Denon PMA-360 - Block Diagrams and Adjustments; Block and Level Diagram; Method of Adjustments

BLOCK
AND
LEVEL
DIAGRAM
PHONO
©
{MM/MC)
SELECTOR
4
TAPE SOURCE) Ali cs,
(MM7MC
)
vA
Cris
SouasF)
om
1
cDO
4
ye
I
®)
6)
)
TUNER
©
AUXO
SPEAKER
CTONE)
\
@ELY)
SPEAKER-A
TAPE-10
ees
|
‘
see
Pal
Ree
B-<
Sy
POWER
,
O
SPEAKER-8
TAPE-2 O
HEAD
PHONE
S/N
1
(TAPE
al
|
SELECTOR
o
MAIN
?
ws
VOLUME
(BALANCE) LOUDNESS)
TAPE-10
«)
REC
[
TAPE-20
(dBV)
30
-
60W/
82.
(21.9V
26.8dB)
10
ra)
10
CD
etc
IS5OmvV
(-16.5dB)
-20
-30
~40
MM
2.5mvV
10748
-50
(-52dB)
é
—60T
MCO.2emv
/
~70
_(-74dB)
of
94dB
-80
75dB
{at
SmV
input)
(at
O.SmvV
input)
-120
—123.5dB
METHOD
OF
ADJUSTMENTS
DC Volt Meter
Power
Control
Unit
(Component
side
)
3
JV258
at
©
ae
|
a
Py
oy
|
‘s)
1; [2
I
1
we
!
:
7
GEyvRso2
|
|
I
|
I
I
RLAOI
S
i
RL401
ree
ae
S1TP2
@
ee
pee
=
wy
aa
VR201
oi
IU L
i
IDLING
CURRENT
@ Setup
1.
Lay
the
unit
at
an
ordinary
position
away
from
a
direct
current
from
a
cooler
or
fan.
Do
the
adjustment
at
a
temperature
between
15°C
(59°F)
and
30°C
(86°F).
2.
Set
controls
as
follows.
POWER SWITCH
-—>OFF(B)
VOLUME
CONTROL
-
fully
counterclockwise.
(¥>
)
min.
[Main
volume
(VR201)
and
Semifixed
volume
(VR301...Lch,
VR302...Rch)
SPEAKER
Terminals
—
open:
do
not
connect
the
speakers,
dummy
load
etc.
e@ Adjustment
1.
Remove
Top
cover.
And
then
connect
DC
Voltmeter
to
Test
points
of
1U-2009
(Main
Unit).
2.
Connect
Power
cord
to
AC
wail
outlet,
and
turn
Power
Switch
"on"
(-=.)
.
Within
10
seconds
turn
VR301
(Lch)
and
VR302
(Rech)
clockwise
so
that
the
DC
voltmeter
reads
1.0
+
0.2
mV
DC.
Then
after
2
minutes
warmup
adjust
VR301
and
VR302
so
that
the
DC
Voltmeter
reads
3.0
+
0.2mV
DC.
4.
And
after
10
minutes
warmup
adjust
VR301
and
VR302
so
that
the
DC
Voltmeter
reads
3.0
+
0.2
mV
DC.
~
11
PIVIA-360