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ViewSonic N3250w-1L Service Manual

ViewSonic N3250w-1L Service Manual

32” lcd tv
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Service Manual

ViewSonic N3250w-1L
Model No. VS11335-1L
32" LCD TV
(N3250w-1L_SM Rev.1b_Aug.2008)
®
ViewSonic
381 Brea Canyon Road, Walnut, California 91789 USA - (800) 888-8583

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Summary of Contents for ViewSonic N3250w-1L

  • Page 1: Service Manual

    Service Manual ViewSonic N3250w-1L Model No. VS11335-1L 32” LCD TV (N3250w-1L_SM Rev.1b_Aug.2008) ® ViewSonic 381 Brea Canyon Road, Walnut, California 91789 USA - (800) 888-8583...

  • Page 2: Revision History

    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.

  • Page 3: Table Of Contents

    5. Adjustment Procedure ................21 6. Trouble Shooting Flow Chart..............51 7. Block Diagram .....................55 8. Schematic Diagrams..................56 9. PCB Layout Diagrams .................76 10. Exploded Diagram And Exploded Parts List...........82 11. Recommend Spare Parts List..............85 ViewSonic Corporation N3250w-1L Confidential - Do Not Copy...

  • Page 4: Precautions And Safety Notices

    The LCD module should be supplied by power complied with requirements of Limited Power Source (IEC60950 or UL1950), or be applied exemption. (14) The LCD module is designed so that the CFL in it is supplied by Limited Current ViewSonic Corporation N3250w-1L Confidential - Do Not Copy...
  • Page 5 Do not touch and that may cause “Mura” the surface of the polarizer. Take out the monitor with cushions Taking out the monitor by grasping the LCD panel. That may cause “Mura” ViewSonic Corporation N3250w-1L Confidential - Do Not Copy...
  • Page 6 Place the monitor on a clean and soft foam pad. Placing the monitor on foreign objects. That could scratch the surface of the panel or cause “Mura” ViewSonic Corporation N3250w-1L Confidential - Do Not Copy...

  • Page 7: Specification

    Typical. 0.35 V Audio Characteristics: AF Output Level Measured via LP 20 kHz Typical. 0.35Vrms Filter, RMS Decoder, 75us De-emphasis 10% (max.) 44 dB (min.) Compatible system TUNER NTSC/PAL Compatible system AV NTSC M/PAL ViewSonic Corporation N3250w-1L Confidential - Do Not Copy...
  • Page 8 100-240VAC +/- 10% Wide Range Input Frequency Range 47-63 Hz Input Current 3.0A @ 115VAC // 1.5A @ 230VAC Max in < 150A (with fully loaded power supply) at Power Supply Inrush 230Vac ViewSonic Corporation N3250w-1L Confidential - Do Not Copy...
  • Page 9 The product firmware of VS11257-1M / VS11335-1M shall have a firmware version of V:P01. Any changes/revisions afterward shall also be pre-approved by ViewSonic in written. For VS11257-1M / VS11335-1M, its firmware shall have a built-in frequency table for NTSC/ATSC off-air TV/CATV, Closed-Caption, and with MTS implementation.
  • Page 10 Painting Color - PANTONE 427C (Black for front bezel & back cover) Power Key - PANTONE 032C (RED) Key Pads – PANTONE 11C & PANTONE 5C(Cool Gray) Color Texts Printed on Front Cover and Key Pads - PANTONE 427C, PANTONE 433C(Black) ViewSonic Corporation N3250w-1L Confidential - Do Not Copy...
  • Page 11 Molded Plastic Workmanship shall be inspected according to ViewSonic Molded Plastic Parts Specification, VSCMPPSPEC001V1.2. Screen Printed Parts, Bird Logo Artwork shall be provided and confirmed by ViewSonic. Recess Rear Label A label identifying the product name, model/serial number and FCC ID/Logo shall be placed into the rear label recess located on the rear panel of the chassis.

  • Page 12: Front Panel Function Control Description

    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 to unlock it. ViewSonic Corporation N3250w-1L Confidential - Do Not Copy...

  • Page 13: Rear View Of The Product

    HDMI Input Terminal Connect this port to the HDMI output of A/V device. Headphone Jack Connect this port to your headphone. Power (AC input) Using power cord provided, connect to a power source. ViewSonic Corporation N3250w-1L Confidential - Do Not Copy...

