Harman Kardon AVR1550 Service Manual
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Harman Kardon AVR1550 Service Manual

Avr1550 audio/videoreceiver
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Table of Contents

See also: Owner's Manual
AVR 1550
Audio/Video Receiver
SERVICE MANUAL
®
Power for the Digital Revolution
™

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Balaji
July 13, 2025

Power soft switch ON after some seconds the power gone off. The displays also on and off

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Summary of Contents for Harman Kardon AVR1550

  • Page 1 AVR 1550 Audio/Video Receiver SERVICE MANUAL ® Power for the Digital Revolution ™...

  • Page 2: Technical Specifications

    Height measurement includes feet and chassis. All features and specifications are subject to change without notice. Harman Kardon is a registered trademark, and Power for the digital revolution is a trademark, of Harman International Industries, Inc. *Manufactured under license from Dolby Laboratories.

  • Page 3: Troubleshooting Guide

    Power switch 2 is red due to possible short and speaker ends • Amplifier is in protection mode • Contact your local Harman Kardon service depot due to internal problems No sound from surround or • Incorrect surround mode •...
  • Page 5 CONN-PHJAC 6.35 ST HORZ EST-J6313 55124350 AC PUN BRACKET HEADPHONE 55178000 SWIPUSH POWER SWITCH 5.0A 250.0V 100MI0OHM 1T 2P 55498980 AC MLD BUTTON INDICATOR STAND-BY AVR1550 -- 55177810 AC DEC BUTTON POWER HIPS 55498880 AC DEC BUTTON STANDBY AVR1550 55510880...
  • Page 6 55127300 15 WASHER-SPR 3.1MM 6.2MM 0.8MM Y 53 0 I4 55168690 AC SPRING WASHER RT2250(PAV5005) 55131730 WASHER 4.8MM 12MM 1.0MM -- 53 0 I5 55498720 AC PRI LABEL BARCODE AVR1550 55174780 AC PRI LABEL DATE 55373490 AC PRI LABEL MADE IN PRC 20932870...
  • Page 7 AVR 1550 AMP Page 1/6 Tocom# SName C602 20936650 CC 100P0F +10% -10% 50.0V Y5P C603 55126070 CC 680P0F +10% -10% 50.0V 2B4 C607 14039240 CC 15P0F +5% -5% 50.0V SL C616 20936650 CC 100P0F +10% -10% 50.0V Y5P C617 55126070 CC 680P0F +10% -10% 50.0V 2B4 C621...
  • Page 8 AVR 1550 AMP Page 2/6 Tocom# SName R637 80436990 RCF 910R0 OHM +5% 250MI0W R642 20469490 RCF 6K8 OHM +5% 250MI0W R643 11059640 RCF 1K0 OHM +5% 250MI0W R644 30939490 RCF 33K0 OHM +5% 250MI0W R645 30939370 RCF 15R0 OHM +5% 250MI0W R646 30939370 RCF 15R0 OHM +5% 250MI0W...
  • Page 9 AVR 1550 AMP Page 3/6 Tocom# SName R706 60441580 RCF 22K0 OHM +5% 250MI0W R707 50882980 RCF 820R0 OHM +5% 250MI0W R708 80436990 RCF 910R0 OHM +5% 250MI0W R709 80437000 RCF 1K2 OHM +5% 250MI0W R710 11059590 RCF 82R0 OHM +5% 250MI0W R711 11059590 RCF 82R0 OHM +5% 250MI0W...
  • Page 10 AVR 1550 AMP Page 4/6 Tocom# SName R774 30939480 RCF 10K0 OHM +5% 250MI0W R775 20469510 RCF 43K0 OHM +5% 250MI0W R776 30939490 RCF 33K0 OHM +5% 250MI0W R777 20469460 RCF 2K2 OHM +5% 250MI0W R778 60441560 RCF 560R0 OHM +5% 250MI0W R779 60441560 RCF 560R0 OHM +5% 250MI0W...
