Samsung yePP YV-120V Service manual

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 & 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
Model : YH-J70
- Upgradable
- Confidential -
YH-J70SB/SW[20GB]
YH-J70LB/LW[30GB]
ELECTRONICS
© Samsung Electronics Co.,Ltd. AUG. 2005
Printed in Korea
Code no. AH68-01654S
INDEX
Ch1
Ch7
Precautions
0. HDD SVC Repair Caution
1-1
1-1. Safety Precautions
1-2. Servicing Precautions
1-3. Precautions for Electrostatically
Sensitive Device (ESDs)
1-2
1-3
1-4
Exploded View & Parts List
1. Total Exploded View
2. Parts List
Ch8
Electrical Parts List
Electrical Parts List
Ch9
Ch6
3-1
3-3
3-6
4-1
5-1
Troubleshooting
1. It keeps being turned off
2. No Sound can be heard
3. Recording Failure (Line IN)
4. Recording Failure (Audio)
5. The buttons does not works
6. When you cannot connect the player to the PC
6-1
6-2
6-3
6-4
6-5
6-6
Wiring Diagram
Wiring Diagram
10-1
PCB Diagram
1. MAIN
11-1
2. SUB
11-2
Ch12
How to disassemble
How to disassemble
Ch10
Ch11
Adjustments
1.How to recover the device
Ch5
2-1
2-2
2-3
Product Functions
1. Basic Functions
2. New Functions
3. PC Connection
Ch4
9-1
Product Descriptions
1. Product Feature
2. Specifications
3. Accessories
Ch3
8-1
Block Diagram
Block Diagram
Ch2
7-1
7-2
Schematic Diagram
1. MAIN
12-1
2. SELF-TEST Manual
12-2
Ch13
Circuit Description
Circuit Board Description
Ch14
13-1
Basic Information of MP3
1. Operating Principle of yepp
14-1
2. MP3 Overview
14-5
3. Understanding of Digital Audio Format
14-6
4. Type of Storage
14-9
5. Copyright
14-11
1. Precautions
0. HDD SVC Repair Cautions
1. At HDD reassembly, connect for direction decided to PCB connector necessarily.
When connect headlong, hard-disk is damaged.
refer below “ Hard-disk - PCB connector connection Precation”.
2.HDD is very sensitive in static electricity, therefore refer static electricity prevention countermeasure
(PAGE2~4) necessarily.
3.Hard-disk is very frail in shock.
Do attention in treatment so that there may no be external shock(specially, Droping).
4.connector pin are product 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 is removed from the main unit.
8.In order to safe keep the data on the HDD, back up the data before the repair or make sure not to place
the 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
1-1
Samsung Electronics
1-1 Safety Precautions
Follow these safety, servicing and ESD precautions to prevent damage and protect against potential hazards such as electrical shock and X-rays.
1. Be sure that all of the built-in protective
devices are replaced.
2. When reinstalling the chassis and its
assemblies, be sure to restore all protective
devices, including control knobs and
compartment covers.
3. Make sure that there are no cabinet
openings through which people-particularly children--might insert fingers
and contact dangerous voltages. Such
openings include the spacing between the
picture tube and the cabinet mask,
excessively wide cabinet ventilation slots,
and improperly fitted back covers.
4. Design Alteration Warning:
Never alter or add to the mechanical or
electrical design of the unit. Example: Do
not add auxiliary audio or video connectors.
Such alterations might create a safety hazard. Also, any design changes or additions
will void the manufacturer's warranty.
5. Leakage Current Hot Check (Figure 1-1):
Warning: Do not use an isolation
transformer during this test. Use a leakage-current tester or a metering system
that complies with American National
Standards Institute (ANSI C101.1, Leakage
Current 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. The current measured should not
exceed 0.5 milliamp. Reverse the powerplug prongs in the AC outlet and repeat.
(Reading should
not be above
0.5mA)
Device
Under
Test
Leakage
Currant
Tester
Test all
exposed metal
surfaces
2-Wire Cord
Also test with
plug reversed
(using AC adapter
plug as required)
Earth
Ground
Fig. 1-1 AC Leakage Test
6. Insulation Resistance Cold Check:
(1) With the unit's AC plug disconnected
from the AC source, connect an electrical
jumper across the two AC prongs. (2) Set
the power switch to ON. (3) Measure the
resistance between the shorted AC plug and
any exposed metallic parts. Example:
Screwheads, antenna, control shafts or
handle brackets.
If any of the exposed metallic parts has a
return path to the chassis, the measured
resistance should be between 1 and 5.2
megohms. If there is no return path, the
measured resistance should be "infinite." If
the resistance is outside these limits, a
shock hazard might exist. See Figure 1-2
Antenna
Terminal
Exposed
Metal Part
ohm
Ohmmeter
Fig. 1-2 Insulation Resistance Test
Samsung Electronics
1-1
Precautions
1-1 Safety Precautions (Continued)
7. Components, parts and wiring that appear
to have overheated or that are otherwise
damaged should be replaced with parts
that meet the original specifications.
Always determine the cause of damage or
overheating, and correct any potential
hazards
8. Observe the original lead dress, especially
near the following areas: Antenna
wiring, sharp edges, and especially the
AC and high voltage power supplies.
Always inspect for pinched, out-of-place,
or frayed wiring. Do not change the
spacing between components and the
printed circuit board. Check the AC
power cord for damage. Make sure that
no wires or components touch thermally
hot parts.
9. Product Safety Notice:
Some electrical and mechanical parts
have special safety-related characteristics
which might not be obvious from visual
inspection. These safety features and the
protection they give might be lost if the
replacement component differs from the
original--even if the replacement is rated
for higher voltage, wattage, etc.
10 Components that are critical for safety are
indicated in the circuit diagram by
shading,
or
. Use replacement
components that have the same ratings,
especially for flame resistance and
dielectric strength specifications. A
replacement part that does not have the
same safety characteristics as the original
might create shock, fire or other hazards.
1-2 Servicing Precautions
Warning1: First read the "Safety Precautions" section of this manual. If some unforeseen circumstance
creates a conflict between the servicing and safety precautions, always follow the safety precautions.
1. Servicing precautions are printed on the
cabinet. Follow them.
2. Always unplug 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
prevent contact with thermally hot
components. Reinstall all such elements to
their original position.
4. After servicing, always check that the
screws, components and wiring have been
correctly reinstalled. Make sure that the
portion around the serviced part has not
been damaged.
1-2
5. Check the insulation between the blades of
the AC plug and accessible conductive parts
(examples: metal panels, input terminals
and earphone jacks).
6. Insulation Checking Procedure: Disconnect
the power cord from the AC source and
turn the power switch ON. Connect an
insulation resistance meter (500V) to the
blades of the AC plug.
The insulation resistance between each
blade of the AC plug and accessible
conductive parts (see above) should be
greater than 1 megohm.
7. Never defeat any of the B+ voltage
interlocks. Do not apply AC power to the
unit (or any of its assemblies) unless all
solid-state heat sinks are correctly installed.
