BP68-00468A(J60B_ENG_M Asia) 2005/02/16 07:58 PM Page 1 COLOR TELEVISION SP42Q2 SP43W6 SP43T7 SP43T8/54T8 SP43Q5/47Q5 Owner’s Instructions Before operating the unit, please read this manual thoroughly, and retain it for future reference.
BP68-00468A(J60B_ENG_M Asia) 2005/02/16 07:58 PM Page 2
BP68-00468A(J60B_ENG_M Asia) 2005/02/16 07:58 PM Page 3 Important Warranty Information Regarding Television Format Viewing S tandard screen format televisions (4:3, the aspect ratio of the screen width to height) are primarily designed to view standard format full-motion video. The images displayed on them should primarily be in the standard 4:3 ratio format and constantly moving.
BP68-00468A(J60B_ENG_M Asia) 2005/02/16 07:58 PM Page 4 Contents ◆ FOREWORD ■ Important Warranty Information Regarding Television Format Viewing ........ 3 ◆ CONNECTING AND PREPARING YOUR TELEVISION ■ ■ ■ ■ ■ ■ ■ ■ ■ ■ ■ ■ ■ ■ ■ ■ ■ Control Panels (depending on the model) ..................................................... 6~7 Connection Panels (depending on the model) .............................................. 8 Using a Display Deck (depending on the model) ...................................
BP68-00468A(J60B_ENG_M Asia) 2005/02/16 07:58 PM Page 5 Contents (continued) ◆ USING YOUR TELEVISION (continued) ■ ■ ■ ■ ■ ■ ■ ■ ■ Changing the Sound Standard ...................................................................... Adjusting the Sound Settings ........................................................................ Extra Sound Settings..................................................................................... - Auto volume - Dolby Virtual Setting the Melody Sound .............
BP68-00468A(J60B_ENG_M Asia) 2005/02/16 07:58 PM Page 6 Control Panels (depending on the model) ➢ The actual configuration on your TV may be different, depending on your model.
BP68-00468A(J60B_ENG_M Asia) 2005/02/21 10:39 AM Page 7 Control Panels (depending on the model) ➢ (continued) The actual configuration on your TV may be different, depending on your model.
BP68-00468A(J60B_ENG_M Asia) 2005/02/16 07:58 PM Page 8 Connection Panels (depending on the model) ➢ The actual configuration on your TV may be different, depending on your model.
BP68-00468A(J60B_ENG_M Asia) 2005/02/16 Using a Display Deck 07:58 PM Page 9 (depending on the model) You can display a VCR or DVD Player, etc. by using the display deck. SP43W6 SP54T8 1 Hold the center of the door and lift it up in the direction of arrow. 2 After placing a component you have in the display deck, hold the center of the door and pull it down. ➢ You should display only the component that is within 126mm high.
BP68-00468A(J60B_ENG_M Asia) 2005/02/16 07:58 PM Page 10 Infrared Remote Control TELEVISION STANDBY PICTURE SIZE/ TELETEXT SIZE SELECTION TUNER/CABLE NETWORK SELECTION MAKE THE REMOTE CONTROL WORKS FOR TV, STB, VCR, CABLE, DVD PLAYER DIRECT CHANNEL SELECTION ONE OR TWO-DIGIT CHANNEL SELECTION/ TELETEXT STORE VOLUME INCREASE TEMPORARY SOUND SWITCH-OFF VOLUME DECREASE TELETEXT DISPLAY/ MIX BOTH TELETEXT INFORMATION AND THE NORMAL BROADCAST SWITCH REPEATEDLY BETWEEN THE LAST TWO CHANNELS DISPLAYED
BP68-00468A(J60B_ENG_M Asia) 2005/02/16 07:58 PM Page 11 Connecting to an Aerial or Cable Television Network To view television channels correctly, a signal must be received by the set from one of the following sources: ◆ An outdoor aerial ◆ A cable television network ◆ A satellite network 1 In the first three cases, connect the aerial or network input cable to the 75Ω coaxial socket on the rear of the television.
BP68-00468A(J60B_ENG_M Asia) 2005/02/16 07:58 PM Page 12 Connecting a Satellite Receiver or Decoder Rear of the TV In order to watch television programmes broadcast via a satellite network, you must connect a satellite receiver to the rear of TV. Also, in order to descramble a coded transmission signal, you must connect a decoder to the rear of TV. Using a Coaxial cable Connect a coaxial cable to the: ◆ Receiver (or Decoder) output socket. ◆ Television aerial input socket.
