Integra DTR-8.3 Service Manual
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Integra DTR-8.3 Service Manual

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SERVICE MANUAL
SERVICE MANUAL
AV RECEIVER
DTR-8.3
MODEL
Black model
BUDD
120V AC, 60Hz
BUPA
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. 3759
Dec., 2002
–
CONT
+
LIGHT
ON THE
DTR-8.3
MUTE
+
CH
–
VOL

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Summary of Contents for Integra DTR-8.3

  • Page 1 DTR-8.3 Ref. No. 3759 SERVICE MANUAL SERVICE MANUAL Dec., 2002 AV RECEIVER DTR-8.3 MODEL – CONT MUTE LIGHT – Black model BUDD 120V AC, 60Hz BUPA 230~240V AC, 50Hz SAFETY-RELATED COMPONENT WARNING!! COMPONENTS IDENTIFIED BY MARK ON THE SCHEMATIC DIAGRAM AND IN THE PARTS LIST ARE CRITICAL FOR RISK OF FIRE AND ELECTRIC SHOCK.

  • Page 2: Specifications

    DTR-8.3 SPECIFICATIONS Tuning range AMPLIFIER SECTION USA & Canadian models: 530 to 1,710kHz (10kHz steps) Continuous average power output (FTC) Australian models: 522 to 1,611 kHz (9-kHz steps) All channels: 110 W per channel min. RMS at 8 Usable sensitivity: 30 µV...

  • Page 3: Service Procedures

    DTR-8.3 SERVICE PROCEDURES 1. Replacing the fuses 3. Safety-check out (Only U.S.A. model) This symbol located near the fuses indicates After correcting the original service problem, perform the that the fuse used is fast operating type. For continued following safety check before releasing the set to the protection against fire hazard, replace with same type fuse.
  • Page 4 DTR-8.3 EXPLODED VIEW P1010 P603 P603C P602 P7201 P7701 F901 P7701 Q6062 Q6052 Q6056 Q6066 F6901 F6902 Q9422B T901 F9501 Q9422A F9502 F9504 F9503 E821...

  • Page 5: Block Diagram

    ZONE2 LIN EOUT MUTE RIGHT -6dB SUBMICRO- VIDEO 4 L REC/Z2 MAIN MICRO- PROCESSOR MUTE PROCESSOR TX-NR90 0 /DTR-8.3/7. 3 only M3062FGAFP M3062FGAFP VIDEO 5 L ( FRON T) Key Matrix FL DRIVER LC74 DRIVER Volume Control M66004FP I SDET...
  • Page 6 DTR-8.3 BLOCK DIAGRAM 2 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...

  • Page 7: Schematic Diagram

    DTR-8.3 SCHEMATIC DIAGRAM 1 Sub-microprocessor and display sections P7201A TO NAAR-7728 (SCH. 9) TO NAPS-7708 (SCH. 8) JL7201A NAETC-7742 U2501 +5 V DGND TORX178A R2576 C7501 474Z NAETC-7741 R7501 P2508 R7502 220 NAETC-7740 C7502 474 P7481 VIDEO5 HEADPHONES C7509 474...
  • Page 8 DTR-8.3 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 NADIS-7738 C7507 104Z C7504 101J C7508 101J C7505 C7503 C7506 104Z 100/6.3...
  • Page 9 DTR-8.3 SCHEMATIC DIAGRAM 2-1 DSP and Main Microprocessor Section NADG-7687 P701 DSP1GP8 R7102 DSP1GP9 DSP1GP10 R7103 C706 104Z VSS11 VDDI 3 R730 1K INT1 Q705CY7C1019 BV33 -15V CT Q706 CY7C101 9BV3 3-15 VCT EXLOCK MOD0 MOD1 R727 330 DSP1BST TST1 /BT ACT...
  • Page 10 DTR-8.3 SCHEMATIC DIAGRAM 2-2 DSP and Main Microprocessor Sections DSPDA DSPCL TO NAETC-7696 (SCH. 7) P77 01A KRC104S RN1404 Q700 1 C700 4 1/50 CSTCV 16.0 MXJ0C UDZ6.2B D7004 D700 5 +13V NADG-7687 FLASHDO C7005 100/6.3 FLASHBY VCCPUP X70 00...

