ViewSonic P774B-2NT Series, Service Manual

Page: 45 / 45

DE
G
H_
F
B
+
C404
10UF
C425
0.24/400V
R902
8K2
7.85V
5.1V
H-s
u
b
D910
PS156R
t
PR901
PTCR 9
R617
75K
FR107
D463
+
C100
47UF
IC901 D
68K
4.9V
0V
AB
SW104
C818
12PF
+ C937
1000UF/16V
C835
1500P
Q402
3DA1207T
SYNC-
1
+
+ +
+
T901
80AS774-2-TG
10
7
2
6
3
10
9
1
11
C901
0.47UF/275VAC
R456
470 3W
R422
100
R182
4K7
R135 2K2
R706
330
C838
10
FB802
22PF
IR
F6
3
0
M
Q
420
R
L804
71A55-19-T
F2
C430
470 500V
R939
390K 2W
LM2470TA
IC802 56A551-524
4
8
7
6
9
5
1
3
2
Vcc
Vbb
Ri
Gi
Bi
GND
Bo
Go
Ro
SW901
ZD103
6.2V
Q902
2SC2120
IC802 PIN3
0.6KV
0V
Standy
by
R701
620 1/2W
FR107
D474
5.1V
3.18V
3V
1.9V
11V
6.3V ABL
G-LED
+ C829
47UF/100V
D601
1N4004
FB850
71A55-19-T
+ C433
22UF/100v
73V
12V
C836
10
R858
1M 1/4W
R873
56 1/2W
C422
2.2uF/100V
R108
2K2
4.9V
0V
C908
0.1UF
C874
0.01uF/2KV
IC401 56A573-513
1
2
3
4
27
28
29
30
5
6
7
8
9
10
11
12
13
14
15
16 17
18
19
20
21
22
23
24
25
26
31
32
H-SYNC
V-SYNC
Hlock
HOSCF
GND
Bout
Vcc
SCL
HPLL2
Co
HGND
Ro
PLL1
HPOSF
Hmoire
Hfly
Ref
Comp
Regin
Isense HEHT
VEHT
VOSCF
VAGC
VGND
Vcap
Vout
EWout
Xray
Hout
SDA
VDY
C840
1UF/100V
!
IC901 56A379-504
STR-G5643D
1
2 3
4
5
D
S GND
VC
C
OCP/FB
SYNC+
1
AB
R940
430K 2W
C833
0.1UF
R433
1K
R721
1K 1/4W
R
G
B
CRT
11
6
5 7
8
9
+ C112
NC
+ C111
0.1U
G
EH
T
G1
7V
VER+12V
C420
0.1U
Q403
2SC5929
D911
BAV21
+ C876
100
V-DY
0V
HL
R
703
150 1/4W
C740
0.01uf 500V
R912
10/1W
R713
5K6£[
C419
4700 630V
R131
1K
13.7V
3
5.1V
3.18V
6.28V
5.26V
R741
120K 1/2W
+ C810
47UF
D740
UF4004
R748
8K2
73V
M
u
te G1
!
C446
100
D854
BAV21
C703
0.1UF
R959
10K 1/6W
L803
47 1/4W
D413
1N4148
D604
1N4148
R823 1K
D853
BAV21
2.9V
5.1V
EH
T
C856
0.1/250V
R428
0.75 3W
C131
33PF
R462
47K 1/4W
D912
1N4148
R124
4.7k
R/I
5
R490
11K
R484
4K7
R118
4K7
D101
NC
R418
3K
C741
330
+
C102
47UF
15
68K
IC601 PIN5
D806
1N4148
R820
6K8
R909
100 1/4W
D805
1N4148
R603
12K 1/4W£[
R965
4.7 1/4W
C943
1500
R818
1K
C480
47P 1KV
B
H-OUT
12.5V
D801
1N4148
D850
BAV21
+
C853
1UF
R115
470
!
+ C809
3.3UF
t
NR901 61A-58-8T
NTCR 15
R116
470
+ C910
22UF/50V
Q908
2SC945P
D400
1N5817
H-DY
85Hz
1 9
H-sub
VOUT
R
440
3K
3 1/4W
2%
!
R803
75
!
