Denon DNP-720AE Service Manual
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Denon DNP-720AE Service Manual

Network audio player
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e
DNP-720AE
• For purposes of improvement, specifications and design are subject to change without notice.
• Please use this service manual with referring to the operating instructions without fail.
• Some illustrations using in this service manual are slightly different from the actual set.
S0426-0V05DM/DG1201
SERVICE MANUAL
MODEL
NETWORK AUDIO PLAYER
Copyright 2012 D&M Holdings Inc. All rights reserved.
WARNING: Violators will be prosecuted to the maximum extent possible.
JP
E3
E2
P P
s
e
D&M Holdings Inc.
Ver. 5
Please refer to the
MODIFICATION NOTICE.
EK
EA
E1
E1K E1C

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  • Page 1 MODIFICATION NOTICE. SERVICE MANUAL MODEL E1K E1C DNP-720AE NETWORK AUDIO PLAYER • For purposes of improvement, specifications and design are subject to change without notice. • Please use this service manual with referring to the operating instructions without fail. • Some illustrations using in this service manual are slightly different from the actual set.

  • Page 2: Table Of Contents

    CONTENTS SAFETY PRECAUTIONS ............3 NOTE FOR SCHEMATIC DIAGRAM .........4 TECHNICAL SPECIFICATIONS ..........5 DIMENSION ................5 CAUTIONS IN SERVICING ............6 Firmware update ..............6 Initializing Network Audio Player (Factory Rerset) ....6 DISASSEMBLY ................7 1. FRONT PANEL ASSY ............8 2. PCB MAIN ................9 3. SMPS PCB UNIT..............9 4.

  • Page 3: Safety Precautions

    SAFETY PRECAUTIONS The following items should be checked for continued protection of the customer and the service technician. LEAKAGE CURRENT CHECK Before returning the set to the customer, be sure to carry out either (1) a leakage current check or (2) a line to chassis resistance check.

  • Page 4: Note For Schematic Diagram

    NOTE FOR SCHEMATIC DIAGRAM WARNING: Parts indicated by the z mark have critical characteristics. Use ONLY replacement parts recommended by the manufacturer. CAUTION: Before returning the set to the customer, be sure to carry out either (1) a leakage current check or (2) a line to chassis resistance check. If the leakage current exceeds 0.5 milliamps, or if the resistance from chassis to either side of the power cord is less than 460 kohms, the set is defective.

  • Page 5: Technical Specifications

    TECHNICAL SPECIFICATIONS n Digital audio section n Wireless LAN • Analog output Network type (wireless LAN standards) : Conforming to IEEE 802.11b Conforming to IEEE 802.11g Channels : 2 channels (Conforming to Wi-Fi®)z Playable frequency range : 2 Hz – 96 kHz Transfer rate : DS-SS: 11 / 5.5 / 1 Mbps (Automatic switching) Playable frequency response : 2 Hz –...

  • Page 6: Cautions In Servicing

    CAUTIONS IN SERVICING Firmware update • When you replace the IC113, you need software updates. Refer to "After replacing IC113". • When you replace the WLAN MODULE, you need software updates. And MAC Address seal replacement is required. Refer to "After replacing WLAN MODULE". Initializing Network Audio Player (Factory Rerset) Network Audio Player initialization should be performed when the μcom, peripheral parts of μcom, and WLAN MODULE are replaced.

  • Page 7: Disassembly

    DISASSEMBLY • Disassemble in order of the arrow in the following figure. • In the case of the re-assembling, assemble it in order of the reverse of the following flow. • In the case of the re-assembling, observe "attention of assembling". •...

  • Page 8: Front Panel Assy

    [Precautions for Disassembly] When disassembling, connect the F102 and GND with an ground lead, and discharge for approximately 10 seconds before starting the disassembly. ground lead F102 1. FRONT PANEL ASSY Proceeding : TOP COVER FRONT PANEL ASSY → (1) Remove the screws. View from the bottom (2) Cut the wire clamp band, then disconnect the connector wire and FFC cable.

