Service manuals, schematics, eproms for electrical technicians
PANASONIC TC-21S85R
Type: 
(RAR)
(RAR)Size
465.0byte
465.0byte
Page
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Category
TV
EPROM
TV
EPROM
If you get stuck in repairing a defective appliance download this repair information for help. See below.
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Good luck to the repair!
Please do not offer the downloaded file for sell only use it for personal usage!
Looking for similar panasonic manual?
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PANASONIC TC-21S-85R TC21S85R TC 21 85 21S85R TC-21S85R
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Relevant TV forum topics:
Sziasztok!
Tárgybéli készülékben a nyáron sorvégtranyót cseréltek, eddig bírta. Az eredetije 2SD1441Rl, S2000-et tettek bele. Ez utóbbiban nincs dióda, szerintem abba halt bele. Mit tegyek bele?
Amúgy induláskor homályos a képe, be kell melegednie, hogy jól működjön, de a szervizben ezzel a hibával nem foglalkoztak.. Szerintem egy átkondizás jót fog tenni neki, bár eléggé újnak tűnnek, ESR mérőm meg nincs..
Üdv: Jácint
Kedves Tanyalakók!
Adott a fent nevezett TV.
Csak a készüléken lévő ki-be kapcsoló nyomógombbal indítható kb 3 másodpercig nyomva.
Beindul de csak a Panasonic logo jelenik meg. A feszültségek rendben látszanak, de nem megy tovább, A távirányítóra a jelző led reagál, de készülék nem. Sem ki, sem be nem kapcsolható távirányítóval. Minden tipp jól jön.
Üdv: myckie53
Adott a fent nevezett TV.
Csak a készüléken lévő ki-be kapcsoló nyomógombbal indítható kb 3 másodpercig nyomva.
Beindul de csak a Panasonic logo jelenik meg. A feszültségek rendben látszanak, de nem megy tovább, A távirányítóra a jelző led reagál, de készülék nem. Sem ki, sem be nem kapcsolható távirányítóval. Minden tipp jól jön.
Üdv: myckie53
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!
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