Service Manual
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Troubleshooting 5. Block Diagram 7. Precautions 2. Specifications 3. Exploded View and Parts List 6. Schematic Diagrams JUN. 2001 Printed in Korea AH68-00759A SERVICE Manual DIGITAL AUDIO PLAYER CONTENTS 1. DIGITAL AUDIO PLAYER YP-NDU ELECTRONICS © Samsung Electronics Co., Ltd. Location of Controls 4. PCB Diagrams 8.
Troubleshooting 5. Block Diagram 7. Precautions 2. Specifications 3. Exploded View and Parts List 6. Schematic Diagrams JUN. 2001 Printed in Korea AH68-00759A SERVICE Manual DIGITAL AUDIO PLAYER CONTENTS 1. DIGITAL AUDIO PLAYER YP-NDU ELECTRONICS © Samsung Electronics Co., Ltd. Location of Controls 4. PCB Diagrams 8.
Service Manual
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... shorted together by touching a known earth ground. these can generate enough static electricity to the chassis or circuit or assembly into which the device will reduce the occurrence of electrostatic charge. 4. Some semiconductor ("solid state")devices are called Electrostatically Sensitive Devices(ESDs); The following techniques will be installed. 9. Minimize body motions when handling unpackaged replacement ESDs. Use only a grounded...
... shorted together by touching a known earth ground. these can generate enough static electricity to the chassis or circuit or assembly into which the device will reduce the occurrence of electrostatic charge. 4. Some semiconductor ("solid state")devices are called Electrostatically Sensitive Devices(ESDs); The following techniques will be installed. 9. Minimize body motions when handling unpackaged replacement ESDs. Use only a grounded...
Service Manual
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without batteries) Plastic /Aluminum Up to 1.5Mbps SmartMedia Card Socket 90dB(with alkaline batteries) 70x88x21mm(2.75"x3.46"x0.83")/76g(2.68 Oz; Specifications Model Processor Memory Capacity Power Battery Dimensions (W x H x D) Case File Transmission Speed Memory Socket Noise Ratio Earphone Output Power Output Frequency Range YP-NDU 12MHz, 16bit CISC Built-in Memory 32MB/64MB 3V Two AAA-Size/8-hr or longer playing time (with A filter) 7mW 20Hz-20KHz Samsung Electronics 2-1 2.
without batteries) Plastic /Aluminum Up to 1.5Mbps SmartMedia Card Socket 90dB(with alkaline batteries) 70x88x21mm(2.75"x3.46"x0.83")/76g(2.68 Oz; Specifications Model Processor Memory Capacity Power Battery Dimensions (W x H x D) Case File Transmission Speed Memory Socket Noise Ratio Earphone Output Power Output Frequency Range YP-NDU 12MHz, 16bit CISC Built-in Memory 32MB/64MB 3V Two AAA-Size/8-hr or longer playing time (with A filter) 7mW 20Hz-20KHz Samsung Electronics 2-1 2.
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3. Location of Contols 3-1 Front Panel 3D button LCD Voice Recorder button Repeat button Mode/Section repeat button Erase button 3-2 Rear Panel Samsung Electronics Stop/Power Off button Power On /Play /Pause button Volume control button FF button Equalizer button REW button Microphone Connection cable terminal SmartMedia Card Slot Push open button Earphone jack Eject Hold switch Battery case 3-1
3. Location of Contols 3-1 Front Panel 3D button LCD Voice Recorder button Repeat button Mode/Section repeat button Erase button 3-2 Rear Panel Samsung Electronics Stop/Power Off button Power On /Play /Pause button Volume control button FF button Equalizer button REW button Microphone Connection cable terminal SmartMedia Card Slot Push open button Earphone jack Eject Hold switch Battery case 3-1
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Location of Controls 3-3 Remote Controller Reverse button Forward button Hold Switch LCD Panel Power ON/Play/Pause Volume control button Stop/Power Off button EQ/REP button Section repeat button (A B) Headphone/ Earphone port 3-4 FM Remote Controller REW button LCD panel EQ/REP button Mode button Front Power ON/Play/Pause button FF button Volume control button Section repeat button (A B) Stop/Power OFF button Rear Hold switch Belt Clip 3-2 Samsung Electronics
Location of Controls 3-3 Remote Controller Reverse button Forward button Hold Switch LCD Panel Power ON/Play/Pause Volume control button Stop/Power Off button EQ/REP button Section repeat button (A B) Headphone/ Earphone port 3-4 FM Remote Controller REW button LCD panel EQ/REP button Mode button Front Power ON/Play/Pause button FF button Volume control button Section repeat button (A B) Stop/Power OFF button Rear Hold switch Belt Clip 3-2 Samsung Electronics
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... - Faulty Flash Memory - Cold soldering on switch - Open PCB pattern - Check TP1, TP2 - Faulty J6 - Open / Short test of memory - Cold soldering - Troubleshooting Symptoms Possible Causes Check Point Action No LCD No Power Faulty LCD - Check between U2 and memory Soldering chip (smart media card socket) Replace Flash Memory - Mechanical parts - U1 Pin 17 Soldering Replace Switch Replace remote control Samsung Electronics 4-1 J1 PIn 1 (3V) - Mechanical parts Soldering Replace Switch Replace main board...
