SCHEMATIC DIAGRAMS FOR MODELS
TX-28/32/36PB50D
TX-28/32/36PB50F
TX-32/36PB50F/P
(EURO-7 CHASSIS)
NOTE
1. RESISTOR
All resistors are carbon ¼W resistor, unless marked otherwise.
Unit of resistance is OHM (
Ω
) (k=1,000, M=1,000,000)
2. CAPACITORS
All capacitors are ceramic 50V unless marked otherwise.
Unit of capacitance is
µ
F unless otherwise stated.
3. COIL
Unit of inductance is
µ
H, unless otherwise stated.
4. TEST POINT
Test Point Position
5. EARTH
SYMBOL
Chassis Earth (Cold)
Line Earth (Hot)
6. VOLTAGE
MEASUREMENT
Voltage is measured by a d.c. voltmeter.
Measurement conditions are as follows:
Power source
a.c. 220V-240V, 50Hz
Receiving Signal
Colour Bar signal (RF)
All customer controls
Maximum position
7.
Indicates the Video signal path
Indicates the Audio signal path
These schematic diagrams are the latest at time of printing and are subject to change without notice.
REMARKS
a. Do not touch the hot part, or the hot and cold parts at the same time, as you are liable to a shock hazard.
b. Do not short circuit the hot and cold circuits as electrical components may be damaged.
c.
Do not connect an instrument, such as an oscilloscope, to the hot and cold circuits simultaneously as this may cause
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.
NOTE
1. The Power Supply Circuit contains a circuit area, which uses a separate power supply to isolate the earth connection.
The circuit is defined by HOT and COLD indications in the schematic diagram. All circuits, except the Power Circuit, are
COLD.
IMPORTANT SAFETY NOTICE
Components identified by
mark have special characteristics
important for safety. When replacing any of these components, use
only manufacturer's specified parts.
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Summary of Contents for TX-28PB50F
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Page 57: ...A BOARD TNPH0348 55 ...
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Page 59: ...D DOARD TNPH0349 57 ...
Page 60: ...DF BOARD TNPA1806 ...
Page 61: ...DIODES D1011 A2 D1012 A2 D3103 B2 D3104 B2 TRANSISTORS Q1003 A2 2 1 A B G BOARD TNP8EG004 58 ...
Page 62: ...L BOARD TNPA1726 59 ...
Page 63: ...H BOARD TNPA1724 60 ...
Page 65: ...62 NOTES ...
