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STEREO RECEIVER
TX-8020(B)/(S)
MODEL
Black and Silver models
B MDC
120V AC, 60Hz
B MPP, S MPP
230V AC, 50Hz
Features
50 Watts/Channel @ 8 Ω (FTC) (For North American Model)
90 Watts/Channel @ 6 Ω (IEC) (For European Model)
WRAT (Wide Range Amplifier Technology)
Discrete Amplifier Output Stage Circuitry
Massive EI Transformer
High-Current, Low-Impedance Drive
Direct Mode
5 Analog Audio Inputs and 1 Output
3 Digital Audio Inputs (1 Optical, 2 Coaxial) (European Model only)
Phono Input for Turntable Connection
Independent Bass, Treble, and Balance Controls
Subwoofer Pre-Out
Speaker A/B Terminals
Remote Interactive (RI) Input for Integrated Control of Compatible
Headphone Jack
40 FM/AM Random Presets
Preset Station Naming (Up to 8 Characters)
RDS (PS/PTY/RT) (European Model only)
3-Mode Display Dimmer (Normal/Dim/Dimmer)
Sleep Timer (via Remote)
Battery-Free Memory Back-up
Full-Sized, Full-Function RI Remote Control
Onkyo Components
TX-8020
Ref. No. 4449
082013
RC-875S
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Table of Contents
Related Manuals for Onkyo TX-8020B
Summary of Contents for Onkyo TX-8020B
- Page 1 Independent Bass, Treble, and Balance Controls Subwoofer Pre-Out Speaker A/B Terminals Remote Interactive (RI) Input for Integrated Control of Compatible Onkyo Components Headphone Jack 40 FM/AM Random Presets Preset Station Naming (Up to 8 Characters) RDS (PS/PTY/RT) (European Model only)
- Page 2 TX-8020 SERVICE PROCEDURE PRECAUTIONS 1. Ground for the work-desk. Place a conductive sheet such as a sheet of copper (with impedance lower than 10Mohm) on the work-desk and place the set on the conductive sheet so that the chassis. 2. Grounding for the test equipments and tools. Test equipments and toolings should be grounded in order that their ground level is the same the ground of the power source.
- Page 3 TX-8020 OPERATION CHECK-1 1.VERSION CONFIRMATION Press [Display] + [Standby] The version of main micom is displayed at FL tube. 2.CONFIRMATIONS OF OPERATIONS Protect operation check 2-1. Voltage protection a. Set to 1-05 of the TEST MODE Refer to “4.TEST MODE” in OPERATIO CHECK-2 b.
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Page 4: Test Mode
TX-8020 OPERATION CHECK-2 3.INITIAL SETTING FOR SHIPPING a. Initialization of memories. Press ON/STANDBY button while pressing down TUNING MODE button when the unit is POWER ON, then the FL displays "CLEAR", and turn to STAND-BY. Remove power cord from power line. b. - Page 5 TX-8020 OPERATION CHECK-3 4. TEST MODE Following frequencies are automatically written in the preset memory, when the unit goes into test mode. PRESET MP*,MG* MW*(10k) MW*(9k) 89.9MHz 89.90MHz 89.90MHz 97.9MHz 97.90MHz 97.90MHz 98.9MHz 98.90MHz 98.90MHz 107.1MHz 107.10MHz 107.10MHz 107.9MHz 107.90MHz 107.90MHz 100.1MHz 100.10MHz...
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Page 6: Exploded Views
TX-8020 EXPLODED VIEWS-1 OVERALL <NOTE> Please use the 3TTB+8B(BC) is screwed to the place that is not specified. Black Model 3TTB+8B(3BC) A340 x 9 pcs. Refer to `Fig-1` A401 U0035 Silver Model 3TTB+8B(3CM)SR x 9 pcs. Fig-1 P901 A102 A101 U0040 Rear Panel P403... -
Page 7: Exploded View Parts List
(B) (Not Bent) 28210089AZ A401 LABEL (COVER) 29390767 A401 LABEL (COVER) 29390767 A421 P RIVET JB-407A-C 880052 A402 LABEL HOOKUP-ONKYO 29363194 [TRANS COIL] [TRANS COIL] T901 P TRANS NPT-1618P 2302046 T901 P TRANS NPT-1618D 2302045 [SW TRM] [SW TRM] F6401 FUSE... - Page 8 TX-8020 EXPLODED VIEWS-3 <Note> NOTE : THE COMPONENTS IDENTIFIED BY THE MARK EXPLODED VIEW PARTS LIST Parts marked by "NSP" are generally unavailable because ! ARE CRITICAL FOR RISK OF FIRE AND they are not in our Master Spare Parts List. ELECTRIC SHOCK.
