ViewSonic VA1912w-2 Service Manual Download

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FB0N
FB0P
FB1N
FB1P
FB2N
FB2P

FG0N
FG0P
FG1N
FG1P
FG2N
FG2P

FR0N
FR0P
FR1N
FR1P
FR2N
FR2P

BB0N
BB0P
BB1N
BB1P
BB2N
BB2P

BG0N
BG0P
BG1N
BG1P
BG2N
BG2P

BR0N
BR0P
BR1N
BR1P
BR2N
BR2P

FCKP
FCKN
BCKP
BCKN

BSTH
FSTH
GVOFF
STB
STV
CPV
OE

POL

SAR1
SAR2

LED_GL

LED_OR

DCDC_ON/OFF

GNDR

RIN

GNDG

GIN

GNDB

BIN

SOG

VSYNC

HSYNC

DDCA_CLK

R+
R-
G+
G-
B+
B-
CLK+
CLK-

DDCD_DAT

SAR2

SAR1

DDCA_DAT

DDCD_CLK

WP
WP

DVI

DSUB

DVI

FB0N
FB0P
FB1N
FB1P
FB2N
FB2P

FG0N
FG0P
FG1N
FG1P
FG2N
FG2P

FR0N
FR0P
FR1N
FR1P
FR2N
FR2P

BB0N
BB0P
BB1N
BB1P
BB2N
BB2P

BG0N
BG0P
BG1N
BG1P
BG2N
BG2P

BR0N
BR0P
BR1N
BR1P
BR2N
BR2P

FCKP
FCKN
BCKP
BCKN

BSTH
FSTH
GVOFF
STB
STV
CPV
OE

POL

AUD_DET

VCM_PWM
PANEL_ON/OFF

INV_ON/OFF
INV_ADJ

LED_GL
LED_OR
VOL_ADJ

DCDC_ON/OFF

GNDR

RIN

GIN

GNDG

BIN

GNDB

SOG

VSYNC

HSYNC

DDCA_DAT
DDCA_CLK

R+
R-
G+
G-
B+
B-

CLK+

CLK-

DDCD_DAT
DDCD_CLK

V33C

V18C

V5A

AUDIO_ON

RIGHT

POWER

AUTO

LEFT

TURBO

VCTRL

AUTO
POWER

MENU
LEFT
RIGHT

TURBO

V12A

DVI_5V

DSUB_DET

Vref

AVDD

VDDC

VDPP

AVDD

VPLL

VDVI

VMPLL

GND

VDPP

VMPLL

VDVI

GND

VPLL

GND

AVDD

GND

VDDC

VCC18

VCC33

V5A

GND

VCC33

GND

VCC33

GND

VCC33

GND

VCC33

GND

VCC33

GND

Close to respective power Pins

TURBO

RIGHT
+LEFT
+POWER

1.77V

1.24V

0.47V

AUTO

VOLTAGE

0.47V

POWER

1.77V

LEFT

RIGHT

1.24V

SR1(1.77) SR2(0.93)

