Denon AVR-3801 Service Manual
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Denon AVR-3801 Service Manual

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Hi-Fi Component

SERVICE MANUAL

AVR-3801
MODEL
AV SURROUND RECEIVER
Some illustrations using in this service manual are slightly different from the actual set.

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Summary of Contents for Denon AVR-3801

  • Page 1: Service Manual

    Hi-Fi Component SERVICE MANUAL AVR-3801 MODEL AV SURROUND RECEIVER Some illustrations using in this service manual are slightly different from the actual set.

  • Page 2: Specifications

    AVR-3801 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: Wire Arrangement

    AVR-3801 WIRE ARRANGEMENT If wire bundles are untied or moved to perform adjustment or parts replacement etc.,be sure to rearrange them neatly as they were originally bundled or placed afterward. Otherwise, incorrect arrangement can be a cause of noise generation.

  • Page 4: Top Cover

    AVR-3801 DISASSEMBLY (Follow the procedure below in reverse order when reassembling) 1. Top Cover Top Cover Remove 3 screws on the rear and 6 screws on both sides to detach the Top Cover as shown in the arrow direction. 2. Front Panel...

  • Page 5: Power Transformer

    AVR-3801 4. Inner Panel Ass'y (1) Remove 3 round and 1 square knobs, and unscrew 4 nuts. (2) Remove 15 screws fixing each P.W.B. Round Knob Square Knob Round Knob Before proceeding to the next stop, take off the Power Transformer.

  • Page 6: Regulator Unit

    AVR-3801 6. Component Video Unit / PRE-OUT Unit / AMP Connect Unit (1) Remove 9 screws to detach Component Video Unit and Pre-out Unit (2) Take off the Amp Connect Unit as shown in the arrow direction after removing 1 screw 7.
  • Page 7 AVR-3801 8. S-Video / C-video / Audio-in & DSP / Ext-in & VR / Digital-in / Tuner Unit (1) Remove 37 screws to detach the Rear Panel. Rear Panel (2) Take off the objective P.W.B. upward. 9. How to Check Power Amp / µ µ µ µ µ -com Unit...

  • Page 8: Level Diagrams

    AVR-3801 LEVEL DIAGRAMS...
  • Page 9 AVR-3801...
  • Page 10 AVR-3801 CLOCK FLOW & WAVE FORM IN DIGITAL BLOCK Wave Form CH1: D-DATA (IC510 (5) ) CH1: DATA CH2: fs CH3: 64fs CH1: DATA CH2: fs CH3: 64fs CH4: 256fs...
  • Page 11 AVR-3801 AVR-3801 ADJUSTMENT ADJUSTMENT Tuner Section Tuner Section CONNECTION DIAGRAM OF MEASURING INSTRUMENTS CONNECTION DIAGRAM OF MEASURING INSTRUMENTS ' ' FM ' ' AM 1U-3318-5 TUNER UNIT 1U-3318-5 TUNER UNIT STEREO MODULATOR OSCILLOSCOPE 75Ω FMSSG VR502 T503 AM IF IC502...

  • Page 12: Audio Section

    AVR-3801 AVR-3801 Audio Section Audio Section Idling Current (1U-3315-1) Idling Current (1U-3315-1) Required measurement equipment : DC Voltmeter Required measurement equipment : DC Voltmeter Preparation 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 Avoid direct blow from an air conditioner or an electric fan, and adjust the unit at normal room tempereture 15 °C ~ 30 °C...
  • Page 13 AVR-3801 SEMICONDUCTORS Name Symbol I/O Type Init Function ! ! ! ! ! IC’s 38 VASS VASS Ref. volt (GND) Note: Abbreviation ahead of IC No. indicates the name of P.W.B. 39 VAREF VAREF Ref. volt (VDD) PO: Power P.W.B.
  • Page 14 AVR-3801 TMP93CS41F (AU: IC301) Name Symbol I/O Type Init Function   PA7/SCOUT 96k-DAC DAC control terminal (H: Sample frequency 96kHz) ←   Address latch enable         P00/AD0 EPROM data in D0 / address out A0 ...
  • Page 15 AVR-3801 ADSP-21065L (AU: IC400) ADSP-21065L Terminal Function Pin Name Pin Name Pin Name Pin Name Pin Name Pin Name 36 VDD 71 MS1 106 GND 141 VDD 176 VDD 37 SDCLK0 72 GND 107 DATA15 142 NC 177 GND RFS0...
  • Page 16 AVR-3801 LC89055W (AU: IC531) LC89055W Terminal Function Pin Name Function DISEL Data input terminal (select input pin of DIN0, DIN1) DOUT Input bi-phase data through output terminal DIN0 Amp built-in coaxial/optical input correspond data input terminal DIN1 Amp built-in coaxial/optical input correspond data input terminal...
  • Page 17 AVR-3801 M35015-210SP (AC: IC308) M35015-210SP Terminal Function Pin No. Symbol Name Function OSC1 Osc. circuit ext. External terminal for indication oscillator circuit. Standard OSC. freq. is approx. 7MHz. OSC2 terminal. With this OSC. freq., decides horizontal indicatin and character width.

