Kenwood VT-183 Service Manual page 7

INPUT
1st ATT
REMATE
INPUT
INPUT BD.
AC 100V/120V/220V/230V
50/60Hz
PRE AMP
RECTIFIER
DC OUTPUT
OUTPUT
CIRCUIT
DIFFERENTIATOR
CONTROL BD
IMPEDANCE
2nd ATT
CONVERTER
ATT
CONTROL
POWER
POWER
TRANSFORMER
ON/OFF
UP
PEAK HOLD
REGULATOR
COMPARATOR
DOWN
DISCHANGE
COMPARATOR
CIRCUIT
OSCILLATOR
3rd ATT MAIN AMP
POWER
SUPPLY
DC±5V
DC±5V
UP/DOWN
PULSE CONTROL
GATE CIRCUIT
OUTPUT-1
OUTPUT
AMP
RELATIVE REF.
ABSOLUTE
MEAN
VALUE DET
METER
UP/DOWN
DECODER
COUNTER
UP SW
DOWN SW
MODE SW
RANGE
DISPLAY