Samsung YP-T55, Service Manual

Page 1: ... Features PORTABLE DIGITAL AUDIO PLAYER Basic Model YP T55 Application YP T55ZW XET USER Model YP T55 MP3 WMA OGGPlayback Removable Storage Device Voice Recording Function FM Reception DNSe Surround Sound USB 2 0 High Speed Data Transfer Upgradable Firmware ...

Page 2: ...ELECTRONICS Samsung Electronics Co Ltd JAN 2006 Printed in Korea Code no AH68 01819A ...

Page 3: ...bleshooting 1 Power failure 6 1 2 No audio sounds 6 2 3 Cannot make a voice recording 6 3 4 Buttons do not work 6 4 5 Cannot download a file from the PC 6 5 Ch7 Exploded View Parts List 1 Total Exploded View 7 1 2 Parts List 7 2 Ch8 Electrical Parts List Electrical Parts List 8 1 Ch9 Block Diagram Block Diagram 9 1 Ch10 Wiring Diagram Wiring Diagram 10 1 Ch11 PCB Diagram 1 TOP 11 1 2 BOTTOM 11 1 C...

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: ... 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 which the device will be installed 9 Minimize body motions when handing...

Page 7: ...ground 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 Pick...

Page 8: ...high quality image Voice Recording Function You can make high quality voice recordings FM Reception Listening to an FM program is made easy with Auto Search and Frequency Memory functions DNSe Surround Sound The 3D surround feature adds spaciousness to the sound USB 2 0 High Speed Data Maximum data speed transfer of 25 Mbps Transfer Upgradable Firmware You can upgrade the built in programs when av...

Page 9: ...s File Max 2000 Folder Max 200 and folders 62 The product unit accompanying this user manual is licensed under certain intellectual property rights of certain third parties This license is limited to private non commercial use by end user consumers for licensed contents No rights are granted for commercial use The license does not cover any product unit other than this product unit and the license...

Page 10: ...Accessories Name Code No Samsung Electronics 2 3 3 Accessories AH30 00084D Earphones AH39 00731A USB Cable AH39 00768A Line In Cable ...

Page 11: ...k Strap USER USB Cable USER Move to Track Speed Search Lever Power On Off Play Pause Button Record User Button Navigation button Display MENU button Earphone Jack Volume Up Button Volume Down Button Hold Switch Battery Cover ENC USB Cable Connection Port Neck strap Hook I Display NOR 001 020 00 01 30 Playtime indicator EQ DNSe indicator Play Stop Pause indicator Remaining Battery Power indicator P...

Page 12: ...ically Voice recording does not work in FM mode or when the line in cable is connected Beeps are disabled while recording For voice recording the bit rate is fixed to 32Kbps Recording Voice Searching for Music Voice Files Turn the lever up or down during playback to search for the part you want to listen to Release the lever to resume play normally I To search for specific parts during play Turn t...

Page 13: ...dcast begins 2 Press the REC button again A file is created and the recording stops Files are recording in the order F001 F002 F003 and saved as MP3 files in FM_ENC folder Press and hold the NAVI button while listening to the FM radio to move to the FM_ENC folder N N N No o o ot t t te e e e Beeps are disabled while recording 00 01 30 001 001 FM REC Selecting the Playmode 1 Press the MENU button S...

Page 14: ...ks is displayed at the top of the screen I Tag I Bitrate Backlight 05 sec Contrast 05 Tag On Off Bitrate On Off Language Settings Press the MENU button Select Settings Language Use the lever to select the language for displaying menu Chinese S Chinese T English French German Hungarian Italian Japanese Korean Russian Spanish Use the lever to select the language for displaying Tag information Chines...

Page 15: ...n your PC may not function correctly 3 The USB driver is installed with a message saying that it is searching for a new device You may not see the display screen during installation Go to the device manager to check that installation has been successfully completed 4 Upon installation of the USB driver Samsung YP T55 USB Device will appear in the System Properties Device Manager I Connecting the p...

Page 16: ...Samsung Electronics 4 1 Samsung Electronics 4 Adjustments 1 How to recover the device YP T55 YP T55 ...

Page 17: ...4 2 Samsung Electronics YP T55 YP T55 ...

Page 18: ...4 3 Samsung Electronics 2 How to upgrade Firmware YP T55 YP T55 YP T55 YP T55 ...

Page 19: ...1 5 How to disassemble 1 Remove the 2 screws on the rear side of the player 2 Lift the HOLD S W up with pincet carefully 3 Remove the screw on the battery socket 4 Lift the battery socket up lightly Order Description Picture ...