need to modify, the SAR is

6 bits and the max voltage

is 1.8V

C89
0603/100n/25V/7

R114

0603/10K/5%

R114

0603/10K/5%

Y1
14.31818MHz

C74

1206/10u/16V/X/PbF

C74

1206/10u/16V/X/PbF

C59
0603/100n/25V/7

R108

0603/10K/5%

R108

0603/10K/5%

VDDC1

C87
0603/100n/25V/7

R112

0603/10K/5%/OPEN

R112

0603/10K/5%/OPEN

R118

R0603/OPEN

R118

R0603/OPEN

C55

1206/10u/16V/X/PbF

C55

1206/10u/16V/X/PbF

C66
0603/100n/25V/7

C75
0603/100n/25V/7

L13

C91

0603/100n/25V/7

C91

0603/100n/25V/7

R214

0603/0R/5%/open

R214

0603/0R/5%/open

C84
1206/4.7u/16V/Y

C90

0603/100n/25V/7

C90

0603/100n/25V/7

C81
0603/100n/25V/7

R113

0603/10K/5%

R113

0603/10K/5%

C78

1206/10u/16V/X/PbF

C78

1206/10u/16V/X/PbF

R213

0603/0R/5%/open

R213

0603/0R/5%/open

C80

1206/10u/16V/X/PbF

C80

1206/10u/16V/X/PbF

RIN0P

GIN0P

SOGIN0

BIN0P

RIN0N

GIN0N

BIN0N

HSYNC0

VSYNC0

REXT

REFP

REFM

SDO

SCK

SCZ

SDI

GPIO_P27/PWM1

PWM1/GPIO_P25

NC/LVACKM/NC

108

XIN

XOUT

RA1P/LVA2P/RA2

109

RA1N/LVA2M/RA3

110

RA2P/LVA1P/RA4

111

RA2N/LVA1M/RA5

112

RA3P/LVA0P/RA6

113

RA3N/LVA0M/RA7

114

CLKAP/LVB3P/LHSYNC

118

CLKAN/LVB3M/LVSYNC

119

CLKBP/LVBCKP/LCK_ODD

120

CLKBN/LVBCKM/LDE

121

NC/LVB2P/NC

122

NC/LVB2M/NC

123

BB1P/LVB1P/BB2

124

BB1N/LVB1M/BB3

125

BB2P/LVB0P/BB4

126

BB2N/LVB0M/BB5

127

NC/LVACKP/NC

107

GA3N/LVA3M/GA7

106

GA3P/LVA3P/GA6

105

GND

RX2P

RX2N

RX1P

RX1N

AVDD_DVI

RX0P

RX0N

RXCKP

RXCKN

GND

116

VDDP

VDDC

MODE[1]

104

MODE[0]

