ViewSonic Va1903wb2 Service Manual

							 
- 61 – 
ViewSonic Corporation            
 Confidential - Do Not Cop                VA1903wb/VA1903wm 
VA1903wb EPL Part List 
ITEM DESCRIPTION  PART  NUMBER QTY 
1 BEZEL A34G0245B4Z  L 1 
2  PAENL HSD190MGW1-A02 HSD 750GLH90GW121N  1 
3 FUNC.BUTTON  33G5019 KD  C 1 
4 G1899-1A-VS-X-3-061214  PWPC942HV1J  1 
5  SCREW  Q1G 330  8120   4 
6  MAIN FRAME HYDIS  J15G0188  1  1 
7 KEPC BOARD  KEPC6AAG 1 
8 SCREW  Q1G1140 10120 2 
9 Q4*8  Q1G1740  8120 1 
10  SCREW   M1G1740  8120  2 
11  SCREW   Q1G 330  8 47 CR3  1 
12 BASE  A34G0028 4Z  L 1 
13 STAND  A34G0247 4Z  L 1 
14 HINGE COVER  A34G0248 4Z  L 1 
15  SCREW  M1G2640 12 47 CR3  4 
16  HINGE  J37G0090  1  1 
17 VESA RUBBER  J12G 808  2 4 
18  REAR COVER  A34G0246 4Z 2L  1 
19  SCREW M3X5  M1G 130  5120  4 
20  SCREW  M1G1140  6120  1 
21  M3*6  M1G1730  6120  6 
22 G2467-B-X-X-1-20061121  CBPC6HM9VSA2 1 
23  VSC17-LCD FRONT LOGO  23G3178709 3A  1 
24  VSC17-LCD FRONT LOGO  23G3178709 4A  1 
  
						

							 
- 62 – 
ViewSonic Corporation            
 Confidential - Do Not Cop                VA1903wb/VA1903wm 
Packing For Shipping 
  
						

							 
- 63 – 
ViewSonic Corporation            
 Confidential - Do Not Cop                VA1903wb/VA1903wm 
Packing Part List  
ITEM  DESCRIPTION  PART  NUMBER  QTY 
1 CARTON J44G9012709 1A 1 
2 HANDLE1/2 J50G 600  5/6 1 
3 PE  BAG  45G  76 28 V3A  1 
4 CD  MANUAL  J70G1902709 1A  1 
5 QSG J41G7802709 1A 1 
6 EPE   COVER  J45G  88606  R  1 
7 MONITOR T96HM9DD1WVSNJ 1 
8 PE  BAG  J45G  88626  1   R  1 
9 EPS J44G9012  1/2 1 
10 POWER CORD  89G414A18N LS  1 
11 SIGNAL  CABLE  89G 728HAA902  1 
12 BASE   A34G0028E4Z  L  1 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
  
						

							 
- 64 – 
ViewSonic Corporation                 
 Confidential - Do Not Cop                          VA1903wb/VA1903wm 
9. Disassemble Process 
 
9.1 Units Disassemble Process 
 
9.1.1 Tools 
—
 Glove 
 
— Big cross screwdriver 
 
— Small cross screwdriver 
 
—  Prize equipment or abandoned IC card 
 
— Screw box 
 
— Cushion 
 
—  Six angle sleeve spanner 
 
9.1.2 Disassemble process 
 
1、  Tide up the worktable, spread straight cushion, put the monitor on it, the front side 
adown.(Picture 1) 
2
、  Remove the decorate slice of the back cover.(Picture 2, 3) 
3
、  Disassemble the 4 screws that fix the stand, remove the stand.(Picture, 4) 
4
、  Disassemble the 1 screws of the back cover.（Picture 5） 
5
、  Use equipment or abandoned IC card to prize up the bezel through the bottom flute, 
and rip up the bezel downwards.( as showed in the following the picture 6,7,8) 
6
、  Disassemble the 4 screws and 3 pins of the Key board, remove the Key board. ( as 
showed in the following the picture 9,10) 
7
、  Remove the back cover, refer to the following picture 11,12. 
8
、 Peel of the 2 AL foil and disassemble the 4 pins, as showed in the following the 
picture 13,14,15. 
9
、 Disassemble the 4 fixed screws of the panel, as showed in the following the 
picture16,17 
10
、 Lift up the main frame, and press down according to the direction of small arrowhead, 
then lift down the LVDS connectors according to the direction of big arrowhead, refer 
to the following picture 18,19. 
11
、 That’s all. The disassemble process of the unit is over. 
 
