Onkyo TX-2100 Service Manual
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Onkyo TX-2100 Service Manual

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SERVICE MANUAL
SERVICE MANUAL
STEREO RECEIVER
MODEL TX-2100
Black model
BMDD
120 V AC, 60 Hz
SAFETY-RELATED COMPONENT
WARNING!!
COMPONENTS IDENTIFIED BY MARK
SCHEMATIC DIAGRAM AND IN THE PARTS LIST ARE
CRITICAL FOR RISK OF FIRE AND ELECTRIC SHOCK.
REPLACE THESE COMPONENTS WITH ONKYO
PARTS WHOSE PART NUMBERS APPEAR AS SHOWN
IN THIS MANUAL.
MAKE LEAKAGE-CURRENT OR RESISTANCE
MEASUREMENTS TO DETERMINE THAT EXPOSED
PARTS ARE ACCEPTABLY INSULATED FROM THE
SUPPLY CIRCUIT BEFORE RETURNING THE
APPLIANCE TO THE CUSTOMER.
Ref. No. 3836
POWER
INPUT SELECTOR
TAPE-1
TUNER
TAPE-2
DECK-A
TUNER
GROUP
DISC
REMOTE CONTROLLER RC-330S
RC-330S
ON THE
TX-2100
102004
SLEEP
PHONO
CD
DECK-B
PRESET
MUTING
CD
VOLUME

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Summary of Contents for Onkyo TX-2100

  • Page 1 COMPONENTS IDENTIFIED BY MARK ON THE SCHEMATIC DIAGRAM AND IN THE PARTS LIST ARE CRITICAL FOR RISK OF FIRE AND ELECTRIC SHOCK. REPLACE THESE COMPONENTS WITH ONKYO PARTS WHOSE PART NUMBERS APPEAR AS SHOWN IN THIS MANUAL. MAKE LEAKAGE-CURRENT OR RESISTANCE...

  • Page 2: Specifications

    TX-2100 SPECIFICATIONS Amplifier Section General Power Output Front L/R Power Supply AC 120 V, 60 Hz 50 W + 50 W Power Comsumption 180 W (8ohm , 20 Hz-20 kHz, FTC) Stand-by Power Comsumption Dynamic Power 105 W + 105 W (4 ohm) 1.35 W...

  • Page 3: Service Procedures

    TX-2100 SERVICE PROCEDURES 1. Replacing the fuse This symbol located near the fuses indicates that the fuse used is fast operating type. For continued protection against fire hazard, replace with same type fuse. For fuse rating refer to the marking adjacent to the symbol.

  • Page 4: Exploded View

    TX-2100 EXPLODED VIEW A202 P901 A303 A302 A204 A202 A301 A300 P102 A030 A016 Q522 Q524 Q523 A301 Q521 A026 A024 A024 A021 A203 A013 A201 D911 P711 A023 A024 A024 E801 A202 F901 A024 A041 A002 A020 A004 A002...

  • Page 5: Block Diagram

    TX-2100 BLOCK DIAGRAM R409,R415 BASS,TREBLE VOLUME HEADPHONE Q491 MUTE R393 BALANCE RL592 VOLUME L-CH Q302 POWER AMP. SELECTOR SWITCH Q525 RIGHT Q592 R410,R416 CURRENT SPEAKER B BASS,TREBLE DET. RELAY SW SPEAKERS R-CH TUNER POWER AMP. PACK Q492 MUTE Q591 Q581,582...

  • Page 6: Schematic Diagram

    TX-2100 SCHEMATIC DIAGRAM 1 DISPLAY SECTION HNA-12MM49 OR 12-BT-102GK Q702 Q706 R707 100K 2SC1740S R706 10K*12 R706 Q705 2SC1740S 100K C724 103Z STAND-BY D709 SEL4110R R712 D704 R777 2.2K POWER R758 SPARL R759 R715 SPBRL R789 F-MUT R790 T-MUT D710...
  • Page 7 TX-2100 SCHEMATIC DIAGRAM 1 DISPLAY SECTION NADIS-8371-1 NAETC-8373-1 R706 10K*12 P503 D721 PHONES C576 102K D720 P700 L702,L703 NCH-1452 L703 D712 10/50 C707 10/50 C575 C750 C706 Q703 102K 102K DTC144ES L702 R703 100 C704 D703 1/50 MTZJ9.1C D702 U701...

