Sharp 21FL94 Service Manual - Page 1

21FL94 SERVICE MANUAL S64T921FL94// COLOR TELEVISION Chassis No. GA-4 MODEL 21FL94 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. CONTENTS Page » ELECTRICAL SPECIFICATIONS ...1 » IMPORTANT SERVICE SAFETY PRECAUTION 2 » LOCATION OF USER'S CONTROL ...4 » INSTALLATION AND SERVICE INSTRUCTIONS 5 » SERVICE MODE ...6 » ADJUSTMENT METHOD ...12 » WAVEFORMS ...25 » CHASSIS LAYOUT ...26 » BLOCK DIAGRAM ...27 » DESCRIPTION OF SCHEMATIC DIAGRAM 31 » SCHEMATIC DIAGRAMS ...32 » PRINTED WIRING BOARD ASSEMBLIES 36 » REPLACEMENT PARTS LIST ...40 » PACKING OF THE SET ...46 ELECTRICAL SPECIFICATIONS POWER INPUT AC 110~220 V, 50/60 Hz POWER RATING 90W PICTURE SIZE 1,239 cm2 (192sq inch) CONVERGENCE Magnetic SWEEP DEFLECTION Magnetic FOCUS QFP/UNI-B1 Electrostatic INTERMEDIATE FREQUENCIES Picture IF Carrier Frequency 45.75 MHz Sound IF Carrier Frequency 41.25 MHz Color Sub-Carrier Frequency 42.17 MHz (Nominal) AUDIO POWER OUTPUT RATING 4.0 W(RMS) x 2pcs SPEAKER SIZE 12 x 5 cm, 2pcs VOICE COIL IMPEDANCE 16 ohm at 400 Hz ANTENNA INPUT IMPEDANCE VHF/UHF 75 ohm Unbalanced TUNING RANGES VHF-Channels 2 thru 13 UHF-Channels 14 thru 69 CATV Channels 1 thru 125 (EIA, Channel Plan U.S.A.) Specifications are subject to change without prior notice. SHARP CORPORATION This document has been published to be used for after sales service only. The contents are subject to change without notice.