Sony KD-49X9 F Series Service Manual page 15

1.2 No Power u-com Failure
CU Segment / LCD Model
+3.3V_STBY
G-Board / LD
G-Board
+12V_MAIN
#pin6
Vdd u-com
supply
voltage
BL_ON
#pin7
POWER_ON
#pin10
#pin16
R426
12V_MON
ADC port
GND
#pin11
DC_MON
ADC port
GND
P-on u-com control signal path summary
PGOOD_1
#pin9
P_ON_#1
#pin12
P_ON_#2
#pin13
P_ON_HL
#pin18
OPWRSB
#pin2
ORESETB
#pin14
DC_OFF_DET
#pin3
X_SYSTEM_RST
#pin20
X_LED_MUTE
#pin8
DDC : +1.0V_M2 (IC604)
DDCs : +1.8V_TU (IC405), +1.0V_BE (IC4003)
DDCs : +5V_MAIN (IC402), +3.3V_MAIN (IC403),
+1.5V_BE (IC4001), +1.1V_BE (IC4002)
LDOs : +1.05V_M2_A_1 (IC603), +1.05V_M2_A_2
(IC606),
VCC3IO_EMMC (IC607), +1.8V_BE (IC 4004)
DDC : +12V_LNB (Q408/Q409)
USB VBUS SW (IC3406, IC3407, IC3408)
SOC Muffin 2 (IC1000)
Tuner (TU2802/TU2803)
SOC BE (IC4000)
BM2A
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