  • Page 8: Amplifier Section

    TX-2100 SCHEMATIC DIAGRAM 2 AMPLIFIER SECTION Q301(1/2) NJM4558D-X NAAR-5864-5 C303 10/50 PHONO C313 EQUALIZER 10/50 C309 622J C311 R301 182J R309 R353 R311 120K 390K TREBLE BASS BALANCE R310 R354 R312 390K 120K Q401(2/2) C401 Q402(1/2) R391 R401 C312 C407...
  • Page 9 TX-2100 SCHEMATIC DIAGRAM 2 AMPLIFIER SECTION RL1N4003 OR 1SR139-100 OR GP104003E RL592 SPEAKERS R563 D501 2.2 (1/2W) (1/2W) 39.3 39.3 39.8 37.9 41.3 Q505 Q511 Q583 Q521 RL591 2SA949 2SA992 2SA949 2SC5197 Q517 R583 2SC5171 (1/2W) Q525 2SC1845 R553 3.3K...
  • Page 10 TX-2100 SCHEMATIC DIAGRAM 1 DISPLAY SECTION NADIS-8371-1 NAETC-8373-1 Q702 HNA-12MM49 OR 12-BT-102GK Q706 R707 100K 2SC1740S R706 10K*12 P503 D721 R706 Q705 PHONES C576 2SC1740S 100K 102K D720 P700 L702,L703 NCH-1452 L703 D712 10/50 C707 10/50 C575 C750 Q703 C706...
  • Page 11 TX-2100 SCHEMATIC DIAGRAM 2 AMPLIFIER SECTION NAAR-5864-5 Q301(1/2) NJM4558D-X RL1N4003 OR 1SR139-100 OR GP104003E RL592 SPEAKERS C303 D501 R563 PHONO 10/50 2.2 (1/2W) (1/2W) C313 EQUALIZER 39.3 39.3 39.8 37.9 10/50 41.3 C309 Q505 Q511 Q583 622J C311 Q521 2SA949...
  • Page 12 TX-2100 WIRING VIEW P501 P302 P301 Terminal RI PC board ass'y SP TERMINAL T2-P T2-R T1-P T1-R PHONO NAETC-8377 JL711b Tuner unit JL961b Main circuit PC board ass'y NAAR-5864 P522 RIGHT Connection PC board ass'y R534 R-IID Primary circuit PC board ass'y...
  • Page 13 TX-2100 PRINTED CIRCUIT BOARD VIEW FROM SOLDERING SIDE Q Q 52 D 11 C5 5 87 J409 J334 4 J426 J426 7 7 7 J3 3 65 C916 C915 J429 C915 15 5 C916 P371 P371 C942 NAETC-5865-5A,Volume PC board ass'y...
  • Page 14 TX-2100 PRINTED CIRCUIT BOARD VIEW FROM SOLDERING SIDE NAETC-8373-1A, H ad i al R7 7 39 R742 R7 7 42 R742 R743 R752 R752 U U SA S961 S961 P961 C7 7 13 J703 J70 0 2 371A C C 715...
  • Page 15 TX-2100 PRINTED CIRCUIT BOARD VIEW FROM SOLDERING SIDE P592 C C 51 J409 J334 4 J426 J426 7 7 7 J3 3 65 J314 4 4 C916 916a C915 J429 C915 15 5 C916 P371 P371 J336 J375 J3 3 75...
