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PANASONIC-TX21K1TB
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1024.0byte
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Category
TV
EPROM
TV
EPROM
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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
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
Tisztelt Fórumozók !
Ehhez a készülékhez keresek TNP8EA021 tipusszámú modult. Kérem ha valakinek van ilyen modulja és teremészetesen eladó jelezze azt.
Köszönettel:kerekguriga
SZÉP JÓ ESTÉT.segítséget kérek tőletek panasonic tx 29 as 10p tévé ki bekapcsolgat a relé kattog ha vissza jö a kép,van ugy hogy 2percig jó utána kattanás elmegy a kép ,és utána relé kattanás és vissza jön . előre is köszönöm
Szevasztok!
Tegnap átugrottam egy ismerősömhöz, (műszer, szerszám nem volt nállam)ahol a következőt tapasztaltam a fent említett gépen:
Változtatja a fényerejét, mint mikor a G2-őt tekergetjük, kicsit túl is lőtte a képet, de visszafutási csíkok nem látszottak.
Néha visszaáll normál állapotába.
Nem ismerem a gépet, de azt olvastam, hogy a VDP3112B szokott elhalálozni benne.
Jó helyen keresgélek, vagy merőben máshol (sorkimenő, videovégfok) keresgessek?
Segítségeteket előre is köszönöm!
Üdv!
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