Service manuals, schematics, eproms for electrical technicians

MURPHY A 482.

AUDIO - SERVICE MANUAL
Type: (DJVU)
Size
59.9 KB
Page
1
Category
AUDIO
SERVICE MANUAL
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  • Also known:
    MURPHY 482. 482
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  • See related repair forum topics below. May be help you to repair.
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Relevant AUDIO forum topics:
BMW autó tuner BM 54 végfok helyettesítése IC-vel MEGOLDVA TDA7560 -VAL.
Üdv. Mindenkinek!!
Segítségre lenne szükségem a címben lévő bmw kocsi tuner/audioval kapcsolatban. Az egyik végfok leégett. A tulaj szerint cseréljem valami IC -s re. Mit ajánlotok?
Köszönöm.
DAC építés és vélemények
Sziasztok!
Szerintetek érdemes nekiállni TDA1545A vagy TDA1543 ic-vel/ eredetiek/ dac-ot építeni? FLAC-ot szeretnék hallgatni erősítőn keresztül.
Szívesen várom az ötleteket! 
Sony GTK-XB7 Aktív hangfal ( nincs készenlét )
Üdv Mesterek.!

Sony GTK-XB7 Erősítővel bajlódok.
Elmondás szerint csak megállt.
Hála a rajz a Tanyán megvolt.
A készenléti 5V nincs.
A rajz részletről van szó.
A bemenet 36V megvan , kimeneten 1.6V van , úgy hogy az áramkör le van választva a 2 2A kimeneti biztosítónál.
Minden elem átnézve , jó ,Így csak az IC LEHET HIBÁS.
Zárlatos volt a D1 3D dióda, természetesen előtte semmi nem volt.
De hogy lehet hogy a bemeneti 2A biztosíték nem ment ki ?
Ic.t (EUP3490 ) , nem találtam , legalább is aminek a lábkiosztása megegyezne.
HQ  /LM2596S) 40V/3A , de más a lábkiosztás.
SMD IC , tehát nincs mód forgatásra.
Ha tudna valaki segíteni , megköszönném.
TME-nél elvileg van , de nincs kép róla.
Köszönettel: Öreg Tom
Trio-Kenwood: KR-3010 [Radio] S.N.962845 / Does not work, the final floor and prefinal floor defect with many burned component/

I greet you! I would need the scheme of this "vintage" amplifier that needs to be "restored". The problem is that in the prefinal and final floor I have many "fried" resistors well, their value cannot be identified.I replaced the defective transistors: 2SC1509, 2SA777,2SB690 and 2SD 796 (each 2 pcs.) and the electrolytic capacitors adjacent to them. I could not go further because of the carbonized resistors that I do not know their value (I can only guess that they are values small, in the order of ohms). The schematic diagram I downloaded, from the address received by the kindness of a colleague is not complete - it is a single page (missing Q29-Q30-Q31-Q3 and resistors R115-R116-R117-R118 which are completely carbonized, at other resistors I could see their value).Thanks in advance!
Finally, I found the missing part

If stuck in the repair and you ask questions, please do it as follows: - Details: Give the exact model number of your device and the chassis ID (if there is). - If possible, please attach pictures of the appliance. - Anamnesis: Write down the exact symptom. If hard to describe the symptom, it is difficult to verbally defined clearly, attach pictures or sound of the phenomenon! - Tell what was you have done so far: search contact error, which parts has examined or changed yet, etc... The incorrectly named topic suspended and will be deleted after 48 hours! Suspended state while others are not able to comment until you correct the address. Subsequent repair of the defective title (within 48 hours) by clicking on the "Edit" tab can be carried out.

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