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TC-14A12P 반도체 회로 부품 판매점

Color Television Service Manual



Panasonic 로고
Panasonic
TC-14A12P 데이터시트, 핀배열, 회로
Order DCS - AGO2002 - 003 - MS
Service Manual
Color Television
TC-14A12P
TC-20B12
BR2L chassis
Specifications
TELEVISION
TC-14A12P
TC-20B12
Power source
Consumption
Antenna input jack
Color systems
Tuning system
Channel capability
Picture tube (visual diagonal)
Audio system
Video input jack
Dimension (width, height, depth)
Weight
110/220 V AC, 60 Hz automatic switch
55 W
75 W - VHF/UHF/Cable
NTSC/PAL-N/AUTO/PAL-M
F.S.T.
2 to 13 (VHF)
14 to 69 (UHF)
1 to 125 (Cable)
33 cm
3 W max (RMS)
1 (back of unit)
370 x 349 x 374 mm
9,6 kg
Remote Control Transmiter:
Power Source
3V (2 AA type batteries)
Infrared Length
9500 A (Angstron)
Number of Buttons
29 keys
Dimensions (W x H x D)
(54 x 27 x 135) mm
110/220 V AC, 60 Hz automatic switch
69 W
75 W - VHF/UHF/Cable
NTSC/PAL-N/AUTO/PAL-M
F.S.T.
2 to 13 (VHF)
14 to 69 (UHF)
1 to 125 (Cable)
48 cm
3 W max (RMS)
1 (back of unit)
502 x 455 x 471 mm
17 kg
Supplied Accessories:
• 1 Remote Control Transmitter
• 1 300/75Aerial Adaptor
• 2 “AA” type batteries
• 1 Internal antenna (for TC-14A12P only)
Specifications are subject to change without notice. Weight and dimensions shown are approximate.
http://www.Datasheet4U.com


TC-14A12P 데이터시트, 핀배열, 회로
TC-14A12P / TC-20B12
WARNING
This service information is designed for experienced repair technicians only and is not designed for use by the general public.
It does not contain warnings or cautions to advise non-technician individuals of potential dangers in attempting to service a rpoduct.
Products powered by electricity should be serviced or repared only by experienced professional technicians.
Any attempt to service or repair the product deal with in this service information by anyone could result in serious injury ordeath.
Contents
General Guidelines
General Guidelines ..................................................................... 02 An Isolation Transformer should always be used during the
Operation Guide ......................................................................... 03 servicing of a receiver whose chassis is not isolated from the AC
IC 601 - Pins and Functions ..................................................... 15
IC601 and IC451 Voltage Table ................................................ 17
IC601 - Block Diagram .............................................................. 18
General Summary .................................................................... 19
power line. Use a transformer of adequate power rating as this
protects the technician from accidents resulting in personal injury
from electrical shocks. It will also protect the Receiver from being
damaged by accidental shorting that may occur during servicing.
When servicing, observe the original lead dress, especially in
Service Adjustments and Calibrations
the high voltage circuit. Replace all damaged parts (also parts
that show signs of overheating.)
Always Replace Protective Devices, such as fishpaper, isolation
Service Mode .............................................................................. 20 resistors and capacitors, and shields after servicing the Receiver.
How to operate the DAC controls ............................................. 20 Use only manufacturer’s recommended rating for fuses, circuit
EQUIPMENT REQUIRED .......................................................... 21 breakers, etc.
AGC RF CALIBRATION ............................................................. 21
BUZZ (SOUND CIRCUIT) .......................................................... 21
ANODE AND HEATER VOLTAGE CONFIRMATION ............... 21
PAL COLOR OUTPUT SIGNAL ADJUSTMENT ...................... 21
NTSC SUB-TINT CALIBRATION ............................................... 22
PROTECTION CIRCUIT (SHUTDOWN) ................................... 22
CONFIRMATION OF OPERATION ........................................... 22
WHITE QUALITY CALIBRATION .............................................. 22
VERTICAL DEFLECTION .......................................................... 22
High potentials are present when this Receiver is operating.
Operation of the Receiver without the rear cover introduces
danger from electrical shock. Servicing should not be performed
by anyone who is not thoroughly familiar with the necessary
precautions when servicing high-voltage equipment.
Extreme care should be practiced when Handling the Picture
Tube. Rough handling may cause it to implode due to
atmospheric pressure (14.7 lbs per sq. in). Do not sick or scratch
the glass or subject it to any undue pressure. When handling,
use safety goggles and heavy gloves for protection. Discharge
CALIBRATION AND CONFIRMATION ...................................... 22 the picture tube by shorting the anode to chassis ground (not to
CRT CUT OFF CALIBRATION .................................................. 23 the cabinet or to other mounting hardware). When discharging,
WHITE BALANCE CALIBRATION ............................................. 23 connect cold ground (i.e. dag ground lead) to the anode with a
SUB-BRIGHTNESS CALIBRATION ........................................... 23
FOCUS CALIBRATION .............................................................. 23
COLOR PURITY ADJUSTMENT ............................................... 24
CONVERGENCE CALIBRATION ............................................... 24
EEPROM - Memory Maps ......................................................... 25
Power Source Voltages .............................................................. 25
Main Board Schematic Diagram ................................................ 26
CRT Board Schematic Diagram ................................................ 27
Main Board Conductor view ...................................................... 28
well insulated wire or use a grounding probe.
Avoid prolonged exposure at close range to unshielded areas of
the picture tube to prevent exposure to X-ray radiation.
The Test Picture Tube used for servicing the chassis at the bench
should incorporate safety glass and magnetic shielding. The
safety glass provides shieldinf for the tube viewing area against
X-ray radiation as well as implosion. The magnetic shield limits
X-ray radiation around the bell of the picture tube in addition to
restricting magnetic effects. When using a picture tube test jig
for service, ensure that the jig is capable of handling 31kV without
Waveform .................................................................................... 32 causing X-ray radiation.
Parts Location ............................................................................. 35 Before returning a serviced receiver to the owner, the service
Packing and Acessories ............................................................. 36 technician must thoroughly test the unit to ensure that is
Replacement Mechanical Parts List .......................................... 36 completely safe to operatore. Do not use a line isolation
Replacement Electrical Parts List .............................................. 37 transformer when testing.
-2-




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Color Television Service Manual - Panasonic