Onkyo TX-NR900E Service Manual
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Onkyo TX-NR900E Service Manual

Onkyo tx-nr900/e av receiver service manual
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See also: Instruction Manual
SERVICE MANUAL
SERVICE MANUAL
AV RECEIVER
TX-NR900/E
MODEL
STANDBY/ON
STANDBY
POWER
ON
OFF
ZONE
2
(
GRN
)
REC (
RED
)
DVD
VIDEO
1
VIDEO
2
VIDEO
3
AUDIO
SELECTOR
PURE AUDIO
UPSAMPLING
VCR
1
VCR
2
Black, Silver and Golden models
BUDD,BUDC
BUPP,BUPA,SUPP,GUPA
BUWT,GUWT,GUWR
GUGT
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.
VIDEO
4
VIDEO
5
TAPE
TUNER
PHONO
C D
NET AUDIO
DISPL AY
120V AC, 60Hz
230~240V AC, 50Hz
120/220~230V AC, 50/60Hz
220V AC, 50Hz
ON THE
TX-NR900/E
Ref. No. 3755
112002
MASTER VOLUME
PUSH TO OPEN
TX -NR900E

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Summary of Contents for Onkyo TX-NR900E

  • 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-NR900/E SPECIFICATIONS AMPLIFIER SECTION TUNER SECTION Continuous average power output (FTC) All channels: 110 W per channel min. RMS at 8 Tuning range , 2 channels driven from 20 Hz to USA & Canadian models: 87.50 –108.00 MHz (100-kHz steps) 20 kHz with no more than 0.08% Other models: 87.50 –108.00 MHz (50-kHz steps)
  • Page 3 TX-NR900/E SERVICE PROCEDURES 1. Replacing the fuses 4. Memory Preservation This unit does not require memory preservation batteries. A This symbol located near the fuses indicates built-in memory power back-up system preserves the contents that the fuse used is fast operating type. For continued of the memory during power failures and even when the unit is protection against fire hazard, replace with same type fuse.
  • Page 4 TX-NR900/E EXPLODED VIEW P1010 P901 Chinese model only P7201 P602 F901 P603C P7701 P603 F902 F903 Q6062 Q6052 10 31 U46 P7701 Q6056 P/T/R/GT models 20 19 Q6066 F6901 F6902 T901 Q9422B Q9422A F9501 F9502 E821 F9504 F9503 F9501A P/T/GT models...

  • Page 5: Block Diagram

    TX-NR900/E BLOCK DIAGRAM DIGITAL AUDIO INPUT OPTICAL 24.576MHZ VIDEO 5 DIGITAL AUDIO OUTPUT (FRONT) OPTICAL 1 SRAM 1M SRAM1M COAXIAL 1 2ND PLL CY7C 1019 CY7C1019 BV33 BV33 COAXIAL 2 246F OPTICAL 2 24.576MHZ COAXIAL 3 POST DECODING 50KLPF PROCESSING (AC-3,DTS) OPTICAL 1 192/24...
  • Page 6 TX-NR900/E BLOCK DIAGRAM 11dB MUTE MULTI CHANNEL INPUT 11dB HEADPHONE MUTE HPEN MASTER VOLU ME TONE PREOUT NJU7306G LEFT Power Amplifier BOOST +29dB MUTE SL->L C->L SW ->L MC R TC94A07F BYPASS FRONT SPEAKERS RIGHT RIGHT +29dB MUTE SR->R C->R SW ->R LEFT BYPASS...

