Denon AVR-1803/883 Service Manual
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Denon AVR-1803/883 Service Manual

Denon avr-1803/883 av surround receiver
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For U.S.A., Canada, Europe,
U.K., Asia, China, Hong Kong,
Taiwan R.O.C. & Korea model
Hi-Fi Component

SERVICE MANUAL

AVR-1803/883
MODEL
AV SURROUND RECEIVER
Some illustrations using in this service manual are slightly different from the actual set.
16-11, YUSHIMA 3-CHOME, BUNKYOU-KU, TOKYO 113-0034 JAPAN
Telephone: 03 (3837) 5321
X0154 NC 0210

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Summary of Contents for Denon AVR-1803/883

  • Page 1: Service Manual

    U.K., Asia, China, Hong Kong, Taiwan R.O.C. & Korea model Hi-Fi Component SERVICE MANUAL AVR-1803/883 MODEL AV SURROUND RECEIVER Some illustrations using in this service manual are slightly different from the actual set. 16-11, YUSHIMA 3-CHOME, BUNKYOU-KU, TOKYO 113-0034 JAPAN...

  • Page 2: Safety Precautions

    AVR-1803/883 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: Tuner Section

    AVR-1803/883 Tuner section Receiving Range: [FM] (note: µV at 75 ohms, 0 dBf=1 x 10 [AM] U.S.A. & Canada Models: 87.50 MHz ~ 107.90 MHz 520 kHz ~ 1710 kHz Europe & U.K. Models: 87.50 MHz ~ 108.00 MHz 522 kHz ~ 1611 kHz Asia Model: 87.50 MHz ~ 107.90 MHz (0.2 MHz steps)

