HarmanKardon-AVRxxx-avr-tt维修电路原理图.pdf

harman/kardon TECH TIPSTECH TIPS Troubleshooting tips and solutions to common service problems TIP# HKTT2004-03 Isolating audio problems in an AVR receiver Using 6/8 Direct In The following charts are used to help the tech quickly isolate audio problems in an AVR receiver. Use the following procedures to help find what is working, then to quickly locate the problem area. Equipment needed: ? 1 set of (RCA) Y adaptors. ? Function/signal generator. ? Oscilloscope. Models covered: AVR210 AVR310 AVR220 AVR320 AVR520 AVR225 AVR125 AVR525 AVR130 AVR230 AVR330 AVR430 AVR630 Procedure: 1) Do a factory reset of the receiver. (This will eliminate any common micro processor problems.) Reset List can be found near the last page or check the service website; for the latest info. 2) Print the block diagram from the service manual. 3) With no inputs or speakers attached to the AVR turn on the receiver and turn the volume all the way down. 4) Turn unit off. 5) Hook up an oscillator to the 6/8 Direct in jacks using the Y adaptors. Adjust the oscillator to about 0db (.775Volts RMS). 6) Hook up an oscilloscope to monitor the line out jacks. Or, if there are no line out (preamp out) jacks monitor the input to the power amps or the speaker outs. (AVR125, 225, 130 do not have preamp out jacks) 7) Turn the AVR on. Select 6 or 8 direct in, depending on the receiver. 8) Slowly turn the volume control up until you can easily measure the voltage at the line out jacks. ( -40 to -25db ) Harman Consumer Group 250 Crossways Park Dr. Woodbury, New York 11797 Email T RadioFans.CN Isolating audio problems in an AVR receiver Using 6/8 Direct In 9) At this point you will be able to check and assure all output levels are the same. 10) IF THE OUTPUT LEVELS ARE NOT THE SAME STOP! Go no further. At this point you will need to use the charts to see where you are losing your signal. The chart shows the analog signal flow from the input jacks to the output jacks. 11) If the output levels are the same check the power out stage at the speaker out jacks. 12) If you find the levels at the speaker out jacks are OK, your problem will be in the DSP part of the receiver. Congratulations! You have now eliminated 90% of the electronics in the AVR and confirmed that the problem is in the DSP section. Harman Consumer Group 250 Crossways Park Dr. Woodbury, New York 11797 Email T RadioFans.CN Isolating audio problems in an AVR receiver Using 6/8 Direct In AVR,210,310,510 6 CH IN IC 501 In IC 501 Out CN 408 IC 704 In IC704 Out IC705 In IC705 Out IC706 In IC 706 Out IC 705 In IC 705 Out IC 716 In IC716 Out IC 717 In IC 717 Out IC 718 In IC 718 Out CP 405 FR31 15248943 19 17313 FL57 13 27 25 21 20 2526 10 12571 SR115776579 SL9 24 222223317 C5 21 191920315 SW78 101095711 AVR220 6 CH IN IC 501 In IC 501 Out CN 408 IC 704 In IC704 Out IC705 In IC705 Out IC706 In IC 706 Out IC714 In IC714 Out IC 705 In IC 705 Out IC 716 In IC716 Out IC 717 In IC 717 Out IC 718 In IC 718 Out CP 405 FR57 152489435710 12571 FL31 13 27 25 21 20 25263119 17313 SR115776579 SL9 24 222223317 C5 21 191920315 SW78 101095711 AVR320/520 8 CH IN IC 501 In IC 501 Out CN 408 IC 704 In IC704 Out IC705 In IC705 Out IC706 In IC 706 Out IC714 In IC714 Out IC 705 In IC 705 Out IC 716 In IC716 Out IC 717 In IC 717 Out IC 718 In IC 718 Out CP 405 FR57 152489435710 12571 FL31 13 27 25 21 20 25263119 17313 SR115776579 SL9 24 222223317 C5 21 191920315 SW78 101095711 CN418 CP102 IC101 In IC101Out IC102 In ic102 oUT ic103 iN ic103 Out SBR3334 21 2357 SBL11 25 264231 AVR225/125 6 CH IN IC 30 In IC 30 Out IC 31 In IC 31 Out IC 32 In IC 32 Out IC 33 In IC 33 Out IC 34 In IC 34 Out BN12 IC 81 In IC 81 Out IC 80 In IC 80 Out BN16 In BN16 Out L ch27 25 19 205713191012 R ch24 22 22 2331357 151445 SL5476579 SR24 10931 11 C8 1843317 SW21 19 25 26575 Harman Consumer Group 250 Crossways Park Dr. Woodbury, New York 11797 Email RadioFans.CN Isolating audio problems in an AVR receiver Using 6/8 Direct In 4 1 4 1 AVR 525 In Jack N404 P6 IC5 In IC5 Out IC3 In IC3 Out IC19 In IC19 Out IC18 In IC20 In IC20 Out IC3 In IC3 Out IC18 Out IC23 In IC23 Out IC25 In IC25 Out IC24 In IC24 Out IC26 In IC26 Out P9 N806 FL111094231353111 FR3321 2221 2357 2866733 SL5524433155 SR77 29 2725 265777 CTR9957763199 SW11 11 26 2422 23571111 SBL13 138 10109311313 SBR15 15 23 2119 20671515 AVR130 6 ch in IC 23 In IC 23 Out IC 26 In IC 26 Out IC 42 In IC42 Out IC 4 In IC 44 Out IC 43 In IC 43 Out IC40 In IC40 Out IC49 In IC49 Out BN 12 BN1 L18 1721 231 R19 124214 SL24 2221 239 SR57427 C27 2521 235 SUB24423 SBL21 1921235713 SBR8 10423111 AVR230/330 6 ch in IC 23 In IC 23 Out IC 26 In IC 26 Out IC 42 In IC42 Out IC 4 In IC 44 Out IC 43 In IC 43 Out IC40 In IC40 Out IC49 In IC49 Out BN 12 BN1 L18 1721 231 R19 124214 SL24 2221 239 SR57427 C27 2521 235 SUB24423 SBL21 1921235713 SBR8 10423111 AVR630/430 8 CH In N404 IC 3 IC 3 Out IC 14 In IC 14 Out IC 12 In IC 12 Out IC 3 In IC 3 Out IC 27 In