  • Page 14: Remote Control

    Remote Control ViewSonic Corporation N3250w-1L Confidential - Do Not Copy...
  • Page 15 Toggle to enable/disable Picture in Picture/Picture Out of Picture function 24 P.INPUT POP/PIP input source select 25 SWAP Switch between main screen and sub-screen Note: PIP means Picture In Picture. POP means Picture Out Of Picture. ViewSonic Corporation N3250w-1L Confidential - Do Not Copy...

  • Page 16: Osd Functions

    Audio Out: To control sound output ON/OFF from the RCA audio out connectors. Note: To adjust the Audio settings, Smart Sound must be set to the User mode. (Select through the Sound button on the remote control) ViewSonic Corporation N3250w-1L Confidential - Do Not Copy...
  • Page 17 Setup Menu — To set up OSD window Setup Menu is active in all input sources. • Language: To select a OSD language from English, Portuguese or Spanish. • Parental: To set up parental control. ViewSonic Corporation N3250w-1L Confidential - Do Not Copy...
  • Page 18 Aspect Ratio: To select image size between Normal, Full, Wide1, Wide2, Wide3, 4:3, 16:9, and No scale. • OSD Timeout: To setup the display time of OSD. (5, 15, 45, and 60 seconds) • Memory Recall: To restore the factory default settings. ViewSonic Corporation N3250w-1L Confidential - Do Not Copy...
  • Page 19 TV / YPbPr / AV / S-Video / VGA YPbPr TV / HDMI / AV / S-Video HDMI / YPbPr / VGA S-Video HDMI / YPbPr / VGA TV / HDMI / AV / S-Video ViewSonic Corporation N3250w-1L Confidential - Do Not Copy...
  • Page 20 If you forget your initial password,you can press"8866"to resume. "MENU" Lock & Un-lock: Pressing "Vol+" and "Vol-" from Front Panel Keys. "POWER" Lock & Un-lock: Pressing "Vol+" and "MENU" from Front Panel Keys. ViewSonic Corporation N3250w-1L Confidential - Do Not Copy...

  • Page 21: Circuit Description

    MT8202 supports alpha blending for Video and two OSD planes. It also supports 10bit gamma correction and advanced dithering processing for LCD display with 6/8/10 bit output. ViewSonic Corporation N3250w-1L Confidential - Do Not Copy...
  • Page 22 CSDL,CSDA HDMI MT8202 Digital audio interface MT8293 Conn HDMI_PLUG_POWER LCD Controller IC PWR5V ector DSDL,DSDA KSDL,KSDA 0~23,DE,Hsync, Vsync,clk HDMI_HPD 12C interface 12C interface EEPROM for EEPROM for HDCP Key EDID CP10 interface ViewSonic Corporation N3250w-1L Confidential - Do Not Copy...
  • Page 23 Digital audio, such as HDMI , have decoded by MT5351 and MT8293, is converted to I2S digital audio already. The I2S digital audio data is decoded and processed by MT8202, and then be delivered to AD8256 for audio amplifying. ViewSonic Corporation N3250w-1L Confidential - Do Not Copy...