102

VCTRL

VDDP

VDD_OTP

DDCA_SDA/RS232_Tx

DDCA_SCL/RS232_Rx

DDCD_SDA

DDCD_SCL

PWM0/GPIO_P26

AVDD_DVI

VDDC

GPIO_P15/PWM0

PWM2/GPIO_P24

GPIO_P12

RSTN

GPIO_P00/SAR1

GPIO_P01/SAR2

GPIO_P06

GPIO_P07

GPIO_P13

GPIO_P14

GPIO_P16/PWM2

DDCROM_SDA

DDCROM_SCL

RST

GA2P/NC/GA4

100

GA2N/NC/GA5

101

GA1P/NC/GA2

GA1N/NC/GA3

BA3P/NC/BA6

BA3N/NC/BA7

BA2P/NC/BA4

BA2N/NC/BA5

BA1P/NC/BA2

BA1N/NC/BA3

RB1P/NC/RB2

RB1N/NC/RB3

RB2P/NC/RB4

RB2N/NC/RB5

RB3P/NC/RB6

RB3N/NC/RB7

GB1P/NC/GB2

GB1N/NC/GB3

GB2P/NC/GB4

GB2N/NC/GB5

GB3P/NC/GB6

GB3N/NC/GB7

BB3P/NC/BB6

128

BB3N/NC/BB7

ESP

OSP

GPO0

GPO1

GPO2

GPO3

GPO4

GPO5

GPO6

GPIO_P02/SAR3

GPIO_P03

GPIO_P22

GPIO_P23

AVDD_PLL

AVDD_MPLL

VDDP

103

VDDP

115

VDDC

117

AVDD_ADC

GND

TSUM57AK

C92
0603/100n/25V/7

R201

0603/10M/5%/RoHS/OPEN

R201

0603/10M/5%/RoHS/OPEN

R200

0603/10M/5%/RoHS/OPEN

R200

0603/10M/5%/RoHS/OPEN

C56
0603/100n/25V/7

C77
0603/100n/25V/7

R110

0603/100R/5%

R110

0603/100R/5%

C79
0603/100n/25V/7

VPLL1

C68

0603/100n/25V/7

C68

0603/100n/25V/7

L10

R105

0603/100R/5%

R105

0603/100R/5%

R107

0603/10K/5%

R107

0603/10K/5%

C152

0805/10u/6.3V/5/open

C152

0805/10u/6.3V/5/open

R124

0603/390R/1%

R124

0603/390R/1%

C93

0603/22p/50V/N

C93

0603/22p/50V/N

R209

OPEN/R0603

R209

OPEN/R0603

C70

0603/10n/25V/7/RoHS

C70

0603/10n/25V/7/RoHS

VDPP1

GPO51

R109

0603/10K/5%

R109

0603/10K/5%

R115

0603/10K/5%

R115

0603/10K/5%

R116

0603/10K/5%

R116

0603/10K/5%

R127
0603/20K/1%/OPEN

R138

0603/23.2K/1%/OPEN

R138

0603/23.2K/1%/OPEN

C94

0603/22p/50V/N

C94

0603/22p/50V/N

R111

0603/10K/5%

R111

0603/10K/5%

C85
0603/100n/25V/7

R67

0603/12.1K/1%/OPEN

R67

0603/12.1K/1%/OPEN

L12

HCB2012KF-420T40

L12

HCB2012KF-420T40

R212
0603/1K/5%

L14

C65

1206/10u/16V/X/PbF

C65

1206/10u/16V/X/PbF

C76

1206/10u/16V/X/PbF

C76

1206/10u/16V/X/PbF

R140

0603/3.3K/1%/OPEN

R140

0603/3.3K/1%/OPEN

C58
0603/100n/25V/7

C86
0603/100n/25V/7

Q7
MMBT3904-F

C88 0603/100n/25V/7

R117

0603/100R/5%

R117

0603/100R/5%

VMPLL1

CE#

SDO

WP#

VSS

SDI

SCK

HOLD#

VDD

Pm25LV512

R101

0603/100R/5%

R101

0603/100R/5%

SAR11

AVDD1

R1000603/100R/5%

R128

0603/23.2K/1%/OPEN

R128

0603/23.2K/1%/OPEN

C67
0603/100n/25V/7

R137
0603/20K/1%/OPEN

C150

0805/10u/6.3V/5/open

C150

0805/10u/6.3V/5/open

VCC

SCL

SDA

GND

AT24C16AN-10SU-2.7/RoHS

VDVI1

R119

R0603/OPEN

R119

R0603/OPEN

R103

0603/100R/5%

R103

0603/100R/5%

R210

0603/30K/5%

R210

0603/30K/5%

C60
0603/100n/25V/7

R120

0603/10K/5%

R120

0603/10K/5%

C57
0603/100n/25V/7

L11

R102
0603/4.7K/0.1%/RoHS

R122

0603/10K/5%/open

R122

0603/10K/5%/open

R104

0603/100R/5%

R104

0603/100R/5%

R79

0603/20K/1%/OPEN

R79

0603/20K/1%/OPEN

OUT

VDD

VSS

RN5VD40AA/RoHS

R139

0603/12.1K/1%/OPEN

R139

0603/12.1K/1%/OPEN

R106

0603/10K/5%

R106

0603/10K/5%

SAR21

L17

R121

0603/100R/5%

R121

0603/100R/5%

R134

0603/3.3K/1%/OPEN

R134

0603/3.3K/1%/OPEN

ViewSonic Corporation

Model

Title

Date

Rev:

ViewSonic Corporation

Confidential - Do Not Copy

VA1912w-

_VA1912wb-

Scalar

Summary of Contents for VA1912w-2

Page 1: ...ViewSonic VA1912w 2 VA1912wb 2 Model No VS10866 19 Color TFT LCD Display VA1912w 2_VA1912wb 2_SM Rev 1b Aug 2006 ViewSonic 381 Brea Canyon Road Walnut California 91789 USA 800 888 8583 Service Manual...

Page 2: ...claims any warranty of merchantability or fitness for any particular purpose Further ViewSonic reserves the right to revise this publication and to make changes from time to time in the contents hereo...

Page 3: ...ction Control Description 10 4 Circuit Description 16 5 Adjustment Procedure 17 6 Troubleshooting Flow Chart 37 7 Recommended Spare Parts List 45 8 Exploded Diagram and Exploded Parts List 50 9 Block...