  • Page 7: Schematic Diagram

    TX-NR900/E SCHEMATIC DIAGRAM 1-1 Sub-microprocessor and display sections TO NAPS-7708 (SCH. 8) P7201A TO NAAR-7728 (SCH. 9) JL7201A NAETC-7742 U2501 +5 V DGND TORX178A R2576 C7501 474Z NAETC-7741 R7501 P2508 R7502 220 NAETC-7740 C7502 474Z P7481 VIDEO5 HEADPHONES C7509 474Z D7501 UDZ1 C7510 D7502...
  • Page 8 TX-NR900/E SCHEMATIC DIAGRAM 1-2 Sub-microprocessor and display sections JL7201A Q7501 HNA-16MM40T Q7504 Q7503 2SC2712 R7502 220 KTC3875 C7502 474Z C7509 474Z D7501 UDZ11B C7510 33/50 +12V Q7502 M66005FP C7507 104Z C7504 101J C7508 101J C7505 C7503 C7506 104Z 100/6.3 474J NADIS-7738 LEDGRE Q7536...
  • Page 9 TX-NR900/E SCHEMATIC DIAGRAM 2-1 DSP and Main Microprocessor Section...
  • Page 10 TX-NR900/E SCHEMATIC DIAGRAM 2-2 DSP and Main Microprocessor Section DSPDA (SCH. 6) C181 RDSDET DSPCL TO MAIN AMP P77 01A European model only Q180 LC7272 3M 220 K L180 +5VDSP KRC104S RN1404 Q700 1 C700 4 1/50 CSTCV 16.0 MXJ0C UDZ6.2B D700 5 D7004...
  • Page 11 TX-NR900/E SCHEMATIC DIAGRAM 3-1 Audio Input/Output NAAF-7720 NJM4565M-D C3222 Q3205 47/50 R3222 R3234 R3252 220K A GND 100K R3223 R3235 220K R3250 100K C3223 47/50 Q3205 R3251 C3252 R3253 100K 10/16 R3254 100K C3250 10/50 AGND R3406 R3404 10/50 C3251 Q3400 C3400 C3402...
  • Page 12 TX-NR900/E PRINTED CIRCUIT BOARD VIEW FROM SOLDERING SIDE 1 S7569 C7569 C7559 S7569 COMPONENT SIDE SOLDERING SIDE VOLUME PC BOARD(NAETC-7739) C7481 C7482 J771 J772 P7482B C7483 25137740 NCETC-7740 COMPONENT SIDE SOLDERING SIDE HEADPHONE TERMINAL PC BOARD(NAETC-7740) P2506B P3220B P2509 P2510 NCETC-7741 25137741 P2510...
  • Page 13 TX-NR900/E SCHEMATIC DIAGRAM 4-1 Pre-amplifier section P3600 R3600 C3610 10/50 LEFT R4120 C4120 C3600 R3610 R3620 22(1/2W) C4200 220/16 R4320 331K 220K Left 10/50 FRONT C4320 R3611 R3621 C3601 (1/2W) C4121 R4121 220/16 C4220 220K R4200 C4210 331K 220/16 22(1/2W) 1/50 RIGHT 100K...
  • Page 14 TX-NR900/E SCHEMATIC DIAGRAM 4-2 Pre-amplifier section NAAF-7718 R4920 (1/2W) C4920 C4802 C4230 R4410 C4800 220/16 NJM4565M-D 2.2/50 47/50 4.7K 10/16 C4806 C4220 C4210 R4420 R4814 Q4210 Q4410 100/6.3 1/50 100D 4.7K R4800 R4802 Q4800 C4600 R4210 C4410 R4810 R4816 47/50 220K NJM4565M-D 101K...
  • Page 15 TX-NR900/E SCHEMATIC DIAGRAM 6-2 Power amplifier Section NAAF-7706 R6230 R6270 58.3V 58.2V R6080 Q6000 1.2V (1/4W) (1/4W) (1/2W) R6160 Q6050 R6010 Q6030 R6510 Q6090 57.7V 4.7K 0.22 Q6070 R6140 0.5V (1/2W) R6250 L6000 0.6V R6020 R6060 P6080 0.1V 3.3K (1/4W) R6100 C6020 R6030...
  • Page 16 TX-NR900/E SCHEMATIC DIAGRAM 6-1 Power amplifier Section NAAF-7706 58.3V Q6033 Q6003 1.2V R6083 R6163 Q6053 R6013 C6512 0.6V (1/4W) 5.6K 4.7/100 Q6073 0.5V R6143 P6083 R6023 R6063 3.9K 0.1V R6512 3.3K R6103 0.22 R6033 0.22 C6003 (1/2W) X2(5W) 102J R6073 R6113 R6153 Q6023...
  • Page 17 TX-NR900/E SCHEMATIC DIAGRAM 5-2 Driver Circuit Section NAAF-7707 R5303 R5143 R5133 R5183 R5233 100(1/4W) 56.6V R5113 R5123 (1/4W) (1/4W) (1/4W) (1/4W) 2.2K 2.2K 56.6V R5073 100K 56.3V Q5053 Q5043 56.1V 56.0V 1.2V Q5033 C5123 C5113 C5073 R5213 47/100 050D 10/100 Q5003 Q5013 C5003...
  • Page 18 TX-NR900/E SCHEMATIC DIAGRAM 5-1 Driver Circuit Section NAAF-7690 R5300 57.5V R5140 R5130 R5180 R5230 68(1/4W) R5110 R5120 (1/4W) (1/4W) (1/4W) 56.6V (1/4W) 2.2K 2.2K R5070 51.5V 100K 56.3V Q5050 Q5040 55.8V 1.2V Q5030 C5120 C5110 C5070 R5210 100/100 55.7V 050D 10/100 -38.9V Q5000...
  • Page 19 TX-NR900/E SCHEMATIC DIAGRAM 5-1 Driver Circuit Section NAAF-7690 R5300 57.5V R5140 R5130 R5180 R5230 68(1/4W) R5110 R5120 (1/4W) (1/4W) (1/4W) 56.6V (1/4W) 2.2K 2.2K R5070 51.5V 100K 56.3V Q5050 Q5040 55.8V 1.2V Q5030 C5120 C5110 C5070 R5210 100/100 55.7V 050D 10/100 -38.9V Q5000...
  • Page 20 TX-NR900/E SCHEMATIC DIAGRAM 6-1 Power amplifier Section NAAF-7706 58.3V Q6033 Q6003 1.2V R6083 R6163 Q6053 R6013 C6512 0.6V (1/4W) 5.6K 4.7/100 Q6073 0.5V R6143 P6083 R6023 R6063 3.9K 0.1V R6512 3.3K R6103 0.22 R6033 0.22 C6003 (1/2W) X2(5W) 102J R6073 R6113 R6153 Q6023...
  • Page 21 TX-NR900/E SCHEMATIC DIAGRAM 5-2 Driver Circuit Section NAAF-7707 R5303 R5143 R5133 R5183 R5233 100(1/4W) 56.6V R5113 R5123 (1/4W) (1/4W) (1/4W) (1/4W) 2.2K 2.2K 56.6V R5073 100K 56.3V Q5053 Q5043 56.1V 56.0V 1.2V Q5033 C5123 C5113 C5073 R5213 47/100 050D 10/100 Q5003 Q5013 C5003...
  • Page 22 TX-NR900/E SCHEMATIC DIAGRAM 6-2 Power amplifier Section NAAF-7706 R6230 R6270 58.3V 58.2V R6080 Q6000 1.2V (1/4W) (1/4W) (1/2W) R6160 Q6050 R6010 Q6030 R6510 Q6090 57.7V 4.7K 0.22 Q6070 R6140 0.5V (1/2W) R6250 L6000 0.6V R6020 R6060 P6080 0.1V 3.3K (1/4W) R6100 C6020 R6030...
  • Page 23 TX-NR900/E SCHEMATIC DIAGRAM 4-2 Pre-amplifier section NAAF-7718 R4920 (1/2W) C4920 C4802 C4230 R4410 C4800 220/16 NJM4565M-D 2.2/50 47/50 4.7K 10/16 C4806 C4220 C4210 R4420 R4814 Q4210 Q4410 100/6.3 1/50 100D 4.7K R4800 R4802 Q4800 C4600 R4210 C4410 R4810 R4816 47/50 220K NJM4565M-D 101K...
  • Page 24 TX-NR900/E SCHEMATIC DIAGRAM 4-1 Pre-amplifier section NAAF-7718 P3600 R3600 C3610 10/50 LEFT R4120 R4920 C4120 C3600 R3610 R3620 22(1/2W) C4200 (1/2W) 220/16 R4320 C4920 331K 220K Left 10/50 C4802 FRONT C4230 R4410 C4800 220/16 NJM4565M-D C4320 R3611 R3621 2.2/50 C3601 (1/2W) 47/50 4.7K...
  • Page 25 TX-NR900/E SCHEMATIC DIAGRAM 7 Speaker terminal and fan drive sections P/W-TYPE P/W-TYPE NAETC-7694 NAETC-7695 P6800 L6800 S1.3C L6803 S1.3C P6802 SPEAKERS SPEAKERS R6800 22 R6803 22 R6810 22 R6813 22 OTHERS OTHERS C6600 D6603 103Z D6600 C6603 P/W-TYPE 103Z P/W-TYPE L6801 S1.3C RL6603 L6804 S1.3C...

