CASIO V-T500/V-N500 Series Hardware Manual (Version 1.07) CASIO Computer Co., Ltd. Copyright © 2013. All rights reserved.
Table of the Contents Chapter 1. Introduction 1.1 Feature 1.2 Model Configuration 1.3 Interface Configuration 1.4 External Views 1.4.1 V-T500/V-N500 1.4.2 System Case 1.4.3 LAN/USB Cradle, HA-M62IO 1.4.4 Cradle-type Battery Charger, HA-M30CHG 1.4.5 Dual Battery Charger, HA-M32DCHG 1.4.6 In-vehicle Adaptor, HA-M37CAC 1.4.7 Rechargeable Battery Pack, HA-M20BAT 1.4.8 AC Adaptor, AD-S90190C-N5 1.4.9 AC Adaptor, AD-S36120A-N 1.4.10 Digitizer Pen, AD-S36120A-N 1.4.11 Hand Belt, HA-M95HB 1.4.
.3.4 Dual Battery Charger, HA-M32DCHG 3.3.5 In-vehicle Adaptor, HA-M37CAC 3.3.6 Rechargeable Battery Pack, HA-M20BAT 3.3.7 AC Adaptor 3.4 Compliance 3.4.1 V-T500/V-N500 3.4.2 LAN/USB Cradle, HA-M62IO 3.4.3 Cradle-type Battery Charger, HA-M30CHG 3.4.4 Dual Battery Charger, HA-M32DCHG 3.4.5 Rechargeable Battery Pack, HA-M20BAT 3.1 Performance Reference 3.1.1 Handling Contactless Smart Card Chapter 4. Precautions 4.1 Precautions for Handling and Operating V-T500/V-N500 4.1.
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1. Introduction 1.1 Feature Platform • Android 4.0 Communication capabilities • Built-in wireless LAN module (conforming to IEEE802.11a, IEEE802.11b, IEEE802.11g, and IEEE802.11n) • Bluetooth® Version 4.0 (Class2) • USB version 1.1 (Host/Client) • NFC Dimensions and weight • Outer dimensions • Weight : Approx. 210(W) × 14.4(D) ×190(H) mm : 780 g Shock resistance and splash-proof • Drop resistance : 1.0 m CPU and memory capacity • CPU • Memory capacity OMAP 1.
1.2 Model Configuration Table 1.
Table 1.
1.3 Interface Configuration 802.11a/b/g/n Support Products V-T500/N500 Access Point Bluetooth Support Products Scanner IEEE802.11a/b/g/n Mobilephone GSM/W-CDMA LTE Headset PC Satellite GPS Bluetooth (Ver4.
1.4 External Views 1.4.1 V-T500/V-N500 The following illustrations show external views of the terminal. Figure 1.
Table 1.4 Name and function of each part No. Name 1 2 3 4 5 Power Key Sound Volume Key HDM Connector SD Card Slot Recharge Indicator LED 6 7 Notice Indicator LED Illuminance Sensor 8 9 Inner Camera Display (Touch Panel) 10 11 Microphone NFC Reading Part Key to turn on and off of the power of the terminal. To control of sound volume. For connection with external MIDI equipment. Slot for SD card Lit up with Orange: Under recharge. Blinking with Orange: Battery power is 0% to 5%.
1.4.2 System Case The following illustrations show external views of System Case. Figure 1.3 Table 1.5 Name of each part No. 1 2 3 4 5 6 7 Name Fastener Unit Holder (Upper) Pen Holder Unit Holder (Lower) Magnetic Sensor Pen-type Digitizer Holder Paper Holder Fixture (Upper) No.
1.4.3 LAN/USB Cradle, HA-M62IO The following illustrations show the external views of LAN/USB Cradle, HA-M62IO. Figure 1.4 Table 1.6 Name and function of each part No. 1 2 3 4 5 6 7 8 9 Name Power Supply and Communication Terminals Power Indicator LED Description Terminals for power supply and data communication use. Indicates status of power supply and normal/abnormal installation of the terminal. Lit up with Red: Power is on. The terminal is not installed. Lit up with Green: Power is on.
