Read LG 37LF7700 Service Manual online
1
1
2
2
3
3
4
4
5
5
6
6
A
A
B
B
C
C
D
D
+VDD_1V2
+VDD5
+5V
+VDD5
+VDD_DDR
+3V3M
+3V3M
PWR_GOOD
[20]
Title
Size
Document Number
Rev
Date:
Sheet
of
71-00193MA
1.0
BCM7404 POWER [DC/DC]
LGE freesat
32/37LF7700
19
45
Monday, March 16, 2009
Title
Size
Document Number
Rev
Date:
Sheet
of
71-00193MA
1.0
BCM7404 POWER [DC/DC]
LGE freesat
32/37LF7700
19
45
Monday, March 16, 2009
Title
Size
Document Number
Rev
Date:
Sheet
of
71-00193MA
1.0
BCM7404 POWER [DC/DC]
LGE freesat
32/37LF7700
19
45
Monday, March 16, 2009
+1.2V BCM7404 CORE Power
R2
R1
Vout = 0.8V x (1 + R2/R1)
X5R
X5R
Q
731 sh
or
t
pr
ote
ct
ion
+5V System Power
Tpy. 1600mA
C740
226p/6.3V/2012
C740
226p/6.3V/2012
C737
102p/50V/1005
102p/50V/1005
C737
102p/50V/1005
102p/50V/1005
C744
334p/25V
C744
334p/25V
C736
104p/16V/1005
C736
104p/16V/1005
R734
114/1005
R734
114/1005
Q731
IRLML6402TRPBF
Q731
IRLML6402TRPBF
2
1
3
C733
226p/6.3V/2012
C733
226p/6.3V/2012
U731
RT8004P/CP
RT8004P/CP
U731
RT8004P/CP
RT8004P/CP
VDD
1
PGOOD
2
COMP
3
FB
4
RT
5
SYNC/MODE
6
EN/SS
7
PVDD
9
PVDD
16
LX
10
LX
11
LX
14
LX
15
GND
8
PGND
12
PGND
13
PAD
17
D731
OPEN-CJBAT54
OPEN-CJBAT54
D731
OPEN-CJBAT54
OPEN-CJBAT54
1
3
C735
106p/16V/2012
C735
106p/16V/2012
Q732
MMBT4401
MMBT4401
Q732
MMBT4401
MMBT4401
1
2
3
C742
471p/50V/1005
C742
471p/50V/1005
R739
222/1005
222/1005
R739
222/1005
222/1005
R732
103/1005
R732
103/1005
C731
106p/16V/2012
C731
106p/16V/2012
L731
BLM21P300SPT
BLM21P300SPT
L731
BLM21P300SPT
BLM21P300SPT
R731
104/1005
R731
104/1005
C738
220p/50V/1005
C738
220p/50V/1005
C732
106p/16V/2012
C732
106p/16V/2012
TP731
TP10
TP10
TP731
TP10
TP10
1
R735
304/F/1005
R735
304/F/1005
R738
472/1005
472/1005
R738
472/1005
472/1005
R736
103/1005
R736
103/1005
R733
154/F/1005
R733
154/F/1005
C739
226p/6.3V/2012
C739
226p/6.3V/2012
L732
SPC6025-1R0M
L732
SPC6025-1R0M
R737
472/1005
R737
472/1005
TP732
TP10
TP10
TP732
TP10
TP10
1
1
1
2
2
3
3
4
4
5
5
6
6
A
A
B
B
C
C
D
D
+3V3_CPU
+VDD_DDR
+3V3_A_CPU
+3V3_D_CPU
+VDD5
VDAC_AVDD33
+VDD5
+3V3M
+3V3M
+DDR_VREF
+VDD_DDR
+DDR_VTT
PWR_GOOD
[19]
Title
Size
Document Number
Rev
Date:
Sheet
of
71-00193MA
1.0
BCM7404 POWER [Regurator]]
LGE freesat
32/37LF7700
20
45
Monday, March 16, 2009
Title
Size
Document Number
Rev
Date:
Sheet
of
71-00193MA
1.0
BCM7404 POWER [Regurator]]
LGE freesat
