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CX-JN55 SERVICE MANUAL Ver 1.1 2004.08 AEP Model UK Model · CX-JN55 is the amplifier, CD player, tape deck and tuner section in JAX-N55. Model Name Using Similar Mechanism CD Section CD Mechanism Type Base Unit Name Optical Pick-up Name Tape deck Section Model Name Using Similar Mechanism Tape Transport Mechanism Type CX-JN77 CDM74-F1BD81 BU-F1BD81A KSM-215DCP CX-JN30 CWM43FF13 SPECIFICATIONS Amplifier section DIN power output (rated): 52 + 52 watts (6 ohms at 1 kHz, DIN) Continuous RMS power output (reference): 65 + 65 watts (6 ohms at 1 kHz, 10% THD) Music power output (reference): 130 + 130 watts (6 ohms at 1 kHz, 10% THD) Inputs VIDEO/MD IN (phono jacks): voltage 450/250 mV, impedance 47 kilohms Outputs PHONES (stereo mini jack): accepts headphones of 8 ohms or more SPEAKER: accepts impedance of 6 to 16 ohms CD player section System Laser Compact disc and digital audio system Semiconductor laser (=780 nm) Emission duration: continuous 2 Hz - 20 kHz (±0.5 dB) More than 90 dB More than 90 dB Tu ner section FM stereo, FM/AM superheterodyne tuner FM tuner section Tuning range Russian models Frequency response Signal-to-noise ratio Dynamic range Other models Antenna Antenna terminals Intermediate frequency AM tuner section Tuning range Tap e deck section Recording system Frequency response 4-track 2-channel, stereo 50 - 13,000 Hz (±3 dB), using Sony TYPE I cassettes 65.0 - 74.0 MHz (There is no stereo effect. 10-kHz step) 87.5 - 108.0 MHz (50-kHz step) 87.5 - 108.0 MHz (50-kHz step) FM lead antenna 75 ohms unbalanced 10.7 MHz 531 - 1,602 kHz (with the tuning interval set at 9 kHz) AM loop antenna External antenna terminal 450 kHz Antenna Antenna terminals Intermediate frequency ­ Continued on next page ­ COMPACT DISC DECK RECEIVER 9-877-791-02 2004H05-1 © 2004.08 Sony Corporation Personal Audio Company Published by Sony Engineering Corporation CX-JN55 General Power requirements Power consumption 230 V AC , 50/60 Hz 110 watts 0.25 watts (at the Power Saving Mode) Notes on chip component replacement · Never reuse a disconnected chip component. · Notice that the minus side of a tantalum capacitor may be damaged by heat. Flexible Circuit Board Repairing · Keep the temperature of the soldering iron around 270 °C during repairing. · Do not touch the soldering iron on the same conductor of the circuit board (within 3 times). · Be careful not to apply force on the conductor when soldering or unsoldering. CAUTION Use of controls or adjustments or performance of procedures other than those specified herein may result in hazardous radiation exposure. Dimensions (w/h/d) incl. projecting parts and controls Amplifier/Tuner/Tape/CD section: Approx. 280 Ч 325 Ч 425 mm Mass Approx. 9.9 kg Design and specifications are subject to change without notice. This appliance is classified as a CLASS 1 LASER product. The CLASS 1 LASER PRODUCT MARKING is located on the rear exterior. UNLEADED SOLDER Boards requiring use of unleaded solder are printed wit