Onkyo TX-8522 Service Manual
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Onkyo TX-8522 Service Manual

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See also: Instruction Manual
Other models
BMDD,BMDC
BMPP,SMPP,BMPA
RC-666S
SERVICE MANUAL
SERVICE MANUAL
STEREO RECEIVER
TX-8522
MODEL
Black and Silver models
120V AC, 60Hz
230-240V AC, 50Hz
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. 3944
North American model
ON THE
TX-8522
062006
RC-664S

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Summary of Contents for Onkyo TX-8522

  • 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 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-8522 to its f actor y defaults, turn it on and, while holding down the VIDEO button, press the ST ANDBY/ON button.

  • Page 3: Specifications

    TX-8522 SPECIFICATIONS Amplifier Section General Rated Output Power (FTC) (North American) Power Supply North American: AC 120 V, 60 Hz All channels: 100 watts minimum continuous power European and Australian: per channel, 8 ohm loads, 2 channels AC 230 V, 50 Hz driven from 20 Hz to 20 kHz, with a Power Consumption North American: 2.8 A...
  • Page 4 TX-8522 EXPLODED VIEW A003 P704 P901 x 2 pcs. A003 A301 A302 x 24 pcs. A300 P501B A023 A003 U018 x 2 pcs. A220 Q522 Q524 x 2 pcs. A003 A201 U013 U014 D911 A607 Q523 Q521 F911 F912 A018...
  • Page 5 TX-8522 BLOCK DIAGRAM VOLUME Q301 ANALOG POWER AMP SPEAKERS BALANCE PHONO SP-A RELAY SWITCH R641 R393 EQUALIZER Q302 RL591 Q401 POWER AMP SPEAKER-A PHONO PHONO TO POWER AMP R415 R409 SP-B RELAY Q491 P501 REC1 RL592 Q402 MUTING TAPE-1 PLAY1...
  • Page 6 TX-8522 SCHEMATIC DIAGRAM 1 AUDIO SECTION(North American model) Q403:A NAAF-8886 NJM2068L-D R451 C451 C305 Q301:B C455 3.3K C303 1 C453 152J NJM4558D-X R457 47/25 47/25 PHONO 3.3K R453 47/25 101K R461 C313 EQUALIZER C309 C311 100K 10/50 682J R455 R459 3.3K...
  • Page 7 TX-8522 SCHEMATIC DIAGRAM 1 AUDIO SECTION(North American model) R593 (1/2W) SPEAKERS NAAF-8886 C582 Q583 R573 223Z P501 2SA970 2SA949Y See Extended Q507 R521 [57.6V] R517 R519 R523 figure 1-2 (1/2W) (1/2W) R591 Q517 Q531 2SC5171 [56.3V] Q527 2SC1740S_S [1.2V] (1/4W)
  • Page 8 TX-8522 SCHEMATIC DIAGRAM 1 AUDIO SECTION(European and Australian models) Q403:A NAAF-8886 NJM2068L-D R451 Q301:B C451 C305 C455 3.3K C303 1 C453 152J NJM4558D-X R457 47/25 C457 47/25 101K 3.3K PHONO R453 47/25 101K R461 C313 EQUALIZER C309 C311 100K 10/50...
  • Page 9 TX-8522 SCHEMATIC DIAGRAM 1 AUDIO SECTION(European and Australian models) R593 (1/2W) SPEAKERS NAAF-8886 C582 Q583 R573 223Z P501 2SA970 2SA949Y See Extended Q507 R521 [57.6V] R517 R519 R523 figure 1-2 (1/2W) (1/2W) R591 Q517 Q531 2SC5171 [56.3V] 2SC1740S_S (1/4W) [1.2V]...
  • Page 10 TX-8522 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 2SC5200[T5,P5] R581 120K 120K Q513 5.6K 2SC5197[T2.P2] 2SA949Y C523 [0.6V]...
  • Page 11 TX-8522 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 SEG2 SEG1 SEG19 SEG20 SEG0 SEG21 VCC2 SEG22 DIG15/SEG39 SEG23 Q851 DIG14/SEG38 SEG24 DIG13/SEG37...
  • Page 12 TX-8522 SCHEMATIC DIAGRAM 2 DISPLAY SECTION NAVD-8883 C257 U018 1SS352 223Z D252 U012 1SS352 P251 D251 R251 C251 NADIS-8877 VIDEO IN 2.2/50 R258 R259 Q253 R252 5.6K 2SC2878 680K R253 VIDEO OUT C252 R260 100K 470/16 Q252 JL261 2SA1162-GR R254...
  • Page 13 TX-8522 SCHEMATIC DIAGRAM 3 MICROPROCESSOR SECTION NADG-8876 C716 101J R850 D703 1SS355 C725 C724 D702 100/16 100/16 C717 +5VCPU 3.3/50 (VX) RDSSIG 1SS355 RDSDAT D713 +5VTU C718 100/16 Q701 (VR) D701 S-812C56 L701 R722 J701 1SS355 AUA-C3K 470M +5VMPU J702...

