Harman Kardon AVR300 Service Manual
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Harman Kardon AVR300 Service Manual

A/v dolby digital receiver
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See also: Owner's Manual
harman/kardon
A/V DOLBY DIGITAL RECEIVER

SERVICE MANUAL

Specifications...................................2
ESD WARNING.................................... .4
Leakage TestING................................5
CONTROLS AND FUNCTIONS............... .6
Service Procedure..........................9
ALIGNMENT PROCEDURE................... .9
IDLE CURRENT/DC OFFSET..................10
ALIGNMENT/TEST POINTS................... 11
Circuit Description....................... 13
Block Diagram........................... ...16
BULLETIN HK2000-05........................ ...17
AVR300

CONTENTS

BULLETIN HK2000-02 Rev1....................18
Disassembly Procedure.................21
UNIT EXPLODED VIEW.........................22
MECHANICAL PARTS LIST....................23
PCB DRAWINGS.................................25
Electrical Parts List.....................30
INTEGRATED CIRCUIT DRAWINGS........52
SCHEMATICS......................................80
SEMICONDUCTOR PINOUTS................89
Wiring Diagram...............................90
PACKAGE...........................................91
harman/kardon, Inc.
250 Crossways Park Dr.
Woodbury, New York 11797
Rev0 – 6/2002

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Summary of Contents for Harman Kardon AVR300

