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Demon PMA-1520AE Service Manual

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e
MODEL
PMA-1520AE
• 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
JP
INTEGRATED AMPLIFIER
e
E3
E2
EK
EA
P
Ver. 5
Please refer to the
MODIFICATION NOTICE.
E1C E1K
P

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Summary of Contents for Demon PMA-1520AE

  • Page 1 MODIFICATION NOTICE. SERVICE MANUAL MODEL E1C E1K PMA-1520AE INTEGRATED 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. • Some illustrations using in this service manual are slightly different from the actual set.

  • Page 2: Table Of Contents

    CONTENTS 目 次 ABOUT THIS MANUAL .............3 What you can do with this manual ..........3 Using Adobe Reader (Windows version) ........4 SAFETY PRECAUTIONS ............6 NOTE FOR SCHEMATIC DIAGRAM .........7 NOTE FOR PARTS LIST ............7 TECHNICAL SPECIFICATIONS ..........9 DIMENSION ................9 DISASSEMBLY ................10 1.

  • 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) Jump to the target of a schematic diagram connector (Ctrl+Shift+F) You can use the search function in Acrobat Reader to search for a Ref.

  • Page 4: Using Adobe Reader (Windows Version)

    Using Adobe Reader (Windows version) Add notes to this data (Sign) Magnify schematic / printed wiring board diagrams - 1 TheSignfunctionletsyouaddnotestothedatain (Ctrl+Space, mouse operation) this manual. Savethefileonceyouhavefinishedaddingnotes. Press Ctrl+Spaceonthekeyboardanddragthe [Example using Adobe Reader X] mousetoselecttheareayouwanttoview. On the "View" menu, click "Sign". • Theselectedareaismagnified.
  • Page 5 Magnify schematic / printed wiring Magnify schematic / printed wiring board diagrams - 2 board diagrams - 3 (Pan & Zoom function) (Loupe Tool function) ThePan&Zoomfunctionletsyouseewhichpartof TheLoupeToolfunctionletsyoumagnifyaspecific amagnifieddiagramisbeingshowninaseparate part of a diagram in a separate window. window. [Example using Adobe Reader X] On the "View"...

  • 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 Beforereturningthesettothecustomer,besuretocarryouteither(1)aleakagecurrentcheckor(2)alinetochassis 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 7: Note For Schematic Diagram

    NOTE FOR SCHEMATIC DIAGRAM WARNING: Partsindicatedbythe z markhavecriticalcharacteristics.UseONLYreplacementpartsrecommendedbythemanufacturer. CAUTION: Beforereturningthesettothecustomer,besuretocarryouteither(1)aleakagecurrentcheckor(2)alinetochassisresistancecheck.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. WARNING: DONOTreturnthesettothecustomerunlesstheproblemisidentifiedandremedied. NOTICE: ALLRESISTANCEVALUESINOHM.k=1,000OHM/M=1,000,000OHM ALLCAPACITANCEVALUESAREEXPRESSEDINMICROFARAD,UNLESSOTHERWISEINDICATED.PINDICATESMICRO-MICRO...
  • Page 8 Personal notes:...

  • Page 9: Technical Specifications

    TECHNICAL SPECIFICATIONS n Power amplifier section n Overall performance • Rated Output Power: • S/N Ratio (A network): both channels driven (CD IN– SPEAKER OUT) PHONO (MM): 89 dB 70 W + 70 W (8 Ω/ohms, 20 Hz – 20 kHz, T.H.D. 0.07 %) (With input terminals short-circuited, 5 mV input signal) PHONO (MC): 74 dB •...

  • Page 10: 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 11: Front Panel Assy

    About the photos used for "descriptions of the DISASSEMBLY" section • The shooting direction of each photograph used herein is indicated on the left side of the respective photograph as "Shooting direction: ***". • Refer to the diagram below about the shooting direction of each photograph. •...

  • Page 12: Power Amp Pwb

    2. POWER AMP PWB → POWER AMP PWB Proceeding : TOP COVER (1) Cut the wire clamp bands, then disconnect the connector wires. Remove the CORD HOLDER and screws. N0651 CORD HOLDER N0331 N0912 N0521 3. INPUT PWB Proceeding : TOP COVER →...

