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Denon PMA-720AE Service Manual

Integrated stereo amplifier.
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PMA-720AE
PMA-520AE
• 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.
SERVICE MANUAL
MODEL
INTEGRATED STEREO AMPLIFIER
JP
E3
E2
P
P
e
D&M Holdings Inc.
Ver. 14
Please refer to the
MODIFICATION NOTICE.
EK
EA
E1C E1K
P
P
CI

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Table of Contents

   Also See for Denon PMA-720AE

   Summary of Contents for Denon PMA-720AE

  • Page 1 MODIFICATION NOTICE. SERVICE MANUAL MODEL E1C E1K PMA-720AE PMA-520AE INTEGRATED STEREO AMPLIFIER • 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.
  • Page 2: Table Of Contents

    MAIN PART ................23 EXPLODED VIEW (PMA-720AE) ..........24 PARTS LIST OF EXPLODED VIEW (PMA-720AE) ....25 PACKING VIEW (PMA-720AE) ..........26 PARTS LIST OF PACKING & ACCESSORIES (PMA-720AE) 26 EXPLODED VIEW (PMA-520AE) ..........27 PARTS LIST OF EXPLODED VIEW (PMA-520AE) ....28 PACKING VIEW (PMA-520AE) ..........29 PARTS LIST OF PACKING &...
  • Page 3: About This Manual

    ABOUT THIS MANUAL Read the following information before using the service manual. What you can do with this manual Search for a Ref. No. (phrase) (Ctrl+Shift+F) You can use the search function in Acrobat Reader to search for a Ref. No. in schematic diagrams, printed wiring board diagrams, block diagrams, and parts lists.
  • Page 4: Using Adobe Reader (windows Version)

    Using Adobe Reader (Windows version) Add notes to this data (Sign) Magnify schematic / printed wiring board The Sign function lets you add notes to the data in this diagrams - 1 manual. (Ctrl+Space, mouse operation) Save the file once you have finished adding notes. Press Ctrl+Space on the keyboard and drag the mouse to select the area you want to view.
  • Page 5 Magnify schematic / printed wiring board Magnify schematic / printed wiring board diagrams - 2 diagrams - 3 (Pan & Zoom function) (Loupe Tool function) The Pan & Zoom function lets you see which part of a The Loupe Tool function lets you magnify a specific magnified diagram is being shown in a separate window.
  • Page 6: 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 7: 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 8: Technical Specifications

    Power consumption in standby mode : 0.3 W Power consumption in standby mode : 0.3 W Power outlets : 1 switched outlets, total capacity 100 W (0.43 A) Power outlets : 3 switched outlets, total capacity 100 W (0.43 A) DIMENSION Weight : 7.1kg (PMA-720AE) 6.8kg (PMA-520AE)
  • Page 9: Disassembly

    • Photographs with no shooting direction indicated were taken from the top of the set. • The photograph is PMA-520AEE2 model. The viewpoint of each photograph (Shooting direction) Shooting direction: B [View from the top] Front side Shooting direction: D Shooting direction: C PMA-720AE Shooting direction: A...
  • Page 10: Front Panel Assy

    TOP CABINET FRONT PANEL ASSY → (1) Remove the screws. View from the bottom (2) Cut the wire clamp bands. FRONT PANEL ASSY PMA-720AE (3) Disconnect the connector wires, then remove the screws. CN58 CN50 CN52 FRONT PANEL ASSY CN94...
  • Page 11: Main Pcb Assy

    2. POWER PCB Proceeding : TOP CABINET POWER PCB → Please refer to "EXPLODED VIEW" for the disassembly method of POWER PCB. 3. MAIN PCB ASSY Proceeding : TOP CABINET MAIN PCB ASSY → Please refer to "EXPLODED VIEW" for the disassembly method of MAIN PCB ASSY. 4.
  • Page 12: Adjustment

    ADJUSTMENT Adjusting Idling Current Required measurement equipment: DC Voltmeter 1. Preparation (1) Avoid direct blow from an air conditioner or an electric fan and humidity should be moderate, and place the set at normal usage environment. Temperature should be at 15 °C ~ 30 °C (59 °F ~ 86 °F). (2) Presetting •...
  • Page 13: Trouble Shooting

