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Service Manual

ViewSonic VSD241/SD-A245/
CDS245 series
Model No. VS15197
Smart Display
(VSD241_SD-A245_CDS245_SM Rev. 1a. Aug. 2013)
ViewSonic 381 Brea Canyon Road, Walnut, California 91789 USA - (800) 888-8583

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Summary of Contents for ViewSonic VS15197

  • Page 1: Service Manual

    Service Manual ViewSonic VSD241/SD-A245/ CDS245 series Model No. VS15197 Smart Display (VSD241_SD-A245_CDS245_SM Rev. 1a. Aug. 2013) 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

    4. Block Diagram......................17 5. Schematic Diagrams....................18 6. Layout Side View......................62 7. Exploded View......................67 8. Trouble Shooting......................72 9. Assembly And Disassembly..................87 10. F/W Update......................... 111 11. Recommended Spare Parts List................137 ViewSonic Corporation VSD241/SD-A245/CDS245 Confidential - Do Not Copy...
  • Page 4: Precaution And Safety Notices

    Products powered by electricity should be serviced or repaired only by professional technicians. Any attempt to service or repair the product or products dealt within this service manual by anyone else could result in serious injury or death. ViewSonic Corporation VSD241/SD-A245/CDS245 Confidential - Do Not Copy...
  • Page 5: Safety Precautions

    3. Power supply requirements The attached external power adaptor with the AC power cord is necessary for the smart monitor. ViewSonic Corporation VSD241/SD-A245/CDS245 Confidential - Do Not Copy...
  • Page 6: General Specification

    Microphone Internal MIC x1, digital type Speakers 2W x 2 Input: 100~240VAC, 50/60Hz AC adapter Output: DC Jack 19V, 3.42A On mode: 48W (Typical) Power Consumption Sleep Mode: 0.55W Off mode: 0.53W ViewSonic Corporation VSD241/SD-A245/CDS245 Confidential - Do Not Copy...
  • Page 7 740 mm(L), 535 mm(H), 170 mm(W) Gross: 7.2 Kg Weight Net: 8.9 Kg Temperature: 0°C ~ 35°C Operating condition Humidity: 20% ~ 90% non-condensing Temperature: -30°C ~ 65°C Storage condition Humidity: 5% ~ 90% non-condensing ViewSonic Corporation VSD241/SD-A245/CDS245 Confidential - Do Not Copy...
  • Page 8 2. Outline ViewSonic Corporation VSD241/SD-A245/CDS245 Confidential - Do Not Copy...
  • Page 9 TMDS clock- DDC/CEC Ground DDC SCL DDC SDA +5V Power PIN 18 PIN 2 MICRO USB (OTG) connector (type B)  Signal VBUS MICRO SD socket  Signal DAT2 DAT3- DAT0 DAT1 ViewSonic Corporation VSD241/SD-A245/CDS245 Confidential - Do Not Copy...
  • Page 10 USB connector (type A)  Signal VBUS RJ45 connector  Signal ViewSonic Corporation VSD241/SD-A245/CDS245 Confidential - Do Not Copy...
  • Page 11 148.500 MHz 640 x 480 67 Hz 35 KHz 30.24 MHz 832x624 75 Hz 49.727 KHz 57.285 MHz 720x400 70 Hz 31.459 KHz 28.322 MHz 1152x870 75 Hz 68.68 KHz 100 MHz ViewSonic Corporation VSD241/SD-A245/CDS245 Confidential - Do Not Copy...
  • Page 12: Opearting Instructions

    1.3 LED indicator Power Status LED Behavior Scaler Amber Blue Off (SOC Off) Off (shutdown) Saving (HDMI) Saving Normal (On)(HDMI) Normal (On) Normal (On)(Main) Reboot Off (SOC Saving) Saving Factory mode Normal (On) ViewSonic Corporation VSD241/SD-A245/CDS245 Confidential - Do Not Copy...
  • Page 13: Osd Menu

    Slider / 0-100 OSD POSITION OSD V. POSITION Slider / 0-100 SETUP MENU OSD TIME OUT 5/15/30/60 (sec) OSD BACKGROUND (note 2) TOUCH SCREEN Enable/Disable Enable POWER INDICATOR LED On/Off MEMORY RECALL ViewSonic Corporation VSD241/SD-A245/CDS245 Confidential - Do Not Copy...
  • Page 14 On The Hunt DEVICE Palladium Sound Pixie Dust Pizzicato System Plastic Pipe Fluorine Fluorine Polaris Pollux Procyon Proxima Radon Rubidium Selenium Shaula Space Seed Spica Strontium Ta Da Tejat Thallium Tinkerbell Tweeters Upsilon Vega ViewSonic Corporation VSD241/SD-A245/CDS245 Confidential - Do Not Copy...
  • Page 15 Password Make passwords visible Security Device Administration PERSONAL Device administrator Unknown Source Credential Storage Trusted credentials Install form SD card Language & input Language English English Spell Checker Personal dictionary ViewSonic Corporation VSD241/SD-A245/CDS245 Confidential - Do Not Copy...
  • Page 16 Bluetooth address , Up time Legal information Legal information Model number VSD241 Android version 4.2.1 About tablet 3.1.10-gccee096 pobu-build-server@pobu-bu Kernel version ild-server-desktop#1 MM-DD HH:MM-SS CST 2013 Scaler version N2A.13 FW version en_US ViewSonic Corporation VSD241/SD-A245/CDS245 Confidential - Do Not Copy...
  • Page 17 VSCN: zh_HK Serial number Base on VS SKU table ViewSonic Corporation VSD241/SD-A245/CDS245 Confidential - Do Not Copy...
  • Page 18: Block Diagram

    4. Block Diagram BLOCK DIAGRAM Index of this chapter: 1. Block Diagram ViewSonic Corporation VSD241/SD-A245/CDS245 Confidential - Do Not Copy...
  • Page 19: Schematic Diagrams

    5. Schematic Diagrams SCHEMATIC DIAGRAM Index of this chapter: 5-1. Main Board 5-2. MIC Board ViewSonic Corporation VSD241/SD-A245/CDS245 Confidential - Do Not Copy...
  • Page 20: Main Board

