Siemens 2000 Service Manual

Classes of magnetic sound operation
The uni ve rsal amplifier per mits any of th e fo llow ing c la sses of r eco rding :
r;:~r& ~
// (//
~ Erasure ~
Recordm
~&'2~
, Prerious
~ ~ef~'?~ng
The diagram appli es to all magnetic track s.
Magnetic recording
General magnetic recording in one
operation 1 erase head enabled) .
Erasure of section of an existing
record1ng
( erase head enabled).
New section added to existing
recordi n g; ol d recordi ng is co mp letely
erased ( erase head enabled).
Rerecording or mixing of existing
recording; old recording remains in
background.
( Tr ick circ u1t; er ase head disab led)
All tr ansitions from or to erasure ,
mixing and rerecor dmg are infinitely
adjustab le.
1. Set fun ction switch h (Fig. 2 a) of amplifier on red 0 . Press button d (Fig. 3 a) .
2.
Turn tone control cd (Fig. 2 a) to midpo si tion (index points to 5- 6 ).
3. Tu rn r eco rd control f (Fig. 3 b) clockwise as far as it will go ( Gl and
switch on
erase head (switch e Fig. 3 b C ).
4. Adjust volume c ontrol for pickup e or microphone f (Fig. L: a) according to
lou dest passage of pe rformance so that bright segments of magic-fan indi-
cator c (Fig. 3 a) come together with a clearance of approx . 1 mm .
Rec
ording s of phonograph rec ords or live rec ording s using the mic rophone
may be made individually or mixed. For live recordings, switch off loud-
s peaker to prevent feedback. The recording c an be monitored with the aid
of a set
of high-i mpedance headphones that may be connected to the
output terminal of he loudspeaker.
5. On c ompletion of thes e preparations , thread film.
6. Switch on proje ctor. To begin recording, pres s button d of recording stage .
The
renewed illumination of th e magic-fan indic ator de note s that rec ording
may begin
15

Siemens 2000 Specifications

General

Brand	Siemens
Model	2000
Category	Projector
Language	English