 
 
 
 
 
 
 
 
  
						

							 
- 65 – 
ViewSonic Corporation                 
 Confidential - Do Not Cop                          VA1903wb/VA1903wm 
9.1.3  Show pictures： 
 
 
 
 
 
 
 
 
 
 
 
 
（
Picture 1）                                 （Picture 2）                       
 
 
 
 
 
 
 
 
 
 
 
（
Picture 3）                                  （Picture 4） 
 
 
 
 
 
 
 
 
 
 
 
 
（
Picture 5）                               （Picture 6） 
  
						

							 
- 66 – 
ViewSonic Corporation                 
 Confidential - Do Not Cop                          VA1903wb/VA1903wm 
 
 
 
 
 
 
 
 
 
 
 
（
Picture 7）                                （Picture 8） 
 
 
 
 
 
 
 
 
 
 
 
 
（
Picture 9）                                （Picture 10） 
 
                                                           
 
 
 
 
                                     
                                  
 
 
 
  
                                    
（
Picture 11）                             （Picture 12）   
  
						

							 
- 67 – 
ViewSonic Corporation                 
 Confidential - Do Not Cop                          VA1903wb/VA1903wm 
 
 
 
 
 
 
 
 
 
 
（
Picture 13）                             （Picture 14）   
 
 
 
 
（
Picture 15） 
 
 
 
 
 
                                                   
                                           
 
（
Picture 16） 
 
 
（
Picture 17） 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
（Picture 18）                               （Picture 19）  
						

							 
- 68 – 
ViewSonic Corporation                 
 Confidential - Do Not Cop                          VA1903wb/VA1903wm 
 
 
 
 
 
 
 
        
（
Picture 20） 
 
  
						

							 
- 69 – 
ViewSonic Corporation                              
 Confidential - Do Not Cop                                        VA1903wb/VA1903wm 
10. 
Block Diagram
 
  
						

							 
- 70 – 
ViewSonic Corporation                              
 Confidential - Do Not Cop                                        VA1903wb/VA1903wm 
     11. Schematic Diagram 
11 . 1   To p
 
  
715G2467-A for VA1903WM
A
1 Contents
C
15 F riday ,  N ov em ber 24,  2006 Ti t l e
Size D oc um ent  N umber Rev
D at e: Sheet
of
G2467-B-X-X-1-20061124
+5V
B5
5.PANEL INTERFACE
VLC D
PA[ 0. . 9]PB[ 0. . 9]
+12V
VCC3.3
B33. INP UT
RINGINBI NVSY N CGNDRGNDGGNDBDET_VGAHSY NCSOG
DDCA_SDADDCA_SCL
+5V
DDC_WP
VCC3.3
PA[ 0. . 9]
+5V
+5V
B44.S CALERRINGI NSOGBINGNDRGNDGGNDBHSY NCVSY NCAdj_BAC KLI GH T
VCC1.8VCC3.3PA[ 0. . 9]
DDCA_SDADDCA_SCLDET_VGAon_BAC KLI GH Ton_Panel
+5VPB[ 0. . 9]+12V
DDC_WPAdj_BL2
LVDS OUTPUT
VLC D
XGA/SXGA/WSXGA
TSUM16AL-1  SCHEMATIC
VC C1. 8
+12V
B22. P OW ER
on_Panel
on_BAC KLI GH TAdj_BAC KLI GH T
VCC1.8
VLC D
+5VVCC3.3+12V
Adj_BL2
VCC1.8
VLC D
PB[ 0. . 9]