1.4.4 Cradle-type Battery Charger, HA-M30CHG The following illustrations show the external views of Cradle-type Battery Charger, HA-M30CHG. Figure 1.5 Table 1.7 Name and function of each part No. 1 2 3 4 Name Description Power Supply Terminals Terminals for power supply. Power Indicator LED Indicates status of power supply and normal/abnormal installation of the terminal. Lit up with Red: Power is on. The terminal is not installed. Lit up with Green: Power is on. The terminal is correctly installed.
1.4.5 Dual Battery Charger, HA-M32DCHG The following illustrations show the external views of Dual Battery Charger, HA-M32DCHG. Figure 1.6 Table 1.8 Name and function of each part No. 1 2 3 4 5 Name Description Dual Battery Charger Jack Recharge Status Indicator LED For cable to connect another Dual Battery Charger. Indicates status of recharging Rechargeable Battery Pack.. Lit up with Green: Charging complete.
1.4.6 In-vehicle Adaptor, HA-M37CAC The following illustration shows the external view of In-vehicle Adaptor, HA-M37CAC. Figure 1.7 1.4.7 Rechargeable Battery Pack, HA-M20BAT The following illustration shows the external view of Rechargeable Battery Pack, HA-M20BAT. Figure 1.
1.4.8 AC Adaptor, AD-S90190C-N5 The following illustration shows the external view of the AC Adaptor, AD-S90190C-N5. Figure 1.9 1.4.9 AC Adaptor, AD-S36120A-N The following illustration shows the external view of the AC Adaptor, AD-S36120A-N. Figure 1.
1.4.10 Digitizer Pen, AD-S36120A-N The following illustration shows the external view of Digitizer Pen, HA-M96PEN. Figure 1.11 Table 1.9 Name and function of each part No. 1 2 3 4 5 Name Pen Nibs Quick Button 1 Quick Button 2 Strap Hole Cap Description For touch display. Button which can use by applications. (It is not set up in the initial state.) Button which can use by applications. (It is not set up in the initial state.) To attach the strap including in a package.
1.4.12 Screen Cover, HA-M98DC The following illustration shows the external view of Screen Cover, HA-M98DC. Figure 1.13 1.4.13 Neck Strap, HA-M97ST The following illustration shows the external view of Neck Strap, HA-M97ST. Figure 1.
2. Basic Specifications 2.1 V-T500/V-N500 The basic specifications of V-T-500/V-N500 series (all models) are shown below. Table 2.1 Item Specifications CPU Platform OMAP 1.5GHz Dual Core Android 4.0 Memory RAM: 1GB FROM: 16GB Remarks Display Method Screen Size ISP method TFT Color LCD 10.1 inch Number of Dots Horizontal: 1280 dots × Vertical: 800 dots (VGA) Horizontal: 0.16957mm × Vertical: 0.1695mm 16.
Number of Channels Channel Separation Channel Band Width Out put WLAN 802.11a/b/g/n Standard Communication System Spread Modulation Modulation Method Radio Wave Mode Frequency Transfer Rate Communication Range Number of Channels 79 1MHz 1MHz (2MHz for Low Frequency) 4dBm Max. (Power Class 2) IEEE 802.11a/b/g/n Spread Spectrum Communication System 802.11a/g/n: OFDM (Orthogonal Frequency Division Multiplexing) 802.11b: DSSS (Direct Sequence Spread Spectrum) BPSK, QPSK, CCK, 16QAM, 64QAM 802.
Channel Separation 802.11a/n: 20MHz 802.11b/g/n: 5MHz Channel Band Width Out put 802.11a/b/g/n: 20MHz 802.11a: 12.0dBm Min. Typical 13.5dBm (at 54Mbps) 802.11b: 17.0dBm Min. Typical 18dBm (at 11Mbps) 802.11g: 12.0dBm Min. Typical 14dBm (at 54Mbps) 802.11n: 11.0dBm Min. Typical 12.5dBm (at 72Mbps) Roaming between multiple numbers of access points. Other Function GSM Standard 3GPP release99 Communication functionality Data transfer Packet data Modulation Method Radio Wave Mode Frequency range No.
Channel spacing Channel band width Output power GSM850: 45MHz EGSM900: 45MHz DCS1800: 95MHz PCS1900: 80MHz GSM850: 25×2 MHz EGSM900: 35×2 MHz DCS1800: 75×2 MHz PCS1900: 60×2 MHz 33dBm (850/900MHz bands) 30dBm (1800/1900MHz bands) W-CDMA Standard Communication functionality Data transfer Modulation Method Radio Wave Mode Frequency range No. of Channels Channel spacing Channel band width Output power UMTS/W-CDMA:3GPP release99 HSDPA:3GPP release5 Packet data Downlink: 14.4Mbps Uplink: 5.
