LG 22LE5300, Service Manual

Page: 34 / 71

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.
+5V_TU
TUNER_RESET
C5006
100pF
50V
C5011
0.01uF
25V
BOOSTER_OPT
TU_CVBS
CONTROL_ATTEN
R5009
100
+3.3V_TU
R5001
0
RF_AGC_OPT
C5003
0.1uF
16V
+5V_TU
L5003
BLM18PG121SN1D
R5017
2.2K
BOOSTER_OPT
+3.3V_Normal
+3.3V_TU
Q5003
2SC3052
RF_AGC_OPT
E
B
C
C5024
0.1uF
16V
RF_SWITCH_CTL
C5018
22uF
16V
OPT
C5002
0.1uF
16V
RF_S/W_OPT
+1.2V/+1.8V_TU
LNA2_CTL
+5V_TU
IF_N_MSTAR
Q5005
ISA1530AC1
NON_TU_CVBS_BYPASS
E
B
C
L5001
MLB-201209-0120P-N2
BOOSTER_OPT
+3.3V_TU
+3.3V_TU
C5010
0.1uF
16V
C5007
0.1uF
16V
TU_SDA
R5027
1K
OPT
L5002
BLM18PG121SN1D
R5003
0
IF_AGC_SEL
C5021
0.1uF
16V
R5021
10K
BOOSTER_OPT
R5025
4.7K
R5026
1K
OPT
R5011
100K
C5022
0.1uF
16V
R5002
0
RF_S/W_OPT
Q5001
ISA1530AC1
BOOSTER_OPT
E
B
C
C5001
100pF
50V
+3.3V_TU
R5022
1K
C5016
0.1uF
16V
OPT
C5026
0.1uF
16V
RF_AGC_OPT
C5023
0.1uF
16V
R5014
0
BOOSTER_OPT
R5032
82
+5V_TU
C5017
22uF
16V
OPT
TU_SIF
Q5004
ISA1530AC1
E
B
C
C5020
22uF
16V
C5019
22uF
16V
IF_P_MSTAR
C5027
10uF
10V
RF_AGC_OPT
TU_SCL
+5V_TU
Q5002
2SC3052
BOOSTER_OPT
E
B
C
R5024
0
R5028
10K
RF_AGC_OPT
R5019
10K
BOOSTER_OPT
+1.2V/+1.8V_TU
R5033
1
C5028
0.1uF
16V C5029
10uF
10V
R5034
0
NON_DEMOD_OPT
R5035
0
NON_DEMOD_OPT
R5038
1.2K
R5036
10
R5007 100
DEMOD_OPT
R5006 100
DEMOD_OPT
IF_P_EXT
IF_N_EXT
C5031
0.1uF
16V
IF_AGC
C5025
0.1uF 16V
R5029
470
TU5001
TDTJ-S001D
DVB_1INPUT_H_LGIT
14
3.3V
13
1.2V
5
AS
12
GND
11
VIDEO
2
BST_CNTL
10
NC
4
NC[RF_AGC]
1
ANT_PWR[OPT]
17
DIF_1
9
SIF
8
NC[IF_TP]
3
+B
16
IF_AGC_CNTL
7
SDA
6
SCL
15
RESET
18
DIF_2
19
SHIELD
IC5001
AZ1117H-ADJTRE1(EH11A)
2
OUTPUT
3
INPUT
1
ADJ/GND
R5030
220
NON_TU_CVBS_BYPASS
R5031
220
TU5001-*3
TDVJ-H001F
NTSC_1INPUT_H_LGIT
14
3.3V
13
1.2V
5
AS
12
GND
11
VIDEO
2
BST_CNTL
10
NC
4
NC[RF_AGC]
1
ANT_PWR[OPT]
17
DIF_1
9
SIF
8
NC(IF_TP)
3
+B
16
IF_AGC_CNTL
7
SDA
6
SCL
15
RESET
18
DIF_2
19
SHIELD
TU5001-*2
TDVJ-H031F
NTSC_1INPUT_V_LGIT
14
3.3V
13
1.2V
5
AS
12
GND
11
VIDEO
2
BST_CNTL
10
NC
4
NC[RF_AGC]
1
ANT_PWR[OPT]
17
DIF_1
9
SIF
8
NC(IF_TP)
3
+B
16
IF_AGC_CNTL
7
SDA
6
SCL
15
RESET
18
DIF_2
19
SHIELD
+5V_Normal
TU5001-*4
UCA36AL
NTSC_1INPUT_H_SANYO
14
IF_AGC
13
D_IF2
5
NC_3[RF_AGC]
12
D_IF1
11
NC_5
2
NC_2
19
VIDEO
18
NC_7
10
AS
4
+5V[MAIN]
1
NC_1
17
NC_6[AFT]
9
SCL
8
SDA
3
GND_1
16
SIF
7
GND_2
6
NC_4[VT]
15
+5V[VIF]
20
SHIELD
TU5001-*1
TDTR-T035F
NTSC_2INPUT_H_LGIT
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
R5039
0
TU_CVBS_BYPASS
R5018
1.2K
R5020
1.2K
R5015 33
R5016
33
C5012
18pF
50V C5013
18pF
50V
Ver. 1.1
GPIO must be added.
ATSC_CAN TUNER
The pull-up/down of LNA2_CTL
is depended on MODLE_OPT_1.
GPIO must be added for FE_BOOSTER_CTL
GP2_Saturn7M
Close to the tuner
OPTION : RF AGC
OPTION : BOOSTER
Pull-up can’t be applied
because of MODEL_OPT_2
200mA
should be guarded by ground
OPTION : RF S/W
LGIT CAN H/N TUNER for US&KOR&BRAZIL&TAIWAN&AUS
60mA
26
This was being applied to the only china demod,
so this has to be deleted in both main and ISDB sheet.
*Change History.
1.De-reting
1) R5029,R5030,R5031 : 1005 Type ==> 1608 Type(w.s.Jeong_1019)
Ver 1.0 --> 1.1:Change of chip type, 091019, w.s.jeong
2) R5030,R5031 : 200/1608 Type ==> 220/2012 Type(w.s.Jeong_1116)
2.ADD of TUNER P/N (w.s.Jeong_1116)
Ver 1.1 --> 1.2:Change of chip type, Add of Tuner P/N for NTSC_1INPUT
฀฀
091116, w.s.jeong