Samsung Yepp YP-U3 Service Manual Download Page 2

Page: 2 / 45

Ch4 Troubleshooting

1-1.Power Failure

4-1

1-2.No Sound

4-2

1-3. Voice Recording Failed

4-3

1-4. Button Operation Failed

4-4

Restoring the System

4-5

Ch2 Product Descriptions

1. Product Feature

2-1

2. Specifications

2-2

3. Specification comparison

2-3

4. Accessories

2-4

Ch1 Precautions

1-1. Safety Precautions 1-1

1-2. Servicing Precautions 1-2

1-3. Precautions for Electrostatically

Sensitive Device (ESDs) 1-3

1-4. Special Precations and Waring

Lables for Laser Products 1-4

1-5. Special Precautions for HDD 1-5

INDEX

Ch3 How to disassemble

How to disassemble 3-1

Ch5

Exploded View &

Parts List

1-1. Total Exploded View

5-1

1-2. Parts List of Exploded View

5-2

2. Electrical Parts List

5-3

Ch6 Wiring &PCB Diagram

1.Wiring Diagram

6-1

2. PCB Diagram

6-3

Ch7 Schematic Diagram

1.Block Diagram

7-1

2. Schematic Diagram

7-2

Summary of Contents for Yepp YP-U3

Page 1: ...anual PORTABLE DIGITAL AUDIO PLAYER Features 1 Precautions 2 Product Descriptions 3 How to disassemble 4 Troubleshooting 5 Exploded View Parts List 6 Wiring PCB Diagram 7 Schematic Diagram Confidential Application YP U3Z U3Q U3A YP U3JZ U3JQ U3JA Model YP U3 ...

Page 2: ...ons 1 1 1 2 Servicing Precautions 1 2 1 3 Precautions for Electrostatically Sensitive Device ESDs 1 3 1 4 Special Precations and Waring Lables for Laser Products 1 4 1 5 Special Precautions for HDD 1 5 INDEX Ch3 How to disassemble How to disassemble 3 1 Ch5 Exploded View Parts List 1 1 Total Exploded View 5 1 1 2 Parts List of Exploded View 5 2 2 Electrical Parts List 5 3 Ch6 Wiring PCB Diagram 1 ...

Page 3: ...ELECTRONICS ...

Page 4: ...eakage 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 grou...

Page 5: ...nplug the unit s AC power cord from the AC power source before attempting to a Remove or reinstall any component or assembly b Disconnect an electrical plug or connector c Connect a test component in parallel with an electrolytic capacitor 3 Some components are raised above the printed circuit board for safety An insulation tube or tape is sometimes used The internal wiring may be clamped to preve...

Page 6: ...ready to install it Most replacement ESDs are packaged with leads that are electrically shorted together by conductive foam aluminum foil or other conductive materials 8 Immediately before removing the protective material from the leads of a replacement ESD touch the protective material to the chassis or circuit assembly into which the device will be installed 9 Minimize body motions when handing ...

Page 7: ...when it is off to reinforce the fun factor Features OLED 128 64 4Line LCD FM Tuner supporting European RDS Li Poly Battery for 15 Hours Continuous Play DNSe 3D Surround Sound Janus DRM Sleek Touch Pad Auto Sense Playlist Support Better Usability Auto Playlist over SMS Sweet and Pleasing Tunes Simplified menu by deletion of rarely used functions FM Recording Search Speed Intro Playmode Scroll Speed...

Page 8: ...mperatureRangeforOperation Case Weight Dimension WxHxD YP U3 3 7V Li Polymer Rechargeable 250 mAh MPEG1 2 2 5 Layer3 8kbps 320kbps 8kHz 48kHz WMA 48kbps 192kbps 8kHz 48kHz File Max 1500 Voice Recorded File Max 512 20mW CH France 5mW CH 16 Ω 20Hz 20KHz 90dB with A fi lter Based on 1KHz 0dB 15 hours of music play MP3 128kbps Volume 15 Normal sound mode 5 35 C 23 95 F Plastics 22 8g 80 X 25 4 X 11 mm...

Page 9: ...000 1500 Support Number Of Files 20mW 16 Ω 20mW 16 Ω Earphone Output Power 12 Hours of Music Play on the basis of MP3 12kbps at volume 20 in normal sound mode 15 Hours of Music Play on the basis of MP3 12kbps at vol ume 15 in normal sound mode Play Time 20 5g 22 7g Weight 87 5 108MHz 87 5 108MHz FM Frequency Range 55dB 55dB FM Signal To Noise Ratio 10dB 10dB FM Effective Sensitivity 3 Line Negativ...

