Bang & Olufsen Beogram 3000 Service Manual

2-2
MUTING PCB MODULE 11
Old version:
New version:
Beogram med indbygget RIAA forforsterker.
Beogram with built-in RIAA pre-amplifier.
Beogram mit eingebautem RIAA-Vorverstarker.
Beogram avec pré-amplificateur RIAA incorporé.
Beogram uden indbygget RIAA-forforsterker.
Beograms without built-in RIAA pre-amplifier.
Beogramme ohne eingebauten RIAA-Vorverstérker.
Beogram sans pré-amplificateur RIAA incorporé.
2-2
Data Link
Front view
PU-Arm
i : |
: |
RG eects a} —4
LG Fad
— |
_L Black shield
Blue Green
Red White Red White Black
G Blue R (GL ROL
To swingchassis
DATA LRM ; LM Yur
Green| Blue
Yellow Shield Red White
So
To RIAA Amp.
L Shield
: Blue Gre
Red White Req’ White Shield
l R iGL RGL
To swingchassis
DATA GR RGE L
Yellow Black _| Black | Black shield
Red White
To signalplug
2-2
Pins on uC 1101
</> output 23
</> input 13
N\
Vv output 24
N\
vy input 20
Activate
with 17cm
record
Time H= 01sec.
Pins on pC 1IC1
</> output 23
</> input 13
17cm input 12
N\
Vv output 24
AN
Vv input 20
Bang &Olufsen
ACTIVITY DIAGRAM
Activate (ST BY)
with 30cm
record v \
Fen Pui in PU down *PU up PU out
Time 4 = 01sec -——— i —— HH
ple Sarees See Tset 075 sec 08sec Tsec
J Oot es pees
eee ee ane (i
T BY.
pay (S BY.)
PU. in PU. down *PU. up PU. out
—— -——4
22 Sel. 0.6 sec. 0.6 sec. 2 sec.
j
2|
is
See
Sete
eee
ee
1]
2]
|
2|
Ua
oe
Se
are
*PU. up from automatic lowering point.
The figure indications, e.g. 1., 2., 3., is the order in
which the level changes in question take place.
PCB4, RIAA AMPLIFIER
.
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Bang & Olufsen Beogram 3000 Specifications

General

Brand	Bang & Olufsen
Model	Beogram 3000
Category	Turntable
Language	English