Service manuals, schematics, eproms for electrical technicians

KENWOOD KAX-48 SCH.

AUDIO - SERVICE MANUAL
Type: (DJVU)
Size
1.6 MB
Page
7
Category
AUDIO
SERVICE MANUAL
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  • Also known:
    KENWOOD KAX-48 KAX48 SCH. KAX 48
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  • See related repair forum topics below. May be help you to repair.
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Relevant AUDIO forum topics:
Kenwood kdc-psw9524 probléma
Sziasztok. Adott egy fenti autórádió.(dupla előlapos, jó kis cucc lenne..) A gond: Hozták, hogy nem kapcsol be. Nagy nehezen kideritettük, hogy nem a saját levehetó előlapja van rajta, hanem valószinüleg egy másik készüléké.( teljesen megegyezik, még a leirások szerint is) Ahogy olvastam ez csak a saját előlapjával megy, de hátha van rá megoldás.. ( a régebbi maszkos modellekhez is voltak olyan eprom tartalmak, amiktől nem kérte pl. a maszk kulcsot...) A készülék nem lopott( az ismerösőm akié, nem olyan ), hanem angliából való, így már akitól vette, az sem utolérhető. Esetleg valami ötletet várnék a megoldásra. Köszönöm. Sziasztok.
Kenwood KRF - V7070D hifi erősítő
Sziasztok! Adva van a címben szereplő eszköz, a hiba a következő, minden működik normálisan de egy idő után leáll. Szemre a puffer kicsit mintha puffadt lenne de ez nem 100%. Ez okozhat leállást? Szóval KENWOOD KRF-V7070D a kicsike....
Kenwood KA-80 erősítö egyik oldala jobban melegszik!
Sziasztok! Most vettem elő ezt az erősítömet, mert elopták a Technics-et. Egyik gondom az volt vele hogy nem szolt ha be volt nyomva a dc gomb, de kiengedve szólt. Megtaláltam hogy egy ZY140 ( ide most 15v ) zárlatos volt, és persze a ic is elment, de csere után mély, magas állítás is rendben van. De az egyik oldalam nagyon melegszik, ellenállásokat átmértem, kondik cserélve a végfokoknál. Az egyik kb 40-50 fok, a másik 80 fok körül lehet, miért van ekkora különbség? Mi lehet a gond, mert szólni meg rendesen szól.
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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