  • Page 1: Service Manual

    AVR300 A/V DOLBY DIGITAL RECEIVER SERVICE MANUAL CONTENTS SPECIFICATIONS…………………..…….…..2 BULLETIN HK2000-02 Rev1…..………..….18 ESD WARNING…………………..….……… .4 DISASSEMBLY PROCEDURE…..……...…21 LEAKAGE TESTING………………...….…..5 UNIT EXPLODED VIEW………………..…..22 CONTROLS AND FUNCTIONS….…….…. .6 MECHANICAL PARTS LIST…………..……23 SERVICE PROCEDURE……………..….…..9 PCB DRAWINGS……………………………25 ALIGNMENT PROCEDURE…………….… .9 ELECTRICAL PARTS LIST……………..….30 IDLE CURRENT/DC OFFSET..…………….10...
  • Page 4 Some semiconductor (solid state) devices can be damaged easily by static electricity. Such components commonly are called Electrostatically Sensitive (ES) Devices. Examples of typical ES devices are integrated circuits and some field effect transistors and semiconductor "chip" components. The following techniques should be used to help reduce the incidence of component damage caused by static electricity. 1.
  • Page 5 Before returning the unit to the user, perform the following safety checks : 1. lnspect all lead dress to make certain that leads are not pinched or that hardware is not lodged between the chassis and other metal parts in the unit. 2.
  • Page 6 )84!...
  • Page 9 4. FM STEREO Separation Adjustment Input Signal Source Signal Source Signal Output Level and Reception Adjustment Adjustment step Connection Frequency Modulation Frequency Point Value 1. All Clear This service program can clear all memorized operations and functions. same specification as FM STEREO Output level Minimum...
  • Page 10 7. AM auto stop Adjustment 9. Main Amp DC OFFSET VOLTAGE Adjustment Signal Reception Input Signal Source Source Signal Output Level and Adjustment Adjustment step (1) SET CONDITION Frequency Frequency Connection Modulation Point Value 1) SEMI VOLUME POSITION at MAIN/SURROUND AMP Board; CENTER 999kHz "TUNED"...
  • Page 17 Subject: Volume Level Changes On early versions of the AVR300 or AVR500 the volume level may change by itself, or when the volume knob is tapped. This may happen on an occasional random basis and depends on where the volume control knob is positioned after a volume adjustment.
  • Page 18 Subject: Random Noise, Erratic Output in DTS Mode In the event you receive an AVR300 or AVR500 receiver with the complaint “there is distortion, random noise or gaps in the program material when in the DTS mode”, perform the following procedure: REMOVAL AND MODIFICATION OF THE DSP BOARD 1) Remove the top cover, (14) Black Phillips screws.
  • Page 19 Models: AVR300, AVR500 Subject: Random Noise, Erratic Output in DTS Mode 9) Ground Reinforcement: Using an insulated 16AWG wire, Connect Negative sides of the following capacitors on the bottom side of the PCB as shown below. Negative side of each cap will have a white mark on the component side of the PCB.
  • Page 20 Models: AVR300, AVR500 Subject: Volume Level Changes Model Serial Number Serial Number 120V 230V RDS STATUS ACTION TH0005-01000 AVR300 TH0001-01000 Volume level changes by Change VR901 TH0005-01001 itself or when volume TH0001-08402 Rotary encoder knob is tapped TH0006-01000 AVR500 TH0002-01000...
  • Page 21 DISASSEMBLY PROCEDURE DISASSEMBLY PROCEDURE 1. Removingthe top cover , and 4. Removingthe main PCBblock, and Removescrews Removescrews 2. Removingthe front panel, and 5. Removingthe power PCBblock, and Removescrews Remove 3. Removingthe rear panel, and 6. Removingthe sub PCBblock, and Removescrews Removescrews MAIN AMP PCB BLOCK MAIN AMP PCB BLOCK...
