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SAMSUNG PS42P4AX-XEC CHASSIS D68A PDP TV

TV - SERVICE MANUAL
Type: (PDF)
Size
5.2 MB
Page
20
Category
TV
SERVICE MANUAL
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  • Also known:
    SAMSUNG CHASSIS D-68A PDP TV D68A PS 42 AXXEC 68 PS42P4AX XEC
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  • See related repair forum topics below. May be help you to repair.
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Relevant TV forum topics:
lcd tv SAMSUNG LE40R71B relay clicking
I have this TV equipped with the source BN44-00134A.Tv does not start, it is heard how the relay is continuously coupling and disconnecting. The stable voltage drop is STB = 6.5V, P-ON / OFF varies between 0.2-2.5V in normal operation = 2.6V) PFC between 360-385V (when going is 382V). All electrolytes, secondary-primary, have been changed, except the 220uF / 450V which is ok. In this state, if measure the voltage on the pins 1-2 to optocoupler PCS802, the relay stay connect and tv work normally . I have replaced the PCS802,801, the ICS 802 (KIA431), the QP803, the QS801, the QS802 checked. If I stop it(unplugged) and I restart the tv in a few minutes, it works normally, if I leave it a little longer, the defect returns. Any suggestion is welcome, I do not think it would be the problem with the mainboard. Thank you!
 I attach the power supply+ inverter schematic model BN44-00134A
samsung le32c650l1wxxh lcd panel
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37 zollos 94 cm es samsungba LCD-kijelzőt keresek!!
Sziasztok! 37 zollos 94 cm es samsung Lcd tv-be kijelzőt keresek!! Köszi! Üdv:Sparco
Samsung LE37S86BDR/XEL LCD
Sziasztok! Egy kis segitséget kérnék, mivel LCD-tv javitásban még nincs nagy tapasztalatom. Samsung LE37S86-tipusú készülékről lenne szó. A hibajelenség: ritka időnként, kikapcsol stanby-ba,és azonnal vissza is kapcsol,és megy tovább. Nem valószinű,hogy kontakt hiba mert kopogtatásra nem reagál. Köszi Hege58.
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