    150mA TPS22924CYZPR EN_3V3_COM VDD_TX VDD_5V0_3V3_AUD VDD_PLL AVDD_3V3_SPK_AMP 3.3VA VDD_1V8_AUDIO AVDD_1V8_AUD VDD_3V3_SDCARD 300mA VDD_1V8_LDO_IN EN_VDD_SDMMC1 VDD_3V3_CAM VDD_2V8_CAM G9090-280T11U CAM1_LDO_EN VDD_2V8_SENSOR ( G sensor ) 110uA EN_2V8_SENSOR 48uA VDD_3V3_ALS ( Light sensor ) VDD_3V3_PEX_CTL_TEGRA ViewSonic Corporation VSD241/SD-A245/CDS245 Confidential - Do Not Copy...
  • Page 21 VDD_CORE_SENSE GND_104 GND_105 GND_CORE_SENSE VDD_CORE_SENSE_PAIR 90DIFF_NETCLASS1 GND_CORE_SENSE GND_106 GND_107 GND_108 VDD_3V3_FUSE_TEGRA GND_109 GND_110 GND_111 (3.3V) VPP_FUSE GND_112 VPP_KFUSE GND_113 (3.3V) VPP_KFUSE GND_114 GND_115 GND_116 GND_117 10K_4 GND_118 *1K_4 0.1uF/16V_4 GND_119 GND_120 GND_121 ViewSonic Corporation VSD241/SD-A245/CDS245 Confidential - Do Not Copy...
  • Page 22 Addr = 7'h4C JTAG_TCK JTAG_TCK JTAG_TDI NCT72CMTR2G JTAG_TDI JTAG_TDI JTAG_TDO 10K_4 10K_4 JTAG_TDO JTAG_TDO JTAG_TMS JTAG_TMS JTAG_TMS JTAG_TRST JTAG_TRST* TEMP_ALERT# JTAG_RTCK JTAG_RTCK JTAG_RTCK DMG1012T-7 THERMD_N THERM_DN THERMD_P THERM_DP T30_ONE_WIRE AC18 HDMI_CEC TEST_MODE_EN *Short_4 TEST_MODE_EN ViewSonic Corporation VSD241/SD-A245/CDS245 Confidential - Do Not Copy...
  • Page 23 17,18 DDR_CLKP 90DIFF_NETCLASS1 DDR_CLK DDR_CLKP 17,18 VDD_1V35_DDR3_TEGRA DDR_RESET* DDR_RESET 2.2p/50V_4 DDR_QUSE0 DDR_QUSE0 DDR_QUSE1 DDR_QUSE1 DDR_QUSE2 CLOSE TO TEGRA PINS DDR_QUSE2 DDR_QUSE3 10K_4 DDR_QUSE3 DDR_RESET* 17,18 VDD_1V35_DDR3_TEGRA DDR_COMP_PU 40.2/F_4 DDR_COMP_PU DDR_COMP_PD 40.2/F_4 DDR_COMP_PD ViewSonic Corporation VSD241/SD-A245/CDS245 Confidential - Do Not Copy...
  • Page 24 2.2K_4 I2C Write : 0x20 or 0x22 VDD_3V3_SYS I2C Read : 0x21 or 0x23 C608 GEN2_I2C_SCL_3V3 *0.1uF/16V_4 GEN2_I2C_SCL GEN2_I2C_SCL_3V3 GEN2_I2C_SDA_3V3 GEN2_I2C_SDA GEN2_I2C_SDA_3V3 CN33 R954 *0_4 GEN2_I2C_SCL_3V3 R952 *0_4 GEN2_I2C_SDA_3V3 R953 *0_4 *Debug_Port ViewSonic Corporation VSD241/SD-A245/CDS245 Confidential - Do Not Copy...
  • Page 25: Ad27 En_Vdd_Sdmmc1

