PN-L802B LCD MONITOR OPERATION MANUAL
IMPORTANT: To aid reporting in case of loss or theft, please record the product’s model and serial numbers in the space provided. The numbers are located in the rear of the product. Model No.: Serial No.: U.S.A. ONLY FOR CUSTOMERS IN U.K.
IMPORTANT INFORMATION WARNING: TO REDUCE THE RISK OF FIRE OR ELECTRIC SHOCK, DO NOT EXPOSE THIS PRODUCT TO RAIN OR MOISTURE. CAUTION RISK OF ELECTRIC SHOCK DO NOT OPEN CAUTION: TO REDUCE THE RISK OF ELECTRIC SHOCK, DO NOT REMOVE COVER. NO USER-SERVICEABLE PARTS INSIDE. REFER SERVICING TO QUALIFIED SERVICE PERSONNEL.
IMPORTANT INFORMATION (Continued) Attention: Your product is marked with this symbol. It means that used electrical and electronic products should not be mixed with general household waste. There is a separate collection system for these products. EU ONLY A. Information on Disposal for Users (private households) 1.
DEAR SHARP CUSTOMER Thank you for your purchase of a SHARP LCD product. To ensure safety and many years of trouble-free operation of your product, please read the Safety Precautions carefully before using this product. SAFETY PRECAUTIONS Electricity is used to perform many useful functions, but it can also cause personal injuries and property damage if improperly handled. This product has been engineered and manufactured with the highest priority on safety.
SAFETY PRECAUTIONS (Continued) 19. B atteries — Incorrect use of batteries may cause the batteries to burst or ignite. A leaky battery may corrode the equipment, dirty your hands or spoil your clothing. In order to avoid these problems, make sure to observe the precautions below: • Use the specified batteries only. • Install the batteries with due attention to the plus (+) and minus (-) sides of the batteries according to the instructions in the compartment. • Do not mix old and new batteries.
TIPS AND SAFETY INSTRUCTIONS -T he TFT color LCD panel used in this monitor is made with the application of high precision technology. However, there may be minute points on the screen where pixels never light or are permanently lit. Also, if the screen is viewed from an acute angle there may be uneven colors or brightness. Please note that these are not malfunctions but common phenomena of LCDs and will not affect the performance of the monitor.
MOUNTING PRECAUTIONS • This product is for use indoors. • A mounting bracket compliant with VESA specifications is required. • Since the monitor is heavy, consult your dealer before installing, removing or moving the monitor. • Mounting the monitor on the wall requires special expertise and the work must be performed by an authorized SHARP dealer. You should never attempt to perform any of this work yourself.
Contents IMPORTANT INFORMATION.............................................3 DEAR SHARP CUSTOMER...............................................5 SAFETY PRECAUTIONS...................................................5 TIPS AND SAFETY INSTRUCTIONS................................7 MOUNTING PRECAUTIONS.............................................8 Supplied Components......................................................9 System Requirements......................................................9 Part Names.......
Part Names nFront view 2 2 1 1 3 3 1. 2. 3. 4. 5. 6. 7. 8. Sensor Touch pen ultrasonic sensor Reflective surface Power button (See page 16.) Tray Remote control sensor (See page 15.) Input switch (See page 21.) Power LED (See page 16.) 3 4 5 6 7 8 nRear view When the PN-ZB01 (optional) is attached 16 17 1 18 19 23 20 21 22 24 25 5 6 11 7 8 9 10 12 2 13 Caution • Consult your SHARP dealer for attachment/detachment of optional parts.
Part Names nRemote control unit 1 2 7 3 8 4 5 1. 2. 3. 4. 5. 6. 7. 8. 9. Signal transmitter POWER button (See page 16.) MUTE button (See page 21.) VOL +/- buttons (See page 21.) BRIGHT +/- buttons (See page 21.) Cursor control ( / / / ) buttons DISPLAY button (See page 21.) MODE button (See page 21.) INPUT button (See page 21.) MENU button (See page 21.) SIZE button (See page 21.
Connecting Peripheral Equipment When the PN-ZB01 (optional) is attached 7 15 13 14 12 9 1 8 10 11 5 2 3 4 5 6 Caution • Be sure to turn off the main power switch and disconnect the plug from the power outlet before connecting/ disconnecting cables. Also, read the manual of the equipment to be connected. • Be careful not to confuse the input terminal with the output terminal when connecting cables.
