Integra DTR-7.2 Service Manual
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Integra DTR-7.2 Service Manual

Integra DTR-7.2 Service Manual

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QQ
3 7 63 1515 0
Standby/On
Standby
Power
On
O f f
U
psampling
Phones
2
(
Zone
GRN
Rec (
RED
Audio
Selector
TE
L 13942296513
www
.
http://www.xiaoyu163.com
SERVICE MANUAL
SERVICE MANUAL
AV Amplifier
DTR-7.2
Display
Dimmer
Direct
Stereo
Surround
THX
DSP
)
)
DVD
Video 1
Video 2
Video 3
Video 4
Video 5
VCR 1
VCR 2
MDD
120V AC, 60Hz
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
x
ao
y
PARTS WHOSE PART NUMBERS APPEAR AS SHOWN
IN THIS MANUAL.
i
MAKE LEAKAGE-CURRENT OR RESISTANCE
MEASUREMENTS TO DETERMINE THAT EXPOSED
PARTS ARE ACCEPTABLY INSULATED FROM THE
SUPPLY CIRCUIT BEFORE RETURNING THE
http://www.xiaoyu163.com
APPLIANCE TO THE CUSTOMER.
2 9
8
Rec Out
Zone 2
Of f
Se tup
Tun ing
Enter
Return
Preset
FM Mode
Memory
A-FO RM Listening Mode Memory
Clear
Tape
FM
AM
Phono
CD
Q Q
3
6 7
1 3
Digital
ON THE
u163
.
9 4
2 8
Master Volume
Video 5 / Video Cam Input
1 5
0 5
8
2 9
9 4
S Video
Video
L
Audio
R
m
co
DTR-7.2
9 9
Ref. No.3715
Oct, 2001
2 8
9 9

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Summary of Contents for Integra DTR-7.2