    AD30 VI_D01 AH29 VI_D02 AG28 VI_D03 AE27 LVDS_SHTDN# VI_D04 LVDS_SHTDN# AE25 VI_D05 AG29 EN_CODEC_LDO1 VI_D06 EN_CODEC_LDO1 AD29 VI_D07 AE29 EN_3V3_FUSE VI_D08 EN_3V3_FUSE AD28 EN_2V8_SENSOR VI_D09 EN_2V8_SENSOR AE30 VI_D10 AE28 SDMMC_WP* VI_D11 SDMMC_WP* ViewSonic Corporation VSD241/SD-A245/CDS245 Confidential - Do Not Copy...
  • Page 26 (1.8/2.8 ~ 3.3V) VDDIO_CAM CAM_I2C_SCL_1V8 T260 VDDIO_CAM CAM_I2C_SCL CAM_I2C_SDA_1V8 T261 CAM_I2C_SDA CAM_MCLK_0 T255 CAM_MCLK 4.7u/10V_6 0.1uF/16V_4 GPIO_PBB0 GPIO_PBB3 T232 EN_1V8_CAM GPIO_PBB4 EN_1V8_CAM GPIO_PBB5 T257 GPIO_PBB6 T258 GPIO_PBB7 T259 GPIO_PCC1 GPIO_PCC1 TOUCH_SEL GPIO_PCC2 TEMP_ALERT# ViewSonic Corporation VSD241/SD-A245/CDS245 Confidential - Do Not Copy...
  • Page 27 AC10 MB_ID2 MB_ID1 LCD_CS1* AJ13 SNN_LCD_SDOUT MB_ID2 LCD_SDOUT T233 AH10 LCD_SDIN AE15 LCD_DC0 AE12 LCD_DC1 VDDIO_LCD AD13 CRT_HSYNC AJ16 2.2K_4 2.2K_4 CRT_VSYNC AG14 DDC_SCL HDMI_DDC_SCL AJ10 DDC_SDA HDMI_DDC_SDA AG13 HDMI_HPD HDMI_INT HDMI_HPD ViewSonic Corporation VSD241/SD-A245/CDS245 Confidential - Do Not Copy...
  • Page 28 1K/F_4 VDD_1V8_SYS VDD_1V8_SYS 0.1uF/16V_4 bga728-nvidia-t30l-r-p-a3 DMN2400UV-7 COMMON HB_CON_HOTPLUG HDMI_HPD 9/22 VDAC HB_CON_HOTPLUG HDMI_HPD SNN_AVDD_VDAC SNN_VDAC_R *1.8K/F_4 AVDD_VDAC VDAC_R SNN_VDAC_G (2.8V) VDAC_G SNN_VDAC_B VDAC_B SNN_VDAC_VREF VDAC_VREF SNN_VDAC_RSET 4.7K_4 HB_DDC_SCL VDAC_RSET 5V_HDMI 4.7K_4 HB_DDC_SDA ViewSonic Corporation VSD241/SD-A245/CDS245 Confidential - Do Not Copy...
  • Page 29 R783 10K_4 USB3: Host SNN_T30_USB3_VBUS IC_USB, Not used USB3_VBUS bga728-nvidia-t30l-r-p-a3 COMMON DMG1012T-7 To HUB/LAN USB3_DN USB3_DN 16/22 IC_USB USB3_DP AVDD_IC_USB IC_USB_DN USB3_DP (1.8V) IC_USB_DP SNN_T30_USB3_ID USB3_ID CORE_PWR_REQ 4,37 IC_USB_REXT USB_REXT USB_REXT 1K/F_4 ViewSonic Corporation VSD241/SD-A245/CDS245 Confidential - Do Not Copy...
  • Page 30 SDMMC3_DAT1 WIFI-SDIO SDMMC3_DAT2 SDMMC3_DAT2 SDMMC3_DAT3 SDMMC3_DAT3 4.7u/10V_6 0.1uF/16V_4 SDMMC3_DAT4 EN_3V3_EMMC SDMMC3_DAT5 EN_3V3_COM SDMMC3_DAT6 WF_EN_R R681 WF_EN SDMMC3_DAT7 T241 SDMMC3_CLK SDMMC3_CLK WIFI-SDIO SDMMC3_CMD SDMMC3_CMD SDMMC3_COMP_PU R103 33.2/F_4 SDMMC3_COMP_PU VDD_1V8_SDMMC3_TEGRA SDMMC3_COMP_PD R104 33.2/F_4 SDMMC3_COMP_PD ViewSonic Corporation VSD241/SD-A245/CDS245 Confidential - Do Not Copy...
  • Page 31 SPDIF_IN T244 SPDIF_OUT T200 SPI1_SCK T239 SPI1_CS0* T199 SPI1_MOSI T198 SPI1_MISO T212 SPI2_SCK EN_1V8_DMIC R763 *Short_2 SPI2_CS0* NFC_UPLOAD Wake SPI2_CS1* JACK_DETECT# Wake R1743 *Short_2 SPI2_CS2* CDC_IRQ R764 *Short_2 SPI2_MOSI NFC_IRQ SPI2_MISO T197 ViewSonic Corporation VSD241/SD-A245/CDS245 Confidential - Do Not Copy...
  • Page 32 ULPI_DIR T206 UART4: For SQA ULPI_NXT T207 ULPI_STP T208 Note: 'EN_VDD_SDMMC1' reserved for power gating DAP3_DIN DAP3_DOUT GPIO DAP3_FS DAP3_SCLK NFC_EN_GPIO AP_ONKEY* Wake GPIO_PV0 AP_ONKEY* For AP_ONKEY# Wake GPIO_PV1 For AP_ACOK# T209 ViewSonic Corporation VSD241/SD-A245/CDS245 Confidential - Do Not Copy...
  • Page 33 R729 *0_4 EN_3V3_PU T235 PEX_L0_RST AD26 EN_USB3_VBUS_OC* PEX_L1_CLKREQ 4.7u/10V_6 AD24 EN_USB4_VBUS_OC* PEX_L1_PRSNT AG27 W_DISABLE* PEX_L1_RST AC21 PEX_L2_CLKREQ AE22 PEX_L2_PRSNT AG25 PEX_L2_RST AF22 PEX_WAKE AJ28 PEX_TESTCLKN AH28 PEX_TESTCLKP AG20 PEX_TERMP R125 2.49K/F_4 PEX_TERMP ViewSonic Corporation VSD241/SD-A245/CDS245 Confidential - Do Not Copy...
  • Page 34 AE14 NC_8 AE17 NC_9 AE20 NC_10 NC_11 NC_12 NC_13 NC_14 NC_15 NC_16 NC_17 NC_18 NC_19 NC_20 NC_21 NC_22 NC_23 NC_24 NC_25 NC_26 NC_27 NC_28 NC_29 NC_30 NC_31 NC_32 NC_33 NC_34 NC_35 NC_36 ViewSonic Corporation VSD241/SD-A245/CDS245 Confidential - Do Not Copy...
  • Page 35 DDR_DQ3 DDR_DQ15 DDR_DQ4 DDR_DQ9 DDR_DQ5 DDR_DQ13 DDR_DQ6 DDR_DQ14 DDR_DQ7 DDR_DQ10 SNN_M0_NC_A8 SNN_M1_NC_A8 T178 T180 NC/TDQS* NC/TDQS* DDR_DM0 DDR_DM1 DQM/TDQS DQM/TDQS DDR_DM0 DDR_DM1 DDR_DQS0P DDR_DQS1P DDR_DQS0P DDR_DQS1P DDR_DQS0N DDR_DQS1N DDR_DQS0N DQS* DDR_DQS1N DQS* ViewSonic Corporation VSD241/SD-A245/CDS245 Confidential - Do Not Copy...
  • Page 36 DDR_DQ20 DDR_DQ29 DDR_DQ19 DDR_DQ31 DDR_DQ23 DDR_DQ28 DDR_DQ16 DDR_DQ26 DDR_DQ17 DDR_DQ30 SNN_M2_NC_A8 SNN_M3_NC_A8 T182 T184 NC/TDQS* NC/TDQS* DDR_DM2 DDR_DM3 DQM/TDQS DQM/TDQS DDR_DM2 DDR_DM3 DDR_DQS2P DDR_DQS3P DDR_DQS2P DDR_DQS3P DDR_DQS2N DDR_DQS3N DDR_DQS2N DQS* DDR_DQS3N DQS* ViewSonic Corporation VSD241/SD-A245/CDS245 Confidential - Do Not Copy...
  • Page 37 SDMMC1_CD *PAD SDMMC1_CMD MMC1CMD I/O 3 *PAD SDMMC1_CLK *PAD SDMMC1_DAT0 MMC1CLKO I/O 4 *PAD SDMMC1_DAT1 SDMMC1_DAT2 MMC1DAT0 *PAD I/O 5 *PAD SDMMC1_DAT3 MMC1DAT1 I/O 6 RClamp0506T MMC1CD ESD1 RClamp0531T MMC1WP ESD29 RClamp0531T ViewSonic Corporation VSD241/SD-A245/CDS245 Confidential - Do Not Copy...
  • Page 38 *0_4 U_SEL USB_TYPE_BD- USB_TYPE_BD+ DP0_FB MINIUSB_ID C283 TOUCH_SEL USB-ID DCC0904N017 0.1uF/16V_4 USB2064_DP USB2_DP USB2_DP R375 *0_4 USB2064_DN USB2_DN USB2_DN T162 MINI_USB USB_EN DM0_FB RClamp0531T ESD14 R376 DP0_FB RClamp0531T ESD15 MINI_OTG_ID 6,20 *Short_4 ViewSonic Corporation VSD241/SD-A245/CDS245 Confidential - Do Not Copy...
  • Page 39 JTAG nTRST C181 33p/50V_4 XTALO T102 E3SB25.0000F18E22(25 MHz) xtl-3_2x2_5-2_2-1_6 VDD33IO_9513 VDD33IO_9513 LAN9514 qfn64-9x9-5-65p-lan9514 EECS EECLK EEDO C182 EEDI R202 R203 R204 R205 0.1uF/16V_4 10K_4 10K_4 10K_4 10K_4 AT93C66DN R206 SOIC8-6-1_27 nTRST 10K_4 ViewSonic Corporation VSD241/SD-A245/CDS245 Confidential - Do Not Copy...
  • Page 40 10p/3KV_18 SHELL SHELL RP46 0_4P2R R222 560_6 LAN_ACT_LED_PWR +3V_9513 LAN_ACT# LAN_ACT# Marvin 0227 C100JF-10805-L C449 1000p/50V_4 RJ45(LAN) LAN_LINK# CN37 LAN_ACT# +3V_9513 LAN_LINK# X_TXP X_TXN C195 C196 *0.1u/16V_4 *0.1u/16V_4 X_RXN X_RXP LAN_ACT# 85205-1000L ViewSonic Corporation VSD241/SD-A245/CDS245 Confidential - Do Not Copy...
  • Page 41 AR18 AGND 10K_4 *10K_4NC CV02220MZ01 AGND GAIN0 AGND AC26 1u/25V_6 AVCC1 GAIN1 GAIN0 GAIN ( dB ) GAIN1 AR19 *10K_4 AVCC1 R941 R942 AR20 AR21 AGND R943 *0_4 R944 AGND AGND AGND ViewSonic Corporation VSD241/SD-A245/CDS245 Confidential - Do Not Copy...
  • Page 42 0.1uF_4 R828 22_4 AGND SC_WCLK_R C630 *15p/50V_4 AGND R781 *10K_4 VDD_1V8_AUDIO Headphone Jack PHONEJACK STEREO T112 T115 T113 R685 10K_4 JACK_DETECT# R284 HP_DET_J JACK_DETECT# HPO_L *PBY160808T-121Y-N EARPHONE_L EARPHONE_L HPO_R *PBY160808T-121Y-N EARPHONE_R EARPHONE_R ViewSonic Corporation VSD241/SD-A245/CDS245 Confidential - Do Not Copy...
  • Page 43 JTAG_TCK JTAG_TCK JTAG_TCK JTAG_RTCK JTAG_RTCK JTAG_RTCK JTAG_TDO JTAG_TDO JTAG_TDO SYS_RESET_IN R592 SYS_RESET_IN R382 R384 R383 R385 R386 100K_4 10K_4 *100K_4 100K_4 100K_4 CN11 TOUCH SWITCH 5P T139 UART1_RX UART1_TX T140 T141 DEBUG-CON ViewSonic Corporation VSD241/SD-A245/CDS245 Confidential - Do Not Copy...
  • Page 44 SDMMC3_DAT0_0 SDMMC3_DAT0 R704 *Short_2 SDMMC3_DAT3_0 SDMMC3_DAT3 R705 *Short_2 SDMMC3_DAT1_0 SDMMC3_DAT1 SDMMC3_CMD_0 R318 *Short_2 SDMMC3_CMD CN25 CN22 CN23 CN24 CN27 SHIELDING_CLIP SHIELDING_CLIP SHIELDING_CLIP SHIELDING_CLIP SHIELDING_CLIP WL_GPIO6 BT_SHUTDOWN_N BT_RST_N WL_SHUTDOWN_N_RST_N CN28 CN29 SHIELDING_CLIP SHIELDING_CLIP ViewSonic Corporation VSD241/SD-A245/CDS245 Confidential - Do Not Copy...
  • Page 45 C273 4.7u/10V_6 Read : 0x3D R354 10u/6.3V_6 EN_1V8_SENSOR Write : 0x3C ON/OFF Vih = 1.1V G5287RR1U R770 10K_4 VDD_2V8_SENSOR VDD_3V3_SYS VOUT C275 C276 R358 2.2u/6.3V_4 2.2u/6.3V_4 Vih = 1.2V G9090-280T11U EN_2V8_SENSOR R771 10K_4 ViewSonic Corporation VSD241/SD-A245/CDS245 Confidential - Do Not Copy...
  • Page 46 Camera 3.3V VDD_1V8_GEN DMIC_BIAS Camera 3.3V VDD_3V3_SYS VUSB3V3_CAM C609 C611 C279 C607 C610 4.7u/10V_6 C278 4.7u/10V_6 R975 10u/6.3V_6 10u/6.3V_6 EN_1V8_DMIC ON/OFF R973 10u/6.3V_6 10u/6.3V_6 EN_1V8_CAM ON/OFF G5287RR1U G5287RR1U R980 10K/F_4 R974 10K/F_4 ViewSonic Corporation VSD241/SD-A245/CDS245 Confidential - Do Not Copy...
  • Page 47 VODSEL *10K_4 10K_4 *10K_4 *10K_4 *10K_4 R277 *Short_2 MODE1 MODE0 VODSEL LVDS_SHTDN# MODE0 MODE1 R749 R278 R279 R280 R281 R282 10K_4 10K_4 *10K_4 10K_4 10K_4 L:Falling edge MODE Normal operation Power down ViewSonic Corporation VSD241/SD-A245/CDS245 Confidential - Do Not Copy...
  • Page 48 10K_4 PWRON_IN SCALER_ID R663 SCALER_ID def:H NC7SB3157P6X_NL scaler on:L C416 0.1uF/16V_4 VDD_5V0_SBY R664 *0_4 R957 VDD_5V0 10K_4 R665 SOC_PW_ON ONKEY* R956 R666 POWER_ON_PS_ON ONKEY* SCALER_ID R667 def:H NC7SB3157P6X_NL scaler on:L C417 0.1uF/16V_4 ViewSonic Corporation VSD241/SD-A245/CDS245 Confidential - Do Not Copy...
  • Page 49 R849 100_4 SDA_HDMI1 R850 100_4 MHL1_OC HDMI1_SCL R422 *Short_4 HA_DDC_SCL_SC VDD_5V0 HDMI1_SDA R426 *Short_4 HA_DDC_SDA_SC R831 10K_4 G5250L2T1U EDID_W P 32,33 VBUS_PW 1 R833 R834 100_4 VBUS_CTR1 C538 10u/10V_8 100K_4 R835 10K_4 ViewSonic Corporation VSD241/SD-A245/CDS245 Confidential - Do Not Copy...
  • Page 50 *0_4 R440 100_4 HB_DDC_SCL HB_DDC_SCL 10,33 R441 100_4 HB_DDC_SDA VDD_3V3_SCALER HB_DDC_SDA 10,33 R674 SOC_TX C296 5V_HDMI SCL_SC_RX R675 SCL_SC_RX GEN2_I2C_SCL_SC TXRX_I2C_3V3 R672 *Short_4 0.1uF/16V_4 R442 *10K_4 NC7SB3157P6X_NL C419 0.1uF/16V_4 EDID_W P 31,33 ViewSonic Corporation VSD241/SD-A245/CDS245 Confidential - Do Not Copy...
  • Page 51 ADKEY1 SC_USBHUB_RST ADKEY2 R970 *1K_4 SC_ADKEY2 SC_UART_INT SC_SYS_RSTIN_3V3 ADKEY2 SC_SYS_RSTIN_3V3 R919 T269 R963 R960 R918 *0_4 T270 *330_6 1% *100_6 on_AUDIOPVDD R917 T271 SCALER_ID SOC_WAKE LED_A LED_B LED_A LED_B I2C address: ??H ViewSonic Corporation VSD241/SD-A245/CDS245 Confidential - Do Not Copy...
  • Page 52 = 105.1K (ohm) ---> 105Kohm (PR136) Vref=2V R1= (Vout-2) * R2 / 2 PR22 PR23 PR24 for Heat Sink AGND_DC/DC H-C315D169P2 H-C315D169P2 H-C315D169P2 H-C315D138P2 H-C276D163P2 H-C276D163P2 H-C315D169P2 H-C315D169P2 H-C315D169P2 H-C315D138P2 H-C276D163P2 H-C276D163P2 ViewSonic Corporation VSD241/SD-A245/CDS245 Confidential - Do Not Copy...
  • Page 53 PWR_1D5V_VDDQS TRIP VDDQS V2REF_DDR3 C350 VTTIN VTERM_DDR3 VDD_1V35_DDR3_BUCK 330p/50V_4 VTTREF VDD_1V35_DDR3_BUCK 52.3K/F_4(28.7K/F_4) PR29 PR30 PC38 200K/F_4 51K/F_6 PC61 PC39 PC40 VTTS 10u/10V_6 C352 0.1uF/16V_4 10u/10V_6 10u/10V_6 PC63 C486 VTTGND 1u/10V_4 *180p/50V_4 0.1uF/16V_4 ViewSonic Corporation VSD241/SD-A245/CDS245 Confidential - Do Not Copy...
  • Page 54 C358 C354 C355 C356 R563 C357 C359 1u/10V_4 R564 DMP3056LSS 22uF_8 22uF_8 0.1uF/16V_4 330K_6 100K_6 0.1uF/16V_4 150u/6.3V_3528 C360 R565 2.2K_4 0.1uF/16V_4 MMBT3904 R754 on_PANEL on_PANEL on_PANEL_PW R755 *0_4 EN_VDD_PNL EN_VDD_PNL R566 10K_4 ViewSonic Corporation VSD241/SD-A245/CDS245 Confidential - Do Not Copy...
  • Page 55 VRTC AGND3 C366 AGND4 2.2u/6.3V_4 AGND5 AGND6 AGND7 AGND8 VDD_0V85_PMU_VREF AGND9 AGND10 0.85V 0.05A AGND11 VREF (Ouput) AGND21 C367 AGND22 10p/50V_4 DGND1 DGND2 REFGND DGND3 PMU_AGND PMU_AGND R710 R709 R711 R712 PMU_AGND ViewSonic Corporation VSD241/SD-A245/CDS245 Confidential - Do Not Copy...
  • Page 56 LDO5 30MIL VCC4 C374 C375 4.7u/10V_6 2.2u/6.3V_4 AVDD_1V2_DSI_CSI_TEGRA R584 VDD_1V8_LDO_IN AVDD_1V2_PLL_TEGRA AVDD_1V2_DSI_CSI_PMU 0.1A 1.2V LDO6 VCC3 VDD_1V0_DDR_HS_TEGRA R585 C376 AVDD_1V2_PLL_PMU LDO7 4.7u/10V_6 VDD_1V0_DDR_HS_PMU R586 LDO8 C377 C378 C379 2.2u/6.3V_4 2.2u/6.3V_4 2.2u/6.3V_4 PTPS6591102A2ZRC ViewSonic Corporation VSD241/SD-A245/CDS245 Confidential - Do Not Copy...
  • Page 57 Note: Test-points can be deleted if not routeable with non-hdi PMU_TRAN T152 *PAD TRAN GNDC1 GNDC2 PMU_TRIP R587 39K/F_4 TRIP VDD_3V3_PMU VDD_1V8_GEN 2.2uH_2A SWIO1 PMU_SWIO VCCIO1 VCCIO2 SWIO2 C391 C392 10u/10V_6 ( 1.5A @ 1.5/1.8/2.2/3.3V) 10u/6.3V_6 1.5A GNDIO1 GNDIO2 VFBIO PTPS6591102A2ZRC ViewSonic Corporation VSD241/SD-A245/CDS245 Confidential - Do Not Copy...
  • Page 58 PWR_I2C_SDA_1V8 PGND1 PGND2 EN_VDD_SOC PGND3 PR43 360KF_4 PR44 360KF_4 TPS62361_VSEL0 EN_5V_CHARGEPUMP VSEL0 TPS62361_VSEL1 VSEL1 AGND PR45 360KF_4 Vih = 1.2V Vil = 0.4V TPS62361_SGND PR46 PR47 for TPS62361B *0_4 *0_4 PR48 TPS62361_SGND ViewSonic Corporation VSD241/SD-A245/CDS245 Confidential - Do Not Copy...
  • Page 59 1u/10V_4 EN_3V3_EMMC Vil = 0.6V Vih = 1.2V ~3.6V VDD_3V3_SDCARD (Optional) VDD_3V3_SYS TPS22924CYZPR 0.5A 30MIL 3.3V VIN1 VOUT1 VIN2 VOUT2 C403 C402 0.47u/6.3V_4 1u/10V_4 EN_VDD_SDMMC1 Vil = 0.6V Vih = 1.2V ~3.6V ViewSonic Corporation VSD241/SD-A245/CDS245 Confidential - Do Not Copy...
  • Page 60 AGND AR47 0R_6 AR48 0R_6 AR49 0R_6 AR50 0R_6 MUTE AVDD_3V3_SPK_AMP VDD_5V0 GAIN1 GAIN0 GAIN ( dB ) R320 R321 *10K_6NC 10K_4/NC AMP_MUTE_W AR62 *0R_6NC AUDIO_MUTE MUTE# 24,33 AUDIO_MUTE 2N7002E R322 *4K7_6NC ViewSonic Corporation VSD241/SD-A245/CDS245 Confidential - Do Not Copy...
  • Page 61 G5287RR1U C225 C226 10uF_4 R371 10K/F_4 0.1uF/16V_4 PI5C3253 I2C2_SCL_3V R366 GEN2_I2C_SCL_3V3 R367 I2C3_SCL_3V GEN2_I2C_SDA_3V3 GEN2_I2C_SCL_SC T280 I2C2_SCL_3V GEN2_I2C_SCL_SC I2C2_SDA_3V R368 T282 GEN2_I2C_S0 R369 T281 I2C3_SCL_3V GEN2_I2C_S1 I2C2_SDA_3V I2C3_SDA_3V T283 I2C3_SDA_3V GEN2_I2C_SDA_SC GEN2_I2C_SDA_SC ViewSonic Corporation VSD241/SD-A245/CDS245 Confidential - Do Not Copy...
  • Page 62 5-2. MIC Board *33p/50V_4 DMIC_DATA *33p/50V_4 DMIC_CLK MP45DT02TR DMIC_VCC DMIC_DATA DMIC_VCC DATA DMIC_CLK R2 *10K/F_2 10u/6.3V_6 0.1u/16V_4 DMIC_VCC DMIC_DATA DMIC_CLK 50207-00471-001 hg-c217d110p2 hg-c217d110p2 ViewSonic Corporation VSD241/SD-A245/CDS245 Confidential - Do Not Copy...
  • Page 63: Layout Side View

