Service manuals, schematics, eproms for electrical technicians

DENON DSB-100 V01 AND V02 SCH SM

AUDIO - SERVICE MANUAL
Type: (RAR)
Size
1.9 MB
Page
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Category
AUDIO
SERVICE MANUAL
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    DENON DSB-100 V-02 DSB100 V01 AND V02 DSB 100 01 02
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  • See related repair forum topics below. May be help you to repair.
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Relevant AUDIO forum topics:
Denon DRA-F107 - Dead, no power
Hi to all. Unit arrived dead with no power. The problem is with switching power supply. I checked most of the parts, no faulty found. Unable to check PWM ICs. To determine which one has the problem, Service Manual is more than important and necessary. I would appreciate if someone of you can help me find it or send it to me. Thanks in advance for your kind attention and help. Regards from Greece, John
DENON AVR-770SD táp hiba
Üdv mindenkinek ,fent jelzett erősítőt javítanám a tápjában elvolt égve pár alkatrész zömét sikerült cserélnem viszont a D911 dióda értékét nem tudom beazonosítani ha tudna valaki segíteni egy rajzzal vagy csak a dióda értékével hálásan meg köszönném üdv
Denon PMA500V amplifier
I have and found most of the voltages as indicated on the circuit diagram, till op amp M 5218P; are near those specifed. The output on the centre of the two power transistors of both the channels are also alright.

While looking at the voltages on test points as mentioned on the page 7 for setting up quiscent current, these cannot be set.

Bit of history,  the amplifier was lying unused for long time. Nothing in it has burnt. It was never opened earlier than this time, couple of days back.

While I was probing for voltages with DMM, with probe on collector of TR413 one of the fuses blew up. Later same thing happened on the other channel as well.

With the above as background can a Good Samaritan  figure out feasibility of repair.

i am unable to upload service manual as file size is 7.3 mb
Denon AVR-X2100W túl nagy nyugalmi feszültség az SR csatornán ezáltal melegszik.
Sziasztok! Javítok egy munka után .
Denon AVR-X2100W tipusu többcsatornás házimozi erősítő SR csatornája a célterület.
Eljutottam odáig ,hogy szól mostmár , viszont a nyugalmi veszültséget nem tudom letekerni eléggé 0.120V alá , 0.006V lenne a cél. Így erősebben melegszik .
Feltöltöttem a rajzot , sima kommersz erősítő kapcsolás.
TP405 ön mérve , VR405 tekerve ahogy kell .

Cseréltem a R597,R597,R603,R604 , R588, R612 ellenállásokat , igaz nem preciziós
A 2SD2390 ; 2SB1560 darlingtonokat , és a 2SC3964 et .

Az aki foglalkozott vele , tévedésböl eltekerte a VR405 öt , mert arra gondolt ,hogy hangerőt is lehet vele korrigálni, így odalett a végfok.
A bemenetválasztó ic (körbelábas) volt a hunyó , akkor történik ha bekapcsolt állapotba és nem letekert hangerővel dugdos az ember rca -t bele :)

Mi okozza a nagy áramot a kérdés.

Nézzek rá a R605,R608, R595 ellenállásokra is ?
Az eredeti 2SC3964 nemtudom sérült vagy se.
KTC3206 , R581 ?

Köszönöm a választ!

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