Denon AVR-1604 Service Manual
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Denon AVR-1604 Service Manual

Av surround receiver/amplifier
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MODEL
AV SURROUND RECEIVER / 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.
SERVICE MANUAL
AVR-1604/684
AVC-1580
16-11, YUSHIMA 3-CHOME, BUNKYO-KU, TOKYO 113-0034 JAPAN
For U.S.A., Canada, Europe, U.K.,
Asia, China,Taiwan R.O.C., Korea
& Japan model
注 意
サービスをおこなう前に、このサービスマニュアルを
必ずお読みください。本機は、火災、感電、けがなど
に対する安全性を確保するために､さまざまな配慮を
おこなっており、また法的には「電気用品安全法」に
もとづき、所定の許可を得て製造されております。
従ってサービスをおこなう際は、これらの安全性が維
持されるよう、このサービスマニュアルに記載されて
いる注意事項を必ずお守りください。
本機の仕様は性能改良のため、予告なく変更する
ことがあります。
補修用性能部品の保有期間は、製造打切後8年です。
修理の際は、必ず取扱説明書を参照の上、作業を
行ってください。
本文中に使用しているイラストは、説明の都合上
現物と多少異なる場合があります。
X0174V.02 DE/CDM 0311

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  • Page 1 For U.S.A., Canada, Europe, U.K., Asia, China,Taiwan R.O.C., Korea & Japan model SERVICE MANUAL AVR-1604/684 MODEL AVC-1580 AV SURROUND RECEIVER / AMPLIFIER 注 意 サービスをおこなう前に、このサービスマニュアルを 必ずお読みください。本機は、火災、感電、けがなど に対する安全性を確保するために､さまざまな配慮を おこなっており、また法的には「電気用品安全法」に もとづき、所定の許可を得て製造されております。 従ってサービスをおこなう際は、これらの安全性が維 持されるよう、このサービスマニュアルに記載されて いる注意事項を必ずお守りください。 本機の仕様は性能改良のため、予告なく変更する For purposes of improvement, specifications and ことがあります。 design are subject to change without notice.
  • Page 2 AVR1604/684 / AVC-1580 SAFETY PRECAUTIONS The following check should be performed for the continued protection of the customer and service technician. LEAKAGE CURRENT CHECK Before returning the unit to the customer, make sure you make either (1) a leakage current check or (2) a line to chassis resistance check.

  • Page 3: Caution In Servicing

    AVR-1604/684 / AVC-1580 CAUTION IN SERVICING サービス時の注意事項 ● Initializing AV SURROUND RECEIVER ● AV サラウンドアンプの初期化について AV SURROUND RECEIVER initialization should be マイコンやマイコン周辺部品、DSP 基板等を交換した場 performed when the mcom, peripheral parts of mcom, 合は、AV サラウンドアンプの初期化を行って下さい。 and DSP P.W.B. are replaced. 電源ボタンを押してスタンバイ状態にしてから、 Switch off the unit and remove the AC cord from 壁の電源コンセントから電源コードを抜きます。...

  • Page 4: Level Diagrams

    AVR-1604/684 / AVC-1580 LEVEL DIAGRAMS FRONT/CENTR/SURROUND/SURROUND BACK INPUT A/D IN A/D IN A/D IN D/A OUT SW SUM ELECTRIC BUFFER REV AMP TONE PRE AMP POWER AMP REV AMP REV AMP REV AMP REV AMP VOLUME DIGITAL SPK OUT CD IN...
  • Page 5 AVR-1604/684 / AVC-1580 SUB WOORER D/A OUT SW SUM ELECTRIC REV AMP PRE AMP REV AMP VOLUME SUB_WOOFER BD3811K1 6CH INPUT SUB WOOFER DSP OUT PRE OUT MUTE MUTE 30dB 20dB 0dBFS 10dB Front D/A Out TO FRONT CH 200mV ref...

