ViewSonic N1900w-1E Service Manual Download Page 48

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. Schematic Diagrams

8.1. DVI Interface

for write portect disable

for V.S. customer EDID
need use 24C22

for write portect control

GDC5V

RX0+

RX1-

RX2-
RX2+

DVI_SDA

DVI_SCL

RX1+

GVCK

GSCL

GSDA

RX0-

RXC+

RXC-

RX2+

RX2-

RX1-

RX0-

RX0+

RXC+

RXC-

HPDCTRL

DVI_SDA

DVI_SCL

RX1+

DVI_EDIDWP

5V_STB

P4,6,9,10

5V_STB

GVCC

GDC5V

GVCC

5V_STB

C102

10P/ESD

SOT

Q101

MMBT3904

D104

MLL5232B 5.6V

C101

10P/ESD

R115

10R

R104

100R

R114

10R

I101
24C21/SMD/DIP

1
2
3

NC1
NC2
NC3

GND

SDA

SCL

VCLK

VCC

R110

10K

R102

4.7K

R140

R111

4.7K

R112

10R

P101

DVI-24

1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24

C1
C2
C3
C4
C5
C6

DATA2-

DATA2+

DATA2/4_SHLD

DATA4-

DATA4+

DDC_CLK

DDC_DATA

A_VSYNC

DATA1-

DATA1+

DATA1/3_SHLD

DATA3-

DATA3+

+5V

GND

H_PLUG_DET

DATA0-

DATA0+

DATA0/5_SHLD

DATA5-

DATA5+

CLK_SHLD

CLK+

CLK-

SHELL1

SHELL2

A_RED

A_GREEN

A_BLUE

A_HSYNC

A_GND1
A_GND2

NC1

NC2

D101
LL4148

R109

10R

D102
LL4148

R103

4.7K

R108

10R

C103

0.1U

R107

10R

R101

4.7K

R106

10R

R113

10R

R105

100R

ViewSonic Corporation

Confidential - Do Not Copy

N1900w-1E

Summary of Contents for N1900w-1E

Page 1: ...Service Manual ViewSonic N1900w 1E Model No VS11243 1E 19 LCD TV N1900w 1E_SM Rev 1a Nov 2006 ViewSonic 381 Brea Canyon Road Walnut California 91789 USA 800 888 8583 ...

Page 2: ...nd specifically disclaims 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 hereof without obligation of ViewSonic to notify any person of such revision or changes Trademarks Optiquest is a registered trademark of ViewSonic Corporation ViewSonic is a registered ...

Page 3: ...cuit Description 17 5 Adjustment Procedure 25 6 Trouble Shooting Flow Chart 41 7 Block Diagram 44 8 Schematic Diagrams 45 9 PCB Layout Diagrams 56 10 Exploded Diagram And Exploded Parts List 62 11 Recommend Spare Parts List 65 ViewSonic Corporation Confidential Do Not Copy N1900w 1E ii 2 Specification 4 ...

Page 4: ...rn off power supply when inserting or disconnecting from input connector 3 Wipe off water drop 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 break or crack if dropped or bumped on hard surface 6 Since CMOS LSI is used in this module take care of stat...

Page 5: ...rect Methods Incorrect Methods Only touch the metal frame of the LCD panel or the front cover of the monitor Do not touch the surface of the polarizer Surface of the LCD panel is pressed by fingers and that may cause Mura Take out the monitor with cushions Taking out the monitor by grasping the LCD panel That may cause Mura ViewSonic Corporation Confidential Do Not Copy N1900w 1E 2 ...

Page 6: ...nd soft foam pad Placing the monitor on foreign objects That could scratch the surface of the panel or cause Mura The panel is placed facedown on the lap That may cause Mura ViewSonic Corporation Confidential Do Not Copy N1900w 1E 3 ...

Page 7: ...ied video cards in the primary mode and after user adjustment b No image drift or lose fine tune settings due to panel temperature change 2 Signal Interface External Connector Specification AC In AC Jack 3 male receptacle RGB Input Molded over shielded 15 pin subminiature D male plug with75Ω impedance Compliance with PC 99 Color Theme Refer to Appendix B for pin layout DVI PC or HDCP Input digital...

Page 8: ...ut Speaker Power Output Max Rating 2 5 W x 2 at 10 T H D Distortion 2 5 W x 2 at 10 T H D Distortion Speaker Impedance 4 Ω 4 Ω Line In Per Tuner Spec 500 mV rms Typ 1V rms Max Line Out NA NA Flatness of Amplitude Response 100Hz 10KHz 3 dB at 1KHz 1W 3 dB at 1KHz 1W Total Harmonic Distortion 1KHz 1W 2 1 Signal to Noise 1KHz 1W 30 dB min 35 dB min Stereo Separation 20Hz 20Khz MONO 40dB at 100Hz 10 k...

