SERVICE TV - Nr 25 - Februarie 2015

din cuprins :

Comanda blocurilor Gate Driver pentru ecranele LCD si LED Samsung
Schema invertorului 168P-P20TA0-00 realizat cu controlerul MP1048
Defecte datorate defectarii blocurilor Gate Driver la ecranele Samsung
Considerente generale referitoare la depanarea ecranelor Samsung
Ecranele Samsung : LTA216AT01 , LTA260AP02 , LTA260AP05
Circuitul Level Shifter TPS65193
Ecranele Samsung :
LTA320AB01 , LTA320AN02 , LTA320AB02 , LTF320AB01 , LTA320AN01
Schema sursei de alimentare + invertor 168P-P22TQN-00
Ecranele Samsung : LTA320AP01 , LTA320AP06 , LTA320AP13 , LTA320HJ06 ,
LTA320AP33 , LTA320HM01 , LTA320HW01
Circuitele Level Shifter MAX17120 si MAX17121
Schema sursei de alimentare 168P-P24TWB-W1
Ecranele Samsung : LTA320HW02 , LTA320W2 L01 , LTA320W1 L02 , LTA320W2 L14 ,
LTA320WT L05 , LTA320WT L06 , LTA400HA11 , LTA400WH LH1 ,
LTA400HF12 , LTA400HM19
Circuitul Level Shifter TPS65191
Schema sursa alimentare + driver LED-uri = 168P-P32EWU-00
Ecranele Samsung : LTA400HT L01 , LTA400WT L01 , LTA400WT L07 , LTA430HN01 ,
LTF320AP01 , LTA460WT L11 , LTF320AP08
Circuitul Level Shifter MAX17109
Schema sursa alimentare + driver LED-uri = 168P-P32EXM-50
Ecranele Samsung : LTF216AT01 , LTF320AA01 , LTF320AP06 , LTF400HM03 ,
LTF320AP11 , LTF400HC01 , LTF460HE01
Schema sursa alimentare 168P-P37EWS-10
Ecranele Samsung : LTF400HF11 , LTF400HF01 , LTF400HF16 , LTF400HM01 , LTF400HM05 ,
LTA400HM05 , LTM185AT05 , LTF550HQ03 , LTJ400HM05 , LTJ400HM08
Schema sursei DC-DC + Level Shifter realizata cu controlerul RT6905
Ecranele Samsung : LTJ460HW03 , LTJ460HW10 , LTM185AT01 , LTM230HT01 , LTM270HT03 ,
LTY320AB01 , LTY320AP02 , LTY320AP03 , LTY320AP04 , LTY320HM02 ,
LTY460HM01 , LTZ320HM01 A07 , LVF430SSTM E31 V1 ( TCL )
Schema sursa alimentare 168P-P46TTS-00
Combinatiile [ Ecran/Main/Sursa ] pentru tv LCD/LED Samsung dedicate Mod Hotel
Depanarea ecranului CLAA220WA 01 ZB – completare
Schema driver LED-uri 168P-P26DWD-03 – controler = A3039A / driver = AP3608E
Schema convertor PFC din sursa 168P-P26ATB-00 – controler = OB6563
Schema sursa principala 5V / 12V / 24 V = 168P-P26ATB-00 – controler = OB2269C
Schema invertor 168P-P26ATB-00 – controler = OB3328U
Defecte la sursele de alimentare : 40-1PL37C-PWG1XG , APS-284 , DPS-182CP ,
BN44-00156B , BN44-00165A , BN44-00166A
Schema sursei de alimentare 168P-P65TTK-00
Defecte la sursele de alimentare : BN44-00199A , BN44-00202A , BN44-00213A , BN96-03832A
Schema sursa alimentare 168P-P55TQC-00