  • Page 13: U-Com Pwb

    4. U-COM PWB → → Proceeding : TOP COVER INPUT PWB U-COM PWB (1) Disconnect the connector wires. Remove the PCB HOLDER. N0691 N1101 N0312 N0512 N0322 N1511 N0821 PCB HOLDER N0911 Shooting direction: C 5. REC INPUT PWB → REC INPUT PWB Proceeding : TOP COVER (1) Remove the screw.

  • Page 14: Adjustment

    ADJUSTMENT IDLING CURRENT ALIGNMENT DC Voltmeter Trans N801 N802 R896 R895 Trans 8U-110144-1 Power Amp P.W.B. Volume Setup (1) Place the unit at an ordinary position avoiding direct air flow from an air-conditioner or fan. Do the adjustment at a temperature between 15°C (59°F) and 30°C (86°F).

  • Page 15: Trouble Shooting

    TROUBLE SHOOTING 1. The power can not be turned on. (Power indication LED does not light.） Check the insertion of the 8U-110144-2 AC UNIT . Check the insertion of the 8U-110145-1 μ-com UNIT. Check whether power is Power not supplied. being supplied to the coil Broken wire in standby of the standby transformer...
  • Page 16 Personal notes:...

  • Page 17: Level Diagram

    LEVEL DIAGRAM SOURCE DIRECT POWER AMP PHONO 45.5dB (MM/MC) TONE 35.6dB(MM) 57.6dB(MC) SPEAKER A 100Hz / 10kHz BALANCE ±8dB MAIN P.AMP VOLUME DIRECT SPEAKER B TUNER P.AMP DIRECT (Bi-Wiring) PRE OUT NETWORK 8200/71 RECORDER POWER MAIN TRANS *2 MAIN POWER AMP RELAY VOLTAGE TONE...

  • Page 18: Power Diagram

    POWER DIAGRAM STANDBY POWER SW TRANS μ +3.3V U301　TMP86FH47BUG（μ-com） D_GND U302　LB1930MC（motor driver） U205　NJU7181（Signal detection IC） assist U206　NJU7181（Signal detection IC） D519 （Power LED RED） D513-8 （Function LED） S801　SP Relay S802　Pre out Relay +12V +12V S803　H/P Relay S201/202/603　signal Relay D_GND (Power LED Green) D519 A_GND POWER AMP BLOCK Current amplification stage...

  • Page 19: Wiring Diagram

    WIRING DIAGRAM 8U-110145-5 8U-110144-5 8U-110145-6 8U-110144-9 TONE UNIT VOLUME UNIT PRE OUT UNIT H/P UNIT N0341 N0342 8U-110145-2 L_ch INPUT UNIT S_GND PHONO R_ch POWER AMP DIRECT IN PRE OUT 8U-110144-1 POWER AMP UNIT N0611<->N0612 CD etc L_ch L_ch L_ch L_ch S_GND S_GND...

  • Page 20: Printed Wiring Boards

    DIGITAL (B SIDE) PRINTED WIRING BOARDS Lead-free Solder When soldering, use the Lead-free Solder (Sn-Ag-Cu). VOL SUB 1_2 (A SIDE) VOL SUB 1_2 (B SIDE) REC INPUT (A SIDE) REC INPUT (B SIDE) VOL SUB UNIT1 VOL SUB UNIT2 REC OUT-L REC OUT-R REC OUT R203...
  • Page 21 H/P (A SIDE) H/P (B SIDE) P.AMP (A SIDE) P.AMP (B SIDE) C802 N0651 R823 R802 R801 R826 R825 R803 R824 C801 C811 C812 R804 JV27 C807 C808 12.5 JV32 15.0 JV31 12.5 C810 JV26 JV29 C809 C803 C804 22.5 8U-110144-9 JV28 C814...
  • Page 22 INPUT (A SIDE) INPUT (B SIDE) K202 J204 K201 J203 25.0 C211 TONE (A SIDE) TONE (B SIDE) S401 12.5 JV37 Z701 R726 C720 C402 C401 JV16 17.5 R725 JV117 JV107 JV108 17.5 R735 J206 C405 C406 C721 JV60 C722 15.0 R728 C715...
  • Page 23 FUNCTION SW (A SIDE) FUNCTION SW (B SIDE) PRE OUT (A SIDE) PRE OUT (B SIDE) REMOTE IN OUT (A SIDE) REMOTE IN OUT (B SIDE) Z511 20.0 8U-110145-4 Q501 R524 D521 R526 REMOTE IN/OUT UNIT R527 U502 R510 R509 R511 R508 R512...

