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SCHEMATIC DIAGRAM FOR MODELS
TX—29/25A3E
(EURO-1 CHASSIS)
IMPORTANT SAFETY NOTICE
Components identified by J\ mark have special characteristics
important for safety. When replacing any of these components,
use only manufacturer's specified parts.
Notes
1.
RESISTOR
All resistors are carbon 1/8W resistor, unless marked.
Unit of resistance is OHM (Q) (K=1,000, M=1,000,000).
2.
CAPACITOR
All capacitors are ceramic 50V capacitors, unless marked, the unit of capacitance is pF unless otherwise stated.
COIL
Unit of inductance is pH, unless otherwise stated.
TEST POINT
: Test Point position
iad
EARTH SYMBOL
: Chassis Earth (Cold)
: Line Earth (Hot)
e
7
: Waveform Test Point position
5
a2
6
VOLTAGE MEASUREMENT
Voltage is measured by a DC voltmeter.
Measurement conditions are as follows:
Power source
AC 230V, 50Hz
Receiving Signal
Colour Bar signal (RF)
All customer controls
Maximum position
: Indicates the Video signal path
: Indicates the Audio signal path
=>
: Indicates the Vertical/Horizontal signal path
8.
This schematic diagram is the latest at the time of printing and is subject to change without notice.
Precautions
Do not touch the hot part, or the hot and cold parts at the same time, as you are liable to a shock hazard.
Do not short—circuit the hot and cold circuits as electrical components may be damaged.
Do not connect an instrument, such as an oscilloscope, to the hot and cold circuits simultaneously, as this may ciusse fuse failure.
Connect the earth of the instruments to the earth connection of the circuit being measured.
d
Make sure to disconnect the power plug before removing the chassis.
Remarks
1.
The Power Circuit contains a circuit area which uses a separate power supply to isolate the earth connection. Thecircuitis defined
by HOT and COLD indications in the schematic diagram. All circuits, except the Power Circuit, are COLD.
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