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14-2

Samsung Electronics

2. Concept of Sound

What is Sound Range?

People can listen to the sounds with frequency between 200Hz~20.000Hz

As time goes by, home theater system has become recognized as a system that helps listen sound
closer to the original sound rather than video. In this 21st century, most movie and animation films
will be produced for home theater and reproduce sound closer to original sound.

What is Sound Pressure?

* A measure of how well speaker converts electric signal it receives to sound
* Unit of sound pressure is decibel and mainly measures the size of sound at 1 m away after

sending 1 W power from speaker.

❋

High sound pressure doesn't necessary mean good performance

What is Timbre?

* How well the unique sound of musical instrument is expressed
* Better if violin and cello sound are accurately distinguished. Good timbre means high quality.

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Summary of Contents for HT-P70

Page 1: ...SYSTEM Features Multi Disc Playback FM Tuner Dolby Pro Logic II DTS Digital Theater Systems TV Screen Saver Function Customized TV Screen Display Confidential MODEL HT P70 Application Model HT HT P70 HT P70 HT P70K P70K HT HT TP75 HT TP75 HT TKP75 TKP75 HT HT KP70 KP70 ...

Page 2: ... Samsung Electronics Co Ltd AUG 2005 Printed in Korea Code no AH68 01771K ELECTRONICS ...

Page 3: ...ion Mode Explanation 4 1 Ch5 How to disassemble How to disassemble 5 1 Ch6 Troubleshooting 1 No Power 6 1 2 No Output 6 2 Ch7 Exploded View Parts List 1 Total Exploded View 7 1 2 Parts List 7 5 Ch8 Electrical Parts List Electrical Parts List 8 1 Ch9 Block Diagram MAIN 9 1 Ch10 Wiring Diagram Wiring Diagram 10 1 Ch11 PCB Diagram 1 MAIN 11 1 2 FRONT KEY 11 2 3 FRONT MIC 11 2 4 HDMI SERVO 11 3 Ch12 S...

Page 4: ...rrent for Appliances and Underwriters Laboratories UL Publication UL1410 59 7 With the unit completely reassembled plug the AC line cord directly into a 120V AC outlet With the unit s AC switch first in the ON position and then OFF measure the current between a known earth ground metal water pipe etc and all exposed metal parts Examples Handle brackets metal cabinets screwheads and control shafts ...

Page 5: ...nplug the unit s AC power cord from the AC power source before attempting to a Remove or reinstall any component or assembly b Disconnect an electrical plug or connector c Connect a test component in parallel with an electrolytic capacitor 3 Some components are raised above the printed circuit board for safety An insulation tube or tape is sometimes used The internal wiring may be clamped to preve...

Page 6: ...ot remove a replacement ESD from its protective package until you are ready to install it Most replacement ESDs are packaged with leads that are electrically shorted together by conductive foam aluminum foil or other conductive materials 8 Immediately before removing the protective material from the leads of a replacement ESD touch the protective material to the chassis or circuit assembly into wh...

Page 7: ...d plane which is grounded 3 The repair technician must wear a wrist strap which is grounded to the copper sheet 4 To remove the Optical Pickup block Place the set on the conductive sheet and momentarily touch the conductive sheet with both hands While working do not allow any electrostatic sources such as clothes to touch the unit 5 Ground the Short Terminal located on the PCB inside the Pickup As...

Page 8: ...ted with wide screen high quality projector Dolby digital and DTS sound effects Now you can enjoy surround sound field wieh realistic presence and Dolby digital at your home as if you are in a movie theater As time goes by home theater system has become recognized as a system that helps listen sound closer to the original sound rather than video In this 21st century most movie and animation films ...

Page 9: ... will be produced for home theater and reproduce sound closer to original sound What is Sound Pressure A measure of how well speaker converts electric signal it receives to sound Unit of sound pressure is decibel and mainly measures the size of sound at 1 m away after sending 1 W power from speaker High sound pressure doesn t necessary mean good performance What is Timbre How well the unique sound...

