User manual PHILIPS GA 312

[. . . ] E Photo-electronic off-switch by means of a light-emitting diode (LED) and light-dependent resistor (LDR), which functionswithout exerting any force on the stylus tipo e Electronic touch controls for start and stop; these touch contro Is faci 1 itate gentle operation and are completely silent. In addition, this record player offers: e Automatic lift of the pick-up arm at the end of the recordo e Precise adjustment of the turntable speed with the aid of fine speed controls and stroboscopic discs. E Universal headshell to accept Super M cartridges, or other cartridges with RETMA standard mounting. [. . . ] In order to compensate for the side thrust, this record player is designed so that a well defined force equal and opposite to the side thrust can be exerted on the pick-up armo Adjust the side-thrust compensation by turning knob (j}) to the same value as that of the stylus force adjustment '2' for the GP 400 and GP 401 . For cartriges with a spherical stylus, use the black scale; for cartridge with a bi-radial stylus, use the red scale. If your amplifier does not possessuch an input, this record player must be connected to your amplifier via pre-amplifier GH 915 (optional extra, not avaliable in every country). The stroboscopic discs for the speed adjustment supplied with the apparatus servesonly for the 60Hz frequency power supply. If power supply in your residence has 50 Hz frequency, please contact your local Philips Service for the necessaryadjustments. If necessary, the speed of the turntable can be accurately adjusted with the aid of knobs (for 45 rpm) and (for 33 rpm). Start the turntable by touching start control or The disc in questionshould appear to be stationary, when viewed in mains-powered electric light of the appropriate frecuency (preferably from a fluores· cent lamp). If the disc appears to be turning anticlockwise, the corresponding knob should be turned c1ockwise, and vice versa. The possibility of adjusting the speed of the record player is also useful if vou want to play a musical instrument together with a recordo Vou may then need to adjust the pitch of the music on the record to that of your own instrument; this can be done by raising or lowering the speed of the record player with the appropriate knob; the pitch can be raised or lowered by up to a semitone in this way. Adjusting the cover hinges Thanks to the use of friction hinges, the cover can be held open in practically any position. If the cover does not remain in the desired position, vou can adjust the hinges by tightening screws Note: If Vou want to change the turntable speed while the turntable is revolving, it is necessary to touch stop control · Remove the protective cover from the cartridge or push up the stylus guard as far as it will go. ⷠRaise the pick-up arm from its rest, place it over the desired part of the record and depress end At the end of the record, the pick-up arm is lifted from the record and the turntable stops. The pick-up arm back to the arm rest and press it in the c1ip to lock it. Pick-up arm is now raised from the record, while the turntable continues to revolve. Depress en 'Y' of the rocker key when vou want to continue playing the recordo Stopping during play Raise the pick-up arm from the record Up-cartridge The Super M cartridge, with which most versions of this record player are equipped, is mounted on a universal carrier. In order to check or replace the stylus unit or the car- Hold the cartridge upside down in one hand, and take hold of the stylus unit with the thumb and index finger of the other hand. Slide the stylus unit out of the cartridge, carefuliy and in a straight line (Fig. The new stylus unit can now be slid into the cartridge, carefully and in a straight line. [. . . ] If necessary, the black wire supplied with the mounting kit can be used to make a signal earth connection to the middle tag on the carrier. For mounting cartridges other than Super M a mounting kit is supplied with the record player. The mechanism of this record player does not require any special maintenance, as it is fitted with self-Iubrificating bearings. [. . . ]