  • Page 30 ELECTRICAL PARTS LIST(300Series) DSP P.C. BOARD REF NO. PART NO. DESCRIPTION REF NO. PART NO. DESCRIPTION J1320035205X DSP P.C. BOARD BEADs L 704 J2631200010X HC3550 9.4ohm AXIAL J1320035105X DSP P.C. BOARD L 705 J2631200010X HC3550 9.4ohm AXIAL L 706 J2631200010X HC3550 9.4ohm AXIAL INTEGRATED CIRCUITs IC 1 J2142930002X 74VHCT04SJX...
  • Page 31 REF NO. PART NO. DESCRIPTION REF NO. PART NO. DESCRIPTION R 705 J3024103120X 1/10W CHIP 10KW-J R 787 J3024561120X 1/10W CHIP 560W-J R 706 J3024103120X 1/10W CHIP 10KW-J R 788 J3024103120X 1/10W CHIP 10KW-J R 707 J3024473120X 1/10W CHIP 47KW-J R 789 J3024103120X 1/10W CHIP 10KW-J...
  • Page 32 REF NO. PART NO. DESCRIPTION REF NO. PART NO. DESCRIPTION C 827 J3470147041X ELEC 47uF-M CAPACITORs C 6 J3442110041X ELEC/CHIP 10uF-K C 828 J3470147041X ELEC 47uF-M C 7 J3442110041X ELEC/CHIP 10uF-K C 832 J3470110971X ELEC 1uF-M C 834 J3470110971X ELEC 1uF-M C 3 J3471610971X ELEC 1uF-M...
  • Page 33 REF NO. PART NO. DESCRIPTION REF NO. PART NO. DESCRIPTION C 739 J3525104540X CERA/CHIP F 25V 0.1uF-Z C 737 J3640683220X MET POLY/RA 63V 0.068uF-J C 740 J3525104540X CERA/CHIP F 25V 0.1uF-Z C 743 J3525104540X CERA/CHIP F 25V 0.1uF-Z WAFERs C 745 J3525104540X CERA/CHIP F 25V 0.1uF-Z HU 1 J4423341160X 2.5mm...
  • Page 34 ELECTRIC PART LIST(300Series) Audio Input P.C. BOARD REF NO. PART NO. DESCRIPTION REF NO. PART NO. DESCRIPTION Q 137 J2021200301X KRA103M J1320035203X INPUT P.C. BOARD Q 138 J2021220101X KRC101M J1320035103X INPUT P.C. BOARD Q 139 J2021220101X KRC101M Q 140 J2021220101X KRC101M INTEGRATED CIRCUITs IC 101 J2121712002X NJU7312AM FUNC.
  • Page 35 REF NO. PART NO. DESCRIPTION REF NO. PART NO. DESCRIPTION R 145 J3024101120X 1/10W R 205 J3024222120X 1/10W CHIP 100W-J CHIP 2K2W-J R 146 J3024101120X 1/10W R 206 J3024224120X 1/10W CHIP 100W-J CHIP 220KW-J R 147 J3024224120X 1/10W R 207 J3024224120X 1/10W CHIP 220KW-J CHIP...
  • Page 36 REF NO. PART NO. DESCRIPTION REF NO. PART NO. DESCRIPTION R 273 J3024102120X 1/10W R 333 J3024183120X 1/10W CHIP 1KW-J CHIP 18KW-J R 274 J3024102120X 1/10W R 334 J3024331120X 1/10W CHIP 1KW-J CHIP 330W-J R 275 J3024102120X 1/10W R 335 J3024331120X 1/10W CHIP 1KW-J CHIP...
  • Page 37 REF NO. PART NO. DESCRIPTION REF NO. PART NO. DESCRIPTION R 401 J3024479120X 1/10W C 235 J34701470411 ELEC 47uF-M CHIP 4R7W-J R 402 J3024479120X 1/10W C 236 J34701470411 ELEC 47uF-M CHIP 4R7W-J R 403 J3024479120X 1/10W C 237 J34701470411 ELEC 47uF-M CHIP 4R7W-J...
  • Page 38 REF NO. PART NO. DESCRIPTION REF NO. PART NO. DESCRIPTION C 103 J3515121270X CERA/CHIP CH 50V 120pF-J C 252 J3525104540X CERA/CHIP 0.1uF-Z C 104 J3515121270X CERA/CHIP CH 50V 120pF-J C 253 J3525104540X CERA/CHIP 0.1uF-Z C 105 J3515121270X CERA/CHIP CH 50V 120pF-J C 254 J3525104540X CERA/CHIP 0.1uF-Z...
  • Page 39 ELECTRIC PART LIST(300Series) MAIN P.C. BOARD REF NO. PART NO. DESCRIPTION REF NO. PART NO. DESCRIPTION Q 511 J2021000101X KTA1024-Y J1320035201X MAIN P.C. BOARD Q 512 J2021020501X KTC3206-Y J1320035101X MAIN P.C. BOARD Q 513 J2002520101X KTC4370-Y Q 514 J2021020701X KTC3200-BL INTEGRATED CIRCUITs IC 481 J2112505021X KIA7815PI REGULATOR 15V...
  • Page 40 REF NO. PART NO. DESCRIPTION REF NO. PART NO. DESCRIPTION R 124 J3003224220X 1/8W 220KW-J R 564 J3003563220X 1/8W 56KW-J R 125 J3003331220X 1/8W 330W-J R 565 J3003123220X 1/8W 12KW-J R 126 J3003331220X 1/8W 330W-J R 566 J3003101220X 1/8W 100W-J R 127 J3003224220X 1/8W 220KW-J R 567 J3003103220X 1/8W...