Page 20: ...phone jack and pull out the PCB 6 Pull out the blue arrow part Push the red arrow part to the body And disassble the PCB from the Battery Case 7 Open the connector jack and disassble the LCD 8 Disassembly Complete Order Description Picture ...

Page 21: ...ttery and Check the power Upgrade Firmware Complete Check if C54 is 1 5V C55 is 3 0V Is the battery voltage Is the Clock signal Is the Recovery mode connected Replace IC8 STMP3520B Replace PCB Is the voltage in the battery pack Replace the battery Replace Battery connector ...

Page 22: ... Electronics 2 No audio sounds Is the earphone inserted properly Replace the Earphone Jack Replace the Earphone Is the same symptoms after replacement Does YEPP LOGO SONG play Does the SONG play after Jack repair ...

Page 23: ... change to REC Mode when you press the REC USER button Does Repeat Function operate when you press the REC USER button Complete Does the Recording file play normally Does the recording Time proceed Replace Switch Upgrade Firmware and Try Replace MIC and Recheck Redo soldering and recheck Is the MIC C1 R46 soldering normal ...

Page 24: ...do not work Does buttons work after replace Battery Upgrade Firmware and Format all data Is the HOLD switch set to OFF Is there odd material between button and knob Replace Switch Replace PCB Recheck the button after remove odd material ...

Page 25: ... Replace the PCB Does USB connection appear after RESET Is removable disk displayed in My computer Is it possible to access the data Install drivers and recheck Recheck Is it possible to upgrade Firmware to Recovery Mode Does the format pro ceed in the FINDER Does unknown device appear on the Device manager ...

Page 26: ...ew Parts List AW120 AS180 AK280 AS099 AC037 AH425 AK423 AK424 AK265 AC000 AK200 AC310 AS076 AB152 AK151 AH010 AH382 AS302 AH206 AC019 AC320 AS045 AC180 AB328 AB070 AR060 AS082 AA169 AA161 AA250 AA001 AA168 AA050 AA002 1 Total Exploded View ...

Page 27: ...3 01135A COVER USB YP T55 PC URETHANE 1 AH010 AH61 02101A HANGER NECKLACE YP T55 Zn 1 AH206 AH61 02102A HOLDER FF YP T55 POM 1 AH382 AH61 02103A HOLDER SPRING FF YP T55 POM 1 AH425 AH61 02104A HOLDER VOLUME YP T55 PC 1 AK200 AH64 03773A KNOB HOLD YP T55 ABS 1 AR060 AH73 00096A RUBBER LCD YP T55 SILICON 1 AS040 6003 001258 SCREW TAPTITE PH B M1 4 L2 0 NI PLT SW 1 AS040 6003 001320 SCREW TAPTITE CH ...

Page 28: ... R CHIP 100Kohm 5 1 16W TP 1005 R10 2007 000157 R CHIP 47Kohm 5 1 16W TP 1005 R12 2007 000148 R CHIP 10Kohm 5 1 16W TP 1005 R3 2007 000141 R CHIP 2 2Kohm 5 1 16W TP 1005 R31 2007 000138 R CHIP 100ohm 5 1 16W TP 1005 R32 2007 000143 R CHIP 4 7Kohm 5 1 16W TP 1005 R43 2007 000172 R CHIP 10ohm 5 1 16W TP 1005 R45 1405 001161 VARISTOR 14Vdc 2x1 25x0 55mm TP R46 2007 001329 R CHIP 7 5KOHM 5 1 16W TP 10...

Page 29: ...Samsung Electronics 9 1 9 Block Diagram ...

Page 30: ...Samsung Electronics 9 1 10 Wiring Diagram CON1 LCD FPCB CONNECTOR 17P Connector Reverse Insertion Protection as Mechanism ...

Page 31: ...e used without Samsung s authorization Samsung Electronics 11 PCB Diagram T TOP OP VIEW VIEW BO BOTT TTOM OM VIEW VIEW Pole Oscillator Power Stage Audio Output Audio Output Receiver Audio Output Connection Part Connection Part ...

Page 32: ...12 1 Samsung Electronics 12 Schematic Diagram 1 MAINµ This Document can be used without Samsung s authorization ...

Page 33: ...ng Electronics This Document can be used without Samsung s authorization 1 2 SELF TEST Manual Crystal Oscillator Clock Signal Battery Input Voltage MAIN IC Input Voltage MAIN IC Output Voltage Memory IC FM Module ...

Page 34: ...Samsung Electronics 12 3 Audio Output Waveform Battery Input Voltage MAIN IC Input Voltage ...

