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Insert the output lead of the power supply into the recep-
tacle (14) at the rear panel of the TD 550. By means of the
supplied power cord connect the IEC input at power sup-
ply with mains wall outlet.
ATTENTION: Never try to feed 230V mains voltage
into the receptacle (14), as this will denitely de-
stroy the electronic circuitry inside.
Press Power button (1) whereupon the blue-illuminated
Thorens-logo (3) in the centre of the front panel and one of
the speed-LEDs will light up.
The brightness of the Thorens-logo and LEDs can be
changed at the dimmer potentiometer dubbed Am-
bience (12) at the rear panel with the help of a small
bladed screwdriver (trimmer).
Proceed by inserting the supplied RCA interconnects (or
any other suitable RCA/XLR interconnects of your choice)
into the signal output jacks at the rear panel.
Connect the leads with the phono input at your amplier.
The TD 550 features balanced XLR-connectors (9+10) as
well as unbalanced RCA-connectors (6+7).
Note: nearly all vinyl records have been recorded ac-
cording to the international RIAA standards and rules.
For this reason they need a dedicated phono amplier
stage which is to equalize and amplify the usually low-
level signals coming from the pickup cartridge. If the
TD 550 is directly connected to a high-level input of the
amplier, the result will be a weak and distorted rendi-
tion of the music.
If you happen to own a preamplier/amplier with integrat-
ed phono stage which also features balanced (XLR) inputs,
you should in any case use this high-grade connector for
sonic reasons. In case your amplier is not equipped with a
phono stage or with one of rather mediocre quality, we can
highly recommend to acquire the Thorens TEP 302.
Take the dustcover and carefully insert it into the hinges by
the marked areas.
Connecting the record player
30