Onkyo TX-8222 Service Manual
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Onkyo TX-8222 Service Manual

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See also: Service Manual , Instruction Manual
SERVICE MANUAL
STEREO RECEIVER
MODEL
Black and Silver models
BMDD,BMDC
BMPP,SMPP,BMPA
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.
TX-8222
120V AC, 60Hz
230-240V AC, 50Hz
ON THE
TX-8222
Ref. No. 3945
062006
RC-666S

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Summary of Contents for Onkyo TX-8222

  • 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-8222 SPECIFICATIONS Amplifier Section General Rated Output Power (FTC) (North American) Power Supply North American: AC 120 V, 60 Hz All channels: 50 watts minimum continuous power European: AC 230-240 V, 50 Hz per channel, 8 ohm loads, 2 channels...

  • Page 3: Service Procedures

    In the unlikely event that this happens, unplug the power cord from the wall outlet, wait at least Þve seconds, and then plug it back in again. To reset the TX-8222 to its f actor y defaults, turn it on and, while holding down the VIDEO button, press the ST ANDBY/ON button.

  • Page 4: Exploded View

    TX-8222 EXPLODED VIEW A003 P704 P901 x 2 pcs. A003 A301 A302 x 21 pcs. A300 A023 A003 P501B x 2 pcs. A220 Q522 Q524 x 2 pcs. A003 A201 U013 U014 D911 A607 Q523 Q521 A018 U026 x 5 pcs.

  • Page 5: Block Diagram

    TX-8222 BLOCK DIAGRAM VOLUME Q301 ANALOG POWER AMP SPEAKERS BALANCE PHONO SP-A RELAY SWITCH R641 R393 EQUALIZER Q302 RL591 POWER AMP SPEAKER-A Q401 PHONO PHONO TO POWER AMP R415 R409 SP-B RELAY Q491 P501 REC1 RL592 Q402 MUTING TAPE-1 PLAY1...
  • Page 6 TX-8222 SCHEMATIC DIAGRAM 1 AUDIO SECTION NAAF-8886 R593 (1/2W) SPEAKERS Q301:B C582 Q583 C305 R573 C303 152J NJM4558D-X 223Z 2SA970 P501 2SA949Y Q507 R521 [57.6V] PHONO R517 R519 R523 47/25 J102 (1/2W) C313 (1/2W) Q517 EQUALIZER Q531 R591 C309 [56.3V]...

  • Page 7: Schematic Diagram

    TX-8222 SCHEMATIC DIAGRAM 1-2 Power amplifier section 2SA949Y Q507 R521 [57.6V] R517 R519 R523 (1/2W) (1/2W) R591 Q517 [56.3V] Q531 Q527 2SC5171 (1/4W) [1.2V] 2SC1740S_S Q521 2SC2229-Y R551 R565 R577 2SC5197 120K R581 120K Q513 5.6K 2SA949Y C523 [0.6V] R579...

  • Page 8: Display Section

    TX-8222 SCHEMATIC DIAGRAM 2 DISPLAY SECTION NADIS-8877 U012 Q852 16-BT-128GNYK C868 223Z C870 C869 223Z 223Z R885 C867 R886 223Z C865 33/50 R884 L852 100K 022K +5VDIS SEG2 MPUGND SEG1 SEG19 SEG20 SEG0 SEG21 +5VCPU VCC2 SEG22 DIG15/SEG39 SEG23 Q851...
  • Page 9 TO TUNER PACK R710 D707 D706 D705 +12VA 1SS355 1SS355 C729 10(1/2W) 1SS355 104Z C701 104Z C702 100/16 D601 C613 102K 1SS355 C614 102K C703 C615 102K 100/16 C616 102K C617 102K R701 R689 2.7K C618 102K C709 R691 2.7K C619 102K 100/16 R693 2.7K...
  • Page 10 TX-8222 SCHEMATIC DIAGRAM 4 POWER SUPPLY SECTION POWER TRANSFORMER CAUTION T901 U016 FOR CONTINUED PROTECTION AGAINST FIRE HAZARD, REPLACE NPT-1544D(D) ONLY WITH FUSE OF SAME TYPE NAPS-8880 NPT-1544P(P/A) AND RATING INDICATED. F903 5A-UL/T-233(D) 2.5A-SE-EAK(P/A) U015 ATTENTION F901 AFIN D'ASSURER UNE PROTECTION...