  • Page 9: Pcb Main

    2. PCB MAIN Proceeding : TOP COVER PCB MAIN → (1) Remove the screws. Shooting direction: A (2) Disconnect the connector wire and FFC cables, then remove the screws . FFC cable STYLE PIN : Loosen FFC cable STYLE PIN : Loosen CP101 CON2 3.

  • Page 10: Tuner Pack

    4. TUNER PACK Proceeding : TOP COVER TUNER PACK → (1) Remove the screws. Shooting direction: A (2) Disconnect the FFC cable. FFC cable TUNER PACK 5. WIFI MODULE Proceeding : TOP COVER WIFI MODULE → (1) Remove the connector wire, then remove the SUPPORTER, SNAP RIVET and STOPPER. CON2 SNAP REVET STYLE PIN : Loosen...

  • Page 11: Special Mode

    SPECIAL MODE Special mode setting button Plug AC cord into power outlet while pressing buttons A and B. Each button continue to press until the turning on ON/STANDBY LED. Mode Button A Button B Contents Initialization mode (Factory Reset) SOURCE CURSOR f Initializing.

  • Page 12: Initialization Mode (Factory Reset)

    1. Initialization mode (Factory Reset) Backup data initialization is carried out. Refer to Initialization Items. After initialization, move on to nomal mode. CAUTION Version information (such as rewriting failed log) Clear. Clear the history of protection. Startup display All lights display (2 seconds) - All off display (2 seconds) "Factory Reset"...

  • Page 13: Version Display

    3. Version display Menu items appear in the Add Version.Otherwise, normal operation. To exit this mode, unplug the power cord. Startup display "Version" displayed for 5 seconds. How to Display Version Select the Menu, and press ENTER button. [E2 model] Favorite Internet Radio Music Server...

  • Page 14: Product Mode 1

    Press CURSOR f . The version of the boot loader(network-μ Processor). Press CURSOR f . The version of the image(network-μ Processor). 4. Product Mode 1 Startup display "Product Mode1" displayed for 5 seconds. Tested during production to perform the following settings automatically. Tunner Preset, WiFi.

  • Page 15: Protection History Display Mode

    6. Protection history display mode Startup display "Detect Protection" displayed for 5 seconds. To exit this mode, unplug the power cord. No history found Protection history is reset. When the Cursor d button is pressed for over 5 seconds while the protection history is displayed, the count value is reset.

  • Page 16: Update Mode (By Dfw)

    • Firm error codes at the main microprocessor rewritten. Error Code Details of Error code Firm Info response acquisition Time Out (Main rewrite Firmware recived failure (Time Out)) Firm Info response acquisition recived error (Main rewrite Firmware recived failure (Error) Firm Info response acquisition recived error (Main rewirte Firmware recived data incorrect (Check Sum Error)) Rewrite failure (Block Erase failued before Main rewriting ) Rewrite failure (Block Write failued before Main rewriting)

  • Page 17: When The Microprocessor Is Replaced With A New One

    WHEN THE MICROPROCESSOR IS REPLACED WITH A NEW ONE When the U-PRO (Microprocessor) or the Flash ROM is replaced, confirm the following. After PWB Name Ref. No. Description Remark replaced MAIN IC113 R5F56108VNFP After replacing A : Mask ROM (With software). No need for write-in of software to the microprocessor. B : Flash ROM (With software).
  • Page 18 Even with a broadband connection to the Internet, approximately 1 hour is required for the updating procedure to be completed. Once updating starts, normal operations on the DNP-720AE cannot be performed until updating is completed. Also, setting items may be initialized.

  • Page 19: Trouble Shooting

    TROUBLE SHOOTING 1. OLED dosen't light Check the voltage of each part. MAIN B'D q Check the Power Supply Voltages for OLED. 1. [CP106] : 26pin DISPLAY B'D 2. [IC106] : 1, 2pin • +3.3V_D1, [CP402] : 27pin SMPS B'D 3.
  • Page 20 2.2. Cannot connect to network Is First Setup correct? Set First Setup properly. Check the Power Supply Voltages for DAC. Set the IP address and other parameters properly. For a fixed MAIN B'D IP setting, check whether the IP address is redundant with •...