    6. Layout Side View LAYOUT SIDE VIEW Index of this chapter: 6-1. Main Board 6-2. MIC Board ViewSonic Corporation VSD241/SD-A245/CDS245 Confidential - Do Not Copy...
  • Page 64 6-1. Main Board ViewSonic Corporation VSD241/SD-A245/CDS245 Confidential - Do Not Copy...
  • Page 65 ViewSonic Corporation VSD241/SD-A245/CDS245 Confidential - Do Not Copy...
  • Page 66 6-2. MIC Board DA0UI1TB4B0 REV:B PROJECT PROJECT PROJECT PROJECT PROJECT PROJECT SK_TOP UI1-MIC DATE DATE DATE DATE DATE DATE LAYER LAYER LAYER LAYER LAYER LAYER 16.5 04/22/13' REV. REV. REV. REV. REV. REV. DA0UI1TB4B0 ViewSonic Corporation VSD241/SD-A245/CDS245 Confidential - Do Not Copy...
  • Page 67 PROJECT PROJECT PROJECT PROJECT PROJECT PROJECT UI1-MIC DATE DATE DATE DATE DATE DATE LAYER LAYER LAYER LAYER LAYER LAYER 16.5 04/22/13' REV. REV. REV. REV. REV. REV. DA0UI1TB4B0 ViewSonic Corporation VSD241/SD-A245/CDS245 Confidential - Do Not Copy...
  • Page 68: Exploded View