IC 27 Out IC 18 In IC 18 Out IC 20 In IC 20 Out IC 3 In IC 3 Out FL1 10 12 109316931423131 FR3 19 17 19 2057 23205721 2357267 N404 IC 5 In IC 5 Out IC19 In IC 19 Out IC 25 In IC 25 Out IC 24 In IC 24 Out IC 26 In IC 26 Out SL5244331 SR7 27 25 25 2657 CTR9577631 SW11 24 22 22 2357 SBL138 10 10931 SBR15 21 19 19 2057 Harman Consumer Group 250 Crossways Park Dr. Woodbury, New York 11797 Email Quick Guide to h/k and JBL Microprocessor resets In the rare case where the units operation or the displays seem abnormal, the cause may involve the erratic operation of the systems memory or microprocessor. NOTE: Resetting the processor will erase any configuration settings you or the customer have made for the product, e.g. speakers, output levels, surround modes, digital input assignments as well as the tuner presets. After a reset the unit will be returned to the factory presets, and any special settings for these items must be reentered. harman/kardon harman/kardon Model Instructions Comment AVR5 To reset the system, first turn the AVR5 off by pressing the Main Power Switch and then releasing it so that it extends out beyond the front panel and the word “OFF” is visible in red lettering at the top of the switch. Next, press and hold the TMon and CD Input Selector buttons on the front panel ONLY. While holding these buttons in, press the Main Power Switch in until it latches so that the button is flush with the front panel. The Information Display will briefly show the word RESET, and then return to normal operation. AVR35 To clear the AVR35s entire system memory, first turn the unit off by pressing and releasing the Master Power Switch so that it pops out from its normal recessed position. Next, press and hold the Sleep and the Dolby Pro Logic buttons while pushing the Master Power Switch in to turn the unit back on. AVR45 To correct this problem, first unplug the unit from the AC wall outlet and wait at least three minutes. After the pause, reconnect the AC power cord and check the units operation. If the system still malfunctions, a system reset may clear the problem. To clear the AVR45s entire system memory, first turn the unit off by pressing and releasing the Master Power Switch so that it pops out from its normal recessed position. Next, press and hold the AM/FM and the Dolby Pro Logic buttons while pushing the Master Power Switch in to turn the unit back on. AVR65 To correct this problem, first unplug the unit from the AC wall outlet and wait at least three minutes. After the pause, reconnect the AC power cord and check the units operation. If the system still malfunctions, a system reset may clear the problem. To clear the AVR65s entire system memory, first turn the unit off by pressing and releasing the Master Power Switch so that it pops out from its normal recessed position. Next, press and hold the AM/FM and the Dolby Pro Logic buttons while pushing the Master Power Switch in to turn the unit back on. AVR70/70II To correct this problem, first unplug the unit from the AC wall outlet and wait at least three minutes. After the pause, reconnect the AC power cord and check the units operation. If the system still malfunctions, a system reset may clear the problem. To clear the systems memory, press and hold the MEMO and CLEAR buttons at the same time for a few seconds. AVR80/80II To correct this problem, first unplug the unit from the AC wall outlet and wait at least three minutes. After the pause, reconnect the AC power cord and check the units operation. If the system still malfunctions, a system reset may clear the problem. To clear the systems memory, press and hold the MEMO and CLEAR buttons at the same time for a few seconds. AVR85 To correct this problem, first unplug the unit from the AC wall outlet and wait at least three minutes. After the pause, reconnect the AC power cord and check the units operation. If the system still malfunctions, a system reset may clear the problem. To clear the entire system memory of the unit, press and hold the MEMO and CLEAR buttons until CLEAR MEMO appears in the front panel display. Release the buttons and note that the unit will turn off and then on. AVR100 To correct this problem, first unplug the unit from the AC wall outlet and wait at least three minutes. After the pause, reconnect the AC power cord and check the units operation. If the system still malfunctions, a system reset may clear the problem. To clear the AVR 100s entire system, first turn the unit off by pressing and releasing the Main Power Switch so that it pops out from its normal recessed position. Next, press and hold the CD and Vid 2 buttons while pushing in the Main Power Switch to turn the unit back on. AVR110 To correct this problem, first unplug the unit from the AC wall outlet and wait at least three minutes. After the pause, reconnect the AC power cord and check the units operation. If the system still malfunctions, a system reset may clear the problem. To clear