  • Page 11: Audio Input/Output

    DTR-8.3 SCHEMATIC DIAGRAM 3-2 Audio Input/Output TO TUNER PACK P1010A NAAF-7719 C1006 3.3/50 Q1001 78M12 R1005 R1000 R1001 100K R1004 C1002 C1001 100K 10/16 104Z R1003 100K C1005 R1006 C1007 R1002 101J 10/16 100K (CH) C1003 C1004 3.3/50 101J (CH)
  • Page 12 DTR-8.3 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...
  • Page 13 DTR-8.3 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...
  • Page 14 DTR-8.3 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)

  • Page 15: Power Amplifier Section

    DTR-8.3 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)
  • Page 16 DTR-8.3 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...
  • Page 17 DTR-8.3 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...
  • Page 18 DTR-8.3 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...
  • Page 19 DTR-8.3 SCHEMATIC DIAGRAM 7 Speaker terminal and fan drive sections Australian model Australian model NAETC-7694 NAETC-7695 P6800 L6800 S1.3C L6803 S1.3C P6802 SPEAKERS SPEAKERS R6800 22 R6803 22 R6810 22 R6813 22 120V model 120Vmodel C6600 D6603 103Z D6600 C6603...

  • Page 20: Power Supply Section

    DTR-8.3 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...

  • Page 21: Mother Board Section

    DTR-8.3 SCHEMATIC DIAGRAM 9-2 Mother Board Section NADIS-7746(SCH. 1) NAPS-7708 (SCH. 8) P9502B 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 1SS352 R2903...
  • Page 22 DTR-8.3 SCHEMATIC DIAGRAM 9-1 Mother Board Section P7201B NAETC-7733 NAAR-7728 P201 RS-232 C4+ 20 L201 GND19 BLM21A102F C4- 18 C204 VSS 17 1/50 C202 STBY 16 1/50 VCHA15 SUBREQ R201 330 232TXD R205 330 MAINCL MAINSO SUBSO R203 330 R208...

  • Page 23: Main Memory

    DTR-8.3 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%...
  • Page 24 DTR-8.3 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...
  • Page 25 DTR-8.3 SCHEMATIC DIAGRAM 10-2 Video Section (Australian model only) R2403 75 Q2401-Q2414 Q2404 C2010 100/6.3 RN1444 P2501 C2011 474J C2012 0.47/50 MONITOR 270J C2433 220J 104Z DVDC C2432 NAVD-7729 R2401 DVDY 100/6.3 Q2401 P2502 DVDY DVDC C2431 104Z C2016 C2612...
  • Page 26 DTR-8.3 SCHEMATIC DIAGRAM 10-1 Video Section (Australian model only) Q2001 LC74761M-9845 Vdd1 X2001 R2009 XTL14.32MHZ XTA LIN1 Q2301 47K R2010 C2001 100D 2.7K SYN CDET D2001 XTA LOUT1 C2002 180J VCOOUT Q2302 C2013 270J P2001 HSYNCOUT C2014 220J R2301 VCOIN...
  • Page 27 DTR-8.3 SCHEMATIC DIAGRAM 13 Component video section(Australian model only) NAVD-7731 D2701 RL2701 COMPONENT OUT 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 104Z P2702...
  • Page 28 DTR-8.3 SCHEMATIC DIAGRAM 13 Composite video section (USA model only) Q2301~Q2309 Q2001 LC74761M-9848 RN1444 NAVD-7753 Vdd1 C2010 100/6.3 X2001 R2009 C2011 474J Q2301 XTL14.32MHZ C2001 47K R2010 XTALIN1 C2012 0.47/50 D2001 2.7K 100D SYNCDET C2002 XTALOUT1 C2013 270J Q2302 P2001...
  • Page 29 DTR-8.3 SCHEMATIC DIAGRAM 12-1 Component and S video sections (USA model) P2704B P2705B P2855B D2804 1SS352 RL2804 Q2751 TC90A69F C2751 103Z C2764 BIAS 103Z C2752 103Z 2SC27 D2803 COUT 1SS352 L2755 C2803 VDD1 VSS1 220K 104Z 103Z TESTI1 YOUT C2765...
  • Page 30 DTR-8.3 SCHEMATIC DIAGRAM 13 Composite video section (USA model only) Q2301~Q2309 Q2001 LC74761M-9848 RN1444 NAVD-7753 Vdd1 C2010 100/6.3 X2001 R2009 C2011 474J Q2301 XTL14.32MHZ C2001 47K R2010 XTALIN1 C2012 0.47/50 D2001 2.7K 100D SYNCDET C2002 XTALOUT1 C2013 270J Q2302 P2001...
  • Page 31 DTR-8.3 WIRING VIEW 2 (USA model) P3601 P3600 P4601 P4600 MAIN CONNECTOR U105 U104 U103 U102 U101 U100 P101 PC BOARD (NAAR-7728) PREAMPLIFIER P33 (SCH. P35) PC BOARD (NAAF-7718) P800 P15 (SCH. P17) FRONT OPTICAL INPUT PC DSP CIRCUIT BOARD...
  • Page 32 DTR-8.3 WIRING VIEW 1 (USA model) RS232 TERMINAL PC BOARD (NAETC-7733) P204 P203 P202 P205 P606B P201 P607B MAIN CONNECTO 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...
  • Page 33 DTR-8.3 WIRING VIEW 2 (Australian model) P3601 P3600 P4601 P4600 U105 U104 U103 U102 U101 U100 P101 CTOR 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.
  • Page 34 DTR-8.3 WIRING VIEW 1 (Australian model) RS232 TERMINAL PC BOARD (NAETC-7733) P204 P203 P202 P205 P606B P201 P607B MAIN CONNECTO 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...
  • Page 35 DTR-8.3 WIRING VIEW 3 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 circuit PC board P6931A (NAETC-7697) (NAETC-7714) P28 (SCH. P29) P32 (SCH.
  • Page 36 DTR-8.3 WIRING VIEW 4 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)
  • Page 37 DTR-8.3 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...
  • Page 38 DTR-8.3 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...
  • Page 39 DTR-8.3 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...

