Panasonic TX-15AT1 Service Manual

Also see for TX-15AT1: Operating instructions Service manual

Panasonic TX-15AT1 Service Manual Manual pdf 3 page image

SERVICING NOTICES ON CHECKING6. AVOID AN X-RAY1. KEEP THE NOTICESAs for the places which need special attentions,they are indicated with the labels or seals on thecabinet, chassis and parts. Make sure to keep theindications and notices in the operation manual.3. USE THE DESIGNATED PARTS5. TAKE CARE TO DEAL WITH THECATHODE-RAY TUBESafety is secured against an X-ray by consider-ing about the cathode-ray tube and the highvoltage peripheral circuit, etc.Therefore, when repairing the high voltage pe-ripheral circuit, use the designated parts andmake sure not modify the circuit.Repairing except indicates causes rising of highvoltage, and it emits an X-ray from the cathode-ray tube.Please include the following informations when you order parts. (Particularly the VERSION LETTER.)1. MODEL NUMBER and VERSION LETTERThe MODEL NUMBER can be found on the back of each product and the VERSION LETTER can befound at the end of the SERIAL NUMBER.2. PART NO. and DESCRIPTIONYou can find it in your SERVICE MANUAL.HOW TO ORDER PARTSInferior silicon grease can damage IC's and transistors.When replacing an IC's or transistors, use only specified silicon grease (YG6260M).Remove all old silicon before applying new silicon.IMPORTANT2. AVOID AN ELECTRIC SHOCKThere is a high voltage part inside. Avoid anelectric shock while the electric current isflowing.The parts in this equipment have the specificcharacters of incombustibility and withstandvoltage for safety. Therefore, the part which isreplaced should be used the part which hasthe same character.Especially as to the important parts for safetywhich is indicated in the circuit diagram or thetable of parts as a mark, the designatedparts must be used.4. PUT PARTS AND WIRES IN THEORIGINAL POSITION AFTERASSEMBLING OR WIRINGThere are parts which use the insulationmaterial such as a tube or tape for safety, orwhich are assembled in the condition thatthese do not contact with the printed board.The inside wiring is designed not to get closerto the pyrogenic parts and high voltage parts.Therefore, put these parts in the originalpositions.In the condition that an explosion-proof cathode-ray tube is set in this equipment, safety issecured against implosion. However, whenremoving it or serving from backward, it isdangerous to give a shock. Take enough care todeal with it.PERFORM A SAFETY CHECK AFTERSERVICING7.Confirm that the screws, parts and wiring whichwere removed in order to service are put in theoriginal positions, or whether there are theportions which are deteriorated around theserviced places serviced or not. Check theinsulation between the antenna terminal orexternal metal and the AC cord plug blades.And be sure the safety of that.(INSULATION CHECK PROCEDURE)1.2.3.4.Unplug the plug from the AC outlet.Remove the antenna terminal on TV and turnon the TV.Insulation resistance between the cord plugterminals and the eternal exposure metal[Note 2] should be more than 1M ohm byusing the 500V insulation resistance meter[Note 1].If the insulation resistance is less than 1Mohm, the inspection repair should berequired.[Note 1]If you have not the 500V insulationresistance meter, use a Tester.[Note 2]External exposure metal: Antenna terminalEarphone jackA2-1