With line cord plugged
in
and
pow~r
switch on, check for
24
VAC
±I 0% between
pin
s
If
I
and #4
of
tool receptacle.
•Check transformer secondary
for
24
V
AC
± l
0%
- replace transformer
if
defective.
•Check wiring
to
printed circuit board assembly - repair or replace
if
defective.
•Replace printed circu
it
board assembly.
Check wiring from tool receptacle to primed circuit board
•Repair
or
replace if defective.
Replace soldering tool with known good tool
and
recheck.
•Troubleshoot soldering tool usi
ng
guide
in
tool tech sheet.
Replace printed circuit board assembly.
Tool
Overheati
ng
Replace soldering tool with known good tool and recheck.
•Troubleshoot soldering tool using guide
in
tool tech sheet.
Replace printed circuit board assembly
in
station.
Tip Temperature Testing
Error.~
Note: Tip temperature testing
mu
st
be
done using 30 gauge them10couple wire
resistance welded to the center
of
the wened area
on
the tip. tinning should
be removed before welding. Other method
s,
or
heavia
thermocouple wire.
will cause _error
s.
K-111 , K-121 , and K-13 I temperature test
kits
are
available; see Replacement Pans and Accessories section.
Replace soldering tool with known good tool and recheck tip temperature.
•Troubleshoot soldering tool using guide
in
tool tech sheet.
Calibra
te
station according to Tip Temperature Calibration Procedure.
Hh:h
Tin Voltaf:e
Replace so
ld
ering tool with known good tool and recheck tip temperature.
•Troubleshoot solderi
ng
tool using guide
in
tool
tech
s
he
et.
Check for continuity from
pin
#5
of
tool
rec<!ptacle
to line cord ground
pin
.
•Check wiring
from
tool receptacle
to
line
cord gro
und
pin - repair
if
defective.
Customer Service
Should your ECJ002S requi
re
service, it
ma
y
be
se
nt
to
the following address:
COOPER
TOOLS-CHERAW
PLANT
81
S
State
Road
Cheraw, SC 29520
ATTN:
Repair
Department
(803)537-5167
Page 6
EC1002S