1K2 1/4W
R904
IC101
NT6865
1
2
3
4
38
39
40
5
36
6
7
8 35
9
10
11
13
14
15
16
17
18
19
20
21 22
23
24
25
26
27
28
29
30
31
32
33
34
37
12
41
42
W/P
MUTE B+
DEG
Reset
CS2
H-LIN
NC
VCC
CS0
V33
GND
OSCO G-LED
OSCI
ISDA
ISCL
VSCL
KEY1
KEY2
NC
NC
NC
NC
VEHT
HEHT NABL
H-sub
Mute G1
DSDA
DSCL
NC
WABL
ROT
R-LED
Stand by
Off
V-out
H-out
CS1
VSDA
H-I/P
V-I/P
D856
BAV20
STV9118
5.1V
2.2V
3.35V
3.3V
HOUT
+ C603
1000UF 16V
R951
470 1/4W
C945
0.1UF
R825 1K
R872
56 1/2W
73V
G1
VOUT
R952
10K 1/6W
R968
160K 1/4W
C416
0.1 50V
L801
47 1/4W
C601
1500PF
68K
52.4V
-11V
2.9V
0V
C828
0.01uF/2KV
R994
20K 1/4W
R618
470 1/4W
R401
100k 1/2W
R130
10K
+ C870
1000P 1KV R405
270
R715
36K£[
R416
15K 1/4W
G/I
CS1
80V
R610
120K
!
R907
560 1W
D804
1N4148
C612
470
R906
22 1/4W
R804
33
R434
2K2
C403
100NF
Q911
IRF634B
R132
100
C871
100UF/16V
R720
5k6
C
607
4700
ZD104
6.2V
220K
1/
4W
R
476
C843
100PF 1KV
FB403
71A55-9
F
B
807
J
U
M
PER
HT
ZD903
20V
R856
51 1/4W
R862
JUMPER
R425
100 1/4W
C611
0.47UF/63V
C960
0.0033UF/500V
R100
10K
FH(KHz)
R880
560K£[ 1/2W
R917
68K
NC
ZD105
C444
0.1UF
+ C432
NC
C834 NC
0.01UF/100V
C107
22/NPO
5.1V
2.2V
3.9V
3.3V
BOUT
CS
2
!
R128
16K
D401
1N4148
D402
1N4148
R855
51 1/4W
C861
NC
R136
4.7K
12.1V
0V
2.8V
B+
Q405
2SA733P
R443
4K7
!
R972
12K 1/4W
D410
IN4148
R814 100
0.35V
2.9V
0V
+
C437
4.7UF
R874
56 1/2W
P802
1 2 3 4 5 6 8 9 10 11 12 13 14 7
+
C609
47UF 50V
CRPC-P774
Q403 C
H-LIN
!
R958
1K 1/4W
R910
91K
R156 2K2
ZD402
JUMPER
R109
2K2
C413
0.1
C613
0.15UF
R914
1 1/2W
G2
12V
G2
FOCUS
Q920
2SA733P
R967
27K
77A260-7-W
RY901
4
3
1
2
+
C713
2.2uF/250V
13
55¡«72
C815
JUMPER
D602
1N4148
C106
1000
+
C806
1UF
5.1V
4.9V
1.7V
2.7V
-12.5V
R103
100
R430
180K 1/4W
R933
10K 1/6W
R607
1.1 1W
F1
0V
6.3V
C824
0.1UF
+
C931
220uF 100V
R857
1M 1/4W
10.6V
1.1V
0V
ZD702
3.6V
+ C944
10uF 50V
LM1246
IC801 56A366-509
1
2
3
4
5
6
7
8
9
10
11
12 13
14
15
16
17
18
19
20
21
22
23
24
VFLY
Vref
Vref
GND
R/V IN
G/V IN
B/V IN
A-GND
PLL
VCC
SDA
SCL DEC 4 OUT
DEC 3 OUT
DEC 2 OUT
DEC 1 OUT
D-GND
VDD
B/V OUT
G/V OUT
R/V OUT
ABL
CLAMP
H-FLY
C858
0.1/250V
C961
0.01UF/400V
R431
6K2 1/4W
R447
1.2K
R612
2K2 1/4W
B/I
58V 5V
68K
+ C907
220UF 400V
G2
R983
10K 1/6W
TP404
WIRE
7
6
MU
T
E
B
+
!
R927
100K 1W
!
R824
1K
C919
1000PF/2KV
Q913
3DG945P
G1
CS1
L405
73A253-69-H
R981
100 1/2W
FB803
22PF
D407
PS156R
HOUT
C435 0.01UF
R815 100 LM2480
IC803 56A539-6
1
2
3
4 5
6
7
8
Ri
Gi
Bi
GND Vcc
Bo
Go
Ro
R614
22
5.1V
4.9V
1.7V
OF
F
Off
C449
0.047
68K
0V
R117
100
+
C803
0.1UF
D916
1N4148
R411
5K6
L802
47 1/4W
D802
1N4148
R930
680 1/4W
C412
100PF 50V
-11.5V
1.1V
0V
12V
M
u
te G1
Vfb
80V
R830
6K2 1%
R460
4K7 1/4W
C873
1000/500V
GND
68K
2.8V
C860
0.1UF 250V
R402
1.2K 1/4W
C406
0.1UF
!