BP68-00468A(J60B_ENG_M Asia) 2005/02/16 07:58 PM Page 13 Switching Your Television On and Off The mains lead is attached to the rear of your television. 1 Plug the mains lead into an appropriate socket. ➢ 2 The main voltage is indicated on the rear of the television and the frequency is 50 or 60Hz. Press the “ I ” button (On/Off) on the front or side of the television. Result: 3 Press the POWER ( the television on. Result: ➢ 4 The Standby indicator on the front of the television lights up.
BP68-00468A(J60B_ENG_M Asia) 2005/02/16 07:58 PM Page 14 Becoming Familiar with the Remote Control The remote control is used mainly to: ◆ Change channels and adjust the volume ◆ Set up the television using the on-screen menu system The following table presents the most frequently used buttons and their functions. Button to Menu Function Used to display the next stored channel. - Used to display the previous stored channel. - Used to display the corresponding channels.
BP68-00468A(J60B_ENG_M Asia) 2005/02/16 07:58 PM Page 15 Plug and Play Feature When the television is initially powered ON, several basic customer settings proceed automatically and subsequently. The following settings are available. Plug & Play Start Plug & Play OK 1 If the television is in Standby mode, press the POWER ( button on the remote control. Result: ) Enter The message Start Plug & Play is displayed for a little while and then Language menu is automatically displayed.
BP68-00468A(J60B_ENG_M Asia) 2005/02/16 07:58 PM Page 16 Plug and Play Feature (continued) If you want to reset this feature... Setup TV Time √ Plug & Play √ Language : English √ Manual Convergence √ Move Press the MENU ( Result: √ Self Focus ▼ 1 2 Press the ▲ or ▼ button until the Setup is selected. Result: More Enter Return ) button. The main menu is displayed. The options available in the Setup group are displayed.
BP68-00468A(J60B_ENG_M Asia) 2005/02/16 07:58 PM Page 17 Choosing Your Language When you start using your television for the first time, you must select the language which will be used for displaying menus and indications. Setup TV √ Time √ Plug & Play 1 Press the MENU ( Result: 2 ) button. Language The main menu is displayed. Result: 3 Press the ENTER ( 4 Press the ▲ or ▼ button until the Language is selected. Press the ENTER ( ) button. √ √ More Enter Return ) button.
BP68-00468A(J60B_ENG_M Asia) 2005/02/16 07:58 PM Page 18 Adjusting the Screen Automatically (Self Focus) Setup TV √ Time √ Plug & Play Language : English √ Self Focus √ Manual Convergence √ ▼ The “Self Focus” feature automatically finds the optimum picture quality when blurring, overlapping colors or incorrect focus occurs. These conditions may be caused by moving your TV. 1 Result: 2 More Move Enter Press the MENU ( The main menu is displayed.
BP68-00468A(J60B_ENG_M Asia) 2005/02/16 07:58 PM Page 19 Deactivating the Automatic Execution of the Self Focus The “Self Focus” feature starts on default. It will automatically begin 10 minutes after switching on the power and the appearance of the screen image. To set the optimum picture quality, the “Self Focus” will automatically begin again after another 30 minutes, as the screen image is then fully stabilised. Setup TV √ Time √ Plug & Play Language 1 Press the MENU ( Result: 2 ) button.
BP68-00468A(J60B_ENG_M Asia) 2005/02/16 07:58 PM Page 20 Removing the “Self Focus” from the Display 1 Press the MENU ( ) button. Setup TV √ Plug & Play Language : English √ Self Focus √ Manual Convergence √ ▼ Result: √ Time More Move Enter Return 2 Press the ENTER ( 4 Press the ▲ or ▼ button until the Self Focus is selected. Press the ENTER ( ) button.
BP68-00468A(J60B_ENG_M Asia) 2005/02/17 10:35 AM Page 21 Adjusting Convergence Manually If the color appears spread out or “smeared” on the screen, the convergence probably needs alignment. Be sure to use the remote control for the convergence adjustments. (The Convergence Adjustment can not be made by using the control buttons on the front panel.) Setup TV √ Time Language 1 Press the MENU ( Result: 2 ) button. The main menu is displayed. √ √ More Move ) button.