  • Page 26: Power Supply Section

    TX-NR900/E SCHEMATIC DIAGRM 8 Power Supply Section T H I S S Y M B O L L O C A T E D N E A R T H E F U S E I N D I C A T E S T H A T T H E F U S E U S E D I S S L O W O P E R A T I N G T Y P E C922 NAPS-7691...

  • Page 27: P7201

    TX-NR900/E SCHEMATIC DIAGRAM 9-1 Mother Board Section P7201B NAETC-7733 NAAR-7728 Except UDD, UDC and UPA P201 RS-232 C4+ 20 L201 GND19 BLM21A102F C4- 18 C204 VSS 17 1/50 C202 STBY 16 1/50 VCHA15 SUBREQ R201 330 R205 330 MAINCL 232TXD MAINSO SUBSO R203 330...
  • Page 28 TX-NR900/E SCHEMATIC DIAGRAM 9-2 Mother Board Section NADIS-7738(SCH. 1) NAPS-7708 (SCH. 8) P9502B NAAR-7728 R2912 4. 7 1/2 W D2931 R2931 RL1N4003 1 1/2W D2902 RL1N4003 R2933 22 1SS352 R2902 1/2W Q2907 Q2903 D2932 SC2712 D2903 2SC2712 Q2902 Q2908 R2903 1SS352 RN2402 RN2402...
  • Page 29 TX-NR900/E SCHEMATIC DIAGRAM 10-1 Net-tune circuit section NADG-7662 3.3V 2.5V Voltage Regurator +2.5V MultiMedia CPU +5.6V +2.5V +3.3V +3.3V +5.6V L603 Q601 BA33C25FP +3.3V NFM60R10T471 BLM21P221SG VO1 4 L601 Main Me VO2 5 Q607 Q603 +3.3V +3.3V C613 0.1 COL7 C692 COL6 COL5...
  • Page 30 TX-NR900/E SCHEMATIC DIAGRAM 10-2 Net-tune circuit section +3.3V (NETWORK SECTION) 10BaseT EtherNet +3.3V Main Memory Program Flash ROM R601 100_1% P601 R553 100_1% Q603 R555 27K_5% +3.3V DQ15 53 SA19 RXD+ DQ14 51 R602 100_1% SA18 DQ13 50 R554 100_1% SA17 DQ12 48 R556 27K_5%...