    7. Exploded View ViewSonic Corporation VSD241/SD-A245/CDS245 Confidential - Do Not Copy...
  • Page 69 ViewSonic Corporation VSD241/SD-A245/CDS245 Confidential - Do Not Copy...
  • Page 70 SCALE 0.400 PART_NO DESCRIPTION REMARK index q'ty 34UI1LBVS00 UI1A LCD BEZEL SUB ASSY 35UI1RCVS00 UI1A REAR COVER SUB ASSY FBUI1006010 HINGE UI1A CJE EBUG1003010 IO COVER UG1(EBUG1003,R3A) ViewSonic Corporation VSD241/SD-A245/CDS245 Confidential - Do Not Copy...
  • Page 71 ViewSonic Corporation VSD241/SD-A245/CDS245 Confidential - Do Not Copy...
  • Page 72 QA PASS LABEL_PA UI2A(HCUI2007,R3A) HDUI1001010 QSG MAN UI1A(HDUI1001,R3A) GCUI1008010 EPE CUSHION DOWN UI1A(GCUI1008,REV3A) HFUI1001010 CARTON UI1A(HFUI1001,R3A) JXUI2001010 HANDLE UPPER UI2(JXUI2001,REV3A) JXUI2002010 HANDLE DOWN UI2(JXUI2002,REV3B) HCUI2001010 ID LABEL UI2(HCUI2001,REV3B) HCUI2003010 CARTON LABEL UI2(HCUI2003,REV3A) 12 ViewSonic Corporation VSD241/SD-A245/CDS245 Confidential - Do Not Copy...
  • Page 73: Trouble Shooting