Connecting Peripheral Equipment Connection when the PN-ZB01 (optional) is attached The PN-ZB01 expansion board (optional) allows the use of additional connection terminals. 7. PC/AV DVI-D input terminal • Set DVI of INPUT SELECT on the OPTION menu according to the device to be connected. • Select the audio input terminal to be used in PC DVI-D or AV DVI-D of AUDIO SELECT on the OPTION menu. 8.
Connecting the Power Cord Caution • Use only the power cord supplied with the monitor. 1. Turn off the main power switch. 2. Plug the power cord (supplied) into the AC input terminal. 3. Plug the power cord (supplied) into the AC power outlet. 3 For power Main power switch outlet 2 Power cord (Supplied) 1 AC input terminal Binding Cables The cables connected to the terminals on the rear of the monitor can be fastened with the cable clamp.
Preparing the Remote Control Unit Installing the batteries Remote control operation range 1. Press the cover gently and slide it in the direction of the arrow. The operation range of the remote control unit is approx. 16.4 feet (5 m) at an angle of approx 10° from the center to the top/ bottom/right/left of the remote control sensor. 2. See the instructions in the compartment and put in the supplied batteries (R-6 (“AA” size) x 2) with their plus (+) and minus (-) sides oriented correctly. 3.
Turning Power On/Off Caution • Turn on the monitor first before turning on the PC or playback device. Turning power on/off Press the POWER button to turn the power ON/OFF. Turning on the main power POWER button Power LED Main power switch Status Status of the monitor Green lit Power on Orange lit Power off (Standby mode) Green flashing Input signal waiting mode Caution • The main power must be turned on/off with the main power switch.
Turning Power On/Off nDate/time setting • If the time has yet to be set when the monitor is first turned on, the date/time setting screen appears. Set the date and time. DATE/TIME SETTING / SET / 01 / 01 / 20 12 : Disabling power on/off operations Power on/power off operations can be disabled in order to protect the monitor from an accidental power off. Set the ADJUSTMENT LOCK in FUNCTION menu to “ON 2”. (See page 31.) : 12 : 00 AM CANCEL OK···[MENU] 1.
Touch Pen Preparations/Touch Action Inserting the battery Touch action and touch mode 1. Rotate the battery cap and remove it, and then pull out the cover. Touch panel actions that can be used vary depending on the touch mode setting in the touch panel driver. In Windows XP/Windows Vista, dual touch mode cannot be used. Battery cap 2. Insert the supplied battery (LR-03 (“AAA” size)) in the orientation shown, and attach the cover and battery cap.
Touch Pen Preparations/Touch Action Double-tap*1 Same action as double-clicking a mouse. Quickly touch twice with your finger/pen. When double-tapping with your finger, be sure to lift your finger sufficiently off the screen after the first tap. If there is insufficient distance between the screen and your finger, double-tap will not take place. Drag-and-drop Same action as drag-and-drop with a mouse. Touch the screen with your finger/pen and move without lifting.
Touch Pen Preparations/Touch Action Press-and-tap Same action as right-clicking a mouse. With one finger touching the screen, tap once (single tap) with another finger. Tap once (single tap) with another finger • If the pen tip becomes worn or damaged, replace it. Pull out the old pen tip and insert a new pen tip. With one finger touching Other functions Rotation Use this action in a screen that is capable of image rotation. Touch the center point of the rotation with one finger.
Basic Operation 2. MUTE Turns off the volume temporarily. Press the MUTE button again to turn the sound back to the previous level. 1 2 3. MENU Displays and turns off the menu screen. (see page 23.) 3 4 4. VOL +/- (Volume adjustment) Pressing or displays the VOLUME menu when the menu screen is not displayed. 5 VOLUME Press or to adjust the volume of the sound. * If you do not press any buttons for about 4 seconds, the VOLUME menu automatically disappears. 6 7 8 5.
Basic Operation nSwitching the screen size Even when the screen size is changed, the display may remain the same depending on the input signal. WIDE ZOOM 1 PC input Displays image so it fills the entire screen. AV input An image with a 4:3 aspect ratio is stretched to fill the entire screen. PC input An image with a 4:3 aspect ratio is enlarged to fill the entire screen without changing the aspect ratio. The edges of the image may be cut off.
