Integra DTR-7.3 Service Manual
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Integra DTR-7.3 Service Manual

Integra DTR-7.3 Service Manual

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3 7 63 1515 0
TE
L 13942296513
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http://www.xiaoyu163.com
SERVICE MANUAL
SERVICE MANUAL
AV RECEIVER
MODEL
BUDD
BUPA
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.
x
ao
u163
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i
http://www.xiaoyu163.com
2 9
8
DTR-7.3
Black model
Q Q
3
6 7
1 3
1 5
120V AC, 60Hz
230~240V AC, 50Hz
ON THE
co
.
9 4
2 8
Ref. No. 3758
Nov., 2002
0 5
8
2 9
9 4
2 8
m
DTR-7.3
9 9
9 9

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Summary of Contents for Integra DTR-7.3

  • Page 1 DTR-7.3 3 7 63 1515 0 Ref. No. 3758 SERVICE MANUAL SERVICE MANUAL Nov., 2002 AV RECEIVER DTR-7.3 MODEL Black model L 13942296513 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-7.3 3 7 63 1515 0 SPECIFICATIONS AMPLIFIER SECTION TUNER SECTION Continuous average power output (FTC) All channels: 100 W per channel min. RMS at 8 Tuning range Ohm , 2 channels driven from 20Hz to USA & Canadian models: 87.5–108.0 MHz (100-kHz steps)

  • Page 3: Service Procedures

    DTR-7.3 3 7 63 1515 0 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: Block Diagram

    http://www.xiaoyu163.com BLOCK DIAGRAM 3 7 63 1515 0 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 24.576MHZ COAXIAL 3 POST DECODING 50KLPF PROCESSING...
  • Page 5 DTR-7.3 3 7 63 1515 0 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 BYPASS MC R TC94A07F FRONT SPEAKERS...
  • Page 6 DTR-7.3 3 7 63 1515 0 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...
  • Page 7 DTR-7.3 3 7 63 1515 0 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...

  • Page 8: Schematic Diagram

    DTR-7.3 3 7 63 1515 0 SCHEMATIC DIAGRAM 6-2 Power amplifier Section R6230 (54.9V) R6270 (55.0V) R6080 Q6000 1.2V (1/4W) (1/4W) (1/2W) R6160 Q6050 R6010 Q6030 R6510 Q6090 4.7K (54.4V) 0.22 Q6070 R6140 0.5V (1/2W) R6250 L6000 0.6V R6020...
  • Page 9 3 7 63 1515 0 DTR-7.3 SCHEMATIC DIAGRAM 6-1 Power amplifier Section NAAF-7706 (-55.0V) 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 C6003 0.22...
  • Page 10 DTR-7.3 3 7 63 1515 0 SCHEMATIC DIAGRAM 5-2 Driver Circuit Section NAAF-7707 R5303 R5143 R5133 R5183 R5233 100(1/4W) R5113 R5123 (1/4W) (1/4W) (1/4W) (1/4W) (53.8V) 2.2K 2.2K (53.2V) R5073 100K (53.2V) Q5053 Q5043 (52.7V) 1.2V Q5033 (52.6V) C5123...
  • Page 11 DTR-7.3 3 7 63 1515 0 SCHEMATIC DIAGRAM 5-1 Driver Circuit Section NAAF-7690 (54.6V) R5300 R5140 R5130 R5180 R5230 68(1/4W) R5110 R5120 (1/4W) (1/4W) (1/4W) (1/4W) (53.8V) 2.2K 2.2K R5070 (49.8V) (53.3V) 100K Q5050 Q5040 1.2V (52.7V) Q5030 (52.6V)
  • Page 12 DTR-7.3 3 7 63 1515 0 SCHEMATIC DIAGRAM 1-2 Sub-microprocessor and display sections NADIS-7746 Q7501 HNA-16MM40T Q7503 Q7504 TO NAPS-7708 (SCH. 8) JL7201A M66005-0001AFP S7543 S7541 AUDIO SEL STANDBY Q7502 -V P FLAC1 Q7533 Q7534 Q7535 FLGND FLAC2 C7507 104Z + 5.6S...
  • Page 13 DTR-7.3 3 7 63 1515 0 SCHEMATIC DIAGRAM 1-1 Sub-microprocessor and display sections P7201A (SCH. 9) NAAR-7728 NADIS-7746 12.0 C7501 474Z R7501 220 R7502 R7289 R7389 R7290 R7390 1 0K 474Z C7502 NAETC-7749 P7481 474Z HEADPHONES C7509 D7501 D7502...
  • Page 14 DTR-7.3 3 7 63 1515 0 SCHEMATIC DIAGRAM 2-1 DSP and Main Microprocessor Sections NADG-7687 P701 DSP1GP8 R7102 DSP1GP9 DSP1GP10 R7103 C706 104Z VSS11 VDDI 3 R730 1K Q705 CY7C1019 BV33 -15V CT Q706 CY7C101 9BV3 3-15 VCT INT1...
  • Page 15 DTR-7.3 3 7 63 1515 0 SCHEMATIC DIAGRAM 2-2 DSPDA DSPCL TO NAETC-7696 (SCH. 7) P77 01A NADG-7687 KRC104S DSP and Main RN1404 Q700 1 C700 4 1/50 Microprocessor CSTCV 16.0 MXJ0C UDZ6.2B D7004 D700 5 +13V Sections FLASHDO C7005 100/6.3...