  • Page 14: Table Of Contents

    TX-8522 SCHEMATIC DIAGRAM 3 MICROPROCESSOR SECTION Q705 R719 None RN2402 R720 R705 Q603 AMUT C609 104Z RN2402 2.2K R714 C610 104Z Q703 R716 RN1404 104Z C611 C612 104Z R720* SYSIN R674 R653 R652 TU_R C606 TU-GND 104Z TU_L SPRLA TS_GND...
  • Page 15 TX-8522 SCHEMATIC DIAGRAM 4 POWER SUPPLY SECTION POWER TRANSFORMER CAUTION T901 U016 FOR CONTINUED PROTECTION AGAINST FIRE HAZARD, REPLACE NPT-1543D(D) ONLY WITH FUSE OF SAME TYPE NAPS-8880 NPT-1543P(P/A) AND RATING INDICATED. 5A-UL/T-233(D) F903 2.5A-SE-EAK(P/A) U015 ATTENTION F901 AFIN D'ASSURER UNE PROTECTION...
  • Page 16 TX-8522 SCHEMATIC DIAGRAM 5 XM RADIO SECTION(North American models only) NADG-8906 R231 C225 NJM4580M-D C221 821J R221 R225 C227 2.2K 10/50 2.2K Q203 C218 470/6.3 10/50 I2S_OCLK R212 MCLK DZFL R227 I2S_SCLK R213 SR_R_OUT BICK DZFR I2S_SDO R214 C217 SR_L_OUT 2.2K...
  • Page 17 TX-8522 SCHEMATIC DIAGRAM 1 AUDIO SECTION(North American model) Q403:A NAAF-8886 R593 NJM2068L-D (1/2W) R451 SPEAKERS C582 Q301:B C451 C455 Q583 C305 3.3K R573 C303 NJM4558D-X 1 C453 R457 223Z 152J 47/25 2SA970 P501 2SA949Y 47/25 Q507 R521 [57.6V] PHONO 3.3K...
  • Page 18 TX-8522 SCHEMATIC DIAGRAM 1 AUDIO SECTION(Europe and Australian models) Q403:A NAAF-8886 R593 NJM2068L-D (1/2W) R451 SPEAKERS C582 Q301:B C451 C455 Q583 C305 3.3K R573 C303 NJM4558D-X 1 C453 R457 223Z 152J 47/25 2SA970 P501 C457 2SA949Y 47/25 Q507 101K R521 [57.6V]...

  • Page 19: Seg33

    TX-8522 SCHEMATIC DIAGRAM 2 DISPLAY SECTION NAVD-8883 C257 U018 1SS352 223Z NADIS-8877 U012 D252 1SS352 P251 D251 R251 C251 VIDEO IN 2.2/50 R258 R259 Q852 R252 Q253 5.6K 2SC2878 680K R253 16-BT-128GNYK VIDEO OUT C252 R260 100K 470/16 Q252 JL261...

  • Page 20: Schematic Diagram

    TX-8522 TX-8522 SCHEMATIC DIAGRAM 3 MICROPROCESSOR SECTION NADG-8876 Q705 R719 None RN2402 C716 R720 R705 101J Q603 AMUT C609 104Z RN2402 2.2K R850 D703 R714 1SS355 C610 104Z Q703 C725 C724 R716 RN1404 D702 100/16 100/16 C611 104Z C717 +5VCPU 3.3/50...
  • Page 21 TX-8522 WIRING VIEW P251 JL261 AC IN PRIMARY CIRCUIT PC BOARD (NAPS-8880) P501 P303 P910 SCH.4 P512 P912A U015 P911A P901A JL261B P913A T902 JL911A R588 SCH.1 FUSE TERMINAL(US only) PC BOARD (NAPS-8889) P914B P915B U024 MAIN JL918B PC B...

