Pioneer sx 440 service manual

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PIONEE.R FEATURES OF SX-44O OSENSITIVE FM CIRCUIT A high performance transistor is used in RF amplifier for excellent sensitivity. No distortion or cross modulation will be caused by high input power. OBUILT.IN MULTIPLEX CIRCUIT Provides full-frequency response and a good separation between channels for excellent stereo effect. OAUTOMATIC FM MULTIPLEX SIGNAL INDICATOR A lamp lights automatically when receiver is tuned to an FM station transmitting stereo multiplex signals. O EASY-TO.READ TUNING INDICATOR The clear, easy-to'read Meter permits quick station selection' OLOUDNESS CONTOUR CIRCUIT Preserves musical balance and provides full dynamic range of reproduction, even at very low volume control settings. OINDEPENDENT TONE CONTROLS Separate bass and treble controls permit adjustment of tonal qualities to suit room acoustics and individual taste. OFULL COMPLEMENT OF INPUTS Stereo inputs are provided on the rear panel for record player with a magnetic, ceramic, or crystal cartridge; there are also inputs for a tape recorder or tape deck; plus auxiliary input for TV sound or other sound source. OTAPE RECORDING OUTPUT Permits making stereo or monaural tape recording of any program material (AM, FM, FM stereo multiplex, or record) while the material is being played. OSTEREO HEADPHONE JACK Permits private listening through a stereo headphone without disturbing other people. Located on the front panel for easy access. O DUAL.CHANNEL HIGH-FIDELITY AUDIO POWER AMPLIFIER High-efficiency power transistors are employed in the pushpull complementary circuit for each audio amplifier channel for full fidelity frequency response. LINE VOLTAGE SELECTION AND FUSE Switching Line Voltage Setting and Fuse ln order to remove the fuse, turn the fuse cap located on the line voltage selector switch in the direction indicated by an arrow. Then remove the fuse plug from the unit. Put the fuse plug back so that the proper line voltage marking can be seen through the cut in the edge of the plug. Whenar'er the set position of the selector switch is changed, check the rating of the fuse. A O.S-ampere fuse is to be used for either 22OV or 240V operation and a 1-ampere fuse for any of 1 lOV, 117V, or 130V operation. lf the rating of the fuse is proper, install the fuse in the fuse cap. .REPLACING OF FUSE When the fuse is blown, remove the fuse cap and the fuse with a new one. replace @ -T corN Fig. 1 FUSE CAP Take off the fuse cap by turning it with a coin, in the direction indicated by the arrow.

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