  • Page 18: Terminal Function

    AVR-3801 BU4094BCF (CO: IC304, 305) CO: IC304 Port Symbol Function Video input switching Video input switching Video input switching Video output switching Video output switching Video output switching Video output switching Video output switching CO: IC305 Port Symbol Function DIRECT...
  • Page 19 AVR-3801 LC72131M (AC: IC507) LA1265 (S) (AC: IC502) P o s t FM IF Q Det Level Level S Curve Det. Det. RF Amp Mix. AM IF Det. Driver Buffer Reg. S meter SD Adj Osc. LA3401 (AC: 503) BU2090F (EX: IC103)
  • Page 20 AVR-3801 BA7625 (AC: IC302, 377) (RE: 402, 450, 451) BA7626 (AC: IC301, 376) (RE: 452, 453) E MONITOR OUT V OUT1 E MONITOR OUT Monitor OUT ¾ ¾ CTL A 6 d B V OUT1 L O G I C Note 1: * mark means that feasible for either H or L.

  • Page 21: Truth Table

    AVR-3801 (EX: IC810) MC74HC4053N (AC: IC304) BA15218 (AU: IC112) Truth Table (EX: IC301, 308, 701) UPC4570GE (AU: IC109, 731~734) (AU: IC603) BA4510F (EX: IC801~804) LM833MX (CO: IC103) A OUTPUT A –INPUT B OUTPUT A+INPUT B –INPUT B +INPUT NJM2229S (AC: IC305)
  • Page 22 AVR-3801 LH28F800BVE-BTL90 (AU: IC403) Terminal Function Symbol Function Name BYTE A0~A18 Address input DQ15/A-1 DQ0~DQ14 Data in/output DQ15A-1 Data in/output/Address input DQ14 Chip enable input DQ13 Output enable input DQ12 BYTE Word/bute select input Write enable input RESET DQ11 RDY/BSY...
  • Page 23 AVR-3801 HY57V16160D (AU: IC417, 418) Terminal Function DQ15 Pin Name Description DQ14 The system clock input. All other inputs are referenced to the SDRAM on VssQ VssQ Clock the rising edge of CLK. DQ13 DQ12 Controls internal clock signal and when deactivated, the SDRAM will be...
  • Page 24 AVR-3801 MM74HC4052N MM74HC4053N (AC: IC371, 375) (RE: IC403) (RE: IC401) INH6 INH 6 LEVEL LEVEL BINARY TO 1 of 4 BINARY TO 1 of 2 Y-COM A 10 CONVER CONVER DECODER WITH INHIBIT DECODER WITH INHIBIT -TER -TER Y-COM X-COM...
  • Page 25 AVR-3801 NJM7805FA (S) (RE: IC901) NJM7912FA (RE: IC906) SG-8002DCPT (12.287MHz) NJM7815FA (S) (RE: IC905) (AU: IC605) BA033T (AU: IC601) BA05T (RE: IC902) KIA7806API (PO: IC501) KIA7812API (CO: IC402) KIA7820API (RE: IC904) Output Input Output Input  OPTICAL  IC PROTECTOR...
  • Page 26 AVR-3801  TRANSISTORS 2SA1145 (O/Y) 2SA1670 (O/P/Y) 2SC4495 2SA970 (BL) 2SC2705 (O/Y) 2SA988 (E/F) 2SA1015GR 2PA1015GR 2SC3200BL 2PC1815 (BL) KTC2874B B (Base) E (Emitter) E (Emitter) B (Base) C (Collector) C (Collector) C (Collector) C (Collector) E (Emitter) B (Base)
  • Page 27 AVR-3801  FL DISPLAY CM1690C (EX: FL101) TUNED STEREO PHONO TUNER V.AUX TAPE AUTO MULTI PRO LOGIC DIGITAL DIGITAL ANALOG G2~G16 TUNED STEREO PHONO TUNER AUTO MULTI V.AUX TAPE PRO LOGIC DIGITAL DIGITAL ANALOG Pin Assignment PIN NO. CONNECTION S9 S10 S11 S12 S13 S14 S15 S16 S17 PIN NO.