Page 9: ...age Altitude 0 to 12 000 meters Analog Item Timing Separated Composite SOG Digital TMDS Remark 1 640 x 350 70 Hz 31 5 KHz 2 640 x 480 60 Hz 31 5 KHz 3 640 x 480 72 Hz 37 9 KHz 4 640 x 480 75 Hz 37 5 KHz 5 720 x 400 70 Hz 31 5 KHz 6 800 x 600 56 Hz 35 1 KHz 7 800 x 600 60 Hz 37 9 KHz 8 800 x 600 72 Hz 48 1 KHz 9 800 x 600 75 Hz 46 9 KHz 10 832 x 624 75 Hz 49 7 KHz 11 1024 x 768 60 Hz 48 4 KHz 12 10...

Page 10: ...menu CH Up Channel up when source is at TV or select a control while in OSD menu ENTER To highlight a control in OSD menu Power button Remote control receiver Power LED indicator Note 1 Press VOL and MENU buttons at the same time to lock power button and press VOL and MENU buttons again to unlock it 2 Press VOL and VOL buttons at the same time to lock OSD menu and press VOL and VOL buttons again t...

Page 11: ...VI support HDCP or PC Connect external audio to this port Audio Input for AV left right Connect external audio to this port left right Composite Video Input Connect this port to the RCA output connectors of your A V device SCART Input Connect the external video devices such as VCR DVD and video game into this jack RF Antenna Cable TV Input Connect to the antenna or cable service F E C D B H G A D ...

Page 12: ...Remote Control ViewSonic Corporation Confidential Do Not Copy N1900w 1E 9 ...

Page 13: ...R UP DOWN LEFT RIGHT Navigate and adjust OSD function ENTER Enter the function setting I MENU On Screen Display OSD menu ON OFF J CH and CH Adjust Channel UP DOWN K MUTE Volume mute ON OFF L INFO Display current information M SLEEP Set TV sleep timer N SOUND Select Sound modes O TELETEXT FUNCTION CONTROL button Please refer to page 10 11 Remote control button function as follow Teletext function c...

Page 14: ...n you press this button in teletext mode a CURSOR appears This cursor rectangular box contains a page number and you can select the desired page simply by using the four colours RED button Move cursor down GREEN button Move cursor up YELLOW button Change from current page to selected page BLUE button Exit the CURSOR Mode LIST button Press this button you force the Teletext to LIST Mode It means th...

Page 15: ...sing Normal Warm or Cool Picture Mode To select picture mode by pressing User Standard Movie or Game Note You can adjust the levels of Contrast Brightness Colour Tint and Sharpness only when the Picture Mode is set to User Picture Menu It is active in TV SCART AV source Sound Menu When the input source is TV When input source is PC SCART AV or DVI OSD Functions ViewSonic Corporation Confidential D...

Page 16: ...pressing ENTER Kindly suggest you auto scan all the channels before watching your TV for the ﬁrst time Note After auto scan all the channels you need not to do it again when turning on your Multimedia TV Display next time System Select To select TV system signal input ALL BGH I D K L or L Channel Skip To skip the channel Use to select the channel you want to skip and use to select Skip or Keep TV ...

Page 17: ... Press ENTER to get into Manual Store 2 Move your cursor with to Search and search the detectable channels with 3 Move the cursor with to System and select the system ALL BGH I D K L L according to your local area with When selecting ALL L and L are not included 4 Move to CH NO with and use to select the desired channel 5 Move to Store with then Store the instruction with ENTER Note The channel wi...

Page 18: ...ormal SCART function please select OFF Note The CANAL function is available only when the input source is SCART Language To select the language of OSD with OSD H Position To adjust the horizontal position of OSD OSD V Position To adjust the vertical position of OSD OSD Time Out To set up the display time of OSD 15 30 45 and 60 seconds Memory Recall To recall factory setting condition Press ENTER t...

Page 19: ...on of video H Size To adjust the delay time between horizontal synchronous signal and video Fine Tune To adjust delay time of phase in order to reduce the noise of picture Colour Adjust To adjust colour temperature PC Menu It is only active in PC and DVI support PC mode 1 Press or to get into Colour Mode 2 Use to select between Normal Warm Cool and User 3 When select User it allows you separately ...

Page 20: ...put Reference ground for analog green input from channel 0 Pin 28 BIN0P Analog Input Analog blue input from channel 0 Pin 27 BIN0M Analog Input Reference ground for analog blue input from channel 0 Pin 26 RIN1M Analog Input Reference Ground for Analog Red Input from Channel 1 Pin 25 RIN1P Analog Input Analog Red Input from Channel 1 Pin 24 GIN1M Analog Input Reference ground for analog green input...

Page 21: ...ose Input Output 4mA driving strength Pin 48 GPIO_P22 I O w 5V tolerant General Purpose Input Output 4mA driving strength Pin 49 GPIO_P11 I2C_MDA I O w 5V tolerant General Purpose Input Output 4mA driving strength I2C Master Data 4mA driving strength Pin 50 GPIO_P10 I2C_MCL I O w 5V Tolerant General Purpose Input Output 4mA driving strength I2C Master Clock 4mA driving strength Pin 51 PWM2 GPIO_P2...