  • Page 4: Top Cover

    AVR-1803/883 DISASSEMBLY (Follow the procedure below in the reverse order when reassembling) Top Cover 1. Top Cover Remove 6 screws and 3 screws , then detach the Top Cover to the arrow direction. 2. Front Panel (1) Remove 4 screws...
  • Page 5 AVR-1803/883 LEVEL DIAGRAMS FRONT/CENTER/SURROUND...
  • Page 6 AVR-1803/883 SUB WOOFER...
  • Page 7 AVR-1803/883 BLOCK DIAGRAM...
  • Page 8 AVR-1803/883 ADJUSTMENT Tuner Section 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 Modulation Coupling Type Connect to...
  • Page 9 AVR-1803/883 Audio Section Idling Current Required measurement equipment : DC Voltmeter 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 10 AVR-1803/883 SEMICONDUCTORS 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 PF0/AN4 PF1/AN5 PF2/AN6 PF3/AN7 PF4/AN8 CXP740096 Terminal Function Pin Name Function 9274 STB TC9274 CONTROL...
  • Page 11 AVR-1803/883 Pin Name Function 24 RELAY SPK A FRONT 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 ENCODER INPUT(FUNCTION) ...
  • Page 12 AVR-1803/883 Pin Name Function 77 PWR DOWN POWER DOWN DETECT 78 RDS CLK TDA7330 CONTROL CLOCK 79 RDS DATA TDA7330 CONTROL DATA  80 NC 81 9184 CE TC9184 CONTROL 82 M32 INTREQ MELODY32 CONTROL 83 MULTI MUTE MULTI MUTE...
  • Page 13 AVR-1803/883 MELODY32 (IC804) TOP VIEW MELODY32 Terminal Function Pin Name Pin Name Pin Name Pin Name Pin Name Pin Name 25 V 49 DR2 73 RESET 97 A11 121 WR DDEXT 26 HACK 50 RCLK2 74 TDO 98 A12 122 RD...
  • Page 14 AVR-1803/883 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 CONTROL PORT...
  • Page 15 AVR-1803/883 LC89057W (IC807) EMPHA/UO AUDIO/VO XMODE RXOUT Microcontroller C bit, U bit 37 DO 36 RERR 24 SDIN 23 SLRCK Input Demodulation Data 22 SBCK Selector 21 RDATA & Selector 21 RDATA Lock Detect XMODE 20 RLRCK RX5/VI DGND 19 DVDD...
  • Page 16 AVR-1803/883 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 17 AVR-1803/883 LC75721E (IC301) MM74LCX244 (IC809~811) LC75721E Terminal Function TOP VIEW Symbol Function Power terminal +5V Power terminal GND Power terminal FL drive AM 17 Serial data transfer terminal AM 18 DI: Data AM 19 AM 20 CL: Clock AM 21...
  • Page 18 AVR-1803/883 BA7625 (IC605D) TC9184AP (IC552) BA7626 (IC652, 653, 601, 603 603D, 604D, 651, 654) MONITOR OUT Monitor OUT IN 1 CTL A IN 2 Level shift BASS+ BASS+ IN 3 V OUT1 LOGIC IN 4 IN 5 BASS- BASS- V OUT 1...
  • Page 19 AVR-1803/883 TRANSISTORS DTA114ES DTA114EK DTC114TS DTA114YK DTC Series DTA Series DTC114YS DTA144EK DTC144ES DTC114EK DTC114YK DTC144EK FRONT VIEW VIEW DTA114EK 10kohm /Ω 10kohm /Ω 10kohm /Ω 10kohm /Ω DTC114EK  DTC114TS 10kohm /Ω DTA114ES 10kohm /Ω 10kohm /Ω DTA114YK 10kohm /Ω 47kohm /Ω...
  • Page 20 AVR-1803/883 FL DISPLAY 16-st-42GNK (FL301) TUNED STEREO PHONO TUNER DVD / −1 −2 −3 −1 −2 AUTO V.AUX TAPE MULTI PRO LOGIC DIGITAL DIGITAL ANALOG G2~G16 G12 G10 TUNED STEREO PHONO TUNER DVD / VDP TV / DBS −2 −3 V.AUX −1...
  • Page 21 AVR-1803/883 PRINTED WIRING BOARDS MAIN P .W.B. UNIT (for U.S.A., Canada, Europe, U.K., Australia, China & Korea models) COMPONENT SIDE...