  • Page 6: Block Diagram

    AVR-1604/684 / AVC-1580 BLOCK DIAGRAM AVC1570X / AVR1604 BLOCK DIAGRAM INTREQ RESONATOR KEY_MATRIX 512k X 8 DIGITAL OUT DIGITAL AUDIO DECODER 12MHz MELODY 32 SCDIN FROM SCDIO MICOM OPTICAL 64k X 16 RDATA(21) SCCLK RESET 16-ST-42GNK CLKIN DATA TUNER PLL...
  • Page 7 AVR-1604/684 / AVC-1580 ADJUSTMENT Tuner Section (AVR-1804/884 only) CONNECTION DIAGRAM OF MEASURING INSTRUMENTS T402 T403 STEREO R471 MODULATOR IC402 75ohm FM SSG VR402 Digital Voltmeter TUNER B'D FM ALIGNMENT Input Output Adjustment Tuning Alignment Step Frequency Input Item Type Frequency...
  • Page 8 AVR-1604/684 / AVC-1580 Audio Section Idling Current Required measurement equipment : DC Voltmeter 調整に必要な測定器 : 直流電圧計 Preparation (1) Avoid direct blow from an air conditioner or an electric fan, and adjust the unit at normal room tempereture 15 °C ~ 30 °C (59 °F ~ 86 °F).

  • Page 9: Top View

    AVR-1604/684 / AVC-1580 SEMICONDUCTORS Only major semiconductors are shown, general semiconductors etc. are omitted to list. 主な半導体を記載しています。汎用の半導体は記載を省略しています。 IC’s CXP740096 (IC201) PI6/SO1 PI7/SI1 PE0/INT0 PE1/INT2 PE2/PWM0 PE3/PWM1 PB7/SI2 PB6/SO2 PB5/SCK2 PB4/TO2 PG0/TxD PG1/RxD PG2/EC0 PG3/EC1 PG4/EC2 TOP VIEW PG5/INT3 PG6/INT4 PG7/CINT...
  • Page 10 AVR-1604/684 / AVC-1580 Pin Name Function 24 RELAY F-A FRONT A RELAY 25 RELAY SURR SURROUND RELAY 26 RELAY CNT CENTER RELAY 27 RELAY H/P H/P RELAY 28 FUNC UP ENCODER INPUT(FUNCTION) 29 H/P DETECT H/P DETECT 30 FUNC DOWN...
  • Page 11 AVR-1604/684 / AVC-1580 Pin Name Function 77 PWR DOWN POWER DOWN DETECT 78 RDS CLK TDA7330 CONTROL CLOCK 79 RDS DATA TDA7330 CONTROL DATA  80 NC 81 VIDEO MUTE VIDEO MUTE 82 M32 INTREQ MELODY32 CONTROL 83 VIDEO SEL1...

  • Page 12: Pin Description

    AVR-1604/684 / AVC-1580 M29W800AT (IC805) PIN DESCRIPTION Symbol Pin Name BYTE A0-A18 Address Inputs DQ15A-1 DQ0-DQ7 Data Input/Outputs, Command Inputs DQ8-DQ14 Data Input/Outputs DQ14 DQ0-DQ14 A0-A18 DQ15A-1 Data Input/Output or Address Input DQ13 Chip Enable DQ15A-1 DQ12 Output Enable BYTE...
  • Page 13 AVR-1604/684 / AVC-1580 AD1837 (IC808) DVDD DVDD DBCLK CLATCH DLRCLK PD/RST AGND AGND OUTR4 TOP VIEW OUTL1 OUTL4 OUTR1 AGND AGND AVDD AVDD OUTR3 OUTL2 DVDD DVDD ODVDD ALRCLK ABCLK ASDATA CCLK CLATCH COUT MCLK PD/RST M/S AVDD AVDD DLRCLK...
  • Page 14 AVR-1604/684 / AVC-1580 LC89057W (IC807) EMPHA/UO AUDIO/VO XMODE RXOUT Microcontroller C bit, U bit 37 DO 36 RERR 24 SDIN 23 SLRCK Input Demodulation 22 SBCK Data Selector 21 RDATA & Selector 21 RDATA Lock Detect XMODE 20 RLRCK RX5/VI...
  • Page 15 AVR-1604/684 / AVC-1580 Pin Name Function XOUT X’tal osc. connecting output terminal X’tal osc. connection, external clock input terminal (24.576MHz or 12.288MHz) DVDD — Digital power DGND — Digital GND EMPHA/UO Emphasis information/U-data output/Chip address setting terminal AUDIO/VO Non-PCM detect/V-flag output/ Chip address setting terminal...
  • Page 16 AVR-1604/684 / AVC-1580 BA7625 (IC651) BA7626 (IC652,653) Monitor OUT CTL A V OUT1 LOGIC CTL E CTL B LOGIC V OUT2 CTL D CTL C MONITOR OUT V OUT 1 V OUT 2  IN 1 IN 1  IN 2...
  • Page 17 AVR-1604/684 / AVC-1580 FL DISPLAY 16-ST-66GNK (FL301) TUNED STEREO PHONO TUNER DVD / AUTO -2 -3 V.AUX TAPE ZONE2 PRO LOGICII DIGITAL DIGITAL ANALOG G2~G16 G12 G10 TUNED STEREO PHONO TUNER DVD / VDP TV / DBS AUTO -2 -3 V.AUX...

