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PANASONIC TX-21PS70T CHASSIS MX-5ZA

TV - SERVICE MANUAL
Type: (PDF)
Size
3.8 MB
Page
29
Category
TV
SERVICE MANUAL
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  • Also known:
    PANASONIC CHASSIS MX-5ZA TX21PS70T MX5ZA TX 21 PS 70 MX ZA 21PS70T 5ZA TX-21PS70T
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Relevant TV forum topics:
PANASONIC TX40CXW404 chassis: 17MB100 Led tv Hálózati lan kábel csatlakoztatásakor a TV lefagy.
Kedves kollégák! Én még ilyen gagyi hibával nem találkoztam. Ha bedugom a lan kábelt a TV rögtön lefagy,majd kikapcsol és ujra indul ismét lefagy. Egyébként e nélkül tökéletesen üzemel. Az RJ45 aljzatot már kicseréltem. Zárlatot nem mérek a kimeneten. Nincs valakinek egy spi mentése vagy USB s firmware. Esetleg valami tapasztalat. main: 17MB100 cimke:10096357 232648824 88 40" 27391643 DIJ LCD: VES400QNSS-3D-U01 PSU:17IPS20 071114 R9 üdv.
Panasonic TX-L42ETW5 Device does not start anymore, stand-by LED lights up red, no SOS error code
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
Panasonic TX-P42GW20 hibakód keresés
Üdv Mesterek! Még nincs nálam a gép. Rajzot töltöttem már le erről a sasszéról ( igaz az a típus TX-P42G20 de a sasszé ua. ) , de abban csak 12-ig van hibakód, ez meg 13-t villog. Hátha valaki tudja....
Panasonic TV sorkimenő
sziasztok keresek Panasonic TX32PS12P tv-hez sorkimenő trafót száma : CO3705106870 13022002CB08 ha valakinek lenne át venném további szép napot
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