Service manuals, schematics, eproms for electrical technicians
LEAK PREAMP
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75.8 KB
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Category
AUDIO
SERVICE MANUAL
AUDIO
SERVICE MANUAL
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Looking for similar leak manual?
Good luck to the repair!
Please do not offer the downloaded file for sell only use it for personal usage!
Looking for similar leak manual?
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Relevant AUDIO forum topics:
Hello! Harman Kardon Receiver /amplifier AVR 65/RDS ! increases the Volume by it self some times (Suddenly) pse. advise .. Works Well otherwise! Best..Regards Rune..Sweden
Hi All,
I have a Rotel RA-980BX amp with a blown channel. I have sourced most of the transistors, but am struggling to find the other 4.
Part numbers as follow:
2SC3478
2SC4381
2SA1376
2SA1667
What would be suggested equivalents / suitable replacements?
Also, some advice, I suspect the bias pot to be bad. Based on the circuit, would you think that the bad bias pot would cause the drivers and outputs to blow? Any suggestion on modification to prevent this re-occurring?
Thanks
Regards,
Werner
I have a Rotel RA-980BX amp with a blown channel. I have sourced most of the transistors, but am struggling to find the other 4.
Part numbers as follow:
2SC3478
2SC4381
2SA1376
2SA1667
What would be suggested equivalents / suitable replacements?
Also, some advice, I suspect the bias pot to be bad. Based on the circuit, would you think that the bad bias pot would cause the drivers and outputs to blow? Any suggestion on modification to prevent this re-occurring?
Thanks
Regards,
Werner
Üdv mindenkinek.
A címben szereplő magnóhoz keresek szerviz könyvet.Nagyon jó lenne ha valaki tudna ebben segíteni!
Korábban már egyszer próbálkoztam akkor nem jött válasz.
Közben nézegetem a 671-nek a könyvét a mechanika ua.,de nem az miatt kellene.
Illetve ha RS-M60 van az is jó,mert elvileg ugyanaz.
Sziasztok!
Panasonic CQ-RX400 típusú autórádióm USB-ről használva E4-es hibakód kiírása után átlép a következő számra.
Ezt induláskor eljátsza kb 5-10 alkalommal, majd működik rendesen.
A hiba pontos leírásához hozzátartozik, hogy a jelenség függ a hőmérséklettől. Kb 20 fokon csinálja, hidegebb vagy melegebb külső hőmérsékleten nem jelentkezik a hiba.
Több adathordozóval próbáltam, ötlet hiányában még nem szedtem szét.
Valaki esetleg találkozott hasonló problémával?
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