LG 24MT45V, Service Manual

Page: 25 / 31

THE SYMBOL MARK OF THIS SCHEMETIC DIAGRAM INCORPORATES
SPECIAL FEATURES IMPORTANT FOR PROTECTION FROM X-RADIATION.
FIRE AND ELECTRICAL SHOCK HAZARDS, WHEN SERVICING IF IS
ESSENTIAL THAT ONLY MANUFACTURES SPECIFIED PARTS BE USED FOR
THE CRITICAL COMPONENTS IN THE SYMBOL MARK OF THE SCHEMETIC.
2013/05/23
TUNER_EU_ERRC
26
MA55
FE_TS_DATA[4]
FE_TS_DATA[5]
FE_TS_DATA[3]
FE_TS_DATA[6]
FE_TS_DATA[2]
FE_TS_DATA[7]
FE_TS_DATA[1]
FE_TS_DATA[0]
+3.3V_TU
C2617
0.1uF
16V
CHINA
C2607
100pF
50V
C2611
100pF
50V
R2611
1K
FE_TS_VAL_ERR
FE_TS_VAL
+3.3V_TU
Q2601
MMBT3906(NXP)
CHINA
E
B
C
R2609
1K
R2615 0
OPT C2616
20pF
50V
R2608
(Apply)T2_CHINA
33
+3.3V_LNA
TU_SCL
TU_GND_B
R2614
4.7K
CHINA
IF_AGC_MAIN
C2620
0.1uF
16V
IF_P_MSTAR
DEMOD_SCL
C2632
1000pF
630V
OPT
R2607
(Apply)T2_CHINA
33
C2612
20pF
50V
R2601 22
FE_TS_VAL
C2624
22uF
10V
C2610
100pF
50V
R2618
0
OPT
FE_TS_ERR
+3.3V_S2_DE
DEMOD_SDA
+3.3V_TU
R2629
0
LNB_OUT
R2631
1
L2603
UBW2012-121F
L2600
UBW2012-121F
+3.3V_S2_DE
R2620
220
1%
CHINA
+3.3V_TU
C2623
0.1uF
16V
C2601
0.1uF
16V
R2624
22K
1%
+1.2V_DEMOD
R2619
220
1%
CHINA
C2622
22uF
10V
FE_TS_CLK
R2606
0
AGC_EU
C2627
0.1uF
16V
C2603
20pF
50V
TU_SIF
IF_N_MSTAR
R2600
10
C2604
20pF
50V
FE_TS_DATA[0-7]
TU_SDA
C2613
0.1uF
16V
+3.3V_LNA
+3.3V_TU
R2605
10
T2
L2601
BLM18PG121SN1D
+3.3V_Normal
+1.2V_DEMOD
C2600
100pF
50V
C2615
20pF
50V
C2621
0.1uF
16V
DEMOD_RESET
LNB_TX
C2614
0.1uF
16V
FE_TS_SYNC
+3.3V_TU
C2602
0.1uF
16V
Q2600
MMBT3906(NXP)
CHINA
E
B
C
+3.3V_TU
R2604
10
T2
R2621
3.3K
R2617
82
CHINA
C2629
0.1uF
16V
C2609
20pF
50V
C2631
10uF
10V
R2603 22
C2625
10uF
10V
C2628
0.1uF
16V
C2619
22uF
10V
C2608
0.1uF
16V
C2606
0.1uF
16V
TU_CVBS
R2616
470
CHINA
AR2601 0
T2
AR2600 0
T2
AR2602 0
T2
C2626
47uF
6.3V
OPT
AR2602-*1 47
CHINA
AR2600-*1 47
CHINA
AR2601-*1 47
CHINA
R2602
0
T2
R2623
12K
1%
C2618
1uF
10V
IC2600
AP7361-Y-13
3
ADJ/NC
2
GND
4
IN
1
EN
5
OUT
TU2600
TDJM-G101D
EU_TUNER(LNB)
1
B1[+3.3V]
2
NC_1
3
AIF_AGC
4
SCL_RF
5
SDA_RF
6
AIF[P]
7
AIF[N]
8
NC_2
9
NC_3
10
NC_4
11
B2[+3.3V]
12
ERROR
13
GND_1
14
MCLK
15
SYNC
16
VALID
17
D0
18
D1
19
D2
20
D3
21
D4
22
D5
23
D6
24
D7
25
RESET_DEMOD
26
B3[+3.3V]
27
SCL_DEMOD
28
B4[+1.1V]
29
F22_OUTPUT
30
SDA_DEMOD
31
LNB
47
47
32
GND
B1
B1
A1
A1
TU_GND_A
TU_GND_A
TU_GND_B
C2633 1000pF 630V
CHINA
R2630
0
NON_CHINA
R2627
0
NON_CHINA
R2628
0
NON_CHINA
R2622
0
NON_CHINA
R2626
0
NON_CHINA
R2625
0
NON_CHINA
C2605
0.1uF
50V
T2
C2500
0.1uF
16V
TUNER_CHINA
R2501
20K
OPT
R2500
1K
TUNER_CHINA
RF_SWITCH_CTL
TU2601
TDJM-C301D
TUNER_CHINA
1
B1[+3.3V]
2
RF_SW_CTL
3
NC_1
4
SCL_RF
5
SDA_RF
6
NC_2
7
NC_3
8
SIF
9
CVBS
10
NC_4
11
NC_5
12
ERROR
13
GND_1
14
MCLK
15
SYNC
16
VAILD
17
D0
18
D1
19
D2
20
D3
21
D4
22
D5
23
D6
24
D7
25
RESET_DEMOD
26
B2[+3.3V]
27
SCL_DEMOD
28
B3[+1.1V]
29
NC_6
30
SDA_DEMOD
47
SHIELD
B1
B1
A1
A1
TU_GND_B
TU_GND_A
R2608-*1
MLG1005SR27JT
(OPT)TU_I2C_FILTER
R2607-*1
MLG1005SR27JT
(OPT)TU_I2C_FILTER
R2606-*1
100
AGC_KR/AJJA
TU2601-*1
TDJM-G105D
TUNER_AJ_T2
1
B1[+3.3V]
2
NC_1
3
AIF_AGC
4
SCL_RF
5
SDA_RF
6
AIF[P]
7
AIF[N]
8
NC_2
9
NC_3
10
NC_4
11
B2[+3.3V]
12
ERROR
13
GND_1
14
MCLK
15
SYNC
16
VAILD
17
D0
18
D1
19
D2
20
D3
21
D4
22
D5
23
D6
24
D7
25
RESET_DEMOD
26
B3[+3.3V]
27
SCL_DEMOD
28
B4[+1.1V]
29
F22_OUTPUT
30
SDA_DEMOD
47
SHIELD
B1
B1
A1
A1
L14 TUNER_EU T2/C/S2
GPIO must be added.
GND seperation for CHINA tuner
ERROR & VALID PIN
R2
R1
Vo=0.8*(1+R1/R2)
close to TUNER
should be guarded by ground
Close to TUNER
TUNER FOR AJ_T2 (TAILAND)
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Only for training and service purposes LGE Internal Use Only