  • Page 28: Printed Wiring Boards

    AVR-3801 PRINTED WIRING BOARDS 1U-3315 COMPONENT SIDE...
  • Page 29 AVR-3801 1U-3316 COMPONENT SIDE...
  • Page 30 AVR-3801 FOIL SIDE...
  • Page 31 AVR-3801 1U-3317 COMPONENT SIDE...
  • Page 32 AVR-3801 FOIL SIDE...
  • Page 33 AVR-3801 1U-3318 COMPONENT SIDE...
  • Page 34 AVR-3801 FOIL SIDE...
  • Page 35 AVR-3801 1U-3319 COMPONENT SIDE...
  • Page 36 AVR-3801 FOIL SIDE...
  • Page 37 AVR-3801 1U-3320 COMPONENT SIDE FOIL SIDE...

  • Page 38: Note For Parts List

    AVR-3801 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 39 AVR-3801 Note: The synbols in the column "Remarks" indicate the following destinations. PARTS LIST OF P.W.B. UNIT EU: U.S.A. model E1C: China model EC: Canada model E1H: Hong Kong model E2: Europe model EUT: Taiwan R.O.C.model 1U-3315 POWER UNIT ASS'Y E1: Asia model Ref.
  • Page 40 AVR-3801 Ref. No. Part No. Part Name Remarks Ref. No. Part No. Part Name Remarks R327,328 241 2378 946 Carbon film 270 ohm 1/4W(NB) RD14B2E271JNBST C209,210 255 1264 908 Mylar film 1000pF/50V CQ93M1H102JT(B) R329,330 241 2378 920 Carbon film 220 ohm 1/4W(NB) RD14B2E221JNBST...
  • Page 41 AVR-3801 Ref. No. Part No. Part Name Remarks Ref. No. Part No. Part Name Remarks Q'ty C606~610 256 1058 939 Metalized 0.047µF/50V CF93A1H473JT (JL) T501 233 6073 107 Power trans (Mini) for EU,EC,EUT C611~615 255 1265 936 Mylar film 0.01µF/50V...
  • Page 42 AVR-3801 1U-3316 EXT.IN UNIT ASS'Y Ref. No. Part No. Part Name Remarks Ref. No. Part No. Part Name Remarks SEMICONDUCTORS R125 247 2007 943 Carbon chip 1 kohm 1/16W RM73B--102JT R126 247 2005 974 Carbon chip 200 ohm 1/16W RM73B--201JT...
  • Page 43 AVR-3801 Ref. No. Part No. Part Name Remarks Ref. No. Part No. Part Name Remarks R417,418 247 2005 903 Carbon chip 100 ohm 1/16W RM73B--101JT R825 247 2009 909 Carbon chip 4.7 kohm 1/16W RM73B--472JT (1608) for EU,EC,E1,E1H,E1C R827,828 247 2005 903 Carbon chip 100 ohm 1/16W...
  • Page 44 AVR-3801 Ref. No. Part No. Part Name Remarks Ref. No. Part No. Part Name Remarks Q'ty C367,368 257 0507 976 Ceramic chip 330pF/50V CC73CH1H331JT OTHERS for EUT,E2 CW077 205 1000 015 7P FJ connector plug C379~382 256 1058 955 Metalized 0.068µF/50V...
  • Page 45 AVR-3801 1U-3317 CONTROL UNIT ASS'Y Ref. No. Part No. Part Name Remarks Ref. No. Part No. Part Name Remarks SEMICONDUCTORS R116 247 2013 982 Carbon chip 470 kohm 1/16W RM73B--474JT R117,118 247 2014 907 Carbon chip 560 kohm 1/16W RM73B--564JT...
  • Page 46 AVR-3801 Ref. No. Part No. Part Name Remarks Ref. No. Part No. Part Name Remarks R348 247 2009 912 Carbon chip 5.1 kohm 1/16W RM73B--512JT R935 247 2010 956 Carbon chip 20 kohm 1/16W RM73B--203JT for E1,E1H R939,940 244 2055 996 Metal oxide 1.2 kohm 1W(NB)
  • Page 47 AVR-3801 Ref. No. Part No. Part Name Remarks Ref. No. Part No. Part Name Remarks Q'ty C342 257 0511 920 Ceramic chip 0.047µF/50V CK73F1H473ZT OTHERS C348 254 4538 939 Electrolytic 47µF/16V CE04W1C470MT SMG/RE3 CW073 205 1092 010 7P connector plug (TWG-P) C349 257 0511 904 Ceramic chip 0.01µF/50V...
