Denon DN-790R - Unit Disassembly Procedures

-
DN-790F1
DISASSEMBLY
1.
How
to
Remove
the
Front
Panel
(1)
Remove
the
four
screws
(4 x
12 CBTS-P)
in the
side of
the
top cover.
Move the
top cover
to the
rear and
rise
it
to remove
it.
(21
Press
the eject
button,
open
the cassette
box
and
remove
the
cassette
window as
shown
in
the figure.
Note:
Handle
the cassette
window
with
care
because
it
can
be
scratched
easilY.
(3)
Remove
the
three
screws
(3
X
10 CBTS-P)
on
top of
the
front
panel,
the two
hooks
on the
top,
the three
hooks
on
the
bottom and
pull
the
unit
forward
to detach
it.
2.
How
to
Remove
the
lnner
Panel
Ass'y
(1)
Remove
the
top cover
and
front
panel.
(Refer
to Step
1.)
(21
Remove
the three
retaining
screws
3
X
10 CBTS-(P)-B
holding
the
lnner
panel
at
the
front'
Remove
Volume
Knob
(L), (R),
Volume
Knob
(Fuji)
and
Volume
Knob
(C).
Remove
the
Hooks
at the
left
and
right
of the
front
face
of
the
lnner
panel
Ass'y,
and
the
two
hooks
on the
bot-
tom,
Front
Ass'y
can
be removed
towards
the front.
Volume Knob
(Fusi)
Votume Knob C
Hooks
at
left and
right
of
lnner
Panel
Ass'y
3.
How
to Remove
the Mechanisms
Remove
the
four
Mechanism
retaining
screws
3
x
1O CBTS(P)-B
and
take out C
Mechanism.
4. How
to
Remove
the
Meter
P.W.
Board
(1
)
Remove
the
top cover and
the
front
panel
(Refer
to sec-
tion
1.)
(21
Remove
the
lnner
Panel ass'y.
(Refer
to section
2.)
(3)
lf
you
remove
the five
binding
screws
(3
x
8
CBTS'
P
tight)
of
the meter
P.W.
Board. and
loosening
the
five
hooks,
the meter
P.W. Board
can
be
taken off.
Note:
When
replacing
the
tact switch,
check
to
make
sure
that
it
is not floating
above
the
P.W'
Board'
lf it is
floating,
the
switch
will be
in
the on
condi-
tion when the
set
is assembled.
(3)
Disconnect
all
lead connectors.
C. Mechanism
Meter
P.W.
Board
H/P
JACK
P.W. Board
REC
VR P.W. Board
w104
(11P)
-
CB104
Head wire
-
C8105
Head
wire
-
C8106
21P FFC
*
C8102
17P
FFC
*
C8103
w119
(3P)
*
CB118
w117
(5P)
-
C8116
)
Audio
P.W,
Board
(4)
(5)
I
5.
(1)
(21
6.
(1)
t2l
(3)
)
?sr
I
o
4-A
Screw
(3xlo)
Mechonism retoining Screw
ScreW
(3xlO)
Vo(ume l(nobs
2
hooks on
the
top of
the
front
Panel
12
(4)