  • Page 22 AVR-1803/883 FOIL SIDE...
  • Page 23 AVR-1803/883 MAIN P .W.B. UNIT (for Asia, Hong Kong & Taiwan R.O.C. models) COMPONENT SIDE...
  • Page 24 AVR-1803/883 FOIL SIDE...
  • Page 25 AVR-1803/883 CPU P .W.B. UNIT COMPONENT SIDE...
  • Page 26 AVR-1803/883 FOIL SIDE...
  • Page 27 AVR-1803/883 CNT P .W.B. UNIT COMPONENT SIDE...
  • Page 28 AVR-1803/883 FOIL SIDE...
  • Page 29 AVR-1803/883 INPUT-PREAMP P .W.B. UNIT COMPONENT SIDE...
  • Page 30 AVR-1803/883 FOIL SIDE...
  • Page 31 AVR-1803/883 DSP P .W.B. UNIT COMPONENT SIDE FOIL SIDE...
  • Page 32 AVR-1803/883 VOL-SEL P .W.B. UNIT COMPONENT SIDE...
  • Page 33 AVR-1803/883 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. When ordering of part, clearly indicate "1" and "I" (i) to avoid mis-supplying.
  • Page 34 AVR-1803/883 Note: The symbols in the column “Remarks” indicate the following destinations. E3: U.S.A. model, Canada model Asia model PARTS LIST OF P.W.B. UNIT ASS'Y EU: U.S.A. model (AVR-883) E1C: China model E2: Europe model E1H: Hong Kong model EK: U.K. model E1T: Taiwan R.O.C.
  • Page 35 AVR-1803/883 Ref. No. Part No. Part Name Remarks Ref. No. Part No. Part Name Remarks R109FR 963 9005 477 Metal oxide 0.22 ohm 1W C102FL 963 9005 778 Electrolytic 10uF/50V R109SL 963 9005 477 Metal oxide 0.22 ohm 1W C102FR...
  • Page 36 AVR-1803/883 Ref. No. Part No. Part Name Remarks Ref. No. Part No. Part Name Remarks Q'ty C171C 963 9004 559 Ceramic 0.1uF/50V OTHER PARTS GROUP C172 963 9005 833 Electrolytic 220uF/6.3V CN391 963 0060 602 7P connector base C173 963 9005 833 Electrolytic 220uF/6.3V...
  • Page 37 AVR-1803/883 CPU P.W.B. ASS'Y Ref. No. Part No. Part Name Remarks Q'ty Ref. No. Part No. Part Name Remarks RLY104 960 0181 702 Relay (G5PA-28 24V) SEMICONDUCTORS GROUP RLY105 963 0071 303 Relay (RSB24S 24V) IC201 963 0102 201 IC CXP740096-161Q...
  • Page 38 AVR-1803/883 Ref. No. Part No. Part Name Remarks Ref. No. Part No. Part Name Remarks D302 963 0096 508 Diode 1N4148 R220 963 9004 070 Carbon chip 10 kohm 1/16W D303 963 0096 508 Diode 1N4148 R220SW 963 9004 070 Carbon chip 10 kohm 1/16W...
  • Page 39 AVR-1803/883 Ref. No. Part No. Part Name Remarks Ref. No. Part No. Part Name Remarks R247C 963 9004 339 Carbon chip 470 ohm 1/16W R355 963 9004 847 Carbon chip 3.3 kohm 1/16W R247SL 963 9004 339 Carbon chip 470 ohm 1/16W...
  • Page 40 AVR-1803/883 Ref. No. Part No. Part Name Remarks Ref. No. Part No. Part Name Remarks R407 963 9004 342 Carbon chip 4.7 kohm 1/16W C227 963 9005 765 Electrolytic 10uF/35V C228 963 9004 575 Ceramic chip 100pF/50V R601BL 963 9003 385 Carbon chip 100 ohm 1/16W...
  • Page 41 AVR-1803/883 Ref. No. Part No. Part Name Remarks Ref. No. Part No. Part Name Remarks Q'ty C316 963 9005 778 Electrolytic 10uF/50V C317 963 9005 862 Electrolytic 47uF/16V J324 963 9003 369 Carbon chip 0 ohm 1/8W C318 963 0021 900 Mylar film 0.047uF/100V...