  • Page 11: Wiring View

    TX-8222 WIRING VIEW AC IN PRIMARY CIRCUIT PC BOARD P302 (NAPS-8880) P501 P301 P303 P707 P706 P910 FM/AM TUNER SCH.4 P512 P704A PACK P212B P912A U015 P911A P901A P211B JL261B P913A P705A T902 JL911A R588 SCH.1 FUSE TERMINAL PC BOARD (NAPS-8889)
  • Page 12 TX-8222 PRINTED CIRCUIT BOARD VIEW 1 Reversal letter: :Soldering side parts COMPONENT SIDE COMPONENT SIDE Reversal letter: :Soldering side parts SOLDERING SIDE SOLDERING SIDE U015 MICROPROCESSOR PC BOARD (NADG-8876) PRIMARY CIRCUIT PC BOARD (NAPS-8880)
  • Page 13 TX-8222 PRINTED CIRCUIT BOARD VIEW 2 Reversal letter: :Soldering side parts COMPONENT SIDE SOLDERING SIDE U012 DISPLAY CIRCUIT PC BOARD (NADIS-8877)
  • Page 14 TX-8222 PRINTED CIRCUIT BOARD VIEW 3 MAIN CIRCUIT PC BOARD (NAAF-8886)
  • Page 15 TX-8222 PRINTED CIRCUIT BOARD VIEW 4 TRANSFORMER TERMINAL U022 PC BOARD (NAPS-8887) VOLUME PC BOARD U023 U016 TRANSFORMER TERMINAL (NAAF-8888) PC BOARD (NAETC-8881) Reversal letter: :Soldering side parts COMPONENT SIDE SOLDERING SIDE U017 HEADPHONE TERMINAL PC BOARD (NAETC-8882)
  • Page 16 TX-8222 IC BLOCK DIAGRAMS AND DESCRIPTIONS M66005-0001AFP(FL tube drive IC) Vcc1 Vcc2 SEG36 DISPLAY CODE RAM CGROM (8 bits 16) (35 bits 160) SEG28 SEG27 SERIAL RECEIVE CGRAM CIRCUIT (35 bits 16) SDATA SEG01 write DIG16/SEG40 DIG13/SEG37 INDICATOR CONTROL RESET...
  • Page 17 TX-8222 IC BLOCK DIAGRAMS AND DESCRIPTIONS TA7291S(Volume motor driver) Vref INPUT OUTPUT MODE OUT1 OUT2 STOP CW/CCW CCW/CW BRAKE REGU- OUT1 LATOR CCW: Counter-clockwise CW: Clockwise OUT2 PROTECTOR TC9273CNG(Analog Switch Array) Pin No. Symbol Description (R-ch) Negative power supply pin...

  • Page 18: Operation

    TX-8222 MICROPROCESSOR-CONNECTION DIAGRAM OPERATION Q851 Segment FL TUBE Q852 DRIVER Digit FL TUBE M66005 D853 STANDBY IND. U851 REMOTE CONTROL SENSOR IR IN IR OUR VSWA P96/ANEX1/SOUT P10/D8 VSWB P95/ANEX0/CLK4 P11/D9 P94/DA1/TB4IN P12/D10 RI IN/OUT P93/DA0/TB3IN P13/D11 ~STEREO P92/TB2IN/SOUT3 P14/D12...
  • Page 19 TX-8222 MICROPROCESSOR-TERMINAL DESCRIPTION 1 No. Terminal Signal Name Act. Description P96/ANEX1/SOUT4 VSWA Not used. P95/ANEX0/CLK4 VSWB Not used. P94/DA1/TB4IN Not used. P93/DA0/TB3IN Z2SELCLK Not used. P92/TB2IN/SOUT3 Z2SELDAT Not used. P91/TB1IN/SIN3 Z2SELLAT Not used. P90/TB0IN/CLK3 Not used. BYTE BYTE External bus select pin. Connect to Ground.
  • Page 20 TX-8222 MICROPROCESSOR-TERMINAL DESCRIPTION 2 No. Terminal Signal Name Act. Description P31/A09 Not used. VCC2 Vcc2 Power supply pin. P30/A8(/-/D7) SEC1H Not used. Ground pin. P27/AN27/A7(/D7/D6) PROTECT Abnormal voltage and current detection input pin P26/AN26/A6(/D6/D5) VOLH A/D Output signal level detection pin...
  • Page 21 TX-8222 ADJUSTMENT AND CONFIRMATION PROCEDURES 1 Idling current adjustment Before Idling adjustment, turn the trimming resistors R587 and R588 to counter clockwise. Connect the DC voltmeter to terminals P511 and P512. After turn POWER to ON, adjust the trimming resistors R587 and R588 so that the reading of voltmeter becomes 2.5 mV.

