Üdv mindenkinek , alul felül csavarok tartják , de a két oldal mint ha összenőtt volna az elejével . Gondolom valami pattintós megoldás , de inkább roncsolódik mint enged . Kell valami célszerszám , vagy hogy lehet ennek a csodának levenni a hátlapját ?
Manufacturer: Panasonic
Type: TX-L42ETW5
Chassi: LA35
Hello everybody,
I could determine or measure the following with the device:
Device does not start anymore, stand-by LED lights red when device is plugged in and flashes red as soon as an IR command (key press) is sent via the remote control. Voltages of power supply STB 5V and signal LCD_TV_SUB_ON come from A-board. Power supply starts, supplies P15V and SUB1.1V, 1.5V, 1.8V, 3.3V, 5V, HDMI3.3V and USB5V are generated on the A-Board (stand for about 2.5 seconds). Then signal LCD_TV_SUB_ON goes low (voltages go away to STB 5V) and after about 2 seconds back to high (endless). What is missing is the voltage PNL12V which is switched on by PANEL_VCC_ON2. PANEL_VCC_ON2 always has a low signal and does not change its state. Power supply also provides for the 2.5 seconds the 24V for the backlight. Clocking of LCD_TV_SUB_ON starts immediately after plugging in the mains plug (also without IR command). SOS error code is not output. The over-voltage circuit in IC 5000 pin 7 also does not respond. Attached is the timing diagram from the technical training of Panasonic where I have drawn until when the boot process behaves normally.
In my opinion a mistake on the A-board? Does anyone have a tip?
greetings
Andi
Üdvözletem!
Letöltöttem a mnuálját abban az áll, hogy a tápja hibás. Mérve valóban zárlatot találtam, de a jobb oldali modul a hibás.
2 db RJP30E IGBT zárlatos volt benne. Kivettem őket így megszünt a zárlat. Megpróbáltam próbára beindítani a készüléket aminek elsőre zöldet villant a ledje, de ismét zárlatba ment. Újfent ez a modul hibásodott meg. Azt szeretném kérdezni, hogy van értelme megrendelnem ezeket az IGBT-ket, vagy inkább komplett modult érdemes?
Üdv.: Ízirájder
Hello,
I have a Panasonic TX-68PS20A 68cm (29") Television with a GP3 chassis. (Australian PAL model)
The documentation I have found online says that the gp3 chassis supports VHF PAL-B/G and NTSC-M. However my tv doesnt support M audio. It just tunes the video and gives white noise through the audio since it's looking for B audio even though it's displaying ntsc video just fine.
I have found no options for this in any of the service menus I've accessed. Am I missing something?
I don't mind if I have to reflash something to make this work.
Here is the pdf which I read the specs from, it's not for this model but a similar one with a gp3 chassis. http://elektrotanya.com/cgi-bin/download2.cgi?uid=37145&cid=1417425157&fid=117149&file=panasonic_tx-29psxx_gp-3.pdf&x=26&y=30