Page 22: ...128 XIN Crystal Oscillator Input Xin Pin 122 XOUT Crystal Oscillator Output Xout Pin 123 Power Pins Pin Name Pin Type Function Pin AVDD_DVI 3 3V Power DVI Power Pin 8 14 AVDD_ADC 3 3V Power ADC Power Pin 16 AVDD_MPLL 3 3V Power MPLL Power Pin 124 VDDP 3 3V Power Digital Output Power Pin 41 64 69 73 83 93 113 VDDC 1 8V Power Digital Core Power Pin 42 66 84 103 GND Ground Ground Pin 1 2 5 11 35 36 6...

Page 23: ... Output Pin 1 BOUT OUT VSUP5 0BE Analog Blue Output Pin 2 VRD OBL Reference Voltage for RGB DACs Pin 3 XREF OBL Reference Current for RGB DACs Pin 4 VSUP3 3BE SUPPLY OBL Supply Voltage Analog Video Back end 3 3 V Pin 5 GND SUPPLY OBL Ground Platform Pin 6 GND SUPPLY OBL Ground Platform Pin 7 VSUP3 3IO SUPPLY OBL Supply Voltage I O Ports 3 3 V Pin 8 VSUP3 3DAC SUPPLY OBL Supply Voltage Video DACs 3...

Page 24: ...log Audio 3 Input Left Pin 119 AOUT2R OUT LV Analog Audio 2 Output Right Pin 120 AOUT2L OUT LV Analog Audio 2 Output Left Pin 121 AOUT1R OUT LV Analog Audio 1 Output Right Pin 122 AOUT1L OUT LV Analog Audio 1 Output Left Pin 123 SPEAKERR OUT LV Analog Loudspeaker Output Right Pin 124 SPEAKERL OUT LV Analog Loudspeaker Output Left Pin 125 VREFAU OBL Reference Voltage Audio Pin 126 VSUP8 0AU SUPPLY ...

Page 25: ...put Pin 36 RSTQ OUT LV Internal CPU Reset Output Pin 97 PSENQ OUT LV Program Store Enable Output Pin 20 PSWEQ OUT LV Program Store Write Enable Output Pin 51 XROMQ IN OBL External ROM Enable Input Pin 52 EXTIFQ IN LV Enable External Interface Input Pin 24 STOPQ IN LV Stop CPU Input Pin 25 ENEQ IN LV Enable Emulation Input Supply Pins VSUP1 8DIG Supply Voltage 1 8 V This pin is main and standby sup...

Page 26: ... F output 1 GND M1 M2 M3 M4 Mounting Tags Ground AUDIO I603 TPA2008D2 The TPA2008D2 is third generation 5 V class D amplifier from Texas Instruments Improvements to previous generation devices include dc volume control lower supply current lower noise floor higher efficiency smaller packaging and fewer external components Most notably a new filter free class D modulation technique allows the TPA20...

Page 27: ...ut for right channel ROSC Pin 11 I A resistor connected to the ROSC terminal sets the oscillation frequency in conjunction with COSC For proper operation connect a 120 kW resistor from ROSC to ground ROUTN Pin 17 O Negative output for right channel ROUTP Pin 20 O Positive output for right channel SHUTDOWN 3 I Places the amplifer in shutdown mode if a TTL logic low is placed on this terminal normal...

Page 28: ...splay must be power ON for at least 30 minutes at full white pattern before starting alignments This is especially critical in color temperature and white balance adjustments C Video reference the front detail specifications I EEPROM INIT A Power OFF LED Orange then Press UP ENTER and POWER key When Power on Press MENU key go to factory mode B Press ENTER key to do EEPROM INIT C When EEPROM INIT f...

Page 29: ... returned LCD TV please check whether the firmware version is the latest If not please do the following procedures to upgrade it to the latest version 1 Prepare N1900W E ISP Board in hand first 2 Plug in the ISP Board into your PC Printer Port then switch the PC on to stand by Install Printer Port Driver and then install Setup_LptDrv_v020201_XP_2000 After installation is completed make sure you re...

Page 30: ...ear cover of the LCD TV Note that the LCD TV monitor must be lighted on now 4 Run the exe file under the path of C Program Micronas LptDrv LptDrvTest from your PC If the following screen appears then the ISP Printer Port Device is functioning normally ViewSonic Corporation Confidential Do Not Copy N1900w 1E 27 ...

Page 31: ...3 2 3b8h exe After installation is completed you can see the exe file under Windows O S C program micronas visual I2C program 6 After the ISP I2C is installed you can run the C VCTI vct49xyi_start vi2c exe program under VCTI menu ViewSonic Corporation Confidential Do Not Copy N1900w 1E 28 ...