C108
22/NPO
> 72
D863
FR155
C463
0.01 50V
220K
1/
4W
R
478
C409
1000P
D929
UF4004
R969
75K 1/4W
R941
510 1/4W
D939
1N4148
600V
errors or ommissions.
D403
UF4004
P402
1
2
3
4
C415
4700 100V
R908
7.5 1/2W
ZD102 6.2V
+ C483
4.7U
5.1V
3.6V
12V
HREF
R915
100k 1/4W
!
C867
1UF/100V
+ C115
1UF
R821
7K5
!
RN102
4K7
D406
PS156R
R119
10
0V
L850
0.33uH
Q423
C945
5.8V
1.6V
0.7V
1.1V
0V
+ C482
47UF/200V
R120
10
+ C402
47UF/100V
R406
100
R486
4K7 1/4W
R604
5K6 1/4W
2.8V
56 1/4W R903
R157
1K
CS2
1
5V
ABL
0.27UF 250V
C426
E.H.T
R613
1K 1/4W£[
D701
NC
1.14KV
IC401 PIN23 IC401 PIN26
5V
SW102
R107
2K2
C819
12PF
F901
T 4A/250V
P774B3-2
Q911 G
R404
100
C862
NC
R125
47
R412
5K1
FB901
5.1V
-0.4V
HOUT
D411
1N4148
C962
0.0047UF/400V
R615
120K
R104 NC
on
4.3V
2V
SDA
C857
0.1/250V
R749
100K 1/4W
C804
0.1
C710
0.012UF 100V
7V
1.5V
4.6V
0V
R827
6K8
R905
5K1
+ C110
33U/16V
85Hz
82V
Hfb
H_
F
B
C488
68PF/2KV
R901
1M 1/2W
+ C939
470uF/16V
R138
1K
0 1
VD
Y
CS2
+ C877
100
R806
33
R112
4K7
4
V-OUT
R403 100
C130
1000PF
VR902
30K
R429
10 1/2W
C837
10
+
C936
1000uF/25V
IR
F
630M
Q
426
C417
0.22UF
12 11
T402
79A774-1
1
F1
3
F2
EHT
G2
13
7
4
6
14
2
10
9
5
8
+
C854
1UF
85HZ
91K
Q402 G
5.1V
7.9V
RO
T
+
C401
1000UF/16V
C105
1000
C848
NC
D450
1N4148
100K£[ 1/4W
R471
NOTES:
after the date of publication and disclaims liability for changes,
NC
0.6V
EWOUT
VOUT
R929
0.22 2W
FB804
22PF
C101
0.1UF
!
11.9V
1.66V
1.2V
0V
B+
HREF
!
IC401 PIN 4
40V
R751
270
!
L401
73A147-539-H
2 3
5 4
< 41
FB801
71A55-19-T
D603
1N4148
+ C405
470UF
t
NR601
NTCR 45
CPU PIN 41
CS
1
C811
0.033UF
R143
100
C817
12PF
G1
68K
L901
73A174-7-L
1 4
2 3
H802
H_FB
12V
ISDA
GND
ISCL
5V
H_FB
V-out
H-out
6.3V
ABL
G1
80V
GND
R608
10K
IC601 56A574-501
STV9302A
2 6 3
1
7
4
5
VC
C N
VF
-I/P
+I/P
-1
2
V
+O/P
5.1V
Hfb
R436
1K
L910
73A259-4-H
5.12V
THE 50V CAPACITANCE NOT TO LABLE VOLTAGE.
0V
4.6V
C450
1000P
1K
V
R859
1M 1/4W
11.6V
1.56V
0V
R606
120
1/2W
+
C443
47UF
-
+
2A05
D901-D904
1
4
3
2
1.4V
40V
Bout
12V
C912
0.1U
14
41¡«55
D852
BAV21
R-LED
P801
1
2
3
4
5
6
3V
H-LIN
R805
33
D926
1N4148
!
68K
2
V-
out
Q903
3DG945P
R449
6K2
R980
220 1/4W
D925 RG4S
93A3040-8AT
CL
P
C414
0.47UF/ 63V
L906
73A253-88-HB
FB402
71A55-9
R616
15k
THE 1/6W RESISTANCE NOT TO LABEL POWER.