  • Page 48 AVR-3801 1U-3318 CONNECT UNIT ASS'Y Ref. No. Part No. Part Name Remarks Ref. No. Part No. Part Name Remarks SEMICONDUCTORS RESISTORS IC301 263 0857 003 IC BA7626 R301~308 247 2004 975 Carbon chip 75 ohm 1/16W RM73B--750JT IC302 263 0856 004 IC BA7625...
  • Page 49 AVR-3801 Ref. No. Part No. Part Name Remarks Ref. No. Part No. Part Name Remarks R515 247 2005 903 Carbon chip 100 ohm 1/16W RM73B--101JT R575,576 247 2012 941 Carbon chip 120 kohm 1/16W RM73B--124JT for EU,EC,E1,E1H,E1C,EUT for EU,EC,E1,E1H,E1C,EUT R516...
  • Page 50 AVR-3801 Ref. No. Part No. Part Name Remarks Ref. No. Part No. Part Name Remarks CAPACITORS C507,508 257 0501 901 Ceramic chip 0.01µF/50V CK73B1H103KT (1608) C509 257 0503 941 Ceramic chip 12pF/50V CC73CH1H120JT C301,302 254 4195 916 Electrolytic 4.7µF/35V CE04W1V4R7MT (SRA) C510 257 0501 901 Ceramic chip 0.01µF/50V...
  • Page 51 AVR-3801 Ref. No. Part No. Part Name Remarks Ref. No. Part No. Part Name Remarks Q'ty C576 257 0509 929 Ceramic chip 1000pF/50V CK73B1H102KT L301 235 0060 963 Inductor 15µH for GE1,G1H LF501 232 9010 009 Antibirdie filter C721,722 255 1264 908 Mylar film 1000pF/50V...
  • Page 52 AVR-3801 1U-3319 REGULATOR UNIT ASS'Y Ref. No. Part No. Part Name Remarks Ref. No. Part No. Part Name Remarks SEMICONDUCTORS R711 247 2008 926 Carbon chip 2.2 kohm 1/16W RM73B--222JT R712 247 2018 903 Carbon chip 0 ohm 1/16W RM73B--0R0KT...
  • Page 53 AVR-3801 Ref. No. Part No. Part Name Remarks Ref. No. Part No. Part Name Remarks Q'ty C905 254 4524 943 Electrolytic 1µF/50V CE04W1H010MT SMG/RE3 FF901~905 202 0040 909 Fuse clip (tape) C906 253 1181 904 Ceramic 0.01µF/50V CK45F1H103ZT(DD-3) FF912 202 0040 909 Fuse clip (tape)
  • Page 54 AVR-3801 1U-3320 AUDIO/DSP UNIT ASS'Y Ref. No. Part No. Part Name Remarks Ref. No. Part No. Part Name Remarks SEMICONDUCTORS R103,104 247 2015 964 Carbon chip 2.7 Mohm 1/16W RM73B--275KT R107~110 247 2018 903 Carbon chip 0 ohm 1/16W RM73B--0R0KT...
  • Page 55 AVR-3801 Ref. No. Part No. Part Name Remarks Ref. No. Part No. Part Name Remarks R305,306 247 2003 989 Carbon chip 33 ohm 1/16W RM73B--330JT R599 247 2004 975 Carbon chip 75 ohm 1/16W RM73B--750JT R307 247 2009 983 Carbon chip 10 kohm 1/16W...
  • Page 56 AVR-3801 Ref. No. Part No. Part Name Remarks Ref. No. Part No. Part Name Remarks R753 247 2009 912 Carbon chip 5.1 kohm 1/16W RM73B--512JT C167~172 257 0506 951 Ceramic chip 100pF/50V CC73CH1H101JT R754 247 2010 943 Carbon chip 18 kohm 1/16W...
  • Page 57 AVR-3801 Ref. No. Part No. Part Name Remarks Ref. No. Part No. Part Name Remarks C619 254 4524 943 Electrolytic 1µF/50V CE04W1H010MT SMG/RE3 C761,762 254 4538 900 Electrolytic 10µF/16V CE04W1C100MT SMG/RE3 C620,621 257 0511 904 Ceramic chip 0.01µF/50V CK73F1H103ZT C763,764 257 0512 903 Ceramic chip 0.1µF/25V...
  • Page 58 AVR-3801 WARNING: E1,E2,E1H model Parts marked with this symbol have critical characteristics. Use ONLY r eplacement parts recommended by the manufacturer. E1,E1H model 5-11 5-12 E2,E1,E1C, E1H,EUT model E2,E1,E1C E1H model The symbols above indicate the following destinations. EU : U.S.A. model...