Page 32: ...8 When the above picture appears click on the Bootloader Item with your mouse cursor and the following screen will appear Keep running the Bootloader Item until the LCD TV screen disappears all at once and then you can enter ISP Mode ViewSonic Corporation Confidential Do Not Copy N1900w 1E 29 ...

Page 33: ...choose the location of Load Bin File as follows 11 When the following screen appears the program is being burend in about 2 5 min and the program is updated When you receive the returned monitor please check whether the firmware version is the latest If not please do the following procedures to upgrade it to the latest version ViewSonic Corporation Confidential Do Not Copy N1900w 1E 30 ...

Page 34: ...orm to the LCD TV you have to do the DDC key in 5 1 Equipment Needed N1900W E LCD TV DDC Card PC RS 232 cable Barcode Reader VGA Cable N1900W E LCD TV DDC Card PC RS 232 Cable VGA Cable MALE Barcode Reader 5 2 Setup Procedure 5 2 1 Connect VGA Card and DDC Card with RS 232 cable ViewSonic Corporation Confidential Do Not Copy N1900w 1E 31 ...

Page 35: ...Cable 5 2 4 Connect Power Cord to N1900W E LCD TV 5 3 DDC Key In Procedure 5 3 1 Run DDC exe 5 3 2 Choose model number and conform the Time then Press ENTER key 5 3 3 When appear the PIC choose DDC Card Press ALT 2 Enter DDC 2B test interface Choose DDC Card ViewSonic Corporation Confidential Do Not Copy N1900w 1E 32 ...

Page 36: ...DAT N1900W E DAT press ENTER key 5 3 5 Press F9 enter the download interface 5 3 6 Key in the serial number or use the barcode reader to scan the barcode of the LCD TV and press ENTER key ViewSonic Corporation Confidential Do Not Copy N1900w 1E 33 ...

Page 37: ...key to continue 5 4 Check Method Use ViewSonic EDID Editor Connect the N1900W E LCD TV to PC with VGA Cable Execute the EDID Editor then Press Ctrl F5 If the DDC is correct you can see the information as follow ViewSonic Corporation Confidential Do Not Copy N1900w 1E 34 ...

Page 38: ...eal the bag with tape Figure 2 3 1 3 Put the cushions on the LCD TV Figure 4 1 4 Place the LCD TV into the carton and then put all the accessories into the carton At last close the carton and seal it with tape Figure 5 Figure 5 Figure 4 Figure 1 Figure 2 Figure 3 User s Guide RF Cable REMOTE CONTRL Power Cord Cable BATTERY ViewSonic Corporation Confidential Do Not Copy N1900w 1E 35 ...

Page 39: ...6 DC 00008124 2001131655P OWNER GUIDE 1 7 DC 00008125 2002310610P GUARANT CARD QSG 1 8 CB 00008069 2427761803P SCART CABLE 1 A 00006133 2427130047P AC POWER CORD 1 A 00005877 2427130101P AC POWER CORD 1 10 CB 00006023 2427751801P RF CABLE 1 11 N A 2005100400P BATTERY 2 12 A 00008048 2419200071P REMOTE CONTRL 1 13 P 00008125 2011119521P CARTON BOX 1 14 N A 2055632230P LABEL 1 PACKING PART LIST N190...

Page 40: ...e 1 Disassembly of Front Cover Rear Cover and Speaker 1 1 Unscrew 2 screws to detach Front Cover from LCD TV 1 2 Unscrew 8 screws to detach Rear Cover from LCD TV ViewSonic Corporation Confidential Do Not Copy N1900w 1E 37 ...

Page 41: ...rom LCD TV 2 1 Unscrew 4 screws that secure Stand Unit 3 Disassembly of Power Board Main Board Keypad Board and Panel Unit 3 1 Unscrew 5 screws to remove Bracket Fix Stand ViewSonic Corporation Confidential Do Not Copy N1900w 1E 38 ...

Page 42: ...3 2 Unscrew 10 screws to remove Shielding Plate Shielding Plate ViewSonic Corporation Confidential Do Not Copy N1900w 1E 39 ...

Page 43: ...in Board and Power Board 3 3 Lay Panel Unit facedown and unscrew 4 screws on its right and left sides to remove Panel Unit and Keypad Board Main Board Panel Bracket Keypad Board Panel Unit Power Board ViewSonic Corporation Confidential Do Not Copy N1900w 1E 40 ...

Page 44: ...L602 Check P503 R539 R540 Check P603 R634 R636 Check P501 R618 R620 Check I207 Pin117 Pin11 8 Check I207 Pin115 Pin11 6 Check I207 Pin113 Pin11 4 Check I207 Pin123 Pin12 4 Check 12V L601 L602 Check P601 Pin1 2 3 4 Yes Yes Yes No No No No No No No Yes Yes Yes Check Speaker W901 Yes ViewSonic Corporation Confidential Do Not Copy N1900w 1E 41 ...