Page 10: ...des surround dynamic sound effects so that you can even feel the direction of sound 5 channel 0 1 channel Power amp is embedded in active sub woofer Require separate amp since there is no amp in passive sub woofer No difference in performance of active sub woofer and passive sub woofer Center Speaker Voice over 95 Front Speaker L R Music Sound Rear Speaker L R Sound Effect A B C Subwoofer Low Soun...

Page 11: ...eater format Stereo Is used in general audio and analog TV and and consists of 2 channels at front left right Dolby Surround In this sound format 4 audio channels Front left right center surround are entered in 2 channel and reproduce in 4 channels through device with Dolby decoder Center channel is not completely separated so that it forms virtual center channel with help of front left right chan...

Page 12: ...ome theater Reinforced from Dolby Prologic Rear surround left right channels give different sound Support sub woofer reinforcing Bass Dolby Digital is also called AC 301 AC 3 Audo Coding 3 3rd digital audio coding Dolby Research Center has developed DTS Digital Theater System Technology of providing 5 1 channel sound higher quality than Dolby Digital Home appliance produced to apply system install...

Page 13: ...isting Dolby Prologic Ex Profound sound adds more realistic presence from 5 speakers and sub woofer when you watch soccer match DTS Digital Theater System THX Abbreviation of Tomlison Holman s Experiment THX is not a sound format like a Dolby or DTS but is a standard of sound Like standard KS mark in Korea THX means good certification in sound effects THX issues certificate when a movie theater or...

Page 14: ...For Music Movie AV Receiver Dedicated Lamp for Home Theater Preferred by Home Theater mania DVD Receiver DVD Player Amp Radio Tuner Suitable for beginner of Home Theater Many A V companies adopt DVD receiver type for expansion of easy and economic Home Theater system Popular Korean Products Popular for those who pursue relatively good sound quality at low price Product priced between 400 000 won 6...

Page 15: ...m Pre Amp into big sound so that speaker can vibrate Integrated Amp A device that combines pre amp and power amp into one Receiver A device that contains tuner for radio broadcasting and integrated amp A V Receiver General Amplifier Support 2 channels Left Right Speaker Mainly reproduce music No decoder cannot cope with various sound formats A V Receiver Support multi channel support 5 1 channel L...

Page 16: ...o upgrade after purchasing a low priced sys tem Computer will be of no use when it is outdated But home theater system can be utilized in various ways due to feature of A V device Speaker Speaker system consists of speaker unit and enclosure The type and price range are diverse from expensive big speaker to miniature thin speaker Difference between famous speaker and big A V speaker Speaker units ...

Page 17: ...ion Woofer for low tone Much bigger size than other speaker unit Enclosure Case of speaker unit Enclosure sways sound quality of reproduction Low tone is almost acattered without enclosure and only high sound tone is heard Type of Speaker System Full Range Speaker A speaker system producing sound with one speaker unit 2 Way Type A speaker system designed using units of 2 woofers for bass and tweet...

Page 18: ...ear speaker output Subwoofer speaker output Frequency range S N Ratio Channel separation Input sensitivity G E N E R A L T U N E R F M T U N E R A M V I D E O O U T P U T A M P L I F I E R 80W 3 5Kg 430 x 60 x 340 mm 5 C 35 C 10 75 10dB 60dB 0 5 55dB 40dB 2 1 0Vp p 75Ω load Compositive Video 1 0Vp p 75Ω load RGB Signal 0 714Vp p 75Ω load Y 1 0Vp p 75Ω load Pr 0 70Vp p 75Ω load Pb 0 70Vp p 75Ω load...

Page 19: ...en Do not use the following types of disc Many DVD discs are encoded with copy protection Because of this you should only connect your DVD player directly to your TV not to a VCR Connecting to a VCR results in a distorted pic ture from copy protected DVD discs This product incorporates copyright protection technology that is protected by methods claims of certain U S patents and other intellectual...

