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PHILIPS 25PT4103 CHASSIS L6.2

TV - EPROM
Type: (RAR)
Size
858.0byte
Page
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Category
TV
EPROM
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    PHILIPS L-6.-2 25PT4103 CHASSIS L6.2 25 PT 4103
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Relevant TV forum topics:
32" Philips táp PF6005a halott?
Hi!
Lenne egy ilyen Philips. A 100p/1 kV felrobbant vitte a táp FET-et meg a D ellenállást, cseréltem, de nem megy.

Szokta vinni a PF6005a-t is? Kösz
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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
Philips 20 PT 1554/58, SL9.2E. fél perc múlva kikapcsol
Sziasztok! Philips 20 PT 1554/58, SL9.2E. Hiba: kép, hang jó, de fél perc múlva kikapcsol készenlétbe. Megint indítva megint fél perc......stb. A tápok jók, szkóppal. A sortáp készenlétben 100 V, üzem közben 96 V. Ismert hiba ez valakinek? Érdemes vele foglalkozni? Köszi. Üdv: formasu Ez esetleg jobb cím! Így van, és köszönöm.
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