8. Always connect a test instrument's ground
lead to the instrument chassis ground
before connecting the positive lead; always
remove the instrument's ground lead last.
Samsung Electronics
Precautions
1-3 Precautions for Electrostatically Sensitive Devices (ESDs)
5. Use only a grounded-tip soldering iron
when soldering or unsoldering ESDs.
1. Some semiconductor ("solid state") devices
are easily damaged by static electricity.
Such components are called Electrostatically
Sensitive Devices (ESDs). Examples
include integrated circuits and some fieldeffect
transistors. The following techniques will
reduce the occurrence of component
damage caused by static electricity.
6. Use only an anti-static solder removal
device. Many solder removal devices are
not rated as "anti-static" (these can
accumulate sufficient electrical charge to
damage ESDs).
7. Do not 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.
2. Immediately before handling any
semiconductor components or assemblies,
drain the electrostatic charge from your
body by touching a known earth ground.
Alternatively, wear a discharging
wrist-strap device. (Be sure to remove it
prior to applying power--this is an electric
shock precaution.)
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.
3. After removing an ESD-equipped assembly,
place it on a conductive surface such as
aluminum foil to prevent accumulation of
electrostatic charge.
9. Minimize body motions when handing
unpackaged replacement ESDs. Motions
such as brushing clothes together, or lifting
a foot from a carpeted floor can generate
enough static electricity to damage an ESD.
4. Do not use freon-propelled chemicals.
These can generate electrical charges that
damage ESDs.
1-4 Special Precautions and Warning Labels for Laser Products
(UL)
(CSA)
This Product Complies with
DHHS Rules 21CFR, Sub
chapter J.At date of Manufacture
(UL,CSA,EU)
CERTIFIED ONLY TO CANADIAN
ELECTRICAL CODE.
CLASS 1
LASER PRODUCT
CERTIFIE EN VERTU DU CODE
CANADIAN DE LELETRICITE
SEULEMENT
Fig. 1-3 Warning Labels (Location: Enclosure Block)
(UL,CSA,SCAN)
CAUTION : INVISIBLE LASER RADIATION WHEN OPEN
AND INTERLOCKS DEFEATEO AVOIDEXPOSURE TO BEAM
ADVARSEL: USYNLIG LASERSTRÅLING VED ABNING
NÅR SIKKERHEDSAFBRYDERE ER UDE AF FUNKTION
UNDGA UDSAETTELSE FOR STRALING
VARO:AVATTAESSA JA SUOJALUKITUS OHITETTAESSA
OLET ALTTINA NAKYMATTÖMALLE LASERSATEILYLLE ALA
KATSO SATEESEEN!
VARNING:OSYNLIG LASERSTRÅLNING NAR DENNA DEL
(EU)
UL
CSA
EU
SCAN
: Manufactured for U.S.A. Market.
: Manufactured for Canadian Market.
: Manufactured for European Market.
: Manufactured for Scandinavian
Market.
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
1-3
2. Product Descriptions
1. Product Feature
PRODUCT FEATURE
Mass Storage Device
You can use the built-in hard drive to store your entire music library,
Support
plus use it as an external drive for your PC to store other data files.
MP3, WMA, Audio ASF and
Your player supports playback of MP3, WMA, Audio ASF and Ogg.
Ogg Playback
USB Host Function Support
Connect external devices such as digital cameras and MP3 player directly
to the unit for easy transfer of music, images and other data files without the
need for a PC.
Video Playback Function
You can view video files after downloading using the Multimedia Studio.
Image & Text Viewer Function
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.
Various Games Support
You can enjoy games such as Tetris, Omok and Othello.
Built-in Rechargeable
The built-in rechargeable lithium battery provides up to 25 hours of music and
Li-ion Battery
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.
2-1
Samsung Electronics
2. Specifications
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 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 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
2-2
3. Accessories
Accessories
Name
Charger
2-3
Code No.
AH44-00100C
Earphones
AH30-00069D
Line-In Cable
AH39-00488B
USB Cable
AH39-00783A
USB Host Adaptor
AH39-00784A
Samsung Electronics
3. Product Functions
1. Basic Functions
Player
Carrying Case
USB Host Adaptor
Remocon
User Manual
Earphones
Charger
Line-In Cable
Installation CD
Model
YH-J70 SB/SW
YH-J70 LB/LW
Built-in memory
20GB
30GB
USB Cable
Docking Cradle
● The capacity of the useable built-in memory is less than indicated as the internal
firmware uses a part of the memory as well.
● The appearance of the accessories shown is subject to change for product improvement
without prior notice.
Play Mode Indicator
Alarm Setting Indicator
EQ/SRS Indicator
Battery remaining indicator
Song number display
Volume Indicator
Current Track Title
Play/Stop/Pause Indicator
Play Time Indicator
Location of Controls
Progress Indicator
MIC
LINE IN Jack
Earphone Jack
Display
MENU button
TOOL button
[Back Side]
RESET Hole
Loop Repeat/
Record button
HOLD switch
Power On/Off
Play/Pause button
Skip/Search button
Select/Navigation/
Volume Control Button
Skip/Search button
USB Cable Connection Port
Samsung Electronics
3-1
Playing Music
Searching for Music/Voice Files
Make sure the player is fully charged and the earphones are connected.
● Power On: Press and hold the √» button to turn on the power.
● Power Off: Press and hold the √» button to turn off the power.
I Playing Music
I To Search for Specific Parts During 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 Change Tracks During Play
Press and hold the √» button
● Press the
button briefly during playback to play the next track.
● Press the
button briefly within 5 seconds after playback starts to move to and
play the previous track. Press the
button briefly after 5 seconds to play the
current track from the beginning.
● Playback starts automatically.
I Pausing Music
I To Change Tracks when Stopped
Press the √» button to pause playback.
● While in Pause mode, briefly press √» again
to resume playback.
● Press the
,
button in stop/pause mode to move to the previous/next track.
✍ Note
I Adjusting Volume
Adjust volume by moving the SELECT button up and down.
● The volume can be adjusted in increments between 00(MIN) and 60(MAX).
- VBR(Variable Bit Rate) file: A file that constantly changes the compression rate
according to the type of sounds, such as their pitch, in the
file.
- 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.
Hold Feature
Use the Hold feature to lock and disable all buttons.
Hold Function of the Main Unit
Activate
● You can move and select using the SELECT button.
● Press the
button to move to the previous screen.
on the main unit.
❈ All buttons on the main unit will be disabled,
and only the buttons on the remote control can
be used for input.
❈ When you activate the HOLD switch, a "
appears on the display.
"
Hold Function of the Remote Control
Activate
Setting Main Functions in Music Mode
on the remote control.
I Add to Favorites
1 Press the TOOL button in music mode.
● Music Tool screen appears.
2 Press the SELECT button after moving to
[Add to Favorites].
3 Press the SELECT button after moving to
Music - Tool
Add to List
Favorites
1
EQ
List 2
SRS
List 3
Play Mode
List 4
File Info.
List 5
the list to save.
❈ All buttons on the remote control will be
disabled, and only the buttons on the
main unit can be used for input.
