BenQ RM5502K User Manual Download

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Basic operations

Downloading software

BenQ may periodically release software updates that may add functions or applications

associated with your display. To check if there is a software update available for your

device or to obtain the software license key, please visit

https://business-

display.benq.com/en/findproduct/signage/software/partner-software/download.html

. Then

enter the serial number (can be found on the sticker attached on the back of the display)

and click

to access the Software download page.

Setting up the Internet connection

Your display must be connected to a network to conduct OTA updates or surf the
Internet.

Network setting

On the home screen, go to

Setting

System

About

Status

If there is no IP

address shown, please connect the display to the ethernet cable.

Wireless connection

You must use a wireless adapter in order to connect the display to the Internet

wirelessly. Please contact your local dealer for more information on configuring the

wireless connection.

To find the MAC address in Android OS, please go to

Setting

System

About

Status

Summary of Contents for RM5502K

Page 1: ...RM5502K RM6502K RM7502K RM8602K Interactive Flat Panel User Manual ...

Page 2: ...contents thereof without obligation to notify any person of such revision or changes Copyright Copyright 2019 BenQ Corporation All rights reserved No part of this publication may be reproduced transmitted transcribed stored in a retrieval system or translated into any language or computer language in any form or by any means electronic mechanical magnetic optical chemical manual or otherwise witho...

Page 3: ...r panel 8 Input output terminals 9 Remote control 11 Using the remote control 12 Connection 14 Connecting the VGA input 14 Connecting the touch module 14 Connecting the digital inputs 15 Connecting the video output 16 Connecting to serial port 17 Connecting power 18 Basic operations 19 Turning the display on or off 19 Initial setup 20 OSD Setting 20 Switching input signals 24 Downloading software ...

Page 4: ...n interface 46 APPS 55 BenQ Suggests 55 InstaShare 56 InstaQPrint 57 WPS Office 58 Email 60 Side Tool Bar 61 Blizz 62 Saffi 63 Product information 65 Specifications 65 Dimensions RM5502K 67 Dimensions RM6502K 68 Dimensions RM7502K 69 Dimensions RM8602K 70 Supported input signal resolution 71 Troubleshooting 73 6 6 19 ...

Page 5: ...y Using wrong or unsuitable accessories may cause the display to fall and result in serious personal injuries Make sure that the surface and fixing points are strong enough to sustain the weight of the display To reduce the risk of electric shock do not remove covers No user serviceable parts inside Refer servicing to qualified service personnel To prevent personal injuries mounting the display or...

Page 6: ...ecified by the manufacturer or sold with the apparatus When a cart is used use caution when moving the cart apparatus combination to avoid injury from tip over 13 Unplug this apparatus during lightning storms or when unused for long periods of time 14 Refer all servicing to qualified service personnel Servicing is required when the apparatus has been damaged in any way such as power supply cord or...

Page 7: ...play This condensation will usually disappear after around 2 hours of normal operation RM series does not offer image retention function for more information please refer to installation guide If a still image is required for a display it is recommended to enable Pixel shift See More settings on page 37 for more information RM series does not support portrait use portrait use may cause display dam...

Page 8: ...Bringing Enjoyment N Quality to Life corporate vision with the ultimate goal to achieve a low carbon society Besides meeting international regulatory requirement and standards pertaining to environmental management BenQ has spared no efforts in pushing our initiatives further to incorporate life cycle design in the aspects of material selection manufacturing packaging transportation using and disp...

Page 9: ...z remote control HDMI cable x 1 Wall mount Touch pen x 2 The type of power cord supplied may differ from that illustrated depending on your region of purchase Before discarding the package check that you haven t left any accessories inside the box Dispose of packaging materials wisely You can recycle the cardboard carton Consider storing the package if possible for future transport of the display ...

Page 10: ...d technicians Improper installation may cause the display to fall or malfunction Installing the display on a wall 1 Place a clean dry and lint free cloth on a flat horizontal and object free surface Make sure that the size of the cloth is larger than the display 2 Gently lay the display on the cloth with the LCD screen facing down 3 Remove the desktop stands from the display if installed 4 Identif...

Page 11: ...ightened and secured properly Recommended torque 470 635N cm The mounting means should be strong enough to bear the weight of the display To maintain proper ventilation keep at least 10 mm of clear space from the back cover of the display to the wall Please consult a professional technician for wall mount installations The manufacturer accepts no liability for installations not performed by a prof...