Page 4: ...ops immediately Long contact with water may cause discoloration or spots 4 When the panel surface is soiled wipe it with absorbent cotton or other soft cloth 5 Since the panel is made of glass it may...

Page 5: ...ce of the polarizer Surface of the panel is pressed by fingers this may cause MURA Take out the monitor with cushion Take out the monitor by grasping the LCD panel That may cause MURA Place the monito...

Page 6: ...ode Max Typ 36W max 32W typ Power Consumption Active Off Mode Max 2W Audio Amplifier Speaker 1 5 W 2 5W x 2 Tilt 20 to 5 Yes Swivel No Pivot No Ergonomics Height Adjust No OSD Control X 1 2 Yes Physic...

Page 7: ...nalog Separate Video Impedance 75 Ohms Analog Maximum PC Video Signal 950 mV with no damage to monitor Maximum Mac Video Signal 1250 mV with no damage to monitor Sync Signals TTL DDC 2B Compliant with...

Page 8: ...PE with no damage Power Supply Missing Cycle Immunity Shall be able to function properly without reset or visible screen artifacts when cycle of AC power is randomly missing at nominal input Power Su...

Page 9: ...onfidential Do Not Copy VA1912w 2_VA1912wb 2 Timing Table Item Timing Analog Digital 1 640 x 350 70Hz 31 5kHz Yes No 2 640 x 400 60Hz 31 5kHz Yes No 3 640 x 400 70Hz 31 5kHz Yes No 4 640 x 480 60Hz 31...

Page 10: ...ic operation i e there should be no cycling Reaction Time OSD must fully appear within 0 5s after pushing Button 1 Short Cuts Function from the button s 1 Main Menu 2 Adjust Contrast Brightness or To...

Page 11: ...ck will be activated by pressing the front panel control buttons 1 for 10 seconds Locking the power button means that the user won t be able to turn off the LCD while the power button is locked If the...

Page 12: ...H Signal to Noise Ratio 72 dB Frequency response 300 TO 20KHZ Distortion 8 1kHz Vibration There should be no audible vibration with volume at 100 Input signal within 1 Vrms Screen image There should b...

Page 13: ...Screen Image Use the buttons on the front control panel to display and adjust the OSD controls which display on the screen The OSD controls are explained at the top of the next page and are defined in...

Page 14: ...is screen You can toggle between control screens adjust the selected option or exit the screen 4 To adjust the setting press the up or down buttons 5 To save the adjustments and exit the menu press bu...

Page 15: ...and a User Color mode which allows independent adjustment of red R green G and blue B The factory setting for this product is 6500K 6500 Kelvin 9300K Adds blue to the screen image for cooler white use...

Page 16: ...s user guide for instructions on changing the resolution and refresh rate vertical frequency NOTE VESA 1440 x 900 60Hz recommended means that the resolution is 1440 x 900 and the refresh rate is 60 He...

Page 17: ...e screen image Setup Menu displays the menu shown below Language Select allows the user to choose the language used in the menus and control screens Resolution Notice allows the user to enable or disa...

Page 18: ...le with a 30 second setting if a control is not pushed within 30 seconds the display screen disappears OSD Background allows the user to turn the OSD background On or Off Memory Recall returns the adj...

Page 19: ...for green mode requirements and spread spectrum support for EMI management The TSUM17AK incorporates the world s first coherent oversampled RGB graphics ADC in a monitor controller system The oversam...

Page 20: ...ange 3 Firmware Test Patten Burn in Model Refer to Chap3 Hot Keys for Function Control Make sure the F W is the latest version 4 DCC Test Patten EDID program Make sure it can pass test program 5 Windo...

Page 21: ...Gray_Scale_0 100_V64 Test Signal 1280 1024 60Hz Test Pattern Vertical 64 256 Gray Scale Right Left From 0 to 100 White Inspection Item Line Defect Function Defect 15 Function Test Display pattern Item...

Page 22: ...ViewSonic Corporation Figure 1 Figure 2 Figure 3 Figure 4 Figure 5 Figure 6 Figure 7 Figure 8 19 Confidential Do Not Copy VA1912w 2_VA1912wb 2...