    (1) Make sure the USB cable is connected properly USB Function USB anomaly (2) Check MB (1) Make sure the RJ45 cable is connected properly LAN Function LAN anomaly (2) Check MB ViewSonic Corporation VSD241/SD-A245/CDS245 Confidential - Do Not Copy...
  • Page 74 8-1. Touch SOP Touch Screen Trouble Shooting Guide ViewSonic Corporation VSD241/SD-A245/CDS245 Confidential - Do Not Copy...
  • Page 75 Save the time and money spent in the shipment of fail samples and traffic. A better way to help customer identify the defects and tune the processes. ViewSonic Corporation VSD241/SD-A245/CDS245 Confidential - Do Not Copy...
  • Page 76 2 or 3 sensor cables.(depending on models) 3. Any components damaged, foreign matters cover sensor and reflector, and other causes affect image quality, they will further affect touch function. System Controller Cable Board Sensor Sensor Cable Cable Sensor ViewSonic Corporation VSD241/SD-A245/CDS245 Confidential - Do Not Copy...
  • Page 77: Trouble Shooting Flow Chart

    S/N Pairing Mechanical Inspection Check Check Inspection Pass Fail OS setting Check Appearance Connection Connection Inspection Inspection Inspection Mechanical Inspection Appearance Appearance Design Guide Inspection Inspection Review Appearance Inspection Design Guide Review ViewSonic Corporation VSD241/SD-A245/CDS245 Confidential - Do Not Copy...
  • Page 78 Function abnormal (Broken drawing line or partial area no function) Exchange the potential fail component by a good one to focus the fail part Controller board fail Glass sensor module fail Back to Flowchart ViewSonic Corporation VSD241/SD-A245/CDS245 Confidential - Do Not Copy...
  • Page 79 If the LED is working normal, it looks like a bright purple spot. If the LED is off, focus the inspection on that camera module and the connection of it. Back to Flowchart ViewSonic Corporation VSD241/SD-A245/CDS245 Confidential - Do Not Copy...
  • Page 80 Check the HID of touch screen is installed in the OS. 0408, PID is depend on model) If the device is detected, it means the controller board and USB connection is normal. Back to Flowchart ViewSonic Corporation VSD241/SD-A245/CDS245 Confidential - Do Not Copy...
  • Page 81 Inspect all connectors is complete and all pins in the connectors are not bent. Test the cables by a multimeter to check all wires in the cables are connecting normal. Sensor Sensor Connector Cable Controller Connector Cable Back to Flowchart ViewSonic Corporation VSD241/SD-A245/CDS245 Confidential - Do Not Copy...
  • Page 82 Because the calibration data of all touch modules are different, be sure to pair the controller board and glass module correctly. Mismatch will cause touch function inaccuracy. Controller Glass Board Module Back to Flowchart ViewSonic Corporation VSD241/SD-A245/CDS245 Confidential - Do Not Copy...
  • Page 83 A calibration function is build in Windows OS, but wrong calibration setting will cause touch inaccuracy. Clean the calibration data and retest, when the touch screen is panel. Reset Back to Flowchart ViewSonic Corporation VSD241/SD-A245/CDS245 Confidential - Do Not Copy...
  • Page 84 Force Force Force Force Force Force Light is scattered by bending glass The signal/noise rate will be lower and affect the accuracy Force Force Back to Flowchart ViewSonic Corporation VSD241/SD-A245/CDS245 Confidential - Do Not Copy...
  • Page 85 Components are all normal on PCB board. The cables of the camera modules are all complete and not broken. Lens of camera modules are complete and not covered by objects. broken Transmitter Burn out Next Page ViewSonic Corporation VSD241/SD-A245/CDS245 Confidential - Do Not Copy...
  • Page 86 The CID document is the standard for appearance inspection The reflector is complete and fixed on glass. The protection film is flat or removed. CID Document Reflector Fall off Reflector Fall off Protection Film Back to Flowchart ViewSonic Corporation VSD241/SD-A245/CDS245 Confidential - Do Not Copy...
  • Page 87 Design Guide and Check List: The document describe the design rules of the touch module, including optical, mechanical and EE parts. Customer should follow the design guide to make sure the design is good for optical touch. Back to Flowchart ViewSonic Corporation VSD241/SD-A245/CDS245 Confidential - Do Not Copy...
  • Page 88: Assembly And Disassembly