  • Page 1 DTR-7.2 3 7 63 1515 0 Ref. No.3715 Oct, 2001 SERVICE MANUAL SERVICE MANUAL AV Amplifier DTR-7.2 Display Dimmer Rec Out Zone 2 Of f Standby/On Master Volume Se tup Tun ing Enter Standby Power Return Preset O f f...
  • Page 2 DTR-7.2 http://www.xiaoyu163.com 3 7 63 1515 0 ADJUSTMENT AND CONFIRMATION PROCEDURES Idling current adjustment Before Idling adjustment, turn the trimming resistors R6040,R6041,R6042,R6043,R6044 and R9046 to counter clockwise. Connect the DC voltmeter to sockets P6080,P6081,P6082,P6083,P6084 and 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 3 DTR-7.2 http://www.xiaoyu163.com ADJUSTMENT AND CONFIRMATION PROCEDURES 3 7 63 1515 0 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 4 DTR-7.2 http://www.xiaoyu163.com 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-1" on the FL tube is displayed, press CD button to set the unit to the test mode of FL tube.
  • Page 5 DTR-7.2 http://www.xiaoyu163.com 3 7 6 3 1 5 1 5 0 SCHEMATIC DIAGRAM 7 Power supply, Fan control & Speaker terminal sections N A P S - 7 2 3 3 C 9 2 2 N A E T C - 7 2 3 6...
  • Page 6 DTR-7.2 3 7 63 1515 0 SCHEMATIC DIAGRAM 1-1 DISPLAY SECTION TO NAAR-7267 (SCH-9-1) FROM M-BOARD P7201A NADIS-7330 12.0 C7501 C7518 C7519 474Z 223Z 223Z R7501 220 R7502 474Z NAETC-7332 C7502 P7481 474Z C7509 HEADPHONES D7501 UDZ8.2B D7502 C7510 +5.6S...
  • Page 7 DTR-7.2 3 7 6 3 1 5 1 5 0 SCHEMATIC DIAGRAM 10 A-bus section N A E T C - 7 2 6 5 N J M 4 5 6 5 M - D C 1 5 0 4 2 .
  • Page 8 DTR-7.2 3 7 6 3 1 5 1 5 0 SCHEMATIC DIAGRAM 9-2 Componet video, & RS-232C sections N A V D - 7 2 7 0 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 9 DTR-7.2 3 7 6 3 1 5 1 5 0 SCHEMATIC DIAGRAM 9-2 Componet video, & RS-232C sections N A V D - 7 2 7 0 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 10 DTR-7.2 3 7 63 1515 0 SCHEMATIC DIAGRAM 9-1 Mother section N A A R - 7 2 6 7 T O N A P S - 7 2 5 2 ( S C H - 7 - 2 )
  • Page 11 DTR-7.2 3 7 63 1515 0 SCHEMATIC DIAGRAM 8-2 Video section N A V D - 7 2 6 9 R 2 4 0 3 7 5 Q 2 4 0 4 Q 2 4 0 1 - Q 2 4 1 4 L S 1 Z 2 * <...
  • Page 12 DTR-7.2 3 7 63 1515 0 SCHEMATIC DIAGRAM 8-1 Video section N A V D - 7 2 6 8 2 S C 2 7 1 2 G R T K 1 5 4 2 0 M Q 2 1 0 3...
  • Page 13 DTR-7.2 3 7 63 1515 0 SCHEMATIC DIAGRAM 7-2 Power supply section N A P S - 7 2 3 3 2 2 0 / 3 5 C 9 2 1 R 9 2 6 4 . 7 K...
  • Page 14 DTR-7.2 3 7 63 1515 0 SCHEMATIC DIAGRAM 7-1 Power supply, Fan control & Speaker terminal sections N A E T C - 7 2 3 6 N A E T C - 7 2 3 7 P 6 8 0 0...
  • Page 15 DTR-7.2 3 7 63 1515 0 SCHEMATIC DIAGRAM 6-2 Power amp.section R 6 2 3 0 R 6 2 7 0 1 2 0 R 6 0 8 0 1 . 3 V 2 . 2 5 5 . 5 V...
  • Page 16 DTR-7.2 3 7 63 1515 0 SCHEMATIC DIAGRAM 6-1 Power amp.section N A A F - 7 2 5 0 Q 6 0 3 3 1 . 2 V R 6 1 6 3 Q 6 0 0 3 5 5 .
  • Page 17 DTR-7.2 3 7 63 1515 0 SCHEMATIC DIAGRAM 5-2 Power amp.section N A A F - 7 2 3 2 R 5 3 0 0 5 6 . 2 V R 5 1 4 0 R 5 1 3 0...
  • Page 18 DTR-7.2 3 7 63 1515 0 SCHEMATIC DIAGRAM 5-1 Power amp.section N A A F - 7 2 5 1 R 5 3 0 3 5 6 . 2 V R 5 1 4 3 R 5 1 3 3...
  • Page 19 DTR-7.2 3 7 63 1515 0 SCHEMATIC DIAGRAM 4-2 Preamplifier section N A A F - 7 2 6 2 C 4 8 0 2 C 4 8 0 0 C 4 4 0 0 R 4 4 1 0 2 .
  • Page 20 DTR-7.2 3 7 63 1515 0 SCHEMATIC DIAGRAM 4-1 Preamplifier section C 4 2 0 0 1 0 / 5 0 P 3 6 0 0 C 4 5 2 2 R 3 6 0 0 C 3 6 1 0...
  • Page 21 DTR-7.2 3 7 63 1515 0 SCHEMATIC DIAGRAM 3-2 Audio I/O section P 1 0 1 0 A T O T U N E R P A C K N A A F - 7 2 6 3 C 1 0 0 6 3 .
  • Page 22 DTR-7.2 3 7 63 1515 0 SCHEMATIC DIAGRAM 3-1 Audio I/O section P 3 2 2 0 A ( S C H - 1 - 2 ) V I D E O 5 N A A F - 7 2 6 4...

