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 AVR310AVR220 AVR320AVR520 AVR225AVR125 AVR525AVR130 AVR230AVR330 AVR430AVR630 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 收音机爱 好者资料库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 收音机爱 好者资料库Isolating audio problems in an AVR receiverUsing 6/8 Direct In AVR,210,310,5106 CH INIC 501 InIC 501 OutCN 408IC 704 InIC704 OutIC705 InIC705 OutIC706 InIC 706 OutIC 705 InIC 705 OutIC 716 InIC716 OutIC 717 InIC 717 OutIC 718 InIC 718 OutCP 405FR31 15248943 19 17313FL57 13 27 25 21 20 2526 10 12571SR115776579SL9 24 222223317C5 21 191920315SW78 101095711AVR2206 CH INIC 501 InIC 501 OutCN 408IC 704 InIC704 OutIC705 InIC705 OutIC706 InIC 706 OutIC714 InIC714 OutIC 705 InIC 705 OutIC 716 InIC716 OutIC 717 InIC 717 OutIC 718 InIC 718 OutCP 405FR57 152489435710 12571FL31 13 27 25 21 20 25263119 17313SR115776579SL9 24 222223317C5 21 191920315SW78 101095711AVR320/5208 CH INIC 501 InIC 501 OutCN 408IC 704 InIC704 OutIC705 InIC705 OutIC706 InIC 706 OutIC714 InIC714 OutIC 705 InIC 705 OutIC 716 InIC716 OutIC 717 InIC 717 OutIC 718 InIC 718 OutCP 405FR57 152489435710 12571FL31 13 27 25 21 20 25263119 17313SR115776579SL9 24 222223317C5 21 191920315SW78 101095711CN418CP102IC101 InIC101OutIC102 Inic102 oUTic103 iNic103 OutSBR3334 21 2357SBL11 25 264231AVR225/1256 CH INIC 30 InIC 30 OutIC 31 InIC 31 OutIC 32 InIC 32 OutIC 33 InIC 33 OutIC 34 InIC 34 OutBN12IC 81 InIC 81 OutIC 80 InIC 80 OutBN16 InBN16 OutL ch27 25 19 205713191012R ch24 22 22 2331357 151445SL5476579SR24 10931 11C8 1843317SW21 19 25 26575Harman Consumer Group 250 Crossways Park Dr. Woodbury, New York 11797Email Isolating audio problems in an AVR receiverUsing 6/8 Direct In4141AVR 525In JackN404P6IC5 InIC5 OutIC3 InIC3 OutIC19 InIC19 OutIC18 InIC20 InIC20 OutIC3 InIC3 OutIC18 OutIC23 InIC23 OutIC25 InIC25 OutIC24 InIC24 OutIC26 InIC26 OutP9N806FL111094231353111FR3321 2221 2357 2866733SL5524433155SR77 29 2725 265777CTR9957763199SW11 11 26 2422 23571111SBL13 138 10109311313SBR15 15 23 2119 20671515AVR1306 ch inIC 23 InIC 23 OutIC 26 InIC 26 OutIC 42 InIC42 OutIC 4 InIC 44 OutIC 43 InIC 43 OutIC40 InIC40 OutIC49 InIC49 OutBN 12BN1L18 1721 231R19 124214SL24 2221 239SR57427C27 2521 235SUB24423SBL21 1921235713SBR8 10423111AVR230/3306 ch inIC 23 InIC 23 OutIC 26 InIC 26 OutIC 42 InIC42 OutIC 4 InIC 44 OutIC 43 InIC 43 OutIC40 InIC40 OutIC49 InIC49 OutBN 12BN1L18 1721 231R19 124214SL24 2221 239SR57427C27 2521 235SUB24423SBL21 1921235713SBR8 10423111AVR630/4308 CH InN404IC 3IC 3 OutIC 14 InIC 14 OutIC 12 InIC 12 OutIC 3 InIC 3 OutIC 27 InIC 27 OutIC 18 InIC 18 OutIC 20 InIC 20 OutIC 3 InIC 3 OutFL1 10 12 109316931423131FR3 19 17 19 2057 23205721 2357267N404IC 5 InIC 5 OutIC19 InIC 19 OutIC 25 InIC 25 OutIC 24 InIC 24 OutIC 26 InIC 26 OutSL5244331SR7 27 25 25 2657CTR9577631SW11 24 22 22 2357SBL138 10 10931SBR15 21 19 19 2057Harman Consumer Group 250 Crossways Park Dr. Woodbury, New York 11797Email 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 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 AVR320 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 u