  • Page 31: Video Section

    TX-NR900/E SCHEMATIC DIAGRAM 11-1 Video Section Q2001 LC74761M-9845 Vdd1 C2010 100/6.3 X2001 R2009 C2011 474J XTL14.32MHZ XTA LIN1 Q2301 47K R2010 C2001 100D C2012 0.47/50 2.7K SYN CDET D2001 XTA LOUT1 C2002 180J VCOOUT Q2302 C2013 270J P2001 R2301 C2014 220J HSYNCOUT Except...
  • Page 32 TX-NR900/E SCHEMATIC DIAGRAM 11-2 Video Section R2403 75 Q2401-Q2414 Q2404 RN1444 P2501 MONITOR C2433 104Z DVDC R2401 C2432 DVDY 100/6.3 Q2401 DVDY P2502 DVDC C2431 104Z C2612 C2611 C2602 104Z 104Z 104Z 104Z C2601 R2407 75 R2405 75 VIDEO1 Q2409 C2422 100/6.3 Q2410...
  • Page 33 TX-NR900/E SCHEMATIC DIAGRAM 12 Component video section NAVD-7731 D2701 COMPONENT OUT RL2701 COMPONENT1 IN CR(PR) CB(PB) RL2702 C2701 104Z C2703 P2701 104Z P2703 COMPONENT IN D2702 C2704 COMPONENT2 IN 104Z CR(PR) Q2701 R2701 CB(PB) 2SC2712 C2702 P2702 104Z P2705B TO NAAR-7728 (SCH.
  • Page 34 TX-NR900/E WIRING VIEW 2-2 NCAF-7718 P5004E P5003E PREAMPLIFIER PC BOARD (NAAF-7718) P15 (SCH. P17) BIAS SELECTOR JL4612 RELAY PC BOARD P4012A (NAPS-7692) P28 (SCH. P29) P4020B P4010B P4011B JL6953B P6951 P901B AC INLET P9505A TERMINAL PC BOARD (NAETC-7700) P32 (SCH. P30) T901 NPT-1453D or P POWER...
  • Page 35 TX-NR900/E WIRING VIEW 2-1 POWER SUPPLY PC BOARD (NAPS-7708) P28 (SCH. P29) P9502A P9508 JL9503B FAN DRIVE CIRCUIT PC BOARD (NAETC-7696) Thermal detector Thermal detector P27 (SCH. P29) circuit PC board P6931A circuit PC board (NAETC-7697) (NAETC-7714) P28 (SCH. P29) P32 (SCH.
  • Page 36 TX-NR900/E WIRING VIEW 1-2 P3601 P3600 P4601 P4600 U105 U104 U103 U102 U101 U100 P101 ECTOR PREAMPLIFIER PC BOARD (NAAF-7718) P800 P15 (SCH. P17) FRONT OPTICAL INPUT PC DSP CIRCUIT BOARD PC BOARD (NAETC-7742) (NADG-7687) P750 P7 (SCH. P9) (SCH. P6) JL9503A ont end (SCH.
  • Page 37 TX-NR900/E WIRING VIEW 1-1 RI TERMINAL PC BOARD (NAETC-7733) P204 P203 P202 P205 P606B P201 P607B MAIN CONNECTOR P33(SCH. P35) PC BOARD P602B (NAAR-7728) P605 P33 (SCH. P35) NET-TUNE PC BOARD P603A (NADG-7662) P37(SCH. P39) P608B P610B P604B P3011B P3010B VIDEO TERMINAL PC BOARD P3220A...
  • Page 38 TX-NR900/E PRINTED CIRCUIT BOARD VIEW FROM SOLDERING SIDE 1 S7569 C7569 C7559 S7569 COMPONENT SIDE SOLDERING SIDE VOLUME PC BOARD(NAETC-7739) C7481 C7482 J771 J772 P7482B C7483 25137740 NCETC-7740 COMPONENT SIDE SOLDERING SIDE HEADPHONE TERMINAL PC BOARD(NAETC-7740) P2506B P3220B P2509 P2510 NCETC-7741 25137741 P2510...
  • Page 39 TX-NR900/E PRINTED CIRCUIT BOARD VIEW FROM SOLDERING SIDE 2-2 P7203 JL7201A J7242 D7533 J7243 POWER S7541 STANDBY NCDIS-7738 J7248 25137738A COMPONENT SIDE J7213 J7224 D7523 D7522 7525 D7524 J7229 D7521 J7219 J7230 VIDEO1 AUDIOSEL VIDEO3 VIDEO2 VIDEO4 J7228 J7218 UPSPL PUREAUDIO S7543 S7547...
  • Page 40 TX-NR900/E PRINTED CIRCUIT BOARD VIEW FROM SOLDERING SIDE 2-1 P7203 J7273 J7266 J7282 Q7501 VDCS C7207 SUBPOFF MAINREQ SYNC FLOSDDA FLOSDCL Q7501 OSDCS DIMPWM REMIN J7272 VDDA SUBRES VDCL VSYNC 232RX U7201 232TX NETRX NETTX J7248 SUBSO MAINSO MAINSCK X7201 +12V J7302 +5.6S...
  • Page 41 TX-NR900/E PRINTED CIRCUIT BOARD VIEW 3-3 R728 R729 R730 R125 R737 R736 R735 R731 C713 C101 C116 C116 C102 Q702 Q702 R7171 R7170 D107 C855 R115 R103 C714 D103 R109 R114 R105 D109 R111 R107 R128 D105 C107 C105 D102 C108 Q102 Q101...
  • Page 42 TX-NR900/E PRINTED CIRCUIT BOARD VIEW 3-2 DSP CIRCUIT PC BOARD (NADG-7687) CHIP PARTS SIDE U100 U101 U102 U103 U104 U105 P101 L160 U102 U105 L162 C141 P101 C142 U103 C146 C133 U100 U101 C144 U104 C143 C145 C148 L130 L136 C170 C167 C147...
  • Page 43 TX-NR900/E PRINTED CIRCUIT BOARD VIEW 3-1 U100 U101 U102 U103 U104 U105 P101 L160 U102 U105 DSP CIRCUIT L162 C141 P101 C142 U103 C146 C133 U100 U101 C144 U104 C143 C145 C148 L130 PC BOARD L136 C170 C167 C147 R826 R842 R858 R874...