Page 45: ...e Keypad Replace I303 I307 Check D821 12V D822 5V Check P301 5V 12V Check 3 3V I305 I306 Check 1 8V 8V Check Keypad Yes Yes Yes No No No No Replace Main board Yes Replace Power board No ViewSonic Corporation Confidential Do Not Copy N1900w 1E 42 ...

Page 46: ... working Check I207 has output singnal at RP21 22 Check P401 Pin28 30 5V Yes Yes Yes No No No No No No Check LVDS Cable LCD Panel Yes SCART Check P503 C531 C534 Check I207 Pin61 Pin67 69 No DVI Check R104 R115 Check I401 Pin3 6 9 12 P127 128 Check crystal X401 Check I401 RST Replace X401 Replace I401 No Yes Yes No No Yes Yes Yes Yes ViewSonic Corporation Confidential Do Not Copy N1900w 1E 43 ...

Page 47: ...01 RF TUNER use I502 HEF4069UB I305 1117 3 3V I401 TSUM66AVHJ 1 Video Image I401 SUM66AVHJ 1 Video Image I401 SUM66AVHJ 1 Video Image I203 1117 1 8V I207 VCTI 49xyl use I201 1117 3 3V I207 VCTI 49xyl use I204 24C32 EEPROM I206 24C04 VPANEL 5V I404 AM9435 PANEL VCC use VI 0 7 CSZ SCL VCLK I204 24LC32 EEPROM I2C BUS MSDA MSCL RXE0 RXE0 RXE1 RXE1 RXE2 RXE2 RXE3 RXE3 RXEC RXEC I210 39VF040 Flash Memor...

Page 48: ... R104 100R R114 10R I101 24C21 SMD DIP 1 2 3 4 5 6 7 8 NC1 NC2 NC3 GND SDA SCL VCLK VCC R110 10K R102 4 7K R140 NC R111 4 7K R112 10R P101 DVI 24 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 C1 C2 C3 C4 C5 C6 27 28 DATA2 DATA2 DATA2 4_SHLD DATA4 DATA4 DDC_CLK DDC_DATA A_VSYNC DATA1 DATA1 DATA1 3_SHLD DATA3 DATA3 5V GND H_PLUG_DET DATA0 DATA0 DATA0 5_SHLD DATA5 DATA5 CLK_SHL...

Page 49: ... RXEC P5 RXE1 P5 RXO0 P5 RXO0 P5 RXE3 P5 RXO2 P5 RXO1 P5 RXO2 P5 RXO3 P5 RXOC P5 RXOC P5 RXO1 P5 RXO3 P5 VPANEL_IN 5V_STB VPANEL 5V VPANEL 5V R425 1K C443 0 1U C440 0 1U R430 20K C444 100uF 16V P401 CON15X2 DIP CMO 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 L401 NC C439 470u 16V L402 80R 0805 E B C SOT 23 Q401 MMBT3904 1 3 2 C442 0 1U R427 24K R426 0 I404 AM94...

Page 50: ...6 87 88 89 90 91 92 95 96 75 72 71 1 2 3 4 6 7 8 9 10 12 13 5 11 35 41 73 70 67 102 66 127 128 57 14 83 53 107 111 114 115 55 56 58 59 60 62 61 105 50 51 124 16 64 69 84 103 36 65 68 74 94 100 110 43 48 49 98 99 101 104 112 125 93 113 42 32 31 30 29 28 27 26 37 38 39 40 63 116 117 118 106 119 120 121 126 108 NC RIN1M GIN1M SOGIN1 BIN1N RIN1P GIN1P BIN1P VSYNC1 HSYNC1 REXT REFP REFM SDO SCK CSZ SDI...

Page 51: ... 1000uF 16V LowESR C350 0 1U I307 AP1117 1 8 SOT223 1 2 3 4 ADJ VOUT VIN TAB OUT ADJ IN I306 AP1084 33 3 3V Regulator TO 263 3 2 1 4 200 2A L301 R309 NC C349 0 1U C301 100uF 16V R303 NC C339 0 1U C370 100uF 16V L312 200 2A C344 0 1U C326 10uF 16V I305 AIC1117 3 3 1 2 3 4 ADJ VOUT VIN TAB C303 0 1U E B C SOT 23 Q305 MMBT3904 1 3 2 R302 NC C311 0 1U C331 0 1U C305 0 1U C310 0 1U R320 4 7K C309 47uF ...

Page 52: ...116 0 047U C120 12P C112 10P ESD L101 R30 0603 C107 1000P R132 100 R118 100 C115 0 047U C121 4 7uF 16V C109 47P ESD R134 3 3K R127 75R D107 1N4148_SMD 1 2 C118 0 047U R119 100 L102 R30 0603 C119 0 047U L103 R30 0603 R128 47R R130 47R I102 24C21 SMD DIP DDC EDID Data 1 8 2 7 3 6 4 5 A0 VCC A1 WP A2 SCL GND SDA R123 47R C123 12P D108 1N4148_SMD 1 2 C106 0 047U R121 47R R116 47R R122 100R C104 0 047U...

