Whelen Engineering Company WS295HFS2 Series User manual

12-3456789-00C
C/WHELEN 1994
WS295-HFS
-10-
Revision
Label
Chip to be
replaced
Alignment
Dot
RAD
WAIL
YELP
PI
MAN
ON
MAN PA
WS295-HFS
C/WHELEN 1994
12-3456789-00C
HF
Revision
Label
(apply to outer
housing)
Chip to be
replaced
Alignment
Dot
©1998 Whelen Engineering Company Inc.
Form No.13359B (092998)
ENGINEERING COMPANY INC.
ROUTE 145, WINTHROP ROAD
CHESTER, CONNECTICUT 06412-0684
TELEPHONE:
(
860
)
526-9504
FAX:
(
860
)
526-4078
California-compliant Tone Conversion Instructions
for Models WS295HFS2-series
Installation Procedures . . .
1. Remove the plastic cover from the control
head and slide the chassis out.
2. Locate the IC chip shown in the illustration. Be
sure to note the locationofsmallali
g
nment dot
at one corner of this chip. Gentl
y
pr
y
the
old chip up and out of the socket holder.
Note:
You should use an IC inserter/extractor to
remove and install the chip. They can usually
be found at your local electronic parts store.
3. Check ali
g
nment of the chip le
g
s, strai
g
hten
as re
q
uired.
California -compliant siren tone conversion will enable 49-state WS295HFS2-series to produce tones in accordance
with Title 13. WS295HFS3-series and 4-series control heads must be returned to the factory for this conversion.
4. Position the chip above the socket holder, insur-
in
g
the “ali
g
nment dot” is in the proper location.
Line up the le
g
s with the socket holes, then
g
en-
tl
y
press the chip into the socket usin
g
the
inserter/extractor.
5. Re-assemble the unit and appl
y
the included
revision label to the underside of the housin
g
.
6. Repeat this chip removal/replacement procedure
for the remote amplifier. Be sure that the proper
chip is bein
g
installed in its proper unit.
NOTE: If your siren is not working properly after
modification, contact Whelen Tech. Support by
dialing 1-860-526-9504 then 6 and then 1.
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