  • Page 24: Adjustment Procedure

    1.Fig. 1: under the picture 16 grey scale of VGA source, select WHITE BALANCE and press ENTER, The color warm will auto adjust. The act of EHITE BALANCEL is completed when the picture is steady. ViewSonic Corporation N3250w-1L Confidential - Do Not Copy...
  • Page 25 SPEAKER output is right. Meets earphone with the EARPHONE, Determined whether the action of EARPHONE output is normal. 1.4.10 All Modes Reset After final QC step, we must to erase all saved changes again and restore the factory defaults. ViewSonic Corporation N3250w-1L Confidential - Do Not Copy...
  • Page 26 613.75 655.00 614 – 620 615.25 619.75 661.00 620 – 626 621.25 625.75 667.00 626 – 632 627.25 631.75 673.00 632 – 638 633.25 637.75 679.00 639 – 644 639.25 643.75 685.00 ViewSonic Corporation N3250w-1L Confidential - Do Not Copy...
  • Page 27 635.75 677.00 336 – 342 337.25 341.75 383.00 636 – 642 637.25 641.75 693.00 342 – 348 343.25 347.75 389.00 642 – 648 643.25 647.75 689.00 348 – 354 349.25 353.75 395.00 ViewSonic Corporation N3250w-1L Confidential - Do Not Copy...
  • Page 28 TV set and check whether the TV set receives the signal of CH13. (3). After all of FUNCTION TEST completed, we must erase all saved changes again and restore the factory defaults. ViewSonic Corporation N3250w-1L Confidential - Do Not Copy...
  • Page 29 13.328ms 16.667ms 16.666ms V TOTAL 15.880ms 12.795ms 16.000ms 15.880ms V DISPLAY 0.600ms 0.466ms 0.444ms 0.600ms V B-Porch 0.124ms 0.050ms 0.111ms 0.124ms Vs Width 0.000ms 0.000ms 0.000ms 0.000ms V Border H/V Sync Interlace ViewSonic Corporation N3250w-1L Confidential - Do Not Copy...
  • Page 30 H B-Porch 1.310us 1.037us H Width 0.000us 0.000us H Border 16.662ms 16.661ms V TOTAL 16.097ms 16.005ms V DISPLAY 0.377ms 0.594ms V B-Porch 0.126ms 0.047ms Vs Width 0.00ms 0.00ms V Border H/V Sync Interlace ViewSonic Corporation N3250w-1L Confidential - Do Not Copy...
  • Page 31 DDC Card RS-232 cable Barcode Reader VGA Cable N3250W-L LCD TV DDC Card RS-232 Cable VGA Cable Barcode Reader 2.2 Setup Procedure 2.2.1 Connect VGA Card and DDC Card with RS-232 cable. ViewSonic Corporation N3250w-1L Confidential - Do Not Copy...
  • Page 32 2.2.3 Connect DDC Card and N3250W-L LCD TV with VGA Cable. (when key in DVI DDC information, use VGA transform to DVI port ) 2.2.4 Connect Power Cord to N3250W-L LCD TV. 2.3 DDC Key In Procedure 2.3.1 Run DDC.exe ViewSonic Corporation N3250w-1L Confidential - Do Not Copy...
  • Page 33 2.3.2 Choose model number then 2.3.3 Press “ENTER” key. ViewSonic Corporation N3250w-1L Confidential - Do Not Copy...
  • Page 34 2.3.4 Press “F4” key. 2.3.5 Input barcode ViewSonic Corporation N3250w-1L Confidential - Do Not Copy...
  • Page 35 2.3.6 Press “ENTER” key, then the successful picture is as follows. “DDC DOWNLOED 2.3.7 Exit program. ViewSonic Corporation N3250w-1L Confidential - Do Not Copy...
  • Page 36 3.1 Equipment Needed N3250W-L LCD TV RS-232 cable Barcode Reader HDMI Cable N3250W-L LCD TV RS-232 Cable HDMI Cable Barcode Reader 3.2 Setup Procedure 3.2.1Connect HDMI Card and DDC Card with RS-232 cable. ViewSonic Corporation N3250w-1L Confidential - Do Not Copy...
  • Page 37 3.2.2 Barcode Reader connects with keyboard and PC keyboard port. 3.2.3 Connect DDC Card and N3250W-L LCD TV with HDMI Cable. 3.2.4 Connect Power Cord to N3250W-L LCD TV. 3.3 DDC Key In Procedure 3.3.1 Run DDC.exe ViewSonic Corporation N3250w-1L Confidential - Do Not Copy...