Page 20: ... be played only up to the blank segment A maximum of 9 999 images can be stored on a single CD When playing a Kodak Fuji Picture CD only the JPEG files in the picture folder can be played Picture discs other than Kodak Fuji Picture CDs may take longer to start playing or may not play at all Disc Recording Format CD R MP3 Discs Only CD R discs with MP3 files in ISO 9660 or Joliet format can be play...

Page 21: ...s 3 Accessories AH39 40001V CABLE AUDIO CABLE 1P 1P 3000MM AH42 00018A ANTENNA FM t150S1F 1 1500 50m AH42 00019A ANT LOOP S0160BL 16 9uH 1KH AH59 01527A REMOCON ASSY HT P70 EUR 57KEY Code no Description Specification Remarks ...

Page 22: ...Front Speakers Place these speakers in front of your listening posi tion facing inwards about 45 toward you Place the speakers so that their tweeters will be at the same height as your ear Align the front face of the front speakers with the front face of the center speaker or place them slightly in front of the center speakers Center Speaker It is best to install it at the same height as the front...

Page 23: ...he speaker 1 Insert the black wire into the black terminal and the gray wire into the gray terminal and then release the tab 2 Connect the connecting plugs to the back of the DVD player 3 Gray Back of the Speakers Back of the Main Unit Rear Speaker R Front Speaker R Front Speaker L Subwoofer Center Speaker Rear Speaker L Blue Gray Purple White Red Green HT P70 ...

Page 24: ...he speaker 1 Insert the black wire into the black terminal and the gray wire into the gray terminal and then release the tab 2 Connect the connecting plugs to the back of the DVD player 3 Gray Back of the Speakers Back of the Main Unit Rear Speaker R Front Speaker R Subwoofer Center Speaker Rear Speaker L Front Speaker L Blue Gray Purple White Red Green HT TP75 ...

Page 25: ... works only with DVDs If pressed twice STOP is displayed and if PLAY PAUSE button is pressed playback starts from the beginning To temporarily pause playback press PLAY PAUSE during playback To resume playback press PLAY PAUSE button again DVD SACD VCD CD Playback starts automatically Disc Playback Selecting the Video Format Press and hold NT PAL button on the remote controller for over 5 seconds ...

Page 26: ...ess the Select AUDIO or Select SUBTITLE buttons on the remote control You can use the SUBTITLE button on the remote control to select a subtitle language Depending on the disc the Subtitle and Audio Language func tions may not work Audio Language Selection Function DVD Subtitle Language Selection Function DVD 2 Press Cursor button to move to SUBTITLE display 1Press INFO button twice 3 Press Cursor...

Page 27: ...When playing a VCD version 2 0 you can select and view various scenes according to the menu screen PBC ON This VCD disc is version 2 0 The disc is played back according to the menu screen Some functions may be disabled When some functions are disabled select PBC OFF to enable them PBC OFF This VCD disc is version 1 1 The disc is played back in the same way as with a music CD Disc menu display may ...

Page 28: ...ress and hold either button the playback speed will change as follows 2x 4x 8x 32x Normal DIVX file can be zoomed only in ZOOM X2 mode Zoom function is not available when playing a MPEG1 video file Note Zoom Function 2 Press Cursor buttons to move to the area you want to enlarge 1 Press ZOOM button Each time you press the button your selection will toggle between ZOOM X2 and ZOOM OFF DivX Playback...

Page 29: ... formats are not sup ported the user may experience problems such as broken images or no sound 2 Caption Function You must have some experience with video extraction and editing in order to use this feature properly To use the caption function save the caption file smi in the same file name as that of the DivX media file avi within the same folder Example Root Samsung_Bluetek_007CD1 avi Samsung_Bl...

Page 30: ...Samsung Electronics 4 1 4 Adjustments Protection Mode Explanation ...

