Panasonic TX-14B4TC / TX-14B4TF / TC-14B4RC / TC-14B4B / TC-14B4RF Service Manual ▷ View online
Description
Cct Ref
Parts Number
Description
Cct Ref
Parts Number
CERAMIC
C153
CBXF1H104Z
50V
100nF
ELECT
C154
ECEA1H479
50V
4.7µF
ELECT
C155
ECEA1H479
50V
4.7µF
ELECT
C156
ECEA1H479
50V
4.7µF
ELECT
C315
ECEA2A470
100V
47pF
ELECT
C502
ECEA1H220
50V
22pF
ELECT
C522
ECEA1H479
50V
4.7µF
CERAMIC
C602
ECCR1H223J
50V
22nF
FILM
C801
CL1UC3474M
250V
470nF
CAPACITO
C812
CH1BFE472M
4kV
4.7nF
14
15
NOTES
SCHEMATIC DIAGRAMS FOR MODELS
TX-14B4TC/14B4TF
TX-14B4RC/B
TX-14B4RF/B
TX-14B4RC
(Z-185 CHASSIS)
NOTE
1. RESISTOR
All resistors are carbon ¼W resistor, unless marked otherwise.
Unit of resistance is OHM (
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
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
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.
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.
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.
only manufacturer's specified parts.
16
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