  • Page 24: Schematic Diagrams (1/3)

    H1082 2SK209 COLD OPEN OPEN (GR) ＡＣ　ＰＬＵＧ F902 8U-110144-1 T250MA/250V Q902 8U-110144-2 Z902 K101 PMA-1520AE/1500RE KTA1659A RADIATOR POWER AMP UNIT UNIT OPEN (BLUCK) 8U-110XXX-1 μ-com UNIT 00D4170476010 POWER AMP / POWER / FRONT SW PWB N0311 / N0321 C201 CQ100P(LP)

  • Page 25: Sch02_Input_Tone

    2.2K 2.2/50 U204 10/50 REC_OUT_R AZ4580MTR CLOCK DATA D_GND SIG_DET1 CD-RL PH-RL SIG_DET2 TIMER_RST CD-RL PMA-1520AE/1500RE PH-RL μ-com/INPUT PWB RL+12V B11B-PH-K-S(LF)(SN) 11P-PH N1110 N1110 8U-110145 631010145XXAD SCHEMATIC DIAGRAMS (2/2) SCHEMATIC DIAGRAMS (2/3) 8U-310014 SACD UNIT (2/2) SCH02_INPUT_TONE GND LINE POWER+ LINE...

  • Page 26: Sch03_U-Com_Function

    8U-110145-3 Z511 STYLE-PIN FUNCTION SW 50mm UNIT R520 R521 (10K-10K) OPEN OPEN Q502 KRA102S R522 R523 D_GND PH-LED CD-LED TUNER-LED AUX-LED TAPE1-LED R501 R503 R504 R505 R506 R507 R508 R509 R510 R511 R512 R513 R514 R515 R516 R518 R525 TAPE2-LED 120K 4.7K 1.5K...

  • Page 27: Exploded View

    EXPLODED VIEW Please refer to the last chapter for the part list. * : E2 ONLY 1-10 WARNING: Parts marked with this symbol z have critical characteristics. Use ONLY replacement parts recommended by the manufacturer.
  • Page 28 Personal notes: Personal notes:...

  • Page 29: Packing View

    PACKING VIEW Please refer to the last chapter for the part list. d ⑧-1 “TOP”“REAR” ② “TOP”“FRONT” ⑥ ③ ④ ⑤ ⑦ ⑥ ⑧-2 “BOTTOM”“REAR” UK plug (UK Only) ⑫ “BOTTOM”“FRONT” ⑨ ⑩ ⑪...