BP68-00468A(J60B_ENG_M Asia) 2005/02/16 07:58 PM Page 22 Storing Channels Automatically Channel TV Auto Store √ Manual Store √ Add/Delete √ Sort √ Child Lock √ ▼ More You can scan for the frequency ranges available to you (and availability depends on your country). Automatically allocated programme numbers may not correspond to actual or desired programme numbers. However you can sort numbers manually and clear any channels you do not wish to watch.
BP68-00468A(J60B_ENG_M Asia) 2005/02/16 07:58 PM Page 23 Sorting the Stored Channels This operation allows you to change the programme numbers of stored channels. This operation may be necessary after using auto store. You can delete the channels you do not want to keep. 1 2 Press the MENU ( ) button. The main menu is displayed. Result: Press the ENTER ( 4 Press the ▲ or ▼ button until the Sort is selected. Press the ENTER ( ) button. Result: 5 6 7 ) button.
BP68-00468A(J60B_ENG_M Asia) 2005/02/16 07:58 PM Page 24 Storing Channels Manually You can store the television channels, including those received via cable networks. Channel TV Auto Store √ Manual Store √ Add/Delete √ Sort √ Child Lock √ When storing channels manually, you can choose: ◆ Whether or not to store each of the channels found ◆ The programme number of each stored channel which you wish to identify ▼ More Move Enter Return 1 Press the MENU ( Result: ) button.
BP68-00468A(J60B_ENG_M Asia) 2005/02/16 07:59 PM Page 25 Storing Channels Manually (continued) 10 If you know the number of the channel to be stored, see the following steps. Manual Store TV ◆ Press the ▲ or ▼ button until the Channel is selected. Prog. : P Color System : AUTO √ ◆ Press the œ or √ button. Sound System : BG √ Search : 105MHz Channel : C -- Store : ? ◆ Press the ▲ or ▼ button to select C (Air channel) or S (Cable channel). ◆ Press the œ or √ button.
BP68-00468A(J60B_ENG_M Asia) 2005/02/16 07:59 PM Page 26 Skipping Unwanted Channels Channel TV Auto Store √ Manual Store √ Add/Delete √ Sort √ Child Lock √ You can exclude the channels you chosen from the channels you scanned. When you scan through the stored channels, those you have chosen to skip are not displayed. All of the channels that you do not specifically choose to skip are displayed during scanning.
BP68-00468A(J60B_ENG_M Asia) 2005/02/16 07:59 PM Page 27 Locking the Channel This feature allows you to lock the television so that it cannot be switched on via the front panel. It can, however, still be switched on via the remote control. Thus, by keeping the remote control away from unauthorised users, such as children, you can prevent them from watching unsuitable programmes. 1 Press the MENU ( Result: Channel TV ) button.
BP68-00468A(J60B_ENG_M Asia) 2005/02/16 07:59 PM Page 28 Fine Tuning Channel Reception If the reception is clear, you do not have to fine tune the channel, as this is done automatically during the search and store operation. If the signal is weak or distorted, you may have to fine tune the channel manually. Channel TV ▲ More √ Fine Tune LNA : √ Off 1 Press the MENU ( Result: Move Enter Return 2 ) button. The main menu is displayed. Press the ▲ or ▼ button until the Channel is selected.
BP68-00468A(J60B_ENG_M Asia) 2005/02/16 07:59 PM Page 29 Using the LNA (Low Noise Amplifier) Feature This feature is very useful in the situation that the TV is used in a weak signal, and amplifies the TV signal in the weak signal area, but not noise. ▲ More This feature is working only in a weak signal condition, and that is memorized on relevant channel’s additional information. 1 Press the MENU ( ) button. Result : The main menu is displayed.
BP68-00468A(J60B_ENG_M Asia) 2005/02/16 07:59 PM Page 30 Activating Panel Button Lock Setup TV ▲ More Blue Screen : Off √ Melody : On √ Panel Lock : Off √ This feature allows you to lock the TV panel buttons so that it cannot be operated via the TV panel. It can, however, still be operated via the remote control. Only remote control can release the panel lock setting, so keep the remote control away from unauthorized users.