✍ Note
- Press and hold the √» button on the remote control to turn the power on/off using the
remote control in hold mode.
● The selected file will be added to the list.
● 10 Playlists can be selected.
● Added files can be found at [Navigation] → [Playlist] → [Favorites].
I EQ
1 Press the TOOL button in music mode.
● Music Tool screen appears.
2 Press the SELECT button after moving
Loop Repeating
to [EQ].
Music - Tool
Add to Favorites
Normal
EQ
Jazz
SRS Classic
Play Mode
Pop
File Info.
Rock
3 Press the SELECT button after moving to
the desired sound effect mode.
I Starting Point
While playing a music file, press the A↔B
button at the beginning of the loop you
want to set.
● Normal → Jazz → Classic → Pop → Rock → Bass Boost → Bass Cut → R&B →
Club → Dance → House → High Boost → High Cut Loud → Ballad → Strings →
Vintage → Vocal Boost → Bluesy → User EQ
● When using User EQ, the desired sound effects can be set from [Settings] →’
[Sound Effect] → [User EQ Set].
● A↔ appears in the display.
I 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.
3-2
Samsung Electronics
Setting Main Functions in Music Mode
MENU Options
I SRS
1 Press the TOOL button in music mode.
● Music Tool screen appears.
Music - Tool
moving to [SRS].
3 Press the SELECT button after
Press the MENU button to switch to Menu mode.
Use the SELECT button to select the menu item you want, and then briefly press the
SELECT button.
Add to Favorites
Normal
EQ
SRS
SRS
TruBass
Play Mode
WOW
File Info.
HD
2 Press the SELECT button after
2. New Functions
moving to the desired SRS mode.
● Normal → SRS → TruBass → WOW → HD
● SRS: You will hear 3D Streo sound.
● TruBass: This is bass boost feature that adds fillness to the sound.
● WOW: This feature allows you to enjoy the SRS and Trubass features
simultaneously.
● HD: You can enjoy more clear voice and high tones.
01 I Music
02 I FM Radio
03 I Navigation
04 I Text
05 I Photo/Video
06 I USB Host
07 I Games
08 I Settings
✍ Note
-
is a trademark of SRS Labs, Inc.
WOW technology is incorporated under license from SRS labs, Inc..
- Please adjust the volume to a suitable level, as the volume may increase in the
SRS setting.
- This unit supports sampling frequencies of 32KHz, 44.1KHz or 48KHz.
I Play Mode
1 Press the TOOL button in music mode.
● Music Tool screen appears.
2 Press the SELECT button after moving
to [Play Mode].
Music - Tool
Listening to FM Radio
● Normal : To play all the files in order one time.
● Repeat: Press the SELECT button at [Repeat].
- One : To repeat one file.
- Folder : To repeat the current folder.
- All : To repeat all files.
● Shuffle : Press the SELECT button at [Shuffle].
- Folder : To play files in the folder at random.
- All : To play files at random.
I Switching to FM Radio Mode
Press the MENU button.
In the Menu, select FM Radio and then press the SELECT button.
I File Info.
1 Press the TOOL button while
2 Press the SELECT button after
button to move to the previous screen.
File Info.
to the desired Play Mode.
● Music Tool screen appears.
✍ Note
- In Menu mode, press the
Add to Favorites
Normal
EQ
Repeat
SRS Shuffle
Play Mode
3 Press the SELECT button after moving
the music is playing or has
stopped.
● Now playing : To display the song currently playing.
● FM Radio : To listen to FM radio.
● Navigation : To move to Navigation Mode and browse files and folders.
● Text
: To read text files
● Photo/Video : To view saved image files or videos
● USB Host : To transfer files saved in the unit to external devices or transfer
files saved in external devices to the unit.
● Games
: To play games.
● Settings
: To set the functions.
I Search for a Frequency
Blue
Title
Sky
Artist
Best
Album
Dance
Genres
7782656 bytes
File Size
● Manual Search: Press the
,
buttons to change the frequency up or down.
● Automatic Search: Press and hold the
,
buttons to automatically search for
receiving frequencies.
moving to [File Info.].
● Information on file currently playing/paused is displayed.
Samsung Electronics
3-3
Setting Main Functions in FM Mode
You can move and select using the SELECT button
Press the
button to move to the previous screen.
I Mono / Stereo
1 Press the TOOL button in FM Mode.
● FM Tool Screen appears.
2 Press the SELECT button after moving
to [Mono/Stereo].
Recording Voice
1 Press and hold the REC button.
● Recording screen appears.
2 Press the REC button to start voice recording.
FM - Tool
Mono/Stereo
Mono
Preset Mode
Stereo
Edit Preset
Auto Preset
3 Press the SELECT button after moving
3 Press the REC button again.
● Recording stops and the file is created.
● Files are recorded and renamed V001.mp3, V002.mp3, and so on.
● MP3 files are added to [Navigation] → [File Search] → [RECORDED] → [VOICE REC].
● Press the √» button to play the recorded file.
to the desired FM reception mode.
✍ Note
- Mono is automatically selected in areas with weak FM reception.
I Preset Mode
1 Press the TOOL button in FM Mode.
● FM Tool Screen appears.
2 Press the SELECT button after moving
FM - Tool
-REC:Start
V001.mp3
-TOOL:Exit
Mono/Stereo
Preset Mode
On
Edit Preset
Off
Auto Preset
to [Preset Mode].
✍ Note
3 Press the SELECT button after moving
- Even if you set the sampling and bit rates higher, voice recording will default to 44.1KHz.
to On/Off.
● On : Preset mode is selected. Select preset
frequency using the
,
button
● Off : FM reception mode is selected.
Recording FM Radio
I Edit Preset
● You can manually preset desired FM frequencies.
● You can store up to 30 frequencies.
1 Press the TOOL button in FM Mode.
● FM Tool Screen appears.
1 Press and hold the REC button while receiving FM.
FM - Tool
Mono/Stereo
Preset Mode
Edit Preset
Save
Auto Preset
Delete
2 Press the SELECT button after moving to [Edit Preset].
3 Press the SELECT button after moving to
FM - Tool
[Save] or [Delete].
● Save : Select the desired Preset number by
using the SELECT button. The current
frequency will be saved.
● Delete : Select a saved preset number to be
deleted.
The selected preset number will be deleted.
I Auto Preset
1 Press the TOOL button in FM Mode.
Preset Memory
Mono/Stereo
CH 01: 87.75
● Recording screen appears.
2 Press the REC button.
● Current FM broadcasting will be recorded.
3 Press the REC button again.
● Recording stops and the file is created.
● Files are recorded and renamed F001.mp3, F002.mp3, and so on.
● MP3 files are added to [Navigation] → [File Search] → [RECORDED] → [FM REC].
● Press the √» button to play the recorded file.
Preset
CH Mode
02: 91.90
EditCH
Preset
03: 95.90
AutoCH
Preset
04: 103.50
108.00 MHz
CH 05: 107.70
-REC:Start
-TOOL:Exit
108.00 MHz
F001.mp3
● FM Tool Screen appears.
2 Press the SELECT button after moving to
[Auto Preset].