... - Faulty Flash Memory - Cold soldering on switch - Open PCB pattern - Check TP1, TP2 - Faulty J6 - Open / Short test of memory - Cold soldering - Troubleshooting Symptoms Possible Causes Check Point Action No LCD No Power Faulty LCD - Check between U2 and memory Soldering chip (smart media card socket) Replace Flash Memory - Mechanical parts - U1 Pin 17 Soldering Replace Switch Replace remote control Samsung Electronics 4-1 J1 PIn 1 (3V) - Mechanical parts Soldering Replace Switch Replace main board...
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Troubleshooting No Recording Check Vcc3, Vcc4, Vcc5 >2.8V YES Check C66 Analog Signal YES Check TP6 Analog Signal YES NO Check TP3, 3MHz YES Check U14 -11,12,13 Digital Signal YES Check TP4>2.8V NO if TP4
Troubleshooting No Recording Check Vcc3, Vcc4, Vcc5 >2.8V YES Check C66 Analog Signal YES Check TP6 Analog Signal YES NO Check TP3, 3MHz YES Check U14 -11,12,13 Digital Signal YES Check TP4>2.8V NO if TP4
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No LCD Display Check YES Power On NO Check D3-1 NO >2.8V YES Check NO Y1(12MHz) YES Check between con7 and U1-96,97,98,99 Troubleshooting Check LCD Check KEY S1 Replace Main Board Samsung Electronics 4-3
No LCD Display Check YES Power On NO Check D3-1 NO >2.8V YES Check NO Y1(12MHz) YES Check between con7 and U1-96,97,98,99 Troubleshooting Check LCD Check KEY S1 Replace Main Board Samsung Electronics 4-3
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Troubleshooting No USB controller when USB cable connected Check USB Cable NO (Connect message) YES Check Y3 NO 6MHz YES U17 -15,16 NO
Troubleshooting No USB controller when USB cable connected Check USB Cable NO (Connect message) YES Check Y3 NO 6MHz YES U17 -15,16 NO
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Troubleshooting Play check (Play 1KHz 128Kbps) Check Y2, 14.725 YES Check U5-23,24,25 Digital Signal YES Check U5 37, 41 Signal Signal (1KHz) YES Check Phone Jack YES Play NO(Replace Y2) Replace Y2 Check Y2 and 14.725 NO YES (Replace U5) NO (Replace U5) Replace Sub Board NO Replace Sub Board NO Replace Sub Board Samsung Electronics 4-5
Troubleshooting Play check (Play 1KHz 128Kbps) Check Y2, 14.725 YES Check U5-23,24,25 Digital Signal YES Check U5 37, 41 Signal Signal (1KHz) YES Check Phone Jack YES Play NO(Replace Y2) Replace Y2 Check Y2 and 14.725 NO YES (Replace U5) NO (Replace U5) Replace Sub Board NO Replace Sub Board NO Replace Sub Board Samsung Electronics 4-5
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Troubleshooting Display Invalid FLS Check U1 & J7 between NO U1-51~58 and J7-2~9 YES Check J9 & U9,U10 NO between J9,2~9 and U9,10-29~32, 41~44 YES Replace Sub Board Replace Main Board Check Cold soldering J9, U9, U10 4-6 Samsung Electronics
Troubleshooting Display Invalid FLS Check U1 & J7 between NO U1-51~58 and J7-2~9 YES Check J9 & U9,U10 NO between J9,2~9 and U9,10-29~32, 41~44 YES Replace Sub Board Replace Main Board Check Cold soldering J9, U9, U10 4-6 Samsung Electronics
Service Manual
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... Exploded View and Parts List ∏ Ø ˝ ' ¨ Ô ˇ " ˆ ´ Œ Ò Ú Æ ı ˜ ¯ Loca. Specification ASSY-TOP;-,YP-NDU,USB KNOB-4;YP-ND,ABS,-,-,-,1,-,Cr-PLATING ASSY-BOTTOM;ASSY,YP-NDU,USB COVER-BATTERY;YP-ND,ABS,SILVER,-,-,1,-,C ASSY PCB-MICOM;YP-NDU(EUROPE2.0), MIC(...REMOCON;YP-NE/ND/MF,SAMSUNG,56*24*24mm REMOCON;YR-10FS,SAMSUNG,FM Tuner,uPD75 REMOCON-FM;YR-10FS,SAMSUNG,55mm,V850e,9e ASSY-BELT CLIP;ASSY,YP-NDU,BAG ACCESSORY;YP-ND Series,PANDA SUEDE,3 CABLE FORM;C17-004-6436E,YP-NDU,4P,1300m SPEAKER SYSTEM;YP-ND/...
... Exploded View and Parts List ∏ Ø ˝ ' ¨ Ô ˇ " ˆ ´ Œ Ò Ú Æ ı ˜ ¯ Loca. Specification ASSY-TOP;-,YP-NDU,USB KNOB-4;YP-ND,ABS,-,-,-,1,-,Cr-PLATING ASSY-BOTTOM;ASSY,YP-NDU,USB COVER-BATTERY;YP-ND,ABS,SILVER,-,-,1,-,C ASSY PCB-MICOM;YP-NDU(EUROPE2.0), MIC(...REMOCON;YP-NE/ND/MF,SAMSUNG,56*24*24mm REMOCON;YR-10FS,SAMSUNG,FM Tuner,uPD75 REMOCON-FM;YR-10FS,SAMSUNG,55mm,V850e,9e ASSY-BELT CLIP;ASSY,YP-NDU,BAG ACCESSORY;YP-ND Series,PANDA SUEDE,3 CABLE FORM;C17-004-6436E,YP-NDU,4P,1300m SPEAKER SYSTEM;YP-ND/...