Haier LT19Z6, Service Manual

Page: 74 / 76

74
D935
NC
D936
1N4148
D937
NC
D938
NC
GBIAS
1
GATE
2
NC
3
ISW
4
NC
5
ISP
6
ISN
7
VC
8
ACTL
9
DCTL
10
SS
11
NC
12
EN
13
OVP
14
VCC
15
GND
16
IC904
RT8482GS
R9101
0R01 1/10W
D918
1N4148
GATE
SS
ACTL
ISW
S
1
S
2
S
3
G
4
D
8
D
7
D
6
D
5
Q902
AO4454L
ISP
LED7 LED8
ISN
+5.2V
LED15 LED14 LED16
D907
NC
LED10 LED11 LED9 LED12 LED13
R952
12K 1/8W 1%
R973
R933
4R7 +-5% 1/8W
LED1
1 2
D906
B3100B
LED8 LED7
R951
1.2K 1%
R987
13K 1/6W
ISN
1
2
3
4
CN905
NC
SS
LED2
ON/OFF
GATE
1
2
C938
4N7 50V
60V
R931
150K 1/8W 5%
VC
C934
100N 50V
R975
ISP
VCC
ISN
C927
100N 50V
LED3
R930
150 OHM 1/8W
R947
10K OHM +-5% 1/8W
LED2
1
2
C935
100V 0.1UF Z Y5V
R937
1K 1/8W 1%
R934
36K 1/8W 1%
ISP
R986
3K9 1/8W 5%
LED2
LED14 LED15 LED16 LED13 LED9 LED11 LED12 LED10
LED4
+2.5V
Q904
2N3904
R941
-5% 1/8W
Sense the lowest output voltage
of RT8326 and then control RT8452
boost Vout.
ISW
OVP
Q911
2N3904
LED7 LED8
LED6
OVP
R959
D928
1N4148
Q913
2N3904
LED14
LED5
Q921
2N3904
1
2
C936
NC
60V
LED6
D934
1N4148
+ C929
47UF 35V
R927
NC
R928
NC
R929
NC
Q923
2N3904
R9108
0R01 1/10W
+5.2V
C940
NC
ACTL
60V
R963
NC
Q914
SST2222A
R942
2K4 +/-1% 1/8W
R9109
0R01 1/10W
R948
10K OHM +-5% 1/8W
R943
330 OHM +-1% 1/8W
Short LED protector
R945
12K 1/8W 1%
DC/DC Converter
Compensation circuit
IC905
KIA431A-AT /P
L904
100UH
R932
6.2K 1/8W
R940
1K 1/8W 1%
60V
LED12
R9102
0R01 1/10W
R935
-5% 1/8W
Q903
2N3904
R949
75R 1/8W 1%
R9103
NC
R961
NC
R9104
NC
LED14
Q916
NC
R9105
NC
R985
1-5% 1/8W
R962
10ohm +/-1% 1/8W
C937
100N 50V
1
2
C933
470NF 25V
R9106
0R01 1/10W
R958
R9107
0R01 1/10W
+2.5V
R936
1K 1/8W
1
2
3
4
5
6
CN906
CONN
C939
1N 50V
8-Strings for one Light
R939
0.05R
D908
1N4148
D909
NC
+
C932
82UF 100V
R984
-5% 1/8W
D910
NC
D911
NC
D913
NC
D914
NC
Q918
2N3904
D915
NC
D916
NC
D917
NC
D919
NC
D920
1N4148
D921
NC
D922
NC
R950
10K OHM +-5% 1/8W
+
C928
330UF 35V
DIM
R971
1-5% 1/8W
1
2
ZD901
MTZJ T-72 15B
ON/OFF
R960
+
C931
82UF 100V
C941
100N 50V
R9110
NC
LED15
LED1 LED2 LED4 LED6 LED3 LED5
+16V
Q926
2N3904
LED16
Q927
2N3904
Q905
2N3904
Q906
2N3904
R980
NC
Q907
NC
R978
Q908
2N3904
10ohm +/-1% 1/8W
LED12 LED13
R976
LED14
Q909
NC
Q915
2N3904
Q924
NC
R977
LED9
LED2 LED1 LED4 LED5 LED6 LED3
R972
LED11
Q925
2N3904
R9111
NC
Q917
NC
LED10
R974 R979
R981
-5% 1/8W
R944
NC
Q922
NC
10ohm +/-1% 1/8W
R946
10K 1/4W
Q920
2N3904
ON/OFF
R9112
NC
DIM
D912
1N4148
R953 R954 R955
R9113
0R01 1/10W
R956 R957
Q910
2N3904
R9114
0R01 1/10W
D923
NC
1 2
FB901
BEAD
D924
1N4148
D925
NC
D926
NC
D927
NC
D929
NC
Q912
2N3904
D930
NC
D931
NC
D932
NC
D933
NC