  • Page 18: Printed Wiring Boards

    AVR-1604/684 / AVC-1580 PRINTED WIRING BOARDS MAIN P.W.B. UNIT COMPONENT SIDE...
  • Page 19 (260G) BU2090F (260G) (260G) (260G) (260G) (260G) (260G) SW305A SW309C SW308C SW307C SW306C SW305C R308C R307C R306C R305C J351 J353 --- SPEAKER --- TONE DEFEAT DOLBY/DTS 5CH STEREO DIRECT/STEREO CN201 R302C (260G) (260G) AVR-1604/AVC-1580 CPU/FRONT ARRAY PCB 7020-06247-000-0 COMPONENT SIDE...
  • Page 20 AVR-1604/684 / AVC-1580 C392 C391 C212 C211 R225 R261 D201 D205 R211 R212 R216 R244 R243 R217 Q201 R220 R242 R241 R204 JR201 R209 Q202 R203 C203 Q312 Q314 D308 R321 R323 R325 D309 IC301 {Value} R322 R324 R326 R327...
  • Page 21 AVR-1604/684 / AVC-1580 CNT P.W.B. UNIT COMPONENT SIDE...
  • Page 22 AVR-1604/684 / AVC-1580 FOIL SIDE...
  • Page 23 AVR-1604/684 / AVC-1580 PRE AMP P.W.B. UNIT COMPONENT SIDE...
  • Page 24 AVR-1604/684 / AVC-1580 INPUT VOL P.W.B. UNIT COMPONENT SIDE...
  • Page 25 AVR-1604/684 / AVC-1580 FOIL SIDE...
  • Page 26 AVR-1604/684 / AVC-1580 DSP P.W.B. UNIT COMPONENT SIDE...
  • Page 27 AVR-1604/684 / AVC-1580 FOIL SIDE...
  • Page 28 AVR-1604/684 / AVC-1580 D-VIDEO P.W.B. UNIT ( FOR JAPAN MODEL ) COMPONENT SIDE...
  • Page 29 AVR-1604/684 / AVC-1580 FOIL SIDE...

  • Page 30: Note For Parts List

    AVR-1604/684 / AVC-1580 NOTE FOR PARTS LIST Part indicated with the mark " " are not always in stock and possibly to take a long period of time for supplying, or in some case supplying of part may be refused.

