1973 DATSUN B110 fuse chart

BODY

RADIO

Removal

Remove
he
cluster
lid

2
Disconnect
the
lead
wires

from
the
radio

3
Remove
two

nuts
used
to
install
the

front
side

of
the

radio
on
the
instrument

panel

4

Loosen
two
screws
as
shown
in
the

Figure
BE
55

and
remove
the
bracket

used
to
install
the
rear
side

of
the

radio
on
the
instrument

panel

5
Remove
the

radio

Noise

prevention
chart

Run
the

engine
raise

the

antenna
set
volume
to

Condition

Apparent
cause

Ignition
system

Noise
occurs

when

engine
is

oper
High
tension

code

ated

Ignition
coil
i

O

i

M

1
iiJ

1
7

L
l

o
f

I
ft

V

r

1
1
v

I

I

t

i

J

iL

1

Power
soutee
cable

Blue
white
cable
of

harness

2
Power
source
cable
Radio

3

Speaker
cables
4

Antenna
cable

5

Single
pole
fuse

6

Spare
fuse

7

Attaching
screws

Fig
BE
55

Removing
radio

maximum

and
set
the

dial
at

a
medium

point
without

catching

broadcasting
wave

Repair

High
tension

code

may
be
dis

regarded
because
noise

suppressor

is
used

Apart
the

choke
wire

frorn
the

ignition
coil
as

far
as

possible

Install
a
0

5
uF

capacitor
in

primary

side
terminal
of

ignition
coil

Note
8e
careful
not
to
install

capacitor
in

secondary
or

primary
breaker
side
or

otherwise
the

engine
be

comes

improper

Connect
wire
between

engine
and

ignition
coil

locating
area
of

body

with
bond

BE
32

ENGINE

MEASUREMENT
OF

REGULATING

VOLTAGE

The

regulator
voltage
is
measured
with
the
alternator

When

measuring
voltage
with

regulator
mounted
on

vehicle
it
is

necessary
to
rotate

engine
at

high

speed

Connect
DC

voltmeter
15

30V
DC
ammeter

l5
30A
battery
and
resistor
0
25
U
with
cables

as

shown
in

Figure
EE
52

1

Check
to
be

sure
that

all
electrical
loads
such

as

lamps
air

conditioner
radio

etc
are
disconnected

2
Before

starting
engine
be

sure
to
make

short
circuit

with

a
cable
between

fuse
side
terminal
of
resistor

O
25U

and

negative
sIde
terminal
of
ammeter

Failure
to

follow
this

caution
causes

needle
of
ammeter
to

swing

violently
and

rever

ely
resulting
in
a

damaged
anuneter

3

Refer

to
the

following
chart
to
determine
if

regulator

and
relative

parts
are
in

good
condition
REGULATOR

Unh
GENERATOR

q

P

1

CONNECTOR

r
l
ij
WIRE

HARNESS
J

Short
circuit
here

between

fuse
side
terminal

and

H

terminal
of

ammeter
before

starting
the

operation

I

I
I
IG

FUSE

BOX

B

f

EE055

Fig
EE
52

Measuring

regulator
voltage
with

regulator

on
vehicle

I
Start

engine

I
2
Rotate

engine
at
2

500

rpm
for
several

minutes

I

1
minutes

ammeter

I
After

racing
for

reading
below
5A
several

Fully

charged
battery
available

I

Replace
with

fully
charged

battery

2
Check

to
see
if

current
falls
below
5A

Current
falls

below
5A
I
After

racing
for
several

reading
over
5A
minutes
ammetet

I

Fully
charged
battery
not
available

1

Connect
a
0
25
n

resistor
in
series

I
Current
does
not

fall
below
5A

I

Recharge

battery
and
see

if
current
falls
below

5A

I

I
Reduce

engine
speed
to

idling
and

then
raise
it

to
2
500

rpm
while

observing
needle

of
voltmeter

I

I

I

Needle
of
voltmeter
held

within
limits
shown
in

the
below

table

Regulator

functioning

properly

EE

24
Needle
of

voltmeter
out
of
limits
shown
in

the

following
chart

Regulator
out
of

order
Have
it

repaired
at

authorized

shop