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All manuals and user guides at all-guides.com ORDER No. PCZ0804036CE Service Manual Colour LCD Television TX-20LA80F TX-20LA80FS GLP21L Chassis Specifications Power Source: 220-240V AC, 50Hz Terminals: AV1 IN Video (21 pin) 1V p-p 75Ω Power Consumption: Audio (21 pin) 500mV rms 10kΩ...
All manuals and user guides at all-guides.com Contents SAFETY PRECAUTIONS ........... 3 SELF-CHECK ............. 8 GENERAL GUIDE LINES........3 ADJUSTMENT METHOD..........9 TOUCH – CURRENT CHECK....... 3 BLOCK DIAGRAMS..........10 PREVENTION OF ELECTROSTATIC DISCHARGE PARTS LOCATION........... 13 (ESD) TO ELECTROSTATICALLY SENSITIVE (ES) REPLACEMENT PARTS LIST........
All manuals and user guides at all-guides.com Safety Precautions General Guide Lines When servicing, observe the original lead dress. If a short circuit is found, replace all parts which have been overheated or damaged by the short circuit. After servicing, see to it that all the protective devices such as insulation barriers, insulation papers shields are properly installed.
All manuals and user guides at all-guides.com Prevention of Electrostatic Discharge (ESD) to Electrostatically Sensitive (ES) Devices Some semiconductor (solid state) devices can be damaged easily by static electricity. Such components commonly are called Electrostatically Sensitive (ES) Devices. Examples of typical ES devices are integrated circuits and some field-effect transistors and semiconductor "chip"...
All manuals and user guides at all-guides.com About lead free solder (PbF) Note: Lead is listed as (Pb) in the periodic table of elements. In the information below, Pb will refer to Lead solder, and PbF will refer to Lead Free Solder. The Lead Free Solder used in our manufacturing process and discussed below is (Sn+Ag+Cu).
All manuals and user guides at all-guides.com Service Hints How to remove the Pedestal assembly Lay the main unit face down. (see Fig.5) Fig.5 Remove the 4 fixing screws and the pedestal assembly. (see Fig.6) SCREWS SCREWS Fig.6 How to remove the backcover Remove the 10 fixing screws.
All manuals and user guides at all-guides.com Chassis Board Layout KEY CONTROL P-BOARD A-BOARD V-BOARD Board Name Function A-Board Main Board A-Board Tuner A-Board AV2 Terminal Key Control Key Control P-Board Mains Input, Power Switch P-Board Power Supply V-Board Remote Receiver, LED IR Setting Inspection Voltage Confirmation Confirm the following voltages:...
Self-check is used to automatically check the bus lines and hexadecimal code of the TV set. To enter Self-Check mode, keep pressing the STATUS button on the remote control and press the down (-/v) button on the TV set. To exit Self Check, switch off the TV set at the power button. Panasonic GLP21L TV V2.06 TX-20LA80F Self Check Complete...
All manuals and user guides at all-guides.com Adjustment Method How to enter Service 1 • Set the Bass to maximum position, set the Treble to minimum position then keep pressing the INDEX button on the remote control and press the down button (-/v) on the TV set, this will place the TV set into the Service Mode 1. Key Command •...
All manuals and user guides at all-guides.com Parts Location NOTE: The numbers on the exploded view below refer to the exploded view section of the Replacement Parts List.
All manuals and user guides at all-guides.com Schematic Diagrams IMPORTANT SAFETY NOTICE Components identified by mark have special characteristics important for safety. When replacing any of these components, use only manufacturers' specified parts. NOTE RESISTOR All resistors are carbon ¼W resistor, unless marked otherwise. Unit of resistance is OHM (Ω) (k=1,000, M=1,000,000) CAPACITORS All capacitors are ceramic 50V unless marked otherwise.