  • Page 30: Semiconductors

    TMP86FH47AUG SEMICONDUCTORS 1.2 Pin Assignment Only major semiconductors are shown, general semiconductors etc. are omitted to list. The semiconductor which described a detailed drawing in a schematic diagram are omitted to list. 1. IC's TMP86FH47BUG (8U-110145 : U301) VAREF P13( AVDD P14( AVSS...
  • Page 31 TMP86FH47BUG Terminal Functions port function active normal to GND x'tal XOUT x'tal TEST to VSS/VDD to 3.3v P21(XTIN) LED R P22(XTOUT) LED G REST reset P20(STOP/INT5) Stop mode cancellation HIGH eddge P00(INT0) ASO/DC protector LOW eddge P01(TC4) P direct output P02(RXD) RXD(prom) P03(TXD)
  • Page 32 POWER AMP POWER AMP PCB ASS'Y NOTE:The symbols in the column Remarks indicate the following destinations. E3 : U.S.A. & Canada model E2 : Europe model E1C : China model E1 : Asia model JP : PMA1500RE(Japan model) BK : Black model SP : Premium Silver model REF No.
  • Page 33 POWER AMP REF No. Part No. Part Name Remarks Q'ty New Ver R0981-0984 00D2442051929 RS14B3A821JNBST(S) CAPACIITORS GROUP C0101 CE04W1HR47MT(KR3) C0102 00D2544703706 CE04W1H101MC(RFS#A) C0103 00D2538029726 CK45F2EAC332MC(KX) C0104 CQ93M2A104JT(PEF) C0105 00D2544576713 CE04W1V102MC(RA3) C0201,0202 133050074500S CQ93M2E101J(LP) E2, E1C C0205,0206 133050074500S CQ93M2E101J(LP) E2, E1C C0501 133050076599S CQ93M2E103J(LP)
  • Page 34 INPUT UCOM INPUT UCOM PCB ASS'Y NOTE:The symbols in the column Remarks indicate the following destinations. E3 : U.S.A. & Canada model E2 : Europe model E1C : China model E1 : Asia model JP : PMA1500RE(Japan model) BK : Black model SP : Premium Silver model REF No.
  • Page 35 INPUT UCOM REF No. Part No. Part Name Remarks Q'ty New Ver R0332 RM73B--472JT (1608) +1608 R0333,0334 RM73B--103JT +1608 R0335 RM73B--472JT (1608) +1608 R0336 RM73B--102JT +1608 R0337,0338 RM73B--104JT +1608 R0339 RM73B--472JT (1608) +1608 R0340 RM73B--223JT +1608 R0341-0345 RM73B--102JT +1608 R0346 RM73B--472JT (1608) +1608 R0347 RM73B--103JT...
  • Page 36 INPUT UCOM REF No. Part No. Part Name Remarks Q'ty New Ver C0223,0224 133050074500S CQ93M2E101J(LP) C0225,0226 CE04W1H100MT(RA3) C0227 133050078403S CQ93P2D100K(FAS) C0228,0229 CE04W1H100MT(RA3) C0230-0232 CE04W1H2R2MT(RA3) C0233,0234 133050074500S CQ93M2E101J(LP) C0235,0236 CE04W1H100MT(RA3) C0237 133050078403S CQ93P2D100K(FAS) C0238,0239 CE04W1H100MT(RA3) C0240 CE04W1H2R2MT(RA3) C0241-0244 CE04W1H100MT(RA3) C0245,0246 CE04W1C101MT(RA3) C0251-0253 CQ93M2A221JT(PEF) C0301...
  • Page 37 INPUT UCOM REF No. Part No. Part Name Remarks Q'ty New Ver X0301 00MFQ08004061 CSTS MG 8MHZ TAPING(15PF) Z0501 SHIELD CASE FLASHER SR7005 A332 ★ CHUKOH TAPE...
  • Page 38 EXPLODED EXPLODED NOTE:The symbols in the column Remarks indicate the following destinations. E3 : U.S.A. & Canada model E2 : Europe model E1C : China model E1 : Asia model JP : Japan model BK : Black model SP : Premium Silver model REF No.
  • Page 39 EXPLODED REF No. Part No. Part Name Remarks Q'ty New Ver ★ 13305022340AS FNS100VDC-222J-TP E2, E1C...
  • Page 40 EXPLODED REF No. Part No. Part Name Remarks Q'ty New Ver ★ 13305022340AS FNS100VDC-222J-TP E2, E1C ★ 00MOF55102581 1000PF 100V FNS E2, E1C ★ 00MOF55102581 1000PF 100V FNS E2, E1C ★ 00D2730445001 2SC4495 ★ 00D2730445001 2SC4495 ★ 22205002200AS TK30J25D ★ 22205002200AS TK30J25D ★...
  • Page 41 PACKING PACKING NOTE:The symbols in the column Remarks indicate the following destinations. E3 : U.S.A. & Canada model E2 : Europe model E1C : China model E1 : Asia model JP : Japan model BK : Black model SP : Premium Silver model REF No.

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