  • Page 16 TX-2100 PRINTED CIRCUIT BOARD VIEW FROM SOLDERING SIDE Q Q 521 D 11 J472 J458 NAETC-5865-5A, olume PC board ass'y R921 R921 R922 J991 J444 444 4 J J 993 1 1 7 NAETC-5866-5A,Secondary terminal PC board ass'y 23 3...
  • Page 17 TX-2100 PRINTED CIRCUIT BOARD VIEW FROM SOLDERING SIDE NAETC-8373-1A, H ad i al R752 R752 R743 J719 J7 9 J703 J70 0 2 371A R7 7 5 R7 0 50 0 R751 DIREC C DIRE DOWN DOWN DOWN C708 701 1...
  • Page 18 TX-2100 PRINTED CIRCUIT BOARD VIEW FROM SOLDERING SIDE R7 7 39 R742 R7 7 42 R742 C7 7 13 C C 715 J753 3 9 9 9 76 6 8 1 1 1 Q Q 7 Q702 Q702 R R 7...
  • Page 19 TX-2100 IC BLOCK DIAGRAMS AND DESCRIPTIONS TC9273N-010(Analog Switch Array) Pin No. Symbol Description Negative power supply pin (R-ch) Digital ground pin Positive power supply pin 10bit 2/27 (L-ch) Latch 3/26 10bit 4/25 Circuit 5/24 Latch (Same 6/23 Circuit as L-ch...
  • Page 20 TX-2100 MICROPROCESSOR-CONNECTION DIAGRAM Q702 FL TUBE MNA-12MM49 Q302 ABNORMAL TUNER SELECTOR VOLTAGE SWITCH CURRENT PACKAGE DET. TC9273N-010 PROTECT RFIN DATA S.TONE VOL-UP STBY Q481 TA7291S VOL-DN Q703 U701 SYSTEM REMIN REMOTE RESET RI IN/ SYSIN SENSOR AVSS POFF INITIA- MODE2...
  • Page 21 TX-2100 MICROPROCESSOR-TERMINAL DESCRIPTIONS Pin No. Function I/O Description 7G-1G O Grid control output pin Power supply pin O Clock output pin for selector switch and PLL IC. DATA O Data output pin for selector switch and PLL IC. O Chip enable output pin for PLL IC.
  • Page 22 TX-2100 ADJUSTMENT AND CONFIRMATION PROCEDURES 1 Idling current adjustment Before Idling adjustment, turn the trimming resistors R533 and R534 to counter clockwise. Connect the DC voltmeter to terminals P521 and P522. After turn POWER to ON, adjust the trimming resistors R533 and R534 so that the reading of voltmeter becomes 2.0 mV.
  • Page 23 TX-2100 ADJUSTMENT AND CONFIRMATION PROCEDURES 2 3. Confirmation of Current detection circuit Set the unit to "TEST-1 00". Connect the differentiating circuit and apply the 200Hz square signal to CD terminal of each channel. Adjust the attenuator or Volume so that the output level becomes 35V p-p.

