Samsung YH-J70 Service Manual Download

Page: 1 / 54

PORTABLE DIGITAL AUDIO PLAYER

Basic Model :

YH-J70

PORTABLE DIGITAL AUDIO PLAYER

- Confidential -

SERVICE

Manual

Features

- Mass Storage Device Support

- MP3, WMA, Audio ASF and Ogg Playback

- USB Host Function Support

- Video Playback Function

- Image & Text Viewer Function

- Direct MP3 Recording

- USB 2.0 High Speed Data Transfer

- SRS WOW Surround Sound

- 1.8-inch Color TFT LCD

- Various Games Support

- Built-in Rechargeable Li-ion Battery

- Playback Speed Control Function

- Upgradable

Model : YH-J70

* Application : YH-J70SB/SW[20GB]

YH-J70LB/LW[30GB]

Summary of Contents for YH-J70

Page 1: ...ASF and Ogg Playback USB Host Function Support Video Playback Function Image Text Viewer Function Direct MP3 Recording USB 2 0 High Speed Data Transfer SRS WOW Surround Sound 1 8 inch Color TFT LCD Various Games Support Built in Rechargeable Li ion Battery Playback Speed Control Function Upgradable Model YH J70 Application YH J70SB SW 20GB YH J70LB LW 30GB ...

Page 2: ...ELECTRONICS Samsung Electronics Co Ltd AUG 2005 Printed in Korea Code no AH68 01654S YH J70SB SW 20GB YH J70LB LW 30GB ...

Page 3: ... No Sound can be heard 6 2 3 Recording Failure Line IN 6 3 4 Recording Failure Audio 6 4 5 The buttons does not works 6 5 6 WhenyoucannotconnecttheplayertothePC 6 6 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 MAIN 11 1 2 SUB ...

Page 4: ...oduct that is apt to be awry Take care disassembly or reassembly 5 Repair being far away because it can receive effect by TV or magnet 6 Put in safe place lest shock of data recorded to HDD should be passed after separation in substance because data is weak in shock 7 Since the data on the HDD is weak to mechanical shock place the HDD in a safe location that is free from mechanical shock once it i...

Page 5: ...or 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 The cur...

Page 6: ...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 7: ... 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 8: ...ion You can view JPEG files and TXT file texts Image files edited with Multimedia Studio can be viewed as slide shows Direct MP3 Recording You can convert music from CDs cassettes and radio into MP3 files without a PC USB 2 0 High Speed Data The 3D surround SRS feature adds spaciousness to the sound Transfer SRS WOW Surround Sound 1 8 inch Color TFT LCD You can enjoy high quality image video files...

Page 9: ...nse does not cover any product unit other than this product unit and the license does not extend to any unlicensed product unit or process conforming to ISO IEC 11172 3 or ISO IEC 13818 3 used or sold in combination with this product unit The license only covers the use of this product unit to encode and or decode audio files conforming to the ISO IEC 11172 3 or ISO IEC 13818 3 No rights are grant...

Page 10: ...Accessories Name Code No Samsung Electronics 2 3 3 Accessories AH30 00069D Earphones AH39 00488B Line In Cable AH39 00783A USB Cable AH39 00784A USB Host Adaptor AH44 00100C Charger ...

Page 11: ... Installation CD Docking Cradle Remocon Model Built in memory YH J70 SB SW 20GB YH J70 LB LW 30GB Play Stop Pause Indicator Volume Indicator Play Time Indicator Play Mode Indicator EQ SRS Indicator Battery remaining indicator Alarm Setting Indicator Song number display Current Track Title Progress Indicator Location of Controls Loop Repeat Record button HOLD switch MENU button Display Earphone Jac...

Page 12: ...ile When playing a VBR file you cannot move to and play the previous track even if you press the button within 5 seconds after playback starts Files that were downloaded in MP2 or MP1 and had their file extension changed to MP3 may not play Press and hold the button during playback to search for the part you want to listen to Release the button to resume play normally I To Search for Specific Part...

