Samsung YEPP YP-Q1 Service Manual
YEPP
Model Name : YP-Q1
Model Code : YP-Q1JEW/XEE
SERVICE
YP-Q1JAW/XEE
Manual
YEPP
CONTENTS
1. Precaution
2. Product Specification
3. Disassembly & Reassembly
4. Troubleshooting
5. Exploded View & Part List
6. PCB Diagram
7. Schematic Diagram
YP-Q1
Refer to the service manual in the GSPN (see the rear cover) for the more information.
GSPN (Global Service Partner Network)
Area Web Site
North America service.samsungportal.com
Latin America latin.samsungportal.com
CIS cis.samsungportal.com
Europe europe.samsungportal.com
China china.samsungportal.com
Asia asia.samsungportal.com
Mideast & Africa mea.samsungportal.com
This Service Manual is a property of Samsung Electronics
Co.,Ltd. Any unauthorized use of Manual can be punished
under applicable International and/or domestic law.
© Samsung Electronics Co.,Ltd. Nov. 2008
Printed in Korea
Contents
1. Precaution
1-1 Safety Precautions ...........................................................................................1-1
1-2 Static Electricity Precautions ............................................................................1-2
2. Product Specification
2-1 Product Feature ...............................................................................................2-1
2-2 Specifications ...................................................................................................2-2
2-3 Specifications Analysis .....................................................................................2-3
2-4 Accessories ......................................................................................................2-4
3. Disassembly & Reassembly
3-1 Disassembly Method ........................................................................................3-1
4. Troubleshooting
4-1 Checkpoints by Error Mode.............................................................................. 4-2
4-2 Upgrade Methods............................................................................................. 4-14
5. Exploded View & Part List
5-1 Exploded View .................................................................................................5-2
5-2 Electrical Part List ............................................................................................5-4
6. PCB Diagram
6-1 MAIN PCB Top .................................................................................................6-2
6-2 MAIN PCB Bottom ...........................................................................................6-4
7. Schematic Diagram
7-1 Overall Block Diagram .....................................................................................7-2
7-2 POWER............................................................................................................ 7-3
7-3 CPU PWR & MEM INF..................................................................................... 7-4
7-4 CPU.................................................................................................................. 7-5
7-5 MEMORY .........................................................................................................7-6
7-6 AUDIO ..............................................................................................................7-7
7-7 24PIN I/O, Interface .........................................................................................7-8
Precaution
1. Precaution
1-1 Safety Precautions
1. To remove dust from cabinet, use a dry cloth without using liquid and aerosol cleaner.
2. You should not use attachments not recommended by the company. Otherwise, it may cause critical damage.
3. You should not use this product near water such as bathtub, swimming pool or lake etc.
4. Power supply: A type of battery as displayed on the label should be only used.
5. You should not put any object or liquid into product. Otherwise, it may cause failure or mal-operation.
6. If replacement material is required, service engineer should use materials with the same standard.
The use of non-standardized materials may cause failure of product.
Samsung Electronics 1-1
Precaution
1-2 Static Electricity Precautions
Some semi-conductor parts may be easily damaged due to static electricity.
These elements are generally called as static electricity sense device (ESD). Typically examples of EST include
IC, some transistor and chip element for semi-conductor with electrical field effect.
The following methods should be used to reduce damage of elements occurred due to static electricity:
1. Contact and emit all the grounding objects with static electricity from your body before handling with elements
for semi-conductor or devices with elements for semi-conductor. You should purchase and use static electricity
arm rings or commercially available. You should remove it due to potential shock before supplying power to the
device under test.
2. You should place appliance on the conductive surface like aluminum film to prevent that static electricity is
accumulated or the device is disclosed outside after removing electrical appliance with the ESD device.
3. You should use only soldering iron that is ground when soldering the ESD device.
4. Minimize physical operation when handling with the ESD device for replacement without packing (Otherwise,
namely friction between cloth fibers or lifting of the foot from the carpet floor may cause static electricity enough
to damage the ESD device).
