LG 60PB5600 Service Manual page 18

<L14 TUNER T2/C/S2>
TU_KR
TU300-*1
TDJH-H101F
TU300
B1[+3.3V] TDJH-G101D
1
NC_1
2
DVB-T/C_Tuner
IF_AGC
3
SCL
4
B1[+3.3V]
SDA
1
5
IF[P]
6
NC_1
IF[N]
7 2
NC_2
8
IF_AGC
NC_3
3
9
SCL
A1 B1
4
A1 B1
47
SDA
5
SHIELD
IF[P]
6
IF[N]
7
NC_2
8
NC_3
9
A1 B1
A1 B1
47
SHIELD
TU303
TDJK-T101F
TU_BR_PA
B1[+3.3V]
1
RF_S/W_CTL
2
IF_AGC
3
SCL
4
SDA
5
IF[P]
6
IF[N]
7
NC_1
8
NC_2
9
A1 B1
A1 B1 TU_GND_B
47
SHIELD
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.
TUNER
Copyright © 2014 LG Electronics Inc. All rights reserved.
Only for training and service purposes
TU302
TDJM-K101F
TU_CO
DVB-T2/C/S2_Tuner
B1[+3.3V]
1
RF_SW_CTL
2
AIF_AGC
3
SCL_RF
4
SDA_RF
5
AIF[P]
6
AIF[N]
7
NC_1
8
NC_2
9
NC_3
10
NC_4
11
ERROR
12
GND_1
13
MCLK
14
SYNC
15
VAILD
16
D0
17
D1
18
D2
19
D3
20
D4
21
D5
22
D6
23
D7
24
RESET_DEMOD
25
B2[+3.3V]
26
SCL_DEMOD
27
B3[+1.1V]
28
NC_5
29
SDA_DEMOD
30
A1 B1
A1 B1
47
A1
SHIELD
A1
TU301
TDJM-G101D
+3.3V_LNA
B1[+3.3V]
1
C307
0.1uF
NC_1 100pF
C324
2 50V
should be guarded by ground
AIF_AGC
3
IF_AGC_MAIN
C306
0.1uF
16V
SCL_RF R306
0
4
C308
SDA_RF
47pF
5 50V
C309
AIF[P]
47pF
R304
6 10 50V
AIF[N]
7
NC_2 R305
10
8 C328
C327
READY
READY
10pF
10pF
NC_3
9
NC_4
10 +3.3V_TU
B2[+3.3V]
11
C301
C300
100pF 0.1uF
F_NIM
ERROR
50V 16V AR300 0
12
FE_TS_ERR
BUF1_FE_TS_CLK
GND_1
BUF1_FE_TS_SYN
13
BUF1_FE_TS_VAL_ERR
MCLK
14
SYNC
15
VALID
16
BUF1_FE_TS_DATA[0-7]
F_NIM
D0
AR301 0
17
BUF1_FE_TS_DATA[0]
BUF1_FE_TS_DATA[1]
D1
BUF1_FE_TS_DATA[2]
18
BUF1_FE_TS_DATA[3]
D2
19
D3
20
F_NIM
D4
AR302 0
21
BUF1_FE_TS_DATA[4]
BUF1_FE_TS_DATA[5]
D5
BUF1_FE_TS_DATA[6]
22
BUF1_FE_TS_DATA[7]
D6
23
D7
24
F_NIM
RESET_DEMOD
R300
25 10
DEMOD_RESET
F_NIM
C302
B3[+3.3V]
0.1uF
26
16V
SCL_DEMOD +3.3V_S2_DE
F_NIM
27 R301 22
DEMOD_SCL
C303 READY
R330
20pF
2.2K
B4[+1.1V]
50V
28 F_NIM
F_NIM
F22_OUTPUT
+3.3V_S2_DE
R302
29 51
LNB_TX
SDA_DEMOD READY
F_NIM
R303 R331
30 22
2.2K
DEMOD_SDA
C304
20pF
50V
LNB
F_NIM
31
LNB_OUT
C305
0.1uF
GND 16V
F_NIM
32
B1
B1
47
47
<+3.3V_LNA>
RF_SWITCH_CTL
R322
close to Tuner
1K
RF_SWITCH_CTL
C312
R323
RF_SWITCH_CTL 0.1uF
20K
16V
RF_SWITCH_CTL
+3.3V_TU
R310 R312
1K 1K
R309 33
TU_SCL
R308 33
TU_SDA
IF_P_MSTAR
IF_N_MSTAR
<+3.3V_S2_DE>
+3.3V_S2_DE
F_NIM F_NIM
C310 C313
100pF 0.1uF
50V 16V
+1.2V_TU
C311 C314
100pF 0.1uF
50V 16V
F_NIM F_NIM
TUNER OPT1
DVB-T/C
TU300 TDJH-G101D
TU300-1 TDJH=H101F ATSC
TU301 TDJM-G101D DVB-S2/T2
TU302
TDJM-K101F
DVB-T2
TU303 TDJK-T101F
SBTVD
L14
Tuner
+3.3V_TU +3.3V_LNA
L300
UBW2012-121F
C319 C320
C322
22uF 0.1uF
22uF
10V 16V
10V
+3.3V_TU +3.3V_S2_DE
F_NIM
L301
BLM18PG121SN1D
C321 F_NIM F_NIM
C323 C326
0.1uF
16V 10uF 0.1uF
10V 16V
GND seperation for DVB-T2, SVBTVD tuner
OPT2 OPT3 OPT4
HNIM X
W/O AD
X
HNIM
W/O AD
W/O AD
X
HNIM
2013-08-06
3 10
LGE Internal Use Only