  • Page 59: Parts List Of Exploded View

    AVR-3801 Note: The symbols in the column "Remarks" indicate the following destinations. EU: U.S.A. model E1C: China model EC: Canada model E1H: Hong Kong model PARTS LIST OF EXPLODED VIEW E2: Europe model EUT: Taiwan R.O.C.model E1: Asia model Ref. No.

  • Page 60: Packing View

    AVR-3801 PARTS LIST OF PACKING & ACCESSORIES PACKING VIEW Note: The symbols in the column "Remarks" indicate the following destinations. EU: U.S.A. model E1C: China model EC: Canada model E1H: Hong Kong model E2: Europe model EUT: Taiwan R.O.C.model E1: Asia model Ref.
  • Page 61 AVR-3801 BLOCK DIAGRAM...
  • Page 62 AVR-3801 WIRING DIAGRAM...
  • Page 63 AVR-3801 SCHEMATIC DIAGRAMS (1/15) + 15V - 15V B LINE B LINE SIGNAL WARNING: Parts marked with this symbol have critical characteristics. SCHEMATIC DIAGRAMS (1/15) Use ONLY r eplacement parts recommended by the manufacture. CAUTION: 1U-3320 (1/4) AUDIO/DSP UNIT NOTICE 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 64: Schematic Diagrams

