Denon PMA-757 Service Manual

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WARNING:
TO
PREVENT
FIRE
OR
SHOCK
HAZARD.
DO
NOT
EXPOSE
THIS
APPLIANCE
TO
RAIN
OR
MOISTURE.
WARNING:
DO NOT
CAUTION
RISK OF ELECTRIC SHOCK
OPEN
CAUTION:
TO
REDUCE
THE.
RISK
OF
ELECTRIC
SHOCK,
D0
NOT
REMOVE
COVER
(OR
BACK).
NO
USER
SERVICEABLE
PARTS
INSIDE.
REFER
SERVIC-
ING
TO
QUALIFIED
SERVICE
PERSONNEL.
is intended to alert the user
1. Component parts
Parts
marked
with
,\
and/or
shading
in
this
service
manual
have
special
characteristics
important
to
safety.
Be
sure
to
use
the specified parts for replacement.
2, Leakage current
Before
returning
the
appliance
to
customer,
test
the
leakage
current
when
the
power
plug
is
connected.
Use
a
calibrated
(with
an
error
of
not
more
than
5%)
leakage
current
tester
and
measure
the
leakage
current
from
any
exposed
metal
to
the
earth
The
lightning
flash
with
arrowhead
symbol!
within
an
equilateral
triangle
of the presence of uninsulated “dangerous
voltage’
within
the
product’s
enclosure
that
may
be
of
sufficient
magni-
tude
to
constitute
a
risk
of
electric
shock
to
Persons.
The
exclamation
point
within
an
equilateral
triangle
is
intended
to
alert
the
user
of
the
presence
of
important
operating
and
maintenance
(servic-
ing)
instruction
in
the
literature
accompanying
the
appliance.
ground,
Reverse
the
power
plug
polarity
and
test
the
above
again.
Any
current
measured
MUST
NOT
EXCEED
0.5
miliamps.
Corrective
measure
must
be
taken
if
it
exceeds
the
limit.
SPECIFICATIONS
© PMA-777
POWER AMPLIFIER SECTION
Rated Output Power:
Total Harmonic
Distortion:
intermodulation
Distortion:
Output Bandwidth:
. Transmission
“++ Characteristics:
Both channel drives (TUNER — SP OUT)
100 Watts minimum rms per channel
{8 ohm Load) with less than 0.02% total
harmonic distortion from 20 Hz to
20 kHz,
120 W + +20 W (4 ohm Load)
20 Hz to 20 kHz at T.H.0 0.05%
(for U.S.A.)
1 kHz {4 ohm Load) 150 W + 150 W
(OIN, T.H.D 1%)
1 kHz (4 ohm Load) 30 W + 30 W IEC,
Subject to change by temperature test}
{for outside U.S.A.)
0.003% {20 Hz — 20 kHz at —3 dB ested
output 8 ohm Load)
0.02% {20 Hz — 20 kHz at rated output
8 ohm Load} (U.S.A.)
Below 7 kHz/60 Hz: 1/4 0.002% (ar
amplitude output equivalent to rated
output}
§ Hz — 80 kHz (f{HF T.H.D 0.03%}
1 Hz — 250 kHr 7
3 d® {a1} W output)
150 mV
47 k ohm
0.08 ohm (1 kHz)
Input Sensitivity:
Input Impedance:
Output Impedarice:,
Output Terminals:
8 ohm)
EQUALIZER AMPLIFIER SECTION
Equalizer Amplifier
Output:
Load}
Rated Output: 150 mV
Total harmanic distortion: less than
.0.002% lat 1 kHz, 8 V output)
Input Sensitivity/Input
Impedance: PHONO-1,2 MM 2.5mV
MC 200 pV
TUNER
DAD, VIDEO/AUX, TAPE
150 mV 47 k ohm
PHONO-1,2.MM_ within 20.248
{20 Hz — 100 kHz)
MC within 20.2 dB
(20 Hz — 100 kHz)
RIAA Deviation:
" “Speaker: Aor 8 Load 4 ~ 16 ohm
° A +B Load 8 — 16 ohm
Headphone/Stereo headphone (390 mW/
Maximum Output: 12 V fat 47 k ohm
150 mV 47k ohm
te ae ern A cI ee
|
|
|
|
|
|
“Tone
Control
Adjustable
Range:
Filtering
Characteristics:
Loudness
Characteristics:
AC OUTLET:
PHONO-1, 2
MM 88 d& [input terminals short-
circuited for 2.5 mV input)
MC 72 dB linput terminals short-
circuited for 250 nV input}
TUNER, TAPE, DAD, VIDEO/AUX:
110 dB {input terminals short-
circuited)
BASS 100 Hz +8 dB
TREBLE 10 kHz +8 dB
SUBSONIC 20 Hz, 6 dB/oct
Low frequency 100 Hz +7d8
High frequency 10 kHz +6dB
{For U.S.A., Canada and
Asia)
e PMA-757
SWITCHED x 2, 100 W (Total)
UNSWITCHED x 1, 250 W
POWER AMPLIFIER SECTION
j
ap Rated Output Power:
Total Harmonic
Distortion:
Intermodulation
Distortion:
may
G Output Bandwidth:
Transmission
Characteristics:
Input Sensitivity:
Input Impedance:
Output Impedance:
Output Terminals:
Both channel drives (TUNER — SP OUT)
80 Watts minimum rms per channei
{8 ohm Load) with less than 0.02% total
harmonic distortion from 20 Hz to
20 kHz.
100 W + 100 W (4 ohm Load)
20 Hz 10 20 kHz at T.H.D. 0.05%
(for U.S.A.)
1 kHz (4 ohm Load) 110 W+ 110 W
(DIN, T.H.D 1%}
1 KHz (4 ohm Load) 30 W + 30 W
(IEC, Subject to change by ternperature
test.)
(for outside U.S.A. and Canada)
0.005% {20 Hz — 20 kHz at —3 dB rated
output
8
ohms
Load)
0.02%
(20
Hz
—
20
kHz
at
rated
outut
8
ohm
Load)
{U.S.A.) ,
Below 7 kHz/60 Hz : 1/4 0.003% {ar
amplitude output equivatent to rated
output)
5 Hz — 80 kHz {IHF T.H.0 0.03%)
1 Hz ~ 200 kHz es dB (at) W output)
150 mV
47 k ohm
0.08 ohm (1 kHz}
Speaker: A or 8 Load 4 — 16 ohm
A +B Load 8 — 16 ohm
Heapdhone/Stereo headphone (310 mW/
Bohm) .
EQUALIZER
AMPLIFIER
SECTION
Equalizer
Amplifier
Output:
input
Sensitivity/Input
Impedance:
Maximum Output: 12 V {at 47 k ohm
Load)
Rated Output: 150 mV
Total harmonic distortion: less than
0.002% {at 1 kHz, 8 V output)
PHONO MM 2.5mV 47k ohm
MC 2004V 100 ohm
TUNER 150 mV 47k ohm
DAD, VIOEO/AUX, TAPE
150 mV 47k ohm
POWER SOURCE:
Germany and France AC 220 V, 50 Hz:
U.K. and Australia AC 240 V, 50 Hz::
U.S.A. AC 120 V, 60 Hz; Asia 110/120/
220/240 V, 50/60Hz (Multiple)
POWER CONSUMPTION: 245 W [U.S.A.); 250 W (IEC); 220 W
DIMENSIONS:
| WEIGHT:
(Multiple) BOO W Maximum Output
470 mm (18-1/2°W x 136 mm
(5-11/32")H x 413 mm (16-1/4°)G
(with Wood Board!
434 mm (17-5/64°W x 136 mm
(5-11/32°}H x 413 mm (16-1/4°)0
{without Wood Board)
(including rubber feet, contro! knobs,
and terminals.)
12.5 kg (27 Ibs 9 oz) [with Wood Board)
11.5 kg (25 Ibs 6 oz) [without Wood
Board)
Design
and
specifications
are
subject
to
change
without
prior
notice.
RIAA Deviation:
PHONO MC) within 10.3 d8
{20 Hz — 100 kHz)
OVERALL CHARACTERISTICS
SN Ratio
(HFA Network):
Tone Control Adjustable
Range:
Filtering Characteristics:
Loudness Characteristics:
AC OUTLET:
(For U.S.A., Canada and
Asia)
POWER SOURCE:
POWER CONSUMPTION:
DIMENSIONS:
WEIGHT:
PHONO
MM — 87 dB {input terminats short
circuited for 2.5 mV input)
MC 70 dB (input terminals short:
circuited for 250 2 V input}
TUNEKH, TAPE, DAD, VIDEO/AUX:
110 dB (input terminals short:
circuited)
BASS 100 Hz +8 dB
TREBLE 10 kHz 28 d5
SUBSONIC 20 Hz, 6 dB/oct
Low frequency t00 Hz +7d8
High frequency 10 kHz +6d@
SWITCHED x 2, 100 W (Toral}
UNSWITCHED x 1,250 W
Germany and France AC 220 V, SO HZ:
U.K. and Australia AC 240 V_ 50 Hr:
U.S.A. and Canada AC 120 V, 60 Hz:
Asia 110/120/220/240 V, 50/60 Hz
(Multiple)
215 W (U.S.A.}; 500 VA (Canada):
240 W (IEC); 190 W (Multiple): 650 W
Maximum Output
470 mm (18-1/2°)W x 136 mm
(5-11/32°)H x 413 mm (16-1/4°°)0
(with Wood Board)
434 mm (17-5/64"°}W x 136 mm
(S-11/32°)H x 413 mm (16-1/4")0
{without Wood Baard)
liacluding rubber feet, control knobs,
and terminats.) :
13 kg (28 Ibs 11 02) (with Wood Board
12 kg (26 Ibs 7 oz) (withour Wood
Board)
10.5 kg (23 Ibs 2 02) (without Wood
Board) (For U.S.A. & Canada)
Design and specifications are subject to change without prior notice:
NOTE:
The
following
code
correspond
to
the
appropriate
models.
E2
for
Europe,
£1
for
Asia,
E3
for
U.S.A.,
EK
for
U.K.,
EA
for
Australia
and
EC
for
Canada.
This
Service
Manual!
is
prepared
based
on
E2
Gold
Version.
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ee
PMA-777/757. mam
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Denon PMA-757 Specifications

General

Brand	Denon
Model	PMA-757
Category	Amplifier
Language	English