BP68-00468A(J60B_ENG_M Asia) 2005/02/16 07:59 PM Page 31 Changing the Picture Standard You can select the type of picture which best corresponds to your viewing requirements. Picture TV 1 2 Press the MENU ( ) button. The main menu is displayed. Result: Press the ▲ or ▼ button until the Picture is selected. Result : The options available in the Picture group are displayed. 3 Press the ENTER ( ) button. Result : The Mode is selected. 4 Press the ENTER ( ) button again.
BP68-00468A(J60B_ENG_M Asia) 2005/02/16 07:59 PM Page 32 Customizing the Picture Settings Your television has several settings options that allow you to control picture quality. Picture TV Mode √ : Dynamic : Normal √ Size : Normal √ Scan Mode : Auto √ Digital NR : Off √ √ Custom Color Tone Move Enter 1 Press the MENU ( Result: 2 The main menu is displayed. Press the ▲ or ▼ button until the Picture is selected. Result: Return ) button.
BP68-00468A(J60B_ENG_M Asia) 2005/02/16 07:59 PM Page 33 Selecting the Picture Size (4:3 Model) You can select the picture size which best corresponds to your viewing requirements. Picture TV 1 2 Press the MENU ( ) button. The main menu is displayed. Result: Mode Press the ▲ or ▼ button until the Picture is selected. Result : The options available in the Picture group are displayed.
BP68-00468A(J60B_ENG_M Asia) 2005/02/16 07:59 PM Page 34 Selecting the Picture Size (Wide Model) You can select the picture size which best corresponds to your viewing requirements. Picture TV Mode √ : Dynamic : Normal √ √ Custom Color Tone Size : 16:9 √ Scan Mode : Auto √ Digital NR : Off √ Move Enter 16:9 Panorama Zoom1 Zoom2 4:3 Cinema1 Cinema2 Move Press the MENU ( ) button. Result: The main menu is displayed. 2 Press the ▲ or ▼ button until the Picture is selected.
BP68-00468A(J60B_ENG_M Asia) 2005/02/16 07:59 PM Page 35 Selecting the Picture Size (Wide Model) (continued) 4:3 Signal 16:9 Panorama Zoom1 16:9 Panorama Zoom1 4:3 Cinema1 4:3 Cinema1 Cinema2 16:9 Panorama Zoom1 16:9 Panorama Zoom1 4:3 Cinema1 4:3 Cinema1 Zoom2 Zoom2 Cinema2 16:9 Signal Zoom2 Zoom2 Cinema2 Cinema2 English - 35
BP68-00468A(J60B_ENG_M Asia) 2005/02/17 10:29 AM Page 36 Selecting the Scan Mode Picture TV Mode √ : Dynamic Color Tone : Normal √ Size : Normal √ Scan Mode : Auto √ Digital NR : Off √ √ Custom Move Enter Return You will normally find that scan mode is best set to Natural to reduce any slight picture flicker. However, it is possible that some occasional broadcasts (NTSC-M) may benefit by changing the scan mode.
BP68-00468A(J60B_ENG_M Asia) 2005/02/16 07:59 PM Page 37 Using the Digital NR (Digital Noise Reduction) Feature If the signal received by your television is weak, you can activate this feature to help reduce any static and ghosting that may appear on the screen. Picture TV Mode 1 Press the MENU ( Result: 2 ) button. The main menu is displayed.
BP68-00468A(J60B_ENG_M Asia) 2005/02/16 07:59 PM Page 38 Setting the Blue Screen Mode If no signal is being received or the signal is very weak, a blue screen automatically replaces the noisy picture background. If you wish to continue viewing the poor picture, you must set the Blue screen mode to Off. Setup TV ▲ More Blue Screen : Off √ Melody : On √ Panel Lock : Off √ 1 Press the MENU ( Result: Move Enter Return 2 TV ▲ The options available in the Setup group are displayed.
BP68-00468A(J60B_ENG_M Asia) 2005/02/16 07:59 PM Page 39 Changing the Sound Standard You can select the type of special sound effect to be used when watching a given broadcast. Sound TV 1 Press the MENU ( Result: ) button. The main menu is displayed. Mode : Equalizer Auto Volume : Off Standard Music Movie Speech Normal Custom √ Off √ Dolby Virtual : 2 The options available in the Sound group are displayed. Move Press the ENTER ( Result: The Mode is selected.
