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APPROVAL SHEET
PART NO. BN44-00249C PUB. DATE 2009.04.15
MODEL NAME PWI1902SS(A) REV. DATE 2009.04.15




3. Circuit Diagram




Page Rev. 1.0 Page 14
5 4 3 2 1




F201
15V/1.0A
INVERTER
4.0AL/125V




D
HOT COLD C206 C207
D
470uF/25V 470uF/25V CN201
(NXB,MK) (NXB,MK)
TF101
1400267
B-DIM




1
(EER3016) SR310-15
! D203
15V/0A




2
BD101 R107
1 10
C102
! D2SB60 47K
!
+




1.5A/ 600V R104 1000pF 2W C200 C301 C302
R200
C101 24K 400V MINI 4
(3216) C209 R202
68uF/450V C106 N.A N.A N.A N.A 470uF/25V N.A
-




(CD263,KMF,WL) R105 N.A D101 (NXB,MK)
24K UF4007 5
(3216) R201 N.A
9
R106
! 24K GND




4 3
(3216)
CX102
!
0.1uF/275VAC
U101
4 ILIM Vstr 5
FB101
6,7,8
C
! ! DRAIN
BSF3550
C


VCC 2
CY101 CY102 H/S1
1 GND FB 3
1000pF/250VAC-Y1 1000pF/250VAC-Y1 SR506A




6 5
D102 D201 L101
! 2 4 FSFM260
R108
5V/1.1A
3 8
1N4007 0 BSF3550
LF101
(3216)

1 3 ZD102 C105 C104 C201 R205
A-DIM




8 7
1000uF/10V 5.1K/F
1420400 1N5250B 100n/50V 47uF C203
(NXB,MK) (1608) ON/OFF
(20V) K,X7R 50V
(1608) (WF,NXA) 2 6,7
CN202
330uF/25V
3.3V
(WL,LXZ)




12 11 10 9




1 2 3 4 5
! LED
R203 R204
R101 R102 R103 620 300 KEY1
470K 470K 470K (1608) (1608)
(3216) (3216) (3216) PC101 KEY2
! LTV817 C208
GND
CX101
0.47uF/275VAC R206 100n/50V
B R111 10 B
(1608) 7.5K K,X7R A600237 SMAW200A-05
VX101
(1608) (1608)
!
10 751 R109 C103 ZD101
N.A 33n/50V 1N5242B C204 U201 C210
K,X7R (12V) ! 10uF/50V FAN431A R208 C205 10n/50V
(1608) (WF,NXA) 4.75KF 100uF/16V K,X7R
F101 TH101 (RD,KMG)
! T3.15AL/ 250V 5D-8 ! (1608) (1608)


CY103
! 3300pF /
250VAC-Y1 S-GND
P-GND
F.G


1 2 3 !
LIVE FG NEUTRAL

IN101
ST-01AY



A A




Title
PWI1902SS(A)
Size Document Number Rev
A3
POWERNET 1.0

Date: Tuesday, March 17, 2009 Sheet 1 of 1
5 4 3 2 1
5 4 3 2 1




D D



+15V

C7
1uF/25V C10
R1 2.2n/50V
Z,Y5V
3.9K/F (2012) R8 Q5 K,X7R
(1608) 510/F MMBT3904 (1608) 3
Q1 U2
(1608) (SOT23)
MMBT3904
(SOT23) 4

Q6
ZD1 MMBT3906
(SOT23)
5.6V R11
(SOT23) 1K
R9 R10 (1608)
82K/F 2M
(1608) (1608) R14
5,6,7,8 T1
100/F
Q4 (1608)
R3 2N7002
NA (SOT23) 10uF/16V
STM8309T K,X5R
C5 U1 OZ9938_B1 (3225)
C 2.2uF/16V C
DRV1 P_GND
K,X5R
(1608)
2 C19 C32
VDDA DRV2 N.A CCFL1 CCFL2
R12 R2 C4 10p/50V C22 C21 CN1 CN2
1uF/16V R6 C13A J,COG 5p/3KV 3p/3KV
BDIM(0~4.5V)
Z,Y5V (1608) 1
0/J 10K/J TIMER GND_A C13
(1608) 10K
(1608) (1608) 10p/50V
D1 D2 D4 D3
(1608) J,COG VSEN VSEN FB FB
C14 220p/50V (1608)
DM CT
J,COG
(1608)
BAV99 BAV99 BAV99 BAV99
R4 C3 47n/50V R22 (SOT23) R21
ISEN SETCMP (SOT23) (SOT23) (SOT23)
100K/J 1n/50V R7 C15 K,X7R C26 C25 1K/F 1K/F
(1608) K,X75 30K (1608) 6.8n/50V 4.7n/50V (1608) (1608)
(1608) (1608) J/(1608) J/(1608)
C8 N.A
VSEN LCT
C8A N.A

C16
OVPT ENA R17 1n/50V
R5 360K/F J,X7R
27K (1608) (1608)
(1608) NC NC
B B

1n/50V
K,X7R
R13 C17 (1608)
ON/OFF
10K
(1608)

VSEN
C11 R15
47n/50V 9.1M
K,X7R (1608)
(1608)



Q7
R20 R16
MMBT3904
DCR FB
(SOT23) C12
10K 47K/F R18 R19
0.22uF/50V C9 240/F
(1608) (1608) N.A
K,X7R 220p/50V (1608)
C6 (1608) K,X7R
10n/50V (1608)
A K,X7R A
(1608)




Title
PWI1902SS(A)
Size Document Number Rev
A3 1.0

Date: Tuesday, March 31, 2009 Sheet 1 of 1
5 4 3 2 1