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3 7 63 1515 0 Hi-Fi Component SERVICE MANUAL AVR-2801/981 MODEL AV SURROUND RECEIVER L 13942296513 SYSTEM SURROUND TUNING SETUP PARAMETER TITLE MENU/GUIDE BAND CH SELECT ENTER MODE SELECT MEMORY STATUS ON SCREEN DISPLAY RETURN USE/LEARN T.TONE MULTI OUTPUT SET UP Some illustrations using in this service manual are slightly different from the actual set.
AVR-2801/981 3 7 63 1515 0 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.
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AVR-2801/981 3 7 63 1515 0 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.
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AVR-2801/981 3 7 63 1515 0 DISASSEMBLY (Follow the procedure below in reverse order when reassembling) 1. Top Cover Remove 3 screws on the rear and 6 screws on both Top Cover sides to detach the Top Cover as shown in the arrow direction.
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AVR-2801/981 AVR-2801/981 3 7 6 3 1 5 1 5 0 ADJUSTMENT ADJUSTMENT Tuner Section Tuner Section CONNECTION DIAGRAM OF MEASURING INSTRUMENTS CONNECTION DIAGRAM OF MEASURING INSTRUMENTS ' ' FM ' ' AM 1U-3235-5 TUNER UNIT 1U-3235-5 TUNER UNIT...
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AVR-2801/981 3 7 63 1515 0 Audio Section Idling Current (1U-3232-1) 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).
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AVR-2801/981 AVR-2801/981 3 7 6 3 1 5 1 5 0 SEMICONDUCTORS SEMICONDUCTORS Name Name Symbol Symbol I/O Type Type Init Init Function Function & & IC’s IC’s 38 VASS VASS VASS VASS Ref. volt (GND) Ref. volt (GND) Note: Note: Abbreviation ahead of IC No.
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AVR-2801/981 AVR-2801/981 3 7 6 3 1 5 1 5 0 TMP93CS41F (AU: IC301) TMP93CS41F (AU: IC301) Name Name Symbol Symbol I/O Type Type Init Init Function Function DEEMP DEEMP DAC de-emphasis filter cont. out terminal (H: ON) DAC de-emphasis filter cont.
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AVR-2801/981 3 7 63 1515 0 LC89055W (AU: IC800) AUDIO EMPHA XSEL MODE0 XOUT MODE1 XMCK DGND DVDD DVDD DGND DOSEL0 XSTATE DOSEL1 DATA0 CKSEL0 LRCK CKSEL1 XMODE CKOUT LC89055W Terminal Function Pin Name Function DISEL Data input terminal (select input pin of DIN0, DIN1)
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AVR-2801/981 3 7 63 1515 0 M35015-204SP (RE: IC308) OSC1 OSC2 VERT* HOR* SYNC SIGNAL SYNC SIGNAL DIS- CRIMINATING CIRCUIT SWITCHING CIRCUIT INPUT INDICATION CONTROL OSCILLATOR OSCIN OSC CIRCUIT CIRCUIT FOR SYNC SIGNAL H COUNTER GENERATION OSCOUT DATA ADDRESS...
AVR-2801/981 3 7 63 1515 0 LC75721E (EX: IC101) 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...
AVR-2801/981 3 7 63 1515 0 AK5353 (AU: IC813) Terminal Function Name Function AINR AINR Rch analog input pin AINL AINL Lch analog input pin VREF Ref. V out pin VREF VCOM Common V out pin VCOM AGND Analog GND pin ...
AVR-2801/981 3 7 63 1515 0 BU4094BF (CO: IC304, EX: IC103) CO: IC304 Port Symbol Function Video input switching Video input switching Video input switching Video output switching Video output switching Video output switching (DVD/TV) Video output switching (DVD/TV)
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AVR-2801/981 3 7 63 1515 0 BA4510F (AU: IC811) UPC4570G2 (EX: IC302,308~310,701,801~803) (CO: IC103,104) (AU: IC106,109,731~733) A OUTPUT A –INPUT B OUTPUT A+INPUT B –INPUT B +INPUT LC72131M (RE: IC507) L 13942296513 NJU7313AL (EX: IC311) L - C O M 1...