Page 13: ... at random All To play files at random I Play Mode 1 Press the TOOL button while the music is playing or has stopped Music Tool screen appears 2 Press the SELECT button after moving to File Info Information on file currently playing paused is displayed I File Info Blue Title Artist Album Genres File Size Sky Best Dance 7782656 bytes Add to Favorites Music Tool EQ SRS Play Mode File Info Repeat Shu...

Page 14: ...ect a saved preset number to be deleted The selected preset number will be deleted I Edit Preset 1 Press the TOOL button in FM Mode FM Tool Screen appears 2 Press the SELECT button after moving to Auto Preset Frequencies are automatically stored up to 30 I Auto Preset Mono Stereo FM Tool Preset Mode Edit Preset Auto Preset Delete Save Mono Stereo FM Tool Preset Mode Edit Preset Auto Preset Preset ...

Page 15: ...e player or PC Playlist transmitted through yepp Studio 2 Select the file or folder that you want to play To move to a higher level folder To move to a lower level folder To move to a file or folder in the same directory SELECT To move to the next folder down 3 Press the SELECT button The selected file will be played You can move and select using the SELECT button Press the button to display the p...

Page 16: ...llow the instructions in the window to complete the installation Viewing Text Door txt Identity txt The Little Prince txt TEXT The Little Prince 0011 0102 Once when I was six years old I saw a mag nificent picture in a book called True Stories from Nature about the primeval for 1 Press the MENU button to move to menu and then select Text Navigation screen appears 2 Move to the text you want to rea...

Page 17: ...sung YH J70 USB Device will appear in the Device Manager 5 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 successful ly completed I Connecting the player to your PC with a USB cable PC PC USB Cable USB Cable Player Player How to check if USB d...

Page 18: ...models YH J70 has self recovery system that saves system files in Flash memory to prevent corruption In addition firmware is automatically upgraded on line 1 System Fail Need Firmware Upgrade appears on the LCD screen This message appears when the font file in the hard disk drives has been corrupted Countermeasure 1 Connect the player and the computer with the USB cable and copy J70 fnt file to th...

Page 19: ...4 2 Samsung Electronics If the same message appears even after you have copied the font file upgrade the firmware 2 Copy the firmware upgrade file j70_32 bin to the root directory of the hard disk drive ...

Page 20: ...assemble 1 Remove 2 screws from the rear panel of the player 2 Lightly lift and slide the front part of the ASSY BOTTOM so that the hook comes out 3 If the hook comes out it easily opens 4 Separate the hard disk Order Description Picture ...

Page 21: ...om the Main PCB 7 Lightly lift and slide the front part of the ASSY TOP so that the hook comes out 8 Pull out and separate the Battery Pack Wire with your hand 9 Pull back the Front Key Connector 4P in the direction of the arrow and separate the Front Order Description Picture ...

Page 22: ...onics 5 3 10 Picture after disassembly 11 Slide the Deco Side in the direction of the arrow to sep arate it 12 Remove the screws on the side of the Bracket Frame 13 Picture after disassembly Order Description Picture ...

Page 23: ...Samsung Electronics 6 1 6 Troubleshooting 1 It keeps being turned off ...

Page 24: ...6 2 Samsung Electronics 2 No Sound can be heard ...

Page 25: ...Samsung Electronics 6 3 3 Recording Failure Line IN ...

Page 26: ...6 4 Samsung Electronics 4 Recording Failure Audio ...

Page 27: ...Samsung Electronics 6 5 5 The buttons does not works ...

Page 28: ...6 6 Samsung Electronics 6 When you cannot connect the player to the PC ...

Page 29: ... List Battery HDD FPC HDD PCB AB153 AB250 AB335 AC000 AC010 AC020 AC065 AC080 AC300 AC324 AC357 AD358 AH264 AK200 AK240 AK290 AK300 AK315 AK327 AK335 AW120 AS161 AA005 AA055 AA130 AS100 PCB HDD CONNECTOR FPC FRONT AS066 AS079 1 Total Exploded View ...