  • Page 44 TX-NR900/E PRINTED CIRCUIT BOARD VIEW FROM SOLDERING SIDE 4-1 R3121 C1002 C1003 C1007 Q1001 R3120 C3010 C3011 C3009 C3008 J324 C3122 J316 J323 J322 J321 J319 C3123 J320 J312 J318 J310 J317 J305 J304 J308 C3121 C3121 J309 J307 J306 P3001 P3000 P3050...
  • Page 45 TX-NR900/E PRINTED CIRCUIT BOARD VIEW FROM SOLDERING SIDE 4-2 P3201 P3202 P3203 P3200 P3200 P3201 P3202 P3203 J355 P3220A J358 J357 J354 J353 J351 J352 C3403 C3402 J359 J376 J377 J372 J366 J367 J360 J373 J368 J361 J378 J369 J362 C3320 J374 J371...
  • Page 46 TX-NR900/E PRINTED CIRCUIT BOARD VIEW FROM SOLDERING SIDE 5-1 NCAF-7718 25137718A J4196 J4190 J4175 P4611E J4193 J4188 J4177 J4172 C4621 C4601 PREAMPLIFIER C4231 P5004E P5003E C4211 PC BOARD C4411 P4611B (NAAF-7718) C4320 P6101A J4174 C4321 J4221B J4167 P6102A J4169 C4230 P4610B C4410 C4210...
  • Page 47 TX-NR900/E PRINTED CIRCUIT BOARD VIEW FROM SOLDERING SIDE 5-2 C4611 P4611D P4611C PREAMPLIFIER C4610 PC BOARD C4231 C4617 C4211 (NAAF-7718) P4611A J4221A C4612 C4320 C4321 J4221B C4614 C4230 P4610C C4210 J4003 C4613 P4610D J4115 C4001 J4111 J4043 C4237 C4616 C4217 P4610A C4615 C4322...
  • Page 48 TX-NR900/E PRINTED CIRCUIT BOARD VIEW FROM SOLDERING SIDE 6-1 C5006 P6006A C5146 C5006 Q5046 C5166 C5016 C5036 R5116 J6002 J6001 J6003 R5146 C5046 C5076 R5046 R5236 Q5026 D5006 J6004 R5216 R5246 J6005 J6006 NCAF-7707 CMK-P3X 25137707 C5005 P6005A C5145 C5005 Q5045 C5165 C5015...
  • Page 49 TX-NR900/E PRINTED CIRCUIT BOARD VIEW FROM SOLDERING SIDE 6-2 P6011A P6012A P6010A C5060 C5061 C5062 C5150 C5151 C5152 P5100 P5101 R5000 R5001 R5002 R5290 R5291 R5292 R5090 R5091 R5092 C5050 C5051 C5052 R5010 R5011 R5012 R5050 R5051 R5052 R5060 R5061 R5062 R5070 R5071...
  • Page 50 TX-NR900/E PRINTED CIRCUIT BOARD VIEW FROM SOLDERING SIDE 7-1 J6212 J6183 Q6052 Q6051 Q6002 Q6001 Q6062 Q6061 Q6060 J6217 R6092 R6091 J6185 R6090 J6197 J6184 J6233 J6231 J6198 J6154 J6171 J6232 J6210 J6199 J6172 J6211 R6521 J6182 J6167 J6230 J6228 J6196 J6194 J6208...
  • Page 51 TX-NR900/E PRINTED CIRCUIT BOARD VIEW FROM SOLDERING SIDE 7-2 J6183 Q6050 Q6000 Q6060 J6146 J6185 R6090 J6129 P6201 J6153 J6154 J6169 P6204A J6171 J6170 J6144 J6172 C6534 C6902 J6145 J6167 J6152 J6165 J6142 P6952 J6168 C6520 R6130 R6100 6081 R6080 J6166 C6050 J6126...
  • Page 52 TX-NR900/E PRINTED CIRCUIT BOARD VIEW FROM SOLDERING SIDE 8-1 P6800 J5112 J5102 P6800 C6850 J5104 R6800 J5105 J5124 L6800 J5116 R6810 L6802 RL6602A J5115 L6801 RL6602A J5107 FCSLRL +24V RL6600 +24V C6600 RL6602 RL6602 J5110 D6600 P6810D P6007A P6810D P6007A J5111 J5121 FRONT/CENTER CHANNELS SPEAKER...
  • Page 53 TXNR900/E PRINTED CIRCUIT BOARD VIEW FROM SOLDERING SIDE 8-2 JL9503A D6704 VOLH C5603 SEC1H PROTHEM AGND Q5604 VOLH FANDET C6705 DCDET R6708 D6701 R6707 D6702 Q6704 R6705 Q6701 R6721 Q5606 C6701 FAN DRIVE CIRCUIT PC BOARD(NAETC-7696) J5525 J5529 C6909 J5524 J5528 P9505A J5523...
  • Page 54 TX-NR900/E PRINTED CIRCUIT BOARD VIEW FROM SOLDERING SIDE 9-1 JL7201B 2.5A/125V JL7201C F9501C C9521 C9522 P9501 JL6953A J6742 C9512 C9510 R9509 C9510 Q9501 C9511 C9507 D9501 C9503 C9509 D9507 C9507 R9510 J6737 C9509 D9504 D9503 R9441 C9441 R9442 D9505 C9506 D9502 J6735 J6731...
  • Page 55 TX-NR900/E PRINTED CIRCUIT BOARD VIEW FROM SOLDERING SIDE 9-2 Q921 P922A P919 P920 R926 POWER T902 MPUGND J5416 +13VS C922 J5415 F902C P916 J5418 P918 J5414 J5422 J5413 P923 J5417 F903 T902 J5408 F903B J5407 F903A T2.5AL250V P917 J5406 J5410 J5404 J5405 P908...
  • Page 56 TX-NR900/E PRINTED CIRCUIT BOARD VIEW 10-4 P800A R2903 R2902 P7004A P7003A D2903 D2902 Q2906 Q2904 Q2902 Q2907 Q2905 Q2903 P4011A P4010A P4020A R2914 R2916 C2924 R2918 R2917 R2915 R2919 C2917 C2918 P3011A MAIN CONNECTOR P3010A PC BOARD(NAAR-7728) COMPONENT SIDE PC BOARD VIEW Q2908 P3211A P3210A...