  • Page 22: Nadg

    TX-8522 WIRING VIEW U018 P251 VIDEO TERMINAL PC BOARD (NAVD-8883) JL261 SCH.2 SCH.5 North American models only P302 P301 P303 P707 P706 P201 P202 FM/AM TUNER SIRIUS P704A PACK P212B P212A NADG- 8906 P211B XM & SIRIUS P211A JL261B PC BOARD...
  • Page 23 TX-8522 PRINTED CIRCUIT BOARD VIEW 1 Reversal letter: :Soldering side parts COMPONENT SIDE SOLDERING SIDE MICROPROCESSOR PC BOARD (NADG-8876)
  • Page 24 TX-8522 PRINTED CIRCUIT BOARD VIEW 1 COMPONENT SIDE Reversal letter: :Soldering side parts SOLDERING SIDE U015 PRIMARY CIRCUIT PC BOARD (NAPS-8880)
  • Page 25 TX-8522 PRINTED CIRCUIT BOARD VIEW 2 Reversal letter: :Soldering side parts COMPONENT SIDE U012 DISPLAY CIRCUIT PC BOARD (NADIS-8877)
  • Page 26 TX-8522 PRINTED CIRCUIT BOARD VIEW 2 COMPONENT SIDE Reversal letter: :Soldering side parts SOLDERING SIDE U012 DISPLAY CIRCUIT PC BOARD (NADIS-8877)
  • Page 27 TX-8522 PRINTED CIRCUIT BOARD VIEW 3 MAIN CIRCUIT PC BOARD (NAAF-8886)
  • Page 28 TX-8522 PRINTED CIRCUIT BOARD VIEW 3 MAIN CIRCUIT PC BOARD (NAAF-8886)
  • Page 29 TX-8522 PRINTED CIRCUIT BOARD VIEW 4 FUSE TERMINAL TRANSFORMER TERMINAL U024 U022 PC BOARD (NAPS-8889) PC BOARD (NAPS-8887) North American model only VOLUME PC BOARD U023 U016 TRANSFORMER TERMINAL (NAAF-8888) PC BOARD (NAETC-8881) Reversal letter: :Soldering side parts COMPONENT SIDE...
  • Page 30 TX-8522 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 31 TX-8522 PRINTED CIRCUIT BOARD VIEW 2 Reversal letter: :Soldering side parts COMPONENT SIDE SOLDERING SIDE U012 DISPLAY CIRCUIT PC BOARD (NADIS-8877)
  • Page 32 TX-8522 PRINTED CIRCUIT BOARD VIEW 3 MAIN CIRCUIT PC BOARD (NAAF-8886)
  • Page 33 TX-8522 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 34 TX-8522 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 35 TX-8522 IC BLOCK DIAGRAMS AND DESCRIPTIONS AK4384(106dB 192kHz 24-Bit 2ch DAC ) MCLK MCLK DZFL Clock De-emphasis SMUTE/CSN µP BICK DZFR Control Divider VCOM ACKS/CCLK Interface SDTI DIF0/CDTI DZFL LRCK DZFR View VCOM AOUTL Modulator Interpolator LRCK Audio SMUTE/CSN AOUTL...

  • Page 36: Direct

    TX-8522 MICROPROCESSOR-CONNECTION DIAGRAM OPERATION Q851 D854 Segment PURE FL TUBE Q852 AUDIO DRIVER Digit FL TUBE M66005 Q854 D853 IND. STANDBY IND. U851 REMOTE CONTROL SENSOR IR IN Q251 IR OUR VSWA VIDEO SELECTOR P96/ANEX1/SOUT P10/D8 VSWB P95/ANEX0/CLK4 P11/D9 SWITCH LA7956...

  • Page 37: Amut

    TX-8522 MICROPROCESSOR-TERMINAL DESCRIPTION 1 No. Terminal Signal Name Act. Description P96/ANEX1/SOUT4 VSWA Video switch control output pin P95/ANEX0/CLK4 VSWB Video switch control output pin 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.
  • Page 38 TX-8522 MICROPROCESSOR-TERMINAL DESCRIPTION 2 No. Terminal Signal Name Act. Description P31/A09 Not used. VCC2 Vcc2 Power supply pin. P30/A8(/-/D7) SEC1H Bias selector control pin. (North American model only) Ground pin. P27/AN27/A7(/D7/D6) PROTECT Abnormal voltage and current detection input pin P26/AN26/A6(/D6/D5)
  • Page 39 TX-8522 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 40 TX-8522 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 41 TX-8522 PACKING VIEW A804 P501A A803 A604 A802 A820 A611 A603 P501C A836 A610 A835 A821 A826 A609 A822 A823 A609 A827 A837 A612 A602 A601 A605 A606...
  • Page 42 TX-8522 EXPLODED VIEW-PARTS LIST <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 43: Naetc

