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Sziasztok! Hoztak hozzám egy JVC mp3-as autóhifit végfok eldurranással.Utánanéztem LA47515 ami benne volt a HQ nál 5360Ft+posta,hát szerintem ennyit már nem fognak rákölteni.Tovább vizsgálgatva hasonló végfokokat arra jutottam hogy a TDA7384(ugyan az a tokozás) nagyon hasonló bekötésű,mindössze az 1.2. lábát össze kell kötni és a 25-öst szabadon hagyni.ára sokkal barátibb:1492Ft ráadásul nagyobb teljesítményű(előbbi papíron 4*50W az olcsóbb 4*60W)!!! Valaki próbálta már esetleg? (beletettem,bekötöttem és tökéletesen működik) Arra lennék kiváncsi valakinek hosszab távon van e tapasztalata vele.Üdv! Laci

Sziasztok. A fent említett erősítőben az egyik IC biztos rossz, hogy melyik az még nyomozás tárgya. Van e ötlet a beszerzésére? Üdv, Laci

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

Sziasztok! Harman/Kardon AVR65RDS rajzot v. SM-t keresek. Greatz hiba. Ez van ráírva: W2-04 Tudja esetleg valaki ennek a speckóját? Zoli