Page 10: ...2 4 Samsung Electronics 4 Accessories Accessories Name Code No AH30 00084H Earphones Cable Winder AH46 00045A Installation CD AH39 00899A USB Cable AH46 00000A Clip ...

Page 11: ...p will open at the top right side of the player 3 Insert your fingernail into the gap and lift the top cover up 4 Pull the connector displayed in the figure up in the direction of the arrow to separate the top cover 5 Pull the connector displayed in the figure up in the direction of the arrow to separate the top cover 6 Pull the PCB up in the direction of the arrow to separate it ...

Page 12: ...y from the connector 8 The PCB and the cabinet are separated 9 Remove the fixing screws at the bottom and lift the support frame up to separate it 10 Remove the marked screw and separate the PCB Assy 11 Separate the battery from the bottom casing 12 Disassembly is complete ...

Page 13: ...attery voltage is normal 3 5 4 2V Are 3V and 1 2V be measured The big black tantalum next to the touch connector and the yellow cap between the battery connector and the Record key Is the Play key working properly Check the voltages at both sides of the key 3 3V 0V and check if there is a short circuit Main IC Defect S5L8424 Crystal is malfunction Replace the switch and recheck Main IC Defect S5L8...

Page 14: ...e Yepp logo song Is the sound from both R and L channels normal Is the sound played intermittently or can you hear noise Do the symptoms persist when you play another file Update the firmware with the latest version and check if the symptoms persist Replace the board Thorough examina tion is required End Replace the earphones Replace jack NO NO NO NO NO NO NO NO YES YES YES YES YES YES YES YES ...

Page 15: ...h the latest version and recheck Is the condition of the solder around the Recording device nor mal Next to the MIC and LCD connector Replace the microphone and recheck Re solder and recheck Replace the switch Can you enter the REC mode when you press and hold REC A B Is the recording time progressed Can you play a recorded file properly End NO YES YES YES YES NO NO NO NO NO YES YES ...

Page 16: ...sly Can you press the buttons Replace the board Thorough examination is required Update the firmware with the latest ver sion and format the device to complete the operation Are there any foreign bodies between the button and the knob Replace the switch and recheck Remove any foreign bodies and recheck YES YES YES NO NO NO ...

Page 17: ... the removable disk End Can you connect the player and PC using the USB interface after RESET Is there an Unknown Device in the Device Manager Can you format the device in Windows Explorer Can you update the firmware through a DFU update Defect Connect and recheck Install the driver and patch and then recheck NO YES YES YES NO NO NO NO NO NO YES YES YES ...

Page 18: ...k in My Computer 2 Countermeasures A General Firmware Upgrade You can restore the system by upgrading the firmware when the player malfunctions due to corrupted files B Emergency Firmware Upgrade DFU Upgrade You can run the following procedures when the player is not recognized by a PC via USB connection due to total firmware corruption 1 Run the Serenade DFU program Install the DFU program accord...

Page 19: ...4 Click Browse and select the YP U3_DFULoader_000000 DFU file for the Manager field and select the latest version of the YP U3 BIN file for the Firmware field 3 Make a USB connection and then check if the device is recognized ...

Page 20: ... YP U3 RSC and YP U3 SET files to the System folder of the player while it is connected to the PC to update the firmware After that disconnect the player from the PC reboot the player and check if it works properly At this time if you cannot find the System folder select My Computer Tools Folder Options View select the Show hidden files and folders and Show system folder options and recheck Tip If...

Page 21: ...he folder Check if the following 3 files are in the folder The YP U3J SET file can be present instead of the YP U3 SET file 3 Connect the player to be upgraded via the USB interface to the PC 4 Back up the data saved in the player 5 Find the System folder in the player 6 Copy the YP U3 ROM file into the System folder ...

Page 22: ...onnecting message may continue for 1 to 3 minutes depending on the firmware version During that time the memory is being formatted 9 When the player is recognized by the PC copy the YP U3 SET and YP U3 RSC files to the System folder 10 Disconnect the player from the PC and turn it on Then the resource upgrade begins 11 When the upgrade is complete turn the player on again and check if it works pro...

Page 23: ...Samsung Electronics 5 1 5 Exploded View Parts List 1 1 Total Exploded View AG077 AB035 AP085 AD050 AK200 AK415 AK416 AB044 AS040 AK280 AC010 ...

