Service manuals, schematics, eproms for electrical technicians

SAM1497

TV - EPROM
Type: (BIN)
Size
1.4 KB
Page
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Category
TV
EPROM
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  • Also known:
    SAM-1497 SAM1497 SAM 1497
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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
LG55 LA740S háttér világítás hiba
A fenti led tv háttér világítás bekapcsolás után rövid ideig kb 2-3s világít, majd megszünik. A kép és hang rendben. A PCB EAX64905801 panelon a LD701 led 4 rövid felvillanással jelez. Ha a világítási hiba magától megszünik, néhány napon keresztül több órát is üzemel hiba nélkül, de ha meggondolja magát, akkor nem müködik a világítás. A led+ táp ilyenkor csak 65V. Jó lenne egy rajz a panelról, de sajna nem találtam meg. A LED 2x3 csoportba kötve, külön csatlakozón található.
LCD kijelzők eladóak, ha érdekel valakit...
Sziasztok Ha valakit érdekel.. 19" HD 50Hz új 32" HD 50Hz új inverteres 37" FHD 100Hz újszerű 47" FHD 50Hz újszerű inverteres 47" FHD 100Hz új Eladó....
Lg TV táp fet melletti kondi értékét keresem
Sziasztok

Egy LG EAX64405901/EAY62569601 tápban felrobbant a táp fet melletti C615 poziciószámú kék tárcsakondi. Sajnos nem látszik az értéke, ebben kérnék segítséget mi lehetett ott. Tv típusa 37LM620S. 
Köszi
Balázs

Próbára 220pF 1KV tettem működik, de hátha valaki tudja a pontos értéket
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