL
VGA-SCL
VGA-SDA
VGA-SDA
123 124
53
117
63 64 99
116
54
CN3009
USB(+) USB(-)
USB(+) USB(-)
USB JACK
PROTECT3
P-ON+3.3V
AL+3.3V
Q3105
Q3106
Q3103
P-ON-H2
CPU-RESET
BACKLIGHT-SW
BACKLIGHT-ADJ
SPI-SCL
SPI-SDA
SCL SDA
6 5
(MEMORY)
133 104 101 110 122
59 58
TU-SCL TU-SDA
SCL
SDA
4 3
TU3901 (TUNER UNIT)
RESET
IC3009, Q3104
IC3006
114 112
REMOTE
120
KEY-IN1
128
LED1
Q3501, Q3502
LED DRIVE
100
CN3101
130
LIGHT
Q3010
BUFFER
TO LED BACKLIGHT DRIVE BLOCK DIAGRAM
TO POWER SUPPLY BLOCK DIAGRAM
RESET
P-ON-H2
PROTECT3
BACKLIGHT-SW
BACKLIGHT-ADJ
POWER SUPPLY CBA
CN501 CN501
P-ON-H218 6 RESET20 4 PROTECT321 3 BACKLIGHT-SW
19 5
BACKLIGHT-ADJ
17 7
CN3602 CN3602
KEY-IN146 REMOTE55 LED164 LIGHT73
CN4051
KEY SWITCH
IR SENSOR CBA UNIT
FUNCTION CBA UNIT
REMOTE
SENSOR
RS4051
AL+3.3V
CN4001
D4051 POWER
KEY-IN122
CN4052
LIGHT
SENSOR
IC4051
PL14.26BBLS
1. System Control Block Diagram
[TYPE B]