  • Page 21: No Sound, Noise Generated

    3. No Sound, Noise generated 3.1. Tuner Check the voltage of each part. MAIN B'D 1. [IC117] : 4pin Check the Power Supply Voltages for AM/FM TUNER. 2. [Q112] : 2pin (base) ("H" : OK) MAIN B'D 3. [IC100] : 1pin •...
  • Page 22 3.2. Optical out Check the voltage of each part. Check the Power Supply Voltages for Optical. MAIN B'D MAIN B'D 1. [IC106] : 1, 2pin • +3.3V_D1, [IC110] : 5pin SMPS B'D 2. [J1] : 7pin Check the waveform of each part. Check the audio serial data from Optical.
  • Page 23 3.4. Ethernet Is First Setup correct? Set First Setup properly. Check the audio serial data from DIR. Check the waveform of each part. MAIN B'D MAIN B'D • CX870_SPDIF, [IC112] : 5pin 1. [U100] : 32pin...
  • Page 24 3.5. Common part Check the voltage of each part. Check the Power Supply Voltages for DIR. MAIN B'D MAIN B'D 1. [IC106] : 1, 2pin • +3.3V_D1, [IC112] : 7,11,14,19,26,30,43pin SMPS B'D 2. [J1] : 7pin Check the Oscillation waveform. Check the Soldering.

  • Page 25: Clock Flow & Waveform In Digital Block

    CLOCK FLOW & WAVEFORM IN DIGITAL BLOCK q DAC input waveform Block Diagram 44.1kHz SMPS UNIT -12V_MUTE NJM7809FA +3.3V_D1 +12V_Audio +9V_A TUNER Power Ch1:MCK FET SW +16V Pioneer FET SW +18V_OLED OLED +16V OLED DISPLAY Disp PCB +5V_SMPS 1 MCLK Ch2:LRCK +3.3V_D1 +3.3V...

  • Page 26: Block Diagram

    BLOCK DIAGRAM SMPS UNIT -12V_MUTE NJM7809FA +12V_Audio +9V_A TUNER Power FET SW +16V Pioneer FET SW +18V_OLED OLED +16V OLED DISPLAY Disp PCB +5V_SMPS 1 +3.3V_D1 +3.3V DATA CLOC P.down NJM2831F33 +3.3V_CPU +3.3V A_MUTE System μ-com REMOTE S_MUTE Renesas DAC_DEM RX610 Key PCB R5F56108VNFP...

  • Page 27: Power Block Diagram

    POWER BLOCK DIAGRAM AC IN +16V +18V_OLED OLED with SW OLED_Power_Cont +3.3V_D1 +3.3V OLED_3.3V SUB_Power_Cont +5V_SMPS_1 LC89058W A/D Con AK5358 +3.3V_CPU MAIN CPU +3.3V R5F56108VNFP NJM2831F33 REMOTE +5V_SMPS_2 +5V_USB USB_VBUS VBUS_Power_Cont +5V_NET +3.3V DM870 +3.3V Ether_Power_Cont +1.2V DM870 +1.2V GND_D +1.9V Wi-Fi +1.9V +12V_A...

  • Page 28: Printed Wiring Boards

    PRINTED WIRING BOARDS MAIN (COMPONENT SIDE) C230 D111 R282 D112 J100 D115 D110 J101 C252 D116 C112 C111 C234 J102 C231 C110 C232 C241 R301 C233 R300 R296 C245 R302 R297 U100 C262 BONDING MTZ5.1B D113 OLED_18V OLED_18V +3.3V_D1 R324 +3.3V CPU C106 R323...
  • Page 29 MAIN (FOIL SIDE) R146 C213 R145 C163 C179 C174 R217 R312 R228 R216 C288 C287 C271 C188 C270 R314 C187 R160 R313 C117 C285 C186 C286 R229 R243 C116 R159 R156 C272 C273 R210 C274 R211 C175 C177 C176 R212 R213 C146 C137...