● Frequencies are automatically stored up to 30.
3-4
Samsung Electronics
● You can move and select using the SELECT button.
● Press the
button to display the previous screen.
Recording MP3s
1 Connect the Audio Output port on the external audio source (or the
Line Out port) to the LINE IN port on the device with the Line cable.
● Press the play button on the external
device to play the music to record.
I Go to Top
1 Press the TOOL button in Navigation Mode.
● Navigation Tool screen appears.
2 Press the SELECT button after moving to [Go to Top].
2 Press and hold the REC button.
● Move to the File Navigation screen.
● Recording screen appears.
Navigation - Tool
Go to Top
Add to Favorites
3 Press the REC button again.
● Recording stops and the file is created.
● Files are recorded and renamed L001.mp3, L002.mp3, and so on.
● MP3 files are added to [Navigation] → [File Search] → [RECORDED] →
[LINE REC].
● Press the √» button to play the recorded file.
Navigation
File Search
Music Library
Playlist
I Add to Favorites
1 Press the TOOL button after moving to the
music file in Navigation Mode.
● Navigation Tool screen appears.
-REC:Start
-TOOL:Exit
Navigation - Tool
Go to Top
List 1
Add toList 2
2 Press the SELECT button after moving to
L001.mp3
[Add to Favorites].
✍ Note
List 3
List 4
List 5
3 Press the SELECT button after moving to the list to save.
- Do not disconnect the Line cable during Recording.
- If the battery is not sufficiently charged, the player will not completely record the file.
- Adjust the volume of the external audio source to a suitable level and recode it.
If the volume level is too high, the sound quality may be poor.
● The selected file will be added on the list.
● 10 Playlists can be selected.
● Added files can be found at [Navigation] → [Playlist] → [Favorites].
Setting Main Functions in Navigation
● You can move and select using the SELECT button.
● Press the
button to display the previous screen.
I Delete File
1 Press and hold the SELECT button to move to navigation mode, or
press the
MENU button to move to Menu and then select Navigation.
● File Search : You can search for a file from MUSIC, PHOTO, TEXT or VIDEO
folder.
● Music Library : You can search for a music file by Artist, Album, Genre and
Track.
● Playlist : You can search for a file specified as a Favorite in the player or PC
Playlist transmitted through yepp Studio.
● Recorded files can be deleted in Navigation Mode.
Other files can be deleted using Media Studio.
1 Press the TOOL button after moving recorded file to
delete in Navigation Mode.
● Navigation Tool screen appears.
2 Press the SELECT button after moving to [Delete File].
● The selected file will be deleted.
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.
VOICE REC
V001.MP3
V002.MP3
V003.MP3
3 Press the SELECT button.
● The selected file will be played.
Navigation - Tool
Navigation
File Search
File Search
Music Library
Playlist
MUSIC
PHOTO
RECORDED
TEXT
VIDEO
POP
Go to Top
Delete File
MUSIC
Sexy boms.mp3
blue.mp3
Ill be there for you.mp3
Samsung Electronics
3-5
3. PC Connection
Viewing Text
● Text Viewer allows you to read text files that were created on your PC.
Text files must have a .txt extension to be viewed by Text Viewer.
● You can select an text file to view while listening to the music.
1 Press the MENU button to move to menu, and then select Text.
● Navigation screen appears.
Connecting the player to your PC
❑ System Requirements.
The PC system must meet the following specifications:
● Pentium 200MHz or greater
● Windows XP
● 50MB of available hard disk space
● CD-ROM drive (double speed or greater)
N o t e● USB port (2.0) supported
- Log ●
intoDirectX
your PC9.0
as an
(Main User) and install the supplied software
oradministrator
above.
04 I Text
(Media / Multimedia Studio) for Windows XP.
Otherwise, the software may not install properly.
2 Move to the text you want to read, and then press the SELECT button.
● The selected text file will be displayed.
- ▲,▼ : Volume Control.
,
: Move to Previous/Next Page.
- Text File Selection: Press and hold the SELECT button to move to navigation
during a music is playing. Move to the desired text file, and
then press the SELECT button.
0011
/0102
TEXT
The Little Prince
Door.txt
Identity.txt
The Little Prince.txt
Once when I was six
years old I saw a magnificent picture in a
book, called True
Stories from Nature,
about the primeval for
✍N
Install Samsung Media Studio prior before connecting the player to PC.
I Installing Software
1 Insert the Installation CD into CD-ROM drive.
The picture shown below appears.
Select [Install Samsung Media Studio].
2 Follow the instructions in the window to complete the installation.
3-6
Samsung Electronics
I Connecting the player to your PC with a USB cable
3 Connect the USB cable to the USB port of the computer.
4 Connect the other end of the USB cable to the USB cable connection
port located at the bottom of the player.
● If you disconnect the USB cable from your PC while implementing a command
or initializing during USB driver installation, your PC may not function correctly.
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 successfully completed.
6 Upon installation of the USB driver "Samsung YH-J70 USB Device"
will appear in the [Device Manager].
Player
Player
PC
USB Cable
PC
USB Cable
How to check if USB driver is properly installed
Windows XP:
Control Panel → System → Hardware → Device Manager → Disk Drives →
Samsung YH-J70 USB Device
7 When USB driver is not installed automatically, refer to next page.
Samsung Electronics
3-7
4. Adjustments
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.
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 the SYSTEM folder.
4-1
sSamsung 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.
Samsung Electronics
4-2
5. How to disassemble
Order(Description)
Picture
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.
5-1
Samsung Electronics
Order(Description)
Picture
5. Picture after disassembly
6. Remove the 4 screws from 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
Samsung Electronics
5-2
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
5-3
Samsung Electronics
6. Troubleshooting
1. It keeps being turned off
Samsung Electronics
6-1
2. No Sound can be heard
6-2
Samsung Electronics
3. Recording Failure (Line IN)
Samsung Electronics
6-3
4. Recording Failure (Audio)
6-4
Samsung Electronics
5. The buttons does not works
Samsung Electronics
6-5
6. When you cannot connect the player to the PC
Samsung Electronics
6-6
7.Exploded View & Parts List
1. Total Exploded View
AS100
AA130
AC010
AK240
AK290
CONNECTOR-FPC
FRONT
AK335
AW120
AD358
AC357
PCB
AC080
AB335
AB153
AS079
AK300
AC065
AS161
AA055
AC020
AK200
AK327
FPC-HDD
AB250
Battery
AH264
PCB-HDD
HDD
AS066
AC324
AK315
AA005
AC000
AC300
7-1
Samsung Electronics
2. Parts List
Location No.
Code No.