Menu Items Displaying the menu screen TIPS Caution • Do not turn the main power switch off while the menu items are being displayed. Doing so may initialize the settings. • The menu will differ depending on the input mode. • The menu screen will close automatically if no operation is performed for about 15 seconds. (DATE/TIME SETTING, SCHEDULE and LAN SETUP screens will close in about 4 minutes.) nMenu screen display 1 nExample of operation SCREEN MENU SCREEN AUDIO to display the menu screen.
Menu Items Menu item details The menu will differ depending on the input mode. nSCREEN You can move the menu screen display position each time DISPLAY is pressed. AUTO (PC D-SUB/PC RGB) The CLOCK, PHASE, H-POS, and V-POS are automatically adjusted. Pressing performs adjustment. Use this automatic adjustment when you use the PC D-sub input terminal or PC RGB input terminals to display a PC screen for the first time or when you change the setting of the PC. (See page 30.
Menu Items USER Adjusts each item when the WHITE BALANCE is set to USER. R-CONTRAST.....Adjusts bright-toned red component. G-CONTRAST.....Adjusts bright-toned green component. B-CONTRAST.....Adjusts bright-toned blue component. R-OFFSET...........Adjusts dark-toned red component. G-OFFSET..........Adjusts dark-toned green component. B-OFFSET...........Adjusts dark-toned blue component. COPY TO USER Copies the value of white set for PRESET to the USER setting. MENU Select “ON” and then press .
Menu Items HOT PLUG CONTROL Sets whether to use hot plug control for the PC/AV HDMI and PC/AV DVI-D input terminals. RS-232C/LAN SELECT Selects the method with which to control the monitor from the computer. ID No. SET Assigns ID numbers to monitors connected in a daisy chain (see page 33), using the RS-232 cables. The numbers 1 to 255 are available for ID numbers. If “0” is set, the system regards this as the state where no ID number is set. AUTO ASSIGN ID No. ID No.
Menu Items AUDIO OUTPUT (RCA) Sets the volume of sound output from the audio output terminals. When set to VARIABLE 2, sound will not be output from the built-in speaker or the external speaker terminal. VARIABLE1......... You can adjust the volume using VOLUME. VARIABLE2......... You can adjust the volume using VOLUME. FIXED..................Fixes the sounds. AUDIO LEVEL (STEREO MINI) Selects the maximum audio input level of the audio input terminal.
Menu Items nDual screen display You can display the screens of the PC input signal and AV input signal simultaneously. Set this function with “PIP MODES” in the PIP/PbyP menu. PIP A sub screen is displayed inside a main screen. Main screen Sub screen PbyP Main screen Sub screen PbyP2 Main screen Sub screen A main screen and a sub screen are displayed in a line. Displays a main screen which measures 1280 pixels in the longest direction and a sub screen in a line.
Menu Items nSCHEDULE Caution You can set the time to switch the monitor on and off. Set this function with “SCHEDULE” in the OPTION menu. (See page 26.) PC D-SUB SCHEDULE (2) No.
Menu Items nADVANCED items (AV input) (See page 24 for additional Menu item details.) FLESH TONE Adjust the hue control. 3D-NR Reduce the noise of playback images on video. Setting a higher level reduces more noise. However, it may cause blurring on an image. MPEG-NR Reduce block noise caused by digital compression. 3D-Y/C (AV VIDEO) Specify whether to perform 3-dimension Y/C separation. If dot interference or cross-color is occurring in fast-motion scenes, selecting “OFF” may improve the image quality. C.
Initialization (Reset)/Functional Restriction Setting (FUNCTION) You can return the settings to their factory-preset values and restrict operations. SIZE down until “F” appears in the upper left 1. Hold corner of the screen. , , , in that 2. While “F” appears, press order. ▲ ▲ 1/1 OFF ▲ UNLOCKED ON1 ON LED OFF MONITOR ▲▲▲▲▲▲ ALL RESET ADJUSTMENT LOCK ADJUSTMENT LOCK TARGET RS-232C OSD DISPLAY LED TEMPERATUREALERT STATUSALERT POWER BUTTON CONTROLLER INPUT ▲▲▲▲▲▲ FUNCTION END…[MENU] 3.
