Kenwood VT-185 Analog multimeter
Manufacturer:
Model:
VT-185
Date:
1998
Category:
Group:
Description:
2ch AC Voltmeter

Information

General A Signal voltage to be measured, which is input from the INPUT connector, is passed through the First Attenuator and is converted to a low impedance by the Impedance Converter. The impedance-converted signal is normalized, or further attenuated in proportion to 1mV rms fullscale value through the Second and Third Attenuator. The normalized signal is magnified 20-fold by the Main Amplifier and is fed to the Output Amplifier and the Absolute-Mean Value Detector. The Output Amplifier magnifies the signal 50-fold and feeds to the OUTPUT connector. The Absolute-Mean Value Detector converts the signal from the Main Amplifier to DC current in proportion to the absolute mean value. The converted signal activates the Meter. The Attenuator Control encodes the signal led from the RANGE selector to generate an Attenuator Control signal. This signal controls the First, Second and Third Attenuator to set the sensitivity corresponding to each range. The Power supply feeds to the functional circuit ±5V DC voltages stabilized by its IC regulator.

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Service Manual
Manual type:
Service Manual
Pages:
28
Size:
1.29 Mbytes (1353153 Bytes)
Language:
english
Revision:
Manual ID:
B51-1134-00
Date:
1998 08 01
Quality:
Electronic document, no scan, very well readable.
Upload date:
2018 05 20
MD5:
44badf01da2517d71621901ed56eaf28
Downloads:
1883

Information

SPECIFICATIONS ... 3 SAFETY ... 4 CIRCUIT DESCRIPTION ... 5 BLOCK DIAGRAM ... 6 ADJUSTMENT ... 7 PARTS LIST (UNIT) ... 10 PARTS LIST (ELECTRICAL) ... 11 SCHEMATIC DIAGRAM ... 16 P.C. BOARD ... 26

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