Page 12: ...atically enter standby mode When the switch is set to OFF O this will completely cut off the power supply Power in Connects with the supplied power cord Menu Press to open or close the sidebar menu Ambient Light Sensor Detects the ambient room light conditions to automatically adjust the display backlight brightness Remote Control Sensor Receives the signal from the remote control Power Press to t...

Page 13: ...uter besides connecting external computer VGA and audio signals external computer s USB port needs to be connected to the corresponding group Under the condition that driver is installed external computer can be touch controlled through the equipment touch function is effective in VGA and HDMI channel by default HDMI IN 1 Receives HDMI signals from an external device HDMI IN 2 Receives HDMI signal...

Page 14: ...e from external devices to the display for audio in AUDIO IN MIC IN AUDIO IN Receives audio signals from an external device MIC IN Connects to a microphone VGA Receives analog RGB signals from an external device such as a computer 2 0 1 5A Unscrews the cover and accesses multimedia files on USB drives directly 12 13 14 15 16 17 USB2 0 5V 500mA USB3 0 5V 900mA Direct Current DC Alternating Current ...

Page 15: ...r downward selection Android system main screen button Return key Voice command key Press to activate Saffi BenQ Voice Assistant hold the button for two seconds then say the command you can use Release the button until you finish the command Speak directly to the microphone built into the top portion of the remote control Position the microphone closer to your mouth or speak in a loud and clear vo...

Page 16: ...and the enclosed dongle have been paired in default Using the remote control Installing remote control batteries Dongle 1 Open the remote control battery compart ment cover 2 Insert the supplied batteries ensuring that the positive and negative marked battery terminals match the and marks in the battery compartment The supplied batteries are provided for your convenience so that you can operate th...

Page 17: ...le to IFP s USB port and place the remote control near it 2 Press the and at the same time and the indicator light starts flashing 3 The pairing is completed once the indicator stops flashing Remote control usage tips To power on off the display aim the top front of the remote control directly at the display s remote control sensor window when you press the buttons Avoid getting the remote control...

Page 18: ...orts easy Plug and Play operation There is no need to install additional drivers on the computer Avoid blocking the touch screen frame where sensors are located when initiating the touch module It is highly recommended that you connect the display to the PC or laptop directly Avoid connecting the display to a face plate device which may cause failures in touch operations If any ghost image occurs ...

Page 19: ...n the display using an HDMI cable 2 To view images from this input press on the remote control to switch to the respective input source The applicable cable is not supplied and should be purchased separately The display provides a selection for the dual monitor mode TOUCH 1 port must be connected with HDMI IN 1 or HDMI IN 2 HDMI cable DVD player Computer ...

Page 20: ...g the video output For computer 1 Use HDMI cable to connect from HDMI OUT to the respective jacks of the devices 2 Plug in power cord and switch power on 3 Press on the remote control to turn on the display HDMI OUT Projector ...

Page 21: ...plied and should be purchased separately This connection is applicable to straight through RS 232C cable only After using serial port line to connect central control equipment and machine certain function of the machine can be controlled via central control equipment such as machine on off and adjustment of sound volume etc RS 232C cable Computer ...

Page 22: ...nes used in your region Only use an appropriate power cord for your region Never use a power cord which appears damaged or frayed or change the plug type on the power cord Be aware of the power loading when you use extension cords or multiple outlet power boards There are no user serviceable parts in this display Never unscrew or remove any covers There are dangerous voltages inside the display Tu...

Page 23: ...the Power button on the control panel or on the remote control The system will automatically enter standby mode To turn on the display press the ON OFF button on the control panel or on the remote control To turn off the display press the ON OFF button on the control panel or on the remote control The system will automatically enter standby mode AC IN Power Switch OK Power Button IR Receiver The d...

Page 24: ...tart up your display and complete the initial setup 1 Turn on the display Wait for the display to boot up with the BenQ screen This may take a moment 2 Tap Next on the screen to begin Follow the on screen instructions to set up the language date and time and network Or your can skip some of these steps and complete the setup later OSD Setting Under General you can select a desired input source and...

Page 25: ...lpaper volume and brightness Admin Log in as Admin Under Personal settings you can change the headshot wallpaper and password You can also adjust volume brightness and set Auto logout Multiple users To access your personal account you have to ask the administrator to activate AMS service first and create your account through IAM service Refer to User Management on page 22 for more information ...

