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PANASONIC TX-28SL1F
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(RAR)
(RAR)Size
500.0byte
500.0byte
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Category
TV
EPROM
TV
EPROM
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PANASONIC TX-28SL-1F TX28SL1F TX 28 SL 28SL1F TX-28SL1F
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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
Sziasztok!
Lenne ez a gép, és nem szedném még szét a kijelzőt...
LC420EUD(FF)(F1)- tipusú kijelzővel van.
Valaki ,aki javított, ill cserélt már ebben a tipusban háttérfényt az legyen olyan kedves leirni a tipusát..
Esetleg a beszerzési forrását.
Köszönöm!
Lenne ez a gép, és nem szedném még szét a kijelzőt...
LC420EUD(FF)(F1)- tipusú kijelzővel van.
Valaki ,aki javított, ill cserélt már ebben a tipusban háttérfényt az legyen olyan kedves leirni a tipusát..
Esetleg a beszerzési forrását.
Köszönöm!
Sziasztok!
A fenti Tv-hez keresnék komplett tápegységet baráti áron. :)
Képek lent, a pontos típusa : TNPA4221
Ha valakinek van, kérem jelezze árral együtt!!
Túl sokat nem költenék rá, de kidobni sajnálnám..
:)
Köszönöm!
Atomka
A fenti Tv-hez keresnék komplett tápegységet baráti áron. :)
Képek lent, a pontos típusa : TNPA4221
Ha valakinek van, kérem jelezze árral együtt!!
Túl sokat nem költenék rá, de kidobni sajnálnám..
:)
Köszönöm!
Atomka
Üdv. Mindenkinek!
Keresek elfekvőből HR80307 vagy FAT 41281 vagy ELDOR 13022002D B08 sorkimenőt Panasonic cp830fp alaplapba. Postai utánvéttel, vagy tudok ajánlani érte METZ 444 50 1515.A1 (003583103) gyári sorkimenőt.
Köszönöm: János
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