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AVR-2801/981 3 7 63 1515 0 TC9459N (EX: IC805~807) R-OUT L-OUT 50k W / 91S TEP Same as L-ch R-IN L-IN R-LD1 L-LD1 R-LD2 L-LD2 R-A-GND L-A-GND R-ch7 to 91decoder L-ch7 to 91decoder L-ch latch circuit R-ch latch circuit...
AVR-2801/981 3 7 63 1515 0 TRANSISTORS 2SA970 (BL) 2SC2705 (O) / (Y) 2SA1491 2PA1015GR 2SC3855 2SA988 (E/F) 2PC1815 (BL) 2SC3200 (BL) KTC2874B B (Base) E (Emitter) C (Collector) B (Base) C (Collector) E (Emitter) C (Collector) B (Base)
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AVR-2801/981 3 7 63 1515 0 DIODES (included LED) 1SS270A MTZJ3.3A MTZJ7.5A 1SR35-400A DSM1D2(Type 3) MTZJ5.6A MTZJ9.1A MTZJ6.2A MTZJ36A White Naby Blue Green Orange Black Black SEL1210S (Red) S4VB20 DAN202K DAP202K SEL4214S...
AVR-2801/981 3 7 63 1515 0 FL DISPLAY CM1690 (VI : FL101) TUNED STEREO PHONO TUNER AUTO V.AUX TAPE MULTI PRO LOGIC DIGITAL DIGITAL ANALOG G2~G16 TUNED STEREO PHONO TUNER MULTI AUTO V.AUX TAPE PRO LOGIC DIGITAL DIGITAL ANALOG Pin Assignment PIN NO.
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AVR-2801/981 PRINTED WIRING BOARDS 3 7 6 3 1 5 1 5 0 1U-3323 AUDIO / DSP P .W.B. UNIT Ass'y COMPONENT SIDE 1 3 9 4 2 2 9 6 5 1 3 w w w u 1 6 3...
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AVR-2801/981 3 7 6 3 1 5 1 5 0 FOIL SIDE 1 3 9 4 2 2 9 6 5 1 3 w w w u 1 6 3 http://www.xiaoyu163.com...
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AVR-2801/981 3 7 6 3 1 5 1 5 0 1U-3233 EXT. IN P .W.B. UNIT Ass'y COMPONENT SIDE 1 3 9 4 2 2 9 6 5 1 3 w w w u 1 6 3 http://www.xiaoyu163.com...
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AVR-2801/981 3 7 6 3 1 5 1 5 0 FOIL SIDE 1 3 9 4 2 2 9 6 5 1 3 w w w u 1 6 3 http://www.xiaoyu163.com...
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AVR-2801/981 3 7 6 3 1 5 1 5 0 1U-3321 CONTROL P .W.B. UNIT Ass'y COMPONENT SIDE 1 3 9 4 2 2 9 6 5 1 3 w w w u 1 6 3 http://www.xiaoyu163.com...
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AVR-2801/981 3 7 6 3 1 5 1 5 0 FOIL SIDE 1 3 9 4 2 2 9 6 5 1 3 w w w u 1 6 3 http://www.xiaoyu163.com...
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AVR-2801/981 3 7 6 3 1 5 1 5 0 1U-3235 REGULATOR P .W.B. UNIT Ass'y 1U-3236 VOLTAGE SELECT P .W.B. UNIT Ass'y (Asia model & Hong Kong model only) COMPONENT SIDE 1 3 9 4 2 2 9 6 5 1 3...
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AVR-2801/981 3 7 6 3 1 5 1 5 0 FOIL SIDE 1 3 9 4 2 2 9 6 5 1 3 w w w u 1 6 3 http://www.xiaoyu163.com...
