Installation Of Accessories; Optional Filter Installation - Kenwood TS-930S Instruction Manual

6.2 INSTALLATION OF ACCESSORIES
1. Preparation
(1) Prepare the following tools
© No. 2 Philips screwdriver
© Diagonal cutters
(2) Unplug the power cord from the AC outlet before
starting work.
(3) Remove the 8 top and 8 bottom case screws and
remove the covers.
6.3 OPTIONAL FILTER INSTALLATION
Four optional crystal filters are available.
2. Install up to three filters according to the following
procedure
(1) Remove the top and bottom covers (sixteen screws,
total).
(2) Plug-in filters at their locations on the signal unit board.
Tighten the supplied mounting screws.
COMBINATION OF IF FILTERS
WIDE or
NARROW
2.7kHz
(Built-in)
2.7kHz
2.7kKHz
(Built-in)
CW/FSK
*2
(YK-88C-1
500Hz)
(YG-455C-1
500Hz)
500Hz
NARROW
*1
(YK-88A-1
6kHz)
2.7kHz
(YK-88A-1
6kHz)
WIDE
NARROW
NAR-WIDE Overall pass-
a ewitch 883MHz IF 455kHz 1F bandwiidh
LOW-CUT to
WIDE 2.7kHz 2.7kHz 2.7kHz
(YG-455CN-1
6kHz 6kHz
6kHz 6kHz
2.7kHz 2.7kHz
2.7kHz 2.7kHz
M@ YK-88A-1
(1) Remove the small circuit board fastened to the YK-
88A-1 location.
(2) Plug-in the YK-88A-1 and replace the filter mounting
screws.
@ YK-88C-1
(1) Plug-in the YK-88C-1 and repiace the filter mounting
screws.
(2) Cut one lead of diode D91 mounted on the signal unit
board. Plug-in the filter and replace the filter mounting
screws.
M@ YG-455C-1 or YG-455CN-1
(1) Remove the jumpered connector at the filter position
and plug-in the filter. Replace the filter mounting
screws.
(2) Replace the top and bottom covers.
SSB SLOPE AF TUNE
es -
1500Hz
Filter combina-
tion recommend-
ed for CW VBT
Yes More narrower
700Hz
600Hz~
2.7kHz
Yes Yes
Table 6-1
NOTES:
( }=Optional filter installed.
*1 Shows recommended optional filter combination for CW.
*2 AF TUNE in FSK mode does not work.
*3 Although VBT circuit operates, not recommended.
_*4 No optional SSB filters.
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