    9. Assembly And Disassembly ASSEMBLY AND DISASSEMBLY Index of this chapter: 9-1. Assembly SOP 9-2. Disassembly SOP ViewSonic Corporation VSD241/SD-A245/CDS245 Confidential - Do Not Copy...
  • Page 89 The glass assembly must in clean room (Step 1~ Step 5) • The VHB place stick with glass. • Operator clear the metal edge for panel Set short tape for rework and using low viscous tape to stick BKT ViewSonic Corporation VSD241/SD-A245/CDS245 Confidential - Do Not Copy...
  • Page 90 Give the pressure on tape for adhive. The VHB place stick with glass JXUI1002010 TAPE LONG 3M2638 UI1A JXUI1003010 TAPE SHORT 3M2638 UI1A ViewSonic Corporation VSD241/SD-A245/CDS245 Confidential - Do Not Copy...
  • Page 91 Step 3 Checking the glass , touch module and reflect without any appearance’s damage. Using the jig to stick glass and panel ViewSonic Corporation VSD241/SD-A245/CDS245 Confidential - Do Not Copy...
  • Page 92 Make sure there is no dust between panel and To fix the glass and remove the releasing paper of touch sensor module. tape. Using Tool to stick camera Base and Glass. 3LUI1BA0000 3LUI1BA0000 UI1 CAMERA BASE ASSY ViewSonic Corporation VSD241/SD-A245/CDS245 Confidential - Do Not Copy...
  • Page 93 Step 5 Please don’t cover the camera with To fixed to Glass with Gasket. Gasket and stick along with touch camera. GBUI1006010 GASKET TOUCH UI1A ViewSonic Corporation VSD241/SD-A245/CDS245 Confidential - Do Not Copy...
  • Page 94 Please refer below picture to assemble to make sure the operation will not crack the Putting Bezel on protective pads touch camera. 25UI1LAVS00 34UI1LBVS00 34UI1LBVS00 UI1A LCD BEZEL SUB ASSY 25UI1LAVS00 UI1A LCD WITH TOUCH PANEL ASSY ViewSonic Corporation VSD241/SD-A245/CDS245 Confidential - Do Not Copy...
  • Page 95 Assy(M3 Screw) Refer these pictures , along dotted line to put Rubber. MS30050ITW5 SCREW M3.0*5.0-I (NI)(NYLOK) STEEL JXUI1008010 THERMALPAD FOR HEATSINK UI1A 3CUI1PBVS00 UI1A PANEL BKT SUB ASSY GAUI1004010 RUBBER MB UI1A ViewSonic Corporation VSD241/SD-A245/CDS245 Confidential - Do Not Copy...
  • Page 96 1. First , assemble Panel BKT Assy and Panel (MS30050FEZ0*4) Fix Dmic and 2. Fix Panel BKT Assy and Bezel (MS25035I020*6) Bezel(MS25035I020*1) Fix Touch Sensor by acetate tape MM30030ICI5 SCREW M3.0*3,I,NI,NYLOK IRON MS25035I020 SCREW M2.5*3.5-I(BZN)(NYLON PATCH)(IRON) ViewSonic Corporation VSD241/SD-A245/CDS245 Confidential - Do Not Copy...
  • Page 97 Step 9 Remark Backlight Tear off the release paper and align left the KeyPad ViewSonic Corporation VSD241/SD-A245/CDS245 Confidential - Do Not Copy...
  • Page 98 3. connect D-mic( L&R ) and remark 2. connect Camera Board and remark Stick ACID Tape and don’t block mark Assemble Camera Board and Camera Base 5.Connect LVDS and remark 4.Connect Backlight 6.Connect Button board and remark ViewSonic Corporation VSD241/SD-A245/CDS245 Confidential - Do Not Copy...
  • Page 99 Lock in Panel Top BKT Board Connect touch control board cable and remark (MS25045IIE4*5) and lock-in Control Board (MM30030IJ20*2) FBUI1004010 MM30030IJ20 SCREW M3.0*5.0-I (NI)(NYLOK) STEEL FBUI1004010 PANEL TOP BKT UI1A MS25045IIE4 SCREW M2.5*4.5-I(BNI)(NYLOK) ViewSonic Corporation VSD241/SD-A245/CDS245 Confidential - Do Not Copy...
  • Page 100 Tear off the releaser paper and make sure below area which mark Red couldn't put cables. Lock-in Speaker(MS20030PI30*4) Lock-in BTM BKT(MS20030PI30*4) MS20030PI30 SCREW M2.0*3.0-P(NI)IRON Empty FBUI1011010 BTM BKT UI1A MS25045IIE4 SCREW M2.5*4.5-I(BNI)(NYLOK) ViewSonic Corporation VSD241/SD-A245/CDS245 Confidential - Do Not Copy...
  • Page 101 JXUI2017010 ACID TAPE 40*30*0.2 UI2(JXUI2017,REV3A) vertical alignment JXUI2016010 ACID TAPE 20*15*0.2 UI2(JXUI2017,REV3A) JXUI1010010 CONDUCTIVE TAPE UI1A Use vinegar adhesive tape to cable and MB ViewSonic Corporation VSD241/SD-A245/CDS245 Confidential - Do Not Copy...
  • Page 102 Lock-in Hinge UI1A CJE Assemble back cover and lock-in Rear Cover (MM40100BCI2*4) and Bezel (MS30050ITW5*9) 35UI1RCVS00 FBUI1006010 35UI1RCVS00 UI1A REAR COVER SUB ASSY MS30050ITW5 SCREW M3.0*5.0-I (NI)(NYLOK) STEEL FBUI1006010 HINGE UI1A CJE MM40100BCI2 SCREW M4*10.0-B(NI,NYLOK) ViewSonic Corporation VSD241/SD-A245/CDS245 Confidential - Do Not Copy...
  • Page 103 Step 15 Refer below picture to assemble IO Cover EBUG1003010 EBUG1003010 IO COVER UG1 ViewSonic Corporation VSD241/SD-A245/CDS245 Confidential - Do Not Copy...
  • Page 104 9-2. Disassembly SOP Step 1 ViewSonic Corporation VSD241/SD-A245/CDS245 Confidential - Do Not Copy...
  • Page 105 Step 2 ViewSonic Corporation VSD241/SD-A245/CDS245 Confidential - Do Not Copy...
  • Page 106 Step 3 ViewSonic Corporation VSD241/SD-A245/CDS245 Confidential - Do Not Copy...
  • Page 107 Step 4 ViewSonic Corporation VSD241/SD-A245/CDS245 Confidential - Do Not Copy...
  • Page 108 Step 5 ViewSonic Corporation VSD241/SD-A245/CDS245 Confidential - Do Not Copy...
  • Page 109 Step 5 ViewSonic Corporation VSD241/SD-A245/CDS245 Confidential - Do Not Copy...
  • Page 110 Step 6 ViewSonic Corporation VSD241/SD-A245/CDS245 Confidential - Do Not Copy...
  • Page 111 Step 7 ViewSonic Corporation VSD241/SD-A245/CDS245 Confidential - Do Not Copy...
  • Page 112: F/W Update

