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Telefunken Bayreuth 5652 MX - User Manual

Telefunken Bayreuth 5652 MX
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Bayreuth
5652
MX
Opus
Studio
TELEFUNKEN
Service
Information
Power
supply:
Power
line
voltage:
Power
consumption:
Mains
fuses:
Fuses
for
power
output
stages:
Dial
lights:
Pilot
light
for
FM-stereo
indicator:
Telefunken
tubes:
Transistors:
Diodes:
Rectifiers:
Tuned
circuits:
Wave
ranges:
Genre
de
courant
d'alimentation:
Tension
secteur:
Consommation
de
courant:
Fusibles
secteur:
Fusibles
ampli
final:
Eclairage
du
cadran:
Ampoule
pour
indicateur
FM
Stéréo:
Tubes
Telefunken:
Transistors:
Diodes:
Redresseurs:
Nombre
de
circuits:
Clase
de
corriente:
Tensiones
de
red:
Consume
de
potencia:
Fusibles
de
red:
Fusibles
para
etapa
final:
Iluminacién
de
escala:
3
lamparitas
7
V
/
0,3
Lamparite
de
iluminacién
de
FM-Stereo:
Vaivulas
Telefunken:
Transistores:
Diodes:
Rectificadores:
Circuitos
de
sintonia:
Bandas
de
ondas:
Stromart:
Netzspannungen:
Stromverbrauch:
Netzsicherungen:
Endstufensicherung:
Skalenbeleuchtung:
Beleuchtungslampchen
fiir
FM-Stereo-
Indikator:
Telefunken-Réhren:
Transistoren:
Dioden:
Gleichrichter:
Kreise:
Wellenbereiche:
Technical
Data
Alternating
current
50/60
c/s
Aerials:
117
and
230
volts
Gpproxinatey
130
watts
1.6
amp
for
117
volts
—
0.8
amp
for
230
volts
2X1.25
amp
fast
Short
wave
band-
3
bulbs
7
volts
/
0.3
amp,
cylindrical
spreading:
1
bulb
“Osram
10-3510",
7
volts
/
0.1
amp
Intermediate
total
number
7:
ECC
85,
ECH
81,
EF
89,
frequencies:
EAF
801,
ECF
80,
EM
87,
ZA
1004
total
number
19:
AC
122
{4),
AC171
‘
poco
Audio
output
power:
AC
117
(1),
AD
149
(4),
SG
2182
(2),
SG
2183
(
{
Connections
tota!
number
11:
BA
121,
AA
113
(2),
AA
111
(6),
provided
for:
LB
0045
(2)
total
number
4:
E
15
C
125
KP,
B
250
C
100,
B
60
C
100,
B
30
C
2200
FM:
total
number
17:
including
5
in
decoder
unit
AM:
total
number
8,
plus
1
IF
absorption
circuit
AM
515
—
1630
ke/s
SW
2
2.25
—
6.95
me/s
(133
—
43
m)
WwW
6.9
-
22.5
me/s
(43.5
-
13.3
m)
sw
1
VHF-FM
87.5
—
108
me/s
Caractéristiques
techniques
Gammes
d'ondes:
alternatif
50/60
Hz
117
et
230
volts
130
watts
pour
117
V:
1,6
A=
pour
230
V:
0,8
A
X1,25
A,
rapide
3
ampoules
7
V
/
0,3
A,
cylindriques
Etalement
O.C.:
1
ampoule
“Osram
10-3510",
7V/0,1
A
Moyennes
fréquences:
7;
ECC
85,
ECH
81,
EF
89,
EAF
801,
ECF
80,
Puissance
de
sortie:
EM
87,
ZA
1004
Prises
pour:
19:
AC
122
(4),
AC
171
(4),
AC
122/30
Q
AC
117
(1),
AD
149
(4},
SG
2182
(2),
SG
2183
(2)
V1:
BA
121,
AA
113
(2),
AA
111
(6),
LB
0045
(2)
4:
£15
C
125
KP,
B
250
C
100,
B
60
C
100,
B
30
C
2200
FM:
17,
dont
5
pour
le
décodeur
AM:
8+1
circuit
d'absorption
MF
Antennes:
Datos
técnicos
Corriente
alterna
50-60
c/s
Antenas:
117
y
230
Voltios
Unos
130
Vavios
para
117
V:
1,6
Amp.
—
para
230
V:
0,8
Amp.
21,25
A
de
occ’én
pies
fitnde
mp.,
cilindricas
Extensién
de
la
banda
de
onda
corta:
ara
indicator
1
lamparita
“Osram
10-3510",
7
V/0,1
Amp.
Frecuencias
7:
ECC
85,
ECH
81,
EF
89,
EAF
801,
ECF
80,
intermedias:
EM
87,
ZA
1004
Potencia
de
salida:
19:
AC
122
14),
AC
171
(4),
AC
122/30
(2
Enchufes
AC
117
(1),
AD
149
(4),
SG
2182
(2),
G
2183
(2)
de
conexién
para:
BA
121,-AA
113
(2),
AA
11)
(6),
LB
0045
(2)
.
-
1
4;
E15
C
125
KP,
B
250
C
100,
B
60
C
100,
B
30
C
2200
M.F.:
17,
5
ellos
para
decoder
M.A.:
8+1
circuito
de
absorcién
de
F.I.
AM
jorge
media)
515
—
1630