  • Page 11 AVR 1550 AMP Page 5/6 Tocom# SName C665 13055500 CE 10U0F +20% 50.0V 85C C668 20267420 CE 1U0F +20% 50.0V 105C Q601 55133230 TR-SLPLF KTA1268 GR P 100MI0A -120V Q602 55133230 TR-SLPLF KTA1268 GR P 100MI0A -120V Q603 55133230 TR-SLPLF KTA1268 GR P 100MI0A -120V Q604 20508210 TR-SLPLF KTA1266 Y P 150MI0A...
  • Page 12 AVR 1550 AMP page 6/6 Tocom# SName C637 11054760 CE 100U0F +20% 63.0V 85C C649 11054760 CE 100U0F +20% 63.0V 85C C650 11054760 CE 100U0F +20% 63.0V 85C C662 11054760 CE 100U0F +20% 63.0V 85C C663 11054760 CE 100U0F +20% 63.0V 85C CN503 55184160 WIRECONASY UNIQUE 5P 680MM UL1007 PVC DISCRETE 22...
  • Page 13 AVR1550 DSP Page 1/6 Tocom# SName BD10 80440510 RMGCFMIN 0 OHM +0% 100MI0W BD14 55126690 FBEAD SURFACE MT 2500OHM FCM2012H-252T02 BD16 80440510 RMGCFMIN 0 OHM +0% 100MI0W BD17 20471950 RMGCFMIN 1K0 OHM +5% 100MI0W BD18 20471950 RMGCFMIN 1K0 OHM +5% 100MI0W...
  • Page 14 AVR1550 DSP Page 2/6 Tocom# SName 40435540 CCCFMIN 5N6F +10% -10% 50.0V X7R 11059320 CCCFMIN 1N0F +10% -10% 50.0V X7R 11059340 CCCFMIN 10N0F +10% -10% 50.0V X7R 11059320 CCCFMIN 1N0F +10% -10% 50.0V X7R 11059320 CCCFMIN 1N0F +10% -10% 50.0V X7R 11059340 CCCFMIN 10N0F +10% -10% 50.0V X7R...
  • Page 15 AVR1550 DSP Page 3/6 Tocom# SName 11066440 RMGCFMIN 3K3 OHM +5% 100MI0W 30944310 RMGCFMIN 4K7 OHM +5% 100MI0W R110 20471970 RMGCFMIN 2K4 OHM +5% 100MI0W R111 20471950 RMGCFMIN 1K0 OHM +5% 100MI0W R113 50886610 RMGCFMIN 10K0 OHM +5% 100MI0W R114...
  • Page 16 AVR1550 DSP Page 4/6 Tocom# SName 70434220 RMGCFMIN 820R0 OHM +5% 100MI0W 50886630 RMGCFMIN 100K0 OHM +5% 100MI0W 90574400 RMGCFMIN 470R0 OHM +5% 100MI0W 20471970 RMGCFMIN 2K4 OHM +5% 100MI0W 11066480 RMGCFMIN 47K0 OHM +5% 100MI0W 20471990 RMGCFMIN 12K0 OHM +5% 100MI0W...
  • Page 17 AVR1550 DSP Page 5/6 Tocom# SName 20268850 CE 2U2F +20% 50.0V 85C C211 15001920 CE 100U0F +20% 16.0V 85C C212 15001920 CE 100U0F +20% 16.0V 85C 20267830 CE 47U0F +20% 16.0V 85C 20267830 CE 47U0F +20% 16.0V 85C 15002130 CE 10U0F +20% 16.0V 85C 15002130 CE 10U0F +20% 16.0V 85C...
  • Page 18 AVR1550 DSP Page 6/6 Tocom# SName 20468970 CCCFMIN 330P0F +5% -5% 50.0V NP0 11059440 CCCFMIN 10P0F +0P25F -0P25F 50.0V NP0 11059440 CCCFMIN 10P0F +0P25F -0P25F 50.0V NP0 11059440 CCCFMIN 10P0F +0P25F -0P25F 50.0V NP0 11059440 CCCFMIN 10P0F +0P25F -0P25F 50.0V NP0 11059440 CCCFMIN 10P0F +0P25F -0P25F 50.0V NP0...
  • Page 19 AVR 1550 FRONT Page 1/4 Tocom# SName 20267830 CE 47U0F +20% 16.0V 85C C204 20269010 CE 47U0F +20% 50.0V 85C C210 20268880 CE 10U0F +20% 50.0V 85C C214 20267830 CE 47U0F +20% 16.0V 85C C215 20267830 CE 47U0F +20% 16.0V 85C C219 20269010 CE 47U0F +20% 50.0V 85C...