Descripion
Specification
Qty
REMARK
AH64-03679G
CABINET-BACK-ASSY
PC,BLACK
1
YH-J70SB/LB
AH64-03679H
CABINET-BACK-ASSY
PC,WHITE
1
YH-J70SW/LW
AH64-03681A
CABINET-SIDE-ASSY
PC,SILVER
1
AH64-03678C
CABINET-FRONT-ASSY
PC,BLACK
1
YH-J70SB/LB
AH64-03678D
CABINET-FRONT-ASSY
PC,WHITE
1
YH-J70SW/LW
AB153
AH61-01933A
BRACKET-FRAME
SUS 3/4H
1
AB250
AH61-01935A
BRACKET-LCD
SPTE t0.3
1
AB335
AH61-01934A
BRACKET-TOP
SPTE t0.5
1
AH64-03432C
CABINET-BACK
PC,BLACK
1
YH-J70SB
AH64-03432D
CABINET-BACK
PC,WHITE
1
YH-J70SW
AH64-03432G
CABINET-BACK
PC,BLACK
1
YH-J70LB
AH64-03432H
CABINET-BACK
PC,WHITE
1
YH-J70LW
AH64-03433C
CABINET-FRONT(N)
PC,BLACK
1
YH-J70SB/LB
AH64-03433D
CABINET-FRONT(N)
PC,WHITE
1
YH-J70SW/LW
AC020
AH64-03431A
CABINET-BOTTOM
PC,WHITE
1
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
AH69-01518A
CUSHION-LCD
PORON t0.5 + 3M t0.05
1
AD358
AH64-03446A
DECO STRAP
Zn, PLATING
1
AH264
AH61-01932A
HOLDER-HDD
ELASTOMER (TRIEL 5302)
1
AK200
AH64-03441A
KNOB-HOLD
ABS
1
AH64-03620A
KNOB-MENU
PC
2
YH-J70SB/LB
AH64-03620B
KNOB-MENU
PC
2
YH-J70SW/LW
AH64-03619A
KNOB-POWER
PC
1
YH-J70SB/LB
AH64-03619B
KNOB-POWER
PC
1
YH-J70SW/LW
AH64-03443A
KNOB-REC
ABS
1
AA005
AA055
AA130
AC000
AC010
AC300
AK240
AK290
AK300
Samsung Electronics
7-2
Location No.
Code No.
Descripion
Specification
Qty
REMARK
AH64-03445A
KNOB-RESET
PC
1
YH-J70SB/LB
AH64-03445B
KNOB-RESET
PC
1
YH-J70SW/LW
AH64-03624A
KNOB-SELECT
ABS / PC
1
YH-J70SB/LB
AH64-03624B
KNOB-SELECT
ABS / PC
1
YH-J70SW/LW
AH64-03626A
KNOB-SKIP
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
AS100
AH63-01026A
SHEET-LCD
3M T0.05
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-TAPTITE
M1.7*6
2
AK315
AK327
AK335
7-3
Samsung Electronicsπ
8. Electrical Parts List
Location no.
Code no.
Description & Specification Remarks
** YH-J70SW Series **
AA005
AA055
AA130
AB153
AB250
AB335
AC020
AC065
AC080
AC357
AD358
AH264
AK200
AK240
AK290
AK300
AK315
AK327
AK335
AS040
AS040
AS040
AS066
AS074
AS079
AS082
AS095
AS161
AW120
BATT6
BD410
BD422
BD430
BD501
BUZZE
C106
C117
C144
C308
C436
C443
C447
C452
C502
C503
C506
C515
C543
C544
C604
C605
C609
C615
C617
C627
C632
CON-H
CON-H
CRADL
D407
D504
D601
D603
D804
FMPAC
FSW1
IC101
IC102
IC202
IC203
IC301
IC302
IC401
IC403
IC404
IC405
IC501
IC601
IC602
IC603
IC801
IC802
JACK5
KR1
KR2
L401
L506
L601
L604
AH64-03679B
AH64-03681A
AH64-03678B
AH61-01933A
AH61-01935A
AH61-01934A
AH64-03431A
AH64-03435A
AH64-03437A
AH69-01518A
AH64-03446A
AH61-01932A
AH64-03441A
AH64-03620B
AH64-03619B
AH64-03443A
AH64-03445B
AH64-03624B
AH64-03626B
6003-001143
6003-001258
6003-001479
AH63-01029A
AH63-01028A
AH63-01039A
AH63-01005A
AH63-00768B
AH63-01035A
AH64-03617B
3710-001436
3301-001272
2007-000029
2007-000070
3301-001364
3002-001144
2404-001247
2203-000254
2203-002709
2404-001401
2203-006090
2404-001281
2203-005493
2203-000627
2203-005900
2404-001407
2203-000585
2203-002885
2404-001244
2404-001064
2203-001640
2203-006391
2203-000681
2203-000236
2203-002793
2404-001348
2203-006818
3708-002076
3711-005881
3710-002208
1405-001171
0406-001128
0404-001010
0404-001203
0401-001090
AH40-00116A
3403-001150
0904-001993
1203-003746
1105-001672
1107-001547
0801-002996
0801-002997
0904-001992
1205-002517
0801-002959
0801-002800
1002-001374
1203-003254
1203-003257
1203-003726
0909-001041
1209-001596
3722-002300
2007-001319
2007-001320
2704-000005
2703-000275
2703-001871
2703-001873
CABINET-BACK-ASSY;YH-J70,PC,-,-,-,-,WHIT
CABINET-SIDE-ASSY;YH-J70,-,-,-,-,-,SILVE
CABINET-FRONT-ASSY;YH-J70,PC,-,-,-,-,WHI
