Harman Kardon FL8550 Service Manual

Also see for FL 8550: Brochure Owner's manual

Contents

FL8550Audio Characteristics Test ProcedureTest Equipment1. 3346 CD Player Evaluating Filter x 2 (NF Electronic Instrument)2. VP7722 Panasonic Audio Analyzer3. Sony YEDS18 Test CD discProcedureEquipment Setup1. The audio output of the CD player under test is connected to the CD filter L& R inputs.2. The outputs from the filter are connected to the Audio Analyzer.Check the output Voltage1. Set the mode of the filter to ‘ THRU’2. Set the mode of Audio Analyzer to ‘ LEVEL’ mode3. Select track 2 of the test disc and play the CD disc4. The output voltage and gain of the R & L channels are taken by pressingthe respective buttons on the control board of Audio Analyzer.Frequency Response1. Set the mode of the filter to reference level mode.2. Select the track 3, 4, 5, and 6 of the test disc and run it under ‘ Play’ mode.3. Check the output of the R & L ChannelsTotal Harmonic Distortion1. Set the mode of the filter to ‘ DIST/CH-SP’ mode2. Set the audio analyzer to ‘ DIST’ mode.3. Set the unit of the audio analyzer to ‘ %’ mode4. Select the track 2, 4, and 5 on the test disc and run them under ‘ PLAY’mode5. Check the % of each R & L channels925