  • Page 31: Main P.w.b. Unit

    AVR-1604/684 / AVC-1580 PARTS LIST OF P.W.B. UNIT ASS’Y Note : The symbols in the column “Remarks” indicate the following destinations. E3 : U.S.A. & Canada model E1C : China model EU : U.S.A. model (AVR-684) EUT : Taiwan R.O.C. model...
  • Page 32 AVR-1604/684 / AVC-1580 Ref. No. Part No. Part Name Remarks R111C,FL,FR,SL,SR 963 9006 269 Metal oxide 0.22 ohm 1W R118C,FL,FR,SL,SR 963 9006 256 Metal oxide 10 ohm 1W R119C,FL,FR,SL,SR 963 9006 256 Metal oxide 10 ohm 1W R135,136 963 0045 203 Winding 0.1 ohm 5W...
  • Page 33 AVR-1604/684 / AVC-1580 Ref. No. Part No. Part Name Remarks C602-604 963 9006 434 Electrolytic 47uF/16V C605,606 963 9006 463 Electrolytic 470uF/6.3V C607 963 9006 337 Electrolytic 100uF/16V C611 963 9004 546 Ceramic 0.01uF/16V C612,613 963 9004 562 Ceramic 0.047uF/50V...
  • Page 34 AVR-1604/684 / AVC-1580 Ref. No. Part No. Part Name Remarks 960 0194 605 2P pin jack 960 0188 404 3P pin jack 963 0018 007 Screw (2S 3X8 ZNY/BH) 963 0018 007 Screw (2S 3X8 ZNY/BH)

  • Page 35: Cpu P.w.b. Unit

    AVR-1604/684 / AVC-1580 CPU P.W.B. UNIT Ref. No. Part No. Part Name Remarks SEMICONDUCTORS GROUP IC201 963 0121 305 IC CXP740096-178Q IC202 963 0057 602 IC TDA7330BD E2,EK,E2A IC271 963 0114 707 IC MC7812CT IC301 960 0180 004 IC LC75721E...
  • Page 36 AVR-1604/684 / AVC-1580 Ref. No. Part No. Part Name Remarks C202 963 9004 711 Ceramic chip 0.1uF/50V C203 963 9004 698 Ceramic chip 0.01uF/50V C204 963 9006 476 Electrolytic 4.7uF/50V C205 963 9004 711 Ceramic chip 0.1uF/50V C207 963 9004 546 Ceramic 0.01uF/16V...
  • Page 37 AVR-1604/684 / AVC-1580 Ref. No. Part No. Part Name Remarks CP553 963 0088 008 10P connector base (TUC-P) E3,EU,E2,EK,E2A,E1C,EUT,E1K CP601 960 0239 609 13P connector base (TUC-P) CP701 963 0087 504 19P connector base (TUC-P) CP702 963 0087 902 17P connector base (TUC-P)

  • Page 38: Cnt P.w.b. Unit

    AVR-1604/684 / AVC-1580 CNT P.W.B. UNIT Ref. No. Part No. Part Name Remarks SEMICONDUCTORS GROUP IC401 963 0043 700 IC LC72131 E3,EU,E2,EK,E2A,E1C,EUT,E1K IC402 963 0043 904 IC LA1266 E3,EU,E2,EK,E2A,E1C,EUT,E1K IC403 963 0044 000 IC LA3401 E3,EU,E2,EK,E2A,E1C,EUT,E1K IC621,622 960 0180 101...
  • Page 39 AVR-1604/684 / AVC-1580 Ref. No. Part No. Part Name Remarks R118SB,119SB 963 9006 256 Metal oxide 10 ohm 1W R405 960 9003 807 Metal film 100 ohm 1/4W E3,EU,E2,EK,E2A,E1C,EUT,E1K R413 960 9006 503 Metal film 220ohm 1/4W E3,EU,E2,EK,E2A,E1C,EUT,E1K R416 960 9004 301...
  • Page 40 AVR-1604/684 / AVC-1580 Ref. No. Part No. Part Name Remarks C446,447 963 9005 448 Ceramic 330pF/50V E2,EK,E2A C446,447 963 9004 931 Ceramic 180pF/50V E1C,EUT,E1K C448,449 963 9004 957 Ceramic 470pF/50V E3,EU C448,449 963 9004 957 Ceramic 330pF/50V E1C,EUT,E1K C450,451 963 9006 308...
  • Page 41 AVR-1604/684 / AVC-1580 Ref. No. Part No. Part Name Remarks OTHER PARTS GROUP BD701 960 0095 306 LINE FILTER BFS2550A0F1 E3,EU CF401 960 0187 104 Ceramic filter SFE10.7MA8 E3,EU,E1C,EUT,E1K CF401 960 0177 509 Ceramic filter SFE10.7MS3GH E2,EK,E2A CF402 960 0187 104 Ceramic filter SFE10.7MA8...
  • Page 42 AVR-1604/684 / AVC-1580 Ref. No. Part No. Part Name Remarks 960 0184 000 Screw bracket 963 0054 003 Shield tuner pack E3,EU,E2,EK,E2A,E1C,EUT,E1K 963 0099 000 EARTH "D"PLATE E3,EU,E2,EK,E2A,E1C,EUT,E1K 963 0052 403 3P antenna terminal E3,EU,E2,EK,E2A,E1C,EUT,E1K 960 0188 307 6P pin jack...