GPS General Specifications 16-channel receiver, L1 1575.42MHz, C/A code Positioning Method Sensitivity Standalone-GPS (S-GPS) Acquisition sensitivity: -146dBm Tracking Sensitivity: -162dBm SIM Standard General Specifications ISO 7816 IC Card Standard SIM Card with 3V, 1.8V is supported. Carrier Frequency Antenna Operating Magnetic Field 13.56MHz ±7kHz Magnetic loop antenna Output magnetic field intensity at contact to case. 1.
ISO15693 Yes ISO18092 Communication between terminals ISO18092 Card mode - I-CODE SLI /I-CODE SLI-S /I-CODE SLI-L /my-d V 10 plain /my-d Light /Tag-it plus (See note1) /Tag-it pro /Tag-it standard When data is written into Tag-it, exception error will occur even if it is succeeded to write. Because of that, it's necessary to compare the data (before writing) with the data (after writing). Software unsupported. - Note: 1. Some of the commands remain unsupported.
Item Specifications Remarks SAM Standard General Specification SD Card Slot microSD Card Slot Extension Port USB Connector Type Connector Type Host Transfer Rate Bus Power Output Client Transfer Rate ISO 7816 IC Card Standard SAM card of 1.8V/3V/5V are supported. Supporting SDHC/SDIO cards Supporting SDHC card A miniB Full speed (12Mbps) Low speed (1.
The pin layout below shows when the terminal is viewed at the 1 2 3 4 5 6 7 8 Figure 2.1 Pin layout Table 2.2 Pin assignment table Pin Name Function No. 1 GND GND 2 USB_ID To switch USB to Host or Client. 3 V CRADLE Recharge/Power Supply to The Terminal. 4 D+ USB D+ 5 DUSB D6 V CRADLE Recharge/Power Supply to The Terminal. 7 NONE 8 GND GND Direction OUT - Remarks Output from Cradle IN/OUT IN/OUT - ON OFF Figure 2.2 Switch layout Table 2.3 Switch assignment table No.
Item Power Supply Main battery Backup battery Operating Time Specifications Remarks Lithium Ion Polymer Rechargeable Battery 1 × Lithium Ion Secondary Battery Approx. 10 hours WWAN standby: Approx. 150 hours WWAN continuous communication: Approx. 2 hours Back-up Time (Backup battery only) Back-up Time (Main + Backup battery) Main Battery Recharge Time RAM: 10 minutes RTC: Over 72 hours RAM: 72 hours Recharge Specification Backup battery Recharge Time Refer to Table 2.4. Approx.
Table 2.4 Recharge Specification Recharging method LAN/USB Cradle (HA-M62IO) Cradle-type Charger (HA-M30CHG) Conditions for start of recharge Accessories in the left column are attached to the terminal. 28 Behavior after completion of recharge Recharge will automatically start when the battery voltage made lower than certain level.
2.2 LAN/USB Cradle, HA-M62IO The following table is for the basic specifications of LAN/USB Cradle, HA-M62IO. Table 2.5 Item USB Client Standard Transfer Rate Pin Layout Pin Assignment Table Connector Specifications Remarks Conforming to USB Ver.2.0 Full Speed (12Mbps) High Speed (480Mbps) Refer to Figure 2.3. Refer to Table 2.6. 2 1 4 3 1. VBus 2. -Data (D) 3. +Data (D+) 4. GND USB Connector: B Type USB Host Standard Transfer Rate Bus Power Output Connector Conforming to USB Ver.2.
Recharge/Power Supply Method Hybrid method of contact and contactless type. Method: Inductive coupling type Output voltage: DC12V ±5% Output Current: DC12V 2.0A. Constant Voltage with Current Limiter Approx. 6 hours Contactless Contact Zone Recharge Method Recharge Time By built-in recharge circuitry By built-in recharge circuitry The figure seen from the top. 1 2 3 4 5 6 7 8 Figure 2.3 Pin layout Table 2.6 Pin assignment table Pin Name Function No.