    TROUBLE SHOOTING 1. The power can not be turned on. (Power indication LED does not light.) Check the insertion of the CUP12451-2 POWER B'D. Check the insertion of the CUP12450 MAIN B'D Check whether power is Power not supplied. being supplied to the coil Broken wire in standby of the standby transformer transformer (T901).
  • Page 14 Personal notes:...
  • Page 15: Block And Level Diagram

    BLOCK AND LEVEL DIAGRAM LC78212 SOURCE DIRECT BUFFER P-AMP SPEAKER A PHONO 45dB TONE 35.5dB(MM) & SPEAKER B LOUDNESS MAIN VOLUME TUNER MAIN TRANS BALANCE HEADPHONE NJU7181RB1 AZ4580MTR POWER NETWORK PRE OUT Signal Detect Level BUFFER 4mV/ch ±15V PHONO EQ VOLATAGE ±15V TONE...
  • Page 16: Wiring Diagram

    WIRING DIAGRAM CUP12451-6 CN10 (3P) AC IN Power B'D CN90 MAIN B'D (2P) CUP12451-2 CUP12450Z CN91 (2P) CN53 BN91 (9P) (2P) CN51 (7P) CN41 CN52 (7P) CN95 CN93 (3P) (3P) POWER TRANSFORMER (6P) TH51 (2P) CN58 (11P) CN50 (13P) BN58 CN94 (11P) (2P)
  • Page 17: Printed Wiring Boards

    PRINTED WIRING BOARDS MAIN CUP12450Z F802 BAR CODE (COMPONENT SIDE) T1A L 250V D926 D922 JK11 CN93 L102 D921 R122 C922 NJM2068 T1A L 250V J279 F801 D924 L101 C921 C926 D923 C923 C929 C251 IC10 JK21 R121 C927 J546 R222 J548 R202...
  • Page 18 MAIN (FOIL SIDE) 鉛フリー半田 半田付けには、鉛フリー半田 (Sn-Ag-Cu) を使用してください。 Lead-free Solder When soldering, use the Lead-free Solder (Sn-Ag-Cu).
  • Page 19: Front

    FRONT HEADPHONE (COMPONENT SIDE) (COMPONENT SIDE) C481 PMA720A/390R_FRONT_MP_CUP12451Z_A CUP12451-7 J533 L CH CUP12451-1 BN92 BN50 R CH J531 J550 HPDRT BN10 D501 J547 J548 BN51 TONE PART BN53 J545 J502 J542 JK41 LOUDNESS J504 C482 J544 R531 J543 HP DET BN56 R CH AGND...
  • Page 20: Power (pma-720ae)

    POWER (PMA-720AE) POWER (PMA-720AE) (COMPONENT SIDE) (FOIL SIDE) FOR CONTINUED PROTECTION AGAINST RISK OF FIRE, REPLACE ONLY WITH THE SAME TYPE AND RATING OF FUSE(S). CAUTION C941 D951 C942 D946 Sec. Sec. D945 J540 Sec. Sec. R100 C944 C943 D944...
  • Page 21: Remote Control

    REMOTE CONTROL REMOTE CONTROL POWER SW POWER SW (COMPONENT SIDE) (FOIL SIDE) (COMPONENT SIDE) (FOIL SIDE) CUP12451-5 RC5 IN SW91 JK02 CN94 D101 SW/HP PART JK01 R107 VOLUME VOLUME (COMPONENT SIDE) (FOIL SIDE) IC12 CUP12451-6 FUNCTION FUNCTION (COMPONENT SIDE) (FOIL SIDE) FUNCTION PART BN58 TUNER...
  • Page 22: Schematic Diagrams (1/2)

    Q582 AGND T 8.0A/125V , 233SERIES (for JAPAN) KRA102M +15V TUNER C945 -15V F901 AGND 100 uF /50V (RFSA) PMA-720AE,390RE 100 uF /50V PMA-520AE AGND F 2.5A/250V,217SERIES (for EUROPE) -15V PHONO T 5.0A/125V , 233SERIES (for JAPAN) Q574 +15V KRC102M...
  • Page 23: Main Part

    D921 TUNER CVITMP86FH47BUG 1SR159-200 D926 TUNER R414 D405 C927,928 C929,930 1N4003SRT 1N4003ST R473 R413 D408 PMA-720AE,390RE OPEN 47 uF /50V (RFSA) COMMON NETWORK 1N4003ST D922 R412 PMA-520AE 0.01 uF /100V (SEORYONG) 47 uF /25V (RA3) PHONO D406 AC 14V RECODER...
  • Page 24: Exploded View (pma-720ae)