Page 23: ...of Print Port to connect Print Port of PC and Print Port of fixture and EDID burn in the same fixture to connect VGA Cable between D sub of fixture and D sub of AD Board of monitor the monitor must b...

Page 24: ...ash The dialog of figure is displayed Device Type is Pm25LV512 then press Step 4 Press Read then enter as below figure then press to down load the program of BIOS bin If down load BIOS that is success...

Page 25: ...f BIOS Checksum below figure is displayed 0x1626 then press Run to execute the BIOS procedure The BIOS procedure is displayed the message Verify OK that the BIOS procedure is successful Step 6 Press D...

Page 26: ...ViewSonic Corporation Step 7 When select ReConnect and press Run then repeat to connect the mode of ISP into next the action of BIOS procedure 23 Confidential Do Not Copy VA1912w 2_VA1912wb 2...

Page 27: ...tor Figure 1 1 2 Put the monitor in the PE bag and seal the bag with tape Figure 2 1 3 Put the cushions on the monitor Figure 3 1 4 Place the monitor into the carton and then put all the accessories i...

Page 28: ...e Stand Assy 1 1 Remove Stand Cover Step 2 Remove the Stand Cover Step 5 Completed Step 3 Loose and remove 4 screws Step 1 Remove the Seat Assy Step4 Remove the Stand Assy ViewSonic Corporation 25 Con...

Page 29: ...hooks to take Bezel and Rear Cover apart Step 1 Loose and remove 2 screws Step 2 Separate Bezel hooks to take Bezel and Rear Cover apart Step 3 Remove Rear Cover Step 4 Completed ViewSonic Corporatio...

Page 30: ...p 1 Remove FFC from OSD Board Step 2 Loose and remove 4 screws Step 4 Remove 2 pieces of Backlight wires Step 3 Lift up LCD module and remove bezel Step 5 Remove 2 pieces of Backlight wires ViewSonic...

Page 31: ...Step 6 Loose and remove 2 screws Step 7 Loose and remove 2 screws Step 8 Loose and remove 4 screws Step 9 Remove the PCBA Cover ViewSonic Corporation 28 Confidential Do Not Copy VA1912w 2_VA1912wb 2...

Page 32: ...d AD Board Step 1 Loose and remove 4 screws Step 2 Remove Lips Board Step 3 Remove 2 pieces of FFCs Step 4 Remove the FFC Step 5 Loose and remove 4 screws ViewSonic Corporation 29 Confidential Do Not...

Page 33: ...Step 1 Place new AD Board And fasten 4 fixed screws Step 3 Insert FFC Step7 Completed Step 4 Insert 2 pieces of FFCs Step 6 Remove AD PCBA Step 2 Fasten 4 fixed screws ViewSonic Corporation 30 Confide...

Page 34: ...Step 5 Insert new Lips Board Step 6 Fasten 4 fixed screws Step 7 Completed ViewSonic Corporation 31 Confidential Do Not Copy VA1912w 2_VA1912wb 2...

Page 35: ...5 Remove OSD Board Step 1 Separate both Audio Cable Step 2 Take OSD Board apart Step 3 Completed ViewSonic Corporation 32 Confidential Do Not Copy VA1912w 2_VA1912wb 2...

Page 36: ...PCB Heatsink Step 1 Place New OSD Board Step 2 Insert Audio cable to connectors of New OSD Board Step 1 Join the PCB Cover Step 2 Fasten 4 fixed screws Step 3 Completed ViewSonic Corporation 33 Confi...

Page 37: ...ws Step 4 Fasten 2 fixed screws Step 5 Insert 2 pieces of Backlight wires Step 6 Insert 2 pieces of Backlight wires Step 7 Join LCD module and remove bezel ViewSonic Corporation 34 Confidential Do Not...

Page 38: ...mbly Step 10 Completed Step 1 Place Rear Cover Step 2 Fasten 2 fixed screws Step 3 Place the Stand Assy Step 8 Fasten 4 fixed screws Step 9 Insert FFC ViewSonic Corporation 35 Confidential Do Not Copy...

