Raytheon Beech Baron E55 - Page 678

Raytheon
Aircraft
Company
BARON
55
AND
58
SHOP MANUAL
TROUBLESHOOTING
FULL
TRANSISTOR
REGULATOR
9000591
TYPE
24
VOLTChart
31
I
INDICATION
PROBABLE
CAUSE
REMARKS
1.
High system
voltage.
a.
Output
transistor
shorted.
a.
Negative
grounded
systems:
1.
F terminal
of
generator
has
2.
Battery
overcharge.
been
grounded.
3.
Lights
burning
out.
2.
Poor
ground
in
system
or
poor
connection
at
generator
orregulator.
3.
Regulator
too
hot.
4.
Ground
in
wiring
between
F
terminals of
generator
and
regulator.
5.
Defective
transistor.
6.
Shotted
field
in
generator.
b. Positive
grounded
system:
1.
Poor
ground
in
system
or
poot
connection
at
generator
or
regulator.
2.
Regulator
too
hot.
3.
Short in
wiring
between
F
and
and
negative
leads
between
generator
and
regulator.
4.
Defective
transistor.
5.
Shotted field
in
generator.
4.
No
charge.
a.
Output
transistor
open
emitter.
a.
Check switch
for
operation.
Replace
if
necessary.
1.
Severe
ground
at
F terminal
of
regulator.
2.
Severe
ground
in
wiring
between
F
terminals
of
generator
and
regulator.
3.
Generator
field
completely
shorted.
b.
Positive
grounded
systems:
1.Sever
short
between
F
and
negative
leads between
generator
and
regulator.
2.
Generator
field
completely
shorted.
5.
Nocharge.
a.
Driver
transistor
shorted.
a.
Negative
and
positive
grounded
systems:
1.
Reverse
battery
polarity.
2.
High
positive
transient
from
an
external
source.
3.
Defective transistor.
E21
SECTION
13
OePcSS3~;Page
81