  • Page 16: Audio Input/Output

    DTR-7.3 3 7 63 1515 0 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...
  • Page 17 DTR-7.3 3 7 63 1515 0 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...
  • Page 18 DTR-7.3 3 7 63 1515 0 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...

  • Page 19: Power Supply Section

    DTR-7.3 3 7 63 1515 0 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 20: Mother Board Section

    DTR-7.3 3 7 63 1515 0 SCHEMATIC DIAGRAM 9-2 Mother board section NADIS-7746 P9502B NAPS-7708 (SCH. 1) (SCH. 8) R2912 4. 7 1/2 W D2931 R2931 RL1N4003 1/2W D2902 RL1N4003 R2933 22 1SS352 R2902 1/2W Q2907 Q2903 D2932 SC2712...
  • Page 21 DTR-7.3 3 7 63 1515 0 SCHEMATIC DIAGRAM 9 Mother board section NADIS-7746(SCH. 1) NAETC-7733 NAAR-7728 P7201B P201 RS-232 L201 GND19 BLM21A102F C204 1/50 C202 STBY 1/50 SUBREQ VCHA15 232TXD R201 330 R205 330 MAINCL MAINSO SUBSO R203 330...
  • Page 22 DTR-7.3 3 7 63 1515 0 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%...
  • Page 23 DTR-7.3 3 7 63 1515 0 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...
  • Page 24 DTR-7.3 3 7 63 1515 0 SCHEMATIC DIAGRAM 10-1 Composite Vi deo 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...
  • Page 25 DTR-7.3 3 7 63 1515 0 SCHEMATIC DIAGRAM 10-2 S Vi deo Section R2403 75 Q2401-Q2414 Q2404 RN1444 P2501 MONITOR C2433 104Z DVDC C2432 R2401 DVDY 100/6.3 Q2401 P2502 DVDY DVDC C2431 104Z C2612 C2611 C2602 104Z 104Z 104Z...
  • Page 26 DTR-7.3 3 7 63 1515 0 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)

