Onkyo TX-DS898 Service Manual
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Onkyo TX-DS898 Service Manual

Onkyo av receiver service manual
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SERVICE MANUAL

AV RECEIVER
TX-DS898
MODEL
STANDBY/ON
STANDBY
POWER
ON
OFF
ZONE
2
(
GRN
)
REC
(
RED
)
DVD
VIDEO 1
VIDEO 2
VIDEO 3
AUDIO
PURE AUDIO
UPSAMPLING
SELECTOR
Black, Golden and Silver models
BMDD
BMPP,SMPP,BMPA,GMPA
BMWT,GMWT,GMWR
GMGT
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.
MASTER VOLUME
VIDEO 4
VIDEO 5
TAPE
FM
AM
PHONO
C D
DISPL AY
PUSH TO OPEN
TX-DS
898
120V AC, 60Hz
230-240V AC, 50Hz
120/220-230V AC, 50/60Hz
220V AC, 50Hz
ON THE
TX-DS898
092001

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Summary of Contents for Onkyo TX-DS898

  • Page 1: Service Manual

    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: Block Diagram

    TX-DS898 BLOCK DIAGRAM D I G I T A L A U D I O I N P U T 1 1 d B O P T I C A L M U L T I C H A N N E L I N P U T...

  • Page 3: Adjustment And Confirmation Procedures

    TX-DS898 ADJUSTMENT AND CONFIRMATION PROCEDURES Idling current adjustment Before Idling adjustment, turn the trimming resistors R6040 to R6046 to counter clockwise. Connect the DC voltmeter to sockets P6080 to P6086. After turn POWER to ON, adjust the trimming resistors R6040, R6041 and R6042 so that the reading of voltmeter becomes 7.0 mV.
  • Page 4 TX-DS898 ADJUSTMENT AND CONFIRMATION PROCEDURES 3. Confirmation of Current detection circuit Set the unit to "TEST-1-00". Connect the differentiating circuit and apply the 200Hz square signal to MULTI CHANNEL INPUT terminal. of each channel. Adjust the attenuator or Volume so that the output level becomes 35V p-p.

  • Page 5: Test Mode

    . Note: No input signal. The segments of odd number light on . AA:Model "89":TX-DS898 "79":TX-DS797 "AA BB CC DD EE" BB:Video Mode "NS": NTSC "PL": PAL AUTO light on. CC:12V TRIGGER "TR": Available " ":No available DD:RDS "RD": Available "...
  • Page 6 TX-DS898 WIRING VIEW 2 NAETC-7239 NASW-7235 Thermal detector P917 Power switch PC board NAETC-7236 P918A circuit PC board NAETC-7272 Except P917A Speaker terminal P6810D P6008A RI terminal 120V P41,P42 F/C pc board P6012A JL931A P6830 PC board model P2901B NAAF-7232...
  • Page 7 TX-DS898 WIRING VIEW 1 NAETC-7272 RI NAAR-7267 P811A P2805A terminal PC board Connector PC board P2705A P2006A NAAF-7262 P5003E JL931A Preamplifier circuit PC board P2901B P4020A P3010A P2505A P21,P22 P6832B P6830B P2905A P3210A P4610B P6101A P2901A P4610C P5004E P2906 P7705A...

  • Page 8: Schematic Diagram

    TX-DS898 SCHEMATIC DIAGRAM 1 Display section P 7 2 0 1 A T O N A A R - 7 2 6 7 ( P A R T - 1 0 ) N A E T C - 7 2 7 9...
  • Page 9 TX-DS898 SCHEMATIC DIAGRAM 2 I N T R E Q 1 DSP & Main T O N A A R 7 2 6 7 I N T R E Q 2 P 7 7 0 4 B F L A S H W R I T E R...
  • Page 10 TX-DS898 SCHEMATIC DIAGRAM 3 AUDIO I/O SECTION P 1 0 1 0 A T O T U N E R P A C K P 3 2 2 0 A N A A F - 7 2 6 3 V I D E O 5 N A A F - 7 2 6 4 * P a r t N o .
  • Page 11 TX-DS898 SCHEMATIC DIAGRAM 4 Preamp. section C 4 2 0 0 N A A F - 7 2 6 2 1 0 / 5 0 C 4 8 0 2 C 4 8 0 0 C 4 4 0 0...

