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slimaaa
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Здравствуйте, прошу помощи понять в чём проблема с телевизором.
Включаю, показывает нормально около 2-х часов, затем выключается и мигает 8 раз. Выключишь, подождешь минут 15, включаешь работает около 40 минут и история повторяется. Если подключить ПС3, то работает вообще около 10 минут. Ощущение такое что просто греется. Скачал мануал там сказано, что 8 мигов - это Contents - MAIN 3,3V, Check point - AP BOARD, H BOARD, DG BOARD.
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imran khan
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| check dry sold circurt with connector and see with open eyes on bulky fat capacitors they also create the problem. |
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Vikont
Передовик
Сообщения: 1799
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imran khan
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Here is i found this articale
Repair TV Panasonic TX-32LX60P Description of the Problem TV does not turn on, the buttons and
the keypad does not respond and the LED on the front panel flashes for a second in 5 - 6 seconds. Composition chassis GLP21: food-TNP8EPL50
PWM power F9222L
MAIN-BOARD: TNP8EAL40
processor VCT 6973G B2 000
memory 24C32AN
Tuner TXN/BL50AERS sound TDA8931T
Inverter LTA260W2 (6LP) Measure the voltage and waveform at
the output of the power supply
showed the following. DC / DC
converter standby, made on IC862,
prominence 3V3 only a short period
of time (and then the LED on the front panel). IC862 is present at the input
voltage of about 6V, 20V growing up
every 5 seconds. Obviously chip is not
in mode due to insufficient input
voltage level. The power supply is realized on TV
TNP8EPL50 m / s IC801 F9222L with chain stabilize the output voltage to
IC850 and PC803. Translation of the power supply to
operate normally the command
IRD_PSU_ON / NOT_STBY 23 output
connector P2 and elements Q851 and
PC802. It was found that a change in
the control voltage (simulation commands ON / OFF) to 23 pin
connector that has no bearing on the mode power supply. From which it was concluded that it inoperative.
Checking and replacing the control
and stabilization of the output voltage, and finally, the PWM chip F9222L gave no results. As a result of piecemeal check the
power supply was installed faulty
component - the transistor Q803 2SK2231Q, was part of the power supply unit IC801. His replacement
restore your TV (transistor had no
direct breakdown, and calls with a
significant drain on the new). It should be noted that the process of repair TVs Panasonic is somewhat different from other manufacturers to repair the TV , which is associated with specific features of circuit design and
used the element base. In the process of repair were used: Service manual and schematic chassis GLP21 Memory contents
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Сам какую работу проделал? 