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PHILIPS X12T742 SI

TV - INFO-TIPS
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INFO-TIPS
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    PHILIPS X-12T-742 X12T742 SI 12 742
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  • See related repair forum topics below. May be help you to repair.
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Relevant TV forum topics:
LED MEGHAJTÓ KÁRTYA külső indítása PPW-LE42FC-O (A) REV0.1 6917L-0151B PHILIPS 42 PFT5209
Üdv.
A fenti kártyát szeretném kényszerindítani,
háttérpróba céljából.

Csinált már ilyet valaki?

nen tudom,milyen feszültségek kellenek hozzá,doksit se találtam.
köszi.

 
Philips 24PHH4000/88 logóig jut el és újraindul(MEGOLDVA)
Sziasztok!

Szokásos flash hiba de nem tudtam megoldani szoftver frissítéssel, mert nem indítja el a frissítést. Az ügyfél ráadásul el is viszi mert türelmetlen de érdekelne, hogy van-e megoldás erre a problémára.

Egy másik pendrivról simán lement a frissítés és jó lett! Nyomva kell tartani a készüléken a power gombot és úgy áram alá helyezni, majd elkezd villogni a led és lefrissít!
PHILIPS Plazma 42PF7520D/10 kép hiba!
Sziasztok!

A fenti tv sajnálatos módon másfél hónapig egy ágyon pihent PDP kijelzőjén. Sajnos a tulaj nem állította talpra.
Előtte csodálatos volt a képe.

A PSU tápok sm szerint rendben vannak.
A szervízkönyv szerint VS: 70-90V nálam ez 73v
VA pedig VS ből állítja elő 63V-ot,könyv szerint 64 v.
A táp összes kondija átmérve és ami ESR szerint nem volt jó cserélve. 
Hiba megmaradt.
Átpucoltam az LVDS kábel csatlakozóit a Mainnál és a control board nál is,
Olyan a képe eme tv nek mintha Gamma hibás lenne.
HA nincs semmilyen jel forráshoz csatlakoztatva akkor is rossz a kép.

Hiba kódot is villog. LED eljárásnál(1 hosszú  majd szünet és 4 gyors villogás).
SAM -ban 40000- jeleníti meg a kijelzőn.
Service Alignment Mode (SAM)- ban töröltem a hiba kódot.
TV áramtalanítás  majd bekapcsolás után ismét kidobja a hibakódot.
Bizony ez hibát érzékel.
SAM szerint:
Genesis Scaler
Flash-ROM
Van e kettő között összefüggés?


Merre keresgéljek?
Üdv:

 

Philips 40PFL7007K/12 does not power on - Chassis QFU1.1E LA
Hi everybody, I have Philips 40PFL7007K/12 on repair. TV does not start up. I have checked the PSU and it seams to be OK. There seam to be problem on the main board. What I have tried… Well, there is +3V3-STANDBY coming from PSU to main board. This feeds up the main processor. This voltage has also been used to switch TV on. I have checked that switching signal from POWER ON button goes back to main board. But I did not check this whole path towards the processor as it is BGA package and it is covered by ceramic cooling plate. And here comes what is not clear to me. 1. How to check if the main processor works? Does it work on the +3V3-STANDBY when TV is is standby mode? 2. Can I somehow check if the PSU is working? May be by activating some pin? 3. I have noticed by measuring (ohm-meter) some capacitors on the main board (in circles on the picture) that there is very low resistance on them (4.5ohms). In the scheme it is shown that these capacitors are on the 1V5 (1.5V) line. Is this OK? Basically it does not give much current as I = 1V5 / 4R5 = 333mAmps. What do you think? Certainly there are low voltage data parts (RAM. Processor …) connected and such resistivity might be correct….?.... What I have also find that this 1V5 is split into 1V5M0 and 1V5M1. See the picture. I have removed the coils and measured resistance. Then 1V5M0 shows about 15ohms and 1V5M1 shows about 6,5ohms. The service manual is on this link: http://elektrotanya.com/philips_ch.qfu1.1e_la.pdf/download.html Thanks Martin
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