  • Page 38 3.3.2 Choose model number then 3.3.3 Press “ENTER” key. ViewSonic Corporation N3250w-1L Confidential - Do Not Copy...
  • Page 39 3.3.4 Input barcode 3.3.5 Press “ENTER” key, then the successful picture is as follows. “DDC DOWNLOED OK! 3.3.6 Exit program. ViewSonic Corporation N3250w-1L Confidential - Do Not Copy...
  • Page 40 4.4 Execute the Mtktool to start download the file. The Mtktool program will be upgraded if necessary. "MtkTool Auto BaudRate.exe" 4.5 The Mtktool Operat 4.5.1 Select Platform : MT8105 , MT1389 or MT8205 ViewSonic Corporation N3250w-1L Confidential - Do Not Copy...
  • Page 41 4.5.2 Select COM port. Depends on the COM port assigned in System Device Manager (Refer below right). 4.5.3 Select Baud Rate. 115200x 8 (Suggestion) ViewSonic Corporation N3250w-1L Confidential - Do Not Copy...
  • Page 42 4.5.4 Enable the USB Bridge. 4.5.5 Browsing the File to download. ViewSonic Corporation N3250w-1L Confidential - Do Not Copy...
  • Page 43 2. You can slow down the baud rate if some Flash memory can not works properly in high-speed download. 3. Please call the MediaTek contact window if any problem found like unsupported Flash Type or fail to download. ViewSonic Corporation N3250w-1L Confidential - Do Not Copy...
  • Page 44 At last, close the carton and seal it with tape. (Figure 4) 1.Power Cord 2.VGA Cable 3.RF Cable 4.RCA Cable 5.User’s Guide 6.Remote contrl 7.Guarant Card 8.Battery Figure 3 Figure 4 ViewSonic Corporation N3250w-1L Confidential - Do Not Copy...
  • Page 45 PACKING PART LIST ( N3250w-1L ) ViewSonic Model Number: VS11335-1L Rev: 1a Item ViewSonic P/N DESCRIPTION STATUS Ref. P/N Location Q'ty N3250W(L) monitor P-00005968 Polyethy Bag Active 2013054007P POLYETHY BAG P-00004461 Foam-EPE (Right) Active 2012184600P POLYFOAM (R) P-00004462 Foam-EPE (Left)
  • Page 46 Disassembly Procedure Disassembly of Stand and Dust Cover from LCD TV. 1.1 Unscrew 4 screws that secure Stand Unit and detach Dust Cover from the LCD TV. Stand Dust Cover Dust Cover ViewSonic Corporation N3250w-1L Confidential - Do Not Copy...
  • Page 47 2. Disassembly of Rear Cover. 2.1 Unscrew 16 screws to remove Rear Cover. Rear Cover 3. Disassembly of Main Board,Power Board,IR Board,Speaker,Front Cover and Panel Unit. 3.1 Unscrew 14 screws to remove Shield Plate. Shield Plate ViewSonic Corporation N3250w-1L Confidential - Do Not Copy...
  • Page 48 3.2. Unscrew 9 screws to remove Dust Cover and METAL FITTG. METAL FITTG-I/O-Down DUST COVER METAL FITTG-I/O-Side ViewSonic Corporation N3250w-1L Confidential - Do Not Copy...
  • Page 49 3.3. Unscrew 5 screws and disconnect the wires to remove Main Board. Main Board 3.4. Unscrew 4 screws and disconnect the wires to remove Power Board. Power Board ViewSonic Corporation N3250w-1L Confidential - Do Not Copy...
  • Page 50 3.5. Unscrew 3 screws and disconnect the wires to remove KeyPad Board. 3.6. Unscrew 8 screws to remove Speaker. Speaker ViewSonic Corporation N3250w-1L Confidential - Do Not Copy...
  • Page 51 3.7. Unscrew 8 screws to remove Bracket.Fix. BRACKET,FIX 3.8. Unscrew 4 screws to remove IR Board. IR Board ViewSonic Corporation N3250w-1L Confidential - Do Not Copy...
  • Page 52 3.9. Unscrew 4 screws to remove Front Cover. Front Cover 3.10. Lay Panel Unit facedown and unscrew 8 screws on its right,left,up and down sides, to remove Panel Bracket. Panel Bracket ViewSonic Corporation N3250w-1L Confidential - Do Not Copy...
  • Page 53 3.11.Unscrew 8 screws to remove Bracket.and Panel Unit. Panel Unit ViewSonic Corporation N3250w-1L Confidential - Do Not Copy...

