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1、Hi-Fi Component SERVICE MANUAL MODEL AVR-3801 AV SURROUND RECEIVER ? Some illustrations using in this service manual are slightly different from the actual set. RadioFans.CN AVR-3801 61 12345678 A B C D E BLOCK DIAGRAM F G H 91011 RadioFans.CN AVR-3801 62 1110987654 A B C D E WIRING DIAGRAM F G H 32
2、1 RadioFans.CN 63 12345678 A B C D E SCHEMATIC DIAGRAMS (1/15) F G H 91011 AVR-3801 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 SU
3、BJECT TO CHANGE WITHOUT PRIOR NOTICE. WARNING: Parts marked with this symbol have critical characteristics. Use ONLY replacement parts recommended by the manufacture. CAUTION: Before returning the unit to the customer, make sure you make either (1) a leakage current check or (2) a line to chassis re
4、sistance check. If the leakage current exceeds 0.5 milliamps, or if the resistance from chassis to either side of the power card is less than 460 kohms, the unit is defective. WARNING: DO NOT return the unit to the customer until the problem is located and corrected. SCHEMATIC DIAGRAMS (1/15) 1U-332
5、0 (1/4) AUDIO/DSP UNIT - B LINE + B LINE SIGNAL - 15V + 15V A C B D RadioFans.CN 63 12345678 A B C D E SCHEMATIC DIAGRAMS (1/15) F G H 91011 AVR-3801 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 A
6、RE MEASUERD AT NO SIGNAL INPUT CONDITION. CIRCUIT AND PARTS ARE SUBJECT TO CHANGE WITHOUT PRIOR NOTICE. WARNING: Parts marked with this symbol have critical characteristics. Use ONLY replacement parts recommended by the manufacture. CAUTION: Before returning the unit to the customer, make sure you m
7、ake either (1) a leakage current check or (2) a line to chassis resistance check. If the leakage current exceeds 0.5 milliamps, or if the resistance from chassis to either side of the power card is less than 460 kohms, the unit is defective. WARNING: DO NOT return the unit to the customer until the
8、problem is located and corrected. SCHEMATIC DIAGRAMS (1/15) 1U-3320 (1/4) AUDIO/DSP UNIT - B LINE + B LINE SIGNAL - 15V + 15V RadioFans.CN 63 12345678 A B C D E SCHEMATIC DIAGRAMS (1/15) F G H 91011 AVR-3801 NOTICE ALL RESISTANCE VALUES IN OHM. k=1,000 OHM M=1,000,000 OHM ALL CAPACITANCE VALUES IN M
9、ICRO 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. WARNING: Parts marked with this symbol have critical characteristics. Use ONLY replacement parts recommended by the manufacture. CAUTION:
10、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. If the leakage current exceeds 0.5 milliamps, or if the resistance from chassis to either side of the power card is less than 460 kohms, the unit is defective.
11、WARNING: DO NOT return the unit to the customer until the problem is located and corrected. SCHEMATIC DIAGRAMS (1/15) 1U-3320 (1/4) AUDIO/DSP UNIT - B LINE + B LINE SIGNAL - 15V + 15V RadioFans.CN 63 12345678 A B C D E SCHEMATIC DIAGRAMS (1/15) F G H 91011 AVR-3801 NOTICE ALL RESISTANCE VALUES IN OH
12、M. 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. WARNING: Parts marked with this symbol have critical characteristics. Use ONLY r
13、eplacement parts recommended by the manufacture. CAUTION: 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. If the leakage current exceeds 0.5 milliamps, or if the resistance from chassis to either side of the
14、power card is less than 460 kohms, the unit is defective. WARNING: DO NOT return the unit to the customer until the problem is located and corrected. SCHEMATIC DIAGRAMS (1/15) 1U-3320 (1/4) AUDIO/DSP UNIT - B LINE + B LINE SIGNAL - 15V + 15VRadioFans.CN 63 12345678 A B C D E SCHEMATIC DIAGRAMS (1/15
15、) F G H 91011 AVR-3801 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. WARNING: Parts marked w
16、ith this symbol have critical characteristics. Use ONLY replacement parts recommended by the manufacture. CAUTION: 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. If the leakage current exceeds 0.5 milliamps,
17、 or if the resistance from chassis to either side of the power card is less than 460 kohms, the unit is defective. WARNING: DO NOT return the unit to the customer until the problem is located and corrected. SCHEMATIC DIAGRAMS (1/15) 1U-3320 (1/4) AUDIO/DSP UNIT - B LINE + B LINE SIGNAL - 15V + 15VRa