  • Page 40: Printed Circuit Board View

    DTR-8.3 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...
  • Page 41 DTR-8.3 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...
  • Page 42 DTR-8.3 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...
  • Page 43 DTR-8.3 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...
  • Page 44 DTR-8.3 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 J309 J307 J306 P3001 P3000...
  • Page 45 DTR-8.3 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...
  • Page 46 DTR-8.3 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...
  • Page 47 DTR-8.3 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...
  • Page 48 DTR-8.3 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...
  • Page 49 DTR-8.3 PRINTED CIRCUIT BOARD VIEW FROM SOLDERING SIDE 7 J6183 Q6050 Q6000 Q6060 J6146 J6185 R6090 J6129 P6201 J6184 J6153 J6154 J6169 P6204A J6171 J6170 J6144 J6172 C6534 C6902 J6145 J6167 J6152 J6165 J6142 P6952 J6168 C6520 R6130 R6100 R6081...
  • Page 50 DTR-8.3 PRINTED CIRCUIT BOARD VIEW FROM SOLDERING SIDE 7 J6212 J6183 Q6052 Q6051 Q6002 Q6001 Q6062 Q6061 J6217 R6092 R6091 J6185 J6197 J6184 J6233 J6231 J6198 J6171 J6232 J6210 J6199 J6172 J6211 R6521 J6182 J6167 J6230 J6228 J6196 J6194 J6208...
  • Page 51 DTR-8.3 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...
  • Page 52 DTR-8.3 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...
  • Page 53 DTR-8.3 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...
  • Page 54 DTR-8.3 PRINTED CIRCUIT BOARD VIEW 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 55 DTR-8.3 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...
  • Page 56 DTR-8.3 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...
  • Page 57 DTR-8.3 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...
  • Page 58 DTR-8.3 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...
  • Page 59 DTR-8.3 PRINTED CIRCUIT BOARD VIEW FROM COMPONENT SIDE 11-2 Soldering side NET-TUNE CIRCUIT PC BOARD(NADG-7662)
  • Page 60 DTR-8.3 PRINTED CIRCUIT BOARD VIEW FROM COMPONENT SIDE 11-1 Component side NET-TUNE CIRCUIT PC BOARD(NADG-7662)
  • Page 61 DTR-8.3 PRINTED CIRCUIT BOARD VIEW 13-1 (USA model) P2801 P2803 P2802 P2803 P2801 P2802 C2802 C2801 C2803 RL2802 RL2801 RL2804 RL2803 C2804 R2811 R2831 C2836 C2805 R2816 R2823 C2811 R2822 C2826 NCVD-7755 C2835 R2815 R2832 25137755 R2812 R2814 C2831 C2812...
  • Page 62 DTR-8.3 PRINTED CIRCUIT BOARD VIEW 13-2 (USA model) C2779 R2758 R2743 R2759 C2573 C2741 R2732 R2707 C2767 C2766 R2733 C2769 C2575 C2731 C2733 C2777 C2776 C2574 R2746 C2773 R2756 R2755 L2756 C2772 C2781 L2757 C2780 C2775 R2757 R2722 C2774 Q2701...
  • Page 63 DTR-8.3 PRINTED CIRCUIT BOARD VIEW 12-1(Australian model only) P2002 P2003 P2001 R2302 R2305 R2307 R2310 C2309 Q2303 C2301 R2311 C2307 R2308 C2308 R2312 R2301 R2306 R2309 C2303 C2302 C2304 C2306 R2313 Q2302 C2028 C2026 Q2306 Q2301 R2304 Q2305 C2101 Q2309...
  • Page 64 TX-SR800 SUB-MICROPROCESSOR-CONNECTION DIAGRAM 1 D 7 5 3 7 Q 7 5 4 7 P 2 0 4 F 1 1 Q 7 2 0 2 B U F F E R P 7 4 8 1 P H O N E S 1 0 G 1 1 G 1 2 G...
  • Page 65 DTR-8.3 SUB-MICROPROCESSOR-CONNECTION DIAGRAM 2 D 7 5 3 4 R E D Q 7 5 3 4 G R E E N D 7 5 3 2 D 7 5 3 0 D 7 5 2 7 D 7 5 2 2...
  • Page 66 DTR-8.3 MAIN MICROPROCESSOR-CONNECTION DIAGRAM 2 Shows a left channel only. LEFT CH. RL6902 Q4600 Q4610 OUTPUT RL6901 Q605 THERMAL RN1441 RN1441 DET. CONVERTER CIRCUIT WM8716 SURROUND Q6901 BACK PRE +/-B OUTPUT Q4605 Q4615 RELAY Q4200 FRONT CHANNEL RN1441 RN1441 ELECTRONIC...
  • Page 67 DTR-8.3 MAIN MICROPROCESSOR-CONNECTION DIAGRAM 1 Q604,Q607, PROTEC- Q4401 Q4400 THERMA Q180 Q616 TION TONE TONE DET. CIRCUIT NETTUNE CONTROL CONTROL CIRCUIT DECODER DC/CURRENT NJU7308G NJU7308G LC72723M RESET PIN POWER FAILURE DET. Q2821 VIDEO X7000 ENCODER 16MHz TA1270BF ~XPOWER ~SUBRESET ~SUBPOFF...
  • Page 68 DTR-8.3 SUBMICROPROCESSOR-TERMINAL DESCRIPTION...
  • Page 69 DTR-8.3 MAIN MICROPROCESSOR-TERMINAL DESCRIPTION Function Description Function Description 1 DSPDA Serial data output pin to transfer the data to DSP, DIR, Nettune DAC and Second PLL ICs. 51 ~CODECPD Power down output pin of CODEC IC. 2 DSPCL Serial clock output pin to transfer the data to DSP, DIR and Nettune DAC ICs.