  • Page 30: Front

    FRONT (COMPONENT SIDE) (COMPONENT SIDE) C433 R418 C434 R414 R415 (6.3*5) CP401 R420 R419 R416 GND_D R429 GND_D 5. GND_D KEY3 4. GND_D KEY2 3. KEY3 R422 2. KEY2 KEY1 R421 1. KEY1 CP403 DNP-F107X ONLY LD401 DNP-F107X ONLY C407 (4*5) S409 SOURCE...

  • Page 31: Schematic Diagrams

    EER2828_12P 6.8uH W1 Jumper FR104 2200uF/25V(105¡É) 68uF/450V 470uF/25V 56k/2W 103/630V 5.6k D4 FR104 22uH DB105G 100uF/25V FSFM260N 100uF/25V UF4007 Vstr DRAIN Jumper DRAIN W3 Jumper CONNECTOR 11P DRAIN SQE2424_4p 1.+12V 2.AGND 100uF/35V 100uF/35V 3.-12V FR104 4.AGND 5.OLED +18V 2.7ohm/2W FR104 22uH 6.DGND 7.+5V (CPU)

  • Page 32: Main Unit (1/2)

    In this space, please use the lead parts CN100 for all capacitors and the resistances. D100 D101 1N4148WS 1N4148WS +12V_A IC101 IC100 D102 +12V_A 1N4007 IL1117-5.0 KIA7809API GND_A -12V_A -12V_A GND_A +18V_OLED +18V_OLED IC108 GND_D L ch +5V_SMPS1 GND_A W100 GND_D C127 M3_SIDE...

  • Page 33: Main Unit (2/2)

    FROM MAIN UNIT TO MAIN UNIT C220 C219 100/25V(ENLA) 100/25V(ENLA) C222 C221 C223 100N-K 100N-K 100N-K C225 C224 C226 10N-K 10N-K 10N-K C227 C228 1N-J 1N-J GND_D IC118 R144 TPC6111 R283 E_P_CONT U100 Q115 KRC102S E_RXDMOEI R330 E_TXDMIEO CP108 1.0-16-7PB-2 R284 R285 DM_VBUS...

  • Page 34: Front Unit

    FROM MAIN PART OLED UNIT CP401 RMC400 29P_AN_DIP GP1UE271XKVF +3.3V_CPU_ GND_D_ REMOTE_ C417100N-K C418 10N-K R403 C419100N-K L401 BD221JT CONT R406 C412 1N-K CP400 CN400 R416 C442 1N-K C446 LED_GREEN C441 10N-K LED_RED C440 100N-K GND_D POWER SW C445 +3.3V KRC111S C407 10/35(5*5)

  • Page 35: Wiring Diagram

    WIRING DIAGRAM Main PCB Pin Jack double SMPS UNIT Tuner CN100 Pack CX870 module single AK4424 4-layer 11P_PH Type 1. +12V CN100 2. AGND 3. -12V 4. AGND 2P_VH Type 5. OLED +18V 6. DGND LC89058 7. +5V (CPU) 8. DGND CP101 9.

  • Page 36: Exploded View

    EXPLODED VIEW S6X2 S4X10 S2X4 model S2X5 S2X6 S2X5 S2X2 17-1 S2X4 17-2 S3X6 WARNING: Parts marked with this symbol have critical : Cut from the front panel characteristics. Use ONLY replacement parts recommended by the manufacturer.  印の部分は安全を維持するために重要 な部品です。従って交換時は必ず指定の 部品を使用してください。...

  • Page 37: Parts List Of Exploded View

    PARTS LIST OF EXPLODED VIEW z Parts indicated by "nsp" on this table cannot be supplied. z P.W.B. ASS'Y indicated by "nsp" on this table cannot be supplied. When repairing the P.W.B. ASS'Y, check the board parts list and order replacement parts. z Parts indicated by the "...
  • Page 38 Ref. No. Part No. Part Name Remarks Q'ty New 23 963189009030S TUNER PACK E903104180020S 23 963189009040S TUNER PACK E903004080020S USB GND PLATE 4470212246000S OLED PLATE 4470212256000S OLED HOLDER 4320211121000S OLED SHIELD COVER 3070210666000S USB PNAEL GND PLATE for USB 4470212326000S SPACER DCB-15 for SMPS pcb 4300210281000S...

