Instruction manual lecson systems limited burrel road st.Ives huntingdon cambridgeshire england pe17 4le telephone 0480 64124 telex 32562 lecson g.
- 1 - 1. Introduction your lecson sfm2 tuner is a superbly engineered instrument designed to give the best quality reproduction of stereophonic vhf/fm radio programmes. The sfm2 has been elegantly designed to match the existing lecson range of hi-fi equipment and to blend aesthetically with domestic...
- 2 - earth earth 2 2 audio output remote output rear view of plug figure 1 note: if connection is made to the accessory socket in error, no damage will result but only one channel will be connected to the pre- amplifier. The accessory output can be used to drive a centre-zero tuning meter after rem...
- 3 - 4. Control functions fig 3 shows the top face of the sfm2, and the control functions are described below. 4.1. Indicator lamps . 4.1.1. Tuning scale . The tuning scale consists of a line array of light emitting diodes. Usually one of these diodes is lit to indicate the tuning frequency selecte...
- 4 - 4.2 controls 4.2.1. Power control switch . This switch controls mains power to all the circuits in the tuner when turned on. When turned off it disconnects all mains power from all tuner circuits. 4.2.2. Preset switch . In the normal position, this switch enables the manual tuning control knob...
- 5 - 5. Technical specifications tuning range: 88 to 108 mhz aerial inputs: 72 ohm unbalanced, 300 ohm balanced sensitivity: 1.2uv for 30 db quieting ihf if rejection: >85 db capture ratio: 1.2 db frequency response: 20hz to 15khz + 1 db t.H.D. (mono): 0.1% (typically) signal to noise ratio (mono):...