    EXPLODED VIEW (PMA-720AE) WARNING: Parts marked with this symbol have critical 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 25: Parts List Of Exploded View (pma-720ae)

    PARTS LIST OF EXPLODED VIEW (PMA-720AE) Ref. No. Part No. Part Name Remarks Q'ty New 943423004870D FUNCTION LENS CGL1A255Z z Parts indicated by "nsp" on this table cannot be supplied. 00D9430190002 FUNCTION LENS CGL1A255Y 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.
  • Page 26: Packing View (pma-720ae)

    PACKING VIEW (PMA-720AE) PARTS LIST OF PACKING & ACCESSORIES (PMA-720AE) 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. Therefore they might differ from the parts used in the unit in appearances or dimensions.
  • Page 27: Exploded View (pma-520ae)

    EXPLODED VIEW (PMA-520AE) WARNING: Parts marked with this symbol have critical 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 28: Parts List Of Exploded View (pma-520ae)

    CMA1A006 SCREW CTWS3+10GR 943403100640D CABINET , TOP CKC1A176K117 SCREW CTBD3+8JFZR 943403100650D CABINET , TOP CKC1A176D11 SCREW CTB3+8JR 42141002300AD BADGE , DENON SCREW CTB3+8JR 42141002301AD BADGE , DENON SCREW CTB3+8JR PLATE , SHIELD CMC2A307 SCREW CTB3+8JR BRACKET , PCB CMD1A417 SCREW...
  • Page 29: Packing View (pma-520ae)

    BATTERY , AAA 2PCS IN PACK CABR03PPB 35251013500AD CD ROM MANUAL ASS`Y (PMA-720/520AE E2) CFT1A070ZA 54111087900AD GETTING STARTED _IM (E2) CQX1A1687Z 54111086500AD INST.MANUAL (PMA-720AE E1C) CQX1A1691Z LIST , S.S CQE1A226P WARRANTY CARD, CHINA CQE1A473Y CARD FOR CHINA INDENTIFICAT CQE1A450Z BAG , POLY...
  • Page 30 Personal notes: Personal notes:...
  • Page 31: 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 TMP86FH47BUG (MAIN :IC41) TMP86FH47BUG Terminal Functions port function active normal to GND x'tal XOUT...
  • Page 32 P14(PPG) volume up P13(DVO) volume down P12(INT2) remocon input P11(INT1) Power off (power failure) P10(TC3) timer reset P30(AIN0) Model switch P31(AIN1) Fixed L P32(AIN2) Fixed L P33(AIN3) function selector eddge/AD P34(AIN4/STOP2) head phone/muting P35(AIN5/STOP3) Fixed L P36(AIN6/STOP4) Fixed L P37(AIN7/STOP5) THERMAL protector LOW eddge VAREF...
  • Page 33 LC78212 (MAIN : IC21) LC78211, 78212, 78213 Top View Continued from preceding page. LC78212 Block diagram...
  • Page 34 LC78211, 78212, 78213 ILC7812 Terminal Functions Pin Functions Internal equivalent circuit Pin function Power supply L1 to L8, R1 to R8, LCOM1 to LCOM4, See the block diagram. Analog switch input and output RCOM1 to RCOM4 Serial data input (Schmitt buffer) CL....Clock input CL, DI, CE DI....Data input...
  • Page 35: Parts List Of P.c.b. Unit

    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" indicate the following destinations. E2 : Europe model E1C : China model FRONT PCB ASSY (PMA-720AE) Ref. No. Part No. Part Name...
  • Page 36 Ref. No. Part No. Part Name Remarks Q'ty R584 RES, CARBON(1/5W,220ohm,J) CRD20TJ221T R591,592 RES, CARBON(1/5W,1Kohm,J) CRD20TJ102T VR51 00D9430197305 VOLUME , MOTOR CVV9Y13B503Z RES , VARIABLE BALANCE RA1450GOE0D- VR52 00D9430197101 CVV2X13M104Z VR53 00D9430197208 TONE VR D103-Q1-FB200B1 CVV2X18D103Z VR54 00D9430215504 TONE VR D303-Q1-FB200B1 CVV2X19D303Z VR56 00D9430195200...
  • Page 37 Ref. No. Part No. Part Name Remarks Q'ty OL92 943641005850S JACK , AC OUTLET (230V , 3P) CJJ7A031Z RC51 943262010290S SENSOR , REMOTE/U CRVKSM603TH5B RY92 00D9430194900 RELAY,G5PA-1,DC6V,1C1P CSL1E002ZE SW51 00D9430194803 SW , PUSH (VERTICAL) CSH2D013Z SW52-54 00D9430199400 SW , PUSH(VERTICAL) KSH2B003Z SW91 00D9430140609...
  • Page 38: Front Pcb Assy (pma-520ae)