2.3 Cradle-type Battery Charger, HA-M30CHG The following table is for the basic specifications of Cradle-type Battery Charger, HA-M30CG. Table 2.8 Item Specifications AC Adaptor Input Input Voltage Consumption Current Applicable AC Adaptor Recharge/Power Supply Method DC12V ±5% DC12V 3.0A Max. AD-S36120A-N Hybrid method of contact and contactless type. Method: Inductive coupling type Output voltage: DC12V ±5% Output Current: DC12V 2.0A. Constant Voltage with Current Limiter Approx.
Dimensions and Weight Table 2.10 Item Dimensions Weight (g) Specification Approx. 292(W) × 98.5(D) × 64(H) mm Approx.
2.4 Dual Battery Charger, HA-M32DCHG The following table is for the basic specifications of Dual Battery Charger, HA-M32DCHG. Table 2.11 Item Charge Charge Method Recharge Time Power Supply Consumption Current Useable Temperature Useable Humidity Number of Connectable Units Specifications Current Voltage/Constant Current Method For 1 battery pack only set: approx. 4 hours For 2 battery pack set: approx. 6 hours Remarks With built-in current limiter. Normal temperature Recharge 2 battery packs together.
2.5 In-vehicle Adaptor, HA-M37CAC The following table is for the basic specifications of In-vehicle Adaptor, HA-M37CAC. Table 2.13 Item Rated Input Voltage Rated Output Voltage Rated Output Current Cigarette socket Standards Specifications DC12V/24V DC7.5V 3.5A JIS D 5807 DIN Standard socket(DIN ISO 4165) Dimensions and Weight Figure 2.
2.6 Rechargeable Battery Pack, HA-M20BAT The following table is for the basic specifications of Rechargeable Battery Pack, HA-M20BAT. Table 2.14 Item Nominal Capacity Nominal Voltage Specifications Remarks 7000 mAh (25.9Wh) 3.7 V Dimensions and Weight Table 2.15 Item Dimensions Weight (g) Specifications Approx. 135(W) × 94(D) × 7(H) mm Approx. 160 g Remarks Excluding projections. 2.7 AC Adaptors The following table is for the basic specifications of AC Adaptors, AD-S90190C-N5/ AD-S36120A-N. Table 2.
3. Quality Specifications This chapter describes environmental capabilities electrical specifications, mechanical specifications, reliabilities, applicable technical standards, etc., of V-T500/V-500 and Options for it, 3.1 Environmental Capabilities 3.1.1 V-T500/V-N500 The environmental capabilities of V-T500/V-N500 series (all models) is as follows. Table 3.
3.1.3 Cradle-type Battery Charger, HA-M30CHG The environmental capabilities of Cradle-type Battery Charger, HA-M30CHG is as follows. Table 3.3 Item Temperature Operating Non-operating Humidity (Moisture resistance) Operating Non-operating Splash-proof/Dust-proof Storage with package Temperature Humidity (Moisture resistance) Specifications Conditions 0°C to 40°C -20°C to 60°C 10% to 90% RH 5% to 90% RH Not applicable -20°C to 60°C 10% to 90% RH No condensation. No condensation. No condensation. 3.1.
3.1.5 In-vehicle Adaptor, HA-M37CAC The environmental capabilities of In-vehicle adaptor, HA-M37CAC is as follows. Table 3.5 Item Temperature Operating Non-operating Humidity (Moisture resistance) Operating Non-operating Splash-proof/Dust-proof Storage with package Temperature Humidity (Moisture resistance) Specifications Conditions 0°C to 40°C -20°C to 60°C 20% to 80% RH 10% to 90% RH Not Applicable No condensation. -20°C to 60°C 10% to 90% RH 3.1.
3.1.7 AC Adaptor The environmental capabilities of AC Adaptors, AD-S90190C-N5/AD-S36120A-N is as follows. Table 3.7 Item Temperature Operating Non-operating Humidity (Moisture resistance) Operating Non-operating Splash-proof/Dust-proof Storage with package Temperature Humidity (Moisture resistance) Specifications Conditions 0°C to 40°C -20°C to 60°C 20% to 80% RH 10% to 90% RH Not Applicable -20°C to 60°C 10% to 90% RH 39 No condensation.
