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KENWOOD UD-50 A-322 T-322 DP-322 X-322 LS-322

AUDIO - SERVICE MANUAL
Type: (PDF)
Size
6.6 MB
Page
31
Category
AUDIO
SERVICE MANUAL
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  • Also known:
    KENWOOD UD-50 UD50 A322 T322 DP322 X322 LS322 UD 50 322 DP LS A-322 T-322 DP-322 X-322 LS-322
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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-3090R mindig ATT ON ír ki!
Sziasztok! Most került hozzám ez a készülék, bekapcsolás után szól rendesen. Egyszer csak elkezdi kiírni ATT ON, de ekkor meg le némítja a rádiót. Ezt ismétli folyamatosan, most átnéztem de semmi elváltozást nem találok benne. Merre keresgéljek az előlapban, vagy az alaplapján?
Kenwood KA-3500 Integrated Amp BIAS Adjust
Hello, Last week I picked up a nice Kenwood KA-3500 40watt intergrated amplifier in pretty good shape. Upon using it a bit more, I noticed a bit of distortion at high volume, more so in the left channel. I checked the DC offset at the speaker terminals, and the L channel said 100 mV, while the R was 25 mV. I understand this isn't so good for the L channel at least, but unfortunately this amp doesn't have any DC offset adjustments. Am I right in saying that to fix this I'd have to replace the output transistors? -- On a related issue, in the service manual I found the section on BIAS adjustment, and I read online how it can affect the DC offset. So I hooked up my voltmeter to the test points, and I got 4 mV on the L, and 8 mV on the R. In the manual it says should be 40 mV.....(!). Is there something wrong here? I tried carefully adjusting them, but they only go to 30mV with the pots fully on, this doesn't seem right to me. -- I compromised at 20 mV BIAS for both channels, and now the DC offset is 50 mV for L, and 5 mV for R, which is better, less than half what they were. I'm wondering, will I damage anything doing this, should I put them back to where they were? -- The service manual is on site here. Let me know if you want me to upload an english copy of the Owner's Manual, it has a better schematic in it all on one page, easier to read. I've also included some pictures. They're not my actual unit, but mine is exactly the same, but less dusty. -- Thanks for reading this. Many thanks in advance, and have a peaceful Palm Sunday! :taps2: Bellarmine
Kenwood KRFV5030D
Fent nevezett készülékem önálló életre kélt. Bekapcsolás után magától váltogatja a bemeneteket majd megáll. Az lőlapon hol működikon hol nem a hangerő gomb, a bemenet váltó gomb és a multi kontroller a többi gomb jó, a távirányítóval viszont mindent lehet szabályozni. Van valakinek valami ötletet mi okozhatja ezeket a hibákat."táp" "proci" A mikró-kapcsolók átvezetését már le ellenőriztem azok jók.
Kenwood KDC-C469Y cd tár bekötése vw gamma blaupunkt rádióhoz
Sziasztok, Segítségeteket szeretném kérni a címben említett eszközök összekötéséhez. Mind két eszköz a sajátom. Csatolok képet a két csatiról melyek összekötésére lenne szükségem. Segítségeteket köszönöm. Üdv.: Gyula
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