- Page 9 TX-8020 TX-8020 SCHEMATIC DIAGRAMS-01(PART-1) ASP SECTION MODEL NO. TX-8020 SCHEMATIC DIAGRAM (PART-1) ASP_SECTION TX-8020 DAC_OUTPUT(MPP ONLY) TO BADG-1474 CONVERSION CONVERSION CONVERSION LIST:0ohm LIST:0ohm LIST:0ohm TUNER PACK FROM BADG-1474(PART11) FROM BADG-1474(PART11) FROM BADG-1474(PART11) H49/H59 TUNER PACK TUNER 2.5mm FFC CABLE P101B P5502B BD To BD P5503B...
- Page 10 TX-8020 SCHEMATIC DIAGRAMS-02(PART-2) AMP SECTION MODEL NO. TX-8020 SCHEMATIC DIAGRAM (PART-2) AMP SECTION HT-R592/ TX-NR525/ HT-RC550/ TX-NR626/ HT-RC560/ DTR-30.5++ P6401B P6402B CRIMP AS CRIMP (RED) (WHI) EU/EX +B1C +57V(HT-R592/TX-NR525) +B1C Table:W L6000-02 +62V(TX-NR626/DTR-30.5) R6430-32 AV=29dB AV=29dB FL/FR/C AMP J6700-02 R6082 Q6052 R6083 Q6053...
- Page 11 TX-8020 SCHEMATIC DIAGRAMS-03(PART-3) AMP(CLASS-A) SECTION Model No. TX-8020 SCHEMATIC DIAGRAM (PART-3) BACLA-1318-2 U0020 AMP(CLASS A) PC BOARD TX-NR525(-1B) R5183 HT-R592(-1A) (1/4W) HT-RC550 (1/4W) R6023 Q6033 CLASS A R5160-5166 KTD2061-Y R5170-5176 NFSL Q5033 INA6006AP1-T111-1W GNDIN_SL IN_SL R5200-5206 +B1SL R5130-5136 C5013 Q5003 (1/4W) -B1SL Q5013...
- Page 12 TX-8020 SCHEMATIC DIAGRAMS-04(PART-4) AMP(THERMAL SENSOR) SECTION Model No.TX-8020 SCHEMATIC DIAGRAM (PART-4) AMP SECTION U0012 THERMAL SENSOR PC BOARD BAETC-1477 C6300 SENSER Q6300 LM61CIZ Q6300A (PTH) 1.5mm JUMPER LEAD P501A SOCKET AS SN 2009991287UL TO BADG-1474 NSAS-3P2098 L=350mm TITLE DRAWING No. TX-8020 RC-202985 AMP SECTION(PART-4)
- Page 13 TX-8020 SCHEMATIC DIAGRAMS-05(PART-5) TERMINAL(TRANS) SECTION Model No.TX-8020 SCHEMATIC DIAGRAM (PART-5) TRANS SECTION BAETC-1475 U0011 TERMINAL(TRANS) PC BOARD P960 FLAC1 2.5mm Pitch FLAC2 P961 SEC3_1 SOCKET_AS SN 2009991399UL P962 L=350mm TP6007 SEC3_2 PWB_SIDE PLUG NPLG-7P137 SEC2_1 P963 SN 25055137 SEC2_2 TP6004 P964 SEC2_1 P965...
- Page 14 TX-8020 SCHEMATIC DIAGRAMS-06(PART-6) PHONE JACK SECTION MODEL NO. TX-8020 SCHEMATIC DIAGRAM (PART-6) HEAD PHONE_SECTION BAETC-1440 U0014 PHONE JACK PC BOARD HEAD PHONE L5501 BK1608LM182-T HP_L L5502 BK1608LM182-T HP JACK L5503 BK1608LM182-T HP-R GNDMPU HP_SW 1 2 3 4 E5501 NEJITANSI ST3 TITLE DRAWING No.
- Page 15 TX-8020 SCHEMATIC DIAGRAMS-07(PART-7) DISPLAY SECTION MODEL NO. TX-8020 SCHEMATIC DIAGRAM (Part-7) DISPLAY SECTION BADIS-1435 U0030 DISPLAY PC BOARD Q701 FL HOLDER SN27191222C HNA-16SM25T R7011 Ef(4.6Vac) FLAC2 R7014 R7013 FL_AC1 2SC2881-Y(TE12L,CF) R7020 RL1N4003 Q7010 R7015 R7016 D7009 D7110 RL1N4003 1/2W (-32V) FLAC2 L7532 C727...