  • Page 43: Pre-Amp P.w.b. Unit

    AVR-1604/684 / AVC-1580 PRE-AMP P.W.B. UNIT Ref. No. Part No. Part Name Remarks SEMICONDUCTORS GROUP Q501C,FL,FR,SL,SR 960 0196 603 Transistor KTC2874B Q502C,FL,FR,SL,SR 960 0196 205 Transistor KSA992F Q503C,FL,FR,SL,SR 960 0196 205 Transistor KSA992F Q504C,FL,FR,SL,SR 960 0196 506 Transistor KSC1845F ZD341,342 960 0095 500 Zener diode MTZJ5.1B...
  • Page 44 AVR-1604/684 / AVC-1580 Ref. No. Part No. Part Name Remarks 1P contact Ass'y E2,EK,E2A,E1C,EUT,E1K 960 0184 000 Screw bracket...

  • Page 45: Input-Vol P.w.b. Unit

    AVR-1604/684 / AVC-1580 INPUT-VOL P.W.B. UNIT Ref. No. Part No. Part Name Remarks SEMICONDUCTORS GROUP IC701 963 0096 401 IC BD3811K1 IC702 963 0114 503 IC BD3812F IC721 963 0024 004 IC NJM2068M IC761-763 963 0024 004 IC NJM2068M IC781-784...
  • Page 46 AVR-1604/684 / AVC-1580 Ref. No. Part No. Part Name Remarks C762FL,FR,SW 963 9004 575 Ceramic chip 100pF/50V C763FL,FR,SB,SW 963 9004 753 Ceramic chip 0.047uF/50V C764FL,FR 963 9004 627 Ceramic chip 33pF/50V C764SW 963 9004 643 Ceramic chip 47pF/50V C765FL,FR,SW 963 9006 308...

  • Page 47: Dsp P.w.b. Unit

    AVR-1604/684 / AVC-1580 DSP P.W.B. UNIT Ref. No. Part No. Part Name Remarks SEMICONDUCTORS GROUP IC801,802 963 0113 106 IC GP1FA513RZ IC804 963 0096 304 IC DSP MELODY 32 LQFP IC805 963 0114 406 IC M29W800AT IC806 963 0095 606...
  • Page 48 AVR-1604/684 / AVC-1580 Ref. No. Part No. Part Name Remarks C841 963 9006 405 Electrolytic 2.2uF/50V C842-853 963 9004 708 Ceramic chip 0.1uF/50V C854,855 963 9006 324 Electrolytic 100uF/25V C856-864 963 9004 708 Ceramic chip 0.1uF/50V C864L,R 963 9006 421...
  • Page 49 AVR-1604/684 / AVC-1580 Ref. No. Part No. Part Name Remarks L805,806 963 0050 803 Inductor 4.7uH L807 963 0050 900 Inductor 2.2uH XTAL1 963 0095 101 Crystal 12.288MHz...
  • Page 50 AVR-1604/684 / AVC-1580 D-VIDEO P.W.B. UNIT ( FOR JAPAN MODEL ) Ref. No. Part No. Part Name Remarks SEMICONDUCTORS GROUP IC651 960 0175 200 IC BA7625 IC652,653 963 0083 304 IC BA7626 IC654 963 0120 607 IC BU4053BCF O651-653 960 0005 105...
  • Page 51 AVR-1604/684 / AVC-1580 EXPLODED VIEW (FOR U.S.A., CANADA MODEL) WARNING: Parts marked with this symbol have critical characteristics. Use ONLY replacement parts recommended by the manufacturer.
  • Page 52 AVR-1604/684 / AVC-1580 EXPLODEDB VIEW (FOR EUROPE, ASIA, KOREA MODEL) WARNING: Parts marked with this symbol have critical characteristics. Use ONLY replacement parts recommended by the manufacturer.
  • Page 53 AVR-1604/684 / AVC-1580 EXPLODED VIEW (FOR U.K., CHINA MODEL) WARNING: Parts marked with this symbol have critical characteristics. Use ONLY replacement parts recommended by the manufacturer.
  • Page 54 AVR-1604/684 / AVC-1580 EXPLODED VIEW (FOR TAIWAN R.O.C. MODEL) WARNING: Parts marked with this symbol have critical characteristics. Use ONLY replacement parts recommended by the manufacturer.
  • Page 55 AVR-1604/684 / AVC-1580 EXPLODED VIEW (FOR JAPAN MODEL) WARNING: Parts marked with this symbol have critical characteristics. Use ONLY replacement parts recommended by the manufacturer.

