Panasonic WJ-FS28 Service Manual page 6

INSTALLATIONS
Switching the microphone sensitivity
When using the microphone, set the Microphone
Sensitivity Switch inside this unit to the suitable position
as shown below according to the sensitivity of the micro-
phone.
Initially, –60 dBs are selected at the factory.
Microphone 1 : SW501
Microphone 2 : SW502
Microphone 3 : SW503
Microphone 4 : SW504
0
SW501-504
0 side setting : Sensitivity of the microphone is approx.
0 dB.
–60 side setting : Sensitivity of the microphone is
approx. –60 dB.
Power Supply Board
Front
−60
Microphone Jacks
Main Board
Microphone Sensitivity Switches
Picture Stability Switch ON/OFF
For reasons of the specifications of this set, reproduced
pictures will swing vertically if three cameras are con-
nected (with one channel left unconnected) for record-
ing.
If a recording is made when there is a channel to which
no camera is connected, the picture of a channel differ-
ent from the unconnected channel may be displayed in
quad mode reproduction.
The above can be avoided by setting the picture stability
switch (SW901) to ON.
The switch is originally set to OFF in the factory before
shipment.
ON
ON: Picture stability ON
OFF: Picture stability OFF
Power Supply Board
Front
Caution
The table below applies in cases where recordings are
made under the following settings using a video tapere-
corder having the T/V record function.
Picture
stability
ON
switch
VTR's T/D is displayed on black
ON
screen of unused channel.
VTR's T/D is not displayed on
OFF
black screen of unused channel.
If there is a channel to which no camera is connected,
VTR's T/D display and the picture stability switch may
be set to ON so that VTR's T/D will be displayed on the
black screen of the unconnected channel in reproducing
recorded pictures as mentioned above.
3
OFF
SW901
Microprocessor
Main Board
Picture stability switch
VTR T/D display
OFF
VTR's T/D is not displayed on
black screen of unused channel.
VTR's T/D is not displayed on
black screen of unused channel.