Page 31: ...Samsung Electronics 5 1 5 How to disassemble ...

Page 32: ...5 2 Samsung Electronics ...

Page 33: ...Samsung Electronics 5 3 ...

Page 34: ...Samsung Electronics 6 1 6 TroubleShooting 1 NO Power ...

Page 35: ...6 2 Samsung Electronics 2 NO Output ...

Page 36: ...1 7 Exploded Views and Parts List 1 Total Exploded View AC320 AC320 AD502 AW140 AC010 AK170 AK323 AB263 AH340 AK290 AD280 AL140 AH340 AH320 AC020 AH290 AC050 AH320 AB288 AC080 AB100 AD332 AD333 AH410 AS070 AD360 AD343 AD342 ...

Page 37: ...7 2 Samsung Electronics AC320 AC320 AD502 AW140 AC010 AK170 AK323 AB263 AH340 AK290 AD280 AL140 AH340 1 1 Exploded View PART1 A ...

Page 38: ...Samsung Electronics 7 3 AH320 AC020 AH290 AC050 AD343 AD342 1 2 Exploded View PART2 B ...

Page 39: ...7 4 Samsung Electronics AH320 AB288 AC080 AB100 AD332 AD333 AH410 AS070 AD360 1 2 Exploded View PART2 C ...

Page 40: ...P70 CIS 1 AH64 03494E DECO TOP ABS GRY HT P70K CIS 1 AH64 03494F DECO TOP ABS GRY HT TKP75 CIS 1 AH64 03494G DECO TOP ABS GRY HT TP75 EUR 1 AH64 03494H DECO TOP ABS GRY HT P70 NO EUR 1 AH64 03494J DECO TOP ABS GRY HT TP75 NO EUR 1 AH64 03494L DECO TOP ABS GRY HT P70N 1 AH64 03501A DOOR DVD ABS GRY 1 AH64 03501B DOOR DVD ABS GRY 1 AH260 AH61 01869A HOLDER HEATSINK ABS GF30 1 AH320 AH61 01967A HOLDE...

Page 41: ...C CER CHIP 100nF 10 16V X7R TP 1608 DC8 2203 005148 C CER CHIP 100nF 10 16V X7R TP 1608 DC9 2203 005148 C CER CHIP 100nF 10 16V X7R TP 1608 DD1 0407 000116 DIODE ARRAY DAP202K 80V 100mA CK2 3 SOT DD2 0403 001062 DIODE ZENER UDZ4 7B 4 55 4 75V 200MW SOD DL1 3301 001495 BEAD SMD 120ohm 2012 2500mA TP 115ohm 1 DL2 3301 001495 BEAD SMD 120ohm 2012 2500mA TP 115ohm 1 DQ1 0501 000002 TR SMALL SIGNAL KSA...

Page 42: ...X7R TP 1608 MC23 2203 005221 C CER CHIP 15nF 10 50V X7R TP 1608 MC24 2203 000815 C CER CHIP 0 033NF 5 50V C0G TP 1608 MC25 2401 000042 C AL 100uF 20 16V GP TP 6 3x7 5 MC26 2401 000042 C AL 100uF 20 16V GP TP 6 3x7 5 MC27 2203 005148 C CER CHIP 100nF 10 16V X7R TP 1608 MC28 2401 000042 C AL 100uF 20 16V GP TP 6 3x7 5 MC29 2401 000042 C AL 100uF 20 16V GP TP 6 3x7 5 MC3 2203 005065 C CER CHIP 1000nF...

Page 43: ...10W TP 1608 MR31 2007 000070 R CHIP 0ohm 5 1 10W TP 1608 MR32 2007 000087 R CHIP 6 8Kohm 5 1 10W TP 1608 MR33 2007 000087 R CHIP 6 8Kohm 5 1 10W TP 1608 MR35 2007 000962 R CHIP 5 1Kohm 1 1 10W TP 1608 MR36 2007 000087 R CHIP 6 8Kohm 5 1 10W TP 1608 MR37 2007 000070 R CHIP 0ohm 5 1 10W TP 1608 MR38 2007 000113 R CHIP 33ohm 5 1 10W TP 1608 MR39 2007 000113 R CHIP 33ohm 5 1 10W TP 1608 MR4 2007 00007...