  • Page 57 TX-NR900/E PRINTED CIRCUIT BOARD VIEW 10-3 P800A R2903 R2902 P7004A P7003A D2903 D2902 Q2906 Q2904 Q2902 Q2907 Q2905 Q2903 P4011A P4010A P4020A R2914 R2916 C2924 R2918 R2917 R2915 R2919 C2917 C2918 MAIN CONNECTOR P3011A P3010A PC BOARD(NAAR-7728) CHIP PARTS SIDE PC BOARD VIEW Q2908 P3211A...
  • Page 58 TX-NR900/E PRINTED CIRCUIT BOARD VIEW 10-2 C2906 NCAR-7728 25137728B P7201B P7002A R2912 R2913 P9502B WHITE SIDE WIRE P4012A P4012A P4011A LOCK MAIN CONNECTOR PC BOARD(NAAR-7728) CHIP PARTS SIDE PC BOARD VIEW NCETC-7733 25137733 Q231 Q232 R234 D201 R202 Q2922 C201 C207 Q202 Q221...
  • Page 59 TX-NR900/E PRINTED CIRCUIT BOARD VIEW 10-1 C2906 NCAR-7728 25137728B P7201B P7002A P7003A R2912 R2913 P9502B WHITE SIDE WIRE P4012A P4012A P4011A LOCK MAIN CONNECTOR PC BOARD(NAAR-7728) COMPONENT PARTS SIDE PC BOARD VIEW NCETC-7733 25137733 Q231 Q232 R234 D201 R202 Q2922 C201 C207 Q202...
  • Page 60 TX-NR900/E PRINTED CIRCUIT BOARD VIEW FROM COMPONENT SIDE 11-2 Soldering side NET-TUNE CIRCUIT PC BOARD(NADG-7662)
  • Page 61 TX-NR900/E PRINTED CIRCUIT BOARD VIEW FROM COMPONENT SIDE 11-1 Component side NET-TUNE CIRCUIT PC BOARD(NADG-7662)
  • Page 62 TX-NR900/E ADJUSTMENT AND CONFIRMATION PROCEDURES 3 Test Mode 1. Turn POWER button on. 2. Press and hold down CD button, then press DISPLAY and STANDBY/ON buttons. 3. After "TEST " on the FL tube is displayed, press CD button to set the unit to the test mode of FL tube. Note: VIDEO 1:TEST-1 VIDEO 2 :TEST-2 VIDEO 3 :TEST-3 VIDEO 4:TEST-4 Test mode of FL tube...
  • Page 63 TX-NR900/E 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 MULTI CHANNEL INPUT terminal. of each channel. Adjust the attenuator or Volume so that the output level becomes 35V p-p. Confirm that the speaker relay does not turn OFF when a 3.0 ohm load is connected.
  • Page 64 TX-NR900/E ADJUSTMENT AND CONFIRMATION PROCEDURES 1 Idling current adjustment Before Idling current adjustment, turn the trimming resistors R6040 to R6046 to counter-clockwise. Connect the DC voltmeter at the sockets P6080 to P6086. After turn POWER to ON, adjust the trimming resistors R6040, R6041 and R6042 so that the reading of voltmeter becomes 11 mV.
  • Page 65 REF. NO. PART NO. DESCRIPTION 27111236B Front bracket <B> 27111237B Front bracket <S> 27111238B Front bracket <G> 27191153B Holder. Jack 838430088 3TTB+8B(BC),Self-tapping screw 838130088 3TTB+8B,Self-tapping screw 28325948 Knob, pure <B> 28325949 Knob, pure <S/G> 28141447 Cushion 28191936 Clear plate 28133385 Back plate <B>...
  • Page 66 27190693A KGLS-6RF,Holder 27190266 KGLS-12RF,Holder 27190164 KGLS-14S,Holder 830440089 4TTC+8C(BC),Self-tapping screw 28141511 t1.0*5*5,Cushion 28141484 Cushion 27191112 KGPS-6RF,Holder 27141797 Retainer, fan 27150470 Shield plate, fan 838450108 5TTB+10B(BC),Self-tapping screw 880016 P3035B,Plastic rivet 27150471 Shield plate, amplifier 27150474 Shield plate, wire 27160489A Heat sink 801606 3SMH10W.SW+15B(CU),Special screw 27141681 Retainer, PC board...
  • Page 67 27262680 Plate, door <B> <D/A/T> 27262681 Plate, door <S> 27262682 Plate, door <G> 27262684 Plate, door <B> <P> 27190470 KGLS-18S, Holder 260208 Binder S 260258 Binder L 27225149 Shield case 27150485 Shield plate 223025 AC262,Isolated sheet E821 24502310 D09T-24PG10(EX),Fan F6901,F6902 252100 10A-EAK,Fuse <O>...
  • Page 68 1A956587-1A NADG-7687-1A,DSP circuit PC board ass'y <D/A> 1A956587-1B NADG-7687-1B,DSP circuit PC board ass'y <P> 1A956587-1C NADG-7687-1C,DSP circuit PC board ass'y <T/R/GT> 1A956562-2 NADG-7662-2,Nettune PC board ass'y 1A956590-1A NAAF-7690-1A,F/C ch. driver circuit PC board ass'y <D> 1A956590-1B NAAF-7690-1B,F/C ch. driver circuit PC board ass'y <P> 1A956590-1C NAAF-7690-1C,F/C ch.