  • Page 42 AVR-1803/883 CNT P.W.B. ASS'Y Ref. No. Part No. Part Name Remarks Ref. No. Part No. Part Name Remarks SEMICONDUCTORS GROUP Q651 960 0005 105 Transistor KTA1266Y Q652 960 0005 105 Transistor KTA1266Y IC201RM 960 0174 104 IC CXA1511M Q653 960 0005 105 Transistor KTA1266Y...
  • Page 43 AVR-1803/883 Ref. No. Part No. Part Name Remarks Ref. No. Part No. Part Name Remarks RESISTORS GROUP R444 963 9004 847 Carbon chip 3.3 kohm 1/16W for E2,EK R445 963 9004 481 Carbon chip 8.2 kohm 1/16W for E3,EU,ASIA R201RM...
  • Page 44 AVR-1803/883 Ref. No. Part No. Part Name Remarks Ref. No. Part No. Part Name Remarks R652T 244 2043 982 Metal oxide 0.22 ohm 1W C203RM 960 9008 653 Mylar film 0.012uF/100V R653 963 9004 465 Carbon chip 75 ohm 1/16W...
  • Page 45 AVR-1803/883 Ref. No. Part No. Part Name Remarks Ref. No. Part No. Part Name Remarks C447 963 9004 940 Ceramic 270pF/50V for E3,EU C561FL 960 9008 695 Mylar film 0.0068uF/100V C447 963 9004 957 Ceramic 330pF/50V for E2,EK C561FR 960 9008 695 Mylar film 0.0068uF/100V...
  • Page 46 AVR-1803/883 Ref. No. Part No. Part Name Remarks Ref. No. Part No. Part Name Remarks Q'ty C672S 963 9005 862 Electrolytic 47uF/16V J584 963 9003 372 Carbon chip 0 ohm 1/16W C676 963 9004 753 Ceramic chip 0.047uF/50V J585 963 9003 372 Carbon chip 0 ohm 1/16W C677 963 9004 753 Ceramic chip 0.047uF/50V...
  • Page 47 AVR-1803/883 INPUT VOLUME P.W.B. ASS'Y Ref. No. Part No. Part Name Remarks Ref. No. Part No. Part Name Remarks Q602V 269 0082 902 Transistor DTC114EK SEMICONDUCTORS GROUP Q603 960 0005 105 Transistor KTA1266Y IC601 963 0083 304 IC BA7626 Q604...
  • Page 48 AVR-1803/883 Ref. No. Part No. Part Name Remarks Ref. No. Part No. Part Name Remarks R460 963 9004 245 Carbon chip 2.2 Mohm 1/16W R703R 963 9004 339 Carbon chip 470 ohm 1/16W R461 963 9004 245 Carbon chip 2.2 Mohm 1/16W...
  • Page 49 AVR-1803/883 Ref. No. Part No. Part Name Remarks Ref. No. Part No. Part Name Remarks R737L 963 9004 193 Carbon chip 22 ohm 1/16W C504SB 963 9003 178 Ceramic 220pF/50V R737R 963 9004 193 Carbon chip 22 ohm 1/16W C504SL...
  • Page 50 AVR-1803/883 Ref. No. Part No. Part Name Remarks Ref. No. Part No. Part Name Remarks Q'ty C682 963 9004 520 Ceramic 100pF/50V CN609 963 0105 907 3P wire C709L 963 9005 765 Electrolytic 10uF/35V CN701 963 0085 302 17P connector socket (TUC-P)
  • Page 51 AVR-1803/883 DSP P.W.B. ASS'Y Ref. No. Part No. Part Name Remarks Ref. No. Part No. Part Name Remarks SEMICONDUCTORS GROUP R861R 963 9004 339 Carbon chip 470 ohm 1/16W R862L 963 9004 834 Carbon chip 5.6 kohm 1/16W IC801 269 0186 002 IC GP1FA502RZ R862R 963 9004 834 Carbon chip 5.6 kohm 1/16W...
  • Page 52 AVR-1803/883 Ref. No. Part No. Part Name Remarks Ref. No. Part No. Part Name Remarks R871SB 963 9004 083 Carbon chip 100 kohm 1/16W R984 963 9004 326 Carbon chip 47 ohm 1/16W R871SL 963 9004 083 Carbon chip 100 kohm 1/16W...
  • Page 53 AVR-1803/883 Ref. No. Part No. Part Name Remarks Ref. No. Part No. Part Name Remarks C803 963 9004 591 Ceramic chip 22pF/50V C868 963 9005 998 Ceramic chip 24pF/50V C804 963 9004 591 Ceramic chip 22pF/50V C869 963 9005 998 Ceramic chip 24pF/50V...
