C O N T R O L S A N D I N D I C A T O R S; Front Panel - Kenwood MS-1660 Instruction Manual

FRONT PANEL

© POWER, S C A L E I L L U M Control
Turns power on/off and varies graticule brightness.
© POWER L E D Pilot Lamp
Indicates that the power supply has been turned on.
® J =
Ground terminal.
© C A L
Provides a positive 0.5V peak-to-peak square wave
signal of approx. 1 k H z for probe compensation adjust-
ment.
© T R A C E R O T A T I O N Control
Electrically rotates the trace to horizontal
Used as when the trace is tilted by terrestrial magnet-
ism.
© F O C U S Control
Used to adjust the trace for optimum focus.
© I N T E N S I T Y / A S T I G Control
I N T E N S I T Y : Adjusts the trace intensity.

C O N T R O L S A N D I N D I C A T O R S

position.
Fig. 1
A S T I G : Astigmatism adjustment provides optimum
spot roundness when used in conjunction
with F O C U S control
© I N P U T J a c k
Vertical input for channel 1 trace in normal sweep
operation. Vertical input for X - Y operation.
© A C - G N D - D C Switch
Three-position switch which operates as follows:
A C : Input signal is capacitively coupled, blocking
D C component.
G N D : Opens the path between the input jack and
vertical amplifiers so that the input of vertical
amplifier is grounded.
potential to be checked.
D C : Input signal is direct coupled, allowing observa-
tion of waveform containing D C component.
T h i s allows the earth
7