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AVR-2801/981 3 7 6 3 1 5 1 5 0 1U-3232 POWER P .W.B. UNIT Ass'y COMPONENT SIDE 1 3 9 4 2 2 9 6 5 1 3 w w w u 1 6 3 http://www.xiaoyu163.com...
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AVR-2801/981 3 7 63 1515 0 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.
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AVR-2801/981 3 7 63 1515 0 Note: The symbols in the column "Remarks" indicate the following destinations. PARTS LIST OF P.W.B. UNIT E3: U.S.A. & Canada model E1C: China model EU: U.S.A. model (AVR-981) E1H: Hong Kong model 1U-3323 AUDIO/DSP UNIT ASS'Y E2: Europe model EUT: Taiwan R.O.C.
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AVR-2801/981 3 7 63 1515 0 Ref. No. Part No. Part Name Remarks Ref. No. Part No. Part Name Remarks R721,722 247 2008 984 Carbon chip 3.9 kohm 1/16W RM73B--392JT R875,876 247 2009 983 Carbon chip 10 kohm 1/16W...
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AVR-2801/981 3 7 63 1515 0 Ref. No. Part No. Part Name Remarks Ref. No. Part No. Part Name Remarks C311~313 257 0511 904 Ceramic chip 0.01µF/50V CK73F1H103ZT C849 254 4524 930 Electrolytic 0.47µF/50V CE04W1HR47MT SMG/RE3 C850~852 257 0511 904 Ceramic chip 0.01µF/50V...
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AVR-2801/981 3 7 63 1515 0 1U-3232 POWER UNIT ASS'Y Ref. No. Part No. Part Name Remarks Q'ty Ref. No. Part No. Part Name Remarks SEMICONDUCTORS GROUP OTHER PARTS GROUP IC401 262 2692 001 IC BU4052BC CW051 205 0885 008 5P connector socket (TUC-P)
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AVR-2801/981 3 7 63 1515 0 Ref. No. Part No. Part Name Remarks Ref. No. Part No. Part Name Remarks 256 1058 939 Metalized 0.047 µF/50V R605~608 244 2052 957 Metal oxide 5.6 kohm 1W RS14B3A562JNBS(S) C525,526 CF93A1H473J (JL)
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AVR-2801/981 3 7 63 1515 0 1U-3233 EXT. UNIT ASS'Y Ref. No. Part No. Part Name Remarks Q'ty Ref. No. Part No. Part Name Remarks SEMICONDUCTORS GROUP OTHER PARTS GROUP AC501 203 3976 002 AC outlet (2P) for E3,EU,EUT...
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AVR-2801/981 3 7 63 1515 0 Ref. No. Part No. Part Name Remarks Ref. No. Part No. Part Name Remarks R114 247 0006 917 Carbon chip 300 ohm 1/10W RM73B--301JT R373,374 247 0018 905 Carbon chip 0 ohm 1/10W...
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AVR-2801/981 3 7 63 1515 0 Ref. No. Part No. Part Name Remarks Ref. No. Part No. Part Name Remarks R703,704 247 0006 946 Carbon chip 390 ohm 1/10W RM73B--391JT C110~113 257 0012 966 Ceramic chip 0.01µF/50V CK73F1H103ZT R705,706...
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AVR-2801/981 3 7 63 1515 0 1U-3321 CONTROL UNIT ASS'Y Ref. No. Part No. Part Name Remarks Ref. No. Part No. Part Name Remarks C823 255 1265 923 Mylar film 8200pF/50V CQ93M1H822JT(B) SEMICONDUCTORS GROUP C829,830 254 4538 900 Electrolytic 10µF/16V...
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AVR-2801/981 3 7 63 1515 0 Ref. No. Part No. Part Name Remarks Ref. No. Part No. Part Name Remarks R111,112 247 2009 909 Carbon chip 4.7 kohm 1/16W RM73B--472JT (1608) R350 247 2009 983 Carbon chip 10 kohm 1/16W...