Page 44: ...0mA TP 115ohm 1 SR17 2007 000102 R CHIP 100Kohm 5 1 10W TP 1608 SR18 2007 000102 R CHIP 100Kohm 5 1 10W TP 1608 SR19 2007 000071 R CHIP 22ohm 5 1 10W TP 1608 SR20 2007 000071 R CHIP 22ohm 5 1 10W TP 1608 SR21 2007 000092 R CHIP 15Kohm 5 1 10W TP 1608 SR22 2007 000092 R CHIP 15Kohm 5 1 10W TP 1608 SR23 2007 000109 R CHIP 1Mohm 5 1 10W TP 1608 SR24 2007 000077 R CHIP 470ohm 5 1 10W TP 1608 SR25 2007...

Page 45: ...10W TP 1608 UR8 2007 000072 R CHIP 47ohm 5 1 10W TP 1608 UR80 2007 000074 R CHIP 100ohm 5 1 10W TP 1608 UR81 2007 000074 R CHIP 100ohm 5 1 10W TP 1608 UR82 2007 000074 R CHIP 100ohm 5 1 10W TP 1608 UR83 2007 000074 R CHIP 100ohm 5 1 10W TP 1608 UR84 2007 000074 R CHIP 100ohm 5 1 10W TP 1608 UR86 2007 000078 R CHIP 1Kohm 5 1 10W TP 1608 UR88 2007 000074 R CHIP 100ohm 5 1 10W TP 1608 UR89 2007 00007...

Page 46: ...787 C CER CHIP 0 33NF 5 50V C0G TP 2012 C14FR 2203 000787 C CER CHIP 0 33NF 5 50V C0G TP 2012 C14RL 2203 000787 C CER CHIP 0 33NF 5 50V C0G TP 2012 C14RR 2203 000787 C CER CHIP 0 33NF 5 50V C0G TP 2012 C14SW 2401 002300 C AL 47uF 20 50V GP TP 6 3x11 5 C150 2203 005249 C CER CHIP 100nF 10 50V X7R TP 1608 C151 2203 005249 C CER CHIP 100nF 10 50V X7R TP 1608 C152 2203 005249 C CER CHIP 100nF 10 50V X...

Page 47: ...249 C CER CHIP 100nF 10 50V X7R TP 1608 EMC12 2203 005249 C CER CHIP 100nF 10 50V X7R TP 1608 EMC13 2203 005249 C CER CHIP 100nF 10 50V X7R TP 1608 EMC14 2203 005249 C CER CHIP 100nF 10 50V X7R TP 1608 EMC15 2203 000257 C CER CHIP 10nF 10 50V X7R 1608 EMC16 2203 000257 C CER CHIP 10nF 10 50V X7R 1608 EMC17 2203 000257 C CER CHIP 10nF 10 50V X7R 1608 EMC18 2203 000257 C CER CHIP 10nF 10 50V X7R 160...

Page 48: ...18SW 2007 000052 R CHIP 10Kohm 1 1 10W TP 1608 R19SW 2007 000052 R CHIP 10Kohm 1 1 10W TP 1608 R1CR 2007 000070 R CHIP 0ohm 5 1 10W TP 1608 R1FR 2007 000070 R CHIP 0ohm 5 1 10W TP 1608 R1RR 2007 000070 R CHIP 0ohm 5 1 10W TP 1608 R1SW 2007 000070 R CHIP 0ohm 5 1 10W TP 1608 R2 2007 000074 R CHIP 100ohm 5 1 10W TP 1608 R20 2007 000309 R CHIP 10ohm 5 1 10W TP 1608 R20SW 2007 002425 R CHIP 1ohm 5 1 1...