Page 24: ... 04289B KNOB HOLD YP U3 PC T3 6 W12 8 L2 6 WHT 1 SA AK280 AH64 04287B KNOB PLAY YP U3 PC T5 W25 4 L11 WHT 1 SA AK415 AH64 04288B KNOB USB YP U3 PC T2 8 W9 3 L2 6 WHT 1 SA AK416 AH64 04328A KNOB USB SPRING YP U3 SWP B T0 3mm 1 SA AP085 AH61 02370A PLATE REFLECT YP U3 ABS NATURAL Cr 1 SA AS040 6003 001166 SCREW TAPTITE CH B M1 4 L4 NI PLT SWRC 3 SA FPC AH41 01012A FPC KEY PAD YP U3 1 0 6 0 2mm TOUCH...

Page 25: ... 1 SA C55 2203 005900 C CER CHIP 1000NF 80 20 10V Y5V 1 1 SA C56 2203 000254 C CER CHIP 10nF 10 16V X7R 1005 1 SA C57 2203 005383 C CER CHIP 0 0070nF 0 1pF 50V 100 1 SA C58 2203 000995 C CER CHIP 0 047nF 5 50V C0G 1005 1 SA C6 2203 002709 C CER CHIP 100nF 80 20 16V Y5V 10 1 SA C7 2203 000330 C CER CHIP 0 012nF 5 50V C0G 1005 1 SA C8 2203 002709 C CER CHIP 100nF 80 20 16V Y5V 10 1 SA C9 2203 000330...

Page 26: ...SA VAR4 1405 001093 VARISTOR 14V 20A 1x0 5x0 6mm TP 1 SA VAR5 2203 005089 C CER CHIP 0 002nF 0 25pF 50V TH TP 1 SA VAR6 1405 001093 VARISTOR 14V 20A 1x0 5x0 6mm TP 1 SA X TAL1 2801 003856 CRYSTAL SMD 0 032768MHz 20ppm 28 AC 1 SA X TAL2 2801 000102 CRYSTAL SMD 12MHz 30ppm 12pF 100o 1 SA ZD1 0406 001254 DIODE TVS UCLAMP0501P 6 V 200W S 1 SA AH99 10006B ASSY AUTO INSERT PCB YP U3 1G YP 1 SNA AH97 023...

Page 27: ... 00162B AH82 00162E RCL Existing AH92 02729B AH92 02746A A S Code AH82 00162A AH82 00162F AH82 00162B AH82 00162E SMT Existing AH92 02729B AH92 02746A A S Code AH82 00162A AH82 00162F AH82 00162B AH82 00162E SUN Existing AH92 02729B AH92 02746A A S Code AH82 00162A AH82 00162F AH82 00162B AH82 00162E TSE Existing AH92 02729B AH92 02746A A S Code AH82 00162A AH82 00162F AH82 00162B AH82 00162E XAA ...

Page 28: ...H82 00162B AH82 00162E XSH Existing AH92 02729B AH92 02746A A S Code AH82 00162A AH82 00162F AH82 00162B AH82 00162E XSJ Existing AH92 02729B AH92 02746A A S Code AH82 00162A AH82 00162F AH82 00162B AH82 00162E XSP Existing AH92 02729B AH92 02746A A S Code AH82 00162A AH82 00162F AH82 00162B AH82 00162E XSV Existing AH92 02729B AH92 02746A A S Code AH82 00162A AH82 00162F AH82 00162B AH82 00162E X...

Page 29: ...L AH82 00162H RCL Existing AH92 02729C AH92 02746B A S Code AH82 00162M AH82 00162G AH82 00162L AH82 00162H SMT Existing AH92 02729C AH92 02746B A S Code AH82 00162M AH82 00162G AH82 00162L AH82 00162H SUN Existing AH92 02729C AH92 02746B A S Code AH82 00162M AH82 00162G AH82 00162L AH82 00162H TSE Existing AH92 02729C AH92 02746B A S Code AH82 00162M AH82 00162G AH82 00162L AH82 00162H XAA Existi...

Page 30: ...162G AH82 00162L AH82 00162H XSH Existing AH92 02729C AH92 02746B A S Code AH82 00162M AH82 00162G AH82 00162L AH82 00162H XSJ Existing AH92 02729C AH92 02746B A S Code AH82 00162M AH82 00162G AH82 00162L AH82 00162H XSP Existing AH92 02729C AH92 02746B A S Code AH82 00162M AH82 00162G AH82 00162L AH82 00162H XSV Existing AH92 02729C AH92 02746B A S Code AH82 00162M AH82 00162G AH82 00162L AH82 00...

Page 31: ...e AH82 00162N AH82 00162R AH82 00162P AH82 00162S RCL Existing AH92 02746C A S Code AH82 00162N AH82 00162R AH82 00162P AH82 00162S SMT Existing A S Code AH82 00162N AH82 00162R AH82 00162P AH82 00162S SUN Existing A S Code AH82 00162N AH82 00162R AH82 00162P AH82 00162S TSE Existing A S Code AH82 00162N AH82 00162R AH82 00162P AH82 00162S XAA Existing A S Code XAC Existing A S Code XAH Existing A...