  • Page 23: Schematic Diagram

    DTR-7.2 3 7 6 3 1 5 1 5 0 SCHEMATIC DIAGRAM 2-4 DSP AND MICROPROCESSOR SECTIONS O R M P C 4 5 7 0 G 2 4 . 7 K 1 8 0 K R D S S C K R 1 1 1 4 .

  • Page 24: Schematic Diagram

    DTR-7.2 3 7 6 3 1 5 1 5 0 SCHEMATIC DIAGRAM 2-3 DSP AND MICROPROCESSOR SECTIONS I N T R E Q 1 T O N A A R 7 2 6 7 I N T R E Q 2...

  • Page 25: Schematic Diagram

    DTR-7.2 3 7 6 3 1 5 1 5 0 SCHEMATIC DIAGRAM 2-2 DSP AND MICROPROCESSOR SECTIONS 1 0 4 Z 1 0 4 Z 3 3 0 3 3 0 C 7 0 6 C 7 5 6...

  • Page 26: Http://Www.xiaoyu163.Com

    DTR-7.2 3 7 6 3 1 5 1 5 0 SCHEMATIC DIAGRAM 2-1 DSP AND MICROPROCESSOR SECTIONS NADG-7226 1 0 0 / 6 . 3 1 0 0 / 6 . 3 C 7 3 1 C 7 8 1...

  • Page 27: Schematic Diagram

    DTR-7.2 3 7 63 1515 0 SCHEMATIC DIAGRAM 1-2 DISPLAY SECTION Q7501 16-BT-96GNK Q7503 KTC3875-GR 2SC2712-GR M66005-0001FP Q7502 R7503 100K C7507 104Z C7508 101J C7513 101J C7505 104Z C7503 100/6.3 L 13942296513 Q7538 KTC3875-GR OR 2SC2712-GR 12.0 Q7521-7527,Q7529-Q7534,Q7536-7539 KRC102S OR RN1402...

  • Page 28: Http://Www.xiaoyu163.Com

    DTR-7.2 CAUTION: Replacement for transistor of mark *, if necessary 3 7 63 1515 0 PRINTED CIRCUIT BOARD-PARTS LIST 1 must be made from the same beta group (H ) as the original type. CIRCUIT NO. PART NO. DESCRIPTION...

  • Page 29: Http://Www.xiaoyu163.Com

    DTR-7.2 3 7 63 1515 0 PRINTED CIRCUIT BOARD-PARTS LIST 2 CIRCUIT NO. PART NO. DESCRIPTION CIRCUIT NO. PART NO. DESCRIPTION Terminals Fuse holders P5100,P5101 25060302 NTM-1P233(M1969) F6901A,F6901B 25052133 NSCT-1P2031 Sockets F6902A,F6902B 25052133 NSCT-1P2031 P6000A-P6002A 25052287 NSCT-4P2184 Socket P6010A...

  • Page 30: Http://Www.xiaoyu163.Com

    DTR-7.2 3 7 63 1515 0 PRINTED CIRCUIT BOARD-PARTS LIST 3 FAN DRIVE CIRCUIT PC BOARD (NAETC-7238-1T) POWER AMPLIFIER DRIVER PC BOARD (NAAF-7250-2C) CIRCUIT NO. PART NO. DESCRIPTION CIRCUIT NO. PART NO. DESCRIPTION Transistors Transistors Q5601 2212445 2SK365-GR Q6000-Q6006...

