Semi-conductors:
Transistors:
80
lc•s:
9
Diodes
37 +- 18 LEO + 8 Zener diodes
Rectifiers:
3 diodes
2 bridge rectifiers
Overload
Protection
The ctrcu/t has been desugned 90 that It WOI
Sense open end shott Clrcuit loading conditions
It will also sense Over capocltlve
inductive
loads and the automatic Overload
WII! then operate, Thermal
protection
devices have also been fitted to the
mains
input transformer
And onto
Of the Outout trans•Slors.
These transistors
are therefore
rotected aga.nst destrucnon by
overlo
ad
and ?iig
h operetin
g
s.
temperature
a fault condlllon occur these overload protection
circuats
reset themselves
when the feult has
been cleared.
Radio
unli
Waveband Coverage.
FM
87.5-
MHz
MW.
sto
• 1620 kHz
Sensitivities:
VHF'fM• 1.4 pv
3002 or 0.70gV in
15 kHz devlabon
for
de noise.
N018é + Signal
MW Band 6- IS pv
(modulation depth —3070)
Aerial
Sockets:
FM
FM d.pole 300 Q
AM.
External
Aerlal
and Earth
C'rcuits:
FM. 16 (4 ver.ab'e. 7 fixed IF. 4 ceramic filters.
trap 114 kHz)
AM' 6(2 variable.2 fixed IF. 4 ceramicfilters)
Intermediate
Frequencies:
FM: 10.7 MHz; AM: 460 kHz
FM Limiting:
Limiting Point. (—0—3 dB) S 1.202 uv
Bandwidth:
FM-IF.
kHz (approx.
AM-IF, 4.5 kHz (approx_
fM demodulator.
800 kHz
IF Noise:
AM:
60 dB
AM Suppresaion
2 56 dB at
kHz (measured With 22.SkHz
deviat.on and
modulation
at I mV in
Image RøJection:
f-w
MW
SO • 60 dB
AFC Accuracy (VHF,'FM):
Switchobje. copture accuracy ± 300 kHz
Capture
Ratio:
i dB for —30 dB noise at
mV in 300 Q and
kHz
deviøtaon.
12
FM Signal to Noise Ratio(Unweighted):
TO DIN 45405
measured with
Output:
MonolStereO;
Mono/Stereo.
FM Signal to Noise Ratio
TO
$ 405in the range31.5
kHz dev•ation
or over
Output,
Mono/Stereo•
at SOmw Ouiput
Mono/Stereo•
the heatslnkg
FrequencyResponse(VHF/FM):
Should
Belter than DIN 4S SOOfrom aerial
loudspeaker
40.6300 Hz
6.3.
kHz
Stereo Pilot Leakage:
55 dB at
S2dB
Distortion'
Mono/StereO:
deviation (to DIN 45500)
Stereo
Decoder:
Inteyated
IndleatOr and Rf level Mono/Stereo switch' no.
(Level set for 20 „V in 300 Q)
and
Stereo
Crosstalk
1 mV at aerial
— 6 dB
i kHz — 240 dB
250-öCOHz
6.3 • iO kHz
Measured at selected points
Safety Circuits:
To
European norms and IEC Regulations. etc
De-emphasis:
SO Vsecs
to standard
Audlo
Amplifier
Output
Power:
measured
to
Loudspeaker
iöO W musac power
W nominal
Loudspeaker groups I plus II
'20 W music power
40 W nomlnal power
Distortion
Factor:
at 40.
< 0.05% at I kHz and nominal
Q
Frequency Response:
Tape 0B):
PU Magnetle.
Power
Bnndwidth:
5
. 100 000 Hz at
Intermodulation:
O.
at lull output. measured at 260 Hz and
8000H2 with a ratio of 4: 1 (to DIN 4S 403)
the range 31.5 HZ
.
kHz
kHz deviation
at 30 Watts
70/63 dB
dB at 50 mw output
. , , 15 kHz
at
at
Watts
70/59 dB
dB
input to
output.
s ± t
dB
S ± I.Sd8
kHz
kHz
0.4/0
at 1 kHz and 40 kHz
circuit
PLL decoder wath automatic
and 47.5 kHz
devaatiOn•
—
—
dB
Section
DIN
4S 500 in 4
group I or II
= 2 x 50 w
power
— 4 x 30 w
—
10 w
. _ 20000Hz
and 2 x 27.S W
Sinus.
power
± f dB
• m 000 Hz
S dB
distortion
Signal to Noise Ratio:
(to OIN 4S405) for 30
mw
rx
267/63
dB
Monltor:
87/65 d8
Stereo
Crosstalk:
2 40 dB
the
. . 20 OOO
60 dB at
kHz
Input Sensitlvltieg and Impedance:
for 30 Watts output.
TN:
IOOmV
In
kQ
T A: '.5 mV/47 kQ
Monitor
160 mV/47Ö
kn
The TA •nput is frequency corrected to RIAA at
3180-318 end 75 p'secs
Input
Overload
Point:
TA Magnetic'
SOmV
TA Crystal
end TO 5.5 V
Monitor:
5.5 V
Volume Control
Accuracy:
The accuracyof the volume control setting. pet
Channel IS
dB •n the frequency range Of
20
000 Hz, With the loudnesg clrcu.t
operatlon this (Igure might be gllghtly degraded.
Treble
Control:
—17 dB to H- 15 dB at 16 kHz.
Medium
Control:
—10 d3 to +10 dB at 2 S kHz
Bass
Control:
—'7 dB to + )6.5 dB at 40 Hz
Stereo Baianee: (Left Ond RI ht)
—12.5/+25 d 8
Setting
range:
Noise
Filter:
Roil
off.
—3 dB at 7 kHz
Output
Facilities:
e)
4 loudspeakers
to DIN 41 529 (Impedance
Mlnimum
impedance 3.2 Q) tor stereo in two
separate
rooms_
It is permiasU31e
loudspeakers with an impedance of up to 16 Q
provided
that the assoc.eted
power can be tolerated,
The emplifler
fitted with an automatlc short circuit protection
device Which comes into Operallon when the
Output
load falls
below
h5 Q.
b)
2 sockets to DIN 45 07 for connectlng 2 sets
of stereo headphones- Output Impedance In the
range
5 to 2000 Q.
c)
Line
440 mV in 47 kQ for 500 mV on
Tape Input. Ri = 5 6 kO. Short-circuit proof. For
connecting
tape
recorder8,
amplifiers
Unles with corresponding
Input socket-
Damping Factor:
The Internal impedance of the empl'fler as0.15 Q
and when connectedto
4 Q load this WI" give
a damping factor Or 27 (29 dB). ThlS damping
factor 19 improved
when using loudspeakers
higher impedance.
Alterations
reserved!
in
4 Q-
to connect
loss In output
is
or mixer
Of a