T
H
E
R
M
A
L
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.
PWM_DIM
+3.5V_ST
R714
1K
R729
1K
PWM_DIM_60HZ
+1.2V_VDDC
C744
0.1uF
16V
+3.5V_ST
C761
0.1uF
16V
C742
10uF
6.3V
C745
10uF
6.3V
+1.8V_M
R710
100
R742
1
C752
0.1uF
16V
0.1uF
C702
16V
PANEL_VCC
C707
0.1uF
50V
PANEL_ON
R747
10K
INV_ON
R749
2.2K
POWER_SW
+24V_AMP
+3.3V_M
P_12V
C741
0.1uF
16V
+3.3V_M
L750
BLM18PG121SN1D
Q721
MMBT3904(NXP)
E
B
C
RL_ON
R744
10K
P_12V
+3.5V_ST
C750
0.1uF
16V
+3.3V_M
IC701
MP20051
3
FB
2
OUT_2
4
GND
1
OUT_1
5
EN
6
NC
7
IN_1
8
IN_2
9
[EP]GND
C743
10uF
6.3V
C740
10uF
6.3V
C754
10uF
6.3V
Q722
MMBT3906(NXP)
E
B
C
Q710
AO3435
G
D
S
R762
5.6K
R761
33K
Q711
MMBT3904(NXP)
E
B
C
C777
10uF
10V
OPT
P_12V
+3.3V_M
C773
0.1uF
16V
R771
33
IC709
MP1497DJ
3
SW
2
IN
4
GND
1
SS
5
BST
6
EN
7
VCC
8
FB
C775
0.1uF
16V
C774
0.1uF
R778
47K
C771
1uF
25V
R777
100K
C770
10uF
16V
0.1uF
C705
16V
C772
0.1uF
16V
L771
6.8uH
NR8040T4R7N
R770
43K
1%
R772
8.2K
1%
+5V_USB
C776
22uF
10V
R748
33K
R740
2.7K
1%
R741
4.7K
1%
IC711
AP1117E18G-13
2 OUT
3
IN
1
ADJ/GND
+3.5V_ST
R716
10K
R715
10K
Q703
MMBT3904(NXP)
E
B
C
R750
10K
R
E
A
D
Y
J
P
7
0
8
J
P
7
0
9
J
P
7
1
0
J
P
7
1
1
C753
4.7uF
10V
ZD701
20V
READY
ZD702
SD05
R729-*1
100
PWM_DIM_120HZ
R728
100
PWM_DIM_120HZ
L702
120OHM
L703
120OHM
L761
120OHM
L770
120OHM
L701
500-ohm
L704
500-ohm
+3.5V_ST
C701
10uF
10V
2012
Q720
DMP2130L
DIODES
G
D
S
R766
5.6K
R765
5.6K
C760
10uF
16V
C762
0.1uF
25V
OPT
Q720-*1
AO3407A
AOS
G
D
S
P701
SMAW200-H18S5
14
12V
9
24V
4 PDIM#1
18
GND
13
12V
8 PDIM#2
3
3.5V
17
GND
12
GND
7
GND
2 DRV_ON
16
NC
11
GND
6 3.5V
1
PWR_ON
15
12V
10
24V
5
3.5V
19
.
Z
D
7
0
3
2
.
5
V
Z
D
7
0
4
5
V
Z
D
7
0
0
5
.
6
B
7
7
POWER
32/42LB550A
2013/08/15
** Switch Panel-Vcc
R1
** +3.5V_ST -> 3.3V_M
R2
** 3.5V_ST -> 1.26V VDDC
OUT:1.26V
FROM LIPS & POWER B/D
V0 = 0.8*(1+(R2/R1))
** 3.3V_M -> 1.8V_M
3A
OUT:5V
**12V->USB 5V
Closed IC709
R2
Closed IC709
R1
V0 = 0.8*(1+(R1/R2))
** Jig Point_GND
EAX65550501
Add for improving main IC Burtn issue
Add for improving main IC Burtn issue
LB45B/LT5B
Содержание 42LB550A
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Страница 49: ...Appendix Exchange PSU LED driver No Light Dim Light Dim Light Dim Light No picture Sound Ok ...