Revox A76

Contents
Page
1
GENERAL
4
2.
DISMANTLING
4
2. 1 .
Removal
of front
panel
4
2.2.
Removal
from
cabinet
4
2.3.
Lacing
of dial
cord
4
3.
CIRCUIT
DESCRIPTION 5
3. 1 .
Operating
controls
5
3.2.
Schematics
5
3.3.
RF
input
section
(front
end)
5
3.4.
I
F-section
6
3.5.
Demodulator
6
3.6.
Subcarrier
re-generation
6
3.7.
Multiplex
decoder
7
3.8.
Indicator
circuits
7
3.9.
Power supply
8
4. ALIGNMENT
INSTRUCTIONS 9
4.1.
Test
equipment
9
4.2.
Additional tools
and
filters
9
4.3.
Checking
of supply
voltages
10
4.4.
Tuning
of
IF
filters
10
4.5.
Alignment
of center
tuning
discriminator
1
1
4.6.
Checking
the
selectivity
1
1
4.7.
Alignment
of
RF
input
section
12
4.8.
Alignment
of
IF amplifier
13
4.9.
Checking symmetry
of the
center
tuning meter
(44)
13
4.10.
Checking
for
correct
limiting
13
2