  • Page 54: Trouble Shooting Flow Chart

    Replace I106 Replace I135 signal output to I145? defective? Check I136 is Replace I136 defective? Check Pin37 of I145 is Check Earphone high? circuit Check I145 is Replace I145 defective? Check Speaker Wire ViewSonic Corporation N3250w-1L Confidential - Do Not Copy...
  • Page 55 OK? Check 3.3V is on C113? Replace I101 1.9V is on I102 Pin2? Replace I102 Check IR Board Replace IR Board Check X100 is OK? Replace x100 Replace I106 & I107 ViewSonic Corporation N3250w-1L Confidential - Do Not Copy...
  • Page 56 6.3. NO DISPLAY NTSC YPb Pr S-VIDEO Check Check Video wave form is Replace L221,R172 Check L224,R197,C340 is Replace L224,R197 or Replace I112 L221,R172,R173,C332,C33 on I112 Pin12 ? R173,C332,or C334 C340 4 is OK? Check Replace L215,R501,R170,C331 is L215.R501,R170 or C331 Check L226,R203,C335 is Replace L226,R203, or...
  • Page 57 Replace I106 Pin19~22 of P114 ? Check the LVDS wire from Replace LVDS Wire P114 to panel is OK? Check inverter wire from power board to panel is Replace Inverter Wire Replace Panel ViewSonic Corporation N3250w-1L Confidential - Do Not Copy...