  • Page 20 AVR 1550 FRONT Page 2/4 Tocom# SName C244 80440510 RMGCFMIN 0 OHM +0% 100MI0W C245 20267290 CCCFMIN 100N0F +80% -20% 50.0V Y5V 20267290 CCCFMIN 100N0F +80% -20% 50.0V Y5V 20267290 CCCFMIN 100N0F +80% -20% 50.0V Y5V C401 30939240 CCCFMIN 22N0F +10% -10% 50.0V X7R C402 30939240 CCCFMIN 22N0F +10% -10% 50.0V X7R...
  • Page 21 AVR 1550 FRONT Page 3/4 Tocom# SName R216 30944310 RMGCFMIN 4K7 OHM +5% 100MI0W R217 30944310 RMGCFMIN 4K7 OHM +5% 100MI0W R218 50886610 RMGCFMIN 10K0 OHM +5% 100MI0W R219 50886630 RMGCFMIN 100K0 OHM +5% 100MI0W R220 20471950 RMGCFMIN 1K0 OHM +5% 100MI0W R221 50886610 RMGCFMIN 10K0 OHM +5% 100MI0W...
  • Page 22 AVR 1550 FRONT Page 4/4 Tocom# SName R612 11066480 RMGCFMIN 47K0 OHM +5% 100MI0W R613 70434250 RMGCFMIN 15K0 OHM +5% 100MI0W 70434200 RMGCFMIN 100R0 OHM +5% 100MI0W 20471950 RMGCFMIN 1K0 OHM +5% 100MI0W 20471950 RMGCFMIN 1K0 OHM +5% 100MI0W C216 55134340 CM 47MI0F +80% -20% 5.5V 70C CN201...
  • Page 23 AVR 1550 MAIN Page 1/11 Tocom# SName D123 20421210 D-ZENER 1N5242B 12.0V 500MI0W D400 20526990 D-ZENER 1N5235B 6.8V 500MI0W D401 20526990 D-ZENER 1N5235B 6.8V 500MI0W D402 70436540 D-SLP 1N4148 100.0V 150E-3A D403 70436540 D-SLP 1N4148 100.0V 150E-3A D404 70436540 D-SLP 1N4148 100.0V 150E-3A D405 70436540 D-SLP 1N4148 100.0V 150E-3A...
  • Page 24 AVR 1550 MAIN Page 2/11 Tocom# SName R901 30939390 RCF 39R0 OHM +5% 250MI0W R902 30939390 RCF 39R0 OHM +5% 250MI0W R903 30939390 RCF 39R0 OHM +5% 250MI0W R904 30939390 RCF 39R0 OHM +5% 250MI0W R906 30939390 RCF 39R0 OHM +5% 250MI0W R907 30939390 RCF 39R0 OHM +5% 250MI0W...
  • Page 25 AVR 1550 MAIN Page 3/11 Tocom# SName C239 20268880 CE 10U0F +20% 50.0V 85C C240 20268880 CE 10U0F +20% 50.0V 85C C241 20268880 CE 10U0F +20% 50.0V 85C C242 20267830 CE 47U0F +20% 16.0V 85C C243 20267830 CE 47U0F +20% 16.0V 85C C317 20267830 CE 47U0F +20% 16.0V 85C...
  • Page 26 AVR 1550 MAIN Page 4/11 Tocom# SName C907 40432960 CPM 47N0F +20% 100.0V C908 11055580 CC 4N7F +10% -10% 50.0V Y5P C909 11055580 CC 4N7F +10% -10% 50.0V Y5P C910 40432960 CPM 47N0F +20% 100.0V C911 11055580 CC 4N7F +10% -10% 50.0V Y5P C912 11055580 CC 4N7F +10% -10% 50.0V Y5P...
  • Page 27 AVR 1550 MAIN Page 5/11 Tocom# SName Q957 55180600 TR-SLPLF 2SA933S P -150MI0A -50V Q959 55157120 TR-SLPLF KTC2874 A N 300MI0A 20V Q959 55179210 TR-SLPSWA KTC2874 B N Q959 55179210 TR-SLPSWA KTC2874 B N Q960 55157120 TR-SLPLF KTC2874 A N 300MI0A 20V Q960 55179210 TR-SLPSWA KTC2874 B N...
  • Page 28 AVR 1550 MAIN Page 6/11 Tocom# SName C412 11058670 CCCFMIN 100P0F +5% -5% 50.0V NP0 C414 11058670 CCCFMIN 100P0F +5% -5% 50.0V NP0 C416 11058670 CCCFMIN 100P0F +5% -5% 50.0V NP0 C419 11058670 CCCFMIN 100P0F +5% -5% 50.0V NP0 C421 11058670 CCCFMIN 100P0F +5% -5% 50.0V NP0 C423...
  • Page 29 AVR 1550 MAIN Page 7/11 Tocom# SName IC403 20976940 IC-OPERAMP BA4558F DUAL OP IC901 55192900 IC-SWITCH BA7626F SOP16 VIDEO IC902 55192900 IC-SWITCH BA7626F SOP16 VIDEO IC903 55192900 IC-SWITCH BA7626F SOP16 VIDEO IC904 20718660 IC-LOGIC BU4094BF SHIFT REGISTER CMOS J100 80440510 RMGCFMIN 0 OHM +0% 100MI0W J101 80440510...