1-2 Samsung Electronics
2. Product Specification
2-1 Product Feature
Superior Specs, Useful Features
- Large 2.4" LCD screen suited to viewing video
- Various features such as FM Radio, FM Recording and Voice Recording
Playback Time
- Over 30 hours of music / 4 hours of video playback possible
Elegant Lighting Effect
- Spectacular colored lighting created by expert lighting designer
Product Specification
The Part of Art (Color LED Effect)
- Product designed by expert lighting designer (ex: Ingo Maurer, EON SLD etc.)
Samsung Electronics 2-1
Product Specification
2-2 Specifications
Basic Specification
Rating DC 5.0V / 500mA
Built-in Battery Power 620mAh / DC 3.7V
AUDIO : MPEG1/2/2.5 Layer3 (8kbps ~ 320kbps, 22kHz ~ 48kHz)
WMA (8kbps ~ 320kbps, 8kHz ~ 48kHz)
VIDEO : SVI (Video: MPEG4, Audio: MP3 (44.1kHz, 128kbps),
File Compatibility
Audio: WMA Spec (Max 860kbps)
Resolution: 302 x 240, Frame Rate: 30fps)
IMAGE : JPEG (ISO/IEC 10918-1/Annex F-Sequential DCT based mode of
operation)
WMV (Video: WMV9 Simple Profile,
Supported Number of
Folders/Files
Earphone Output 20mW/Ch. (France 5mW/Ch) (based on 16Ω)
Output Frequency Range 40Hz ~ 20kHz
Signal to Noise Ratio 90dB
Play Time
Temperature Range for
Operation
Case Plastic
Weight 65g
Dimensions (WxHxD) 51 x 98 x 10.9 mm
FM Frequency 87.5 ~ 108.0MHz
FM Signal to
Noise Ratio
FM
FM T.H.D 1%
Folder : Max. 1000 / File : Max. 6000 (including Folder)
Music : Max. 30hours
(MP3 128kbps, Volume: 15, Normal Sound Mode, LCD Off)
Video : Max. 4hours (Brightness 5, Volume: 15,Normal Sound Mode)
-5 ~ 35˚C (23 ~ 95˚F)
55dB
FM Useable
Sensitivity
2-2 Samsung Electronics
38dB
Product Specification
2-3 Specifications Analysis
Model Name Q1 Nano Sony A600 SerieS Sansa E200 Series
Photo
Capacity 4GB/8GB/16GB 4GB/8GB 2GB/4GB/8GB
LCD
Functions
Sound Effect DNSe 2.0+ - DSEE -
Languages 33 Languages 17 Languages 10 Languages 7 Languages
File Support
Battery Time 30 Hrs / 4 Hrs 24 Hrs / 5 Hrs 33 Hrs / 9.5 Hrs 20 Hrs
2.4" TFT LCD
(320 x 240)
Music
Video
FM Radio
FM Recorder
Voice Recorder
Text Viewer
Photo Viewer
Game
MP3, WMA,
AAC, Ogg, JPEG,
MPEG4, TXT
2" TFT LCD
(320 x 240)
Music
Video
Text Viewer
Photo Viewer
Game
MP3, AAC,
Audible, WAV,
AIFF, H.264
1.8" TFT LCD
(320 x 240)
Music
Video
FM Radio
Line-in Recorder
MP3, WMA, AAC,
MPEG4, JPEG
2GB/4GB/6GB/
8GB
1.8" TFT LCD
Music
Video
FM Radio
FM Recorder
Voice Recorder
MP3, WMA, RAX
Dimensions (WxDxH)
/ Weight
51 x 98 x 10.9
/ 65
69.8 x 52.3 x 6.5
/ 49.2
42 x 79 x 11.5
/ 50
44 x 89 x 13
/ 76
Samsung Electronics 2-3
Product Specification
2-4 Accessories
2-4-1 Supplied Accessories
Accessories Item Item code Remark
Earphones AH59-01886A
Program Installation CD
AH39-00899A
AH46-00063A
Samsung Service CenterUSB Cable
2-4 Samsung Electronics
Disassembly & Reassembly
3. Disassembly & Reassembly
3-1 Disassembly Method
- Be careful to follow the disassembly sequence described in the manual. Otherwise, the product
may be damaged.