Page 53: ...805 R516 100R L506 10uH SMT R536 1K R528 10K R526 0R R514 6 8K C540 0 1U R522 75R C528 470uF 16V C559 100uF 50V C557 47uF 16V D507 BZV55 C33 R523 75R R517 NC C560 100uF 50V C649 47uF 16V P501 RCA JACK 1 2 3 4 5 6 C541 47uF 16V R535 10K D501 1N4148_SMD 1 2 L501 R30 ohm0603 I503 X6966D SIP5D 1 2 3 4 5 I G CCG O O C561 0 1U 0805 R537 20K C546 0 1U 0805 C638 100P R542 20K C511 NC 330P L608 220R R539 1...

Page 54: ...NSE RSW1 RSW2 EW VERT VERT TEST SUBW VSUP5 0BE GND GND VSUP8 0AU VREFAU SPEAKERL SPEAKERR AOUT1L AOUT1R AOUT2L AOUT2R AIN3L AIN3R AIN2L AIN2R AIN1L AIN1R SIF TAGC VREFIF IFIN IFIN PWMV DVFBL SDA SCL P21 P20 P17 P16 P15 P14 P13 P12 P11 P10 XROMQ EXTIFQ VSUP3 3FE GND GND VSUP1 8FE VOUT3 VOUT2 VOUT1 VIN1 VIN2 VIN3 VIN4 VIN5 VIN6 VIN7 VIN8 VIN9 VIN10 VIN11 P37 656IO7 P36 656IO6 P26 656VIO P32 656IO2 A...

Page 55: ... 12 14 13 LOUTP LOUTN SHUTDOWN ROUTP LINP PGND RINP LINN PGND PGND PGND COSC PVDD RINN PVDD PVDD BYPASS ROUTN PVDD NC ROSC AGND VOLUME VDD R609 NC L602 80R 0805 C615 1u 0805 R610 10K P605 CON4 P 2 5mm 4 3 2 1 L L R R C619 0 1u 0805 C601 470u 16V R611 10K C611 220P 0603 C622 0 1u 0805 C621 0 1u 0805 C620 0 1u 0805 R602 10K C610 1u 0805 R601 4 7K C606 1u 0805 C614 10uF 16V R606 120K R608 10K R607 0R...

Page 56: ...ENU GND LEDG LEDR POWER VOLUME IRGND IRIN VOLUME IR5V GND K GND K GND K GND K S701 P701 1 2 3 4 5 6 7 8 9 10 11 12 13 1 2 3 4 5 6 7 8 9 10 11 12 13 D701 I701 CAM 1538TP5 1 2 3 VOUT GND VCC S707 S706 S705 S704 S703 S702 ViewSonic Corporation Confidential Do Not Copy N1900w 1E 53 ...

Page 57: ... 107K 1 C820 1500PF 1KV C829 1000uF 16V T2 5A 250V F801 C801 0 33uF Z801 HZ12A 3 R843 Jumper Z802 HZ12A 3 C821 2200PF 500V C827 10UF 50V I801 LD7575 6 5 8 2 4 1 7 3 Vcc Drv HV FB GND Adj NC CS L803 5 2UH T801 ER28H 12PIN 2374228072P 3 5 4 1 11 10 7 8 9 R839 619K 1 Q801 FQPF7N65C D822 FCQ10A06 R844 619K 1 C810 10UF 50V R805 619K 1 I802 TLP621 4 3 1 2 R804 Jumper TL431D I803 P801 AC IN 100 240V N L ...

Page 58: ...1 2 3 4 5 6 7 8 SST RT GNDA DRV2 DRV1 VCCA VSEN ISEN D919 1N4148 R929 10K AP9977GM Q911 1 2 3 4 5 6 7 8 R903 NC D902 1N4148 D901 JUMPER WIRE C915 NC C911 0 1UF C928 0 1uF Q908 2SC945P I902 NC 3 1 2 IN OUT GND C925 0 1uF C914 0 1UF D912 1N4148 C927 2200P C926 2200P R908 10K D917 1N4148 R923 NC AP9977GM Q905 1 2 3 4 5 6 7 8 D906 1N4148 R918 107K 1 R924 1M D909 1N4148 P904 1 2 T901 2374301405P 7 1 2 ...

Page 59: ...9 PCB Layout Diagrams 9 1 MAIN PCB TOP VIEW ViewSonic Corporation Confidential Do Not Copy N1900w 1E 56 ...

Page 60: ...9 2 MAIN PCB BOTTOM VIEW ViewSonic Corporation Confidential Do Not Copy N1900w 1E 57 ...

Page 61: ...9 3 CON PCB TOP VIEW ViewSonic Corporation Confidential Do Not Copy N1900w 1E 58 ...

Page 62: ...9 4 CON PCB BOTTOM VIEW ViewSonic Corporation Confidential Do Not Copy N1900w 1E 59 ...