  • Page 39: Packing View

    PACKING VIEW EK CORD insertion position E2 model E2 model SP model PARTS LIST OF PACKING & ACCESSORIES z Parts indicated by "nsp" on this table cannot be supplied. z Parts indicated by the " ★ " mark are not illustrated in the exploded view. z The parts listed below are only for maintenance.
  • Page 40 Ref. No. Part No. Part Name Remarks Q'ty New WARRANTEE CARD 5727000003003S 8 00D9600187308 FM ANTENNA WIRE E605010140010S 9 90M-ZA000260R AM LOOP ANTENNA E601019000010S 10 963116100050S WLAN ANTENNA E600240010020S 11 00D9630267609 RCA CORD L063122020010S 12 963611012960S AC COED (E2) L068250251800S 12 963611500450S AC COED (E3) L068125071810S POLY BAG...

  • Page 41: Semiconductors

    SEMICONDUCTORS Only major semiconductors are shown. General semiconductors etc. are omitted from list. The semiconductors which have a detailed drawing in a schematic diagram are omitted from list. 1. IC's R5F56108VNFP (MAINI : IC113) RX610 Group PLQP0144KA-A (144-pin LQFP) (Top view)
  • Page 42 R5F56108VNFP Terminal Functions STANDBY MODE Port Name NOTE Network STBY STBY STBY 1 TDI EMULATOR connection 2 TMS EMULATOR connection 3 TEST1 Board check mode 4 NC 5 AVSS 6 TRST# EMULATOR connection 7 RXD MI232O 232C rewriting terminal DFW 8 TXD MO232I 232C rewriting terminal DFW 9 P.Down...
  • Page 43 STANDBY MODE Port Name Network NOTE STBY STBY STBY 65 TEST2 Board check mode 66 NC 67 DIR_INT DIR control 68 DIR_RST DIR RESET 69 NC 70 NC 71 NC 72 NC 73 NC 74 VCC +3.3V_CPU 75 NC 76 VSS 77 NC 78 NC 79 NC...
  • Page 44 STANDBY MODE Port Name Network NOTE STBY STBY STBY 130 VSS 131 LED_GREEN GREEN LED Eco-STBY : Low 132 VCC +3.3V_CPU 133 MODEL MODEL 134 REGION REGION 135 DC Protect 1 DC protect detection circuit 1 136 DC Protect 2 DC protect detection circuit 2 137 REMOTE REMOTE IN...
  • Page 45 AK4424ET-E2 (MAIN : IC103) AK4424ET-E2 Block diagram...
  • Page 46 K4424ET-E2 Pin function...
  • Page 47 AK5358BET-E2 (MAIN : IC115) AK5358BET-E2 Block diagram...
  • Page 48 AK5358BET-E2 Pin function...
  • Page 49 LC89058W-E (MAIN : IC12) 35 34 33 32 31 30 29 28 27 26 25 SDIN SLRCK SBCK RDATA RLRCK XMODE LC89058W-E DV DD DGND DV DD DGND RBCK GPIO0 RMCK GPIO1 AGND GPIO2 GPIO3 AV DD RXOUT2 * : Pull-down resistor internal at no selection Top view Pin Functions Pin Functions...
  • Page 50 Continued from preceding page. DGND Digital GND DV DD Digital power supply (3.3V) XMCK Oscillation amplifier clock output pin XOUT Output pin connected to the resonator External clock input pin, connected to the resonator (12.288MHz/24.576MHz) DV DD Digital power supply DGND Digital GND MOUT...
  • Page 51 Block Diagram LC89058W-E Block diagram MOUT AUDIO XMODE Fs calculator GPIO0 Microcontroller GPIO1 GPIO2 Cbit, Pc GPIO3 RXOUT2 RXOUT1 RERR Demodulation & SDIN Lock detect Data Input Selector RDATA Selector RMCK RBCK Clock Clock Selector RLRCK Divider SBCK Oscillation XOUT Amplifier SLRCK XMCK...

