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THORENS TD 309 - Turntable Performance Adjustments; Suspension Foot Adjustment; Platter Speed Calibration

THORENS TD 309
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The suspension in each sub-chassis foot can be
adjusted from above with the help of a 5-mm hex key
(➔ Abb. 6). The inner cylinder of each foot should pro-
trude by 2 mm at position X. ➔ Fig. 7
The suspension system is factory-adjusted. It should
be readjusted if the weight of the turntable is altered
(e.g. through the use of stabilisers or heavy platter
mats) or if the supporting surface is not perfectly lev-
el.
The platter speed can be adjusted by turning the ad-
justment screw to the left or right of the speed switch
(for 33⅓ and 45 rpm, respectively). ➔ Fig. 7
The platter speeds are factory-adjusted. Any readjust-
ment of the speeds should be checked with the help
of a test record or a strobe disc.
Please also refer to “Belt Tension” ➔ Page 25
27
Turntable adjustments
Fig. 6
Fig. 7
X
33⅓
45
THORENS TD 309 - Turntable Performance Adjustments; Suspension Foot Adjustment; Platter Speed Calibration