  • Page 56: Parts List Of Exploded View

    AVR-1604/684 / AVC-1580 PARTS LIST OF EXPLODED VIEW Note : The symbols in the column “Remarks” indicate the following destinations. E3 : U.S.A. & Canada model E1C : China model EU : U.S.A. model (AVR-684) EUT : Taiwan R.O.C. model...
  • Page 57 AVR-1604/684 / AVC-1580 Ref. No. Part No. Part Name Remarks Q'ty 963 0114 105 INPUT-VOL P.W.B ASSY E3,EU 963 0114 121 963 0114 134 963 0114 118 963 0114 147 963 0114 150 963 0114 163 963 0114 176 INPUT-VOL P.W.B ASSY 963 0114 202 DSP P.W.B ASSY...
  • Page 58 AVR-1604/684 / AVC-1580 Ref. No. Part No. Part Name Remarks Q'ty 960 0003 301 PCB SUPPORTER 963 0051 103 CARD SPACER 963 0109 505 FLT (16-ST-66GNK) FL301 960 0181 100 IC NJL64H380A RMC301 22-1 960 0197 204 LED PI5-RD/HL50RDRF4T LED301-304,306-309...

  • Page 59: Serial Label

    AVR-1604/684 / AVC-1580 Ref. No. Part No. Part Name Remarks Q'ty 963 0094 005 INPUT CUSHION E2,EK,E2A,E1C,EUT,E1K 963 0101 600 PCB BRACKET E2,EK,E2A,E1C,EUT,E1K 960 0093 104 PUSH LIVET E2,EK,E2A,E1C,EUT,E1K ★ 963 0068 400 CAPACITOR COVER E2,EK,E2A,E1C,E1K,N ★ 960 0155 301 CLAMP ★...

  • Page 60: Packing View

    AVR-1604/684 / AVC-1580 PACKING VIEW Contents...

  • Page 61: Parts List Of Packing & Accessories

    AVR-1604/684 / AVC-1580 PARTS LIST OF PACKING & ACCESSORIES Note : The symbols in the column “Remarks” indicate the following destinations. E3 : U.S.A. & Canada model E1C : China model EU : U.S.A. model (AVR-684) EUT : Taiwan R.O.C. model...

  • Page 62: Wiring Diagram

    AVR-1604/684 / AVC-1580 WIRING DIAGRAM COM-VIDEO B'D S-VIDEO B'D S-VIDEO CNT B'D VIDEO CNT B'D MAIN AMP B'D 14P 160mm WIRE 16P 80mm WIRE TRANS 11PIN 14PIN 10PIN 15PIN CONNECTION B'D 6P 200mm SHIELD WIRE 3P 250mm WIRE 4P 80mm WIRE...

  • Page 63: Note For Schematic Diagram

    AVR-1604/684 / AVC-1580 NOTE FOR SCHEMATIC DIAGRAM 配線図について WARNING:  ! 印の部品は安全を維持するために重要な部品です。 Parts marked with this symbol have critical charac- 従って交換時は必ず指定の部品を使用してください。 teristics. Use ONLY replacement parts recommended by the manufacturer. 注） CAUTION: (1) 指定なき抵抗値は Ω、ｋ は ｋΩ、M は MΩ を Before returning the unit to the customer, make sure you make either (1) a leakage current check or (2) a line to 示す。...