Controlling the Monitor with a PC (RS-232C) You can control this monitor from a PC via RS-232C (COM port) on the PC. You can also connect multiple monitors via a daisy chain by using a PC. By assigning ID numbers to each monitor (see page 33), you can make input mode selection/adjustment or can check the status of a specific monitor. Precautions when the PN-ZB01 (optional) is attached • To control the monitor via RS-232C, set RS-232C/LAN SELECT to RS-232C.
Controlling the Monitor with a PC (RS-232C) nResponse code format When a command has been executed correctly O K Return code (0DH, 0AH) A response is returned after a command is executed.
Controlling the Monitor with a PC (RS-232C) nCommands for ID control The command examples shown on this page assume the following connection and ID number set up. ID number: 1 ID number: 2 ID number: 3 ID number: 4 IDST ��������. A monitor receiving this command sets its own ID number in the parameter field. Example: IDST0001 OK 001 ← The ID number of this monitor is set to 1. IDLK ��������The parameter of this command sets the ID number of the monitor.
Controlling the Monitor with a PC (RS-232C) nRepeater control This system has a function to allow setting of multiple monitors connected in a daisy chain using a single command. This function is called repeater control. You can use Repeater control function without assigning ID numbers. [Example] Set 1 Set 2 Set 3 Set 4 Setting of the GAMMA user data nTo transfer the GAMMA user data Use the user data transfer commands (UGRW, UGGW and UGBW).
Controlling the Monitor with a PC (RS-232C) RS-232C command table How to read the command table Command: Command field (See page 32.) Direction: W When the “Parameter” is set in the parameter field (see page 32), the command functions as described under “Control/Response Contents”. R The returned value indicated under “Reply” can be obtained by setting “????”, “ ?” or “???+” (repeater control) in the parameter field (see page 32). Parameter: Parameter field (See page 32.
Controlling the Monitor with a PC (RS-232C) SCREEN menu Function Command Direction Auto ASNC W CLOCK CLCK WR PHASE positioning size RESOLUTION RESET Parameter Reply Control/Response contents 1 When the input mode is PC D-SUB, PC RGB. 0-1200 0-1200 When the input mode is PC D-SUB, PC RGB. Varies depending on the signal. PHSE WR 0-63 Position of the longest direction HPOS WR 0-100 0-100 0-800 on PC D-SUB, PC RGB. Varies depending on the signal.
Controlling the Monitor with a PC (RS-232C) PICTURE menu Function Command Direction Auto AGIN W 1 When the input mode is PC D-SUB, PC RGB. ANALOG GAIN ANGA WR 0-127 0-127 When the input mode is PC D-SUB, PC RGB. ANALOG OFFSET ANOF WR 0-127 0-127 When the input mode is PC D-SUB, PC RGB.
Controlling the Monitor with a PC (RS-232C) AUDIO menu Function Command Direction Parameter Reply Control/Response contents TREBLE AUTR WR -5-5 BASS AUBS WR -5-5 -5-5 BALANCE AUBL WR -10-10 -10-10 RESET ARST W Command Direction OSD H-POSITION OSDH WR 0-100 0-100 OSD V-POSITION OSDV WR 0-100 0-100 SCREEN MOTION SCSV WR 0-4 0-4 MOTION TIME 1 MTIM WR 0-20 0-20 *1 *2 (A) (B) -5-5 ○ 3 ○ ○ - SETUP menu Function MOTION TIME 2 Parameter Reply Control/Response
Controlling the Monitor with a PC (RS-232C) OPTION menu Function Command Direction Date/time setting DATE WR AABBCCDDEE AABBCCDDEE AA: Year, BB: Month, CC: Day, DD: Hour, EE: Minute DATE DISPLAY FORMAT DTFT WR 0-2 0-2 0: YYYY/MM/DD, 1: MM/DD/YYYY, 2: DD/MM/YYYY YYYY: Year, MM: Month, DD: Day TIME DISPLAY FORMAT TMFT WR 0-1 0-1 0: 24-HOUR TIME, 1: 12-HOUR TIME SCHEDULE SC01SC08 WR ABCDEFFGGH ABCDEFFGGH Schedule of a specified number A: Schedule 0= Not effective, 1 = Effective B: Pow
Controlling the Monitor with a PC (RS-232C) PIP/PbyP menu Function Command Direction PIP MODES MWIN WR 0-3 PIP SIZE MPSZ WR 1-64 PIP POS The longest direction MHPS The shortest direction MVPS PIP POS LD+SD BATCH W Parameter Reply 0-100 0-100 R MPOS W 0-100 0-100,0-100 R PIP BLEND MWBL WR PIP SOURCE MWIP WR 0-3 0: OFF, 1: PIP, 2: PbyP, 3: PbyP2 1-64 0-100 R W Control/Response contents Specify the position in MPOSxxxyyy format.