Page 26: ...ser Management To add a new user please contact your IT manager to create your account through BENQ IAM web service Creating a new account 1 As the administrator log in and choose IAM 2 Click Create New Account to continue ...

Page 27: ...Basic operations 23 3 Fill in the following fields and click Submit to create a new account ...

Page 28: ...macular degeneration caused by extended sessions in front of a display In addition advanced anti glare screen treatment minimizes distracting reflections and glare for optimal productivity and comfort To activate the smart eye care solution Enable the Eye Care function under General Go to Device Display Eye care option Suggestions for long term use of the display Rest your eyes for 10 minutes afte...

Page 29: ... on the back of the display and click OK to access the Software download page Setting up the Internet connection Your display must be connected to a network to conduct OTA updates or surf the Internet Network setting On the home screen go to Setting System About Status If there is no IP address shown please connect the display to the ethernet cable Wireless connection You must use a wireless adapt...

Page 30: ... and the switcher will automatically change to ON A list of available networks will show on the screen 3 Touch the network s name to connect to the network The password is needed if it is your first time to use the network Key in the password and press Connect The device is now connected to the WLAN ...

Page 31: ...dio volume level do either one of the following Press on the remote control to adjust the volume Press on the front panel of the display Go to Setting Audio to adjust the volume Refer to Audio settings on page 34 for more information If you are connecting to a secured wireless network enter the password for the wireless network access when prompted and tap Connect For wireless connection BenQ ship...

Page 32: ...list of gestures you can use on the touch screen Ensure that you have installed the USB cable on the display to a computer Windows is a registered trademark of Microsoft Corporation in the United States and other countries OS functions Gesture actions For Windows XP Windows 7 Windows 8 and Windows 10 Click Tap the screen once Double click Tap the screen twice Right click 1 Press on the target 2 Ho...

Page 33: ...er Flick in a desired direction Multi touch functions For Windows 7 Home Premium Professional Enterprise and Ultimate versions Right click 1 Press on the target 2 Tap the screen with another finger 3 Release the second finger Scrolling Drag one or two fingers up or down Zoom Move two fingers apart or toward each other OS functions Gesture actions or ...

Page 34: ...e S3 Press and hold for 4 seconds OS functions Gesture actions Gesture Description For Windows 8 Press and hold to learn This touch interaction causes detailed information or teaching visuals for example a tooltip or context menu to be displayed without a commitment to an action Anything displayed this way should not prevent users from panning if they begin sliding their finger Tap for primary act...

Page 35: ...o the panning direction selects objects in a list or grid ListView and GridLayout controls Display the AppBar with relevant commands when objects are selected Pinch and stretch to zoom While the pinch and stretch gestures are commonly used for resizing they also enable jumping to the beginning end or anywhere within content with Semantic Zoom A SemanticZoom control provides a zoomed out view for s...

Page 36: ...ll amount of alcohol to clean the infrared plastic filter To avoid damage to the screen never use any type of abrasive materials to wipe the screen Use a neutral detergent to clean the touch screen Avoid using detergents with erosive substance such as banana oil or ammonia Moisten a clean soft lint free cloth with a neutral detergent and then clean the touch screen Do not spray a detergent on the ...

Page 37: ...the bottom middle to the center of the screen to enter the OSD menu Press on the remote control and press OK to confirm or directly click a desired input source Press on the remote control or click a blank area outside the menu to exit the menu You can enable the Eye Care function on the OSD menu Eye Care switches the display low blue light mode and activates the flicker free function Use the brig...

Page 38: ...rol or click a blank area outside the menu to exit the menu Directly swipe to enable or disable Mute Menu Description Volume Drag the knob to adjust the volume Balance Drag the knob to adjust the balance Sound Environment Touch a preset sound environment Options are Standard Meeting Class or Movie Sound Source Touch a preset sound source Options are PC Audio in and Mic in ...

Page 39: ...tected within the sensor s range The display automatically turns off when no one is detected within the sensor s range for a long period of time Adjust settings VGA only Use the H Position V Position Clock and Phase functions to manually adjust the image Menu Description Aspect ratio Press on the remote control or click an aspect ratio Options are 16 9 or PTP You can also select Auto to adjust the...