the AVR 110s entire system, first put the unit in Standby by pressing the System Power Control button. Next, press and hold the Tone Mode and the FM Mode Selector buttons for three seconds. The unit will turn on automatically and display the RESET message in the Main Information Display. AVR120 To correct this problem, first unplug the unit from the AC wall outlet and wait at least three minutes. After the pause, reconnect the AC power cord and check the units operation. If the system still malfunctions, a system reset may clear the problem. To clear the AVR 120s entire system, first put the unit in Standby by pressing the System Power Control button. Next, press and hold the Tone Mode and the FM Mode Selector buttons for three seconds. The unit will turn on automatically and display the RESET message in the Main Information Display AVR125 To correct this problem, first unplug the unit from the AC wall outlet and wait at least three minutes. After the pause, reconnect the AC power cord and check the units operation. If the system still malfunctions, a system “reset” may clear the problem. To clear the AVR 125s entire system, first put the unit in Standby by pressing the System Power Control Button. Next, press and hold the Tone Mode button for three seconds. The unit will turn on automatically and display the RESET message in the Main Information Display AVR130 To correct this problem, first unplug the unit from the AC wall outlet and wait at least three minutes. After the pause, reconnect the AC power cord and check the units operation. If the system still malfunctions, a system “reset” may clear the problem. To clear the AVR 130s entire system memory , first put the unit in Standby by pressing the Standby/On Switch so that the Power Indicator turns amber. Next, press and hold the Tone Mode Button for three seconds. The unit will reset and then turn on automatically. AVR210 To correct this problem, first unplug the unit from the AC wall outlet and wait at least three minutes. After the pause, reconnect the AC power cord and check the units operation. If the system still malfunctions, a system reset may clear the problem. To clear the AVR 210s entire system, first put the unit in Standby by pressing the System Power Control button. Next, press and hold the Tone Mode and the FM Mode Selector buttons for three seconds. The unit will turn on automatically and display the RESET message in the Main Information Display AVR220 To correct this problem, first unplug the unit from the AC wall outlet and wait at least three minutes. After the pause, reconnect the AC power cord and check the units operation. If the system still malfunctions, a system reset may clear the problem. To clear the AVR 220s entire system, first put the unit in Standby by pressing the System Power Control button. Next, press and hold the Tone Mode and the FM Mode Selector buttons for three seconds. The unit will turn on automatically and display the RESET message in the Main Information Display AVR225 To correct this problem, first unplug the unit from the AC wall outlet and wait at least three minutes. After the pause, reconnect the AC power cord and check the units operation. If the system still malfunctions, a system “reset” may clear the problem. To clear the AVR 225s entire system, first put the unit in Standby by pressing the System Power Control Button. Next, press and hold the Tone Mode button for three seconds. The unit will turn on automatically and display the RESET message in the Main Information Display AVR230 To correct this problem, first unplug the unit from the AC wall outlet and wait at least three minutes. After the pause, reconnect the AC power cord and check the units operation. If the system still malfunctions, a system “reset” may clear the problem. To clear the AVR 130s entire system memory , first put the unit in Standby by pressing the Standby/On Switch so that the Power Indicator turns amber. Next, press and hold the Tone Mode Button for three seconds. The unit will reset and then turn on automatically. AVR300 To correct this problem, first unplug the unit from the AC wall outlet and wait at least three minutes. After the pause, reconnect the AC power cord and check the units operation. If the system still malfunctions, a system reset may clear the problem. To clear the AVR 300s entire system, first turn the unit off by pressing and releasing the Main Power Switch so that it pops out from its normal recessed position. Next, press and hold the AM/FM and the Dolby Pro Logic buttons while pushing in the Main Power Switch to turn the unit back on. AVR310 To correct this problem, first unplug the unit from the AC wall outlet and wait at least three minutes. After the pause, reconnect the AC power cord and check the units operation. If the system still malfunctions, a system reset may clear the problem. To clear the AVR 310s entire system, first put the unit in Standby by pressing the System P