DOWNLOAD LG 50PZ750-UG (CHASSIS:PU12A) Service Manual ↓ Size: 12.92 MB | Pages: 75 in PDF or view online for FREE

Model
50PZ750-UG (CHASSIS:PU12A)
Pages
75
Size
12.92 MB
Type
PDF
Document
Service Manual
Brand
Device
TV / Plasma
File
50pz750-ug-chassis-pu12a.pdf
Date
PREV: LG 50PZ750S-ZA / 50PZ755S-ZA (CHASSIS:PD12C) Service Manual

LG 50PZ750-UG (CHASSIS:PU12A) Service Manual ▷ View online

THE    SYMBOL MARK OF THIS SCHEMETIC DIAGRAM INCORPORATES
SPECIAL FEATURES IMPORTANT FOR PROTECTION FROM X-RADIATION.
FILRE AND ELECTRICAL SHOCK HAZARDS, WHEN SERVICING IF IS 
ESSENTIAL THAT ONLY MANUFATURES SPECFIED PARTS BE USED FOR
THE CRITICAL COMPONENTS IN THE    SYMBOL MARK OF THE SCHEMETIC.
BCM35230
LVDS
15
31
LVDS
T
H
E
R
M
A
L
THE    SYMBOL MARK OF THIS SCHEMETIC DIAGRAM INCORPORATES
SPECIAL FEATURES IMPORTANT FOR PROTECTION FROM X-RADIATION.
FILRE AND ELECTRICAL SHOCK HAZARDS, WHEN SERVICING IF IS 
ESSENTIAL THAT ONLY MANUFATURES SPECFIED PARTS BE USED FOR
THE CRITICAL COMPONENTS IN THE    SYMBOL MARK OF THE SCHEMETIC.
AUDIO[STM]
L1604
MLB-201209-0120P-N2
0LCML00003B
+17V_AMP
P_17V
R1603
2.2
Q1600
2SC3052
OPT
E
B
C
R1612
0
OPT
C1621
0.22uF
50V
C1612
0.1uF
50V
AMP_MUTE
C1613
68uF
35V
R1604
2K
R1610
2K
R1613
2K
R1601
10K
OPT
R1611
0
C1611
0.1uF 50V
AUD_MASTER_CLK
SPK_R-
C1604
0.1uF
50V
C1605
0.1uF
50V
C1618
0.22uF
50V
C1609
0.1uF 50V
AUD_SCK
R1602
0
SPK_R+
C1608
1uF
25V
AUD_LRCH
SDA3_3.3V
C1601
4700pF
50V
SPK_R-
C1616
330pF
50V
R1609
0
C1617
0.22uF
50V
C1606
0.1uF
50V
C1615
330pF
50V
R1616
100
1/16W
1%
C1614
68uF
35V
OPT
R1614
100
1/16W
1%
SPK_L+
C1620
0.22uF
50V
AMP_RESET_N
R1619
20
C1619
0.22uF
50V
SPK_L-
C1607
0.1uF
50V
AC_DET
C1610
1uF
25V
SPK_L-
C1626
1000pF
50V
SPK_R+
SCL3_3.3V
SPK_L+
C1624
1000pF
50V
P1600
WAFER-ANGLE
1
2
3
4
C1600
0.1uF
16V
C1623
1000pF
50V
R1617
0
R1615
10K
C1602
680pF
50V
C1625
1000pF
50V
C1622
0.22uF
50V
C1603
0.1uF
50V
R1600
10K
OPT
AUD_LRCK
R1618
20
+17V_AMP
L1600
10.0uH
L1601
10.0uH
L1603
10.0uH
L1602
10.0uH
0.1uF
C1628
50V
0.1uF
C1627
50V
+3.3V_Normal
0.1uF
C1629
50V
L1605
MLB-201209-0120P-N2
+3.3V_AMP
+3.3V_AMP
+3.3V_AMP
+3.3V_AMP
+3.3V_AMP
R1608
100
R1605
100
R1606
100
R1607
100
IC1600
STA368BWG
26
GND_PLL
27
XTI
28
BICKI
29
LRCKI
30
SDI
31
RESET
32
INT_LINE
33
SDA
34
SCL
35
GND_DIG_2
36
VDD_DIG_2
17
OUT3B/FFX3B
3
TEST_MODE
6
OUT2B
16
CONFIG
15
VDD
14
GND_REG
13
OUT1A
12
GND1
11
VCC1
10
OUT1B
9
OUT2A
8
VCC2
7
GND2
4
VSS
5
VCC_REG
2
SA
21
VDD_DIG_1
1
GND_SUB
20
TWARN/OUT4A
19
EAPD/OUT4B
18
OUT3A/FFX3A
23
PWRDN
24
VDD_PLL
25
FILTER_PLL
22
GND_DIG_1
3
7
[EP]GND
10uF
C1630
16V
AUDIO
6      10
MSD3368EV Platform
Close-by
Close-by
Close-by
Close-by
Near-by AMP
THE    SYMBOL MARK OF THIS SCHEMETIC DIAGRAM INCORPORATES
SPECIAL FEATURES IMPORTANT FOR PROTECTION FROM X-RADIATION.