  • Page 22: Tuning Down

    TX-8222 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 50Hz square signal to CD terminal of each channel. Adjust the attenuator or Volume so that the output level becomes 30V p-p.

  • Page 23: Packing View

    TX-8222 PACKING VIEW A804 P501A A803 A604 A802 A820 A611 A603 P501C A836 A610 A835 A821 A609 A822 A823 A609 A602 A601 A605 A606...

  • Page 24: Exploded View Parts List

    TX-8222 EXPLODED VIEW-PARTS LIST NOTE: <B>: Black model NOTE: THE COMPONENTS IDENTIFIED BY MARK ! <S>: Silver model ARE CRITICAL FOR RISK OF FIRE AND <D>: USA model ELECTRIC SHOCK. REPLACE ONLY WITH <P>: European model PART NUMBER SPECIFIED. <A>: Australian model...
  • Page 25 TX-8222 A218 TAPE TAPE(CLOTH-16U) 29110083 A219 TAPE TAPE(CLOTH-8U) 29110082 A220 SPACER 27270472 REAR PANEL 27123570 <D/C> A300 REAR PANEL 27123572A <A> REAR PANEL 27123571A <P> A301 SCREW 3TTB+8B(3BC) 838430088GR <D/C> A302 WASHER W3*10F(3BC) 87643010GR F PANEL 27212916 <D/C/A> A350 F PANEL 27212917 <B>...
  • Page 26 TX-8222 AC CORD AS-CEE-2 253374YUN ! <P> Q521,Q522 2SC5197-O 2203043 Q521A ISO SHEET AC238 223024 Q523,Q524 2SA1940-O 2203033 P TRANS NPT-1544D 2301870 ! <D/C> T901 P TRANS NPT-1544P 2301871 ! <P/A> Microprocessor PCB AS NADG-8876-1M 1B144576-1M <D/C> Microprocessor PCB AS...

  • Page 27: Printed Circuit Board-Parts List

    TX-8222 TUNER UNIT ENG07506QFEX 240159 <A> TUNER UNIT FAE485-E11EU 240154 <P> PRINTED CIRCUIT BOARD-PARTS LIST CIRCUIT NO. PART NAME DESCRIPTION PART NO. REMARKS Microprocessor PCB AS NADG-8876-1M/1N/1P Display circuit PCB AS NADIS-8877-1M/1N/1P U012 Thermal detector PCB AS NAETC-8878-1M/1N/1P U013 Holder PCB...
  • Page 28 TX-8222 L701,L857 CHOKE COIL NCH-1479 231237K470R2 L702,L852 CHOKE COIL NCH-1471 231237K022R2 L853,L854,L855 CHOKE COIL NCH-1477 231237K220R2 P TRANS NPT-1520JQ 2301812 ! <D/C> T902 P TRANS NPT-1519GQ 2301811 ! <P/A> U851 REMO SENS NJL34H380A 241365 CERA LOCK CSTLS6M00G-56-A0 or 3010427 or...
  • Page 29 TX-8222 C902,C991 C-CERA C CK725F1H-104Z1 332151040R1 C903 VR C CE04W35V-2200M(VR) 394662227 C904 VR C CE04W35V-100M(VR) 394661017 C906 VR C CE04W50V-4.7M(VR) 394680477 C912 IS C RE275V-103M 3500196 R601,R602 C-CARBON R RN72K1J-221JE 435032214R1 R608 C-CARBON R RN72K1J-221JE 435032214R1 <P> R609,R610,R614 C-CARBON R...
  • Page 30 TX-8222 R699 C-CARBON R RN72K1J-221JE 435032214R1 <P> R700,R714 C-CARBON R RN72K1J-000JE 435030004R1 R701 C-CARBON R RN72K1J-102JE 435031024R1 R704,R715,R717 C-CARBON R RN72K1J-103JE 435031034R1 R705 C-CARBON R RN72K1J-222JE 435032224R1 R709 C-CARBON R RN72K1J-101JE 435031014R1 R710 METAL O R RS1/2WBJ-10 443521004 C-CARBON R...
  • Page 31 TX-8222 R884 C-CARBON R RN72K1J-104JE 435031044R1 R885,R886 C-CARBON R RN72K1J-221JE 435032214R1 R887 C-CARBON R RN72K1J-101JE 435031014R1 R888 C-CARBON R RN72K1J-102JE 435031024R1 R889 C-CARBON R RN72K1J-123JE 435031234R1 R909,R914 C-CARBON R RN72K1J-104JE 435031044R1 R913 C-CARBON R RN72K1J-102JE 435031024R1 R915 METAL O R...