Page 35: ...ics 13 1 This Document can be used without Samsung s authorization 13 Circuit Description 1 Description of the Circuit 1 1 Main Blocks in the Circuit Diagram USB Connector Audio Output Power Part Voice Recording Module ...

Page 36: ...Recording Block Records Voice signal from Condencer Mic 5 LCD Block Displays Data from Micom IC 6 Flash Memory Block Inputs and Outputs data to and from the Micom IC 7 KEY Interface Block Provides input signal from TACT S W 4 and LEVER S W 1 to the Micom IC 8 Power Block Receives the battery voltage and supplies the voltage to the DC convertor 9 Main IC STMP3520B Block the operation circuit for Ma...

Page 37: ...sion to audio format Compression rate indicated in bps bit per second For MP3 sound quality of CD level with compression rate of 128kbps ENCODING FORMAT MP3 MPEG Layer3 AAC MPEG 2 AAC WMA Windows Media Audio Microsoft ATRAC 3 Adaptive TRansform Acoustic Coding SONY EPAC Enhanced Perceptual Audio Coder Luscent Technology OGG Ogg Vorbis DECODING Process of recovering the digital data encoded to the ...

Page 38: ...14 2 Samsung Electronics Yepp Block Diagram ...

Page 39: ... or deleted Smart Media Card Compact and light semiconductor media card in dimension of 45 1 x 37 1 x 0 76mm and weight of 2 0g It is used as a storage of portable device and high quality media storage device of digital camera and music MP3 player Flash memory is embedded to store the data even if the power is turned off and it is a super high speed product that can record up to 250 characters per...

Page 40: ... drive Music file downloaded from digi tal contents music service site with SecuMAX can be played back Yepp Explorer This software controls yepp player in PC You can move or delete music list or voice saved in yepp card or embedded memory This software is required to use yepp Music Drive Software audio player for PC embedded with MPEG II AAC Decoder first in Korea It supports not only playback of ...

Page 41: ...G 1 in 1988 It is the technology used to produce video CD MP3 means the audio compression part among specification of MPEG 1 1995 MPEG 2 is used together with MPEG 1 AAC Advanced Audio Coding or MP4 receives attention with its excellent digital audio and is derived from MPEG 2 MPEG 4 lastests standard on movie compres sion for conference communication is being established MP3 is most widely used a...

Page 42: ... this data In a same quality as MP3 it is about 1 2 size and contains Windows Media Rights Manager with copyright protection technology It can be played back with Media Player provided in Windows98 ATRAC3 Sound compression type of MD and latest specification of ATRAC Adaptive TRansform Acoustic Coding developed by SONY Has about 2 compression rate than existing ATRAC Real Audio G2 Format type deve...

Page 43: ...c CD or cassette tape containing sound people cannot listen When it is made into MP3 it is as shown in Fig 2 Volume Control Capacity can be reduced much by adjusting the degree of loss However it causes deterioration of sound qual ity Music CD contains sound made with 16 bit 44 1KHz of stereo sampling Stereo is the type of divid ing the sound into left and right CD should change analog sound to di...

Page 44: ...e of Ogg Vorbis is that it has no limit in use of format itself The biggest feature that distinguishes Ogg Vorbis from existing music file is that it supports VBR Variable Bit Rate by default Of course MP3 also supports VBR format but has effect of reducing capacity due to VBR based on existing MP3 Ogg Vorbis file supports VBR by default and helps you enjoy high quality music with out loss due to ...

Page 45: ...orages currently used Optical Disc CD MD Player Flash Memory MP3 Player Digital audio player Type of Digital audio player storage Audio Format Table SSFDC Solid State Floppy Disc Card File System Standard file system for support of SMC s compatibility DOS FAT adopted 1 4 Type of Storage ...

Page 46: ...14 10 Samsung Electronics Small Form factor Cards Comparison ...

Page 47: ... of persons related to copyright that occurs due to use of digital contents protected from illegal use of digital contents through various channels WaterMarking Technology of inserting the specific data to claim copyright of multimedia contents so that eyes and ears of human cannot be distinguished SecuMAX Digital Security Total Solution adopting Snake encoding algorithm Version1 0 contents in ser...

Page 48: ...ndard using SecuMAX and completed development of SecuMAX 2 0 with world compatibility SecuMAX SecuMAX is the reproduction prevention system that is made for protection of copyright in rapidly growing distribution of digital contents Reopening of MP3 Music Service Digital contents copyright protection and management service Fundamentally prevent the illegal distribution Only legal users can play ba...