BRACKET-FRAME;YH-J70,SUS,t0.35,-,-,-,BRACKET-LCD;YH-J70,SPTE,t0.3,-,-,-,PLATI
BRACKET-TOP;YH-J70,SPTE,t0.5,-,-,-,CABINET-BOTTOM;YH-J70,PC,-,-,-,-,WHITE,CABINET-SIDE(N);YH-J70N,PC,-,-,-,-,WHITE
CABINET-TOP;YH-J70,PC,-,-,-,-,WHITE,CUSHION-LCD;YH0J70,PORON,t0.5,-,-,-,-,BL
DECORATION-STRAP;YH-J70,Zn,-,-,-,-,-,PLA
HOLDER-HDD;YH-J70,ELASTOMER,-,-,-,-,KNOB-HOLD;YH-J70,ABS,-,-,-,-,-,-,PLATING
KNOB-MENU;YH-J70,-,-,-,-,-,WHITE,-,KNOB-POWER;YH-J70,-,-,-,-,-,WHITE,-,KNOB-REC;YH-J70,ABS,-,-,-,-,-,-,PLATING
KNOB-RESET;YH-J70,PC,-,-,-,-,-,-,######
KNOB-SELECT;YH-J70,-,-,-,-,-,WHITE,-,KNOB-SKIP;YH-J70,-,-,-,-,-,WHITE,-,SCREW-TAPTITE;PH,+,-,B,M1.7,L6,NI PLT,SW
SCREW-TAPTITE;PH,+,B,M1.4,L2.0,NI PLT,SW
SCREW-TAPTITE;BH,+,B,M1.7,L4,ZN
SHEET-CONDUCTIVE;YH-J70,Ni-Sheet,0.09,-,
SHEET-EMI;YH-J70,PET,0.02,-,-,####,BACK
SHEET-FRAME B;YH-J70,NITTO031CT,-,-,-,-,
SHEET-HOLD;467MP,-,0.05,-,-,####,BACK SI
SHEET-PCB;YP-60,3M5480,-,W8,L18,-,SHEET-USB;YH-J70,-,-,-,-,-,WINDOW-LCD;YH-J70,ACRYL,2.0T,-,-,-,-,SOCKET-BOARD TO BOARD;2P,1R,1.27mm,SMD-A
BEAD-SMD;120ohm,2x1.25x1mm,-,TR,-,-,R-CHIP;0ohm,5%,1/8W,TP,2012
R-CHIP;0ohm,5%,1/10W,TP,1608
BEAD-SMD;1000ohm,1608,150mA,TP,1085ohm/
BUZZER-MAGNETIC;78dB,3.0V,100mA,4000Hz,R
C-TA,CHIP;22UF,20%,4V,WT,TP,2012
C-CER,CHIP;10nF,10%,16V,X7R,1005
C-CER,CHIP;100nF,+80-20%,16V,Y5V,1005
C-TA,CHIP;220uF,+-20,4V,SMD,REEL,3216
C-CER,CHIP;10000nF,10%,6.3V,X5R,2012
C-TA,CHIP;22UF,20%,6.3V,WT,TP,2012
C-CER,CHIP;220nF,+80-20%,16V,Y5V,1005
C-CER,CHIP;0.022NF,5%,50V,C0G,TP,1005
C-CER,CHIP;1000NF,+80-20%,10V,Y5V,1005
C-TA,CHIP;TEESVB20E337M8R,330uF,20%,2.5V
C-CER,CHIP;0.22nF,10%,50V,X7R,1005
C-CER,CHIP;33nF,+80-20%,50V,Y5V,TP,1005
C-TA,CHIP;4.7uF,20%,6.3V,-,TP,2012
C-TA,CHIP;10UF,20%,6.3V,WT,TP,2012
C-CER,CHIP;0.39nF,10%,50V,X7R,TP,1608
C-CER,CHIP;1000NF,10%,10V,X7R,-,1608
C-CER,CHIP;0.027nF,5%,50V,C0G,1608
C-CER,CHIP;0.1nF,5%,50V,C0G,1608
C-CER,CHIP;1000nF,+80-20%,25V,Y5V,2012
C-TA,CHIP;100uF,##20%,6.3V,-,TP,3.2X1.6X
C-CER,CHIP;47000nF,20%,6.3V,X5R,3216
CONNECTOR-FPC/FFC/PIC;51P,0.3mm,SMD-A,SN
HEADER-BOARD TO CABLE;NOWALL,50P,2R,1.27
CONNECTOR-INTERFACE;18P,1R,0.5mm,ANGLE,N
VARISTOR;6Vdc,-,1x0.5x0.5mm,TP
DIODE-TVS;MLVS-0603-E08,50V,-,DIODE-SCHOTTKY;KDR729,30V,200MA,DSM,TP
DIODE-SCHOTTKY;B240A,40V,2000MA,SMA,TP
DIODE-SWITCHING;1SS355,80V,100MA,SOD-323
TUNER-FM MODULE;GRP-412S,YH-J50,FM,-,-,SWITCH-PUSH;5V,10mA,-,CW-PUSH-CCW,IC-DSP;SCF5250VM120,16Bit,BGA,196P,15
IC-VOL. DETECTOR;XC61FC1912MR,SOT-23,3P,
IC-DRAM;EM48AM1684,16Mx16Bit,TFBGA,54P
IC-FLASH MEMORY;39VF3201,2Mx16Bit,TFBGA,
IC-CMOS LOGIC;74LVC16245A,transceiver,TV
IC-CMOS LOGIC;74LVC245A,transceiver,TVSO
IC-USC;ISP1761ET,32Bit,TFBGA,128P,9.0
IC-SWITCH;TPS2020D,SO,8P,-,-,5.5V,725mW,
IC-CMOS LOGIC;7SV32,OR GATE,SC-70,5P,2x1
IC-CMOS LOGIC;NC7SV08,AND GATE,SC70,5P,4
IC-A/D&D/A CONVERTER;WM8750L,24,QFN,32P,
IC-DC/DC CONVERTER;LTC3455,QFN,24P,4X4MM
IC-DC/DC CONVERTER;XC9103,SOT-25,5P,2.9X
IC-DC/DC CONVERTER;XC9216A12CMR,SOT-25,5
IC-REAL TIME CLOCK;RX-8564LC,8Bit,VSOJ-1
IC-SENSOR;MMA7260QR2,QFN,16P,6x6mm,PLAST
JACK-PHONE;11P,-,AU,-,R-CHIP;1.2KOHM,5%,1/16W,TP,1005
R-CHIP;1.8KOHM,5%,1/16W,TP,1005
INDUCTOR-SMD-ARRAY;90OHM,50V,370MA,-,0.3
INDUCTOR-SMD;33UH,10%,2012
INDUCTOR-SMD;10uH,20%,6060
INDUCTOR-SMD;4.7uH,20%,6060
Samsung Electronics
Location no.
L605
LCD1
MIC50
MKEY_
Q512
Q515
Q601
Q602
Q605
Q606
Q607
Q802
R103
R120
R170
R205
R301
R335
R417
R424
R439
R445
R504
R517
R520
R522
R527
R528
R534
R539
R542
R543
R604
R606
R607
R608
R610
R612
R614
R616
R618
R619
R621
R622
R625
R820
R823
R828
SW109
SW110
SW801
X101
X402
Code no.