  • Page 12: Power Amp.section

    TX-DS898 SCHEMATIC DIAGRAM 5 Power amp.section N A A F - 7 2 5 1 N A A F - 7 2 3 2 R 5 3 0 3 R 5 3 0 0 R 5 1 4 3 R 5 1 3 3 R 5 1 8 3 5 6 .
  • Page 13 TX-DS898 SCHEMATIC DIAGRAM 6 Power amplifier section 2 N A A F - 7 2 5 0 R 6 2 3 0 R 6 2 7 0 5 6 . 5 V 1 2 0 R 6 0 8 0 Q 6 0 3 3 1 .
  • Page 14 TX-DS898 SCHEMATIC DIAGRAM 7 Power supply, Fan control & Speaker terminal sections T X - D S 8 9 8 / D T R - 8 . 2 P / W / G - T Y P E P / W / G - T Y P E...
  • Page 15 TX-DS898 SCHEMATIC DIAGRAM 8 Video section N A V D - 7 2 6 9 N A V D - 7 2 6 8 R 2 4 0 3 7 5 2 S C 2 7 1 2 G R...
  • Page 16 TX-DS898 SCHEMATIC DIAGRAM 9 Componet video, mother & RS-232C sections N A V D - 7 2 7 0 N A A R - 7 2 6 7 N A E T C - 7 2 7 2 R S 2 3 2 , I R I N , R I , 1 2 V T R I G E R...

  • Page 17: Printed Circuit Board-Parts List

    TX-DS898 NOTE: <D>:120V model only <R> Chinese model only PRINTED CIRCUIT BOARD-PARTS LIST 1 <P>:European model only <A>: Australian model only <WT>:Worldwide model only <O>: All models except 120V model <GT> 220V model only MAIN CIRCUIT PC BOARD (NADG-7226-1A/1B/1C) CIRCUIT NO.
  • Page 18 TX-DS898 PRINTED CIRCUIT BOARD-PARTS LIST 5 NOTE: <D>:120V model only <O>: All models except 120V model CIRCUIT NO. PART NO. DESCRIPTION CIRCUIT NO. PART NO. DESCRIPTION Resistors Capacitors R9401,R9402 441721504 15ohm+/-5%,2W,Metal oxide C4200-C4207 393381007 10uF,50V,Elect. R9411,R9412 441722704 27ohm+/-5%,2W,Metal oxide C4217...

  • Page 19: Exploded View

    TX-DS898 EXPLODED VIEW P1010 P901 P7201 F901 F602 F903 P7701 10 29 U46 Q6062 F9501 F6901 F9503 20 19 Q6066 F9504 F6902 Q6056 F6502 T901 Q6050 Q6063 E821 Q6053 35 36 TX-DS898 (AV RECEIVER) 2001.07...

  • Page 20: Exploded View Parts List

    TX-DS898 EXPLODED VIEW-PARTS LIST 1 DESCRIPTION DESCRIPTION REF. NO. PART NO. REF. NO. PART NO. 27111236A Front bracket <B> 28325497A Knob, power <B> Front bracket <S> Knob, power <S> 27111237A 28325547A 27111238A Front bracket <G> 28325499A Knob, power <G> Holder, jack...
  • Page 21 TX-DS898 EXPLODED VIEW-PARTS LIST 2 DESCRIPTION REF. NO. PART NO. REF. NO. PART NO. DESCRIPTION Rear panel <D> 27122887A F9503,F9504 252158 or 1.6A-UL/T-237 or Rear panel <P> 27122888A 252252 1.6A-T/UL-ST2,Fuse <D> 27122889A Rear panel <WT> 252073 or 1.6A-SE-EAK or Rear panel <A>...
  • Page 22 TX-DS898 EXPLODED VIEW-PARTS LIST 3 DESCRIPTION DESCRIPTION REF. NO. PART NO. REF. NO. PART NO. 1A906535-1A NASW-7235-1A,Power switch PC board ass'y <D> 1A906542-1B NAETC-7242-1B,AC inlet terminal PC board ass'y <P> NASW-7235-1B,Power switch PC board ass'y <P> NAETC-7242-1C,AC inlet terminal PC board ass'y <R>...
  • Page 23 TX-DS898 EXPLODED VIEW-PARTS LIST 4 REF. NO. PART NO. DESCRIPTION 1A906570-1A NAVD-7270-1A,Component video terminal PC board ass'y <D> 1A906570-1B NAVD-7270-1B,Component video terminal PC board ass'y <O> 1A906572-1A NAETC-7272-1A,RI terminal PC board ass'y <D> 1A906572-1B NAETC-7272-1B,RI terminal PC board ass'y <O>...

