1.
SPECIFICATIONS
POWER
OUTPUT
Min.
RMS,
both
channels
driven,
20
to
20;
000Hz;
with
no.
more
than:
0.05%
total
harmonic
distortion
in
stereo
‘Operation
170
watts
per
channel
into
8
ohms
170
watts
per
channel
into
4
ohms
85
watts
per
channel
into
16
ohms
Min.
RMS.
both
channels
driven,
at
1,000Hz,
with
no
more
than
0.05%
total
harmonic
distortion
in
stereo
operation.
180
watts
per
channel
into
8
ohms
170
watts
per
channel
into
4
ohms
.
95
watts
per
channel
into
16
ohms
Min.
RMS,
from
20-to
20,000Hz,
with
no
more
than
0.05%
total
harmonic
distottion:
|
in
mono
(BTL)
operat
tion.
ao
;
"340
watts
into
8
ohms
340
watts’
into
16
ohms
Min.
RMS,
at
1,000Hz,
with
no
more
than
0.05%
total
harmonic
distortion
in
mono
(BTL)
operation.
340
watts
into
8
ohms
360
watts
into
16
ohms
LOAD
IMPEDANCE
In
stereo
operation
......
4,
8,16
ohms
In
mono
(BTL)
operation
..8,
16
ohms
POWER
BANDWIDTH......
20
to
20,000Hz
at
or
below
rated
min.
RMS,
power
output
and
total
harmonic
distortion
TOTAL
HARMONIC
DISTORTION
ibaa
ais
eoiy
of
Misses
ctor
ter
less
than
0.05%
at
or
below
rated
min.
RMS
power
output
2.
BLOCK
DIAGRAM
_
Level
-,
Buffer’
Amp.
_--
Subsonic
Filter.
‘INTERMODULATION
DISTORTION
(70Hz
:
7,000Hz=4
:
1
SMPTE
mothod)
Satine
wvada
deinen
sie
less
than
0.05%
FREQUENCY
RESPONSE
(at
7
watt)
:
oAeklakes
taihnd
na
etas
5Hz
to
100kHz
*$
dB
DAMPING
FACTOR
........
approximately
100
at
8
ohms
load
CHANNEL
SEPARATION
(at
rated
output,
1kHz)
boston
Data
niga
s,
tment
better
than
60dB
HUM
AND
NOISE
(IHF)
..
better
than
100dB
INPUT
SENSITIVITY
AND
IMPEDANCE
(1kHz,
for
rated
output)
..700mV
50kQ,
SUBSONIC
FILTER
.....-..--
—3dB
at
15Hz
(12dB/oct)
GENERAL
POWER
VOLTAGE.......-
400,
120,
220,
240V
50/60Hz
120V
(Usable
110—130V)
(for
U.S.A.
&
Canada
only)
POWER
CONSUMPTION.
.1,100
watts
(max.)
350
watts
(rated)
DIMENSIONS
.........-.
-.460mm
(18)4”)
W
178mm
(7
%”)H
400mm
(1534”)
D
WEIGHT:
shGt
oceanic
22.6kg
(49.8
Ibs.)
net
25.4kg
(56.0
Ibs.)
packed
*
Design
and
specifications
sbject
to
change
without
notice
for
improvements.
ame
"Power
Amp:.
Protector
-
Absorber
.
TABLE
OF
CONTENTS
Section
Title
Page
1.
SPECIFICATIONS..........................
02a
ee
2
2.
BLOCK
DIAGRAM
.....................0...0-
200s
2
3.
ADJUSTMENTS
.................0
0.000.
c
eee
eee
3
3-1.
Driver
Circuit
Board
Adjustments.....-....-.-...
3
3-2.
Power
Meter
Adjustment
...-.-.-...--2-2-0-0-5
3
4.
TROUBLESHOOTING
CHART......................
4
4-1.
Operation
Block
Diagram
......-....--.--02000+
4
4-2.
Main
Troubleshooting
on
Each
Section............
5
5.
PARTS
LOCATIONS
AND
PARTS
LISTS
.......
:.,
6
5-1,
F-2507
Driver
Circuit
Board
.................265
760°
5-2.
F-2511
SP
Protector
Circuit
Board
.....-...
easy
7:8
5-3.
F-2510
Circuit
Board
for
installing
emitter.......-
8
5-4.
F-2514
Meter
Lamp
Circuit
Board..........-.....
8
Section
Tide
Page
5-5.
F-2506
Input
Terminal
Circuit
Board
...........-
8
5-6.
F-2512
Connector
Circuit
Board
...........-...+
8
5-7.
F-2513
Filter
Circuit
Board
.................00005
9
5-8.
F-2508
Power
Supply
Volume
Circuit
Board
....
10
5-9.
F-2515
Meter
Amplifier
Circuit
Board
..........
11
5-10.
F-2509
Circuit
Board
for
installing
connector....
L1
STL
FIQUreS
fai.
science
oie
eteicied
ee
ed
vance
Leese
iae
de
12
5-12.
Power
Supply
Voltage
chanegeover
............
12
5-13.
Other
Parts
(Top,
Bottom
Side)
.........-.-...-
13
‘5-14.
Other
Parts
(Front
Side)
......-....-....0-
14,16
6.
SCHEMATIC
DIAGRAM
..........................
i5
7.
PACKING
LIST
.......................0.00.000008.
16
~
8.
ACCESSORY
PARTS
LIST........................
16
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