- Be sure to carefully read and understand the safety instructions before performing any work as
the IC chips on the PCB are vulnerable to static electricity.
- Assemble in the reverse order of disassembly.
No. Part Name Description Description Photo
1 CABINET-
BACK
2 TOUCH-PAD 1) Remove the ASSY’ WINDOW-
1) Use a paperclip or tool on the A/S
hole in the bottom of the CABINET-
BACK to press it in a downward
direction and remove it.
2) Slowly lift one side of the ASS’Y
WINDOW-LCD and remove it starting
at the tape on both sides.
LCD’s TOUCH-PAD FPCB from the
CONNECTOR.
Samsung Electronics 3-1
3-2 Samsung Electronics
Disassembly & Reassembly
No. Part Name Description Description Photo
3 LCD-
MODULE
1) Use tweezers to remove the left
and right sides of the HOOK part of
the LCD-MODULE from the ASS’Y
CABINET-MIDDLE.
1 Check the left side ventilation
groove.
2 Use the tweezers to remove it
from the hook.
3 Check the right side ventilation
groove.
4 Use the tweezers to remove it
from the hook.
2) Use the upper part’s ventilation
groove to remove the
LCD-MODULE.
1 Use the upper left ventilation
groove to remove the
GROUND SHRRT.
Disassembly & Reassembly
No. Part Name Description Description Photo
4 CABINET-
MIDDLE
1) Remove the 6 screws.
:PH (PI2.5),+,M1.4,L3.5,ZPC (BLK)
5 MAIN-PCB 1) Carefully pick up the MAIN PCB and
remove the BATTERY CONNECTOR.
2) Remove the BATTERY and the MAIN
PCB.
Samsung Electronics 3-3
MEMO
3-4 Samsung Electronics
Troubleshooting
4. Troubleshooting
4-1 Checkpoints by Error Mode ................................................................4-2
4-2 Upgrade Methods .................................................................................4-14
Samsung Electronics 4-1
Troubleshooting
4-1 Checkpoints by Error Mode
Oscilloscope Setting Values
Voltage/DIV 1V/div
TIME/DIV 10ms/div
4-1-1 No Power
Symptom Power does not turn on.
1 Check the power terminal connection (battery, adapter).
Major Checklist
Caution Be careful not to short anything out when checking the power line.
2 Check if the key signal is ‘HIGH’ when the POWER key is pressed.
3 Check 7WH74_IC301 the DODC_EN is ‘HIGH’.
4 Check power. (L301: 1.1V(CPU Core), L302: 3.0V(MAIN))
After insert battery to PCB,
Please TEST
No
The power does not turn on.
Is battery inserted to Main PCB
normally?
Yes
Does the power turn on after
recharging the battery?
No
Yes
A
Completion
4-2 Samsung Electronics
Troubleshooting
A
Yes
Refer to wave pattern
image of Fig. 4-1.
Refer to wave pattern
image of Fig. 4-1.
When power Key is on,
check key signal as ‘HIGH’?
Check 7WH74_IC301 the
DODC_EN is ‘HIGH’.
Check MAIN 12Mhz clock
2
3
No
No
No
Yes
Yes
YesYes
4
Check power.
L301: 1.1V(CPU Core)
L302: 3.0V(MAIN)
No
Refer to wave pattern
image of Fig. 4-1.
1
Check the power terminal connection
(Battery, Adapter)
No
Defective
Completion
Check power at the BATTERY
(single part).
Recheck after replacing the battery.
Samsung Electronics 4-3
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