Mains Voltage - Fuses; Connections; Output Level; De-Emphasis - THORENS TD 146 Owner's Manual

Mains voltage - Fuses

Check that the receiver is set to the correct mains voltage -- see figure on page 7.
230 volts, 50 Hz:
The receiver is set to 230 V +/- 10%, 50 Hz, at the factory and fitted with a 200 mA mains fuse for this voltage.
115 volts, 60 Hz
Set the mains voltage selector for 115 V (use a screwdriver).
Remove the 200 mA fuse and insert a 400 mA fuse. Open the fuse holder with a screwdriver or a coin.
Fuses:
230 V, 50 Hz: 200 mA, slow-blow, 5 x 20 mm.
115 V, 60 Hz: 400 mA, slow-blow, 5 x 20 mm.

Connections:

The illustration on page 15 shows alternative connections for the mains supply.
Connections
(A) Antenna 75 ohm:
FM antenna with 75 ohms down lead should be connected direct to this input.
FM antenna with 300 ohms down lead should be connected via an antenna transformer 300/75 ohms. A 75 ohms antenna plug with an
antenna transformer will be supplied with receivers intended for the US market.
(B) Variable Output:
For connecting to a control amplifier/amplifier. Output voltage 0 to 1.5 V/470 ohms.
Layout for connections, see pages 14 and 15.

Output Level

The signal level from the Variable Output can be controlled by means of the Output Level control. The level can be adjusted to suit the input
requirements of the following amplifiers.

De-emphasis

The selecter marked De-emphasis at the back of the receiver has three positions:
25 microseconds: For receiving Dolbyized* FM programs.
50 microseconds: For receiving FM transmissions with 50 microseconds pre-emphasis (European standard).
75 microseconds: For receiving FM transmissions with 75 microseconds pre-emphasis (US standard).
* "Dolby" and the double-D-symbol are trademarks of Dolby Laboratories Licensing Corporation.