Samsung YH-J70 Service Manual

Portable digital audio player

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Owner's manual (46 pages)

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Page 1 PORTABLE DIGITAL AUDIO PLAYER Basic Model : YH-J70 * Application : YH-J70SB/SW[20GB] YH-J70LB/LW[30GB] SERVICE Manual PORTABLE DIGITAL AUDIO PLAYER Features - Mass Storage Device Support - MP3, WMA, Audio ASF and Ogg Playback - USB Host Function Support - Video Playback Function - Image &...
Page 3: Table Of Contents
INDEX Exploded View & Parts List Precautions 1. Total Exploded View 2. Parts List 0. HDD SVC Repair Caution 1-1. Safety Precautions 1-2. Servicing Precautions Electrical Parts List 1-3. Precautions for Electrostatically Electrical Parts List Sensitive Device (ESDs) Block Diagram Block Diagram Product Descriptions 1.
Page 4: Hdd Svc Repair Caution
HDD near any electrical appliance that generates a strong magnetic field. Be backed up before repair to keep data recorded to HDD. * Hard-Disk-PCB connection Precaution * HDD connection of MAIN PCB TOP side, with picture, must assemble so that the label may come on “ CAUTION”. CAUTION Samsung Electronics...
Page 5: Safety Precautions
Examples: Handle brackets, Metal Part metal cabinets, screwheads and control shafts. The current measured should not Ohmmeter exceed 0.5 milliamp. Reverse the power- plug prongs in the AC outlet and repeat. Fig. 1-2 Insulation Resistance Test Samsung Electronics...
Page 6: Servicing Precautions
Make sure that the 8. Always connect a test instrument's ground portion around the serviced part has not lead to the instrument chassis ground been damaged. before connecting the positive lead; always remove the instrument's ground lead last. Samsung Electronics...
Page 7 SCAN : Manufactured for Scandinavian KATSO SATEESEEN! Market. VARNING: OSYNLIG LASERSTRÅLNING NAR DENNA DEL AR OPPNAD OCH SPARREN AR URKOPPLAD BETRAKTA EJSTRÅLEN! Fig. 1-4 Warning Labels (Location: Disc Clamper, Inner Side of Unit Door or Nearby Unit Chassis Samsung Electronics...
Page 8: Product Feature
7 hours of video files. (According to company measurement) Playback Speed Control You can adjust the playback speed of music or voice files. Function Upgradable You can upgrade the built-in programs when available. Please check the home page (www.samsung.com) for upgrades. Samsung Electronics...
Page 9: Specifications
ISO/IEC 11172-3 or ISO/IEC 13818-3. No rights are granted under this license for product features or functions that do not conform to the ISO/IEC 11172-3 or ISO/IEC 13818-3. Samsung Electronics...
Page 10: Accessories
3. Accessories Accessories Name Code No. AH44-00100C Charger AH30-00069D Earphones AH39-00488B Line-In Cable AH39-00783A USB Cable AH39-00784A USB Host Adaptor Samsung Electronics...
Page 11: Basic Functions
User Manual USB Host Adaptor Charger Installation CD Docking Cradle Model YH-J70 SB/SW YH-J70 LB/LW Built-in memory 20GB 30GB The capacity of the useable built-in memory is less than indicated as the internal firmware uses a part of the memory as well.
Page 12: Playing Music
Ending Point Press the A B button shortly at the point you wish to end Loop Repeat. A B appears in the display. The loop is played repeatedly. Press the A B button briefly to cancel the loop. Samsung Electronics...
Page 13: New Functions
Automatic Search: Press and hold the buttons to automatically search for Music Tool screen appears. Dance Genres receiving frequencies. 7782656 bytes File Size Press the SELECT button after moving to [File Info.]. Information on file currently playing/paused is displayed. Samsung Electronics...
Page 14: Recording Voice
The selected preset number will be deleted. -REC:Start -TOOL:Exit F001.mp3 Auto Preset Press the TOOL button in FM Mode. FM Tool Screen appears. Press the SELECT button after moving to [Auto Preset]. Frequencies are automatically stored up to 30. Samsung Electronics...