  • Page 70: Test Mode

    DTR-8.3 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.
  • Page 71 DTR-8.3 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.
  • Page 72 DTR-8.3 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 73: Exploded View Parts List

    DTR-8.3 Note: EXPLODED VIEW-PARTS LIST <D>: 120V model only <A>: Australian model only REF. NO. PART NO. DESCRIPTION REF. NO. PART NO. DESCRIPTION 1A956590-1H NAAF-7690-1H, F/C ch. driver circuit PC 1A956520-1C NAAF-7720-1C, Video terminal PC board ass'y <D> board ass'y <A>...
  • Page 74 DTR-8.3 Note: EXPLODED VIEW-PARTS LIST <D>: 120V model only <A>: Australian model only REF. NO. PART NO. DESCRIPTION REF. NO. PART NO. DESCRIPTION 27111242C Front bracket 27123034-1 Rear panel <D> 27191153B Holder, jack 27123042-1 Rear panel <A> 838430088 3TTB+8B(BC), Self-tapping screw...
  • Page 75 DTR-8.3 PACKING VIEW VIEW-PARTS LIST REF. NO. PART NO. DESCRIPTION 29092063-1 29095906 Protection sheet, door 29100035-1 720*1020, Polybag 29110149 Tape, cellophane 29110148 PP tape 29053952-1 Carton box 29100097-1A 350*250, Polybag 29343415 Instruction manual 29343416 Instruction manual, digits 29343458 Instruction E, Net-tune...
  • Page 76 DTR-8.3 PRINTED CIRCUIT BOARD-PART LIST 1 Note: <D>: 120V model only <A>: Australian model only DSP circuit PC board (NADG-7687-1C) CIRCUIT NO. PART NO. DESCRIPTION CIRCUIT NO. PART NO. DESCRIPTION Capacitors C100~C103 356744709R2 47uF,16V, Elect., chip Q100~Q102 22241448R2 NJM4580M-D C108,C110 356724709R2 47uF,6.3V, Elect., chip...
  • Page 77 DTR-8.3 PRINTED CIRCUIT BOARD-PART LIST 2 Note: <D>: 120V model only <A>: Australian model only CIRCUIT NO. PART NO. DESCRIPTION CIRCUIT NO. PART NO. DESCRIPTION Capacitors Capacitors C100~C103 356744709R2 47uF,16V, Elect., chip C901 3500196S RE275V-103M,IS C108,C110 356724709R2 47uF,6.3V, Elect., chip...
  • Page 78 DTR-8.3 PRINTED CIRCUIT BOARD-PART LIST 3 Note: <D>: 120V model only <A>: Australian model only CIRCUIT NO. PART NO. DESCRIPTION Fan driver circuit PC board (NAETC-7696-1H/1J) Plugs CIRCUIT NO. PART NO. DESCRIPTION P6951 25055172 NPLG-9P156 Transistors P6952A 25055168 NPLG-5P152 Q5601...
  • Page 79 DTR-8.3 PRINTED CIRCUIT BOARD-PART LIST 4 Note: <D>: 120V model only <A>: Australian model only Power amplifier PC board (NAAF-7706-1C/1D) CIRCUIT NO. PART NO. DESCRIPTION CIRCUIT NO. PART NO. DESCRIPTION Resistors Transistors R6270~R6272 415470224 2.2ohm+/-5%,1/4W,NF carbon Q6000~Q6006 2213284 or 2SC1740S-R or...