    10. F/W Update F/W UPDATE Index of this chapter: 10-1. Image Update 10-2. FW Update 10-3. EDID Update 10-4. Region Command ViewSonic Corporation VSD241/SD-A245/CDS245 Confidential - Do Not Copy...
  • Page 113 \NVFlash_PVT_Image\usb_drv_android\android_winusb.inf If you could not find the unknown VSD241, please check if the VSD241 is listed in Portable device category and try to install the driver with the above one. ViewSonic Corporation VSD241/SD-A245/CDS245 Confidential - Do Not Copy...
  • Page 114 7. After the driver has been installed, the image will start to update. If the image is fail to start to update, just re-plug the power cord and process the step 1, 2, 3 & 5. ViewSonic Corporation VSD241/SD-A245/CDS245 Confidential - Do Not Copy...
  • Page 115 10-2. FW update VSD241 Scaler Update SOP    Download the Mstar.zip for Scaler tooling driver. EasyWriter programs (for 32 and  64‐bit) and Scaler firmware UI1A_N2A04.zip  For Windows 32‐bit, you also need to download the Writer_20130329.7z    Extract all the files.    Power on the VSD241 and enter into the Android system.          Install the Scaler tooling board driver with Mstar.zip      1. Open the Device Manager window  Click the Windows Start button  , and right‐click the Computer, browser to the  Properties and then click the Device Manager.          ViewSonic Corporation VSD241/SD-A245/CDS245 Confidential - Do Not Copy...
  • Page 116 2. Connect the Scaler tooling board and VSD241via HDMI cable    3. Connect the Scaler tooling board and NB via USB (Type A to Type B) cable              4. Install Mstar USB Debug Tool  (Please process this step for twice for two Mstar USB Debug Tool)    Mstar USB Debug Tool  ‐> Update Driver Software  ‐> Browse  ‐> Let me pick a list of device drivers on my computer  ‐> Show All Devices    ‐> Have Disk    ‐> Browse  ‐> \Mstar\Cdm20808 ‐> OK  ‐> Next  ‐> Install  ‐> Close      ViewSonic Corporation VSD241/SD-A245/CDS245 Confidential - Do Not Copy...
  • Page 117                       ViewSonic Corporation VSD241/SD-A245/CDS245 Confidential - Do Not Copy...
  • Page 118 5. Install USB Serial Port driver    (The same process as step 4.)    USB Serial Port  ‐> Update Driver Software  ‐> Browse  ‐> Let me pick a list of device drivers on my computer  ‐> Show All Devices    ‐> Have Disk    ‐> Browse  ‐> \Mstar\Cdm20808 ‐> OK  ‐> Next  ‐> Install  ‐> Close    (After the driver has been installed)            ViewSonic Corporation VSD241/SD-A245/CDS245 Confidential - Do Not Copy...
  • Page 119     Use EasyWriter for Windows 32‐bit      1. Execute EasyWriterV2012.1113_XP_W7_32.exe and process the setup      2. Unzip the Writer_20130329.7z          ViewSonic Corporation VSD241/SD-A245/CDS245 Confidential - Do Not Copy...
  • Page 120 3. Execute Writer_20130329.exe                  Click OK            Select FTDI, and Confirm Change      ViewSonic Corporation VSD241/SD-A245/CDS245 Confidential - Do Not Copy...
  • Page 121 Click OK        *** You also could go to Option ‐> Setup ISP tool, to select the FDTI.        ViewSonic Corporation VSD241/SD-A245/CDS245 Confidential - Do Not Copy...
  • Page 122 Go to Option ‐> WP Pin Select      Enable PE0 and click Save        ViewSonic Corporation VSD241/SD-A245/CDS245 Confidential - Do Not Copy...
  • Page 123 Click ISP ON button      Click Load File button      ViewSonic Corporation VSD241/SD-A245/CDS245 Confidential - Do Not Copy...
  • Page 124 Select Files of type with Binary File      Browse the Scaler firmware.    ViewSonic Corporation VSD241/SD-A245/CDS245 Confidential - Do Not Copy...
  • Page 125 Click the Auto button to start the Scaler update.            ViewSonic Corporation VSD241/SD-A245/CDS245 Confidential - Do Not Copy...
  • Page 126     Use EasyWriter for Windows 64‐bit      Please use EasyWriter X64 V14 2013.0204.exe to process all the steps.              ViewSonic Corporation VSD241/SD-A245/CDS245 Confidential - Do Not Copy...
  • Page 127     Check the Scaler firmware version      1. Power on the set and enter into the Android system.    2. Press the power button to enter into sleep mode.  The LED indicator becomes amber color.      3. Press Menu and then power button to wake up the set.  The LED indicator becomes purple color.      (If you are in the Android lock screen, please unlock first.)  And press Menu button again.      ViewSonic Corporation VSD241/SD-A245/CDS245 Confidential - Do Not Copy...
  • Page 128 10-3. EDID update VSD241 EDID Update SOP    Download the TVI_217.zip, PD EDID Tool_1.2.zip and UI1A_VSD241_20130424.zip    1. Power on the set and enter into the Android system.    2. Press the power button to enter into sleep mode.  The LED indicator becomes amber color.      3. Press Menu and then power button to wake up the set.  The LED indicator becomes purple color. (Scaler Factory mode)        (If you are in the Android lock screen, please unlock first.)    4. Connect the Scaler tooling board and NB via USB (Type A to Type B) cable                ViewSonic Corporation VSD241/SD-A245/CDS245 Confidential - Do Not Copy...
  • Page 129 5. Open the Device Manager window  Click the Windows Start button  , and right‐click the Computer, browser to the  Properties and then click the Device Manager.        6. Go to Ports (COM & LPT) and right‐click on the USB Serial Port, select Properties.    ViewSonic Corporation VSD241/SD-A245/CDS245 Confidential - Do Not Copy...
  • Page 130 7. Change to Port Settings page ,and click Advanced button.        8. Change the COM Port Number to COM8.            ViewSonic Corporation VSD241/SD-A245/CDS245 Confidential - Do Not Copy...
  • Page 131 9. Execute the TVI_217.exe and proceed the installation setup.                                                ViewSonic Corporation VSD241/SD-A245/CDS245 Confidential - Do Not Copy...
  • Page 132 10.   After the setup, a window pops up, please click “ This program installed  correctly”.            11.   Execute the TVI_PD_EDID_Tool_V012.exe                    ViewSonic Corporation VSD241/SD-A245/CDS245 Confidential - Do Not Copy...
  • Page 133 12.   Click    to browse the EDID file (*.ddc)      ViewSonic Corporation VSD241/SD-A245/CDS245 Confidential - Do Not Copy...
  • Page 134     13.   Click    to start the EDIE update.   ViewSonic Corporation VSD241/SD-A245/CDS245 Confidential - Do Not Copy...
  • Page 135 10-4. Region command Region command for VSD241    (For image version which is after NVFlash_UI1A_20D0E)  1. Please download the eng build image. (Ex: NVFlash_UI1A_20D0E_eng.zip)      2. Process the adb reboot forced‐recovery step.    3. Go to the NVFlash_xxx_eng folder and execute nvflash400_1G_eng.bat.  The image update will start to proceed.    4. Check USB debugging is enable in Settings > Developer options      5. Connect the VSD241 and NB via Micro USB OTG cable.        ViewSonic Corporation VSD241/SD-A245/CDS245 Confidential - Do Not Copy...
  • Page 136 6. Check the region command listed in the bottom of this document.      7. Execute the cmd command from RUN to open up Command prompt window        8. Type “ adb devices” to make sure the USB connection is OK.  You will find there is a device displayed under the “ List of devices attached “      9. If your region is VSD241‐WTA‐US0, please type  “ adb shell mmc_access w_region_apk en_US 64 ” (Enter)        10.   Process adb reboot forced‐recovery step again and update to user build image.      11.   Go to the NVFlash_xxx folder and execute nvflash400_1G_ user.bat for image  update.        ViewSonic Corporation VSD241/SD-A245/CDS245 Confidential - Do Not Copy...
  • Page 137 Mexico, Panama, Paraguay,  Peru, Uruguay, Venezuela) VSD241‐WTA‐AR0  VSA  adb shell mmc_access w_region_apk es_ARG 64  (Argentina)  VSD241‐WTA‐EU0  VSE  adb shell mmc_access w_region_apk en_GB 64  (United Kingdom,    France (inc Guadeloupe),  Germany, Portugal, Finland,  Turkey) VSD241‐WTA‐EU1  VSE  adb shell mmc_access w_region_apk ru_RU 64  (Russia, Ukraine)  VSD241‐WTA‐AP0  VSI  adb shell mmc_access w_region_apk zh_TW 64  (Taiwan, Singapore, Malaysia,  Thailand, Philippines, Indonesia,  India, Australia, New Zealand,  UAE.)  VSD241‐WTA‐HK0  VSCN  adb shell mmc_access w_region_apk zh_HK 64  (Hong Kong)      ViewSonic Corporation VSD241/SD-A245/CDS245 Confidential - Do Not Copy...
  • Page 138: Recommended Spare Parts List

    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 Notice: 1.
  • Page 139 C. Do you have any other opinions or suggestions 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. ViewSonic Corporation VSD241/SD-A245/CDS245 Confidential - Do Not Copy...

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