  • Page 31: Http://Www.xiaoyu163.Com

    DTR-7.2 3 7 63 1515 0 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 Q5053,Q5054 2215844, * KTA1024-Y, R6093,R6094 453530224 2.2ohm+/-5%,1/2W,Metal Q5056 2211353, * 2SA949-O, R6096 453530224 2.2ohm+/-5%,1/2W,Metal...
  • Page 32 DTR-7.2 3 7 63 1515 0 PRINTED CIRCUIT BOARD-PARTS LIST 5 POWER SUPPLY CIRCUIT PC BOARD (NAPS-7252-2C) PREAMPLIFIER CIRCUIT PC BOARD (NAAF-7262-1Q) CIRCUIT NO. PART NO. DESCRIPTION CIRCUIT NO. PART NO. DESCRIPTION Q9401 222780155JRC NJM78M15FA Q4000,Q4420 22241383R2 or NJM4565M-D...
  • Page 33 DTR-7.2 3 7 63 1515 0 PRINTED CIRCUIT BOARD-PARTS LIST 6 AUDIO TERMINAL PC BOARDAAF-7263-1Q) CIRCUIT NO. PART NO. DESCRIPTION CIRCUIT NO. PART NO. DESCRIPTION Diodes D1500-D1503 223234R2 or 1SS352 or Q1001 222780125 78M12HF 223269R2 1SS355 D1530,D1531 22380260, RL1N4003,...
  • Page 34 DTR-7.2 3 7 63 1515 0 PRINTED CIRCUIT BOARD-PARTS LIST 7 COMPOSITE VIDEO CIRCUIT PC BOARD (NAVD-7268-1Q) S VIDEO CIRCUIT PC BOARD (NAVD-7269-1Q) CIRCUIT NO. PART NO. DESCRIPTION CIRCUIT NO. PART NO. DESCRIPTION Q2001 22241037 LC74761-9189 Q2501,Q2511 222740515R2 74HC4051AF...
  • Page 35 DTR-7.2 3 7 63 1515 0 PRINTED CIRCUIT BOARD-PARTS LIST 8 RI TERMINAL PC BOARD (NAETC-7272-1Q) CIRCUIT NO. PART NO. DESCRIPTION CIRCUIT NO. PART NO. DESCRIPTION Coils Diodes L7201 231237M022R2 NCH-1471 D201 223234R2 or 1SS352 or R7201,R7202 230958R1 BK1608LM182-T...
  • Page 36 DTR-7.2 3 7 63 1515 0 EXPLODED VIEW Chassis section 1 F6901 F6902 T901 E821 L 13942296513 35 36 REF. NO. PART NO. DESCRIPTION 27100408 Chassis 27130870 Bracket, power transformer 27190965 Holder 27190693A KGLS-6RF,Holder 27190266 KGLS-12RF,Holder 830440089 4TTC+8C(BC),Self-tapping screw...
  • Page 37 DTR-7.2 3 7 63 1515 0 EXPLODED VIEW Chassis section 2 P7701 Q6062 F9501 F9503 Q6066 F9504 Q6056 F6502 Q6050 Q6063 NOTE: THE COMPONENTS IDENTIFIED BY MARK ! Q6053 ARE CRITICAL FOR RISK OF FIRE AND ELECTRIC SHOCK. REPLACE ONLY WITH PART NUMBER SPECIFIED.
  • Page 38 DTR-7.2 3 7 63 1515 0 EXPLODED VIEW Front panel section P7201 REF. NO. PART NO. DESCRIPTION 27111251 Front bracket 27141787 Retainer HP 838430088 3TTB+8B(BC),Self-tapping screw L 13942296513 838130088 3TTB+8B,Self-tapping screw 28325756 Knob, standby 27150472 Shield plate FFC 28191948...
  • Page 39 DTR-7.2 3 7 63 1515 0 EXPLODED VIEW Rear panel section P1010 F901 NOTE: THE COMPONENTS IDENTIFIED BY MARK ! ARE CRITICAL FOR RISK OF FIRE AND ELECTRIC SHOCK. REPLACE ONLY WITH PART NUMBER SPECIFIED. L 13942296513 REF. NO. PART NO.
  • Page 40 DTR-7.2 3 7 63 1515 0 PACKING PROCEDURES Bottom Accessary bag P901 L 13942296513 REF. NO. PART NO. DESCRIPTION 29092002 29100153 1020x720,Polybag 29110149 Tape, cellophane 29110148 Tape PP 29053790 Carton S 29053821A Carton box 29362964A Label UPC 29365089 Warranty card...

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