FILRE AND ELECTRICAL SHOCK HAZARDS, WHEN SERVICING IF IS 
ESSENTIAL THAT ONLY MANUFATURES SPECFIED PARTS BE USED FOR
THE CRITICAL COMPONENTS IN THE    SYMBOL MARK OF THE SCHEMETIC.
R2120
100K
OPT
R2113
1K
OPT
Q2102
ISA1530AC1
BR
E
B
C
L2101
BLM18PG121SN1D
BR
SCL0_3.3V
CHB_TS_CLK
C2105
0.1uF
16V
C2102
18pF
50V
OPT
C2125
0.1uF
16V
KOR
R2106
0
KOR
R2105
0
BR
CHB_CVBS
C2131
0.1uF
16V
KOR
SDA0_3.3V
C2118
18pF
50V
OPT
L2103
CIC21J501NE
R2112
1K
OPT
R2141
0
OPT
Q2103
2SC3052
BR
E
B
C
C2144
0.1uF
16V
R2139
1K
OPT
C2129
100pF
50V
RF_SWITCH_CTL
R2104
0
KOR
SCL1_3.3V
C2126
0.1uF
16V
KOR
+5V_TU
C2115
4.7uF
10V
KOR
R2137
0
+5V_TU
C2103
4.7uF
10V
RF_SWITCH_CTL_2
+3.3V_TU
C2101
0.1uF
16V
+3.3V_TU
C2114
0.01uF
50V
BR
C2124
4.7uF
10V
KOR
IF_P
R2118
2.2K
BR
R2133
4.7K
R2127
10K
BR
R2136
0
OPT
IF_N
C2112
4.7uF
10V
C2128
4.7uF
10V
KOR
R2138
82
R2107
100K
OPT
R2134
470
C2113
0.1uF
16V
C2111
0.1uF
16V
OPT
SDA1_3.3V
C2104
18pF
50V
OPT
TU_RESET
+5V_TU
+3.3V_Normal
+3.3V_TU
CHB_TS_SYNC
C2122
18pF
50V
OPT
C2123
0.1uF
16V
C2141
22uF
16V
IF_AGC
C2120
0.1uF
16V
KOR
R2140
1K
OPT
+5V_TU
R2129
10K
BR
R2128
100K
OPT
TU_SIF
+1.26V_TU
C2149
0.1uF
16V
CHB_TS_DATA
CHB_TS_VAL
RF_BOOSTER_CTL
TU_CVBS
TU_RESET_SUB
C2117
4.7uF
10V
KOR
R2117
100
+5V_TU
R2102
0
R2101
0
R2121
100
KOR
R2116
200
KOR
R2114
200
KOR
C2130
0.1uF
16V
OPT
C2107
1200pF
50V
C2108
4.7uF
C2137
0.1uF
C2138
22uF
16V
L2100
+3.3V_S_TU
+3.3V_S_TU
+3.3V_S_TU
+3.3V_M_TU
+3.3V_DE
D2100
SAM2333
A2[RD]
C
A1[GN]
R2159
1K
+1.8V_M_TU
C2150
0.1uF
16V
R2160
1K
R2115
0
KOR
R2124
0
KOR
R2119
0
KOR
R2123
0
KOR
R2125
0
KOR
R2122
0
KOR
Q2104
MMBT3906(NXP) 
E
B
C
Q2105
MMBT3906(NXP) 
E
B
C
C2109
22pF
50V
OPT
C2110
22pF
50V
OPT
Q2101
MMBT3906(NXP) 
KOR
E
B
C
C2119
0.1uF
KOR
C2162
10uF
10V
+3.3V_M_TU
L2102
BLM18PG121SN1D
KOR
C2167
0.1uF
KOR
L2106
BLM18PG121SN1D
L2105
BLM18PG121SN1D
KOR
+3.3V_S_TU
C2163
10uF
10V
KOR
C2169
0.1uF
KOR
C2168
0.1uF
+3.3V_DE
C2161
10uF
10V
KOR
+1.8V_M_TU
L2108
120-ohm
KOR
BLM18PG121SN1D
C2159
10uF
10V
KOR
C2160
10uF
10V
KOR
C2152
0.1uF
KOR
+1.8V_S_TU
C2166
0.1uF
KOR
L2104
120-ohm
