TOSHIBA 21A3 free download

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SCHEMATIC DIAGRAM MODEL : 21A3E / 21A3TR 21A3M / 21A3MJ 4. Voltages read with DIGITAL MULTI-METER from point indicated to chassing ground, using a color bar signal with all controls at normal, line voltage 220 volts. 5. Waveforms are taken receiving color bar signal with enough sensitivity. 6. Voltage reading shown are nominal values and may vary ±20% except H.V. WARNING: BEFORE SERVICING THIS CHASSIS, READ THE "X-RAY RADIATION PRECAUTION", "SAFETY PRECAUTION" AND "PRODUCT SAFETY NOTICE" ON THE MANUAL FOR THIS MODEL. CAUTION: The international hazard symbols "*" in the schematic diagram and the parts list designate components which have special characteristics important for safety and should be replaced only with types identical to those in the original circuit or specified in the parts list. The mounting position of replacements is to be identical with originals. Before replacing any of these components, read carefully the PRODUCT SAFETY NOTICE on the MANUAL for this model. Do not degrade the safety of the receiver through improper servicing. NOTE: 1. RESISTOR Resistance is shown in ohm [K = 1.000, M = 1.000.000]. All resistors are 1/6W and 5% tolerance carbon resistor, unless otherwise noted as the following marks. 1/2R = Metal or Metal oxide of 1/2 watt 1/2S = Carbon compsistion of 1/2 watt 1RF = Fuse resistor of 1 watt 10W = Cement of 10 watt K = ±10% G = ±2% F = ±1% 2. CAPACITOR Unless otherwise noted in schematic, all capacitor values less than 1 are expressed in ?F, and the values more than 1 in pF. All capacitors are ceramic 50V, unless otherwise noted as the following marks. Electolytic capacitor Mylar capacitor 3. The parts indicated with " * " have special characteristics, and should be replaced with identical parts only. SERVICE MODE GENERAL ADJUSTMENTS 1. ENTERING TO SERVICE MODE 1) Press o button once on Remote Control. 2) Press o button again to keep pressing. 3) While pressing the o button, press MENU button on TV set. Item Data S (Service mode display) 2. DISPLAYING THE ADJUSTMENT MENU 1) Press MENU button on TV. Service mode Press Press Adjustment mode Item S Data SPECIFIC INFORMATIONS 3. KEY FUNCTION IN THE SERVICE MODE The following key entry during display of adjustment menu provides special functions. A single horizontal line ON/OFF: Test signal selection : Selection of the adjustment items : Change of the data value : Adjustment menu mode ON/OFF : Initialization of the memory (QA02) : Reset the count of operating protect circuit to "00": "RCUT" selection : "GCUT" selection : "BCUT" selection : "CNTX" (or "SCNT") selection : "COLC" selection : "TNTC" selection : Test audio signal ON/OFF (1kHz) : Self diagnostic display ON/OFF : - / - - button (on Remote) or a button (on TV) a button (on Remote) Channel s/t (on TV or Remote) Volume ; +/­ (on TV or Remote) MENU button (on TV) CALL + Channel button on TV (s) CALL + Channel button on TV (t) 1 button 2 button 3 button 4 button 5 button Color thickness correction 6 button