  • Page 24: Parts List

    TX-DS898 PACKING PROCEDURES PARTS LIST DESCRIPTION REF. NO. PART NO. NOTE: <B>: Black model only <S>: Silver model only 29092002 Sheet 29095906 <G>: Golden model only 29100153 1020x720,Poly bag <D>: 120V model only Tape, cellophane <P>: European model only 29110149...
  • Page 25 Sales & Product Planning Div. : 2-1, Nisshin-cho, Neyagawa-shi, OSAKA 572-8540, JAPAN Tel: 072-831-8111 Fax: 072-833-5222 ONKYO U.S.A. CORPORATION 18 Park Way, Upper Saddle River, N.J. 07458, U.S.A. Tel: 201-785-2600 Fax: 201-785-2650 E-mail: onkyo@onkyousa.com ONKYO EUROPE ELECTRONICS GmbH Industriestrasse 20, 82110 Germering, GERMANY Tel: 089-849-320 Fax: 089-849-3265 E-mail: info@onkyo.de...
  • Page 26 TX-DS898 NOTE: <D>:120V model only PRINTED CIRCUIT BOARD-PARTS LIST 6 <O>: All models except 120V model CIRCUIT NO. PART NO. DESCRIPTION CIRCUIT NO. PART NO. DESCRIPTION Sockets Plugs P1010A 25052248, NSCT-15P2145, P4010A 25055706 NPLG-10P662 25051859 or NSCT-15P1646 or P4011A.P4020A 25055711...
  • Page 27 TX-DS898 PRINTED CIRCUIT BOARD-PARTS LIST 7 NOTE: <D>:120V model only <O>: All models except 120V model S VIDEO CIRCUIT PC BOARD (NAVD-7269-1A/1B) CIRCUIT NO. PART NO. DESCRIPTION CIRCUIT NO. PART NO. DESCRIPTION Capacitors C201-C204 354780109 1uF,50V,Elect. <O> Q2501,Q2511 222740515R2 74HC4051AF...
  • Page 28 TX-DS898 PRINTED CIRCUIT BOARD-PARTS LIST 8 CIRCUIT NO. PART NO. DESCRIPTION Sockets P7201A 25051877 NSCT-33P1664 P7482A 25051089 NSCT-5P876 P7559A 25051087 NSCT-3P874 Holder Q7501A 27191074A (FL) VOLUME PC BOARD (NASW-7276-1A/1B/1C/1D) CIRCUIT NO. PART NO. DESCRIPTION S7569 25065575 EC16B2425,Rotary encoder P7559B 25051087...
  • Page 29 TX-DS898 NOTE: <D>:120V model only <R> Chinese model only PRINTED CIRCUIT BOARD-PARTS LIST 2 <P>:European model only <A>: Australian model only <WT>:Worldwide model only <O>: All models except 120V model <GT> 220V model only CIRCUIT NO. PART NO. DESCRIPTION RECTIFIER CIRCUIT PC BOARD (NAPS-7234-1A/1B/1C/1D/1E/1H) Sockets CIRCUIT NO.
  • Page 30 TX-DS898 PRINTED CIRCUIT BOARD-PARTS LIST 3 NOTE: <D>:120V model only <O>: All models except 120V model SPEAKER TERMINAL SR/SB PC BOARD (NAETC-7237-1A/1B/1C/1D/1E/1H) THERMAL DETECTOR CIRCUIT PC BOARD (NAETC-7239-1A/1B/1C/1D/1E/ CIRCUIT NO. PART NO. DESCRIPTION CIRCUIT NO. PART NO. DESCRIPTION Thermistors Diodes...
  • Page 31 TX-DS898 PRINTED CIRCUIT BOARD-PARTS LIST 4 CIRCUIT NO. PART NO. DESCRIPTION CIRCUIT NO. PART NO. DESCRIPTION Resistors Transistors R6090-R6092 443521004 10ohm+/-5%,1/2W,Metal oxide Q5083-Q5086 2215854, * KTC3206-Y, R6093-R6096 453530224 2,2ohm+/-5%,1/2W,Metal 2211633, * 2SC2229-O, R6100-R6106 4000201, RF-5EGKR22, 2211634 or * 2SC2229-Y or...

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