KOR
BLM18PG121SN1D
C2165
0.1uF
KOR
C2178
2.2uF
16V
22uF
C2181
L2114
BLM18PG121SN1D
C2180
2.2uF
16V
C2179
0.1uF
50V
C2182
22uF
10V
+1.26V_TU
+3.3V_TU
R2155
0
KOR
+1.8V_S_TU
C2140
0.1uF
16V
R2142
220
1/8W
R2143
220
1/8W
TUNER_IF_P
R2135
0
OPT
R2126
0
ISDB_IF_AGC
IF_AGC
IF_P
R2100
0
IF_P_MAIN
R2103
0
IF_AGC_MAIN
R2111
0
OPT
TUNER_IF_N
IF_N
R2110
0
OPT
IF_N_MAIN
R2131
0
KOR
R2144
0
KOR
L2112
120-ohm
L2110
120-ohm
KOR
R2156
33
KOR
R2130
33
KOR
R2132
33
KOR
R2146
33
KOR
R2108
0
R2109
0
R2147
0
R2148
0
R2145
47uF
16V
KOR
C2116
47uF
16V
C2106
47uF
16V
IC2102
AZ1117BH-1.8TRE1
KOR
2
OUT
3
IN
1
ADJ/GND
R2158
220
R2167
4.7
TU2103
UDA55AL
US
14
+3.3V
13
+1.2V
5
AS
12
GND
11
VIDEO
2
NC_2
10
NC_3
4
NC[RF_AGC]
1
NC_1
17
DIF_1
9
SIF
8
NC(IF_TP)
3
+B[+5V]
16
IF_AGC_CNTL
7
SDA
6
SCL
15
RESET
18
DIF_2
19
SHIELD
IC2103
AZ1117BH-ADJTRE1
1
ADJ/GND
2
OUTPUT
3
INPUT
TU2101
TDTR-T036F
BR
14
+B3[3.3V]
13
+B2[1.2V]
5
NC_2
12
GND
11
VIDEO
2
BST_CTL
10
NC_4
4
NC_1[RF_AGC]
1
RF_S/W_CTL
17
DIF_1[N]
9
SIF
8
NC_3
3
+B1[5V]
16
IF/AGC
7
SDAT
6
SCLT
15
RESET
18
DIF_2[P]
19
SHIELD
TU2102
TDSB-H001F 
KOR
1
SW_CTL1[NC]
2
SW_CTL2[NC]
3
SW_5V
4
S_3.3V
5
S_1.8V
6
TU_SCL
7
TU_SDA
8
M_1.8V
9
M_SIF
10
M_3.3V
11
M_CVBS
12
GND_1
13
SD_1.2V
14
SD_3.3V
15
TU_RESET
16
M_IF_AGC
17
M_DIF[N]
18
M_DIF[P]
19
SD_ERROR
20
SD_SYNC
21
SD_VALID
22
SD_MCL
23
SD_D0
24
NC
25
GND_2
26
GND_3
27
GND_4
28
GND_5
29
GND_6
30
GND_7
31
SD_2.5V[OPT]
37
SHIELD
32
SD_RESET
33
SIF/NC
34
S_CVBS
35
SD_SCL
36
SD_SDA
close to TUNER
close to TUNER
close to TUNER
close to TUNER
H/NIM & CHB_H/NIM (KOR/USA/Brazil)
Close to Tuner
BCM35230
TUNER DUAL
21
31
Close to Tuner
Close to the tuner
R1
VOUT = VREF *(1+R2/R1)
R2
CLOSE TO TUNER PIN
PIN 25~30 MUST BE SEPARATED TUNER GND
CLOSE TO PIN 25
CLOSE TO PIN 29
THE    SYMBOL MARK OF THIS SCHEMETIC DIAGRAM INCORPORATES
SPECIAL FEATURES IMPORTANT FOR PROTECTION FROM X-RADIATION.
FILRE AND ELECTRICAL SHOCK HAZARDS, WHEN SERVICING IF IS 
ESSENTIAL THAT ONLY MANUFATURES SPECFIED PARTS BE USED FOR
THE CRITICAL COMPONENTS IN THE    SYMBOL MARK OF THE SCHEMETIC.