Page 63: ...9 5 POWER PCB TOP VIEW ViewSonic Corporation Confidential Do Not Copy N1900w 1E 60 ...

Page 64: ...9 6 POWER PCB BOTTOM VIEW ViewSonic Corporation Confidential Do Not Copy N1900w 1E 61 ...

Page 65: ...10 Exploded Diagram And Exploded Parts List ViewSonic Corporation Confidential Do Not Copy N1900w 1E 62 ...

Page 66: ...ViewSonic Corporation Confidential Do Not Copy N1900w 1E 63 ...

Page 67: ...ETAL PLATE 1 0MM KENSINGTON 1 19 HW 00003031 2071872900P BRACKET FIX JT198QP SECC 0 8T WALL MOUNT 1 20 M SCW 0824 0123 2084740102P SCREW BND T M4X10 BND T 2 21 M SCW 0824 0285 2084730082P SCREW BND T M3X8 BND T 2 22 N A 2084740082P SCREW BND T M4X8 BND T 4 23 N A 2082630064P SCREW M3 6 P 0 5 BLACK 4 24 M SCW 0824 6944 2084740124P SCREW BND T M4X12 BND T BLK 2 25 PL 00006021 2028261101P STAND S ATA...

Page 68: ...Bag 250mmx350mmx0 03t M MS 0808 1316 2013222536P 6P75 21 Polyethy Bag 90cmx75cmx0 02t M MS 0808 1317 2013053000P 6P60 22 Craft Foam EPS Right P 00006026 2012186500P 6P20 23 Polyethy Bag 200x350x0 03t P 00008064 2013228807P 6P85 24 Craft Box P 00008125 2011119521P 6P01 25 Craft Foam EPS Left P 00008127 2012186600P 6P21 26 Generic Foam Set P 00001347 30833 3 96 27 Generic Box P 00003839 22405 3 29 2...

Page 69: ...D T C239 1 42 N A 2346110496P CAP CHIP 125 C CS 0603 X7R 50V 0 1u K T C240 1 43 N A 2346110496P CAP CHIP 125 C CS 0603 X7R 50V 0 1u K T C242 1 44 N A 2341127096P CAP CHIP 125 C CS 0603 COG 50V 27p J T C243 1 45 N A 2346110496P CAP CHIP 125 C CS 0603 X7R 50V 0 1u K T C245 1 46 N A 2346110496P CAP CHIP 125 C CS 0603 X7R 50V 0 1u K T C247 1 47 N A 2346110496P CAP CHIP 125 C CS 0603 X7R 50V 0 1u K T C...

Page 70: ...1147096P CAP CHIP 125 C CS 0603 COG 50V 47p J T C537 1 129 N A 2341147096P CAP CHIP 125 C CS 0603 COG 50V 47p J T C538 1 130 N A 2346110496P CAP CHIP 125 C CS 0603 X7R 50V 0 1u K T C540 1 131 N A 2341147096P CAP CHIP 125 C CS 0603 COG 50V 47p J T C542 1 132 N A 2341147096P CAP CHIP 125 C CS 0603 COG 50V 47p J T C543 1 133 N A 2341147096P CAP CHIP 125 C CS 0603 COG 50V 47p J T C544 1 134 N A 234711...

Page 71: ... 1 215 E D 0403 1892 2364200896P DIODE RECT SMD BAS32L SOD80C PHILIPS D505 RC 1 216 E 00003830 2364601396P DIODE SWITCH SMD 1N4148W 7 F SOD 123 DIODES D505 RD 1 217 E 00003534 2363600696P DIODE SWITCH RLS4148 T11 SOD80C ROHM D506 RA 1 218 N A 2364600496P DIODE SWITCH SMD MM4148 SOD80C GRANDE D506 RB 1 219 E D 0403 1892 2364200896P DIODE RECT SMD BAS32L SOD80C PHILIPS D506 RC 1 220 E 00003830 23646...

Page 72: ...A Q101 RA 1 308 N A 2360300596P XISTOR NPN R SMD MMBT3904 7 SOT23 VISHAY Q101 RB 1 309 E Q 0402 1087 2360301896P XISTOR NPN R SMD MMBT3904LT1 SOT23 LRC Q101 RC 1 310 E Q 0402 1624 2360301696P XISTOR NPN R SMD PMBS3904 SOT 23 PHILIPS Q101 RD 1 311 E Q 0402 1180 2360301296P XISTOR NPN R SMD MMBT3904 F SOT23 DIODES Q101 RE 1 312 N A 2360609796P FET N CH SMD 2SK2158 SOT 23 NEC Q201 1 313 N A 236060979...