Controlling the Monitor with a PC (RS-232C) Others Function Command Direction SCREEN SIZE (PC) WIDE WR 1-5 1-5 1: WIDE, 2: NORMAL, 3: Dot by Dot, 4: ZOOM1, 5: ZOOM2 SCREEN SIZE (AV) WIDE WR 1-5 1-5 1: WIDE, 2: ZOOM1, 3: ZOOM2, 4: NORMAL, 5: Dot by Dot VOLUME VOLM WR 0-31 MUTE MUTE WR 0-1 MODEL INF1 R SERIAL NO INFORMATION SRNO R BRIGHT VLMP WR TEMPERATURE SENSOR DSTA R Parameter Reply Control/Response contents 0-31 0-1 0: OFF, 1: ON ○ ○ ○ *2 (A) (B) - Value ● Value
Controlling the Monitor with a PC (LAN) When the PN-ZB01 (optional) is attached, your monitor can be connected to a LAN allowing you to control it from a PC on the LAN. You can also configure the monitor to send e-mail notification when it has a problem. The connection requires a commercially available LAN cable (UTP cable, Category 5, straight through). Network (LAN) Settings to connect to a LAN Set the monitor’s IP address and subnet mask to match the settings of your LAN.
Controlling the Monitor with a PC (LAN) ■ To set from a PC When the monitor is connected to a PC, LAN settings can be configured via PC. Set up process (1) Connect your monitor to a PC (2) Specify the PC’s IP address (3) Configure the monitor’s LAN settings 7. Temporarily change the IP address and subnet mask. To access the monitor as it is shipped from the factory, set as follows. • IP Address: 192.168.150.1 • Subnet Mask: 255.255.255.
Controlling the Monitor with a PC (LAN) 6. Click on “LAN SETUP” under NETWORK. Controlling with a PC ■ Basic operation You use Internet Explorer on a PC on the LAN to control the monitor. 1. Launch Internet Explorer on the PC. 2. In the “Address” box, type “http://” followed by your monitor’s IP address followed by “/”, then press the Enter key. You can confirm the IP address with the DISPLAY function. 7. Specify the “DHCP CLIENT”, “IP ADDRESS”,etc.
Controlling the Monitor with a PC (LAN) ■ INFORMATION Information about this monitor appears. ■ ADJUSTMENT You can adjust these settings which are also available on the monitor’s menu. • SCREEN (See page 24.) • PICTURE (See page 24.) • PICTURE (ADVANCED) (See page 30.) • AUDIO (See page 25.) • SETUP (See page 25.) • OPTION (See page 26.) • SCHEDULE (See page 29.) • PIP/PbyP (See page 27.) • FUNCTION (See page 31.
Controlling the Monitor with a PC (LAN) ■ NETWORK (LAN SETUP) This screen allows you to set the settings necessary when the monitor is connected to a LAN. DHCP CLIENT If your LAN has a DHCP server and you wish to obtain an address automatically, change this setting to “ON”. To set the address manually, set this to “OFF”. IP ADDRESS If the DHCP CLIENT is set to “OFF”, specify an IP address. SUBNET MASK If the DHCP CLIENT is set to “OFF”, specify the subnet mask.
Controlling the Monitor with a PC (LAN) ■ NETWORK (GENERAL) This screen allows you to specify the general LAN settings. MONITOR NAME Specify a name for this monitor as it should appear on the Internet Explorer screen. AUTO LOGOUT TIME Specify the time (in minutes) to elapse before automatically disconnecting this monitor from the network. Specify in minutes from 1 to 65535. A value of ‘0’ will disable this function. DATA PORT Specify the TCP port number to use for exchanging data with the monitor.
Controlling the Monitor with a PC (LAN) ■ MAIL (RECIPIENT) This screen allows you to specify the recipients of the e-mail sent periodically or when the monitor has an error. RECIPIENT E-MAIL ADDRESSES Specify the e-mail addresses to send error notification e-mail to. CONDITION Specify the conditions to send mails. When you check PERIODICAL, specify the date and time to send the mails in the PERIODICAL setting. CONFIRMATION Sends test e-mail.
