
CHK PWR
REF: power
flow
No display
(2)
Back-light
ok ?
NO
YES
U7
SCALER
INPUT/OUTPUT
D-SUB
VGA 15PIN
NO
CHK
JP9 INPUT
YES
CABLE
CHK Panel
CONNECTOR
YES
LED always ON
or always OFF
when power on
ok ?
CHK U5
SOCKET
、
SOFTWARE
、
KEY PAD
YES
CHK
JP1 PIN3
、
4
NO
CHK U5
Pin 19
CHK
SOFTWARE
OR
CHANGE U7
CHK
U1
、
U2
NG
OK
YES
CHK LCD-VCC
CHK CLK
CHK R
、
G
、
B SIGNAL
NG
CHANGE
Power board
FLASH
NORMAL
RETURN
OK
REPLACE
U1
、
U2
NG
36
ViewSonic
Corporation
Co
nfidential
-
Do
Not
Copy
Q9-1_Q9b-1
Summary of Contents for Q9-1
Page 18: ...15 ViewSonic Corporation Confidential Do Not Copy Q9 1_Q9b 1...
Page 20: ...3 Special application 17 ViewSonic Corporation Confidential Do Not Copy Q9 1_Q9b 1...
Page 21: ...18 ViewSonic Corporation Confidential Do Not Copy Q9 1_Q9b 1...
Page 22: ...19 ViewSonic Corporation Confidential Do Not Copy Q9 1_Q9b 1...
Page 46: ...43 ViewSonic Corporation Confidential Do Not Copy Q9 1_Q9b 1...
Page 52: ...11 PCB Layout Diagrams IF board 49 ViewSonic Corporation Confidential Do Not Copy Q9 1_Q9b 1...
Page 53: ...50 ViewSonic Corporation Confidential Do Not Copy Q9 1_Q9b 1...
Page 54: ...51 ViewSonic Corporation Confidential Do Not Copy Q9 1_Q9b 1...
Page 55: ...52 ViewSonic Corporation Confidential Do Not Copy Q9 1_Q9b 1...
Page 56: ...53 ViewSonic Corporation Confidential Do Not Copy Q9 1_Q9b 1...
Page 57: ...54 ViewSonic Corporation Confidential Do Not Copy Q9 1_Q9b 1...
Page 58: ...55 ViewSonic Corporation Confidential Do Not Copy Q9 1_Q9b 1...
Page 59: ...56 ViewSonic Corporation Confidential Do Not Copy Q9 1_Q9b 1...
Page 60: ...Key board SOLDER 57 ViewSonic Corporation Confidential Do Not Copy Q9 1_Q9b 1...
Page 61: ...DRILL 58 ViewSonic Corporation Confidential Do Not Copy Q9 1_Q9b 1...
Page 62: ...COMP SILK 59 ViewSonic Corporation Confidential Do Not Copy Q9 1_Q9b 1...
Page 63: ...Top 60 ViewSonic Corporation Confidential Do Not Copy Q9 1_Q9b 1...
Page 64: ...SOLDERMASK 61 ViewSonic Corporation Confidential Do Not Copy Q9 1_Q9b 1...
Page 65: ...Top Mask 62 ViewSonic Corporation Confidential Do Not Copy Q9 1_Q9b 1...