Page 15: Recording Mp3S
Press the SELECT button. The selected file will be played. Navigation - Tool Go to Top Delete File Navigation File Search File Search MUSIC Music Library PHOTO Playlist RECORDED TEXT VIDEO MUSIC Sexy boms.mp3 blue.mp3 Ill be there for you.mp3 Samsung Electronics...
Page 16: Pc Connection
: Move to Previous/Next Page. - Text File Selection: Press and hold the SELECT button to move to navigation Install Samsung Media Studio prior before connecting the player to PC. during a music is playing. Move to the desired text file, and Installing Software then press the SELECT button.
Page 17: Connecting The Player To Your Pc With A Usb Cable
You may not see the display screen during installation. Go to the device manager to check that installation has been successful- ly completed. Upon installation of the USB driver "Samsung YH-J70 USB Device" will appear in the [Device Manager]. Player...
Page 18: How To Recover The Device
1.How to recover the device hen file download does not work or screen display is abnormal, the following recovery procedure is valid for YH-J70, YH-J50, YH-J40 and their derived models. YH-J70 has self-recovery system that saves system files in Flash memory to prevent corruption.
Page 19 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. Samsung Electronics...
Page 20 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. Samsung Electronics...
Page 21 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 Samsung Electronics...
Page 22 Order(Description) Picture 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 Samsung Electronics...
Page 23: It Keeps Being Turned Off
6. Troubleshooting 1. It keeps being turned off Samsung Electronics...
Page 24: No Sound Can Be Heard
2. No Sound can be heard Samsung Electronics...
Page 25: Recording Failure (Line In
3. Recording Failure (Line IN) Samsung Electronics...
Page 26: Recording Failure (Audio
4. Recording Failure (Audio) Samsung Electronics...
Page 27: The Buttons Does Not Works
5. The buttons does not works Samsung Electronics...
Page 28: When You Cannot Connect The Player To The Pc
6. When you cannot connect the player to the PC Samsung Electronics...
Page 29 7.Exploded View & Parts List 1. Total Exploded View AS100 AA130 AC010 AK240 AK290 CONNECTOR-FPC AK335 FRONT AW120 AD358 AC357 AC080 AB335 AB153 AS079 AK300 AS161 AC065 AA055 AC020 AK200 AK327 FPC-HDD AB250 Battery AH264 PCB-HDD AS066 AC324 AA005 AK315 AC000 AC300 Samsung Electronics...
Page 30: Parts List
CUSHION-LCD PORON t0.5 + 3M t0.05 AD358 AH64-03446A DECO STRAP Zn, PLATING AH264 AH61-01932A HOLDER-HDD ELASTOMER (TRIEL 5302) AK200 AH64-03441A KNOB-HOLD AH64-03620A KNOB-MENU YH-J70SB/LB AK240 AH64-03620B KNOB-MENU YH-J70SW/LW AH64-03619A KNOB-POWER YH-J70SB/LB AK290 AH64-03619B KNOB-POWER YH-J70SW/LW AK300 AH64-03443A KNOB-REC Samsung Electronics...
Page 31 AH63-01029A SHEET-CONDUCTIVE NI-SHEET AS074 AH63-01028A SHEET-EMI PET(0.03T) AS079 AH63-01039A SHEET-FRAME B NITRO 31CT AS100 AH63-01026A SHEET-LCD 3M T0.05 AS161 AH63-01035A SHEET-USB NITRO 31CT AW120 AH64-03617A WINDOW-LCD(A) CNC ACRYL (t2.0) 6003-001258 SCREW-TAPTITE M1.4*2 6003-001479 SCREW-TAPTITE M1.7*4 6003-001143 SCREW-TAPTITE M1.7*6 Samsung Electronicsπ...
Page 32: Electrical Parts List
SHEET-LCD SIDE;YH-J70,-,-,28,3,-,- C615 2203-000236 C-CER,CHIP;0.1nF,5%,50V,C0G,1608 AH69-01519A CUSHION-CON.HDD;YH-J70,PORON,t0.5,5,20,- C617 2203-002793 C-CER,CHIP;1000nF,+80-20%,25V,Y5V,2012 4302-001186 BATTERY-LI(2ND);3.7V,970mAH,-,190mA,4.2V C627 2404-001348 C-TA,CHIP;100uF,##20%,6.3V,-,TP,3.2X1.6X AH07-00163A LCD;LCD MODULE,YH-J70,-,40 x 47.6 C632 2203-006818 C-CER,CHIP;47000nF,20%,6.3V,X5R,3216 AH30-00084D PHONE-EAR(EP-360);WHITE,EP-360,16ohm,NOR CON-H 3708-002076 CONNECTOR-FPC/FFC/PIC;51P,0.3mm,SMD-A,SN AH39-00488B CBF CABLE-STEREO CORD;YD-11034 ,YP-60,3P CON-H 3711-005881 HEADER-BOARD TO CABLE;NOWALL,50P,2R,1.27 AH39-00783A CBF CABLE FORM-USB;49217-1001,YH-J70,2,1...