  • Page 69: P/T/R/Gt 9

    1A956599-1D NAETC-7699-1D,PC board for holder <A> 1A956599-1E NAETC-7699-1E,PC board for holder <R> 1A956599-1F NAETC-7699-1F,PC board for holder <GT> 1A956500-1B NAETC-7700-1B,AC inlet PC board ass'y <P> 1A956500-1C NAETC-7700-1C,AC inlet PC board ass'y <T> 1A956500-1E NAETC-7700-1E,AC inlet PC board ass'y <R> 1A956500-1F NAETC-7700-1F,AC inlet PC board ass'y <GT>...
  • Page 70 1A956534-1B NAETC-7734-1B,Connector PC board ass'y <P/T/R/GT> 1A956534-1C NAETC-7734-1C,Connector PC board ass'y <A> 1A956538-1A NADIS-7738-1A,Display circuit PC board ass'y <D> 1A956538-1B NADIS-7738-1B,Display circuit PC board ass'y <P> 1A956538-1C NADIS-7738-1C,Display circuit PC board ass'y <A/GT> 1A956538-1D NADIS-7738-1D,Display circuit PC board ass'y <T/R> 1A956539-1A NAETC-7739-1A,Volume PC board ass'y <D>...

  • Page 71: Models 4

    TX-NR900/E PRINTED CIRCUIT BOARD-PARTS LIST 1 DSP circuit PC board (NADG-7687-1A/1B/1C) CIRCUIT NO. PART NO. DESCRIPTION Coils CIRCUIT NO. PART NO. DESCRIPTION L801,L802 231237M022R2 or NCH-1471 or Q100~Q102 22241448R2 NJM4580M-D 233533M022R2 NCH-1587-022M Q103 22241522R2 AK4528VF R124,R125 230959R1 BK1608LL241-T Q120,Q121 22274040ER2TO TC74VHC4040FT R133~R135 230958R1...

