Sony ICFS79, ICFS79L, ICFS79V free download

File name Sony-ICFS79_79L_79V rec.pdf

ICF-S79/S79L/S79V SERVICE MANUAL Ver 1.2 2002.02 US Model ICF-S79V AEP Model ICF-S79/S79L UK Model ICF-S79L Photo: ICF-S79V (Original Type) SPECIFICATIONS Frequency range: Model for North and South America Band ICF-S79V Channel step FM 87.5 ­ 108 MHz 0.1 MHz AM 530 ­ 1,710 kHz 10 kHz TV 2 ­ 13 ch -- WEATHER 1 ­ 5 ch -- Model for other countries Band ICF-S79 ICF-S79L FM 87.5 ­ 108 MHz 87.5 ­ 108 MHz AM(MW) 531 ­ 1,602 kHz 531 ­ 1,602 kHz LW -- 153 ­ 279 kHz MODEL IDENTIFICATION There are two types of ICF-S79V. Please look at the mark of set shown below. Channel Step 0.05 MHz* 9 kHz 9 kHz no mark : Original Type Liv : Liv Type * The frequency display is raised or lowered by steps of 0.1 MHz. For example, both 88.00 MHz and 88.05 MHz will be displayed as "88.0 MHz." Time display: Model for North and South America: 12-hour system Model for other countries: 24-hour system Speaker: 7.7 cm (3 1/8 inches), 8 ohms Power output: 220 mW (at 10% harmonic distortion) Power requirements: 4.5 V DC, three size C (R14) batteries Dimensions: Approx. 143.5 x 139 x 67 mm (w/h/d) (Approx. 5 3/4 x 5 1/2 x 2 3/4 inches) incl. projecting parts and controls Mass: Approx. 523 g (1lb 2oz) incl. batteries Supplied accessories: Suction cup (1), Strap (1)* *North and South American model only 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. ICF-S79 FM/AM SYNTHESIZED RADIO ICF-S79L Design and specifications are subject to change without notice. FM/MW/LW SYNTHESIZED RADIO ICF-S79V TV/WEATHER/FM/AM SYNTHESIZED RADIO 9-925-738-12 2002B0500-1 C 2002.02 Sony Corporation Personal Audio Company Published by Sony Engineering Corporation This section is extracted from instruction manual. SECTION 1 GENERAL ­2­ ­3­ SECTION 2 DISASSEMBLY Note: Follow the disassembly procedure in the numerical order given. REAR CABINET 5 BATT lead (red) 3 two claws 5 antenna lead 4 rear cabinet 2 six screws (BTP 3 Ч 25) 1 battery case lid 5 BATT lead (white) ­4­ SECTION 3 ELECTRICAL ADJUSTMENTS 0dB=1 µV [FM/TV Section] Setting: BAND switch: FM1 or TV FM RF SSG 0.01µF set level meter + ­ FM TRACKING ADJUSTMENT Adjust for a maximum reading on level meter. L6 CT4 87.5 MHz (TV 2 ch (59.75 MHz)) 108.0 MHz FM FREQUENCY COVERAGE ADJUSTMENT Adjust for a reading on digital voltmeter. L8 Confirm 87.5 MHz (TV 2 ch) 108.0 MHz 2.3 ± 0.1 V (1.0 ± 0.1 V) 8.5 ± 0.5 V (12.5 ± 0.5 V) Adjustment and Connection Location: Note: Not use the FM RF signal generator in this adjustment. [MAIN BOARD] (Component Side) ( ): ICF-S79V T2 AM IF FM antenna ground (JW17) T1 TV IF (ICF-S79V only) L8 FM FREQUENCY COVERAGE L2 TV FREQUENCY COVERAGE (ICF-S79V only) CT1 IC1 ± 22.5 kHz frequency speaker terminal deviation by 400 Hz FM lead wire antenna terminal signal Output level: as low as possible ( ICF-S79L only ): ICF-S79V [AM (LW/MW) Section] Setting: BAND switch: AM (MW) or LW Put the lead-wire