    FRONT PCB ASSY (PMA-520AE) Ref. No. Part No. Part Name Remarks Q'ty SEMICONDUCTORS GROUP IC12 262010007707S REMOTE SENSOR , R94EV1A CRVR94EV1A IC52 00D9430198207 I.C , OP AMP NJM2068DD HVINJM2068DD Q101 00D9430154200 TR KRA102M HVTKRA102MT Q500 00D9430154200 TR KRA102M HVTKRA102MT Q502 00D9430154404 T.R KTC3198Y HVTKTC3198YT...
  • Page 39 Ref. No. Part No. Part Name Remarks Q'ty CAPACITORS GROUP C127 CAP , CERAMIC 0.1UF 50V CCBS1H104ZFT C128 CAP, ELECT(10V/100uF) CCEA1AH101T C481,482 CAP, MYLAR(50V/1000pF/J) HCQI1H102JZT C503,504 CAP, ELECT(50V/4.7uF) CCEA1HH4R7T C505-508 CAP, ELECT(50V/10uF) CCEA1HH100T C509,510 CAP , MYLAR(50V/0.033uF/J) CCQI1H333JZT C513,514 CAP, ELECT(50V/0.22uF) CCEA1HHR22T C519,520 CAP, ELECT(50V/0.1uF)
  • Page 40: Main Pcb Assy (pma-720ae)

    MAIN PCB ASSY (PMA-720AE) Ref. No. Part No. Part Name Remarks Q'ty New SEMICONDUCTORS GROUP IC10 00D2630609002 I.C , OP AMP NJM2068DD HVINJM2068DD IC21 00MHC10309030 I.C , FUNCTION HVILC78212 F.E.T , 2SK2145 (N-CH, 2-3L1C, LOW NOISE, IC30 943222500200D CVT2SK2145 TOSHIBA)
  • Page 41 Ref. No. Part No. Part Name Remarks Q'ty New D406,407 00D9430060501 DIODE , RECTIFIER 1SR159 HVD1SR159-200 D408 90M-HD302350R DIODE , ZENER ,1/2W, 27V CVDZJ27BT D409 943202500440D DIODE , ZENER ,1/2W, 9.1V CVDZJ9.1BT D410 00D9430182609 DIODE , SWITCHING, 1SS133 CVD1SS133MT D421 00D9430060501 DIODE , RECTIFIER 1SR159 HVD1SR159-200...
  • Page 42 Ref. No. Part No. Part Name Remarks Q'ty New R342 RES , 1/4W , 150 OHM , T-TYPE CRD14B2E151JT R343,344 00D9430101101 WIRE,COPPER SN95/PB5, 0.6 C3A206 R349-356 943124500330D RES, M-OXIDE FILM(2W/0.22ohm) CRG2SANJR22RT R360 RES , 1/4W , 1 MOHM , T-TYPE , CRD14B2E105JT R361,362 RES, CARBON(1/4W,22Kohm,J)
  • Page 43 Ref. No. Part No. Part Name Remarks Q'ty New R489 RES, CHIP(1608/5%/10Kohm) CRJ10DJ103T R490 00MNN05104610 RES, CHIP(1608/5%/100Kohm) CRJ10DJ104T R491 RES, CHIP(1608/5%/10Kohm) CRJ10DJ103T R492,493 00MNN05473610 RES, CHIP(1608/5%/47Kohm) CRJ10DJ473T R495-500 00MNN05102610 RES, CHIP(1608/5%/1Kohm) CRJ10DJ102T R501 00MGD05104160 RES, CARBON(1/5W,100Kohm,J) CRD20TJ104T R502 RES, CHIP(1608/5%/4.7Kohm) CRJ10DJ472T R510 00MGD05103160 RES, CARBON(1/5W,10Kohm,J)
  • Page 44 Ref. No. Part No. Part Name Remarks Q'ty New C379,380 CAP , POLYPROPYLENE(SEORYONG, CCMP2A104JR16T CAP , ELECT(ELNA, 6.3X11, RA3-25V C383,384 00D2544569924 CCEA1ERA38P101T 101MF3#8P-T2) C390-392 CAP , POLYPROPYLENE(SEORYONG, CCMP2A102JR16T C393-396 CAP , POLYPROPLENE(SEORYONG,PP CCMP2A153JR16T C401 CAP, ELECT(16V/100uF) CCEA1CH101T C402 CAP, CHIP(1608, 50V/0.01uF) CCUS1H103KC C403 CAP, ELECT(16V/100uF)
  • Page 45 Ref. No. Part No. Part Name Remarks Q'ty New HEAT SINK , TR CMY1A043 00D2631100018 I.C,REGULATOR(+6V,T0220IS) HVIKIA7806API 00D9430194609 POSISTOR CRTPTFM04BB222Q...
  • Page 46: Main Pcb Assy (pma-520ae)