  • Page 72: P/T/Gt

    TX-NR900/E Note: <D>: 120V model only <GT>: 220-230 V model only PRINTED CIRCUIT BOARD-PARTS LIST 2 <P>: European model only <A>: Australian model only <T>: Worldwide model only <R>: Chinese model only <O>: Except 120V model F/C ch. driver circuit PC board (NAAF-7690-1A/1B/1C/1D/1E/1F) Primary circuit PC board (NAPS-7691-1A/1B/1C/1D/1E/1F) CIRCUIT NO.
  • Page 73 TX-NR900/E Note: <D>: 120V model only <GT>: 220-230 V model only PRINTED CIRCUIT BOARD-PARTS LIST 3 <P>: European model only <A>: Australian model only <T>: Worldwide model only <R>: Chinese model only Bias selector relay PC board (NAPS-7692-1A/1B/1C/1D/1E/1F) <O>: Except 120V model CIRCUIT NO.
  • Page 74 TX-NR900/E CAUTION: Replacement for transistor of mark *, if necessary PRINTED CIRCUIT BOARD-PARTS LIST 4 must be made from the same beta group (H ) as the original type. CIRCUIT NO. PART NO. DESCRIPTION CIRCUIT NO. PART NO. DESCRIPTION Transistors Diodes D6701,D6702 223163,...
  • Page 75 TX-NR900/E PRINTED CIRCUIT BOARD-PARTS LIST 5 Note: <D>: 120V model only <P>: European model only CIRCUIT NO. PART NO. DESCRIPTION CIRCUIT NO. PART NO. DESCRIPTION <T>: Worldwide model only Plugs Sockets <O>: Except 120V model P6080~P6086 25055038 NPLG-2P29 P6003A~P6006A 25052287 NSCT-4P2184 <GT>: 220-230 V model only P6931...
  • Page 76 TX-NR900/E PRINTED CIRCUIT BOARD-PARTS LIST 6 NOTE: THE COMPONENTS IDENTIFIED BY MARK ! ARE CRITICAL FOR RISK OF FIRE AND ELECTRIC SHOCK. REPLACE ONLY WITH PART NUMBER SPECIFIED. CIRCUIT NO. PART NO. DESCRIPTION Fuse holders CIRCUIT NO. PART NO. DESCRIPTION F9501A,F9501B 25052133 NSCT-1P2031 Capacitors...
  • Page 77 TX-NR900/E PRINTED CIRCUIT BOARD-PARTS LIST 7 CIRCUIT NO. PART NO. DESCRIPTION CIRCUIT NO. PART NO. DESCRIPTION Transistors Capacitors C3120,C3121 354742219 or 220uF,16V, Elect. or Q2909 2216175R2 or KTC3875-GR or 394642217 220uF,16V, Elect. 2213145R2 2SC2712-GR C3122,C3123 354744709 or 47uF,16V, Elect. or Q2931 2212855 or 2SB1068-U or...
  • Page 78 TX-NR900/E PRINTED CIRCUIT BOARD-PARTS LIST 8 Composite video PC board (NAVD-7729-1A/1B/1C) S video PC board (NAVD-7730-1A/1B/1C) CIRCUIT NO. PART NO. DESCRIPTION CIRCUIT NO. PART NO. DESCRIPTION Q2001 22241848R2 LC74761M-9845 Q2451 22241849R2 MM1512 Q2010 22241619R2 TC9273F-004 Q2501,Q2511 222740515R2 74HC4051AF Q2101,Q2201 222740515R2 74HC4051AF Q2502,Q2602 22241443R2...
  • Page 79 TX-NR900/E Note: <D>: 120V model only <GT>: 220-230 V model only PRINTED CIRCUIT BOARD-PARTS LIST 9 <P>: European model only <A>: Australian model only <T>: Worldwide model only <R>: Chinese model only <O>: Except 120V model RS232 terminal PC board (NAETC-7733-1A/1B/1C) CIRCUIT NO.
  • Page 80 TX-NR900/E PRINTED CIRCUIT BOARD-PARTS LIST 10 Front video terminal PC board (NAETC-7741-1A/1B/1C/1D) CIRCUIT NO. PART NO. DESCRIPTION Terminal P2510 25045678 NPJ-3PDB475 Sockets P2506B 2009990575UL NSAS-10P0784 P2508 25051569 NSCT-4P1356 P3220B 2009990420 NSAS-6P0564 Front optical terminal PC board (NAETC-7742-1A/1B/1C/1D) CIRCUIT NO. PART NO. DESCRIPTION Photo coupler U2501...
  • Page 81 TX-NR900/E PACKING VIEW-PARTS LIST REF. NO. PART NO. DESCRIPTION 29092063-1 29095906 Protection sheet 29100035-1 720*1020, Polybag 29110149 Tape, cellophane 29110148 PP tape 29053942-1 Carton box <B> <D/A> 29053944-1 Carton box <B> <P> 29053943 Carton box <B> <T> 29053946-1 Carton box <G> <T/R/GT> 29053973-1 Carton box <G>...
  • Page 82 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 Liegnitzerstrasse 6,82194 Groebenzell, GERMANY Tel: +49-8142-4401-0 Fax: +49-8142-4401-555 E-mail: info@onkyo.de...

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