Page 32: ...Code AH82 00162N AH82 00162R AH82 00162P AH82 00162S XSH Existing A S Code AH82 00162N AH82 00162R AH82 00162P AH82 00162S XSJ Existing AH92 02729D AH92 02746C A S Code AH82 00162N AH82 00162R AH82 00162P AH82 00162S XSP Existing A S Code AH82 00162N AH82 00162R AH82 00162P AH82 00162S XSV Existing A S Code AH82 00162N AH82 00162R AH82 00162P AH82 00162S XTC Existing A S Code AH82 00162N AH82 0016...

Page 33: ...E Existing A S Code XAA Existing AH92 02746A AH92 02729C AH92 02746B A S Code AH82 00162C AH82 00162D AH82 00162K AH82 00162J XAC Existing AH92 02746A AH92 02729C AH92 02746B A S Code AH82 00162C AH82 00162D AH82 00162K AH82 00162J XAH Existing A S Code XAP Existing A S Code XAX Existing A S Code XAZ Existing A S Code XBG Existing A S Code XEE Existing AH92 02731B AH92 02747A AH92 02731C AH92 0274...

Page 34: ...2747B A S Code AH82 00162C AH82 00162D AH82 00162K AH82 00162J XER Existing A S Code XET Existing AH92 02731B AH92 02747A AH92 02731C AH92 02747B A S Code AH82 00162C AH82 00162D AH82 00162K AH82 00162J XEU Existing AH92 02731B AH92 02747A AH92 02747B A S Code AH82 00162C AH82 00162D AH82 00162K AH82 00162J XFO Existing A S Code XME Existing A S Code XSA Existing AH92 02729B AH92 02746A AH92 02729...

Page 35: ...ting A S Code RCL Existing A S Code SMT Existing A S Code SUN Existing A S Code TSE Existing A S Code XAA Existing A S Code AH82 00162Q AH82 00162T XAC Existing A S Code AH82 00162Q AH82 00162T XAH Existing A S Code XAP Existing A S Code XAX Existing A S Code XAZ Existing A S Code XBG Existing A S Code XEE Existing AH92 02747C A S Code AH82 00162Q AH82 00162T YP U3 AS Code Table 9 ...

Page 36: ... AH82 00162Q AH82 00162T XER Existing A S Code XET Existing AH92 02731E AH92 02747C A S Code AH82 00162Q AH82 00162T XEU Existing AH92 02731E AH92 02747C A S Code AH82 00162Q AH82 00162T XFO Existing A S Code XME Existing A S Code XSA Existing A S Code AH82 00162Q AH82 00162T XSE Existing A S Code XSH Existing A S Code XSJ Existing A S Code XSP Existing A S Code XSV Existing A S Code XTC Existing ...

Page 37: ...chanical Top CON2 Designed so that the connector cannot be installed the wrong way round mechanically 1 6 1 8 USB FPCB USB PCB CON 2 CON3 Designed so that the connector cannot be installed the wrong way round mechanically and are marked CON 3 Battery CON4 Designed so that the connector cannot be installed the wrong way round mechanically 1 2 1 18 LCD ...

Page 38: ...6 2 Samsung Electronics 6 2 PCB Diagram 1 Circuit Board Layout and Functions Bottom ...

Page 39: ...Samsung Electronics 6 3 2 Circuit Board Layout and Functions Top ...

Page 40: ...s supplied from the External IN 3 7V Battery 5V USB the PMU within the Main IC supplies 1 2V of Core Voltage for the Main IC and IO Voltage of 3 0V for the surrounding circuits NAND Memory FM Tuner Touch IC etc 2 The 14V necessary for OLED operation is supplied by the MP1541 At this time the MP1541only operates when the Enable Ctl signal from Main IC is High ...

Page 41: ...7 2 Samsung Electronics This Document can not be used without Samsung s authorization 7 2 Schematic Diagram 1 Main ...

Page 42: ...Samsung Electronics 7 3 This Document can not be used without Samsung s authorization 2 Display ...

Page 43: ...7 4 Samsung Electronics This Document can not be used without Samsung s authorization 3 Audio output Part ...

Page 44: ...Samsung Electronics 7 5 This Document can not be used without Samsung s authorization 4 Key Input Part ...

Page 45: ...7 6 Samsung Electronics This Document can not be used without Samsung s authorization 5 FM ...

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