  • Page 30 AVR 1550 MAIN Page 8/11 Tocom# SName R157 50886630 RMGCFMIN 100K0 OHM +5% 100MI0W R200 90574400 RMGCFMIN 470R0 OHM +5% 100MI0W R201 90574400 RMGCFMIN 470R0 OHM +5% 100MI0W R202 90574400 RMGCFMIN 470R0 OHM +5% 100MI0W R203 90574400 RMGCFMIN 470R0 OHM +5% 100MI0W R204 90574400 RMGCFMIN 470R0 OHM +5% 100MI0W...
  • Page 31 AVR 1550 MAIN Page 9/11 Tocom# SName R393 50886630 RMGCFMIN 100K0 OHM +5% 100MI0W R402 70434200 RMGCFMIN 100R0 OHM +5% 100MI0W R403 70434200 RMGCFMIN 100R0 OHM +5% 100MI0W R404 15268430 RMGCFMIN 1R0 OHM +5% 100MI0W R405 15268430 RMGCFMIN 1R0 OHM +5% 100MI0W R408 60444390 RMGCFMIN 3K9 OHM +5% 100MI0W...
  • Page 32 AVR 1550 MAIN Page 10/11 Tocom# SName R480 20471950 RMGCFMIN 1K0 OHM +5% 100MI0W R482 20471950 RMGCFMIN 1K0 OHM +5% 100MI0W R483 20471950 RMGCFMIN 1K0 OHM +5% 100MI0W R484 20471950 RMGCFMIN 1K0 OHM +5% 100MI0W R951 90574370 RMGCFMIN 82R0 OHM +5% 100MI0W R952 30944250 RMGCFMIN 10R0 OHM +5% 100MI0W...
  • Page 33 AVR 1550 MAIN Page 11/11 Tocom# SName D115 20415060 D-SR 1N4004 400.0V 1.0A D116 20415060 D-SR 1N4004 400.0V 1.0A D118 20415060 D-SR 1N4004 400.0V 1.0A D119 20415060 D-SR 1N4004 400.0V 1.0A D120 20415060 D-SR 1N4004 400.0V 1.0A D121 20415060 D-SR 1N4004 400.0V 1.0A D900 20525530 D-SR 1N4003 200.0V 1A...
  • Page 34 AC DEC CABINET PANEL FRONT AVR1550 55510880 AC CPL PLATE BADGE HARMAN/KARDON GOLD 55177740 AC DEC KNOB MAIN HIPS 94H 55498770 AC DEC BUTTON 8 KEY AVR1550 -- 55230130 AC DEC BUTTON 7 KEY AVR8000 HIPS 55498790 AC DEC CRYSTAL DISPLAY AVR1550 55177800...
  • Page 35 Page 1 Tocom# SName 55127490 ANTENNA WIRE ANTENNA LOOP CT01-AM 0 0 55498700 EPR RCT REMOCON AVR1550 OEM -- W/O BATTERY -- 70 5502022A BATNCALK 1.5V AAA 1.15 AH 55498710 AC CARTON AVR1550 55178610 AC CPL ENDCAP CUSHION POLY 0.024...
  • Page 36 AVR 1550 ST-BY Page 1/1 Tocom# SName D106 70436540 D-SLP 1N4148 100.0V 150E-3A D110 20475340 D-ZENER BZX55B30 30V 500MI0W D111 20454630 D-ZENER 1N5239B 9.1V 500MI0W D124 20526960 D-ZENER 1N5231B 5.1V 500MI0W D129 70436540 D-SLP 1N4148 100.0V 150E-3A R101 11059580 RCF 56R0 OHM +5% 250MI0W R102 50883000 RCF 3K3 OHM +5% 250MI0W R103...
  • Page 37 AVR1500BLOCK .sch-1 - Thu Oct 17 11:11:28 2002...
  • Page 38 avr1550wiring.sch-1 - Thu Oct 17 11:46:42 2002...
  • Page 39 AVR1500DSP-0121MP.sch-1 - Thu Oct 17 11:06:37 2002...
  • Page 40 AVR1500-main-0129MP.sch-4 - Thu Oct 17 11:08:58 2002...
  • Page 41 AVR1500-main-0129MP.sch-3 - Thu Oct 17 11:08:51 2002...
  • Page 42 AVR1500-main-0129MP.sch-2 - Thu Oct 17 11:08:43 2002...
  • Page 43 AVR1500-main-0129MP.sch-1 - Thu Oct 17 11:08:31 2002...
  • Page 44 AVR1550FRONT0513.sch-1 - Thu Oct 17 11:10:09 2002...
  • Page 45 AVR1500POWER-MP.sch-1 - Thu Oct 17 11:09:31 2002...
  • Page 46 AVR1500AMP-MP.sch-1 - Thu Oct 17 11:05:29 2002...

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