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PANASONIC TX-21S1T TC-21S1R CH Z5 SCH.

TV - SERVICE MANUAL
Type: (DJVU)
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353.6 KB
Page
4
Category
TV
SERVICE MANUAL
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  • Also known:
    PANASONIC TX-21S-1T TC-21S-1R CH Z-5 TX21S1T TC21S1R Z5 SCH. TX 21 TC 21S1T 21S1R TX-21S1T TC-21S1R
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Relevant TV forum topics:
RGB Mod in Panasonic CTP-2780SF CRT

I posted here a while ago but no answers:
https://elektrotanya.com/comment/reply/91852#comment-form

Made some good progress, but there seems to be a sync problem.
I posted to the EEV blog for more help:
https://www.eevblog.com/forum/projects/rgb-mod-in-panasonic-ctp-2780sf/msg5615065/

 

 

Any help or feedback appreciated.

TX-P42ST50E Panasonic Plazma leszabályozza a fehéret
Sziasztok! Vettem egy ilyen TV-t, hogy a téli sporteseményeket, jó minőségben nézhessem.(UPC műholdas HD box van)Iszonyú képet ad, ha fehér a kép. Ocsmány, piszkosszürke a hó, vagy a jégkorong pálya, ráadásul kegyetlenül villog ahogy koriznak ide-oda, mert az elektronika pont azon a határon van, hogy leszabályozgatja a túl nagy fehéreket.Nézhetetlen.Panás kollégáktól kérdezném, hogy nem lehet-e szervíz menüben(beléptem, de nem állítottam semmin) valamit állítani, vagy egyszerűen kikapcsolni ezt az "automatikát"? (a villanyszámla nem gond) A barátom is ilyet vett és pontosan ez a jelenség nála is. Ha nincs sok fehér a képtartalomban, akkor verhetetlen a képminőség. Köszi előre is a válaszokat, üdv.
Panasonic TX-32DK10F, EURO-5L sasszi, W76ESF031x44 cső katód-fűtés zárlat.
Mester urak! Fenti tv képcső fűtését leválasztottam, RMS mérőm nincs szkóppal az eredeti feszültségre próbáltam belőni. Két menet adódott a sorkin és egy 2,2 ohmos ellenállás. A g2-t a szervízmenüben beállítottam, de a fókuszt nem tudom teljesen élesre állítani. Teljesen feltekerve már majdnem jó, már csak egy kicsi hiányzik. (nem akarok a PROVIDENT-hez fordulni) Van valami ötletetek, hogy mit lehetne ezzel csinálni? Előre is kösz. Üdv.:kollerp
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
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