  • Page 64: Schematic Diagrams

    AVR-1604/684 / AVC-1580 SCHEMATIC DIAGRAMS (1/8) INPUT/VOLUME BOARD *. C701L/R - C708L/R : E1, E2, C, H, T ONLY R701L R701R IC781A C782FL R782FL NJM2068(1/2) R788FL 10/50 C743 100P-J R702L C742 R784FL 100P-J C741 C783FL 56P-J 100P-J R702R R726L C714L...
  • Page 65 AVR-1604/684 / AVC-1580 SCHEMATIC DIAGRAMS (2/8) CN705 R859L R861L R862L C865L A/D_IN_L 120P-J JTAG CONTROL JACK IC816A R931L C864L IC815A BA4510F 47/16 BA4510F R860L R863L DSP_A1 R1024 R932L TP13 150K R931 DSP_113Pin R998 99 98 97 96 95 94 93 92 91 90 89 88 87 86 85 84 83 82 81 80 79 78 77 76...
  • Page 66 AVR-1604/684 / AVC-1580 SCHEMATIC DIAGRAMS (3/8) CNT BOARD R513FL R512FL 470K PRE-AMP BOARD C503FL C505FL 220P-500V 33P-500V R506FL C501FL R501FL C502FL R504FL 22/16 10/50 R503FL 220P R505FL R508FL +15V SUR-MUTE C504FL R507FL -15V CNT-MUTE FRONT-MUTE SURR-SB-MUTE R509FL 1K2(1/4) TO PRE-AMP BOARD...

  • Page 67: Main Unit

    AVR-1604/684 / AVC-1580 SCHEMATIC DIAGRAMS (4/8) TO CNT BOARD TO CNT BOARD FROM SB-AMP BOARD TO H/P BOARD R104FL C103FL Q101FL 5K6(1) 100P-500V 2SD2390 R115FL CP555 CP556 CP992 CP991 MAIN BOARD R105FL R112FL 5K6(1) C191 - C197, C198*, 199* : E2 ONLY...
  • Page 68 AVR-1604/684 / AVC-1580 SCHEMATIC DIAGRAMS (5/8) TO INPUT BOARD FROM TUNER BOARD TO INPUT BOARD TO INPUT BOARD CP702 CP402 CP701 CP703 CPU BOARD R256 FROM DSP BOARD -15V +15V A/D_IN_R A/D_IN_L D/A_OUT_FR Q251 R252 D/A_OUT_FL DTA114ES * AREA _ OPTION...
  • Page 69 AVR-1604/684 / AVC-1580 SCHEMATIC DIAGRAMS (6/8) VIDEO-CNT BOARD FROM VIDEO BOARD CP602 R602 SUB WOOFER CP603 C481R C481L C481SW C481C C481SR C481SL C481FR C481FL 100P-J 100P-J 100P-J 100P-J 100P-J 100P-J 100P-J 100P-J VOUT C602 DVD/VDP SW_OUT 47/10 SW_GND R481R R481L...
  • Page 70 AVR-1604/684 / AVC-1580 SCHEMATIC DIAGRAMS (7/8) FROM CPU BOARD FROM POWER TRANS CP301A CP303 FRONT BOARD C306 100N(EB) ZD301 MTZ6.8B TUNED STEREO PHONO TUNER AUTO MULTI V_AUX TAPE DPL II DIGITAL DIGITAL ANALOG RMC301 REMOTE 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29...
  • Page 71 AVR-1604/684 / AVC-1580 SCHEMATIC DIAGRAMS (8/8) FE401 TUNER BOARD FTE4-401TB T401 Q401 CF401 CF402 KTC3880 OPT1 OPT1 Q407 L401 DTC114YK AM-DET R474 R401 OPT2 C423 R479 R405 C401 C402 100K 100(1/4W)-R R471VT L402 C438 10uH 1/50 C441 R428 C404 1/50...

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