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CFS-B5LMK2
SERVICE MANUAL
Ver 1.0 1999. 05
East European Model
Model Name Using Similar Mechanism Tape Transport Mechanism Type
NEW MF-B5MK2-117
SPECIFICATIONS
Frequency range FM: 65.0 - 108 MHz MW: 531 - 1,602 kHz LW: 153 - 279 kHz SW: 5.95 - 18 MHz Aerials FM/SW: Telescopic antenna MW/LW: Built-in ferrite bar Recording system 4-track, 2-channel stereo Frequency response 70 - 10,000 Hz Speakers Full range: 10 cm (4 inches) dia., 2.8 ohms cone type × 2 Output Headphones jack (stereo minijack), for 16 - 68 ohms impedance headphones Maximum power output 2.5 W + 2.5 W Battery life FM recording Sony R20P: approx. 16 hours Sony LR20 alkaline: approx. 36 hours Playback Sony R20P: approx. 8 hours Sony LR20 alkaline: approx. 21 hours Power requirements 230 V AC, 50 Hz 9 V DC, six R20 (size D) batteries Power consumption AC 14 W Dimensions Approx. 500 × 155 × 164 mm (w/h/d) (19 3/4 × 6 1/8 × 6 1/2 inches) incl. projecting parts and controls, not incl. handle Mass Approx. 2.7 kg (5 lb. 15 oz.) not incl. batteries Supplied accessory Mains lead (1) Design and specifications are subject to change without notice.
RADIO CASSETTE-CORDER
MICROFILM
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CFS-B5LMK2
5-4. SCHEMATIC DIAGRAM -- TUNER SECTION -- · Refer to page 13 for IC Block Diagram.
(Page 20)
Note: · All capacitors are in µF unless otherwise noted. pF: µµF 50 WV or less are not indicated except for electrolytics and tantalums. · All resistors are in and 1/4 W or less unless otherwise specified. ¢ · : internal component. · C : panel designation. · U : B+ Line. · H : adjustment for repair. · Power voltage is dc 9 V and fed with regulated dc power supply from battery terminal.
· Voltage is dc with respect to ground under no-signal (detuned) condition. no mark : FM ( ) : MW/LW, SW · Voltages are taken with a VOM (Input impedance 10 M). Voltage variations may be noted due to normal production tolerances. · Signal path. F : FM/SW f : MW/LW
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CFS-B5LMK2
5-6. SCHEMATIC DIAGRAM -- MAIN SECTION --
(Page 16)
· Waveform (MODE:REC)
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35Vp-p 15mS
Note: · All capacitors are in µF unless otherwise noted. pF: µµF 50 WV or less are not indicated except for electrolytics and tantalums. · C : panel designation. Note: The components identified by mark ! or dotted line with mark ! are critical for safety. Replace only with part number specified.
T301
· U : B+ Line. · Total current is measured with no cassette installed. · Power voltage is dc 9 V and fed with regulated dc power supply from battery terminal. · Voltage and waveforms are dc with respect to ground under no-signal (detuned) conditions. no mark : FM < > : PB << >> : REC
· Voltages are taken with a VOM (Input impedance 10 M). Voltage variations may be noted due to normal production tolerances. · Waveforms are taken with a oscilloscope. Voltage variations may be noted due to normal production tolerances. · Circled numbers refer to waveforms. · Signal path. F : FM E : PB a : REC
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