LG 55LD650H (CHASSIS:LA05A) Service Manual ▷ View online
Audio block diagram
TUNER
BCM3549
TEA6420
S/W
MC33078
OP-AMP
CS5340
ADC
TPA6011
Rear_AV
Side_AV
Comp
RGB
NTP3100
CS5345-ADC
SIF
IF_N / IF_P
BUF
HDMI
TMDS_RXC_BCM
TEA6420_L_OUT
TEA6420_R_OUT
MC33078_L_OUT
MC33078_R_OUT
CS5340_I2S_DATA_OUT
CS5340_I2S_SCLK_OUT
CS5340_I2S_LRCLK_OUT
CS5340_I2S_SCLK_OUT
CS5340_I2S_LRCLK_OUT
BCM_L_OUT1
BCM_R_OUT1
BCM_R_OUT1
BCM_L_OUT
BCM_R_OUT
BCM_R_OUT
BCM_L_OUT2
BCM_R_OUT2
BCM_R_OUT2
MNT_L_OUT
MNT_R_OUT
MNT_R_OUT
SPEAK_OUT_L-
SPEAK_OUT_L+
SPEAK_OUT_L+
BUF
MUTE2
Audio_MNT_MUTE
Audio_MNT_MUTE
MUTE2
Audio_MNT_MUTE
Audio_MNT_MUTE
MUTE1
Audio_AMP_MUTE
Audio_AMP_MUTE
BCM3553_I2S_DATA_OUT
BCM3553_I2S_SCLK_OUT
BCM3553_I2S_LRCLK_OUT
BCM3553_I2S_SCLK_OUT
BCM3553_I2S_LRCLK_OUT
BCM3553_AUD_MCLK
BCM3553_AUD_MCLK
BCM3553_SPDIF_OUT
LD650H Power Diagram (1) : +3.5V_ST
+3.5V_S
T
T
IC1603
L1600
PTC : +1.2V_BCM_EN
+D_1.2V
L1605
+A_1.2V
290mA
L1201
IC100 : BCM3549 Analog 1.2V
IC100 : BCM3549 Digital 1.2V
IC102 : LGDT3305 Digital 1.2V
L103
281mA
3080mA
3651mA
MP2208DL,4A, 90%
L413
Q405
PTC : +3.3V_BCM_EN
+3.5V
IC1401, IC1402 : UART switch
IC1403 : RS232C TX/RX
IC1700 : RGB EEPROM
IC502 : PTC reset[KIA7027]
IC500 : PTC(MSP430F5419), 1mA
IC501,503, 504 : Level shifter
L1613
IC1605
AZ1117H-1.8TRE1, 1A
+D_1.8V
L1501
L1801
L1500
+D1.8V_VDEC
IC1501 : External VDEC digital 1.8V
44mA
TU1800 : b-lan 1.8V
IC1501 : External VDEC analog 1.8V
180mA
+A1.8V_VDEC
22mA
L300
IC301 : NTP3100L digital 1.8V
L1607
IC1604
AZ1085S-ADJTR/E1, 3A
L1202
+1.8V_DDR
+1.8V_DDR_BCM3549P
1030mA
33mA
IC600,602, IC100 : DDR memory
IC601
BD35331F-E2
DDR_VTT_BCM3549P
DDR0_VREF0/
DDR1_VREF0
DDR1_VREF0
DDR Termination
DDR VREF
L1601
IC1602
SC4215ISTRT, 2A
+2.5V
L1012
L1400
L1405
+A2.5V
970mA
IC100 : BCM3549 analog 2.5V
JK1400 : Ethernet 2.5V
DCDC
enable
Regulator
FET
Bead
Stand-by
100mA
1380mA
280mA
160mA
1030mA
560mA
970mA
770mA
3000mA
LD650H Power Diagram (2) : +3.5V_ST, 24V
+3.5V_S
T
T
DCDC
enable
Regulator
FET
Bead
Stand-by
IC403
CHARGE PUMP,0.5A, 70%
+5V_ST
IC404
PTC : DC_DC_EN
+12V_ST
1000mA
L1814
L500
+5V_ST_bLAN
100mA
P500 : MPI 5V
IC505 : PTC EEPROM
200mA
IC501,503, 504 : Level shifter
PTC pull-up
PTC pull-up
P500 : MPI 12V
L305
+24V_AMP
IC301:Audio PWM AMP
+24V
Q1807
PTC : bLan_POWER_MANAGE
+5V_bLAN
IC1800, IC1803 : analog S/W
L1814
TU1800 : B-lan TUNER
■ Max power supply
- 3.5V : 4.3A
- 12V : 3.1A
- 24V : 1.1A
LD650H Power Diagram (3) : +12V
+12V
DCDC
enable
Regulator
FET
Bead
IC1502 : TEA6425D, Video Switch
L407
IC405
L1600
AS7809DTRE, 1A
+D_9V
L2001
IC2002
AOZ1072AI, 2A
+1.26V_MEMC
L2103
110mA
IC2101 : URSA3, Core 1.2V
+VDDC
L2107
Q405
L406
BCM : PANEL_CTL
L403
+12V_TCON
L700
700mA
P701/P702 : LVDS 12V
L1900
P1900 : FRC_LVDS 12V
IC2202
L2200
TP562110RSAR, 1.5A
+HVDD
P1900/P1901 : HVDD +8V
400mA
L503
Q508
JK500 : RJP
L409
IC400
AOZ1073AIL,2A
+3.3V
Connector to +3.3V
L2002
IC2003
AOZ1072AI, 2A
+3.3V_MEMC
IC2101 : URSA3, Core 3.3V
P501 : MPI 12V
1000mA
L400
KIA78R05F, 1A
IC401
+5V_TU
L100
TU100 : TDVJ-H031F
280mA
L401
IC402
MP1593DN, 3A
Power : +3.5V
+5V_DEVICE
L414
+5V_EXT
L311
IC300 : 8Ohm speaker AMP
340mA
IC1700: RGB EEPROM (3mA)
IC1701: inverter (200mA)
IC1701: inverter (200mA)
IC1400
MIC2009YM, current limiter
L1403
480mA
L809
IC801
SC4519STRT, 3A
XMARK_1.8V
P1401: USB
IC800 : Pro:idiom (water mark option)
USRA
option
option
USRA
option
option
Water
mark
option
mark
option
600mA
200mA
820mA
410mA
140mA
700mA
100mA
1550mA
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