    AVR-3801 SCHEMATIC DIAGRAMS (1/15)
  • Page 66 + 15V - 15V WARNING: Parts marked with this symbol have critical characteristics. Use ONLY r eplacement parts recommended by the manufacture. CAUTION: Before returning the unit to the customer, make sure you make either (1) a NOTICE leakage current check or (2) a line to chassis resistance check. If the leakage ALL RESISTANCE VALUES IN OHM.
  • Page 67 B LINE B LINE SIGNAL SCHEMATIC DIAGRAMS (1/15) 1U-3320 (1/4) AUDIO/DSP UNIT...
  • Page 68 AVR-3801 SCHEMATIC DIAGRAMS (2/15) + 5V + 3.3V + 5V NOTICE ALL RESISTANCE VALUES I N OHM. k=1,000 OHM M=1,000,000 OHM ALL CAPACITANCE VALUES I N MICRO FARAD. P=MICRO-MICRO FARAD EACH VOLTAGE AND CURRE NT ARE MEASUERD AT NO SIGNAL INPUT CONDITION.
  • Page 69 SCHEMATIC DIAGRAMS (2/15)
  • Page 70 AVR-3801 + 5V...
  • Page 71 NOTICE ALL RESISTANCE VALUES I N OHM. k=1,000 OHM M=1,000,000 OHM ALL CAPACITANCE VALUES I N MICRO FARAD. P=MICRO-MICRO FARAD EACH VOLTAGE AND CURRE NT ARE MEASUERD AT NO SIGNAL INPUT CONDITION. CIRCUIT AND PARTS ARE SUBJECT TO CHANGE WITHOUT PRIOR NOTICE.
  • Page 72 + 3.3V + 5V B LINE SCHEMATIC DIAGRAMS (2/15) SIGNAL 1U-3320 (2/4) AUDIO DSP UNIT...
  • Page 73 AVR-3801 SCHEMATIC DIAGRAMS (3/15) + 5V + 3.3V + 5V NOTICE ALL RESISTANCE VALUES I N OHM. k=1,000 OHM M=1,000,000 OHM ALL CAPACITANCE VALUES I N MICRO FARAD. P=MICRO-MICRO FARAD EACH VOLTAGE AND CURRE NT ARE MEASUERD AT NO SIGNAL INPUT CONDITION.
  • Page 74 AVR-3801 SCHEMATIC DIAGRAMS (3/15)
  • Page 75 + 5V + 3.3V + 5V...
  • Page 77 NOTICE ALL RESISTANCE VALUES I N OHM. k=1,000 OHM M=1,000,000 OHM ALL CAPACITANCE VALUES I N MICRO FARAD. P=MICRO-MICRO FARAD EACH VOLTAGE AND CURRE NT ARE MEASUERD AT NO SIGNAL INPUT CONDITION. CIRCUIT AND PARTS ARE SUBJECT TO CHANGE WITHOUT PRIOR NOTICE.
  • Page 78 AVR-3801 SCHEMATIC DIAGRAMS (4/15) + 5V - 15V + 5V + 15V B LINE B LINE SIGNAL NOTICE ALL RESISTANCE VALUES I N OHM. k=1,000 OHM M=1,000,000 OHM ALL CAPACITANCE VALUES I N MICRO FARAD. P=MICRO-MICRO FARAD EACH VOLTAGE AND CURRE NT ARE MEASUERD AT NO SIGNAL INPUT CONDITION.
  • Page 79 SCHEMATIC DIAGRAMS (4/15) + 5V + 5V...
  • Page 80 AVR-3801 - 15V + 15V...
  • Page 82 B LINE B LINE SIGNAL NOTICE ALL RESISTANCE VALUES I N OHM. k=1,000 OHM M=1,000,000 OHM ALL CAPACITANCE VALUES I N MICRO FARAD. P=MICRO-MICRO FARAD EACH VOLTAGE AND CURRE NT ARE MEASUERD AT NO SIGNAL INPUT CONDITION. CIRCUIT AND PARTS ARE SUBJECT TO CHANGE WITHOUT PRIOR NOTICE.
  • Page 83 AVR-3801 SCHEMATIC DIAGRAMS (5/15) - 15V + 15V NOTICE ALL RESISTANCE VALUES I N OHM. k=1,000 OHM M=1,000,000 OHM ALL CAPACITANCE VALUES I N MICRO FARAD. P=MICRO-MICRO FARAD EACH VOLTAGE AND CURRE NT ARE MEASUERD AT NO SIGNAL INPUT CONDITION.
  • Page 84 AVR-3801 SCHEMATIC DIAGRAMS (5/15)
  • Page 85 - 15V...
  • Page 87 + 15V NOTICE ALL RESISTANCE VALUES I N OHM. k=1,000 OHM M=1,000,000 OHM ALL CAPACITANCE VALUES I N MICRO FARAD. P=MICRO-MICRO FARAD EACH VOLTAGE AND CURRE NT ARE MEASUERD AT NO SIGNAL INPUT CONDITION. CIRCUIT AND PARTS ARE SUBJECT TO CHANGE WITHOUT PRIOR NOTICE.
  • Page 88 AVR-3801 SCHEMATIC DIAGRAMS (6/15) + 5V + 15V - 15V + 59V + 59V + 20V - 33V - 59V + 59V + 5.4V + 6V + 5V + 6.4V NOTICE WARNING: ALL RESISTANCE VALUES I N OHM. k=1,000 OHM M=1,000,000 OHM Parts marked with this symbol have critical characteristics.
  • Page 89 SCHEMATIC DIAGRAMS (6/15) + 15V - 15V...
  • Page 90 AVR-3801 + 5V + 59V + 59V + 20V...
  • Page 91 + 6.4V...
  • Page 92 - 33V - 59V + 59V + 5.4V + 6V + 5V NOTICE WARNING: ALL RESISTANCE VALUES I N OHM. k=1,000 OHM M=1,000,000 OHM Parts marked with this symbol have critical characteristics. ALL CAPACITANCE VALUES I N MICRO FARAD. P=MICRO-MICRO FARAD Use ONLY replacemen t parts recommended by the manufacture.
  • Page 93 AVR-3801 SCHEMATIC DIAGRAMS (7/15) + 20V + 15V B LINE SIGNAL NOTICE ALL RESISTANCE VALUES I N OHM. k=1,000 OHM M=1,000,000 OHM ALL CAPACITANCE VALUES I N MICRO FARAD. P=MICRO-MICRO FARAD EACH VOLTAGE AND CURRE NT ARE MEASUERD AT NO SIGNAL INPUT CONDITION.