me/s
SW
2
[onda
corta
2)
2,25
~
6,95
mc/s
(133
—
43
m)
SW
1
londa
corta
1)
6,9
—
22,5
me/s
(43,5-13,3
m)
FM
{ultracorta)
87,5-
108
mc/s
Technische
Daten
Wechselstrom
50-60
Hz
117
und
230
Volt
ca,
130
Watt
Antennen:
fir
117
V:
1,6
A
—
fir
230
V:0,8A
2x1,25
A,
flink
3
Lampchen
7
V/0,3
A,
zylindrisch
Kurrwellen-
Bandspreizung:
Zwischenfrequenzen:
Ausgangsleistung:
1
Lémpchen
,Osram
10-3510",
7
V/0,1A
7:
Anschiiisse
fir:
ECC
85,
ECH
81,
EF
89,
EAF
801,
ECF
80,
EM
87,
ZA
1004
19:
AC
122
{4},
AC
171
(4),
AC
122/30
2.
AC
117
(1},
AD
149
(4),
SG
2182
(2),
SG
2183
(2)
11:
BA
121,
AA
113
(2},
AA
141
(6),
LB
0045
(2}
4;
£15
C
125
KP,
B
250
C
100,
B
60
C
100,
B
30
C
2200
FM:
17,
davon
5
fir
den
Dekoder
AM:
8+1
ZF-Sperrkreis
AM
(MW,
515
--
1630
kHz
SW
2
(KW
2)
2,25
—
6,95
MHz
(133
—
43
m)
5650
MX
s
wr
er
:
on
VHE-FM:
built-in
dipole
aerial,
may
be
used
for
short
wave
reception,
too
:
on
standard
broadcast
medium
waves:
built-in
ferrite
rod
antenna,
may
be
rotated
for
best
reception
by
means
of
short
wave
vernier
for
short
wave
range
1
(SW
1)
for
VHF-FM
range:
10.7
me/s
for
AM
ranges:
460
kc/s
30
watts
(each
channel
15
watts)
VHF-FM
dipole
cerial,,
longwire
outdoor
aerial
for
AM
ranges,
ground
contact,
.
record
player
stereo
or
monaural
with
high-
impedance
pick-up
cartridge,
stereophonic
or
monaural
tape
recorder,
2
stereo-loudspeaker
nominal
power
rating
min.
15
watts
impedance
approx.
4
ohms
at
less
than
1
%o
non-linear
distortion
AM
(PO)
515
—
1630
kHz
SW
2
(BE
2)
2,25
~
6,95
MHz
(133
-
43
m)
OC
1)
6,9
—
22,5
MHz
(43,5
—
13,3
m)
87,5
—
108
MHz
sW
1
FM
FM:
antenne
dipdle
incatpar
se:
agissant
aussi
comme
antenne
auxilicire
pour
O.C.
‘AM:
antenne
ferrite
incorporée
orientable
pour
P.O.
Ber
loupe
O.C.
(vernier)
M:
10,7
MHz,
460
kHr
30
watts
(2X15
watts)
antenne
dipdle
incorporée
eu
extérieure,
terre,
pick-up
stéréo
ou
mono
4
hayte
impédance,
magnetophone
stéréo
ov
mino
pour
reproduction
et
enregistrement
de
bande:
magnétiques,
2
haut-parleurs
stéréo
15
watts
minimum
chacune,
impédance
eny.
4
ohms
6
coéfficient
de
distorsion
¢
1
%o
FM:
antena
de
dipole
incoporada,
funcionando
como
antena
auxiliar
ds
onda
corta
mediante
desplazamiento
de
chipa
de
conexién
anteno
de
barra
de
ferito
incorporada
ajustable
para
onda
nedia
AM:
mediante
lupa
de
onda
cora,
funcionando
en
fa
banda
de
onda
corta
|
M.F.:
10,7
me/s
—
M.A.
460kc/s
30
Vatios
(cada
canal
15
Vaios)
Antena
de
dipole
exterior
ep.
incorporada
de
ultracorta,
Antena
exterior
de
onda
mdia,
conmutable
mediante
chapa
o
antena
defer
rito
resp.de
dipolo,
tomo
de
tierra,
Tocadiscos
con
fonocaptor
de
alta
impedancia,
monaural
y
estereofénico,
Grabadora
de
cinta
monaual
y
estereofdnica,
2
altoparlantes
al
factor
dedi
storsiones
<
1
%/o,
unos
4
ohmios
de
impedania
SW
1(KW1)
6,9
—
22,5
Mz
(43,5
-
13,3
m)
FM
(UKW)
=
87,5
-
108
Miz
:
FM:
eingebaute
Dipslaninne
durch
Lasche
als
Behelfsontenne
for
Kurzwele
wirksam
AM:
eingebaute
einstellbay
F
errit-Stobontenne
fir
M
durch
KW-Lupe
im
KW
1-Bre
#ch
FM:
10,7
MHz
—
AM:
460
kiz
30
Watt
{je
Kanal
15
Watt}
FM-Einbau-
bzw.
AuBendipia
ntenne
AM-Au®enantenne
durch
bscche
auf
Ferrit-
und
Dipolantenne
umschaltbar
Erde
Platienspieler
(Stereo
oderYconaural]
mit
hoch-
ohmigem
Tonabnehmer
Stereo-
oder
monaurales
Tin
andgerdt
2
Stereo-Lautsprecher
Nennbelastbarkeit
min.
15
Ncs#tt,
Inpedanz
ca.
4
Ohm,
bei
Kirr
foktor
<
1%o
Question and Answer IconNeed help?