  • Page 32: Gnd Terminal

    TX-8222 JL711A,JL716B WIRE HOL NSCT-3P894 25051107 JL911A WIRE HOL NSCT-6P877 25051090 JL911B WIRE TRAP NPLG-6P589 25055627 P901A PLUG NPLG-2P631 25055675 P504 CRIMP AS CRIMP AS 2061712200UL P911 CRIMP AS CRIMP AS 2069943351UL P912 CRIMP AS CRIMP AS 2069943459UL P991 RETAINER...
  • Page 33 TX-8222 Q527,Q528 2SC2229-O(TPE6_F) 2211633 2SC2458-GR or 2212115 or Q529,Q530 2SC2458-BL or 2212116 or KTC3199-GR 2215864 Q531,Q532 2SC1740S-S 2213285 Q533,Q534 2SC1740S-S 2213285 2SC2240-GR or 2211405 or 2SC2240-BL(TPE2_F) or 2211406 or Q581,Q582 KTC3200-GR or 2215895 or KTC3200-BL 2215896 2SA970-GR or 2211395 or...
  • Page 34 TX-8222 C313,C314 VX C CE04W50V-10M(VX) 393381007 C315,C316 VR C CE04W16V-220M(VR) 394642217 C317,C318 TF C ECQ-B50V-101K 374721015 <P/A> C321.C322,C325 TF C ECQ-B50V-101K 374721015 <P/A> C326,C327,C328 TF C ECQ-B50V-101K 374721015 <P/A> C329,C330 TF C ECQ-B50V-101K 374721015 <P/A> C341,C342 CERA C CK45F50V-223Z 335622230...
  • Page 35 TX-8222 C648 CERA C CK45F50V-223Z 335622230 C911,C912 TF C ECQ-V50V-334J 374723344 C915,C916 ELECT C CE69W56V-8200MB 3504416 C918 VR C CE04W35V-1000M(VR) 394661027S C919 VR C CE04W35V-330M(VR) 394663317 C920 CERA C CK45F50V-223Z 335622230 C921,C930,C931 CERA C CK45F50V-223Z 335622230 C922 VR C CE04W50V-33M(VR)
  • Page 36 TX-8222 R354,R441,R442 NF CARBON R R25J-10 415471004 R391,R392 CARBON R R16J-1K 417341024 R393 VARI R N11RLC250KWT20Z 5104288 R401,R402 CARBON R R16J-1K 417341024 R403,R404,R435 CARBON R R16J-220K 417342244 R405,R406 CARBON R R16J-22K 417342234 R407,R408 CARBON R R16J-3.3K 417343324 R409,R415 VARI R...
  • Page 37 TX-8222 R551,R552,R571 CARBON R R16J-33K 417343334 R553,R554,R574 CARBON R R16J-47K 417344734 R555,R556 METAL R RNU1/2WCJ-8.2 453530824 R561,R562 CARBON R R16J-270 417342714 R563,R564 CARBON R R16J-100K 417341044 R565,R566 CARBON R R16J-120K 417341244 R567,R568 CARBON R R16J-22 417342204 R569,R570 CARBON R R16J-22...
  • Page 38 TX-8222 P303 PIN JACK NPJ-4PDBL162 25045303 P501 NTM-8PDMC396 25060467 P704B,P705B TRM(SCREW) GND TERMINAL 25065425 JL711B,JL716B SOCKET NSCT-3P95 25050267 JL613A WIRE HOL NSCT-10P881 25051094 JL913A,JL913B WIRE HOL NSCT-5P896 25051109 P511,P512 PLUG NPLG-2P29 25055038 P701B PLUG NPLG-19P0974 25056024 P702B PLUG NPLG-13P0968 25056018...
  • Page 39 TX-8222 A821 INS MANUAL U2FrEs 29344235 <P/C> A822 INS MANUAL U2ItDe 29344236 <P> A823 INS MANUAL U2NlSv 29344237 <P> A835 INST SHEET WEEE 29355537 <P> A836 REMO CON RC-666S 24140666 <D/C> P501A (WRENCH) 25060468 P501C INST SHEET ERRATA(SP) 29355562...
  • Page 40 18 Park Way, Upper Saddle River, N.J. 07458, U.S.A. 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 EUROPE UK Office Suite 1, Gregories Court, Gregories Road, Beaconsfield, Buckinghamshire, HP9 1HQ UNITED KINGDOM Tel: +44-(0)1494-681515 Fax: +44(0)-1494-680452...

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