ViewSonic Va1912wb 3 Service Manual

							
LED_O
LED_G
LED_OLED_G
LED_OR
RIGHTTURBOAUTO
MENULEFT
POWER
LED_GL
AUDIOL-
AUDIOL+
AUDIOR-
AUDIOR+
V33CV33C
V33CV33C
V33C
GND
GND
GNDGND
GND
GND
V33C
Bead Array LP8,LP9,LP11=>modified RoHs
1
3
2
Q15
2N7002/RoHS/OPENQ15
2N7002/RoHS/OPEN
123456789101112131415CN3
HEADER 10_2/RoHSCN3
HEADER 10_2/RoHS
C1
0603/100n/25V/Y/RoHS/OPENC1
0603/100n/25V/Y/RoHS/OPEN
R2
0603/1K/5%/RoHS/OPENR2
0603/1K/5%/RoHS/OPEN
78
53
12
46
LP6 BK32164M121LP6BK32164M121
12L4
MPZ1608S221/RoHSL4
MPZ1608S221/RoHS
12L3
MPZ1608S221/RoHSL3
MPZ1608S221/RoHS
R63
0603/10K/5%/RoHSR63
0603/10K/5%/RoHS
1
3
2
Q12
TP0610K/PbFQ12
TP0610K/PbF
12L2
MPZ1608S221/RoHSL2
MPZ1608S221/RoHS
R3
0603/249R/1%/RoHSR3
0603/249R/1%/RoHS
12L1
MPZ1608S221/RoHS L1
MPZ1608S221/RoHS 
R4
0603/249R/1%/RoHSR4
0603/249R/1%/RoHS
78
53
12
46
LP7 BK32164M121LP7BK32164M121
1
3
2
Q14
TP0610K/PbFQ14
TP0610K/PbF
785
3124
6RP46
0603*4/10K/5%/RoHSRP46
0603*4/10K/5%/RoHS
4
5
3
6
2
7
1
8
CP8
0603*4/100n/25V/RoHSCP8
0603*4/100n/25V/RoHS
C2
0603/100n/25V/Y/RoHS/OPENC2
0603/100n/25V/Y/RoHS/OPEN
R36
0603/1K/5%/RoHS/OPENR36
0603/1K/5%/RoHS/OPEN
785
3124
6RP47
0603*4/10K/5%/RoHSRP47
0603*4/10K/5%/RoHS
4
5
3
6
2
7
1
8
CP7
0603*4/100n/25V/RoHSCP7
0603*4/100n/25V/RoHS
1
3
2
Q13
2N7002/RoHS/OPENQ13
2N7002/RoHS/OPEN
R8
0603/0R/5%/RoHSR8
0603/0R/5%/RoHS
R7
0603/0R/5%/RoHSR7
0603/0R/5%/RoHSR62
0603/10K/5%/RoHSR62
0603/10K/5%/RoHS
58ViewSonic Corporation 
Model
Title
DateRev:
ViewSonic Corporation
  Confidential - Do Not Copy    VA1912w-3_VA1912wb-3 
OSD 
						

							
 59 
ViewSonic Corporation  
11. PCB Layout Diagrams 
 
 
  Confidential - Do Not Copy    VA1912w-3_VA1912wb-3  
						

							
 60 
ViewSonic Corporation    Confidential - Do Not Copy    VA1912w-3_VA1912wb-3  
						

							
 61 
ViewSonic Corporation    Confidential - Do Not Copy     VA1912w-3_VA1912wb-3  
						

							
 62 
ViewSonic Corporation 
    Confidential - Do Not Copy     VA1912w-3_VA1912wb-3 
* Reader’s Response* 
Dear Readers: 
 
Thank you in advance for your feedback on our Servic e Manual, which allows continuous improvement 
of our products. We would appreciate your completion  of the Assessment Matrix below, for return to 
ViewSonic Corporation. 
Assessment
 
A.  What do you think about the cont ent of this Service Manual? 
Unit ExcellentGood Fair Bad 
1. Precautions and Safety Notices     
2. Specification     
3. Front Panel Function Control Description     
4. Circuit Description     
5. Adjustment Procedure     
6. Troubleshooting Flow Chart     
7. Recommended Spare Parts List     
8. Exploded Diagram and Exploded Parts List     
9. Block Diagrams     
10. Schematic Diagrams     
11.PCB Layout Diagrams     
 
B. Are you satisfied with this Service Manual? 
Item Excellent Good Fair Bad 
1. Service Manual Content             
2. Service Manual Layout            
3. The form and listing            
 
C.  Do you have any other opinions or sugge stions regarding this service manual? 
 
Reader’s basic dada:
 
Name:   
Title:  
Company:  
Add:  
Tel:   
Fax:  
E-mail:  
After completing this form, please return it to ViewSonic Quality Assurance in the USA at facsimile 
1-909-839-7943. You may also e-mail any suggestions to the Director, Quality Systems & Processes 
([email protected])