  • Page 58: Block Diagram

    7. Block Diagram ViewSonic Corporation N3250w-1L Confidential - Do Not Copy...

  • Page 59: Schematic Diagrams

    CON_ 2.5mm_12 L234 L218 R113 AUIO IN/OUT GND DIGITAL GND MMBT3904 UP3_4 UP3_4 R201/0805 R201/0805 (NC)47K UP3_5 UP3_5 5VSB PWM0 PWM0 PWM1 PWM1 DC INPUT C106 C107 0.1U 1000U/16V/LowESR GNDP GNDP GNDP ViewSonic Corporation N3250w-1L Confidential - Do Not Copy...
  • Page 60 C784 LVDS_GND 3,5,25 C0603 3.65K 1% 0.1U 220U/16V CE050080 AP1084K33 SR54 C0603 C426 VFE_GND VFE_GND 3,5,8,19 OCSET +3.3V Regulator TO-263 0.1U C0603 VFE_GND1 VFE_GND1 3,5,8,19 C420 R522 0.1U AP1510 1.15K 1% C0603 ViewSonic Corporation N3250w-1L Confidential - Do Not Copy...
  • Page 61 TP31 TP01 TP26 TP29 TP27 TP36 TP33 TP34 TP35 SB33A SB33B SB18A DV18A DV33A TP37 GPIO5 TXD1 R118 R119 GPIO6 RXD1 TP38 SB33A SB33B SB18A DV18A DV33A VFE_GND UTXD RXD1 URXD TXD1 ViewSonic Corporation N3250w-1L Confidential - Do Not Copy...
  • Page 62 GNDA 3,8,19,22 10U/50V 4.7U 0.1U ADCV33A C0603 VFE_GND L123 47uH ADACVDD VFE_GND L124 R60/0603 AVDD_VAD1 0.45mm C280 C282 C281 C283 C284 C285 10U/50V 100U/16V 0.1U 4.7U 0.1U C0603 C0603 AUDIO_GND VFE_GND AUDIO_GND ViewSonic Corporation N3250w-1L Confidential - Do Not Copy...
  • Page 63 C212 100U/16V 0.1U C213 DV25B C214 C215 C216 C217 C218 1000U/16V 0.1U AMC7585-3.3V/TO252 CLOSE TO 8202 PIN 0.1U 0.1U 0.1U 0.1U 0.1U C219 C220 DV25A 100U/16V 220U/16V C222 C223 100U/16V 0.1U CE025063 ViewSonic Corporation N3250w-1L Confidential - Do Not Copy...
  • Page 64 3300P C0603 C0603 C0603 DV33A C296 C297 C298 5VSB 3300P 3300P 3300P C0603 C0603 C0603 C300 C301 C302 C303 100U/16V 0.1U 0.1U 0.1U C304 C305 C306 0.1U 0.1U 0.1U C0603 C0603 C0603 ViewSonic Corporation N3250w-1L Confidential - Do Not Copy...
  • Page 65 C346 330P FROM AV BOARD C347 VFE_GND1 AVPR0N R181 C348 0.01U PR0- AADCVSS AADCVSS 3,5,19,22 VFE_GND1 VFE_GND1 2,3,5,19 FROM Tuner TUMPX1 C349 MPX1 TUMPX2 R183 R184 C351 47U/16V MPX2 C352 C353 AADCVSS ViewSonic Corporation N3250w-1L Confidential - Do Not Copy...
  • Page 66 IOSDA R156 IOSCL R157 UP3_4, UP3_5 OPTION REMOVE L125 SCL_V50 TU_SCL 2.2uH C307 (NC)?uF L126 SDA_V50 TU_SDA 2.2uH C308 (NC)?uF C330 IOSCL IOSCL TUMPX2 TUMPX2 IOSDA IOSDA 47U/16V CE025050 10,26 MONO 10,26 ViewSonic Corporation N3250w-1L Confidential - Do Not Copy...
  • Page 67 S-VIDEO/AV AUDIO IN SY0_GND R536 SVIDEO Input. SY0_IN L225 P103 SC0_IN R200 AVSC0 SC0_IN D108 R80/0603 200mA R201 SY0_GND SC0_GND R537 S_TERMINAL1 L226 AV0_IN R203 AVCVBS1 D109 R80/0603 200mA R204 AV0_GND R538 ViewSonic Corporation N3250w-1L Confidential - Do Not Copy...
  • Page 68 MOSFET N 2SK2158 (NC)1M AVCC SOT23 L147 R60/0603 AVCC18 C410 C411 X101 R60/0603 0.1U 0.01U XTLI XTLO R227 (NC)0 (NC)27MHz XTAL C412 C413 Q109 (NC)18P (NC)18P DDC_SDA 9993_SDA MOSFET N 2SK2158 SOT23 AVCC ViewSonic Corporation N3250w-1L Confidential - Do Not Copy...
  • Page 69 VSYNC_1 L176 SC20 VGAVSYNC_1 C622 CVCK VCLK C623 R347 D134 100P VGASCL C624 (NC)5.6V 0.01U 100K L178 VGASDA R348 C625 R121/0603 5.6V 0.01U L177 VGAL_IN VGAL_IN R60/0603 C626 24C21/SMD/DIP 100P GNDA VFE_GND ViewSonic Corporation N3250w-1L Confidential - Do Not Copy...
  • Page 70 VGAL_IN VGA_L VGAR_IN VGA_R SG_12V R363 R364 L232 SG_12V C633 0.1U SG20 C0603 I134 YPBPR0_R VGA_R VGA_L AUINR AV0SY0_L AUINL AV0SY0_R YPBPR0_L SW1S1 SW1S2 HEF4052-12V SOP16 AUSW1_1 R365 GPIO7 AUSW1_2 R366 GPIO9 ViewSonic Corporation N3250w-1L Confidential - Do Not Copy...
  • Page 71 ADCVL C653 C652 SDOUT 47U/16V A_IN_R 0.1U DV33B AINR ADCVL AOBCLK R390 A_IN_L SCLK AINL AOLRCK R391 ADCRST_1 GNDA LRCK RST# C654 C655 AD12250 0.1U R392 TSSOP16 PULL DOWN FOR LJ (NC)10K ViewSonic Corporation N3250w-1L Confidential - Do Not Copy...
  • Page 72 22U/50V C748 TP02 AUDIO_OUT2_R R430 L188 R121/0603 AU2AVR R525 VIDEO_OUT C692 C693 NC(100U/16V) 1000P 1000P R497 R498 R499 NC(10K) GNDA D141 (NC)1K NC(220) (NC)5.6V AUDIO OUT RL 共 RCA JACK 1*2 layo ViewSonic Corporation N3250w-1L Confidential - Do Not Copy...
  • Page 73 0.1U 3_3AMP C0603 C0603 C0603 Q118 GPIO8 GPIO8 R451 C446 C447 GPIO8 C0603 C0603 R403 R404 R508 R455 R504 4.7K 4.7K AD8256_SDA IOSDA MMBT3904 AD8256_RST IOSDA C664 R505 0.1u AD8256_SCL IOSCL IOSCL ViewSonic Corporation N3250w-1L Confidential - Do Not Copy...
  • Page 74 MMBT3906 R461 IRRCVR1 IRRCVR1 4.7K UP3_1 Q121 C726 C727 MMBT3906 47U/16V 0.1U GPIO12 R463 4.7K 5VSB P112 IRRCVR1 LED_G LED_R 6P_2mm C309 470P P113 UP3_0 GPIO16 GPIO15 GPIO13 GPIO11 GPIO14 GPIO10 7P_2mm ViewSonic Corporation N3250w-1L Confidential - Do Not Copy...
  • Page 75 CHANGE 5VSB L195 R121/0805 L196 (NC)R121/0805 C740 R480 PANELVCC 0.1U R526 LVDS_GND I142 Q122 GPIO2 R481 47K GPIO2 R479 C739 C737 0.1U (NC)47K 220U/16V MMBT3904 C787 C735 AP9435M 0.1U 47U/16V LVDS_GND LVDS_GND ViewSonic Corporation N3250w-1L Confidential - Do Not Copy...
  • Page 76 PCTXD PCRXD 0.1U SYSROMWP R513 SCL0 L : Write Protect EEPROM H : Normal Download Q124 DLSW1 DLSW2 R487 GPIO4 EEPROM 24C16 SOP8/SMD CD4052 SOP16/SMD R488 R489 R490 (NC)10K SYSTEM EEPROM MMBT3904 ViewSonic Corporation N3250w-1L Confidential - Do Not Copy...
  • Page 77 8.19 Power board ViewSonic Corporation N3250w-1L Confidential - Do Not Copy...
  • Page 78 8.20 Power inverter board ViewSonic Corporation N3250w-1L Confidential - Do Not Copy...