  • Page 80 DTR-8.3 PRINTED CIRCUIT BOARD-PART LIST 5 Note: <D>: 120V model only <A>: Australian model only CIRCUIT NO. PART NO. DESCRIPTION CIRCUIT NO. PART NO. DESCRIPTION Capacitors Resistors C5073~C5076 394691007 10uF,100V, Elect. R9403 453530224 2.2ohm+/-5%, 1/2W, Metal C5083~C5086 394672207 22uF,63V, Elect.
  • Page 81 DTR-8.3 PRINTED CIRCUIT BOARD-PART LIST 6 Note: <D>: 120V model only <A>: Australian model only CIRCUIT NO. PART NO. DESCRIPTION Audio terminal PC board (NAAF-7719-1C/1E) Transistors CIRCUIT NO. PART NO. DESCRIPTION Q4420~Q4422 2216756R2 2SA1163-BL Q4600~Q4607 2215410R2 RN1441 Q1001 222780125 78M12HF...
  • Page 82 DTR-8.3 PRINTED CIRCUIT BOARD-PART LIST 7 Note: <D>: 120V model only <A>: Australian model only Connector PC board (NAETC-7725-1E) CIRCUIT NO. PART NO. DESCRIPTION Plugs CIRCUIT NO. PART NO. DESCRIPTION Plugs P3010A 25055703 NPLG-7P659 P2007A 25055711 NPLG-15P667 P3011A 25055711 NPLG-15P667...
  • Page 83 DTR-8.3 PRINTED CIRCUIT BOARD-PART LIST 8 Note: <D>: 120V model only <A>: Australian model only CIRCUIT NO. PART NO. DESCRIPTION RS232 terminal PC board (NAETC-7733-2A/2B) Terminals CIRCUIT NO. PART NO. DESCRIPTION P2001~P2003 25045363 NPJ-3PDYE208 Sockets Q201 22241537R2 MPD4721GS P2005B 25051238...
  • Page 84 DTR-8.3 PRINTED CIRCUIT BOARD-PART LIST 8 Note: <D>: 120V model only <A>: Australian model only CIRCUIT NO. PART NO. DESCRIPTION Front video terminal PC board (NAETC-7741-1F/1G) Transistors CIRCUIT NO. PART NO. DESCRIPTION Q7202 2216230R2 or KRA103-S or Terminal 2214540R2 RN2403...
  • Page 85 DTR-8.3 PRINTED CIRCUIT BOARD-PART LIST 10 Note: <D>: 120V model only <A>: Australian model only CIRCUIT NO. PART NO. DESCRIPTION Component video terminal PC board (NAVD-7755-1A) Terminals (120V model only) P2001~P2003 25045363 NPJ-3PDYE208 CIRCUIT NO. PART NO. DESCRIPTION P2005B 25051238...
  • Page 86 DTR-8.3 PRINTED CIRCUIT BOARD-PART LIST 11 Note: <D>: 120V model only <A>: Australian model only CIRCUIT NO. PART NO. DESCRIPTION Capacitors C602,C614 395530477R2 4.7uF,10V, Tantal C615,C637 395521017R2 100uF,6.3V, Tantal C638 356721019R2 100uF,6.3V, Elect., chip C640 393322217 220uF,6.3V, Elect. C641 374721044 0.1uF+/-5%,50V,Plastic...

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