Page 73: ... 0603 1 10W 0 ohm J T R212 1 396 E R 0405 6600 2253200096P RES CHIP 1 10W RC 0603 1 10W 0 ohm J T R214 1 397 E R 0405 6600 2253200096P RES CHIP 1 10W RC 0603 1 10W 0 ohm J T R216 1 398 E R 0405 6600 2253200096P RES CHIP 1 10W RC 0603 1 10W 0 ohm J T R217 1 399 N A 2253210396P RES CHIP 1 10W RC 0603 1 10W 10Kohm J T R218 1 400 E R 0405 6600 2253200096P RES CHIP 1 10W RC 0603 1 10W 0 ohm J T R219 1 ...

Page 74: ... 1 484 E R 0405 6600 2253200096P RES CHIP 1 10W RC 0603 1 10W 0 ohm J T R607 1 485 N A 2253210396P RES CHIP 1 10W RC 0603 1 10W 10Kohm J T R608 1 486 N A 2253210396P RES CHIP 1 10W RC 0603 1 10W 10Kohm J T R610 1 487 N A 2253210396P RES CHIP 1 10W RC 0603 1 10W 10Kohm J T R611 1 488 E R 0405 6410 2253210296P RES CHIP 1 10W RC 0603 1 10W 1 0Kohm J T R618 1 489 N A 2253220396P RES CHIP 1 10W RC 0603...

Page 75: ...13pF X201 1 572 N A 2369102901P XTAL OSC 14 31818MHZ 49US 0 1mW 30PF X401 1 573 N A 2363703808P LED 3 GRN YEL H 7 5mm D701 1 574 N A 2419301500P RECEIV BLOCK ECM A38 3VS17 ECEL I701 1 575 N A 2427413004P WIRE HARNESS 13 13P H B 1007 26 L 250 P701 1 576 N A 2427300043P LUG W WIRE OB 4 3 TIN 1007 24 L 40mm BLK P702 1 577 N A 2427300043P LUG W WIRE OB 4 3 TIN 1007 24 L 40mm BLK P703 1 578 M SW 0815 0...

Page 76: ...48 DO 35 PHILIPS D905 RC 1 662 E D 0403 0531 2363600195P DIODE SWITCH 1N4148 DO 35 WILLAS D906 RA 1 663 N A 2363601795P DIODE SWITCH 1N4148TA_NL DO 35 FAIRCHILD D906 RB 1 664 N A 2363601095P DIODE SWITCH 1N4148 DO 35 PHILIPS D906 RC 1 665 E D 0403 0531 2363600195P DIODE SWITCH 1N4148 DO 35 WILLAS D907 RA 1 666 N A 2363601795P DIODE SWITCH 1N4148TA_NL DO 35 FAIRCHILD D907 RB 1 667 N A 2363601095P D...

Page 77: ...2 0Kohm J T52 R920 1 752 N A 2239256245P RES PRE 1 4 S RN 1 4WS 5 62Mohm F T52 R922 1 753 E R 0405 3213 2233410595P RES CBN 1 4 S RD 1 4WS 1 0Mohm J T52 R924 1 754 N A 2239233215P RES PRE 1 4 S RN 1 4WS 3 32K F T52 MINI R927 1 755 E R 0405 3214 2233410395P RES CBN 1 4 S RD 1 4WS 10Kohm J T52 R929 1 756 N A 2239239205P RES PRE 1 4 S RN 1 4WS 392 ohm F T52 R937 1 757 N A 2363500395P DIODE ZENER HZ12...

Page 78: ...02 RA 1 839 E 00008087 2391303001P SPEAKER ASS Y 3W 4ohm R JONG JAR W902 RB 1 840 N A 2071982800P METAL FITTG JC198TS61E SECC T 0 6mm 1F11 1 841 N A 2080006700P SCREW SPE M3 4 CANERA SCREW NI TYPE I 1F12 4 842 HW 00003028 2071874300P BRACKET FIX SECC T 0 8 VE910 ACINLET 1F13 1 843 M SCW 0824 0811 2080003700P SCREW SPE ISZZTER001A M3 6L MSWR17 FZMYI 1F14 4 844 N A 2082630042P SCREW M3 4 P 0 5 1F15 ...

Page 79: ...MO 6P02 1 889 N A 2055613499P LABEL N1900W INSTALL STAND STICKER 6P04 1 890 N A 2055613379P LABEL VIEWSONIC CONTAINER LABEL 6P11 1 64 891 P 00006026 2012186500P POLYFOAM JT198ZP6HR EPS R 6P20 1 892 P 00006027 2012186600P POLYFOAM JT198ZP6HR EPS L 6P21 1 893 M MS 0808 1317 2013053000P POLYETHY BAG 90CMX75CMX0 02t PE LD 6P60 1 894 M MS 0808 1316 2013222536P POLYETHY BAG 250mmX350mmX0 3t ADD PE LD 6P...

Page 80: ... Flow Chart 7 Block Diagram 8 Schematic Diagrams 9 PCB Layout Diagrams 10 Exploded Diagram And Exploded Parts List 11 Recommended Spare Parts List 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 suggestions regarding this service manual Reader s basic dada Name Titl...

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