3.2 Electrical Specifications 3.2.1 V-T500/V-N500 The electrical specifications of V-T500/V-N500 series (all models) are as follows. Table 3.8 Item Current Consumption Electrostatic Tolerance Malfunction Destruction Specification Remarks V-T500-GE: DC4.0A (Rechargeable Battery Pack use.) DC3.0A (AC Adaptor use.) V-T500-E: DC2.6A (Rechargeable Battery Pack use.) DC3.0A (AC Adaptor use.) Contact: ±4KV Air: ±8KV ±12KV 150pF, 330Ω 3.2.
3.2.3 Cradle-type Battery Charger, HA-M30CHG The electrical specifications of Cradle-type Battery Charger, HA-M30CHG is as follows. Table 3.10 Item Input Electrostatic Tolerance Contact Air Momentary Power Failure Line Noise Tolerance Malfunction Specification Remarks DC12V ±5% ±4KV ±8KV 10msec or less 150pF, 330Ω 1000V Pulse frequency: 5kHz Burst time cycle: 300msec Number of pulse: 75 Burst interval: 15msec 3.2.
3.2.5 In-vehicle Adaptor, HA-M37CAC The electrical specifications of In-vehicle Adaptor, HA-M37CAC is as follows. Table 3.12 Item Electrostatic Discharge Immunity Type Test Radiation Field Immunity Type Test Burst Wave Noise Immunity Type Test Serge Noise Immunity Type Test Specification Contact: ±4KV Air: ±8KV Frequency: 80MHz to 1000MHz Field Strength: 3V/m AC input: ±1KV L1-L2: ±1KV L1/L2-PE: ±2KV Remarks It follows the test method of IEC61000-4-2. It follows the test method of IEC61000-4-4.
3.3 Mechanical Specifications 3.3.1 V-T500/V-N500 The mechanical specifications (drop/shock and vibration resistance) of V-T500/V-N500 series (all models) are as follows. Table 3.13 Item V-T500/V-N500 Drop/Shock Strength Vibration Resistance Specifications Conditions V-T500-E unit : 1.0m Drop of 2 cycles for 6 surfaces, 1 corner to concrete the floor. (Test results only, not for guarantee purpose.) V-N500E unit : 1.
3.3.2 LAN/USB Cradle, HA-M62IO The mechanical specifications (drop/shock and vibration resistance) of LAN/USB Cradle, HA-M62IO is as follows. Table 3.14 Item HA-M62IO Drop/Shock Strength Specifications 75cm Vibration Resistance 1.5G or less Packing Box Drop/Shock Strength Individual Assembly Vibration Resistance 70cm or less 50cm or less 1.5G or less Conditions Drop of 1 cycle for 6 surfaces to concrete floor.
3.3.4 Dual Battery Charger, HA-M32DCHG The mechanical specifications (drop/shock and vibration resistance) of Dual Battery Charger, HA-M32CHG is as follows. Table 3.16 Item Specifications Conditions HA-M32CHG Drop/Shock Strength Vibration Resistance 70cm 1.5G or less Drop of 1 cycle for 6 surfaces, 4 edges to concrete floor. 10 to 55Hz, 30minutes, reciprocative in X/Y/Z directions Power off Packing Box Drop/Shock Strength Individual Assembly Vibration Resistance 70cm or less 60cm or less 1.
3.3.6 Rechargeable Battery Pack, HA-M20BAT The mechanical specifications (drop/shock and vibration resistance) of Rechargeable Battery Pack, HA-M20BAT is as follows. Table 3.18 Item HA-M20BAT Drop/Shock Strength Vibration Resistance Packing Box Drop/Shock Strength Individual Assembly Specifications 100cm Conditions 1.5G or less Drop of 1 each time for 6 surfaces, 4 edges to plastic tiled floor. 10Hz to 55Hz, 30 minutes, reciprocative in X/Y/Z directions.
3.4 Compliance 3.4.1 V-T500/V-N500 The following table shows applicable Standards, Directives, and Requirements for V-500/V-N500 series. Table 3.20 Area World Category Safety Standard Laser/LED Dust-proof/Splash- proof In-vehicle Std.
3.4.2 LAN/USB Cradle, HA-M62IO The following table shows applicable Standards, Directives, and Requirements for LAN/USB Cradle, HA-M62IO. Table 3.21 Area World Europe Category Safety Standard In-vehicle Std. R&TTE Directive Standard/Requirement E Mark Safety Standard Wireless Power Transmission (WPT) Energy efficiency EMC Directive Erp Directive EMS EMI Vehicles Directive EMI ERM EMF EMC IEC60950-1 ECE Reg.