TW9910_DATA[2]
TW9910_DATA[5]
TW9910_DATA[2]
TW9910_DATA[3]
TW9910_DATA[7]
TW9910_DATA[1]
TW9910_DATA[1]
TW9910_DATA[5]
TW9910_DATA[7]
TW9910_DATA[4]
TW9910_DATA[0]
TW9910_DATA[3]
TW9910_DATA[0]
TW9910_DATA[4]
TW9910_DATA[6]
TW9910_DATA[6]
C2730
0.1uF
KOR
L2701
BLM18PG121SN1D
KOR
C2729
0.1uF
KOR
C2720
0.1uF
16V
KOR
C2727
10uF
10V
KOR
C2724
0.1uF
16V
KOR
C2725
0.1uF
16V
KOR
L2702
BLM18PG121SN1D
KOR
C2726
0.1uF
16V
KOR
C2721
10uF
10V
KOR
+1.8V_CHB
C2722
10uF
10V
KOR
+3.3V_Normal
+3.3V_CHB
+3.3V_CHB
C2728
10uF
10V
KOR
R2722
0
KOR
R2723
0
KOR
C2709
0.1uF
C2705
0.1uF
CHB_RESET
AR2700
22
CHB_TS_VAL
R2712
100
C2706
0.1uF
C2717
30pF
C2732
0.1uF
+1.8V_ADC
SDA1_3.3V
R2709
2.7K
R2711
100
CHB_TS_CLK
+1.8V_ADC
SDA1_3.3V
CHBO_TS_CLK
SCL1_3.3V
R2701
0
C2718
0.1uF
R2707
1M
R2710
12
TW9910_CLK
R2702
100
C2719
0.1uF
R2704
100
R2713
1M
IC2701
LG1140
EAN60750501
1
VDDIO_1
2
D1_DATA4
3
D1_DATA3
4
D1_DATA2
5
VSSIO_1
6
D1_CLK
7
D1_DATA1
8
VDDCORE_1
9
VSSCORE_1
10
D1_DATA0
11
CI0_CLK
12
CI0_DATA
13
CI0_VALID
14
CI0_SOP
15
VDDIO_2
16
CI1_DATA
17
CI1_VAILD
18
CI1_CLK
19
CI1_SOP
20
SDA0
21
SCL0
22
VDDCORE_2
23
SCK
24
SS
25
VSSIO_2
26
MISO
27
MOSI
28
SPI_MODE[0]
29
VDDIO_3
30
SPI_MODE[1]
31
CTL2/FLAGC
32
VCC_4
33
PA0/INT0#
34
PA1/INT1#
35
VDDCORE_3
36
VSSCORE_2
37
PA4/FIFOADR0
38
TSVO0_CLK
39
VSSIO_3
40
TSVO0_SOP
41
TSVO0_DATA
42
IRQ_CHB_N
43
SPLL_AVSS
44
SPLL_AVDD
45
VDDIO_XTAL
46
XTAL27I
47
XTAL27O
48
VDDCORE_4
49
VSSCORE_3
50
TMOD
51
EXT_RESET_N
52
TRST
53
TCK
54
D1_DATA7
55
D1_DATA6
56
D1_DATA5
X2700
27MHz
C2704
0.1uF
R2703
100
C2714
30pF
C2713
0.1uF
C2703
0.1uF
C2711
0.1uF
C2715
0.1uF
TW9910_CLK
CHB_TS_SYNC
+3.3V_CHB
X2701
27MHz
CHBO_TS_SERIAL
+3.3V_Normal
C2710
0.1uF
AR2701
22
C2702
0.1uF
R2714
22
C2708
27pF
CHBO_TS_SYNC
C2700
0.1uF
+3.3V_ADC
+1.8V_CHB
IC2700
TW9910DANB2-GR 
0IPRP00630E
1
VDDE_1
2
SCLK
3
SDAT
4
PDN
5
RSTB
6
TMODE
7
NC_1
8
AVD_1
9
YMUX3
10
YMUX2
11
YGND
12
YMUX1
13
YMUX0
14
AVS_1
15
CIN0
16
AVD_2
17
AVS_2
18
NC_2
19
VSS_1
20
VS
21
HS
22
MPOUT
23
CLKX2
24
VSSE_1
25
VDDE_2
26
VD[15]
27
VD[14]
28
VD[13]
29
VD[12]
30
VD[11]
31
NC_3
32
VDD
33
VD[10]
34
VD[9]
35
VD[8]
36
VD[7]
37
VD[6]
38
VD[5]
39
VD[4]
40
VD[3]
41
VD[2]
42
VSS_2
43
NC_4
44
VD[1]
45
VD[0]/SIAD0
46
VSSE_2
47
XTI
48
XTO
TW9910_RESET
CHB_TS_DATA
C2707
27pF
R2700
2.7K
CHBO_TS_VAL_ERR
C2701
0.1uF
TW9910_DATA[0-7]
SCL1_3.3V
C2712
0.1uF
R2708
100
TW9910_DATA[0-7]
+3.3V_Normal
C2731
0.1uF
R2705
4.7K
R2706
0
C2716
0.1uF
+3.3V_ADC
CHB_CVBS
+1.8V_ADC
+3.3V_ADC
C2723
47uF
16V
KOR
IC2702
AZ1117BH-1.8TRE1
KOR
2
OUT
3
IN
1
ADJ/GND
POWER for CHB
BCM35230
GCHB
27
31
CHANNEL BROWSER
TS Output
0x88
CLOSE TO SOC
CLOSE TO SOC
0xF2
CHB TS Input
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