18、dioFans.CN AVR-3801 64 1110987654 A B C D E SCHEMATIC DIAGRAMS (2/15) F G H 321 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 SUBJEC
19、T TO CHANGE WITHOUT PRIOR NOTICE. WARNING: Parts marked with this symbol have critical characteristics. Use ONLY replacement parts recommended by the manufacture. CAUTION: Before returning the unit to the customer, make sure you make either (1) a leakage current check or (2) a line to chassis resist
20、ance check. If the leakage current exceeds 0.5 milliamps, or if the resistance from chassis to either side of the power card is less than 460 kohms, the unit is defective. WARNING: DO NOT return the unit to the customer until the problem is located and corrected. + B LINE SIGNAL SCHEMATIC DIAGRAMS (
21、2/15) 1U-3320 (2/4) AUDIO DSP UNIT + 5V + 5V + 3.3V A C B D RadioFans.CN AVR-3801 64 1110987654 A B C D E SCHEMATIC DIAGRAMS (2/15) F G H 321 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 MEASU
22、ERD AT NO SIGNAL INPUT CONDITION. CIRCUIT AND PARTS ARE SUBJECT TO CHANGE WITHOUT PRIOR NOTICE. WARNING: Parts marked with this symbol have critical characteristics. Use ONLY replacement parts recommended by the manufacture. CAUTION: Before returning the unit to the customer, make sure you make eith
23、er (1) a leakage current check or (2) a line to chassis resistance check. If the leakage current exceeds 0.5 milliamps, or if the resistance from chassis to either side of the power card is less than 460 kohms, the unit is defective. WARNING: DO NOT return the unit to the customer until the problem
24、is located and corrected. + B LINE SIGNAL SCHEMATIC DIAGRAMS (2/15) 1U-3320 (2/4) AUDIO DSP UNIT + 5V + 5V + 3.3V RadioFans.CN AVR-3801 64 1110987654 A B C D E SCHEMATIC DIAGRAMS (2/15) F G H 321 NOTICE ALL RESISTANCE VALUES IN OHM. k=1,000 OHM M=1,000,000 OHM ALL CAPACITANCE VALUES IN MICRO FARAD.
25、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. WARNING: Parts marked with this symbol have critical characteristics. Use ONLY replacement parts recommended by the manufacture. CAUTION: Before retur
26、ning the unit to the customer, make sure you make either (1) a leakage current check or (2) a line to chassis resistance check. If the leakage current exceeds 0.5 milliamps, or if the resistance from chassis to either side of the power card is less than 460 kohms, the unit is defective. WARNING: DO
27、NOT return the unit to the customer until the problem is located and corrected. + B LINE SIGNAL SCHEMATIC DIAGRAMS (2/15) 1U-3320 (2/4) AUDIO DSP UNIT + 5V + 5V + 3.3V RadioFans.CN AVR-3801 64 1110987654 A B C D E SCHEMATIC DIAGRAMS (2/15) F G H 321 NOTICE ALL RESISTANCE VALUES IN OHM. k=1,000 OHM M
28、=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. WARNING: Parts marked with this symbol have critical characteristics. Use ONLY replacement parts
29、 recommended by the manufacture. CAUTION: 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. If the leakage current exceeds 0.5 milliamps, or if the resistance from chassis to either side of the power card is le
30、ss than 460 kohms, the unit is defective. WARNING: DO NOT return the unit to the customer until the problem is located and corrected. + B LINE SIGNAL SCHEMATIC DIAGRAMS (2/15) 1U-3320 (2/4) AUDIO DSP UNIT + 5V + 5V + 3.3V RadioFans.CN AVR-3801 64 1110987654 A B C D E SCHEMATIC DIAGRAMS (2/15) F G H
31、321 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. WARNING: Parts marked with this symbol hav
32、e critical characteristics. Use ONLY replacement parts recommended by the manufacture. CAUTION: 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. If the leakage current exceeds 0.5 milliamps, or if the resistan
33、ce from chassis to either side of the power card is less than 460 kohms, the unit is defective. WARNING: DO NOT return the unit to the customer until the problem is located and corrected. + B LINE SIGNAL SCHEMATIC DIAGRAMS (2/15) 1U-3320 (2/4) AUDIO DSP UNIT + 5V + 5V + 3.3V RadioFans.CN 65 12345678