Page 33 9. Block Diagram Samsung Electronics...
Page 34: Wiring Diagram
10. Wiring Diagram JACK TFT LCD BATTERY 10-1 Samsung Electronics...
Page 35 - This Document can be used without Samsung’s authorization - 11. PCB Diagram 1. MAIN Samsung Electronics 11-1...
Page 36 2. SUB - This Document can be used without Samsung’s authorization - 11-2 Samsung Electronics...
Page 37 - This Document can be used without Samsung’s authorization - 12. Schematic Diagram µ 1. MAIN Samsung Electronics 12-1...
Page 38 - This Document can be used without Samsung’s authorization - 1-2. SELF-TEST Manual 12-2 Samsung Electronics...
Page 39 Samsung Electronics 12-3...
Page 40 TABLE 1 See Table 1 See Table 1 12-4 Samsung Electronics...
Page 41 Samsung Electronics 12-5...
Page 42 - This Document can be used without Samsung’s authorization - 13. Circuit Description 1. Description of the Circuit 1-2.Main Functions by Block 1-1. Main Blocks in the Circuit Diagram 13-1 Samsung Electronics...
Page 43 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 data before encoding D/A : Process of converting Digital Data to Analog Data Samsung Electronics 14-1...
Page 44 Yepp Block Diagram 14-2 Samsung Electronics...
Page 45 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 second.(mass production of 8MB, 16MB, 32MB currently at Samsung Electronics) OTP (Once Time Programmable) OTP is one type of micro controller(MCU) and is the customer-oriented semi-conductor on which the customers can directly record the program.
Page 46 SecuMAX server and utilized as a basic data for performing user certification role. After registration, download the dedicated player and decryption key to use service. Music drive developed by Samsung Electronics is embedded with SecuMAX decryption module. Decryption key will be registered during installation of music drive. Music file downloaded from digi- tal contents music service site with SecuMAX can be played back.
Page 47 Layer-2. In general, it is called MP3 since Layer-1 has compression rate of 1:4, Layer-2 of 1:61:8, Layer-3 of 1:101:12. Using MP3 technology, up to 100 songs(7 hours) can be contained in one copy of empty CD of 650MB. Transition of Portable Player Samsung Electronics 14-5...
Page 48 16Kbps-32Kbps using [RealAUDIO G2 Music Codec] as com- pression type. Since streaming play in Internet radio is the main purpose, file does not contain copyright protection technology. “Real Player G2” supports MP3 play- back and “Real Juke Box” supports encoding from CD to MP3. 14-6 Samsung Electronics...
Page 49 There is no difference in sound quality between MP3 and CD since encoding(converting CD track to MP3) is done with 44.1KHz at 16 bit. Better CD sound quality cannot be obtained by lower- ing the sampling rate, but the capacity can be reduced. Samsung Electronics 14-7...
Page 50 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 big width of bit rate. 14-8 Samsung Electronics...
Page 51 / 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) Samsung Electronics 14-9...
Page 52 Small Form - factor Cards Comparison 14-10 Samsung Electronics...
Page 53 However, as online MP3 sales have resolved, the number of legal Internet site has increased. However, reproduction prevention system is required for legal sales. All Internet sites serving Korean song in MP3 are introducing reproduction prevention system. Samsung Electronics 14-11...
Page 54 Meaning of SecuMAX System Application Most legal Internet MP3 service sites adopt SecuMAX and YEPP of Samsung and several compa- nies have hardware supporting SecuMAX among MP3 players currently distributed. Then, user needs to receive MP3 applied with SecuMAX to receive legal service. It is required to have program that can play back MP3 applied with SecuMAX technology in MP3 player.

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