  • Page 94 AVR-3801 SCHEMATIC DIAGRAMS (7/15) + 20V + 15V...
  • Page 97 B LINE SIGNAL NOTICE ALL RESISTANCE VALUES I N OHM. k=1,000 OHM M=1,000,000 OHM ALL CAPACITANCE VALUES I N MICRO FARAD. P=MICRO-MICRO FARAD EACH VOLTAGE AND CURRE NT ARE MEASUERD AT NO SIGNAL INPUT CONDITION. CIRCUIT AND PARTS ARE SUBJECT TO CHANGE WITHOUT PRIOR NOTICE.
  • Page 98 AVR-3801 SCHEMATIC DIAGRAMS (8/15) + 20V B LINE SIGNAL NOTICE ALL RESISTANCE VALUES I N OHM. k=1,000 OHM M=1,000,000 OHM ALL CAPACITANCE VALUES I N MICRO FARAD. P=MICRO-MICRO FARAD EACH VOLTAGE AND CURRE NT ARE MEASUERD AT NO SIGNAL INPUT CONDITION.
  • Page 99 SCHEMATIC DIAGRAMS (8/15) + 20V...
  • Page 100 AVR-3801...
  • Page 101 + 20V...
  • Page 102 B LINE SIGNAL NOTICE ALL RESISTANCE VALUES I N OHM. k=1,000 OHM M=1,000,000 OHM ALL CAPACITANCE VALUES I N MICRO FARAD. P=MICRO-MICRO FARAD EACH VOLTAGE AND CURRE NT ARE MEASUERD AT NO SIGNAL INPUT CONDITION. CIRCUIT AND PARTS ARE SUBJECT TO CHANGE WITHOUT PRIOR NOTICE.
  • Page 103 AVR-3801 SCHEMATIC DIAGRAMS (9/15) + 0.4V + 59V + 58.5V + 1.2V + 57.9V + 0.6V + 31V + 1.1V - 1.1V - 1.2V - 59V + 0.3V - 56.8V - 56.2V - 56.2V + 59V - 59V + 6V + 10.5V...
  • Page 104 AVR-3801 SCHEMATIC DIAGRAMS (9/15) + 0.4V + 59V + 58.5V + 1.2V + 57.9V + 0.6V + 31V + 1.1V - 1.1V - 1.2V - 59V + 0.3V - 56.8V - 56.2V - 56.2V...
  • Page 105 + 59V - 59V...
  • Page 106 + 6V...
  • Page 107 + 10.5V B LINE B LINE SIGNAL NOTICE ALL RESISTANCE VALUES IN OHM. k=1,000 OHM M=1,000,000 OHM ALL CAPACITANCE VALUES IN MICRO FARAD. P=MICRO-MICRO FARAD EACH VOLTAGE AND CURRENT ARE MEASUERD AT NO SIGNAL INPUT CONDITION. CIRCUIT AND PARTS ARE SUBJECT TO CHANGE WITHOUT PRIOR NOTICE.
  • Page 108 AVR-3801 SCHEMATIC DIAGRAMS (10/15) + 5V + 9V + 5V + 5V + 6.4V + 10.1V + 20V + 24.6V + 15V - 15V + 25.7V B LINE B LINE SIGNAL WARNING: Parts marked with this symbol have critical characteristics.
  • Page 109 SCHEMATIC DIAGRAMS (10/15) + 5V + 9V + 5V + 6.4V + 10.1V + 20V + 24.6V + 15V - 15V + 25.7V...
  • Page 110 AVR-3801 + 5V...
  • Page 111 WARNING Parts marked Use ONLY r ep CAUTION: Before returni NOTICE leakage curre ALL RESISTANCE VALUES IN OHM. k=1,000 OHM M=1,000,000 OHM current excee ALL CAPACITANCE VALUES IN MICRO FARAD. P=MICRO-MICRO FARAD of the power c EACH VOLTAGE AND CURRENT ARE MEASUERD AT NO SIGNAL INPUT WARNING CONDITION.
  • Page 112 B LINE B LINE SIGNAL with this symbol have critical characteristics. placement parts recommended by the manufacture. SCHEMATIC DIAGRAMS (10/15) ing the unit to the customer, make sure you make either (1) a ent check or (2) a line to chassis resistance check. If the leakage 1U-3319-1 REGULATOR UNIT eds 0.5 milliamps, or if the resistance from chassis to either side 1U-3319-4,5 DIGITAL INPUT UNIT...
  • Page 113 AVR-3801 SCHEMATIC DIAGRAMS (11/15) + 12V + 5.3V + 6V B LINE SIGNAL WARNING: Parts marked with this symbol have critical characteristics. Use ONLY r eplacement parts recommended by the manufacture. CAUTION: Before returning the unit to the customer, make sure you make either (1) a NOTICE leakage current check or (2) a line to chassis resistance check.
  • Page 114 AVR-3801 SCHEMATIC DIAGRAMS (11/15)
  • Page 115 + 12V...
  • Page 116 WARNING: Parts marked with this s Use ONLY r eplacement CAUTION: Before returning the unit NOTICE leakage current check o ALL RESISTANCE VALUES IN OHM. k=1,000 OHM M=1,000,000 OHM current exceeds 0.5 mill ALL CAPACITANCE VALUES IN MICRO FARAD. P=MICRO-MICRO FARAD of the power card is less EACH VOLTAGE AND CURRENT ARE MEASUERD AT NO SIGNAL INPUT WARNING:...
  • Page 117 + 5.3V + 6V B LINE SIGNAL symbol have critical characteristics. t parts recommended by the manufacture. t to the customer, make sure you make either (1) a or (2) a line to chassis resistance check. If the leakage liamps, or if the resistance from chassis to either side s than 460 kohms, the unit is defective.