Page 40: ...a blank area outside the menu to exit the menu Menu Description Picture Mode Press on the remote control or click a picture mode Options are Standard Bright and Soft Color Temp Press on the remote control or click a preset color temperature for the image Options are Cool Normal or Warm Brightness level Press on the remote control or drag the knob to adjust the brightness Contrast Press on the remo...

Page 41: ...ess on the remote control and press OK to confirm or directly click an item Press on the remote control or click a blank area outside the menu to exit the menu Menu Description Key lock Press OK on the remote control or click the switch to lock or unlock the buttons on the front panel of the display ...

Page 42: ...ck or unlock the remote control IR sensor on the front panel of the display Touch lock Press OK on the remote control or click the switch to lock or unlock the screen Pixel shift Press OK on the remote control or click the icon to set a pixel shift preventing from image retention If keypad IR and touch are locked all at once please follow the steps to unlock Press on the remote control for five se...

Page 43: ...d Input methods in Android Startup Shutdown Click to set the Startup channel OPS startup option Wake on Lan and Power off reminder Refer to Startup Shutdown on page 43 for more information Floating tool Click to open and close the floating tool Refer to Floating Annotation Toolbar on page 47 for more information About Click to view system information in Android The amount of available storage spac...

Page 44: ...Menu operations 40 Proxy setting Go to Network Ethernet Press Proxy to go to the proxy setting You can choose None Manual and Proxy Auto Config ...

Page 45: ...Menu operations 41 Enter the proxy host name ...

Page 46: ...Menu operations 42 Enter the using channel ...

Page 47: ...Menu operations 43 Startup Shutdown Go to System Startup Shutdown For Startup channel you can choose Last shutdown channel or other sources ...

Page 48: ...Menu operations 44 For Built in OPS startup option you can choose Startup only through OPS built in startup option or startup through any channel ...

Page 49: ...Menu operations 45 For Power off reminder you can set on or off time Schedules can be made by choosing the days of the week ...

Page 50: ...id main interface Press on the remote control or Home button on the front panel to return to the main interface Press on the remote control or drag the OSD menu up from the bottom center of the screen to enter the OSD menu to select an input Note that this is a closed Android OS Download and use of unauthorized apps on this system are not available ...

Page 51: ...g Annotation Toolbar around You can also click the button to close the floating toolbar and clear all the brushes Annotate Click to switch the color of the brush Color options are blue red green and black Palm eraser is provided for you to erase any contents on the display just with your palm while you are writing without switching to Eraser Whiteboard Click to start EZWrite 5 0 Clear All Click to...

Page 52: ...o launch AMS With this application you can access your personalized workspace environment and settings and manage your files and accounts on any IFP that you have logged into While logging in you will see four main parts as described in the table below 1 2 3 4 ...

Page 53: ...also open files from the local devices like Internal My Folder or connected USBs The icon next to Google Drive Dropbox shows that the account is bound to AMS service 2 Folder Path You can browse the file folder in this area 3 Listing Files You can see a list of files from the storage device you select 4 Operating Tab You can edit the files using the operating tabs here Regular users can only view ...

Page 54: ...urrent image clockwise Go to the settings See the information about the file name creation time file size and the file format File Image Supported range bmp BMP Max Resolution 8000 8000 Min Resolution 4 x 4 gif GIF Max Resolution 8000 8000 Min Resolution 4 x 4 jpeg jpg JPEG JPG Max Resolution 8000 8000 Min Resolution 4 x 4 png PNG Max Resolution 8000 8000 Min Resolution 4 x 4 ...

Page 55: ...list Play the previous audio file Play pause the current audio file Play the next audio file Check the audio information File Format Audio Codec Supported range aac AAC AAC Sample Rate 8K 96KHz Bit Rate 24K 576Kbps ape Monkey s Audio Monkey s Audio Sample Rate Max 48KHz Bit Rate max 1411Kbps flac FLAC FLAC Sample Rate Max 192KHz Bit Rate max 1411Kbps m4a ALAC ALAC Sample Rate 8K 96KHz Bit Rate 24K...

Page 56: ...udio Layer3 MPEG1 2 layer3 Sample Rate 8K 48KHz Bit Rate 32K 320Kbps ogg Vorbis Vorbis Sample Rate 8K 48KHz Bit Rate max 256Kbps wav WAV LPCM Sample Rate 8K 192KHz Bit Rate max 320Kbps Icon Function Adjust the video volume Play the previous video file Play pause the current video file Play the next audio file File Format Audio Codec Supported range ...