  • Page 27: Wiring View

    DTR-7.3 3 7 63 1515 0 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...
  • Page 28 DTR-7.3 3 7 63 1515 0 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...
  • Page 29 DTR-7.3 3 7 63 1515 0 WIRING VIEW 1-2 P15: Show the page of PC board view. (SCH. P17): Show the page of schematic diagram. P3601 P3600 P4601 P4600 U105 U104 U103 U102 U101 U100 P101 ECTOR PREAMPLIFIER PC BOARD...
  • Page 30 DTR-7.3 3 7 63 1515 0 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)
  • Page 31 DTR-7.3 3 7 63 1515 0 PRINTED CIRCUIT BOARD VIEW FROM SOLDERING SIDE 2-3 FLAC2 FLGND FLAC1 NCETC-7747 25137747 STANDBY C7512 STANDBY S7541 D7533 FLAC1 FLGND FLAC2 +5.6V STANDBYSW STANDBY PURE UPSAMPLING AUDIO-SEL +12V D7534 D7535 PURE UPSAMPLING COMPONENT SIDE...
  • Page 32 DTR-7.3 3 7 63 1515 0 PRINTED CIRCUIT BOARD VIEW FROM SOLDERING SIDE 1 NCETC-7748 25137748 S7569 COMPONENT SIDE SOLDERING SIDE VOLUME PC BOARD(NAETC-7748) P7481 C7482 C7481 J7403 L7483 P7481 HPGND HPDET C7484 P7481 P7483 L 13942296513 COMPONENT SIDE...
  • Page 33 DTR-7.3 3 7 63 1515 0 PRINTED CIRCUIT BOARD VIEW P7559A FROM SOLDERING SIDE 2-1 P7201A J7304 C7201 J7305 J7303 J7302 J7295 J7294 J7300 J7293 J7296 J7299 J7298 J7290 J7292 J7289 J7288 J7287 J7291 J7286 J7285 D7537 D7536 J7279...

  • Page 34: Printed Circuit Board View

    DTR-7.3 3 7 63 1515 0 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...
  • Page 35 DTR-7.3 3 7 63 1515 0 PRINTED CIRCUIT BOARD VIEW L7201 FROM SOLDERING SIDE 2-2 R7316 C7212 R7315 C7211 DISPLAY CIRCUIT PC BOARD R7555 R7497 (NADIS-7746) R7556 R7578 R7557 R7493 R7577 R7495 R7494 R7554 R7491 R7490 R7563 R7553 R7496...
  • Page 36 DTR-7.3 3 7 63 1515 0 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...
  • Page 37 DTR-7.3 3 7 63 1515 0 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...
  • Page 38 DTR-7.3 3 7 63 1515 0 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...
  • Page 39 DTR-7.3 3 7 63 1515 0 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...
  • Page 40 DTR-7.3 3 7 63 1515 0 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...
  • Page 41 DTR-7.3 3 7 63 1515 0 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...
  • Page 42 DTR-7.3 3 7 63 1515 0 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...
  • Page 43 http://www.xiaoyu163.com DTR-8.3 3 7 63 1515 0 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...
  • Page 44 DTR-7.3 3 7 63 1515 0 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)

  • Page 45: Power Supply

    DTR-7.3 3 7 63 1515 0 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...
  • Page 46 DTR-7.3 3 7 63 1515 0 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...
  • Page 47 DTR-7.3 3 7 63 1515 0 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...
  • Page 48 DTR-7.3 3 7 63 1515 0 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...
  • Page 49 DTR-7.3 3 7 63 1515 0 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 L 13942296513 NCETC-7733...
  • Page 50 DTR-7.3 3 7 63 1515 0 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 L 13942296513...
  • Page 51 DTR-7.3 3 7 63 1515 0 PRINTED CIRCUIT BOARD VIEW 11-2 P2502 P2503 P2504 P2502 P2501 P2501 R2421 R2423 R2404 R2402 R2431 R2432 R2422 R2424 R2425 R2426 R2427 R2428 Q2404 Q2401 R2401 R2403 R2406 R2408 P2503 R2410 R2412 R2405...
  • Page 52 DTR-7.3 3 7 63 1515 0 PRINTED CIRCUIT BOARD VIEW 11-1 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...

  • Page 53: Exploded View Parts List

    DTR-7.3 3 7 63 1515 0 Note: EXPLODED VIEW-PARTS LIST <D>: 120V model only <A>: Australian model only REF. NO. PART NO. DESCRIPTION REF. NO. PART NO. DESCRIPTION 1A956595-1R NAETC-7695-1R, Surround ch. Speaker 1A956549-1G NAETC-7749-1G, Headphone terminal PC terminal PC board ass'y <D>...
  • Page 54 DTR-7.3 3 7 63 1515 0 Note: <D>: 120V model only EXPLODED VIEW-PARTS LIST <A>: Australian model only REF. NO. PART NO. DESCRIPTION REF. NO. PART NO. DESCRIPTION 27111304 Front bracket 27150485 Shield plate 27141787 Retainer HP 29362609 Label, power transformer...