2703-001920
3708-002077
3003-001099
3708-002035
0505-001174
0504-001084
0504-000156
0505-001845
0504-000211
0505-001426
0504-000128
0501-000730
2007-001333
2007-007107
2007-002797
2007-000171
2007-001292
2007-000982
2007-001694
2007-000148
2007-000092
2007-000170
2007-000162
2007-000172
2007-000157
2007-000775
2007-000143
2007-000153
2007-000141
2007-001325
2007-000636
2007-000139
2007-000104
2007-000309
2007-007981
2007-007488
2007-008453
2007-009079
2007-000045
2007-002425
2007-000078
2007-008676
2007-008780
2007-000637
2007-008697
2007-000140
2007-000758
2007-000138
3404-001152
3404-001143
3408-001110
2804-001641
2801-004318
AH61-02036A
AH63-01025A
AH69-01519A
4302-001186
AH07-00163A
AH30-00084D
AH39-00488B
AH39-00783A
AH39-00784A
AH41-00866A
AH41-00872A
AH44-00100C
AH59-01259A
AH61-02013A
AH68-00508D
AH68-00511E
AH68-00701H
AH68-01675B
AH68-01746B
AH68-50119B
AH69-01521A
AH80-00119A
AH92-02343A
Description & Specification Remarks
INDUCTOR-SMD;2.2uH,20%,3225
CONNECTOR-FPC/FFC/PIC;33P,0.3mm,SMD-A,SN
MIC-CONDENSOR;2V,130~300uA,-44dB,2.2Kohm
CONNECTOR-FPC/FFC/PIC;4P,0.5mm,SMD-A,AU,
FET-SILICON;SI2302ADS,N,20V,2.4A,65mohm,
TR-DIGITAL;-,NPN,200mW,2.2K,SOT-323,TP
TR-DIGITAL;KSR2103,PNP,200MW,22K/22K,SOT
FET-SILICON;Si2312DS,N,20V,3.77A,0.051oh
TR-DIGITAL;DTC143TU,NPN,200mW,4.7K,SC-70
FET-SILICON;IRLML6401,P,-12V,-4.3A,0.05o
TR-DIGITAL;-,NPN,200MW,22K/22K,SOT-23,TP
TR-SMALL SIGNAL;2SA1577,PNP,200MW,SOT-32
R-CHIP;18KOHM,5%,1/16W,TP,1005
R-CHIP;100Kohm,1%,1/16W,TP,1005
R-CHIP;560OHM,5%,1/16W,TP,1005
R-CHIP;0ohm,5%,1/16W,TP,1005
R-CHIP;33OHM,5%,1/16W,TP,1005
R-CHIP;5.6KOHM,5%,1/16W,TP,1005
R-CHIP;12Kohm,0.5%,1/10W,TP,1608
R-CHIP;10Kohm,5%,1/16W,TP,1005
R-CHIP;15Kohm,5%,1/10W,TP,1608
R-CHIP;1MOHM,5%,1/16W,TP,1005
R-CHIP;100Kohm,5%,1/16W,TP,1005
R-CHIP;10ohm,5%,1/16W,TP,1005
R-CHIP;47Kohm,5%,1/16W,TP,1005
R-CHIP;33KOHM,5%,1/16W,TP,1005
R-CHIP;4.7Kohm,5%,1/16W,TP,1005
R-CHIP;22KOHM,5%,1/16W,TP,1005
R-CHIP;2.2Kohm,5%,1/16W,TP,1005
R-CHIP;3.3Kohm,5%,1/16W,TP,1005
R-CHIP;270KOHM,5%,1/16W,TP,1005
R-CHIP;220OHM,5%,1/16W,TP,1005
R-CHIP;150Kohm,5%,1/10W,TP,1608
R-CHIP;10ohm,5%,1/10W,TP,1608
R-CHIP;180Kohm,1%,1/16W,TP,1005
R-CHIP;75KOHM,1%,1/16W,TP,1005
R-CHIP;1.24KOHM,1%,1/16W,TP,1005
R-CHIP;255Kohm,1%,1/16W,TP,1005
R-CHIP;3.32Kohm,1%,1/10W,TP,1608
R-CHIP;1ohm,5%,1/10W,TP,1608
R-CHIP;1Kohm,5%,1/10W,TP,1608
R-CHIP;80.6KOHM,1%,1/16W,TP,1005
R-CHIP;0.1OHM,1%,1/16W,TP,1005
R-CHIP;270Kohm,5%,1/10W,TP,1608
R-CHIP;2.49KOHM,1%,1/16W,TP,1005
R-CHIP;1Kohm,5%,1/16W,TP,1005
R-CHIP;330KOHM,5%,1/16W,TP,1005
R-CHIP;100ohm,5%,1/16W,TP,1005
SWITCH-TACT;12V DC,20mA,160gf,4.5x4.0x2.
SWITCH-TACT;12VDC,20mA,180gf,3.2x4.9x1.7
SWITCH-SLIDE;5V,1mA,1,-,OSCILLATOR-CLOCK;11.2896MHz,50ppm,15pF&1
CRYSTAL-SMD;12MHz,20ppm,-,12PF,80ohm,TP
BRACKET-FRAME-ASSY;YH-J70,SUS,t0.3(3/4H)
SHEET-LCD SIDE;YH-J70,-,-,28,3,-,CUSHION-CON.HDD;YH-J70,PORON,t0.5,5,20,BATTERY-LI(2ND);3.7V,970mAH,-,190mA,4.2V
LCD;LCD MODULE,YH-J70,-,40 x 47.6
PHONE-EAR(EP-360);WHITE,EP-360,16ohm,NOR
CBF CABLE-STEREO CORD;YD-11034 ,YP-60,3P
CBF CABLE FORM-USB;49217-1001,YH-J70,2,1
CBF CABLE FORM-USB;49291-001,YH-J70,-,10
FPC;YH-J70,0,FPC,4,0.8T,YH-J70
FPC;YH-J70,FPC,1,0,0.15,15.6X22,-,
ADAPTOR;PSCV050102C,YH-J70,-,100~240Va
HDD;20GB,MK2006GAL,63,4,46,160,5MM
CASE-CARRYING;YH-J70,SILICON,-,-,-,-,LABEL BAR CODE;-,-,ART PAPER,-,80x95mm,LABEL-PACKING;YP-T7,KOR/CHN,-,-,-,-,-,-,
LABEL SERIAL;YP-T7,ALL,-,-,W20,L5.6,-,-,
MANUAL USERS;YH-J70L,SEDA,PORTUGUESE,-,LABEL-WINDOW;YH-J70,XAA,PET,t0.1,-,-,CLE
LABEL-EAN(B);ART-PAPER,T0.05,L29,W47,WHT
PACKING-BLISTER;YH-J70LB,-,-,-,62,16.4,9
INSTALL;YH-J70,-,CD,INSTALL,-,-,-,ASSY PCB-YH-J70 MAIN;YH-J70,MAIN
8-1
9. Block Diagram
Samsung Electronics
9-1
10. Wiring Diagram
HDD
USB
JACK
TFT LCD
BATTERY
10-1
Samsung Electronics
11. PCB Diagram
- This Document can be used without Samsung’s authorization -
1. MAIN
Samsung Electronics
11-1
2. SUB
11-2
- This Document can be used without Samsung’s authorization -
Samsung Electronics
12. Schematic Diagram
- This Document can be used without Samsung’s authorization -
1. MAINµ
Samsung Electronics
12-1
1-2. SELF-TEST Manual
12-2
- This Document can be used without Samsung’s authorization -
Samsung Electronics
Samsung Electronics
12-3
TABLE 1
See Table 1
See Table 1
12-4
Samsung Electronics
Samsung Electronics
12-5
- 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
13-1
1-2.Main Functions by Block
Samsung Electronics
14. Basic Information of MP3
1-1. Operating Principle of yepp
Terms and Overview
AV Conversion: process of converting Analog Data to Digital Data
SAMPLING RATE : means precision rate of A/D conversion and is indicated in Hz, bit number and
channel number(for CD: 44.1 KHz, 16bit, 2channels)
ENCODING : process of compressing and converting digital data obtained through A/D conversion
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 data before encoding
D/A : Process of converting Digital Data to Analog Data
Samsung Electronics
14-1
Yepp Block Diagram
14-2
Samsung Electronics
Yepp Vocabulary
Yepp (Young Energetic Personal Passinate)
MP3 player that enables you to enjoy audio data like music file in existing CD in high quality by
compressing it to 1/12 level without loss of quality using MPEG1 Layer3(audio compression
technology of animation and sound compression technique). You can also use it for learning foreign
language and Internet broadcasting.
MPEG
MPEG is an abbreviation of Moving Picture Expert Group and means specification defining the
compression and de-compression type of animation by MPEG established in 1988.