Page 39: ...Step 5 Join the Stand Cover Step 6 Join the Seat Assy Step 7 Completed Step 4 Fasten 4 fixed screws ViewSonic Corporation 36 Confidential Do Not Copy VA1912w 2_VA1912wb 2...

Page 40: ...lysis Repair Testing Flash Dots Bright Dot Dark Dot Backlight Light Leakage Mura Image Sticking Brightness spot Particle Dot Defect Check Panel Light On Test Next Step Panel Change Should be Performed...

Page 41: ...ange Power B Change Check Panel Display Noise Beat Display Shut Down Beat Display Flicker No Backlight Display Wave B Panel Change Adapter Change Check Adapter Panel Change Should be Performed to Leve...

Page 42: ...cklight Check PCBA AD B Change Inverter B Change Power B Change Check Panel Check PCBA Panel Change Power B Change Inverter B Change CNT B Change AD B Change Check PCBA VGA cable DVI cable Check Wire...

Page 43: ...ak Line Next Step TEST NG AD B Change Panel Change Horizontal Band Defect C Vertical Band Defect Power Saving Display Abnormal Check PCBA AD B Change Inverter B Change Power B Change Check PCBA AD B C...

Page 44: ...Change OSD B Change AC Power Change DC Power CNT Cable Change Adapter Change Check Adapter Check PCBA Check Wire OSD Cable Inverter B Power B Change OSD B Change DC Power CNT Cable Change Adapter Chan...

Page 45: ...SD B Change D sub cable VGA cable DVI cable BIOS Update Abnormal Loudspeaker Check PCBA Check Wire AD B Change CNT B Change No Voice Voice Loss Abnormal Loud L R Abnormal L R Same Volume Check Loudspe...

Page 46: ...CNT B Change Other Abnormal Display Next Step TEST NG Complete TV Function Display Abnormal Panel Change Should be Performed to Level 3 Repair Panel Change Check PCBA Check Wire TV B Change AV Cable C...

Page 47: ...de z Fuzzy Image Adjust Phase z Image too bright Adjust brightness and contrast by OSD z Image too dark Adjust brightness and contrast by OSD z Irregular image Check the signal connection between the...

Page 48: ...90A2 H05 76 2 mmx76 2 mm Chang Huang VSC_VA1912w 2 Green II DC 00005604 77 D008326 1 16 MENU for A190E2 H05 Complex 1C Yi Ching VSC_VA1912w 2 Caution Card Green II DC 00005606 76 D008373 AJ0A2T3A25 1...

Page 49: ...47 1 17 SCREW M3 P 0 5 mm L 4 mm HW 00000553 42A9930008 2000 18 Screw M3 P1 27 12 5 5 2 Steel HW 00000556 42A9990005 2000 19 SCREW M4 P 0 7 mm L 15 mm HW 00000590 42A9930013 2000 20 SCREW M4 P 0 7 mm...

Page 50: ...4 26 HW 00000555 42A9930014 Screw M3 P0 5 6 Green I 4 27 HW 00000556 42A9990005 Screw M3 P1 27 12 5 5 2 Steel Green I 2 28 C 00004284 40 D004250 Cover Hinge A190A2 H05 ABS PA757N Black J91A11B5 1 29...

Page 51: ...Unit A190A2 Green I 1 20 C 00005686 41 D003772 Cover AD Assy A190A2 SECC without Dvi D Hole Green II 1 21 B 00006727 35 D008185 PCBA for A190A2 A02 T A190A2 A02 T S1 1208 05 Rev 04 Green II 1 22 CB 0...

Page 52: ...een II 1 49 N A 77 D000114 Customer Label for A170E1 H0G Green IVA712 Ver 2 Green II 1 50 N A 78 D001492 Pallet A150X2 T01 Wooden 1150 mmx840 mmx138 mm Green I 0 02 51 C 00004280 40 D004256 Seat Assy...