  • Page 52: Fl Display

    2. FL DISPLAY OLED (MXS4035A) (EXPLODED : Ref. No. 34)

  • Page 53: Parts List Of P.c.b. Unit

    PARTS LIST OF P.C.B. UNIT z Parts indicated by "nsp" on this table cannot be supplied. z The parts listed below are only for maintenance. Therefore they might differ from the parts used in the unit in appearances or dimensions. Note: The symbols in the column "Remarks"...
  • Page 54 Ref. No. Part No. Part Name Remarks Q'ty R137 963121500370S R,FIXED 1WJ-91 N113135691020S CAPACITORS GROUP C100 C,CERAMIC 0.001UF-J/50V D010102167160S C101 C,CERAMIC 0.01UF-K/50V D010103777160S C102 C,CERAMIC 0.1UF-K/50V D011104577160S C103 C,CERAMIC 0.001UF-J/50V D010102167160S C104 C,CERAMIC 0.01UF-K/50V D010103777160S C105 C,CERAMIC 0.1UF-K/50V D011104577160S C106-109 00D2544694909 CE04W1E101MT(RF0) D040101084330S C110...
  • Page 55 Ref. No. Part No. Part Name Remarks Q'ty C185 C,CERAMIC 0.022UF-K/25V D011223777160S C186 C,CERAMIC 0.1UF-K/50V D011104577160S C187 C,CERAMIC 0.001UF-J/50V D010102167160S C188,189 C,CERAMIC T.C COG12PF-J/50V D010120167160S C190 C,CERAMIC 0.1UF-K/50V D011104577160S C191 00D9630234205 C,ELECT 10UF-M/50V D040100087070S C192 C,CERAMIC 0.001UF-J/50V D010102167160S C193 00D9630293602 C,ELECT 1UF-M/50V (Pb Free) D040010087150S C194 C,CERAMIC 0.01UF-K/50V...
  • Page 56 Ref. No. Part No. Part Name Remarks Q'ty C283 C,CERAMIC 0.001UF-J/50V D010102167160S C284,285 C,CERAMIC 0.01UF-K/50V D010103777160S C286 C,CERAMIC 0.001UF-J/50V D010102167160S C287 C,CERAMIC 0.01UF-K/50V D010103777160S C288 C,CERAMIC 0.001UF-J/50V D010102167160S C289 C,CERAMIC 0.01UF-K/50V D010103777160S C290 C,CERAMIC 0.001UF-J/50V D010102167160S C291 C,CERAMIC 0.01UF-K/50V D010103777160S C292 C,CERAMIC 0.001UF-J/50V D010102167160S...
  • Page 57 Ref. No. Part No. Part Name Remarks Q'ty FG5-8 TERMINAL EARTH 3790040886000S JACK100 90M-YT005150R TER,RCA 2PIN G601206BFG10YS JACK101 00D9630113009 MODULE JST1165 E100116500030S JACK102 963643100130S JACK,MODULAR RJ45 G4060RJ450120S L100 CHIP BEADS(18PG121) +1608 D340160831210S L101 00D9630126504 BFS 3550R2F 3.5*5.0 R.REEL (5MM) 7610035500030S L102 CHIP BEADS(18PG121) +1608 D340160831210S...

  • Page 58: Pcb Key Ass'y

    PCB KEY ASS'Y Ref. No. Part No. Part Name Remarks Q'ty SEMICONDUCTORS GROUP D400 963202500200S D,ZENER PG05GBUSC/TVS K06605R010010S CAPACITORS GROUP C402-404 C,CERAMIC 0.1UF-K/50V D011104577160S C408 C,CERAMIC 1000PF-K/50V D011102777160S C409 C,CERAMIC 0.01UF-Z/50V D011103597160S C410,411 C,CERAMIC 0.1UF-K/50V D011104577160S C413 C,ELECT 220UF-M/6.3V D040221081070S C430 C,CERAMIC 0.1UF-K/50V D011104577160S...

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