MP3
MP3 means MPEG1 Layer3 and compression rate can be up to 96:1(phone) to 12:1(CD) depending
on sound quality with compression coding technique of audio of MPEG technology.
(file extension: "mp3") That is, up to 150 pieces of songs can be recorded in one copy of CD with
MP3 compression.
FLASH Memory
Flash memory is the memory chip where entered information will not be deleted even if the power is
turned off while data is entered, and data can be freely entered 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 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. OTP type MCU is rapidly growing as its life cycle of
set product and multi-kind/small quantity production system is introduced.
Since existing type of micro controller uses Mask ROM which cannot be played or recorded again, it
requires over 5 months to develop set products, and it is not suitable for products with rapid change
of product model.
Firmware
It is a program that controls and manages hardware. Firmware is distinguished from hardware in
that it is a program but is distinguished from general applications in that it is closely related to
hardware. In general, firmware is saved in ROM.
Samsung Electronics
14-3
IP (Information Provider)
Company that provides information that users want through communication system with certain fee.
SecuMAX
As multimedia digital contents distributions become active in networks such as Internet and PC
communication, copyright issue has appeared as an important topic. It is a system that can protect
the right of copyright holders and enables the user to conveniently use contents. To receive service,
member registration is required at digital contents service site adopting SecuMAX.
When completing member registration, customer ID, password and resident registration number will
be registered at 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 digital 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 MPEG audio format as well as SecuMAX, encryption protection system.
CD Ripper
MP3 compression software that converts CD music in PC to MP3 file.
OGG (Ogg Vorbis)
OGG(Ogg Vorbis) is featured to have "higher compression rate than MP3', 'higher quality than
MP3', 'no limit in use, distribution and development due to open source type. The biggest feature 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
without loss due to big width of bit rate.
14-4
Samsung Electronics
1-2. MP3 Overview
MP3 is one of file extension like .hwp, .wav, .txt used in computer.
Exactly, it is the abbreviation of MPEG Audio Layer-3.
Origin of MP3
MPEG is Motion Pictures Expert Group and is a standard made by experts in this area under international standard organization like ISO(International Standard Organization) and IEC(International
Electric Committee). It is technical standard of compressing and transmitting video and audio signals and recovering them again.
The first specification that MPEG made is MPEG-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 compression for conference communication) is being established.
MP3 is most widely used and called "MPEG Audio Layer-3", which is version up from Layer-1 and
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
1-3. Understanding of Digital Audio Format
MP3
MP3 is most widely used and called "MPEG Audio Layer-3", which is version up from Layer-1 and
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.
AAC
MP3 is most widely used and called "MPEG Audio Layer-3", which is version up
from Layer-1 and 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.
WMA (Windows Media Audio)
Multimedia compression type of Microsoft. Only music data is compressed from
“WMT”. Streaming and file format also support 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 developed by Real Network. High quality can be obtained at low transmission speed of 16Kbps-32Kbps using [RealAUDIO G2 Music Codec] as compression type. Since streaming play in Internet radio is the main purpose, file does
not contain copyright protection technology. “Real Player G2” supports MP3 playback and “Real Juke Box” supports encoding from CD to MP3.
14-6
Samsung Electronics
Tips
How MP3 can produce same quality as CD?
Ears of human can listen to signal in the range of 20Hz~20KHz. It is called "audible frequency". To
convey the audible sound in digital type CD, sampling frequency of 44.1KHz, about 2 times of audible frequency, should be used. It is the task of dividing sound signal to 44,100 pieces per second
and making the signal to digital format of 0 and 1. How delicately the sample can be expressed will
be determined by number of bit per sample. Audio CD is 16 bit. It means that 1 sample can be
expressed in 65,536(16 square of 2) stage.
When converting CD music to WAV file, the capacity is about 40MB(for 4 minutes). By converting it
to MP3, it reduces to 4MB since "loss compression", the feature of MP3, is used. Loss compression
type removes the sound beyond the range of audible frequency(20Hz~20KHz). It uses the features
that small sound cannot be heard after very strong sound. <Figure 1> is the sound wave before
loss compression. It can be regarded as the sound wave of music 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 quality. Music CD contains sound made with 16 bit
44.1KHz of stereo sampling. Stereo is the type of dividing the sound into left and right. CD should change
analog
sound to digital.
Digital information is cut between sections and location information is saved in each section.
"Sampling rate" is the standard of how many sub-section it will divide 1section. Divided frequency
part is called 8 bit and 16 bit. 8 bit sampling means that frequency is divided into 2 stage, that is,
sound pitch of 256 stage. 16 bit sampling divides into 65,536 sound pitch. In addition, 44.1KHz
means sampling of 44,100 times per second. To reduce the amount of information made at digital,
sampling bit number and frequency should be set low, but it will cause deterioration of sound quality. 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 lowering the sampling rate, but the capacity can be reduced.
Samsung Electronics
14-7
OGG(Ogg Vorbis)
OGG(Ogg Vorbis) is featured to have "higher compression rate than MP3', 'higher quality than
MP3', 'no limit in use, distribution and development due to open source type. The biggest feature 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 without loss due to big width of bit rate.
14-8
Samsung Electronics
1-4. Type of Storage
MP3 is regarded as MP3.
Let's examine what are the types of storages 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)
Samsung Electronics
14-9
Small Form - factor Cards Comparison
14-10
Samsung Electronics
1-5. Copyright
Various kinds of methods are combined to unify technical
specification to prevent digital music data from illegal reproduction.
Let's examine groups and vocabularies related to copyright.
SDMI (Secure Digital Music Initiative)
Internet music record company consortium to pursue development of digital music file format.
World-class music makers and related groups are formed to protect copyright of music and to prevent illegal reproduction.
-PD : Portable Device
-PM : Portable Media (SMC,MMC,MS,SD Card)
-UID : All PD, PM should have unique ID.
-Binding : All Digital Audio should be bounded to PD or PM.
DRM (Digital Rights Management)
Manage interests 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 service in Korea (M4you.com, etc.)
SDMI compliant vrsion2.0 development completed
Reproduction Prevention System
Reopening of MP3 music service.
Lots of dispute have occurred in network due to copyright.
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
Meaning of SecuMAX System Application
Most legal Internet MP3 service sites adopt SecuMAX and YEPP of Samsung and several companies 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. For example, since YEPP
supports SecuMAX, it can play back, but it means that you cannot play back this at the players of
other companies that do not support SecuMAX.
At present, organization has been formed for standardization of reproduction prevention system in
foreign countries. Samsung Electronics has also participated in this standard 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 back music
Dedicated software required(ex.Samsung Electronics, Music Dreve)
Prevention of usual illegal use such as file transfer, CD-R Copy and hardware reproduction.
-Report for copyright holder
Basic data for collection of copyright fee and near copyright fee
Track sales of all publications through Internet, PC communication or 3rd path.
Provide sales information per IP, song and hour real time.
-Can serve any type of files
-Can applied to Internet and PC communication equally
-Can provide copyright protection service for hardware at the same time.
14-12
Samsung Electronics