Service manuals, schematics, eproms for electrical technicians
RADIOAMATO 3033 BATTERY RECEIVER SCH
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(PDF)
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79.3 KB
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3
3
Category
AUDIO
SERVICE MANUAL
AUDIO
SERVICE MANUAL
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Looking for similar radioamato manual?
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RADIOAMATO RECEIVER 3033 BATTERY
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Relevant AUDIO forum topics:
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
Üdv! SA-EX100 aktív hangfalról van szó, a magassugárzója alig szól, szoktak ezek az elektrosztatikus hangszórók így megdögleni?
Csákó!
Nem lenne valakinek infoja erről a hangváltóról?
A hangfal egyébként 150/300W-os.
Előre is köszi!
Karcsi
Sziasztok Tanyalakók!
Nemrég került hozzám egy szobai erősítő. Típusa: BASF D-6360 HIFI.
A probléma a következő:
Egyik oldala működik csak. Arra lennék kíváncsi hogy gyárilag melyik tranzisztorpárral van szerelve a készülék.
1.pár: 2SA1302
2SB3281
2.pár:
K D718
K B688
Tranzisztor csere megtörtént. Az egyik oldal ami alapból halott volt valamiért gerjedt. félóra járatás után a betápnál a egyik terhelő ellenállás majdnem hogy világított. (utolsó képen bekarikáztam az alkatrészt.)
Másik oldal még működött. Kis idő elteltével egy ellenállás elégett. Végül egyik oldal sem működik.
Kicseréltem mind a 4 tranzisztort újra. +/-40V a tranzisztorokon meg van. Bemenő jel már a kivezérlés jelzőig sem jut el. Az elfüstölt alkatrészeket cseréltem. (hibátlanra)
Továbbra sem ad ki hangot. Biztosítékok rendben, Tápfesz rendben.
Válaszokat előre is köszönöm!
üdv: Csady