Controlling the Monitor with a PC (LAN) ■ SNMP You can configure settings related to SNMP. Caution • After you set SNMP, click [Switch the main power of monitor off and on now.] or turn off the monitor and then turn it on again with the main power switch. When the monitor restarts, wait about 30 seconds and then start the next operation. • If the IP address is changed while the SNMP function is operational, turn off the monitor and then turn it on again with the main power switch.
Troubleshooting If you are experiencing any problem with your display, before calling for service, please review the following troubleshooting tips. There is no picture or sound. • Is the power cord disconnected? (See page 14.) • Is the main power switch off? (See page 16.) • Is the monitor in standby mode (the power LED illuminating in orange)? (See page 16.) • Make sure correct input mode is selected. (See page 21.
Troubleshooting When “AUTO DIMMING” is displayed. • When the internal temperature of the monitor rises excessively, the brightness of the backlight automatically decreases in order to prevent a further temperature rise. If you attempt to use to adjust the brightness while the monitor is in this state, “AUTO DIMMING” is displayed and you cannot change the brightness. • Remove the cause of the excessive temperature rise. The monitor makes a cracking sound.
Specifications nProduct Specifications Model LCD component Max. resolution Max. colors Pixel pitch Viewing angle Screen active area Computer input signal Sync signal PN-L802B 80" Class [80 inch (203.2cm) diagonal] TFT LCD (pixels) 1920 x 1080 Approx. 1.06 billion colors 0.923 mm (H) × 0.923 mm (V) 160° right/left/up/down (contrast ratio ≥ 10) inch (mm) 69-3/4 x 39-1/4 (1771.2 x 996.3) Digital (DVI 1.0 standard-compliant), Analog RGB (0.
Specifications nDimensional Drawings Note that the values shown are approximate values. 70-11/16 [1795] Unit: inch [mm] 5-5/16 [135] VESA holes * 3-1/4 [82] 2-5/8 [66] 74 [1880] 7-7/8 [200] 7-7/8 [200] 3-15/16 3-15/16 [100] [100] 1-15/16 [49] 7-7/8 [200] 46-3/4 [1187] 47-13/16 [1214] Opening height (39-5/8 [1007]) 45-9/16 [1157] Opening width (70-1/16 [1780]) When mounting the monitor, be sure to use a wall-mount bracket that complies with the VESA-compatible mounting method.
Specifications nCompatible signal timing (PC) Screen resolution 640 × 480 VESA 800 × 600 848 × 480 1024 × 768 1152 × 864 1280 × 768 1280 × 800 1280 × 960 1280 × 1024 1360 × 768 1400 × 1050 1440 × 900 1600 × 1200*1 1680 × 1050 1920 × 1200*1 1280 × 720 1920 × 1080 Wide 720 × 400 1024 × 768 US TEXT Sun 1152 × 900 1280 × 1024 1600 × 1000 Hsync Vsync Dot frequency 31.5kHz 37.9kHz 37.5kHz 35.1kHz 37.9kHz 48.1kHz 46.9kHz 31.0kHz 48.4kHz 56.5kHz 60.0kHz 67.5kHz 47.8kHz 60.3kHz 49.7kHz 60.0kHz 64.
Specifications nPC/AV DVI-D (DVI-D 24 pin) No. input terminal pins Function No. Function No. Function TMDS data 2- 13 N.C. 1 TMDS data 2+ 11 TMDS clock shield 2 TMDS data 2+ 14 +5V 2 TMDS data 2 shield 12 TMDS clock- 3 TMDS data 2/4 shield 15 GND 3 TMDS data 2- 13 CEC 4 N.C. 16 Hot-plug detection 4 TMDS data 1+ 14 N.C. 5 N.C.
Mounting Precautions (For SHARP dealers and service engineers) • When installing, removing or moving the monitor, ensure that this is carried out by at least 6 people. • Be sure to use a wall-mount bracket designed or designated for mounting the monitor. • This monitor is designed to be installed on a concrete wall or pillar. Reinforced work might be necessary for some materials such as plaster / thin plastic board / wood before starting installation.
PN-L802B Mu EN12A(1)