34、 A B C D E SCHEMATIC DIAGRAMS (3/15) F G H 91011 AVR-3801 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 PR
35、IOR NOTICE. WARNING: Parts marked with this symbol have critical characteristics. Use ONLY replacement parts recommended by the manufacture. CAUTION: 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. If the lea
36、kage current exceeds 0.5 milliamps, or if the resistance from chassis to either side of the power card is less than 460 kohms, the unit is defective. WARNING: DO NOT return the unit to the customer until the problem is located and corrected. SCHEMATIC DIAGRAMS (3/15) 1U-3320 (3/4) AUDIO/DSP UNIT + B
37、 LINE SIGNAL + 5V + 3.3V + 5V A C B D RadioFans.CN 65 12345678 A B C D E SCHEMATIC DIAGRAMS (3/15) F G H 91011 AVR-3801 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
38、 CONDITION. CIRCUIT AND PARTS ARE SUBJECT TO CHANGE WITHOUT PRIOR NOTICE. WARNING: Parts marked with this symbol have critical characteristics. Use ONLY replacement parts recommended by the manufacture. CAUTION: Before returning the unit to the customer, make sure you make either (1) a leakage curre
39、nt check or (2) a line to chassis resistance check. If the leakage current exceeds 0.5 milliamps, or if the resistance from chassis to either side of the power card is less than 460 kohms, the unit is defective. WARNING: DO NOT return the unit to the customer until the problem is located and correct
40、ed. SCHEMATIC DIAGRAMS (3/15) 1U-3320 (3/4) AUDIO/DSP UNIT + B LINE SIGNAL + 5V + 3.3V + 5V RadioFans.CN 65 12345678 A B C D E SCHEMATIC DIAGRAMS (3/15) F G H 91011 AVR-3801 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 EA
41、CH VOLTAGE AND CURRENT ARE MEASUERD AT NO SIGNAL INPUT CONDITION. CIRCUIT AND PARTS ARE SUBJECT TO CHANGE WITHOUT PRIOR NOTICE. WARNING: Parts marked with this symbol have critical characteristics. Use ONLY replacement parts recommended by the manufacture. CAUTION: Before returning the unit to the c
42、ustomer, make sure you make either (1) a leakage current check or (2) a line to chassis resistance check. If the leakage current exceeds 0.5 milliamps, or if the resistance from chassis to either side of the power card is less than 460 kohms, the unit is defective. WARNING: DO NOT return the unit to
43、 the customer until the problem is located and corrected. SCHEMATIC DIAGRAMS (3/15) 1U-3320 (3/4) AUDIO/DSP UNIT + B LINE SIGNAL + 5V + 3.3V + 5V RadioFans.CN 65 12345678 A B C D E SCHEMATIC DIAGRAMS (3/15) F G H 91011 AVR-3801 NOTICE ALL RESISTANCE VALUES IN OHM. k=1,000 OHM M=1,000,000 OHM ALL CAP
44、ACITANCE 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. WARNING: Parts marked with this symbol have critical characteristics. Use ONLY replacement parts recommended by the ma
45、nufacture. CAUTION: 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. If the leakage current exceeds 0.5 milliamps, or if the resistance from chassis to either side of the power card is less than 460 kohms, the
46、 unit is defective. WARNING: DO NOT return the unit to the customer until the problem is located and corrected. SCHEMATIC DIAGRAMS (3/15) 1U-3320 (3/4) AUDIO/DSP UNIT + B LINE SIGNAL + 5V + 3.3V + 5V RadioFans.CN 65 12345678 A B C D E SCHEMATIC DIAGRAMS (3/15) F G H 91011 AVR-3801 NOTICE ALL RESISTA
47、NCE 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. WARNING: Parts marked with this symbol have critical characteris
48、tics. Use ONLY replacement parts recommended by the manufacture. CAUTION: 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. If the leakage current exceeds 0.5 milliamps, or if the resistance from chassis to eit
49、her side of the power card is less than 460 kohms, the unit is defective. WARNING: DO NOT return the unit to the customer until the problem is located and corrected. SCHEMATIC DIAGRAMS (3/15) 1U-3320 (3/4) AUDIO/DSP UNIT + B LINE SIGNAL + 5V + 3.3V + 5V RadioFans.CN AVR-3801 66 1110987654 A B C D E SCHEMATIC DIAGRAMS (4/15) F G H 321 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
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