BP68-00468A(J60B_ENG_M Asia) 2005/02/16 07:59 PM Page 40 Adjusting the Sound Settings The sound settings can be adjusted to suit your personal preferences. Sound TV Mode : √ Custom 1 Result: √ Equalizer Auto Volume : Off √ Dolby Virtual : Off √ Press the MENU ( 2 Enter TV Return The main menu is displayed. Press the ▲ or ▼ button until the Sound is selected. Result: Move ) button. The options available in the Sound group are displayed.
BP68-00468A(J60B_ENG_M Asia) 2005/02/16 07:59 PM Page 41 Extra Sound Settings ◆ Auto Volume Each broadcasting station has its own signal conditions, and so it is not easy for you to adjust the volume every time the channel is changed. This feature lets you automatically adjust the volume of the desired channel by lowering the sound output when the modulation signal is high or by raising the sound output when the modulation signal is low.
BP68-00468A(J60B_ENG_M Asia) 2005/02/16 07:59 PM Page 42 Setting the Melody Sound You can hear clear melody sound when the television is powered on or off. Setup TV ▲ More Blue Screen : Off √ Melody : On √ Panel Lock : Off √ 1 Result: 2 Move Enter ▲ : Off √ Melody : √ Panel Lock : On Off On Off Move Enter English - 42 The main menu is displayed. The options available in the Setup group are displayed.
BP68-00468A(J60B_ENG_M Asia) 2005/02/16 07:59 PM Page 43 Selecting the Sound Mode (depending on the model) The “DUAL I-II” button displays/controls the processing and output of the audio signal. When power is switched on, the mode is automatically preset to either “Dual I ” or “Stereo”, depending on the current transmission.
BP68-00468A(J60B_ENG_M Asia) 2005/02/16 07:59 PM Page 44 Setting and Displaying the Current Time Setup TV √ Time Language : √ English Self Focus √ Manual Convergence √ More Move ➢ √ Plug & Play ▼ You can set the television’s clock so that the current time is displayed by pressing the “INFO ( )” button. You must also set the time if you wish to use the automatic on or off timers.
BP68-00468A(J60B_ENG_M Asia) 2005/02/16 07:59 PM Page 45 Setting the Sleep Timer You can select a time period of between 30 and 180 minutes after which the television automatically switches to Standby mode. Setup TV √ Time √ Plug & Play 1 Press the MENU ( Result: 2 ) button. Language The main menu is displayed. Press the ▲ or ▼ button until the Setup is selected. Result: 3 Press the ENTER ( 4 Press the ▲ or ▼ button until the Time is selected. Press the ENTER ( ) button.
BP68-00468A(J60B_ENG_M Asia) 2005/02/16 07:59 PM Page 46 Switching the Television On and Off Automatically You can set the On/Off timers so that the television will: √ ◆ Switch on automatically and tune to the channel of your choice at the time you select √ ◆ Switch off automatically at the time you select Setup TV Time Plug & Play Language : √ English Self Focus √ Manual Convergence √ ▼ ➢ More Move Enter Return 1 Press the MENU ( Result: Time TV am √ Clock : 11 : 35 Sleep Ti
BP68-00468A(J60B_ENG_M Asia) 2005/02/16 07:59 PM Page 47 Viewing an External Signal Source Use the remote control to switch between viewing signals from connected equipment, such as VCR, DVD, Set-Top Box and the TV source (broadcast or cable) Input TV Source List : √ TV √ Edit Name 1 Press the MENU ( Result: 2 3 The options available in the Input group are displayed. Press the ENTER ( Result: ) button. ) button. Move Enter Return The Source List is selected.
BP68-00468A(J60B_ENG_M Asia) 2005/02/16 07:59 PM Page 48 Teletext Feature Most television channels provide written information services via teletext. Information provided includes: ◆ Television programme times ◆ News bulletins and weather forecasts ◆ Sports results ◆ Travel information This information is divided into numbered pages (see diagram). Part Contents A Selected page number. B Broadcasting channel identity. C Current page number or search indications. D Date and time. E Text.
BP68-00468A(J60B_ENG_M Asia) 2005/02/16 07:59 PM Page 49 Displaying the Teletext Information You can display Teletext information at any time on your television. Teletext information to be displayed correctly, ☛ For channel reception must be stable; otherwise: ◆ Information may be missing ◆ Some pages may not be displayed 1 Select the channel providing the Teletext service using the P or button. 2 Press the TTX/MIX ( ) button to activate the teletext mode. The contents page is displayed.