Page 49: ...07 000023 R CHIP 120ohm 5 1 8W TP 2012 EC4 2007 000029 R CHIP 0ohm 5 1 8W TP 2012 VLR3 2007 000030 R CHIP 560ohm 5 1 8W TP 2012 VLR4 2007 000030 R CHIP 560ohm 5 1 8W TP 2012 FR2 2007 000241 R CHIP 1 5Kohm 5 1 8W TP 2012 FR3 2007 000267 R CHIP 1 8Kohm 5 1 8W TP 2012 VLR2 2007 000300 R CHIP 10Kohm 5 1 8W TP 2012 VLR1 2007 000300 R CHIP 10Kohm 5 1 8W TP 2012 FR9 2007 000300 R CHIP 10Kohm 5 1 8W TP 20...

Page 50: ...B30 3301 001495 BEAD SMD 120ohm 2012 2500mA TP 115ohm 1 FB4 3301 001495 BEAD SMD 120ohm 2012 2500mA TP 115ohm 1 FB6 3301 001495 BEAD SMD 120ohm 2012 2500mA TP 115ohm 1 FB7 3301 001495 BEAD SMD 120ohm 2012 2500mA TP 115ohm 1 FB8 3301 001495 BEAD SMD 120ohm 2012 2500mA TP 115ohm 1 HC19 2203 005148 C CER CHIP 100nF 10 16V X7R TP 1608 HL1 3301 001495 BEAD SMD 120ohm 2012 2500mA TP 115ohm 1 HL2 3301 00...

Page 51: ...ELS 5 AH81 01783B A S PART FRONT SPK SYSTEM PS FP70E PS AH81 01783F A S PART NET FRAME PS FP70E NET FRAME AH81 01783G A S PART FRONT PANEL PS FP70E FRONT PA AH81 01783H A S PART REAR CASE PS FP70E REAR CASE AH81 01783J A S PART FOOT PS FP70E FOOT FOOT for F AH81 01783Q SPEAKER PS P70 SPK WOOFER UNIT 56MM 8 AH81 01783R SPEAKER PS P70 SPK TWEETER UNIT 11 MM AH81 01783C A S PART REAR SPK SYSTEM PS RP...

Page 52: ...Samsung Electronics 9 1 9 Block Diagram 1 MAIN Part ...

Page 53: ...Samsung Electronics 10 1 10 Wiring Diagram ...

Page 54: ...Samsung Electronics 11 1 11 PCB Diagram 1 MAIN ...

Page 55: ...11 2 Samsung Electronics 2 FRONT KEY 3 FRONT MIC ...

Page 56: ...Samsung Electronics 11 3 4 HDMI 5 SERVO ...

Page 57: ...Samsung Electronics 12 1 This Document can not be used without Samsung s authorization 12 Schematic Diagram 1 1 MAIN PART1 ...

Page 58: ...12 2 Samsung Electronics This Document can not be used without Samsung s authorization 1 2 MAIN PART2 ...

Page 59: ...Samsung Electronics 12 3 This Document can not be used without Samsung s authorization 1 3 MAIN PART3 ...

Page 60: ...12 4 Samsung Electronics This Document can not be used without Samsung s authorization 1 4 MAIN PART4 ...

Page 61: ...Samsung Electronics 12 5 This Document can not be used without Samsung s authorization 2 FRONT ...

Page 62: ...12 6 Samsung Electronics This Document can not be used without Samsung s authorization 3 AMP ...

Page 63: ...Samsung Electronics 12 7 This Document can not be used without Samsung s authorization 4 SMPS ...

Page 64: ...12 8 Samsung Electronics This Document can not be used without Samsung s authorization 5 RF ...

Page 65: ...Samsung Electronics 13 1 13 Circuit Board Description ...

Page 66: ...13 2 Samsung Electronics ...

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