Page 57: ...MPEG 2 1920 1088 30 Fps 80Mbps MPEG 4 1920 1088 30 Fps 50Mbps MJPEG 1920 1080 30 Fps 150Mbps flv H 263 MPEG1 2 Layer3 AAC 1920 1088 30 Fps 5Mbps VP6 1920 1088 30 Fps 40Mbps H 264 3840 2160 30 Fps 160Mbps f4v H 264 AAC 3840 2160 30 Fps 160Mbps mkv H 264 AAC MPEG1 2 Layer3 3840 2160 30 Fps 160Mbps H 265 3840 2160 60 Fps 160Mbps Vc 1 1920 1088 30 Fps 45Mbps mov H 264 AAC PCM 3840 2160 30 Fps 160Mbps ...

Page 58: ... 30 Fps 160Mbps MPEG 1 1920 1088 30 Fps 80Mbps MPEG 2 1920 1088 30 Fps 80Mbps ts H 264 AACAAC MPEG1 2 Layer3 3840 2160 30 Fps 160Mbps H 265 3840 2160 60 Fps 160Mbps MPEG 2 1920 1088 30 Fps 80Mbps MPEG 4 1920 1088 30 Fps 50Mbps VC 1 AP 1920 1088 30 Fps 45Mbps File Codec Extensions Video Audio Maximum transmit ratio ...

Page 59: ... application you can view apps suggested by BenQ for download Tap the category on the left panel to browse the suggested apps Tap an app from the selected category to view a basic description of the app Function Description Search Tap to search for an app Education Tap to show the suggested apps in the Education category ...

Page 60: ...D name that you want to connect to or enter the pairing code 4 Enter the connect code shown on the upper right corner of the display or you can also find the connection code in Setting 5 Once the mobile device has successfully connected to the display a confirmation message will appear on the display Tap Allow on the display to confirm the connection 6 Once connected you can Mirror the display s s...

Page 61: ...staQPrint With this application you can print a file or website image using a Wi Fi or remote printer 1 Tap the option on the left panel and browse and select the desired file photo page or image you want to print Once connected any operations on the display or mobile device will also show up on your mobile device and display Before launching the application make sure your display is properly conn...

Page 62: ... printers automatically Tap Manual Setup to add a new printer manually WPS Office Tap to launch WPS Office With this application you can open document files including PDFs as well as Microsoft Word PowerPoint and Excel documents To edit a file with WPS Office 1 Tap Open on the left panel to browse and open a file located in either the dis play s internal memory an external storage device or cloud ...

Page 63: ...dit Tap to edit the content or format of the slides Insert Tap to insert tables pictures charts comments video or audio Transitions Tap to apply or adjust the timing of a transition Pen Tap to write draw paint or sketch to the slides Play Tap to start a slide show Save As Tap to save the presentation file on either the display s internal memory an external storage device or cloud storage Undo Tap ...

Page 64: ...il set up an account first Type your Email address and click NEXT After you ve signed up you will receive a verification email After you respond to the Email verification you can begin writing email Office Software Supported File Formats Word wps wpt doc docx dot dotx txt log irc c cpp h asm s java asp bat bas prg cmd Excel et ett xls xlsx xlt xltx csv xlsm xltm PowerPoint ppt pptx ...

Page 65: ...erface Return Tap to return to previous operation interface SwitchQ Tap to switch tasks between recent apps and input sources EZWrite 5 0 Tap to enter EZWrite 5 0 software Connection Tap to enter Connection to select the input source Floating Annotation Toolbar Click to open the floating tool ...

Page 66: ...ers 1 On the home screen select Apps Blizz 2 Select Sign In if you want to create a new meeting select Join a Meeting if you want to join an already created meeting After signing in create a meeting ID which will be the meeting ID other users will enter to join the meeting If joining a meeting enter the meeting ID provided by the creator of the meeting in the Join a Meeting page ...

Page 67: ...m to start timers or search the Internet from anywhere in the room Already enable AMS service but did not bind your Amazon account to it If you already enable Multi Account Mode and AMS service and you have not yet bind your Amazon account to it please follow the below steps 1 Access AMS website to link the account with Amazon For more detail on how to link the account under AMS please refer to AM...

