Hisense LCD24V88APAM Service Manual page 58

5
+12V_IN
HIGH NORMAL
XP26 XP26
LOW STANDBY
6
6
5
D
5
4 BL-ON/OFF STANDBY
3 STANDBY
4
3 BL-ADJUST BL-ADJUST
3
2
2
1 C148 C148
1
0.1uF 0.1uF
Power Power
C
+12V_IN
CA2 CA2 C16 C16 C286 C286
B
CA5 CA5
+ +
100uF/16V 100uF/16V
R54 10K R54 10K
STANDBY R46 R46 4.7K 4.7K V6 V6
3904 3904
R71 10K R71 10K
R72 R72 4.7K 4.7K V11 V11
3 ON_USB1
3904 3904
A
5
4
5Vstb
R8 R8
4.7K/NC 4.7K/NC
R38 R38 NC/0 NC/0 R39 R39 NC NC PW_CTL
V26 V26 1 R37 R37 4.7K 4.7K
3904/NC 3904/NC
C147 C147
0.1uF 0.1uF
R36 10K R36 10K
U10 U10
L17 15uH L17 15uH
AOZ1021 AOZ1021
1 8
PGND LX2
2 7
VIN LX1
3 6
AGND EN
4 5
FB COMP
R342 R342
R45 R45 C291 C291
R339 R339 52.3K 52.3K
100K 100K
10K 10K 2.2nF 2.2nF
C290 C290
NC NC
C285 C285
C289 C289
R340 R340
10K 10K
2.2nF 2.2nF
NC NC
5Vstb
R474 R474
C14 C14 U7 AO4801 U7 AO4801
22K 22K
1uF 1uF 1 8
S1 D1
2 7
G1 D1
3 6
S2 D2
4 5
G2 D2
5Vstb
R476 R476
C18 C18
22K 22K
1uF 1uF
4
3
main board pcb 1861
TO Inverter Board
5Vstb
R7 R7
4.7K 4.7K
HIGH NORMAL
LOW STANDBY
R33 10K R33 10K
V1 V1 1 PW_CTL
PW_CTL 3
3904 3904
3
3
5Vstb
CA4 CA4 C17 C17 C19 C19
C288 C288
STANDBY
+12V_IN
5VAIN
5VAIN
F1 1.5A F1 1.5A
+5V_USB
C345 C345 CA9 CA9
3 ON_PANEL
+ +
3
2
R203 R203
10K/NC 10K/NC
4.7K 4.7K
R178 R178 V2 V2
4.7K 4.7K 1 3904 3904
ON_PBACK
R43 R43
4.7K/NC 4.7K/NC
1 V3 V3
PWMB
3904/NC 3904/NC
+12V_IN
R21 R21 22K 22K
R11 R11
R34 R34 4.7K 4.7K 1 V104 V104 22K 22K
3904 3904
L1 L1 BLM31PG BLM31PG
CA6 CA6
R16 R16
L3 L3 BLM31PG BLM31PG
+ +
22K 22K
R4 R4
C7 C7
0.1uF 0.1uF NC/10K NC/10K
R35 R35
R29 R29 0R 0R R6 R6
4.7K 4.7K
ON_PANEL 1
V5 V5
C5 C5 NC/3904 NC/3904
0.1uF 0.1uF
Title Title Title
System Power System Power System Power
Size Size Size Document Number Document Number Document Number
A4 A4 A4 MST6E16 MST6E16 MST6E16
Date: Date: Date: Thursday, July 23, 2009 Thursday, July 23, 2009 Thursday, July 23, 2009
2
1
5Vstb
L64 L64 FB FB
5VAIN
L65 FB L65 FB
R20 R20
R183 R183 100 100 BL-ON/OFF
R18 R18 1K/NC 1K/NC BL-ADJUST
C6 C6
C146 C146
0.1uF 0.1uF
2.2uF/0R 2.2uF/0R
Note:
1.Left C6 NC if want output PWM puls；
2.V3-PWM调光，3904偶尔质量问题导致PWM
无法实现，后续新板建议使用1815。
+12V
C8 C8
1uF 1uF U4 U4 AO4801 AO4801
1 8
S1 D1
VCC-Panel
2 7
G1 D1
3 6
S2 D2
4 5
G2 D2
C9 C9 C13 C13
C10 C10
1uF 1uF
R12 R12
10K 10K
4.7K 4.7K
1 V4 V4
3904 3904
Sheet Sheet Sheet 1 1 1 of of of 9 9 9
1
D
C
B
A
Rev Rev Rev
A A A