  • Page 54 AVR-1803/883 Ref. No. Part No. Part Name Remarks Ref. No. Part No. Part Name Remarks Q'ty C925 963 9004 708 Ceramic chip 0.1uF/50V OTHER PARTS GROUP C926 963 9005 752 Electrolytic 10uF/35V CB803 963 0050 502 Chip emifil C931 963 9004 698 Ceramic chip 0.01uF/50V...
  • Page 55 AVR-1803/883 VOLTAGE-SEL. P.W.B. ASS’Y Ref. No. Part No. Part Name Remarks Q'ty OTHER PARTS GROUP CN105 963 0059 202 2P connector cord for E1,E1H,E1T CN903 963 0058 805 2P connector cord for E1,E1H,E1T CP901 963 0061 203 5P connector base...
  • Page 56 AVR-1803/883 EXPLODED VIEW WARNING: Parts marked with this symbol have critical characteristics. Use ONLY replacement parts recommended by the manufacturer. for E2, EK, E1, E1H, E1T, E1K for E1, E1H, E1T for E3, EU for E3, EU Note: The symbols indicate the following destinations.
  • Page 57 AVR-1803/883 Note: The symbols in the column “Remarks” indicate the following destinations. E3: U.S.A. model, Canada model Asia model EU: U.S.A. model (AVR-883) E1C: China model E2: Europe model E1H: Hong Kong model PARTS LIST OF EXPLODED VIEW EK: U.K. model E1T: Taiwan R.O.C.
  • Page 58 67 112 0837 000 Function knob for Black model 112 0837 013 Function knob for Gold model 68 131 0158 007 DENON badge for Black model 131 0158 010 DENON badge for Gold model 70 963 0094 801 Button (3key)
  • Page 59 AVR-1803/883 PACKING VIEW Contents Note: The symbols in the column “Remarks” indicate the following destinations. E3: U.S.A. model, Canada model Asia model EU: U.S.A. model (AVR-883) E1C: China model E2: Europe model E1H: Hong Kong model PARTS LIST OF PACKING & ACCESSORIES EK: U.K.
  • Page 60 AVR-1803/883 WIRING DIAGRAM...
  • Page 61 AVR-1803/883 SCHEMATIC DIAGRAMS (1/10) SCHEMATIC DIAGRAMS (1/10) INPUT UNIT MULTIOUT UNIT COMPONENT-VIDEO UNIT PRE-AMP-CNT UNIT B LINE CDR-CNT UNIT SIGNAL LINE FRONT-OPTICAL UNIT...
  • Page 62 AVR-1803/883 SCHEMATIC DIAGRAMS (2/10) B LINE SCHEMATIC DIAGRAMS (2/10) SIGNAL LINE DSP UNIT...
  • Page 63 AVR-1803/883 SCHEMATIC DIAGRAMS (3/10) SCHEMATIC DIAGRAMS (3/10) B LINE CNT UNIT SIGNAL LINE PRE AMP UNIT...
  • Page 64 AVR-1803/883 SCHEMATIC DIAGRAMS (4/10) SCHEMATIC DIAGRAMS (4/10) MAIN UNIT POWER SWITCH UNIT B LINE OUTLET UNIT SIGNAL LINE VOLTAGE SEL UNIT...
  • Page 65 AVR-1803/883 SCHEMATIC DIAGRAMS (5/10) SCHEMATIC DIAGRAMS (5/10) B LINE CPU UNIT SIGNAL LINE...
  • Page 66 AVR-1803/883 SCHEMATIC DIAGRAMS (6/10) SCHEMATIC DIAGRAMS (6/10) B LINE S-VIDEO UNIT C-VIDEO UNIT...
  • Page 67 AVR-1803/883 SCHEMATIC DIAGRAMS (7/10) SCHEMATIC DIAGRAMS (7/10) B LINE COMPONENT-VIDEO UNIT...
  • Page 68 AVR-1803/883 SCHEMATIC DIAGRAMS (8/10) B LINE SCHEMATIC DIAGRAMS (8/10) 1CH-AMP UNIT FRONT-CNT UNIT...
  • Page 69 AVR-1803/883 SCHEMATIC DIAGRAMS (9/10) SCHEMATIC DIAGRAMS (9/10) FRONT UNIT SWITCH UNIT B LINE HEAD PHONE UNIT FRONT-S-VIDEO UNIT...
  • Page 70 AVR-1803/883 SCHEMATIC DIAGRAMS (10/10) B LINE SCHEMATIC DIAGRAMS (10/10) SIGNAL LINE TUNER UNIT...

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