Page 68: ...eed 4 It will then show the instruction for the setup Follow the instruction on the screen to complete the setup 5 Download and install Alexa app on your phone Search Saffi and enable it 6 The setup is completed Press the Voice command key and speak the commands to start using Saffi ...

Page 69: ...2K RM6502K 8 bit RM7502K RM8602K 10 bit Touch Touch Technology IR Touch Touch Method Finger Stylus Resolution 32767 x 32767 Numbers of Touch 20 points varies from operating systems and applications Touch Output x 2 USB type B Operating System Touch Driver Free Win 7 Win 8 8 1 Win 10 Mac OS X10 11 10 14 Chrome OS 58 Ubuntu 16 04 Fedora 28 OpenSuse 15 Android kernel version 3 10 or above touch funct...

Page 70: ...D mm RM5502K 1268 1 x 814 5 x 115 6 RM6502K 1488 7 x 938 9 x 115 6 RM7502K 1709 4 x 1062 0 x 115 8 RM8602K 1957 1 x 1201 8 x 115 8 Specifications and functions are subject to change without notice Item RM5502K RM6502K RM7502K RM8602K System CPU Dual core A73 Dual core A53 1 5GHz System Memory 4GB Storage 32GB OS Android 8 0 This Android 8 0 operating system is not standard Android so access to Goo...

Page 71: ...Product information 67 Dimensions RM5502K Unit mm 287 1 23 1 1 23 1 1 287 1 7 9 5 7 9 5 02817 6 5 7 5 37 0 ...

Page 72: ...Product information 68 Dimensions RM6502K Unit mm 7 9 5 23 1 1 287 1 7 9 5 23 1 1 287 1 02817 6 5 7 5 37 0 ...

Page 73: ...Product information 69 Dimensions RM7502K Unit mm 2XWOLQH 2XWOLQH H HO 2SHQLQJ FWLYH UHD FWLYH UHD H HO 2SHQLQJ 5 02817 02817 6 5 7 5 37 0 ...

Page 74: ...Product information 70 Dimensions RM8602K Unit mm 2XWOLQH 2XWOLQH H HO 2SHQLQJ FWLYH UHD FWLYH UHD H HO 2SHQLQJ 02817 6 5 7 5 37 0 5 DOO 0RXQW ...

Page 75: ... 1152 x 864 60Hz 1280 x 720 50Hz 1280 x 768 60Hz 1280 x 800 60Hz 1280 x 960 60Hz 1280 x 1024 60Hz 1360 x 768 60Hz 1366 x 768 60Hz 1400 x 1050 60Hz 1440 x 900 60Hz 1600 x 900 60Hz 1680 x 1050 60Hz 1920 x 1080 30Hz 1920 x 1080 50Hz 1920 x 1080 60Hz 3840 x 2160 30Hz 3840 x 2160 50Hz 3840 x 2160 60Hz NTSC M NTSC J PAL BDGHI 480i 60Hz 480p 60Hz 576i 50Hz 576p 50Hz 720p 25Hz 720p 30Hz ...

Page 76: ...Product information 72 720p 50Hz 720p 60Hz 1080i 50Hz 1080i 60Hz 1080p 50Hz 1080p 60Hz supported Vacant not supported Display Port HDMI timing table should follow EDID1 4 or EDID2 0 ...

Page 77: ...on and try again No sound Check the following Have you turned on the mute function on the display or the input source device Turn off the mute function or increase the audio volume level and try again Are there any loose cable connections Make sure that all cables are connected firmly The computer input image looks strange Have you chosen an unsupported output resolution on the computer Refer to S...

Page 78: ...ng to failure of remote control Check whether the battery electrode in the remote control is correct Check whether remote control needs to replace battery Machine automatically shutdown Whether set sleep or not Check whether there is sudden power outage Check whether there is no signal automatic shutdown Signal out of range Check whether display is set correctly Check whether resolution is the bes...

Page 79: ...ools are placed around the machine No color color is weak or image is weak Adjust chromaticity and brightness or contrast in menu Check whether signal wire is well connected With image but without sound Check whether mute button is pressed for mute Press VOL VOL to adjust volume Check whether audio line is connected correctly Only one speaker has sound Adjust sound balance in menu Check whether co...

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