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SHARP SERVICE MANUAL S90M621 N52E11 21 SYSTEM COLOUR TELEVISION Chassis No. 2IA- M MODEL 21N52-E1 In the interests of user-safety (Required by safety regulations in some countries ) the set should be restored to its original condition and only parts identical to those specified should be used. ELECTRICAL SPECIFICATIONS 110-240VAC 50/60Hz (Auto) Power Consumption ... 107w Convergence ... Self Converging System Focus ... Bi-Potential, Uni-Potential Electrostatic Sweep Deflection ... Magnetic Intermediate Frequencies Picture IF Carrier ... 38.9M Hz Sound IF Carrier 6.5MHz ... 32.4MHz 6.0MHz ... . 32.9MHz 5.5MHz ... . 33.4MHz 4.5MHz ... . 34.4MHz Colour Sub-Carrier PAL/NTSC ... 34.47M Hz 34.494/34.65MHz SECAM ... NTSC ... 35.32MHz Audio Power Output Rating ... 2.5W x 2 (Max.) Speaker Size ... . 8cm x 4cm Oval x 2 pcs Voice Coil Impedance ... 8 ohms at 400 Hz Power Input ... Aerial Input Impedance ,..., 75 ohm Unbalanced Receiving Channels PAL-B/G, SECAM-B/G VHF . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .. E2 thru E l 2 UHF . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 21 thru 69 CATV ...,... S1 thru S3, M1 thru M10 U1 thru U10 PAL-D/K, SECAM-D/K VHF . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . R1 thru R12 UHF . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 21 thru 69 PAL-l B thru J VHF . . . . . . . . . . . . . . . . . . . . . (IRELAND): UHF ... (U.K., H.K.): 21 thru 69 NTSC-M VHF . . . . . . . . . . . . . . . . . . . . . . . . . . . (US): 2 thru 13 (JAPAN): 1 thru 12 UHF . . . . . . . . . . . . . . . . . . . . . . . . . . . (US): 14 thru 83 (JAPAN): 13 thru 62 CATV ... A-6 thru A-1, A thru W, AA Receiving Frequency VHF . . . . . . . . . . . . . . . . . . . . . . . . . 48.25 thru 301.25 MHz UHF . . . . . . . . . . . . . . . . . . . . . . . . . 471.25 thru 885.25 MHz Specifications are subject to change without prior notice. WARNING The chassis in this receiver is partially hot. Use an isolation transformer between the line cord plug and power receptacle, when servicing this chassis. To prevent electric shock, do not remove cover. No user - serviceable parts inside. Refer servicing to qualified service personnel. SHARP CORPORATION SCHEMATIC DIAGRAM: SUB CIRCUIT 29 I CAUTION: This circuit diagram is original one, therefore there may be a slight difference from yours. I 30 SCHEMATIC DIAGRAM: MAIN CIRCUIT I CAUTIO