  • Page 55: Adjustment And Confirmation Procedures

    DTR-7.3 3 7 63 1515 0 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 56 DTR-7.3 3 7 63 1515 0 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.
  • Page 57 DTR-7.3 3 7 63 1515 0 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 58 DTR-7.3 3 7 63 1515 0 PACKING VIEW VIEW-PARTS LIST REF. NO. PART NO. DESCRIPTION 29092063-1 29100035-1 720*1020, Polybag 29110149 Tape, cellophane 29110148 PP tape 29053953-1 Carton box 29363218-1 Label UPC 29100097-1A 350*250, Polybag 29343422 Instruction manual 29343423 Instruction manual, digits...
  • Page 59 DTR-7.3 3 7 63 1515 0 PRINTED CIRCUIT BOARD-PART LIST 1 Note: <D>: 120V model only <A>: Australian model only DSP circuit PC board (NADG-7687-1N) CIRCUIT NO. PART NO. DESCRIPTION CIRCUIT NO. PART NO. DESCRIPTION Capacitors C100~C103 356744709R2 47uF,16V, Elect., chip...
  • Page 60 DTR-7.3 3 7 63 1515 0 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 Diodes Relay D5000~D5002 224470562 MTZJ5.6B RL901 25065584 or NRL-1P10A-DC12-140 or...
  • Page 61 DTR-7.3 3 7 63 1515 0 PRINTED CIRCUIT BOARD-PART LIST 3 Note: <D>: 120V model only <A>: Australian model only F/C ch.speaker terminal PC board (NAETC-7694-1R/1T) CIRCUIT NO. PART NO. DESCRIPTION Transistors CIRCUIT NO. PART NO. DESCRIPTION Diodes Q5606...
  • Page 62 DTR-7.3 3 7 63 1515 0 PRINTED CIRCUIT BOARD-PART LIST 4 Note: <D>: 120V model only <A>: Australian model only CIRCUIT NO. PART NO. DESCRIPTION CIRCUIT NO. PART NO. DESCRIPTION Transistors Sockets Q6033~Q6036 2203434 or KTD2061-Y or P5003 2009990666UL...
  • Page 63 DTR-7.3 3 7 63 1515 0 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 Resistors Fuses R5133~R5136 415478214 820ohm+/-5%,1/4W,NF carbon F9501,F9502 252160 or 2.5A-UL/T-237 or...
  • Page 64 DTR-7.3 3 7 63 1515 0 PRINTED CIRCUIT BOARD-PART LIST 6 Note: <D>: 120V model only <A>: Australian model only CIRCUIT NO. PART NO. DESCRIPTION CIRCUIT NO. PART NO. DESCRIPTION Capacitors Capacitors C3862,C3863 374721224 1200pF+/-5%,50V,Plastic C3120,C3121 354742219 or 220uF,16V, Elect.or...
  • Page 65 DTR-7.3 3 7 63 1515 0 PRINTED CIRCUIT BOARD-PART LIST 7 Note: <D>: 120V model only <A>: Australian model only CIRCUIT NO. PART NO. DESCRIPTION Front opto. input PC board (NAETC-7722-1P) Plugs CIRCUIT NO. PART NO. DESCRIPTION P4010A 25055706...
  • Page 66 DTR-7.3 3 7 63 1515 0 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-7733-1M/1N) Sockets CIRCUIT NO. PART NO. DESCRIPTION P2005B 25051238 NSCT-13P1028...
  • Page 67 DTR-7.3 3 7 63 1515 0 PRINTED CIRCUIT BOARD-PART LIST 9 Note: <D>: 120V model only <A>: Australian model only CIRCUIT NO. PART NO. DESCRIPTION Volume PC board (NAETC-7748-1G/1H) Transistors CIRCUIT NO. PART NO. DESCRIPTION Q7202 2216230R2 or KRA103S or...

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