ViewSonic VP720B Service Manual - Page 86

AC IN 100~240V - driver

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10.8. A/D POWER L FG N 511K/1206 R843 NC R851 R820 22 1/2W DIP D804 2A07 C820 C823 100K/1206 1000PF/1KV 470uF/25V R833 R835 100K/1206 DIP D803 2A07 C806 3 7,8 100K/1206 100K/1206 1000PF/1KV + R834 DIP L803 + D802 2A07 C805 C813 0.01UF R839 NC R836 D806 BYV26C D821 SRF10120 + 5.2uH 9 OPTION SRF20120 C822 100uF 500V D805 NC D824 1500uF/16V 400V 911K/DIP 1/2S R844 NC D801 2A07 D823 L804 R806 1 SR36 JUMPER 511K/1206 R839 L806 910K /1206 10 4 bead D822 C824 IN4148/DIP(3.3V) D807 SR36 1000UF D809 1N4148(5V) 1U4G 5 11,12 C821 + 10V R801 NA + 1S4(option) DIP R816 11EQS04(OPTION) T801 R821 1000PF/1Kv 681/1206 R802 C810 ER28 10 1/2W option 10 3A 33uF/50V R805 DIP 270/1206 C825 L807 (R851) (39K TO 910K + 1206 L801 BEAD 220/1206 470uF + 16V AP03N70F-A R812 JP 5V1206) R804 C807 Q801 C831 1M /1206 511K/DIP 1/2S 0.1uF 10000PF R848 R846 1K/SMD OPTION 2K/DIP R803 C809 1206 R847 R845 1K/DIP 2K(5V) 1M /1206 I801 LD7552 10uF/50V R852 1/1W 1 GND Driver 8 (10K) 1206 OPTION 6.8/1W C804 NC 2 FB VDD 7 R807 39/1206 3 VIN Sense 6 (OPTION) 1N4148/DIP Q803 MMBT3904 SMD Q805 SMD OPTION MMBT3906 Q804 SMD D816 1N4148/DIP OPTION L805 ET-20 C801 0.47uF L802 3T F801 T2.5A/250V L808 3T C803 4700pF C802 4700pF 4 RI RT 5 R832 D812 1K/1206 R811 R823 C808 180P/DIP 0.62/ 2W 1K/DIP R849 R850 4.7K/SMD 1206 OPTION (330P) (0.68/2W) R840 3.92K/SMD D808 OPTION (VA721) OPTION 3K/DIP 1206 OPTION 3.9K C845 0.1uF/50V R808 30V(3.3V) NC R842 MNMBT2907A Q802 DIP 133K 1%/1206 30V(5V) 4 27V(OPTION) 1 1206 OPTION PN2907A R824 24.9K 1%(5V)/1206 C811 R826 5.6K Q806 DIP SMD 8.25K 1% (3.3V) 1000P/DIP 3 2 1206 MMBT3904 OPTION R831 I802 TLP621 C826 110K 1% I803 4700PF/DIP R825 D813 TL431D 13K 1% R809 1206 47R/1206 1N4148/DIP C812 10000P/DIP C839 + 1uF/50V S801 AC IN 100~240V MMBT3906 Brightness ON/OFF 10 9 8 7 6 5 4 3 2 1 12V NC ON/OFF DIM 5V/3.3V 5V/3.3V GND Mute Volume GND P802 R828 3.65K 1% DIP R830 OPTION 1.18K 1%(3.3V) 2.2K 1%(5V) 1.81K(VP720) 1.6K DIP 12V 5V / 3.3V ViewSonic Corporation Model POWER Title Date Rev: ViewSonic Corporation Confidential - Do Not Copy 83 VP720-1_VP720b-1

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10.
8
.
A/D POWER
2.2K 1%(5V)
2K(5V)
(OPTION)
1S4(option)
11EQS04(OPTION)
(0.68/2W)
(VA721)
OPTION
27V(OPTION)
(R851)
(39K TO
5V1206)
(330P)
OPTION
OPTION
6.8/1W
option
270/1206
220/1206
OPTION
PN2907A
DIP
OPTION
OPTION
OPTION
OPTION
OPTION
OPTION
OPTION
1.81K(VP720)
OPTION 3.9K
OPTION SRF20120
1.6K
Brightness
ON/OFF
12V
5V / 3.3V
L805
ET-20
L806
bead
+
C824
1000UF
10V
R851
NC
L801
BEAD
C811
1000P/DIP
R831
110K 1%
C826
4700PF/DIP
D801
2A07
R850
4.7K/SMD
1206
D813
1N4148/DIP
R824
24.9K 1%(5V)/1206
8.25K 1% (3.3V)
R805
910K
1206
Q806
MMBT3904
SMD
D804
2A07
D809
IN4148/DIP(3.3V)
1N4148(5V)
D803
2A07
L807
JP
D802
2A07
C808
180P/DIP
C806
1000PF/1KV
DIP
C831
10000PF
R836
100K/1206
L804
JUMPER
R833
100K/1206
C803
4700pF
R834
100K/1206
C807
0.1uF
R823
1K/DIP
D821
SRF10120
+
C809
10uF/50V
R843
511K/1206
R848
1K/SMD
1206
R821
10
1/2W
DIP
L803
5.2uH
Q805
MMBT3906
SMD
D808
30V(3.3V)
30V(5V)
I801
LD7552
6
5
8
2
4
1
7
3
Sense
RT
Driver
FB
RI
GND
VDD
VIN
D816
1N4148/DIP
R825
13K
1%
1206
C821
1000PF/1Kv
DIP
R808
133K 1%/1206
R849
3.92K/SMD
1206
C804
NC
D807
1U4G
T2.5A/250V
F801
C813
0.01UF
500V
C801
0.47uF
D823
SR36
Q804
MMBT3906
SMD
R812
1M /1206
C820
1000PF/1KV
DIP
D824
NC
R807
39/1206
I802
TLP621
4
3
1
2
R803
1M /1206
+
C810
33uF/50V
R806
511K/1206
Q803
MMBT3904
SMD
Q801
AP03N70F-A
R835
100K/1206
R830
1.18K 1%(3.3V)
DIP
R816
681/1206
+
C839
1uF/50V
D805
NC
R826
5.6K
1206
P802
1
2
3
4
5
6
7
8
10
9
GND
Volume
Mute
GND
5V/3.3V
5V/3.3V
DIM
ON/OFF
12V
NC
D822
SR36
R842
NC
1206
R839
911K/DIP 1/2S
R852
(10K)
1206
R804
511K/DIP 1/2S
S801
AC IN 100~240V
N
L
FG
+
C805
100uF
400V
R839
NC
+
C823
470uF/25V
C812
10000P/DIP
C802
4700pF
D812
1N4148/DIP
L802
3T
R840
3K/DIP
+
C825
470uF
16V
R844
910K /1206
R820
22
1/2W
DIP
R828
3.65K 1%
DIP
+
C822
1500uF/16V
R846
2K/DIP
R802
10 3A
R847
1/1W
R801
NA
R845
1K/DIP
T801
ER28
3
5
4
1
7,8
10
11,12
9
R811
0.62/ 2W
R832
1K/1206
Q802
MNMBT2907A
C845
0.1uF/50V
DIP
D806
BYV26C
R809
47R/1206
TL431D
I803
L808
3T
ViewSonic Corporation
Confidential – Do Not Copy
VP720-1_VP720b-1
83
Model
Title
Date
Rev:
ViewSonic Corporation
POWER