32/37LF7700
20
45
Monday, March 16, 2009
Title
Size
Document Number
Rev
Date:
Sheet
of
71-00193MA
1.0
BCM7404 POWER [Regurator]]
LGE freesat
32/37LF7700
20
45
Monday, March 16, 2009
DDR MEMORY Power
Power Sequence
+3.3V Video DAC
H: Chip enable High
OPEN
TP755
TP10
TP10
TP755
TP10
TP10
1
C755
OPEN-475p/16V/3216
C755
OPEN-475p/16V/3216
Q751
IRLML6402TRPBF
IRLML6402TRPBF
Q751
IRLML6402TRPBF
IRLML6402TRPBF
2
1
3
D751
ZMM5226B(3V3)
ZMM5226B(3V3)
D751
ZMM5226B(3V3)
ZMM5226B(3V3)
1
2
R760
102/1005
R760
102/1005
C771
OPEN-105p
C771
OPEN-105p
R762
201/F/1005
R762
201/F/1005
C753
104p/16V/1005
C753
104p/16V/1005
R756
102/1005
R756
102/1005
TP753
TP10
TP10
TP753
TP10
TP10
1
R753
1211/F/1005
1211/F/1005
R753
1211/F/1005
1211/F/1005
R764
103/1005
103/1005
R764
103/1005
103/1005
C772
105p/16V/1005
C772
105p/16V/1005
R754
103/1005
R754
103/1005
TP751
TP10
TP10
TP751
TP10
TP10
1
Q753
MMBT4401
MMBT4401
Q753
MMBT4401
MMBT4401
1
2
3
C768
470uF/16V/BXJ/S
C768
470uF/16V/BXJ/S
C763
102p/50V/1005
C763
102p/50V/1005
R761
121/F/1005
121/F/1005
R761
121/F/1005
121/F/1005
C773
105p/16V/1005
C773
105p/16V/1005
TP756
TP10
TP10
TP756
TP10
TP10
1
C759
104p/16V/1005
C759
104p/16V/1005
R757
121/5025
R757
121/5025
C774
100uF/16V/MVK/S
C774
100uF/16V/MVK/S
U752
FAN1655M
FAN1655M
U752
FAN1655M
FAN1655M
VDD
1
VDD
2
VTTFORCE
3
VSS
4
VSS
5
VTTFORCE
6
VDD
7
VDDQ
14
VREFOUT
13
VSSQ
12
/SHDN
11
VREFIN
10
VTTSENSE
9
VSS
8
R759
472/1005
R759
472/1005
R758
121/5025
R758
121/5025
C754
100uF/16V/MVK/S
C754
100uF/16V/MVK/S
C752
104p/16V/1005
C752
104p/16V/1005
TP752
TP10
TP10
TP752
TP10
TP10
1
R752
2801/F/1005
2801/F/1005
R752
2801/F/1005
2801/F/1005
C758
104p/16V/1005
C758
104p/16V/1005
TP754
TP10
TP10
TP754
TP10
TP10
1
C751
104p/16V/1005
C751
104p/16V/1005
C765
102p/50V/1005
C765
102p/50V/1005
U753
LD1117AL-ADJ
LD1117AL-ADJ
U753
LD1117AL-ADJ
LD1117AL-ADJ
VIN
3
ADJ
1
VO
2
TAP
4
C756
104p/16V/1005
C756
104p/16V/1005
C761
104p/16V/1005
C761
104p/16V/1005
C775
105p/16V/1005
C775
105p/16V/1005
C764
102p/50V/1005
C764
102p/50V/1005
U751
RT9183H-PM5
RT9183H-PM5
U751
RT9183H-PM5
RT9183H-PM5
VI
2
VO
4
GND
3
SEN
5
SD
1
GND
6
R763
102/1005
102/1005
R763
102/1005
102/1005
R751
OPEN-103/1005
R751
OPEN-103/1005
C762
104p/16V/1005
C762
104p/16V/1005
Click on the first or last page to see other 37LF7700 service manuals if exist.