Do you have a question about the Telefunken Bayreuth 5652 MX and is the answer not in the manual?

Overview

  1. Function Description
  2. Important Technical Specifications
  3. Usage Features
  4. Maintenance Features

This document provides service information for the Telefunken Bayreuth 5652 MX and Opus Studio 5650 MX, which appear to be high-fidelity audio receivers or tuners, likely from the mid-1960s given the component types. The manual details technical specifications, alignment procedures, and circuit modifications, indicating a sophisticated device for its era.

Function Description:

The Telefunken Bayreuth 5652 MX and Opus Studio 5650 MX are designed as comprehensive audio receivers, capable of receiving various radio bands and serving as a central hub for other audio components. They feature both AM (Amplitude Modulation) and FM (Frequency Modulation) radio reception, including shortwave bands, and are equipped with a stereo decoder for FM stereo broadcasts. The device incorporates a powerful audio output stage, suggesting it's an integrated amplifier-receiver, capable of driving external loudspeakers. It provides connections for a record player (stereo or monaural), a tape recorder (stereo or monaural), and external loudspeakers, making it a versatile component for a home audio system. The presence of an Automatic Frequency Control (AFC) system for FM tuning indicates a focus on stable and clear reception.

Important Technical Specifications:

  • Power Supply: Operates on alternating current (AC) at 50/60 Hz, compatible with 117 and 230 volts.
  • Power Consumption: Approximately 130 watts.
  • Fuses:
    • Mains fuses: 1.6 amp for 117 volts, 0.8 amp for 230 volts.
    • Power output stages: 2 x 1.25 amp (fast-acting).
  • Dial Lights: 3 bulbs, 7 volts / 0.3 amp, cylindrical.
  • FM-Stereo Indicator Pilot Light: 1 bulb, "Osram 10-3510", 7 volts / 0.1 amp.
  • Tubes (Telefunken): Total of 7 tubes: ECC 85, ECH 81, EF 89, EAF 801, ECF 80, EM 80, EM 87, ZA 1004. These tubes are primarily used in the tuner and preamplifier sections, characteristic of hybrid designs of the period where tubes handled sensitive RF/IF stages and transistors handled power amplification.
  • Transistors: Total of 19 transistors: AC 122 (4), AC 171 (4), AC 122/30 (2), AC 117 (1), AD 149 (4), SG 2182 (2), SG 2183 (2). The presence of AD 149 transistors, often used in power output stages, confirms the integrated amplifier functionality.
  • Diodes: Total of 11 diodes: BA 121, AA 113 (2), AA 111 (6), LB 0045 (2).
  • Rectifiers: Total of 4 rectifiers: E 15 C 125 KP, B 250 C 100, B 60 C 100, B 30 C 2200.
  • Tuned Circuits:
    • FM: Total of 17, including 5 in the decoder unit.
    • AM: Total of 8, plus 1 IF absorption circuit.
  • Wave Ranges:
    • AM (Medium Wave): 515 - 1630 kc/s.
    • SW 2 (Short Wave 2): 2.25 - 6.95 mc/s (133 - 43 m).
    • SW 1 (Short Wave 1): 6.9 - 22.5 mc/s (43.5 - 13.3 m).
    • VHF-FM: 87.5 - 108 mc/s.
  • Intermediate Frequencies:
    • VHF-FM: 10.7 mc/s.
    • AM ranges: 460 kc/s.
  • Audio Output Power: 30 watts (15 watts per channel). This indicates a stereo amplifier.
  • Loudspeaker Impedance: Approximately 4 ohms at less than 1% non-linear distortion.
  • Short Wave Band-Spreading: Achieved via a short wave vernier for SW 1.