  • Page 24: Packing View

    TX-2100 PACKING VIEW A801 A804 A803 A802 A630 A850 A601 A805 A601 A603 A604 A610 A605 A614...
  • Page 25 TX-2100 EXPLODED VIEW-PARTS LIST NOTE: THE COMPONENTS IDENTIFIED BY MARK ! ARE CRITICAL FOR RISK OF FIRE AND ELECTRIC SHOCK. REPLACE ONLY WITH PART NUMBER SPECIFIED. REF.NO. PART NO. DESCRIPTION A001 27212708 Front panel A002 838130088 3TTB+8B,Screw A004 28326246 Knob,function...
  • Page 26 TX-2100 REF.NO. PART NO. DESCRIPTION 1B042564-5A NAAR-5864-5A,Main circuit PC board ass'y 1B042565-5A NAETC-5865-5A,Volume PC board ass'y 1B042566-5A NAETC-5866-5A,Secondary terminal PC board ass'y 1B042571-1A NADIS-8371-1A,Display circuit PC board ass'y 1B042572-1A NAPS-8372-1A,Primary circuit PC board ass'y 1B042573-1A NAETC-8373-1A,Headphone terminal PC board ass'y...

  • Page 27: Printed Circuit Board-Parts List

    TX-2100 PRINTED CIRCUIT BOARD-PARTS LIST NOTE: THE COMPONENTS IDENTIFIED BY MARK ! ARE CRITICAL FOR RISK OF FIRE AND ELECTRIC SHOCK. REPLACE ONLY WITH PART NUMBER SPECIFIED. Main circuit PC board (NAAR-5864-5A) CIRCUIT NO. PART NO. DESCRIPTION Q301 222502 NJM4558D-X...
  • Page 28 TX-2100 CIRCUIT NO. PART NO. DESCRIPTION Capacitors C301,C302 335323315 CK45B50V-331K,Ceramic C303,C304 354781009 CE04W50V-10M,Elect. C305,C306 335321525 CK45B50V-152K,Ceramic C307,C308 354721019 CE04W6.3V-100M,Elect. C309,C310 374726224 ECQ-B50V-622J,Plastic film C311,C312 374721824 ECQ-B50V-182J,Plastic film C313,C314 354781009 CE04W50V-10M,Elect. C315,C316 354781009 CE04W50V-10M,Elect. C341,C342 374722235 ECQ-B50V-223K,Plastic film C345 374722235 ECQ-B50V-223K,Plastic film...
  • Page 29 TX-2100 CIRCUIT NO. PART NO. DESCRIPTION Resistors R301,R302 417341024 R16J-1K,Carbon R303,R304 417345634 R16J-56K,Carbon R305,R306 417342244 R16J-220K,Carbon R307,R308 417341024 R16J-1K,Carbon R309,R310 417343944 R16J-390K,Carbon R311,R312 417343934 R16J-39K,Carbon R313,R314 417341044 R16J-100K,Carbon R315,R316 417343314 R16J-330,Carbon R317,R318 417341054 R16J-1M,Carbon R319,R320 417342224 R16J-2.2K,carbon R321,R322 417341054 R16J-1M,Carbon...
  • Page 30 TX-2100 R537,R538 417342224 R16J-2.2K,carbon R539,R540 443526804 RS1/2WBJ-68,Metal oxide R541,R542 443525604 RS1/2WBJ-56,Metal oxide CIRCUIT NO. PART NO. DESCRIPTION Resistors R545,R546 4800071 or RSS2WK-0.22 or 4000131 RGC22-0.22 OHMK,Metal plate R547,R548 417342204 R16J-22,Carbon R549,R550 417342204 R16J-22,Carbon R551,R552 453630824 RNU1WCJ-8.2,Metal R553,R554 417343324 R16J-3.3K,Carbon R555,R556...
  • Page 31 TX-2100 CIRCUIT NO. PART NO. DESCRIPTION R921,R922 453530104 RNU1/2WCJ-1,Metal resistor JL912b 25051108 NSCT-4P895,Socket JL913b 25051109 NSCT-5P896,Socket Display circuit PC board (NADIS-8371-1A) CIRCUIT NO. PART NO. DESCRIPTION FL tube Q702 212254 or HNA-12MM49 or 212157 12-BT-102GK Sensor U701 241337 PIC-37043TE2,Remote control...
  • Page 32 TX-2100 R703,R704 417341014 R16J-100,Carbon R706,R707 417341044 R16J-100K,Carbon R709 417341034 R16J-10K,Carbon R710,R739 417344714 R16J-470,Carbon R711,R717 417344734 R16J-47K,Carbon CIRCUIT NO. PART NO. DESCRIPTION Resistors R712 417342714 R16J-270,Carbon R714,R715 417341034 R16J-10K,Carbon R718,R719 417343324 R16J-3.3K,Carbon R720,R721 417343324 R16J-3.3K,Carbon R722 417343324 R16J-3.3K,Carbon R724,R779 417341034 R16J-10K,Carbon...
  • Page 33 TX-2100 Primary circuit PC board (NAPS-8372-1A) CIRCUIT NO. PART NO. DESCRIPTION Transistor Q951 2213284 2SC1740S-R Transformer T902 2300670A NPT-1111D,Power CIRCUIT NO. PART NO. DESCRIPTION Diodes D951,D952 22380260 or RL1N4003 or D953,D954 22380035 GP104003E D955 223163 or 1SS133 or 223205 or...
  • Page 34 TX-2100 P961 25045481 or NPJ-2PDBL299 or 25045330 NPJ-2PDBL184,Terminal JL961b 25051088 NSCT-4P875,Socket JL711b 25055627 NPLG-6P589,Plug...
  • Page 35 Tel: 201-785-2600 Fax: 201-785-2650 http://www.onkyousa.com ONKYO EUROPE ELECTRONICS GmbH Liegnitzerstrasse 6, 82194 Groebenzell, GERMANY Tel: +49-8142-4401-0 Fax: +49-8142-4401-555 http://www.onkyo.net ONKYO CHINA LIMITED Units 2102-2107, Metroplaza Tower I, 223 Hing Fong Road, Kwai Chung, N.T., HONG KONG Tel: 852-2429-3118 Fax: 852-2428-9039 HOMEPAGE http://www.onkyo.com/...

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