3.4.4 Dual Battery Charger, HA-M32DCHG The following table shows applicable Standards, Directives, and Requirements for Dual Battery Charger, HA-M32CHG. Table 3.23 Area World Europe Category Safety Standard In-vehicle Std. R&TTE Directive Standard/Requirement E Mark Safety Standard Wireless Power Transmission (WPT) Energy efficiency EMC Directive Erp Directive EMS EMI Vehicles Directive EMI 49 ERM EMF EMC IEC60950-1 ECE Reg.
3.4.5 Rechargeable Battery Pack, HA-M20BAT The following table shows applicable Standards, Directives, and Requirements for Rechargeable Battery Pack, HA-M20BAT. Table 3.24 Area World America Europe Category Safety Standard In-vehicle Std.
3.1 Performance Reference 3.1.1 Handling Contactless Smart Card This chapter explains about card accessing area's name and detail, usage of scanning direction and precautions. About accessing area's name and detail Table 3.25 NFC’s Access Block and Areas Block/Area Description ID block Reads individual ID of contactless smart card. Non-security area Data area which do not require password Private area authentication or communication packet encryption to carry out read or write data.
About scanning angle ・Parallel with display panel Scanning Distance ・Parallel with display panel Figure 3.
Scanning condition Contactless Smart Card (ISO14443 Type A/B, Felica) Table 3.26 Condition Minimum operating magnetic filed 1.5A/m over Direction Parallel direction with display panel Angle Parallel with display panel Range See Figure 3.3, Figure 3.4 Distance 0mm (Contact with case) Style ISO7810(JISX6301) standard card's style Range of Magnetic field strength is 1.5A/m over. reference PICC Front 15mm reference PICC TP ＋ 54mm GND 86mm Figure 3.3 Rear Figure 3.
RFID tag (ISO15693) Table 3.27 Condition Minimum operating magnetic filed Direction Angle Range Distance Style 1.5A/m over Parallel direction with dislay panel Parallel with display panel See Figure 3.4 0mm (Contact with case) – 50mm ISO7810(JISX6301) standard card's style Rear Figure 3.5 0mm(Contact with case) - 50mm Parallel with display panel. Figure 3.6 Note: There is possibility to change scanning range or can not scan by RFID tag/ Contactless Smart Card antenna style or power consumption.
About operating magnetic field Contactless Smart Card Standard ISO 14443 and Felica, RFID tag Standard ISO 15693 is defined magnetic field strength (radio wave strength) for communicating with card and tag, and this is standard of communication distance with card and tag. But magnetic field strength described in this section is imaged 85 x 54mm (4 times scroll antenna) card tag, therefore communication distance will be changed by style of tag and number of scroll antenna. (ex.
Note of operation In the following case, there is possibility to can not read and write of RFID tag / Contactless Smart Card. *Several pieces RFID tag / Contactless Smart Card are piled up. - Do not locate nearby with not scan RFID tag / Contact Smart Card . - If several cards is located in same pass case inside, you should take out necessary card from pass case. - Take enough distance between RFID tags / Contactless Smard Cards.
*Put on RFID tag / Contactless Smart Card to metal object. - Keep about 30mm distance between RFID tag / Contact Smart Card and metal object. - Use metal support tag. *Do not locate RFID tag / Contact Smart Card to antenna face as vertical position. - Closer RFID tag / Contact Smart Card to antenna face as parallel position. Note of usage 1. If you access to security area of card, there is necessary case which configure secure system by security module or security server.
4. Precautions Please read the instruction manual carefully and follow its contents. 4.1 Precautions for Handling and Operating V-T500/V-N500 4.1.1 About Recharging, Supplying Power, and Battery • • • • • The backup battery is a secondary battery. Please pay attention not to replace the main rechargeable battery pack if the backup battery is not fully charged. When the main battery is removed from the terminal unit with the exhausted backup battery, it will cause loss or change of data.
• • • • • • System case does not support splashproof specification. wipe it with soft and dry clothes if system case gets wet. Magnetic parts are used in system case. Keep off the magnetism and don't put magnetism in system case. Don't use the volatile medichine, like thinner/benzine/cosmetics, to clean the terminal unit. Wipe the terminal unit with soft and dry clothes if it gets dirty. It may get scratches if it's wiped strongly with clothes.