Usage Features:

  • Antennas:
    • VHF-FM: Built-in dipole aerial, which can also be used for short wave reception.
    • AM (Standard Broadcast Medium Waves): Built-in ferrite rod antenna, which can be rotated for best reception.
    • Connections for external longwire outdoor aerial for AM ranges and ground contact are also provided.
  • Connections:
    • Record Player: Stereo or monaural, with high-impedance pick-up cartridge.
    • Tape Recorder: Stereophonic or monaural, for both reproduction and recording.
    • Loudspeakers: Two stereo loudspeaker connections, with a nominal power rating of at least 15 watts per channel.
  • FM-Stereo Indicator: A dedicated pilot light indicates when an FM stereo broadcast is being received.
  • AFC (Automatic Frequency Control): This feature helps stabilize FM tuning, ensuring clear and consistent reception. The manual includes procedures for tuning in the VHF-FM AFC, indicating user interaction for optimal performance.

Maintenance Features:

The service information provides detailed instructions for alignment and circuit modifications, crucial for maintaining the device's performance over time.

  • Alignment Procedures:

    • Control Point Alignment: Instructions for adjusting the main supply voltage and control current of the output stages, emphasizing the importance of allowing 10 minutes for the device to warm up. This ensures proper operating conditions for the tubes and transistors.
    • AM Alignment Chart: A comprehensive table detailing the sequence of alignment steps for the AM section, including intermediate frequencies, oscillator adjustments, and input circuit tuning. It specifies the use of a signal generator and output meter, and notes that alignment should be completed by adjusting the slug or trimmer for the high-frequency end of each range.
    • FM Alignment Chart: Similar to the AM chart, this section outlines the alignment procedure for the FM section, including intermediate frequencies and the stereo decoder. It highlights the use of a tube shield for the ECC 85 tube to prevent interference and specifies checking the control voltage for the AFC system.
    • VHF-FM AFC Tuning: Specific steps for tuning the automatic precision for FM, involving input voltage adjustments and checking the output meter readings for zero deviation.
    • Stereo Decoder Alignment: References the alignment instructions for the Opus 5550 model, indicating a commonality in design or a forthcoming specific guide for the decoder, highlighting the specialized nature of stereo alignment.

  • Circuit Modifications:

    • Transistor Replacement: Detailed instructions for modifying the driver circuit when replacing specific transistors (AC-117, AC-175) with newer types (SG-2182, SG-2183). This includes a list of required materials (new transistors, Zener diodes, resistors) and modifications to the mounting of transistors, such as widening holes and ensuring proper insulation for cooling. This suggests that Telefunken provided updates to improve reliability or adapt to component availability.
    • Component Polarity: Emphasizes observing the correct polarity for components like VDR resistors during modifications.
    • Cooling: Instructions for fixing transistors to the bent cooling fin with mounting clamps and widening holes to 4mm for proper heat dissipation, crucial for the longevity of semiconductor components.

  • Important Notes for Maintenance:

    • Safety: Warnings about working with high voltages (80 KVolt) and the importance of using an isolation transformer.
    • Component Matching: Emphasizes the importance of using matched transistors for the output stages to ensure symmetrical operation and prevent thermal runaway.
    • Grounding: Instructions for ensuring proper ground connections and avoiding short circuits.
    • Troubleshooting: Guidance on checking for defects, such as open circuits in the output stages or incorrect bias voltages, and the impact of these on performance.
    • Component Values: Provides specific component values for various resistors and capacitors in the circuit, essential for accurate repairs and replacements.

The manual reflects a product designed for quality audio reproduction, with a robust, albeit complex, internal structure that required specific knowledge and tools for servicing. The inclusion of both tube and transistor technologies points to a transitional period in audio electronics, combining the perceived warmth of tube sound with the efficiency of solid-state amplification.

Telefunken Bayreuth 5652 MX Specifications

General IconGeneral
BrandTelefunken
ModelBayreuth 5652 MX
CategoryRadio
LanguageEnglish

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