TM
5-5420-226-20-1
Symptom-73
DETAILED
TROUBLESHOOTING
PROCEDURE
FROM
STEP
SUPPORT
SYSTEM
- PERSONNEL
HEATER
(Continued)
o26
I
‘Check
control
panel
heater
harness
for
continuity
I
from
panel
connector
contact
C
(CKT
402)
to
PERSONNEL
HEATER
Hi/LO
switch
terminal
6 (CKT
402).
1
Second
Technician
(Operator’s
Station)
Set PERSONNEL
HEATER
HI/LO
switch
OFF.
Set HEATER
MASTER
switch
OFF.
Set multimeter
to OHMS
X 1 scale und “zero”
meter,
or
use STE/ICE
Test
No, 91 (page
4-83).
Disconnect
basket-control
panel
accessories
harness
connector
from
master
control
panel.
Remove
4
screws,
nuts,
and
washers
from
master
control
panel
accessories
harness
connector
and
unmount
connector
from
master
control
panel.
Connect
red
probe
of meter
to panel
heater
harness
connector
contact
C (CKT
402).
Connect
black probe of meter to PERSONNEL
HEAT-
ER HI/LO
switch
terminal
6 (CKT
402),
Check
if meter
indicates
continuity.
Does meter
indicate
continuity?
)
Replace
personnel
HEATER
H1/
LO switch (page
10-77).
0
-m
r-)+
0
\
.WGND~1
CONTACT
C
405
407
32
(CKT 402)
\
//
BASKET-CONTROL
PANEL
ACCESSORIES
1
\/!
HARNESS
:
ACCESSORIES
HARNESS
L
CONNECTOR
b
\
w
I IE’ m m (“ “l’r=FiE-):
MASTER
CONTROL
PANEL
Replace
master
control
panel
heater
harness
(page
10-65).I
TA107391
4-702
