Kenwood FL-180 User Manual Download

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FL-180

W O W F L U T T E R M E T E R

I N S T R U C T I O N MANUAL

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Summary of Contents for FL-180

Page 1: ...FL 180 W O W FLUTTER METER INSTRUCTION MANUAL ...

Page 2: ...rds Before using please read this instruction manual carefully to insure the maximum performance and trouble free operation of your FL 180 CONTENTS F E A T U R E S 3 SPECIFICATIONS 4 P A N E L CONTROLS AND THEIR FUNCTIONS 6 Front panel 6 Rear panel 9 PRECAUTIONS 10 O P E R A T I O N S 11 Preparation for operation 11 Operating procedures 11 Operation of w o w flutter meter 11 Output terminal on Rea...

Page 3: ...s recording signal source Besides measuring wow and flutter the FL 1 80 also indicates the speed of revo lution on a 4 digit frequency counter The frequency counter reference time can be used for crystal control and selection of AC power frequency 50 60 Hz The FL 1 80 can be switched to operate as a frequency counter Adoption of monitor lamp allows measurements of wow and flutter without adjusting...

Page 4: ...1 dB CCIR DIN Roll off Less than 0 5 Hz more than 6 d B o c t JIS NAB More than 200 Hz more than 1 5 dB oct JIS NAB Less than 0 3 Hz more than 6 dB oct CCIR DIN More than 200 Hz more than 1 5 dB oct CCIR DIN Maximum input voltage 100V DC AC peak Input monitor Level monitor lamp ON at more than 0 5 mV 5 mV of input Frequency counter section Measuring frequency range 10 9999 Hz Input level 100 mVrms...

Page 5: ... 3Vrms of full scale Output impedance 6000 20 unbalanced Recorder output terminal RECORDER Output voltage Approx DC 1V of full scale Output impedance 6000 20 unbalanced Power requirements Voltage AC 100 1 20 220 240V 10 50 60 Hz Power consumption Approx 1 4W Operating temperature 0 40 C Dimensions Width 260 mm Height 1 50 mm Depth 318 mm Weight Approx 5 3 kg Accessories Connecting cord with plugs ...

Page 6: ...B CCIR signal is obtained at the OSC OUTPUT 3 Note When measuring wow and flutter of each standard this switch should be set to the appropriate standard D OSC OUTPUT Recording signal output terminal A sine wave signal of the frequency selected by the recording signal select switch 2 is outputted The output voltage is 200 mVrms output impedance is 600 ohm and distortion factor is 1 Select the desir...

Page 7: ... component of 6 200 Hz 3 dB can be measured FUNCTION UNWTD By pressing the pushbutton switch wow and flutter on 0 5 200 Hz 0 3 200 Hz band can be measured for CCIR DIN INPUT Input terminal for measuring wow flutter and frequency The input impedance is 300 k 2 and the maximum input voltage is 100V DC AC peak LEVEL Input sensitivity select switch for measuring wow and flutter Press m the pushbutton ...

Page 8: ...ating an overflow frequency Note The lamp flickers momentarily at the time of power ON This is normal and is not an indication of trouble 17 FREQUENCY The 4 digit red LED display indicates the frequency of wow flutter being measu red The maximum reading is 9999 18 Carrying Grip Use this grip when carrying the FL 180 19 Meter This meter indicates wow flutter for direct reading It provides two full ...

Page 9: ...23 Power Connector AC power connector Use the supplied AC cord 24 Power Selector Switch Set this switch to the correct power voltage 25 GND Terminal Ground terminal Note Before using the FL 180 must be properly earthed Improper earthing can result in electrical shocks 26 TO SCOPE AC voltage proportional to wow flutter is available at this terminal The output voltage is about 3V full scale and the ...

Page 10: ... temperature rise results in unstable performance or damages transistors and IC s 2 Avoid using the FL 180 in locations with high temperature and humidity 3 Use the FL 180 in vibration free locations Vibration can cause misoperation 4 A C power fluctuation should be within 10 of the rated voltage Power frequency is 50 60 Hz 5 Before the power is turned ON check the mechanical zero point of the met...

Page 11: ...is not an indication that the meter is defective Fig 4 Connecting the FL 180 Operating Procedures Operation of wow flutter meter 1 Connect the FL 180 to the equipment to be tested such as tape recorder or turntable 2 In testing tape recorder use a wow flutter test tape or record and play the sig nal of the OSC output terminal 3 In testing turntable use a wow flutter test record Note To measure wow...

Page 12: ...nd WTD WOW FLUTTER UNWTD Weighted frequency response of each standard 0 2 200 Hz 0 5 0 3 6 0 Hz 6 0 200 Hz 0 5 0 3 200 Hz 6 Select the INDICATION switch according to the type of standard 7 Set the RANGE switch to the desired position so that wow flutter can be easily read on the meter Output Terminals on Rear Panel C o n n e c t to p e n r e c o r d e r or d i g i t a l m e m o r y s c o p e for m...

Page 13: ...in Hz Note When the input frequency is more than 9999 Hz the OVERFLOW lamp flickers In this case the frequency on 10 kHz order is not indicated for exam pie 13256 Hz is indicated as 3256 2 Select the position of the REFERENCE FREQUENCY switch on the rear panel to set the reference time time gate for crystal control or A C power frequency syn chronization Fig 6 shows the connections of the FL 1 80 ...

Page 14: ... by pulling downward Power voltage selection Fig 8 When operating the FL 1 80 on 100V 120V or 220V set the voltage selector switch on the rear panel to the correct position For operation on 100V or 120V take out the fuse 0 3A in the fuse holder on the rear panel and replace it with a 0 5A fuse Note When changing the power voltage be sure to remove the power cord from the AC outlet 14 Fig 8 Power v...

Page 15: ...and the frequency display is indicating 0 0 0 0 Hz 2 Connect a tester digital multimeter or oscilloscope to each output terminal and measure DC voltage 3 Adjust the following volume controls to obtain DC OV on each output terminal Other adjustments For adjustments requiring test instruments other than oscilloscope and multimeter contact your nearest TRIO s agency Fig 9 Location of adjustment 15 F ...

Page 16: ...KENW00D O C0RP0RATI0N 17 5 2 chome Shibuya Shibuya ku T o k y o 1 5 0 Japan 8 5 9 0 5 P R I M E D N J A P A N B50 2910 10 N ...

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