PANASONIC ch.GP3 TC-21FJ30P free download

File name PANASONIC ch.GP3 TC-21FJ30P.pdf

ORDER NO. MTV0401329C3 Colour Television TC-21FJ30P GP3 Chassis Specifications Power Source : Power Consumption : Aerial Impedance : AC AUTO 110-240V, 50 / 60 Hz 90W 75 unbalanced Coaxial type Receiving System : Receiving Channels : VHF UHF CATV Video / Terminals : RAV In Video In 1 Vp-p 75 Audio In Approx. 400mVrms Monitor Out Video Out 1 Vp-p 75 Audio Out Approx. 400mVrms High Voltage : 27.5kV ± 1.5kV at zero beam current Picture Tube : A51LXR195X 51cm (21 inches) Measured diagonally, 2-13 (USA STANDARD) 14-69 (USA STANDARD) 1-125 (USA STANDARD) NTSC Mass : Audio Output : Dimensions : 90 ° deflection 16 W Height : 472 mm Width : 648 mm Depth : 488 mm 24.0 kg (Net Wt.) Specifications are subject to change without notice. Mass and dimensions shown are approximate. © 2004 Matsushita Electric Industrial Co., Ltd. All rights reserved. Unauthorized copying and distribution is a violation of law. TC-21FJ30P CONTENTS Page 1 Safety Precautions 1.1. General Guide Lines 1.2. Leakage Current Cold Check 1.3. Leakage Current Hot Check (Fig. 1) 1.4. X-Radiation 1.5. GP3 Chassis Block Diagram 2 Service Hints 2.1. Service Position for E-Board 2.2. Factory Mode Adjustment 2.3. Adjustment for White Balance 2.4. Adjustment for CRT CUT OFF 3 3 3 3 3 4 5 5 5 6 6 2.5. Adjustment Procedure 2.6. PAL Colour 2.7. Adjustment 3 Conductor Views 4 Schematic Diagram 4.1. A Board 4.2. L Board 4.3. YUV Board 5 Parts Locations 6 Replacement Parts List 6.1. Replacement Parts List Page 7 8 8 12 13 15 20 22 24 25 26 2 TC-21FJ30P 1 Safety Precautions 1.1. General Guide Lines 1. It is advisable to insert an isolation transformer in the AC supply before servicing this hot chassis. 2. When servicing, observe the original lead dress, especially the lead dress in the high voltage circuits. If a short circuit is found, replace all parts which have been overheated or damaged by the short circuit. 3. After servicing, see to it that all the protective devices such as insulation barriers, insulation papers, shields and isolation R-C combinations, are properly installed. 4. When the receiver is not to be used for a long period of time, unplug the power cord from the AC cord outlet. 5. Potential, as high as 26.5kV is present when this receiver is in operation. Operation of the receiver without the rear cover involves the danger of a shock hazard from the receiver power supply. Servicing should not be attempted byanyone who is not thoroughly familiar with the precautions necessary when working on high voltage equipment. Always discharge the anode of the picture tube to the receiver chassis before handling the tube. After servicing make the following leakagecurrent checks to prevent the customer from being exposed to shock hazards. 1.2. Leakage Current Cold Check 1. Unplug the AC cord and connect a jumper between the two prongs on the plug. 2. Turn on the receiver's power switch. Measure the resistance value, with an ohmmeter, between the jumper AC plug and each exposed metallic