  • Page 41 R EF N O . PA R T N O . D ESC R I PTI O N R EF N O . PA R T N O . D ESC R I PTI O N R 443 J3063151421X 1/4W FUSIBLE 150W-J R 471 J3076228421X 5W...
  • Page 42 REF NO. PART NO. DESCRIPTION REF NO. PART NO. DESCRIPTION C 411 J3513101270X CERA/DISC CH 50V 100pF-J WA 412 J4423240760X JE604-07 2.5mm C 412 J3513101270X CERA/DISC CH 50V 100pF-J WA 413 J4423240960X JE604-09 2.5mm C 497 J3523103170X CERA/DISC B 50V 0.01uF-K WA 414 J4423241160X JE604-11 2.5mm C 502 J3513680270X CERA/DISC...
  • Page 43 ELECTRIC PART LIST(300Series) Rear & Sub-Power, Video P.C. BOARD REF NO. PART NO. DESCRIPTION REF NO. PART NO. DESCRIPTION D 684 J2221010100X 1SS133 J13200352021 REAR P.C. BOARD J13200351021 REAR P.C. BOARD D 685 J2221010100X 1SS133 D 691 J2202366007X BU6-04F BRIDGE TRANSISTORs Q 601 J2021020701X KTC3200-BL RESISTORs...
  • Page 44 REF NO. PART NO. DESCRIPTION REF NO. PART NO. DESCRIPTION R 624 J3063561421X 1/4W FUSIBLE 560W-J C 696 J3470110031X ELEC 10uF-M R 625 J3063561421X 1/4W FUSIBLE 560W-J C 601 J3470110041X ELEC 10uF-M R 626 J3063561421X 1/4W FUSIBLE 560W-J C 602 J3470110041X ELEC 10uF-M R 627 J3063561421X 1/4W FUSIBLE...
  • Page 45 REF NO. PART NO. DESCRIPTION REF NO. PART NO. DESCRIPTION DIODEs WAFERs D 981 J2221216000X 1N4004 1A 400V RECTIFIED WA 981 J4420060261X JE202-1T-02(3-2)W 7.92mm D 982 J2221216000X 1N4004 1A 400V RECTIFIED WA 983 J4420060200X 35328-0210 7.92mm D 983 J2221216000X 1N4004 1A 400V RECTIFIED WA 985 J4420060262X JE202A-1T-02R 7.92mm...
  • Page 46 REF NO. PART NO. DESCRIPTION REF NO. PART NO. DESCRIPTION L 355 J2631200010X HC3550 9.4ohm AXIAL C 381 J3513270270X CERA/DISC CH 50V 27pF-J C 382 J3513240270X CERA/DISC CH 50V 24pF-J C 362 J3524104540X CERA/AX F 25V 0.1uF-Z RESISTORs R 351 J3003750220X 1/8W CARBON 75W-J C 366 J3524104540X CERA/AX...
  • Page 47 REF NO. PART NO. DESCRIPTION REF NO. PART NO. DESCRIPTION R 8 J3003222220X 1/8W CARBON 2K2W-J R 382 J3003750220X 1/8W CARBON 75W-J R 383 J3003750220X 1/8W CARBON 75W-J R 384 J3003680220X 1/8W CARBON 68W-J R 385 J3003680220X 1/8W CARBON 68W-J R 386 J3003750220X 1/8W CARBON 75W-J...
  • Page 48 ELECTRIC PART LIST(300Series) TUNER & FRONT P.C. BOARD REF NO. PART NO. DESCRIPTION REF NO. PART NO. DESCRIPTION R 892 J3003102220X 1/8W CARBON 1KW-J IB J13200352041 TUNER P.C. BOARD R 832 J3003220420X 1/4W CARBON J13200351041 TUNER P.C. BOARD 22W-J R 836 J3003470420X 1/4W CARBON 47W-J R 851 J3003331420X 1/4W...
  • Page 49 REF NO. PART NO. DESCRIPTION REF NO. PART NO. DESCRIPTION R 861 J3024103120X 1/10W CHIP 10KW-J C 830 J3525223170X CERA/CHIP B 50V 0.022uF-K R 862 J3024103120X 1/10W C 844 J3515300270X CERA/CHIP CHIP 10KW-J CH 50V 30pF-J IB R 864 J3024221120X 1/10W C 845 J3515300270X CERA/CHIP CHIP 220W-J...
  • Page 50 REF NO. PART NO. DESCRIPTION REF NO. PART NO. DESCRIPTION Q 934 J2021220401X KRC104M R 948 J3003103220X 1/8W 10KW-J Q 935 J2021200401X KRA104M R 949 J3003470220X 1/8W 47W-J Q 936 J2021200201X KRA102M R 950 J3003470220X 1/8W 47W-J R 955 J3003473220X 1/8W 47KW-J R 959 J3003473220X 1/8W 47KW-J...
  • Page 51 REF NO. PART NO. DESCRIPTION REF NO. PART NO. DESCRIPTION C 901 J3514220270X CERA/AX 22pF-J SW 904 J46500500002 SKHV10910A 2P TACT SW. C 902 J3514220270X CERA/AX SW 905 J46500500002 SKHV10910A 2P TACT SW. 22pF-J C 903 J3524104540X CERA/AX 0.1uF-Z SW 906 J46500500002 SKHV10910A 2P TACT SW.
  • Page 72 AVR300...
  • Page 85 AVR300 SCHEMATIC...

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