    TX-8522 FUSE 5A-UL/T-233 or 252326GR or ! <D/C> FUSE 5A-T/UL-ST2 252258GR ! <D/C> F903 FUSE 2.5A-SE-EAK or 252075GR or ! <P/A> FUSE 2.5A-SE-TL250V 252275GR ! <P/A> FUSE 8A-UL/T-233 or 252329GR or ! <D/C> F911,F912 FUSE 8A-T/UL-ST2 252261GR ! <D/C> FUSE...
  • Page 44 TX-8522 U013 Thermal detector PCB AS NAETC-8878-1A/1B/1C U014 Holder PCB NAETC-8879-1A/1B/1C U015 Primary circuit PCB AS NAPS-8880-1A/1B/1C U016 Transformer terminal PCB AS NAETC-8881-1A/1B/1C U017 Headphone terminal PCB AS NAETC-8882-1A/1B/1C U018 Video terminal PCB AS NAVD-8883-1A/1B/1C Q852 FL TUBE 16-BT-128GNYK 212258A...
  • Page 45 TX-8522 C704 EDL C DX-5R5L224 3000079 C706 VR C CE04W50V-10M(VR) 394681007 C708 C-CERA C CK725B1A-474K1 332134745R1 C709,C712 VR C CE04W16V-100M(VR) 394641017 C710 VR C CE04W10V-470M(VR) 394634717 <D/C> C714 VR C CE04W50V-10M(VR) 394681007 C715 VR C CE04W16V-100M(VR) 394641017 <D/C> C716 C-CERA C...
  • Page 46 TX-8522 <P> R699 C-CARBON R RN72K1J-221JE 435032214R1 R700,R714 C-CARBON R RN72K1J-000JE 435030004R1 R701 C-CARBON R RN72K1J-102JE 435031024R1 R704 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 R711 METAL O R...
  • Page 47 TX-8522 P910 ! <P> SOCKET NSCT-4P912 25051125 AC OUTLET NSCT-2P2013 25052115 ! <A> ! <D/C> F901A,F901B FUSE HOL NSCT-1P2031 25052133 F902A,F902B FUSE HOL NSCT-1P2031 25052133 ! <P/A> F903A,F903B FUSE HOL NSCT-1P2031 25052133 P251 PIN JACK NPJ-4PDYE190 25045339 P503 JACK YKB26-5009...
  • Page 48 TX-8522 KTC3199-GR 2215864 Q531Q532 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 2SA970-BL(TPE2_F) or 2211396 or Q583 KTA1268-GR or 2215885 or KTA1268-BL 2215886 DTC123JS or...
  • Page 49 TX-8522 C513,C514 VX C CE04W25V-47M(VX) 393354707 C515,C516 TF C ECQ-B50V-101K 374721015 C517,C518 TF C ECQ-V50V-473J 374724734 C519,C520 TF C ECQ-V50V-104J 374721044 C521,C522 VX C CE04W50V-10M(VX) 393381007 C523,C524 CERA C CC45SL50V-020C 345020201 VR C CE04W63V-47M(VR) 394674707 <P/A> C527,C528 VR C CE04W100V-47M(VR) 394694707 <D/C>...
  • Page 50 TX-8522 R417,R418 CARBON R R16J-1K 417341024 R419,R420 CARBON R R16J-3.3K 417343324 R436 CARBON R R16J-2.2K 417342224 R451,R452 CARBON R R16J-3.3K 417343324 R453,R454 CARBON R R16J-82K 417348234 R455,R456 CARBON R R16J-22K 417342234 R457,R458 CARBON R R16J-3.3K 417343324 R459,R460 CARBON R R16J-3.3K...
  • Page 51 TX-8522 R933 METAL O R RS1/2WBJ-22 443522204 R934 METAL O R RS1/2WBJ-100 443521014 R951,R952 METAL R RNU1/2WCJ-2.2 453530224 R953 CARBON R R16J-100K 417341044 RL450 RELAY NRL-2P2A-DC12-178 25065664 RELAY NRL-2P5A-DC24-158 or 25065618 or RL591,RL592 RELAY NRL-2P5A-DC24-129 25065563 RL921,RL922 RELAY NRL-1P10A-DC12-140 25065584 <D/C>...
  • Page 52 TX-8522 <D/C> C227,C228 VR C CE04W50V-10M(VR) 394681007T C230,C234 VR C CE04W16V-100M(VR) 394641017T <D/C> <D/C> C231,C232,C235 C-CERA C CK725F1H-104Z1 332151040R1 C236,C240 C-CERA C CK725F1H-104Z1 332151040R1 <D/C> C241,C242 C-CERA C CK725F1H-104Z1 332151040R1 <D/C> <D/C> C243 VR C CE04W6.3V-100M(VR) 394621017T R201,R202,R203 C-CARBON R...
  • Page 53 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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