- Page 16 TX-8020 SCHEMATIC DIAGRAMS-08(PART-8) TONE/ BALANCE/ SELECTOR SECTION MODEL NO. TX-8020 SCHEMATIC DIAGRAM (Part-8) DISPLAY SECTION BAETC1442 +3.3VMPU C751 C752 223K 223K R752 +3.3VMPU 470k +3.3VMPU GNDDIS R753 GNDDIS 20KB GNDDIS GNDDIS BALANCE BALANCE BALANCE C753 TREBLE_B TREBLE_B GNDDIS TREBLE_A 223K TREBLE_A +3.3VDIS +3.3VDIS...
- Page 17 TX-8020 SCHEMATIC DIAGRAMS-09(PART-9) SWITCH(STANDBY) SECTION MODEL NO. TX-8020 SCHEMATIC DIAGRAM (PART-9) DISPLAY SECTION BADIS-1436 U0031 SWITCH(STANDBY) PC BOARD R718 LEDSTBY GNDDIS KEY0_2 STBY TITLE DRAWING N TX-8020 RC-202985 DISPLAY SECTION (Part-9) DESIGN CHECK APPROV H.Suda K.Ikeda S.Murayama...
- Page 18 TX-8020 SCHEMATIC DIAGRAMS-10(PART-10) TERMINAL(SPEAKER) SECTION MODEL NO. TX-8020 SCHEMATIC DIAGRAM (PART-10) SPEAKER TERMINAL_SECTION U0034 TERMINAL(SPEAKER) PC BOARD BATRM-1473 SP_RB SP_LB RL_GND SPSLE R6804 NTM-4PDMNRR414 SPLE 1/2W SPLE SPSLE SP_RA SP_LA SPSLE NTM-4PDMNRR414 SPLE SPSL C6801 103J C6803 103J R6801 C6802 R6802 103J SW_OUT...
- Page 19 TX-8020 SCHEMATIC DIAGRAMS-11(PART-11) MPU SECTION MODEL No. TX-8020 SCHEMATIC DIAGRAM Part-11 DG/MICON SECTION TO BCTRM-1473 TO Display P7000A NSCT-5P876 P701B NSCT-33P2126 1 2 3 4 5 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 Q7053 BADG-1474 KRA107S...
- Page 20 TX-8020 SCHEMATIC DIAGRAMS-12(PART-12) POWER SUPPLY SECTION MODEL NO.TX-8020 SCHEMATIC DIAGRAM(PART-12) PS SECTION U0036 POWER SUPPLY PC BOARD THE COMPONENTS IDENTIFIED MARK ARE CRITICAL FOR SAFETY, REPLACE ONLY WITH PART NUMBER SPECFIED. BAPS-1476 *R954 VOLTAGE (MEASURED WITH VOLTMETER) IS DC VOLTAGE. (NO INPUT SIGNAL) R955 D Type 15k ELECTRLYTIC CAPACITORS (...
- Page 21 TX-8020 SCHEMATIC DIAGRAMS-13(PART-13) TUNER SECTION MODEL NO. TX-8020 SCHEMATIC DIAGRAM (PART-13) TUNER SECTION BARF-1450 U0040 TUNER PC BOARD VDDRF VDD2 +3.3V 332K GND1 VDD2 100D VDDRF 473K 330n 090D 101J FRF1 RFGND VDD1 +3.3V GNDRF IISD R9 100 105K LOUT ARF1 LOUT ROUT...
- Page 22 TX-8020 SCHEMATIC DIAGRAMS-14(PART-14) DIGITAL SECTION Model No. TX-8020 (MPP) SCHEMATIC DIAGRAM (PART-14) Digital Section S7903 S7902 S7901 NSS-22203 NSS-22203 NSS-22203 NSCT-23P2116 P403A BADG-1269 U0050 DIGITAL PC BOARD TX-8020 MPP ONLY +12V R7912 R7906 R7903 R7909 C7502 R7503 104Z R7907 R7910 L7501 BK1608HS102-T C7501...
- Page 23 29100250A A662 TAPE (SEROHAN)NITTO NO.29 29110149 A662 TAPE (SEROHAN)NITTO NO.29 29110149 A801 WRNTY CARD (ONKYO) 29365156 A801 INST SHEET WEEE delete onkyo 29355793B A802 SHEET (FLYER-US) 29380162 A802 SHEET (FLYER-EU) 29380163 A821 REMO CON RC-875S 24140875 A821 REMO CON...