  • Page 79: Pcb Layout Diagrams

    9. PCB Layout Diagrams 9.1. MAIN PCB TOP VIEW ViewSonic Corporation N3250w-1L Confidential - Do Not Copy...
  • Page 80 9.2. MAIN PCB BOTTOM VIEW ViewSonic Corporation N3250w-1L Confidential - Do Not Copy...
  • Page 81 9.3. CON PCB TOP VIEW ViewSonic Corporation N3250w-1L Confidential - Do Not Copy...
  • Page 82 9.4. CON PCB BOTTOM VIEW ViewSonic Corporation N3250w-1L Confidential - Do Not Copy...
  • Page 83 9.5. IR PCB TOP VIEW ViewSonic Corporation N3250w-1L Confidential - Do Not Copy...
  • Page 84 9.6. IR PCB BOTTOM VIEW ViewSonic Corporation N3250w-1L Confidential - Do Not Copy...

  • Page 85: Exploded Diagram And Exploded Parts List

    10. Exploded View And Exploded Parts List ViewSonic Corporation N3250w-1L Confidential - Do Not Copy...
  • Page 86 ViewSonic Corporation N3250w-1L Confidential - Do Not Copy...
  • Page 87 EXPLODED PARTS LIST (N3250w-1L) ViewSonic Model Number: VS11335-1L Rev: 1a Serial No. Prefix: QBA Item ViewSonic P/N Ref. P/N Description Q'ty 2024267902P FRONT BEZEL 32AA ABS HB BLACK C 2054256101P ORNAMENT JC32 FRONT BAR ABS HB AL-PLATE 2033150500P IR COVER...