    MAIN PCB ASSY (PMA-520AE) Ref. No. Part No. Part Name Remarks Q'ty New SEMICONDUCTORS GROUP IC10 00D9430198207 I.C , OP AMP HVINJM2068DD IC21 00MHC10309030 I.C , FUNCTION HVILC78212 F.E.T , 2SK2145 (N-CH, 2-3L1C, LOW NOISE, IC30 943222500200D CVT2SK2145 TOSHIBA) IC32 943236101330D IC , SIGNAL LEVEL SENSOR CVINJU7181RB1...
  • Page 47 Ref. No. Part No. Part Name Remarks Q'ty New D405 00D9430182502 DIODE , RECT 1N4003 CVD1N4003ST D406,407 90M-HD201840R DIODE , RECTIFIER 1SR159 HVD1SR159-200 D408 90M-HD302350R DIODE , ZENER ,1/2W, 27V CVDZJ27BT D409 943202500440D DIODE , ZENER ,1/2W, 9.1V CVDZJ9.1BT D410 00D9430182609 DIODE , SWITCHING, 1SS133 CVD1SS133MT...
  • Page 48 Ref. No. Part No. Part Name Remarks Q'ty New R361,362 RES, CARBON(1/4W,22Kohm,J) CRD25TJ223T R363,364 RES, CARBON(1/5W,270Kohm,J) CRD20TJ274T R365,366 RES, CARBON(1/5W,22Kohm,J) CRD20TJ223T R367 RES, CARBON(1/5W,47Kohm,J) CRD20TJ473T R368 RES, CARBON(1/5W,12Kohm,J) CRD20TJ123T R369,370 RES, CARBON(1/5W,22Kohm,J) CRD20TJ223T R375,376 RES, CARBON(1/5W,39Kohm,J) CRD20TJ393T R377,378 RES, CARBON(1/5W,100Kohm,J) CRD20TJ104T R379 RES, CARBON(1/5W,10Kohm,J)
  • Page 49 Ref. No. Part No. Part Name Remarks Q'ty New R510 RES, CARBON(1/5W,10Kohm,J) CRD20TJ103T R550 RES, CARBON(1/4W,4.7Kohm,J) CRD25TJ472T R552 RES, CARBON(1/4W,47Kohm,J) CRD25TJ473T R553 RES, CARBON(1/5W,4.7Kohm,J) CRD20TJ472T R554 RES, CARBON(1/5W,47Kohm,J) CRD20TJ473T R555 RES, CARBON(1/5W,4.7Kohm,J) CRD20TJ472T R600,601 RES, CHIP(1608/5%/47ohm) CRJ10DJ470T R602,603 RES, CHIP(1608/5%/1Kohm) CRJ10DJ102T R604,605 RES, CARBON(1/5W,100Kohm,J)
  • Page 50 Ref. No. Part No. Part Name Remarks Q'ty New C404 CAP, CHIP(1608, 50V/0.01uF) CCUS1H103KC C405 CAP, ELECT(16V/3300uF) CCEA1CH332E C406 CAP, ELECT(50V/22uF) CCEA1HH220T C407,408 CAP, CHIP(1608, 50V/0.01uF) CCUS1H103KC C421 CAP, ELECT(50V/10uF) CCEA1HH100T C445 CAP, CHIP(1608, 50V/0.1uF) CCUS1H104KC C458 CAP, ELECT(50V/2.2uF) CCEA1HH2R2T C461 CAP, CHIP(1608, 50V/0.01uF) CCUS1H103KC...

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