0V
0.8V
R725
240K 1/2W
IC801 PIN21
1.5V
4.9V
1.56V
0V
MUTE B+
6.3V
R432
10K
+ C930
470UF/16V
1.1V
40V
2SC2120
Q904
T403
79A167-124-H
6
1
3
5
4
C602 0.01UF
5.41V
EWOUT
80V
T401
79A167-125-L
1 6
3 4
5
R463
2M 1/4W
+
C802
0.1UF
0.01
C411
Bout
Q406
tip122
D405 1N5817
FB902
C946
0.1UF/250V
FROM
FBT
P774B3-2-01-B
Wednesday, November 24, 2004
P774B3-2
TOP VICTORY ELECTRONICS(FUJIAN)CO.LTD
MODEL: P/N:
Date:
DRAWER
APPROVED
Electric
Engineer
Engineer
Safety
D409
IN4148
R960
47K 1/4W
R129
47
D857
BAV20
C913
100 1KV
Q410
2SC2120
Q403 B
8
SCL
D851
BAV21
+ C826
47UF/16V
C920
470/NPO
ABL
0V
0V
4.4V
12V
B+
HT
R181
2K7
CN903
1 2 3
5.1V
4.8V
4.9V
1.56V
VD
Y
12V
ABL
R410
10 1/2W
68K
IC401 PIN1
1.1V
5.1V
CS ÕæÖµ±í
DE
G
CN901
N
GND
L
!
+ C146
47UF
68K
+ C805
100UF/16V
C963
0.0047UF/400V
C821
0.1UF
+
C801
0.1UF
C608
0.22UF 100V
R605
1 1/2W
+ C947
22UF
10£[ 1/4W
R413
+
C114
1UF
Q705
BF423
1
HL
H803
GND
DSDA
DSCL
VS
HS
5V
Sense
R487
10K
C460
0.1 50V
R127
22K
D420
1N4148
C808
10
+
C
104
100U
F
off
T901 PIN2 This schematic,We cannot guarantee the accuracy of this information,
VER+12V
C864
1UF/100V
R962
47 1/4W
C900
0.47uF/275VAC
100K£[ 1/4W
R419
12.5V
HREF
L852
0.33uH
Q912
2SC945P
5.6v
ZD902
R601
13K
R
611
120K
5.1V
0V
5V
Q905
3CG733P
SW103
R414
2K7
!
12
5.1V
0.4V
3.88V
6.3V
FB903
R726
1N4148
C410
0.1UF
Q411
C945
R126
10K
CN902
1
2
D408
DMV1500M
D855
BAV21
R957
47K 1/6W
R835
10K
1.1V
5.1V
R121
470
SW101
C813
10PF
R426
33 3W
R854
51 1/4W
5.56V
0V
2V
ZD401
R826 10K
C421
4700pF
/500V
R953
10K 1/6W
R982
10K 1/6W
C859
NC
D803
1N4148
R801
75
0
5V
0.01
C429
+
C610
47UF
+
C855
1UF
C614
100
R
441
82K
1/2W
1%
+ C832
1UF 100V
R417
2.7K
RO
T
C875
NC
+ C434
0.47UF
R101
1K
H_FB
11.7V
R106
2K2
D919
31DF4 93A60-73A
R802
75
D914
JUMPER
47K
R415 NC
D404
UF4004
5.1V
0V
Hf
b
C418
4700/1.6KV
0.68UF 250V
C423
R105
100
C447
0.01UF FB805
180 1/4W
L851
0.33uH
+ C113
100UF
5.1V
4.4V
1.09V
Stand by
R133
4K7
D706
FR157S
Q907
HSB772P
R172
100
0.1UF
C407
R966
3K 1/4W
D923 RK36
93A1002-2A
82V
5.1V
C921
0.1UF 100V
C720
1000 500V
Q910
2SC945P
R702
2M 1/4W
R621
27K1/4W
1.9V
0V
C
408
0.1U
C823
0.1UF
10£[ 1/4W
R421
ZD901
5.1V
off
0
-12.5V
+ C605
1000UF 16V
R860
JUMPER
Q909
HSB772P
X101
12MHz
11
R861
JUMPER
R913
1 1/2W
R921
10K 1/6W
R602
3K6
IC102
M24C08-BN6
8
5
6
1
2
3
7
4
VCC
ISDA
ISCL
A0
A1
A2
WP
A4
R444
10K 1/4W
+
C743
10UF 50V
R446
5.6 2W
ZD101
6.2V
C103
0.1UF
R420
51k
5V
68K
CPU PIN 42
12.5V
R134
10K
IC103
24LC21
8
5
6
1
2
3
7
4
Vcc
Dsda
Dscl
A0
A1
A2
WP
A4
R153
4K7
R911
82/1W
D858
BAV20
10
0V
D922
RG4S 93A3040-8AT
R110
100
R848
JUMPER
C941
0.1uF 50V
R111
100
R609
130K 1/4W
R740
56K 1/2W
R879
100 1/2W
Q404
2SA733P
Q742
BF422
5.1V
0.6V
5.3V
1.09V
MAINBOARD:715A1316-*-S1