BP68-00468A(J60B_ENG_M Asia) 2005/02/16 07:59 PM Page 50 Selecting Display Options When you have displayed a Teletext page, you can select various options to suit your requirements. To display...
BP68-00468A(J60B_ENG_M Asia) 2005/02/16 07:59 PM Page 51 Selecting a Teletext Page You can enter the page number directly by pressing the numeric buttons on the remote control. 1 Enter the three-digit page number given in the content by pressing the corresponding numeric buttons. Result: The current page counter is incremented and the page is then displayed. If the selected page is linked with several secondary pages, the secondary pages are displayed in sequence.
BP68-00468A(J60B_ENG_M Asia) 2005/02/16 07:59 PM Page 52 Storing Teletext Pages (depending on the model) You can store up to four teletext pages to display them later at leisure. 1 Select the LIST mode using the Result: ➢ English - 52 button. Four 3-digit numbers are displayed in different colors. The button is used to switch between the LIST and FLOF modes. 2 Press the colored button corresponding to the page that will be replaced. 3 Enter the new page number using the numeric buttons.
BP68-00468A(J60B_ENG_M Asia) 2005/02/16 07:59 PM Page 53 Connecting to the External Devices Rear of the TV (Input/Output) ③ VCR Decoder / Video game device ① ➃ Video disc player ② or or Satellite receiver ⑤ ① This end can be fitted with: ◆ Three RCA connectors (VIDEO + AUDIO-L and R) ② This end can be fitted with: ③ ➃ ⑤ ➅ ◆ A SCART connector ◆ Three RCA connectors (VIDEO + AUDIO-L and R) ◆ An S-Video connector and two audio RCA connectors (L+R) If you have a second VCR and wish to copy ca
BP68-00468A(J60B_ENG_M Asia) 2005/02/16 07:59 PM Page 54 Connecting to the Audio Output ➢ The AUDIO-L and R RCA connectors are used for equipment, such as an audio system (to take full advantage of the Surround sound effect).
BP68-00468A(J60B_ENG_M Asia) 2005/02/16 07:59 PM Page 55 Connecting to the S-Video Input ➢ The S-VIDEO (or S-VIDEO INPUT) and RCA (AUDIO-L and R) connectors are used for equipment with an S-Video output, such as a camcorder or VCR. Side of the TV (depending on the model) ① Camcorder and VCR ① and ① To play pictures and sound, both the S-VIDEO (or S-VIDEO INPUT) and RCA connectors must be used.
BP68-00468A(J60B_ENG_M Asia) 2005/02/16 07:59 PM Page 56 Connecting to the Component Input Rear of the TV DVD DTV receiver ➢ The COMPONENT IN connectors are used for equipment with a DVD or DTV receiver output.
BP68-00468A(J60B_ENG_M Asia) 2005/02/16 07:59 PM Page 57 Programming the Remote Control for Other Components Your TV comes equipped with a universal remote control. In addition to controlling the TV, the universal remote control can also operate a VCR, Cable box, DVD and Set-Top Box made by Samsung (even if your VCR, Cable box and DVD are made by manufacturers other than Samsung). ➢ The remote control might not be compatible with all VCRs, DVD players and Cable boxes.
BP68-00468A(J60B_ENG_M Asia) 2005/02/16 07:59 PM Page 58 Programming the Remote Control for Other Components VCR Remote Control Codes Cable Box (CATV) Remote Control Codes DVD Remote Control Codes English - 58
BP68-00468A(J60B_ENG_M Asia) 2005/02/16 07:59 PM Page 59 Troubleshooting: Before Contacting Service Personnel Before contacting Samsung after-sales service, perform the following simple checks. If you cannot solve the problem using the instructions below, note the model and serial number of the television and contact your local dealer. No sound or picture ◆ Check that the mains lead has been connected to a wall socket. ◆ Check that you have pressed the “ I ” button (On/Off) and the POWER ( ) button.
BP68-00468A(J60B_ENG_M Asia) 2005/02/16 07:59 PM Page 60 - AFTER SALES SERVICE - Do not hesitate to contact your retailer or service agent if a change in the performance of your product indicates that a faulty condition may be present.
