Electro-Voice E-V 1180 - Parts List

FM.MULTIPLEX
ALIGNMENT
FM
ALIGNMENT
(E-V
1159
&
E-V 1180)
1. Defeat
the
permanent
AFC action
by
grounding
point
"D"
on the l.F.
pcb
a$sembly.
2. Tune
the
receiver to the low
end
of
FM
band
with
no signal
input.
Adjust
the AGC
voltage at
point
"A"
on
l.F'
pcb
assembly
with
respect
to chassis
ground,
for
+10.5
volts
DC.
Adiust with
100 kSapot
(1).
3.
Adjust the top slug
of
ratio
detector
transformer
for center
tuner-meter
reading
on
noise.
4. Connect
FM
signal
generator
to
the
antenna
terminals. Set
generator
at 90
MHz,3
W
R.F.40O Hz modulation
t75
kHz deviation.
5, Connect
an audio
VTVM and oscilloscope
to
the
E-V
1
159
output or E-V
1 180 tape
output.
6.
Tune
in the
signal
generator
on
receiver at
90
MHz
for
center
meter reading, NOTE;
lf
the unit
is
completely
out
of
alignment,
additional signal
level may be
required to obtain a
good
output
level.
Signal
level may be
reduced as
receiver
sensitivity
is improved.
7. Adjust the
bottom
slug
of the
ratio detector
transformer
for
maximum output.
8. Adjust
the lop,
then
bottorn
slugs
of l.F.
transformers
on the
l.F.
pcb
asserirbly
ineluding slugs of
transform€r
T2
(located
in
FM
tuning
unit)
for
maximum
output consistent
with
a
well-balancd signal
on oscilloscope.
9.
Adiust
the antenna
coil T1
in the
FM tuning unit
for
maiimum output,
Dial
pointer
should
be setting at 9O
MHz.
10. Tune
the signal
generator
and
FM tuner
to 106
MHz. Adiust
the antenna,
interstage
and
oscillator TR
trimmers
in the FM
tuning unit
for
maximum
output.
Dial
pointer
should
be
setting at
106 MHz.
1
1
,
Repeat steps 9 &
1 0
for
proper
tracking and
best
results.
12.
Remove AFC
ground!
MULTIPLEX
ALIGNMENT
Check
and
perlorm
"FM
Alignment"
if
necessary. lmproper
FM
alignment
will
make
proper
MPX
alignment
impossible.
1.
On
the
MPX
pcb
assembly,
connect a 67
kHz
{SCA}
generator
to thejunction of the 18 k$l,resistor
(20)
and the
5
llF
capacitor {3}
at the
input
of ths
multiplex
eircuit.
Connect
an audio
VTVM
to the base of
Ql .
(Mode
switch
in
STEREO
on E-V 1180.)
2. Adjust SCA coil L1
for
a
minimum output on VTVM.
3.
Bemove test equipment
connected
in
Step
1,
Connect a
multiplex
g€nerator
to
the
FM
antenna terminals,
Set
generator
level to 100 pV at 98 MHa.
4. Connect
an
oscilloscope
and audio
VTVM
to the
right
channel
output. Apply
LEFT
channel
modulation
(1007o1
from
the multiplex
generator
and adjust coils
T1
and T2 on
the MPX
pcb
asemb{y
for
minimum output.
5.
Modulate RIGHT
channel
and
che6k minimum
output
on left
channel.
Separation
should be 25
dB
or
greater,
Repeat
Steps
4
& 5
until
no further improvement is
obtained.
05C.
T
ANT,
TRllvt
8soo8
T I
PART
No. DESCRIPTION
E.V 118O RECEIVER
Tiansformer-Power
Cord-Power
Dial
Pointer
Knob-Tuning
Knob-Control
Front
Panel
Side
Panel
Cabinet
Assembly
Dial Lens
Terminal
Strip-Miniature
Terminal Strip {5T)
Dial
Drum Assembly
Dial
Eracket.
Socket &
Pulley
Assy.
Lampholder &
Brackat
(1
l
Spacer-Transformer
Lampholder
& Clip
{2}
Meter Support
E.V 1122 AMPLIFIER
15226
1651 1
A77164
77724.AM
77660-AM
A7717g-ED
77211-HV
A850]2
A77 17 4
2-1184
2781
85393
85010
8501 1
69021
20926
79008
1
5203
1651
1
77660-AM
A77180-ED
Transf ormer-Power
Cord-Power
Knob-Control
Front Panel
3
L-
IMME,?4
q_0
ER
-i lYfRSf
G.
TRTMM
GENERAL
PARTS
PARTS
LIST
PART NO. DESCRIPTION
GENERAL
PARTS
lgorto
3215
43071
4329
77163
17 162
76477-TV
76229
77161-PK
77161.ND
77161-PJ
20676
20519
2010s
1713?
171 38
20915
27083
2182
77110
11161
776p3
2A928
2A827-AP
Dial Spring
Meter-Tuning
Lamp
(No.
49
Stereo)
Lamp
(No.
47
Oiall
Flywheel
Shaft*Flywheel
shaft
Bearihg-Dial
Shaft
(Rear)
Bushing-Dial
Shafi
{Front}
Lens-Red
Lens*Blue
Lensi-Ambef
Fuse 1A 3AG {Slo-Blo}
Fuse 1Y.A
3AG {Output}
Strairi
Retief
(Hiyeo)
Phono
Socket
(Cbnnector)
lnsulator-Phono Sock€t
Fuse
Block
Terminal
Strip-Screw
(4Tl
Terminal
Strip-Screw
(3T)-
Clamp-Capacitor
Phone
Jack
FM Antenna
Pushnut
Nut-Knurled Brass