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PANASONIC TX-28LB1P
Type: 
(RAR)
(RAR)Size
547.0byte
547.0byte
Page
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Category
TV
EPROM
TV
EPROM
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PANASONIC TX-28LB-1P TX28LB1P TX 28 LB 28LB1P TX-28LB1P
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Relevant TV forum topics:
Hello, I am working on a panasonic tv that shuts down a few seconds after it comes on, blinks(red standby light remains on)three times pauses, and repeat the cycle. Any ideas as to what could be wrong? Thanks.
Sziasztok
Adott egy TV.. Adott egy Panasonic tx-32lmd70 tv chassis: GLP22
Angliából való.. Sajnos emiatt csak UHF-en működik, I hanggal.. Nekem ugye értelemszerűen Kellene a VHF és az S sáv iss, BG DK hanggal.. A TX-32LMD70F az europai piacra van, az tud mindent.. A 2 tv 100%-ban megegyezik, ugyan az a tuner stb... Valószínű softver vagy eeprom a különbség.. Valaki tud segíteni? tx32mld70f eeprom tartalommal? Vagy bármiféle segítséggel? Sajna így a TV nem használható ::(
ELőre is köszi
Laci
Udv mesterek. A fent említett TV javításhoz kérnék tanácsot. A készulék mukodik csak a kép kozepén van 1 kb 20cm széles fekete csík fuggoleges irányban. Mivel már volt hasonló hibám rendeltem bele 1 buffer modult (TNPA 5076.1C2). Be is szereltem de a bekapcsolás után (még mielott kijott a kép) sercegést hallotam és gyenge amperszag volt a levegoben. A kép ugyanolyan hibásan jott elo mint a buffercsere elott. Amit még észrevettem, hogy az a coff hutoje ahol a csík van tiszta hideg és a tobbi langyos. Készítettem róla képeket is.
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
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