  • Page 88: Recommend Spare Parts List

    Remark 1: Above listed items are examples, supplier can expand the rows to add more necessary items. Remark 2: All revised RSPLs with newly added items or any change made should be highlighted and correlated with the ECN/ECR approved by ViewSonic Corporation. This is to elimin ViewSonic Corporation...
  • Page 89 BOM LIST (N3250w-1L) ViewSonic Model Number: VS11335-1L Rev: 1e Serial No. Prefix: Item ViewSonic P/N Ref. P/N Description Location Universal number# Q'ty 2346110496P CAP,CHIP 125'C CS 0603/X7R/50V 0.1u K T C100 2346110496P CAP,CHIP 125'C CS 0603/X7R/50V 0.1u K T C101...
  • Page 90 Item ViewSonic P/N Ref. P/N Description Location Universal number# Q'ty 2341110296P CAP,CHIP 125'C CS 0603/COG/50V 1000p J T C447 2346110396P CAP,CHIP 125'C CS 0603/X7R/50V 0.01u K T C608 E-C-0404-4424 2341150996P CAP,CHIP 125'C CS 0603/COG/50V 5.0 p J T C609 2346110396P CAP,CHIP 125'C CS 0603/X7R/50V 0.01u K T...
  • Page 91 Item ViewSonic P/N Ref. P/N Description Location Universal number# Q'ty 2346110496P CAP,CHIP 125'C CS 0603/X7R/50V 0.1u K T C791 2347647596P CAP,CHIP 85'C CS 0805/Y5V/16V 4.7u Z T C792 2364601096P DIODE,SWITCH SMD BAV99 SOT-23 PHILIPS D120 2364600996P DIODE,SWITCH SMD BAV99 SOT23...
  • Page 92 Item ViewSonic P/N Ref. P/N Description Location Universal number# Q'ty 2365807196P IC,LINEAR(SMD) AMC1117-3.3 SOT-223 I148 2365335326P LINEAR IC AQ9105BLX DFN-8 ARQUES I149 2438000001P SOFTWARE HDCP KEY CODE KC01 2379360006P BEAD,HI-IMPEDANCE Z= 60 ohm(200MHZ~) 0603 300mA L103 2379512106P BEAD,HI-CURRENT Z= 120 ohm 0603 I=3.0A...
  • Page 93 Item ViewSonic P/N Ref. P/N Description Location Universal number# Q'ty 2360300896P XISTOR,NPN R SMD MMBT3904K SOT-23 FAIRCHILD Q112 E-Q-0402-1608 2360301896P XISTOR,NPN R SMD MMBT3904LT1 SOT23 Q112 E-Q-0402-1087 2360301696P XISTOR,NPN R SMD PMBS3904 SOT-23 PHILIPS Q113 E-Q-0402-1624 2360300896P XISTOR,NPN R SMD...
  • Page 94 Item ViewSonic P/N Ref. P/N Description Location Universal number# Q'ty 2253222096P RES CHIP 1/10W RC 0603 1/10W 22 ohm J T R130 E-R-0405-6603 2253275096P RES CHIP 1/10W RC 0603 1/10W 75 ohm J T R131 E-R-0405-7003 2253200096P RES CHIP 1/10W...
  • Page 95 Item ViewSonic P/N Ref. P/N Description Location Universal number# Q'ty 2253247396P RES CHIP 1/10W RC 0603 1/10W 47Kohm J T R350 E-00003527 2253247396P RES CHIP 1/10W RC 0603 1/10W 47Kohm J T R351 E-00003527 2253247396P RES CHIP 1/10W RC 0603 1/10W...
  • Page 96 Item ViewSonic P/N Ref. P/N Description Location Universal number# Q'ty 2253247396P RES CHIP 1/10W RC 0603 1/10W 47Kohm J T R480 E-00003527 2253210496P RES CHIP 1/10W RC 0603 1/10W 100Kohm J T R481 2253210396P RES CHIP 1/10W RC 0603 1/10W...
  • Page 97 Item ViewSonic P/N Ref. P/N Description Location Universal number# Q'ty 2336610613P CAP,MINI ELE 105'C EC 10u/ 50V 5*7 P=2.5 T C274 2336610613P CAP,MINI ELE 105'C EC 10u/ 50V 5*7 P=2.5 T C280 2336310713P CAP,MINI ELE 105'C EC 100u/ 16V 6.3*7 P=2.5 T...
  • Page 98 Item ViewSonic P/N Ref. P/N Description Location Universal number# Q'ty 2346133296P CAP,CHIP 125'C CS 0603/X7R/50V 3300p K T C171 2346133296P CAP,CHIP 125'C CS 0603/X7R/50V 3300p K T C172 2346133296P CAP,CHIP 125'C CS 0603/X7R/50V 3300p K T C173 2346110496P CAP,CHIP 125'C CS 0603/X7R/50V 0.1u K T...
  • Page 99 Item ViewSonic P/N Ref. P/N Description Location Universal number# Q'ty 2346133296P CAP,CHIP 125'C CS 0603/X7R/50V 3300p K T C298 2346110496P CAP,CHIP 125'C CS 0603/X7R/50V 0.1u K T C301 2346110496P CAP,CHIP 125'C CS 0603/X7R/50V 0.1u K T C302 2346110496P CAP,CHIP 125'C CS 0603/X7R/50V 0.1u K T...
  • Page 100 Item ViewSonic P/N Ref. P/N Description Location Universal number# Q'ty 2364503996P DIODE,ZENER SMD BZV55-C5V6 5% SOD-80C PHILIPS D108 E-D-0403-1779 2364505616P DIODE,ZENER SMD TZMC5V6 SOD-80 5.2-6.0V VISHAY D108 E-D-0403-2808 2364503996P DIODE,ZENER SMD BZV55-C5V6 5% SOD-80C PHILIPS D109 E-D-0403-1779 2364505616P DIODE,ZENER SMD TZMC5V6 SOD-80 5.2-6.0V VISHAY...
  • Page 101 Item ViewSonic P/N Ref. P/N Description Location Universal number# Q'ty 2404301106P CONNECTOR JST PH 7P SIDE P=2.0 OR EQUAL P113 2404312130P CONNECTOR 2R1L TOP P=2.0mm 2046P**V*** P114 2369104701P XTAL,OSC 27.000MHZ/49US 0.1mW/20pF X100 2404301106P CONNECTOR JST PH 7P SIDE P=2.0 OR EQUAL...
  • Page 102 RCA 3P(Y/R/W) 2562#26 1.8M BLK P904 1046 CB-00003425 2001131599P OWNER GUIDE N3250W(L) VS11335-1L SOUTH USA 6P80 1047 DC-00006367 2002310587P GUARANT CARD VIEWSONIC N3250W(L) (L) QSG 6P81 1048 DC-00006620 2011100017P CARTON BOX 360X220X50mm (WXDXH) BOX(B) 6P85 1049 P-00004497 2013228807P POLYETHY BAG 200X350X0.03T mm LDPE B5...
  • Page 103 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 (marc.maupin@viewsonic.com) ViewSonic Corporation N3250w-1L Confidential - Do Not Copy...

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