Page 30: ...BACK PC WHITE 1 YH J70LW AH64 03433C CABINET FRONT N PC BLACK YH J70SB LB AH64 03433D CABINET FRONT N PC WHITE YH J70SW LW AC020 AH64 03431A CABINET BOTTOM PC WHITE AC065 AH64 03436A CABINET SIDE Silver Spray 1 AC080 AH64 03437A CABINET TOP PC 1 AH63 01032A COVER SCREW SILICON 70 2 YH J70SB LB AH63 01032B COVER SCREW SILICON 70 2 YH J70SW LW AC324 AH63 01007A SHEET BACK PORON t1 0 3M t0 05 2 AC357...

Page 31: ...KIP ABS PC 1 YH J70SB LB AH64 03626B KNOB SKIP ABS PC 1 YH J70SW LW AS066 AH63 01029A SHEET CONDUCTIVE NI SHEET 3 SNA AS074 AH63 01028A SHEET EMI PET 0 03T 1 SNA AS079 AH63 01039A SHEET FRAME B NITRO 31CT 1 SNA AS161 AH63 01035A SHEET USB NITRO 31CT 1 AW120 AH64 03617A WINDOW LCD A CNC ACRYL t2 0 1 A 6003 001258 SCREW TAPTITE M1 4 2 9 B 6003 001479 SCREW TAPTITE M1 7 4 4 C 6003 001143 SCREW TAPTIT...

Page 32: ...003726 IC DC DC CONVERTER XC9216A12CMR SOT 25 5 IC801 0909 001041 IC REAL TIME CLOCK RX 8564LC 8Bit VSOJ 1 IC802 1209 001596 IC SENSOR MMA7260QR2 QFN 16P 6x6mm PLAST JACK5 3722 002300 JACK PHONE 11P AU KR1 2007 001319 R CHIP 1 2KOHM 5 1 16W TP 1005 KR2 2007 001320 R CHIP 1 8KOHM 5 1 16W TP 1005 L401 2704 000005 INDUCTOR SMD ARRAY 90OHM 50V 370MA 0 3 L506 2703 000275 INDUCTOR SMD 33UH 10 2012 L601 ...

Page 33: ...Samsung Electronics 9 1 9 Block Diagram ...

Page 34: ...Samsung Electronics 10 1 10 Wiring Diagram HDD BATTERY TFT LCD USB JACK ...

Page 35: ...11 1 This Document can be used without Samsung s authorization Samsung Electronics 11 PCB Diagram 1 MAIN ...

Page 36: ...11 2 Samsung Electronics This Document can be used without Samsung s authorization 2 SUB ...

Page 37: ...12 1 This Document can be used without Samsung s authorization Samsung Electronics 12 Schematic Diagram 1 MAINµ ...

Page 38: ...12 2 Samsung Electronics This Document can be used without Samsung s authorization 1 2 SELF TEST Manual ...

Page 39: ...Samsung Electronics 12 3 ...

Page 40: ...12 4 Samsung Electronics TABLE 1 See Table 1 See Table 1 ...

Page 41: ...Samsung Electronics 12 5 ...

Page 42: ...13 1 This Document can be used without Samsung s authorization Samsung Electronics 13 Circuit Description 1 Description of the Circuit 1 1 Main Blocks in the Circuit Diagram 1 2 Main Functions by Block ...

Page 43: ...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 44: ...14 2 Samsung Electronics Yepp Block Diagram ...

Page 45: ... 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 46: ... 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 47: ...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 48: ... 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 49: ...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 50: ...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 51: ...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 52: ...14 10 Samsung Electronics Small Form factor Cards Comparison ...

Page 53: ... 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 54: ...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...

Search results

Summary of Contents for YH-J70

Reviews:

Related manuals for YH-J70

Brands by name

Popular brands

Samsung YH-J70, Service Manual

Search results

Summary of Contents for YH-J70

Reviews:

Related manuals for YH-J70

Brands by name

Popular brands