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AVR-2801/981 3 7 63 1515 0 Ref. No. Part No. Part Name Remarks Ref. No. Part No. Part Name Remarks R928 247 2009 983 Carbon chip 10 kohm 1/16W RM73B--103JT C348 254 4538 939 Electrolytic 47µF/16V CE04W1C470MT SMG/RE3 R929...
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AVR-2801/981 3 7 63 1515 0 Ref. No. Part No. Part Name Remarks Ref. No. Part No. Part Name Remarks Q'ty C919 254 4522 958 Electrolytic 100µF/35V CE04W1V101MT SMG/RE3 OTHER PARTS GROUP C920 257 0511 904 Ceramic chip 0.01µF/50V...
AVR-2801/981 3 7 63 1515 0 1U-3235 REGULATOR UNIT ASS'Y Ref. No. Part No. Part Name Remarks Ref. No. Part No. Part Name Remarks D501 276 0432 903 Diode 1SS270A TE (TAPE) SEMICONDUCTORS GROUP D503~505 276 0432 903 Diode 1SS270A TE (TAPE)
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AVR-2801/981 3 7 63 1515 0 Ref. No. Part No. Part Name Remarks Ref. No. Part No. Part Name Remarks R371 247 0007 945 Carbon chip 1 kohm 1/10W RM73B--102JT R546 247 0011 928 Carbon chip 39 kohm 1/10W...
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AVR-2801/981 3 7 63 1515 0 Ref. No. Part No. Part Name Remarks Ref. No. Part No. Part Name Remarks CAPACITORS GROUP C507,508 257 0010 900 Ceramic chip 0.01µF/50V CK73B1H103KT C509 257 0002 947 Ceramic chip 12pF/50V CC73SL1H120JT C301,302 254 4195 916 Electrolytic 4.7µF/35V...
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AVR-2801/981 3 7 63 1515 0 Ref. No. Part No. Part Name Remarks Ref. No. Part No. Part Name Remarks Q'ty C721,722 255 1264 908 Mylar film 1000pF/50V CQ93M1H102JT(B) OTHER PARTS GROUP for E2 CF501 261 0135 907 Ceramic filter MA8...
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AVR-2801/981 3 7 63 1515 0 1U-3236 VOLTAGE SELECT UNIT ASS'Y Ref. No. Part No. Part Name Remarks Q'ty Ref. No. Part No. Part Name Remarks Q'ty S902~905 212 5611 903 Tact switch OTHER PARTS GROUP CX042 205 0581 030 4P VH connector base...
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AVR-2801/981 Note: The symbols in the column "Remarks" indicate the following destinations. 3 7 6 3 1 5 1 5 0 E3: U.S.A. & Canada model E1C: China model EU: U.S.A. model (AVR-981) E1H: Hong Kong model PARTS LIST OF EXPLODED VIEW E2: Europe model EUT: Taiwan R.O.C.
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AVR-2801/981 3 7 6 3 1 5 1 5 0 WARNING: Parts marked with this symbol have critical characteristics. E2,E1 model Use ONLY replacement parts recommended by the manufacturer. E1,E1H model 1 3 9 4 2 2 9 6 5 1 3...
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AVR-2801/981 3 7 63 1515 0 PACKING VIEW L 13942296513 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-981) E1H: Hong Kong model E2: Europe model EUT: Taiwan R.O.C.
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http://www.xiaoyu163.com 3 7 6 3 1 5 1 5 0 1 3 9 4 2 2 9 6 5 1 3 w w w u 1 6 3 http://www.xiaoyu163.com...
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http://www.xiaoyu163.com 3 7 6 3 1 5 1 5 0 1 3 9 4 2 2 9 6 5 1 3 w w w u 1 6 3 http://www.xiaoyu163.com...
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http://www.xiaoyu163.com 3 7 6 3 1 5 1 5 0 1 3 9 4 2 2 9 6 5 1 3 w w w u 1 6 3...