Service manuals, schematics, eproms for electrical technicians
THOMSON 7-4890A
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442.7 KB
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Category
AUDIO
SERVICE MANUAL
AUDIO
SERVICE MANUAL
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Looking for similar thomson manual?
Good luck to the repair!
Please do not offer the downloaded file for sell only use it for personal usage!
Looking for similar thomson manual?
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THOMSON 74890A 74890 4890A 7-4890A
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Relevant AUDIO forum topics:
A fenti készülék azt a hibát produkálja, hogy bekapcsolás után 5mp múlva lekapcsol, a kijelzőn azt írja: OVERLOAD. Szerintem ez a védelem lehet, de a végfok panelokat átmértem nem találtam benne rossz végfok tranyókat, a + - tápok rendben, fülhallgatóval nem kapcsol le, de nem is szól.
Hello everybody in Hungary,
I am looking for schematic diagram of portable player THOMSON TM9670.
When I connect an USB drive into the machine, the normal supply voltage 5.5V drops to approx. 2.0V in dependency of each usb drive. The player reports that no usb is connected.
I found out that power supply circuit comes from transistor D882L – from pin No.3 which is base pin. This doesn’t make any sense to me. I would expect it should be connected to collector or emitor pin. Therefore I need schematic diagram or service manual for this player.
Thank you in advance for any help.
Regards,
smith666
I am looking for schematic diagram of portable player THOMSON TM9670.
When I connect an USB drive into the machine, the normal supply voltage 5.5V drops to approx. 2.0V in dependency of each usb drive. The player reports that no usb is connected.
I found out that power supply circuit comes from transistor D882L – from pin No.3 which is base pin. This doesn’t make any sense to me. I would expect it should be connected to collector or emitor pin. Therefore I need schematic diagram or service manual for this player.
Thank you in advance for any help.
Regards,
smith666
Tisztelt Tanyalakók.
Van egy címben szereplő házimozi erősítőm, aminek az a baja, hogy bekapcsolás után három művelet hajtható végre, aztán lefagy. Kb. 1-3 perc múlva újból lehet három műveletet végrehajtani, majd ismét fagyás. És ez így ismétlődik.
Arra a következtetésre jutottam, hogy a hibás ez a microkontroller. ht48r05a-1
Kérdezem, van-e valakinek bontott, de jó , vagy új, szóval minden megoldás érdekel.
Üdvözlet
Üdvözletem Mesterek !
Javítanék egy Thomson DPL570 gépet
Egy csatorna zárlatos.
2SD2559 nem találtam sehol.
2SB1659 van a HQ-nál
2SC4137 van a HQ - nál
Biztos javítottak már sokan hasonlót.
Lehet ezt pótolni valamivel?
Vagy valakinek van elfekvő , esetleg tudnak beszerzési forrást?
Segítséget előre köszönve: Öreg T.
Javítanék egy Thomson DPL570 gépet
Egy csatorna zárlatos.
2SD2559 nem találtam sehol.
2SB1659 van a HQ-nál
2SC4137 van a HQ - nál
Biztos javítottak már sokan hasonlót.
Lehet ezt pótolni valamivel?
Vagy valakinek van elfekvő , esetleg tudnak beszerzési forrást?
Segítséget előre köszönve: Öreg T.
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