Service manual

ViewSonic Corporation Confidential - Do Not Copy
82
Model
Title
Date Rev:
ViewSonic Corporation
I/F
VR
POL
KEY_DOWN
GVON
STV
LED_O LED_G
KEY_UP
AUTO_ADJ PWR_SW
FSTHIBSTHI
SOURCE_SELECT
CKV
GVOFF
STB
MENU
VCM_PWMOE
AUDIOL+
AUDIOL-
AUDIOR+
AUDIOR-
DCDC_ON/OFF
FCKN
BB2P
BCKP
STV
BB0P
FB1N
FB2N
BB0N
FR1P
FG1N
FG0N
BG0P
FG0P
BB2N
CKV
STB
BB1N
BR0N
BSTHI
FB0P
BG0N
BR2P
FSTHIFSTHI
FG2P
V33D
OE
FB1P
BG1P
BR2N
VCM_PWM
GVON
FB2P
BCKN
BB1P
PANEL_ON/OFF
FG1P
FCKP
FR0P
FR0N
FR1N
BG2P
FB0N
POL
BG2N
FR2P
BR1P
FG2N
BR1N
BR0P
BG1N
GVOFF
FR2N
V33D
V33S
KEY_DOWN
SOURCE_SELECT
KEY_UP
MENU
AUTO_ADJ
PWR_SW
LED_G
LED_O
AUDIOR-
AUDIOR+
AUDIOL-
AUDIOL+
LED_O
LED_G
MUTE 4
VOL_ADJ5
V5A 4
INV_ADJ 5
INV_ON/OFF 4
FR2N5
FR2P5
FG1P5
FB2N5
FB0N5
FB1P5
FB2P5
FG0N5
FSTHI5
DCDC_ON/OFF4
GVON5
BSTHI5
CKV5
BR1P5
FB0P5
BR2N5
BCKN5
BR2P5
BR0N5
BG0P5
FR1N5
BG1N5
BG1P5
PANEL_ON/OFF4
VCM_PWM5
BG2N5
BG2P5
FG2N5
BG0N5
BB0P5
FG1N5
FG0P5
FR1P5
BB1N5
BB1P5
BB2N5
STB5
BB2P5
FB1N5
BB0N5
GVOFF5
BCKP5
BR0P5
BR1N5
FR0N5
OE5
FG2P5
FCKN5
FCKP5
FR0P5
POL5
STV5
V33S 3,5
AUTO_ADJ4
MENU4
KEY_DOWN4
SOURCE_SELECT4
KEY_UP4
PWR_SW4
AUDIO_FUNCTION 4
LED_ORG4 LED_GRN4
V12A
GND_POWER
GND_POWER
GND_POWER
V5A
GND_POWER
GND_POWER
V5A
GND_POWER
V33D
GND_POWER
V5A V33D
V33S
V33S
GND_POWER
GND_POWER
GND_POWER
GND_POWER
GND_POWER
V33S
V12A
V33S V33S
V5A
V5A
GND_POWER
5.0V
(PANEL VCC)
INV_ADJ_INPUT
INV_ON/OFF_INPUT
12V
VOL_ADJ_INPUT
MUTE_INPUT
AUDIO_DISABLE_INPUT
(SCALER VCC)
[INV_GND]
PWR_SW
KEY_UP
LED_G
KEY_DOWN
MENU
SOURCE_SELECT
AUTO_ADJ
LED_O
A
1
B
2
C
3
D
4
D
5
C
6
B
7
A
8
CA
CP1
CA
CP1
R59R59
GND
1
VO(3.3V)
2
VI(5V)
3
VO(3.3V)
4
U6U6
TP
1
AUTO_ADJ1AUTO_ADJ1
R60R60
TP
1
GVOFF1GVOFF1
L5L5
1 2
B2B2
GND
1
VO(3.3V)
2
VI(5V)
3
VO(3.3V)
4
U7U7
R68R68
R71R71
R73R73
C43C43
TP
1
STV1STV1
+
C54
+
C54
C49C49
1 2
B1B1
R69R69
R70R70
7
8
5
3
1
2
4
6
LP2LP2
L4L4
1
32
Q8Q8
1
3 2
Q13Q13
C55C55
TP
1
BSTHI1BSTHI1
TP
1
VCM_PWM1VCM_PWM1
7
8
5
3
1
2
4
6
LP1LP1
C52C52
1 2
B3B3
A
1
B
2
C
3
D
4
D
5
C
6
B
7
A
8
CA
CP2
CA
CP2
C48C48
R62R62
TP
1
LED_O1LED_O1
TP
1
PWR_SW1PWR_SW1
R58R58
1
1
2
2
3
3
4
4
5
5
6
6
7
7
8
8
9
9
10
10
11
11
12
12
13
13
14
14
15
15
16
16
17
17
18
18
19
19
20
20
21
21
22
22
23
23
24
24
25
25
26
26
27
27
28
28
29
29
30
30
31
31
32
32
33
33
34
34
35
35
36
36
CN2CN2
TP
1
FSTHI1FSTHI1
C53C53
1
3 2
Q7Q7
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
CN3CN3
1
3 2
Q12Q12
TP
1
KEY_DOWN1KEY_DOWN1
R66R66
R64R64
TP
1
V5A1V5A1
1 2
D20D20
TP
1
OE1OE1
TP
1
TP14TP14
1 2
B4B4
TP
1
CKV1CKV1
F1F1
TP
1
TP12TP12
1
1
2
2
3
3
4
4
5
5
6
6
7
7
8
8
9
9
10
10
11
11
12
12
13
13
14
14
15
15
16
16
17
17
18
18
19
19
20
20
21
21
22
22
23
23
24
24
25
25
26
26
27
27
28
28
29
29
30
30
31
31
32
32
33
33
34
34
35
35
36
36
CN1CN1
C46C46
C44C44
C45C45
TP
1
TP13TP13
R72R72
R63R63
TP
1
LED_G1LED_G1
TP
1
MENU1MENU1
1
32
Q9Q9
C50C50
R67R67
1
32
Q10Q10
R61R61
TP
1
KEY_UP1KEY_UP1
1
32
Q11Q11
R57R57
TP
1
STB1STB1
C42C42
TP
1
POL1POL1
TP
1
GVON1GVON1
L2L2
1 2
B6B6
1 2
B5B5
R56R56
C47C47
12
C41C41
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
CN4CN4
R65R65
C51C51
C40C40
TP
1
V12V1V12V1
L3L3
VX2245wm-1