  • Page 118 AVR-3801 SCHEMATIC DIAGRAMS (12/15) + 4.8V + 6.3V + 6.3V WARNING: B LINE Parts marked with this symbol have critical characteristics. SIGNAL Use ONLY r eplacement parts recommended by the manufacture. CAUTION: NOTICE Before returning the unit to the customer, make sure you make either (1) a ALL RESISTANCE VALUES IN OHM.
  • Page 119 SCHEMATIC DIAGRAMS (12/15) + 6.3V...
  • Page 120 AVR-3801 + 4.8V...
  • Page 121 WARNING: Parts marked with this symbol have critical characteristics. Use ONLY r eplacement parts recommended by the manufacture. CAUTION: NOTICE Before returning the unit to the customer, make sure you make either (1) a ALL RESISTANCE VALUES IN OHM. k=1,000 OHM M=1,000,000 OHM leakage current check or (2) a line to chassis resistance check.
  • Page 122 + 6.3V B LINE SIGNAL SCHEMATIC DIAGRAMS (12/15) 1U-3318-3 S-VIDEO UNIT...
  • Page 123 AVR-3801 SCHEMATIC DIAGRAMS (13/15) + 6.3V + 6.3V B LINE SIGNAL WARNING: Parts marked with this symbol have critical characteristics. Use ONLY r eplacement parts recommended by the manufacture. CAUTION: NOTICE Before returning the unit to the customer, make sure you make either (1) a ALL RESISTANCE VALUES IN OHM.
  • Page 124 AVR-3801 SCHEMATIC DIAGRAMS (13/15) + 6.3V...
  • Page 125 + 6.3V...
  • Page 126 WARNING: Parts marked with t Use ONLY r eplace CAUTION: NOTICE Before returning th ALL RESISTANCE VALUES IN OHM. k=1,000 OHM M=1,000,000 OHM leakage current che ALL CAPACITANCE VALUES IN MICRO FARAD. P=MICRO-MICRO FARAD current exceeds 0.5 of the power card is EACH VOLTAGE AND CURRENT ARE MEASUERD AT NO SIGNAL INPUT CONDITION.
  • Page 127 B LINE SIGNAL this symbol have critical characteristics. ement parts recommended by the manufacture. he unit to the customer, make sure you make either (1) a eck or (2) a line to chassis resistance check. If the leakage 5 milliamps, or if the resistance from chassis to either side s less than 460 kohms, the unit is defective.
  • Page 128 AVR-3801 SCHEMATIC DIAGRAMS (14/15) - 59V + 6.4V + 6V + 12V + 5V + 15V - 15V WARNING: Parts marked with this symbol have critical characteristics. Use ONLY r eplacement parts recommended by the manufacture. CAUTION: NOTICE Before returning the unit to the customer, make sure you make either (1) a ALL RESISTANCE VALUES IN OHM.
  • Page 129 SCHEMATIC DIAGRAMS (14/15) + 12V...
  • Page 130 AVR-3801 - 59V + 6.4V + 6V + 5V...
  • Page 131 NOTICE ALL RESISTANCE VALUES IN OHM B LINE ALL CAPACITANCE VALUES IN M EACH VOLTAGE AND CURRENT A B LINE CONDITION. CIRCUIT AND PARTS ARE SUBJE SIGNAL NOTICE.
  • Page 132 + 15V - 15V WARNING: Parts marked with this symbol have critical characteristics. Use ONLY r eplacement parts recommended by the manufacture. CAUTION: Before returning the unit to the customer, make sure you make either (1) a HM. k=1,000 OHM M=1,000,000 OHM leakage current check or (2) a line to chassis resistance check.
  • Page 133 AVR-3801 SCHEMATIC DIAGRAMS (15/15) - 33V + 5V B LINE B LINE WARNING: Parts marked with this symbol have critical characteristics. Use ONLY r eplacement parts recommended by the manufacture. CAUTION: NOTICE Before returning the unit to the customer, make sure you make either (1) a ALL RESISTANCE VALUES IN OHM.
  • Page 134 AVR-3801 SCHEMATIC DIAGRAMS (15/15) - 33V...
  • Page 136 WARNING: Parts marked with this symbol have critical characteristics. Use ONLY r eplacement parts recommended by the manufacture. CAUTION: NOTICE Before returning the unit to the customer, make sure you make either (1) a ALL RESISTANCE VALUES IN OHM. k=1,000 OHM M=1,000,000 OHM leakage current check or (2) a line to chassis resistance check.
  • Page 137 + 5V B LINE B LINE SCHEMATIC DIAGRAMS (15/15) 1U-3316-2 DISPLAY UNIT 1U-3316-3 VOL UNIT...

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