Page 53: ...0 D004252 STAND ASSY 1 13 C 00004284 40 D004250 COVER HINGE 1 14 C 00004285 40 D004259 SEAT ASSY 1 EXPLODED PARTS LIST VA1912W 2 EXPLODED PARTS LIST VA1912WB 2 ViewSonic Model Number VS10866 Rev 1a Se...

Page 54: ...1 15 N A Different region refer to BOM Customer Label 1 PACKING PART LIST VA1912W 2 ViewSonic Model Number VS10866 Rev 1a Item ViewSonic P N Ref P N DESCRIPTION Q ty 1 N A VA1912W 2 LCD Monitior 1 2...

Page 55: ...poration 9 Block Diagram OSD Key Pad Audio Out D sub Analog Video Speaker AC Power LDO Main Board LIPS Backlight LCD Module DC 5V 5V Signal Audio In DC 12V 12V 3 3V 52 Confidential Do Not Copy VA1912w...

Page 56: ...KP BSTH VCM_PWM DCDC_ON OFF PANEL_ON OFF INVERTER I F B2 V12A INV_ADJ INV_ON OFF V33C V5A VOL_ADJ AUDIO_ON AUDIOR AUDIOR AUDIOL AUDIOL AUD_DET LED_GL B3 VGA RIN GIN BIN VSYNC GNDR GNDG GNDB DDCA_DAT D...

Page 57: ...DC 97 GPIO_P15 PWM0 69 PWM2 GPIO_P24 78 GPIO_P12 20 RSTN 22 GPIO_P00 SAR1 23 GPIO_P01 SAR2 24 GPIO_P06 27 GPIO_P07 28 GPIO_P13 30 GPIO_P14 31 GPIO_P16 PWM2 35 DDCROM_SDA 76 DDCROM_SCL 77 RST 19 GA2P N...

Page 58: ...P5 1210 4 7u 25V 5 RoHS R13 0603 4 7K 5 RoHS R13 0603 4 7K 5 RoHS R11 0603 10K 5 OPEN R11 0603 10K 5 OPEN LP3 FBMJ2125HS420 PbF LP3 FBMJ2125HS420 PbF R182 0603 10K 5 RoHS R182 0603 10K 5 RoHS R19 0603...

Page 59: ...603 100n 25V 7 RoHS C43 0603 100n 25V 7 RoHS 1 2 D9 B240A F D9 B240A F GND 1 VOUT 2 VIN 3 VOUT 4 U6 LM1117MPX 3 3 RoHS U6 LM1117MPX 3 3 RoHS C45 0603 100n 25V 7 RoHS C45 0603 100n 25V 7 RoHS C53 0603...

Page 60: ...r OPEN C15 0603 1n 16V 7 C15 0603 1n 16V 7 L20 0603 0R 5 RoHS L20 0603 0R 5 RoHS C123 0603 47n 16V 7 RoHS C123 0603 47n 16V 7 RoHS R34 0603 56R 1 R34 0603 56R 1 R78 0603 75R 1 R78 0603 75R 1 D29 06032...

Page 61: ...Z1608S221 RoHS R3 0603 249R 1 RoHS R3 0603 249R 1 RoHS 1 2 L1 MPZ1608S221 RoHS L1 MPZ1608S221 RoHS R4 0603 249R 1 RoHS R4 0603 249R 1 RoHS 7 8 5 3 1 2 4 6 LP7 BK32164M121 LP7 BK32164M121 1 3 2 Q14 TP0...

Page 62: ...2 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 CN1 IL FHR F36S HF RoHS CN1 IL FHR F36S HF RoHS 1 1...

Page 63: ...60 ViewSonic Corporation Confidential Do Not Copy VA1912w 2_VA1912wb 2 11 PCB Layout Diagrams...

Page 64: ...61 ViewSonic Corporation Confidential Do Not Copy VA1912w 2_VA1912wb 2...

Page 65: ...62 ViewSonic Corporation Confidential Do Not Copy VA1912w 2_VA1912wb 2...

Page 66: ...roubleshooting 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...

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ViewSonic VA1912w-2, Service Manual

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Summary of Contents for VA1912w-2

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