Service manuals, schematics, eproms for electrical technicians

UNICA STORSTATIONSMODTAGER-U337 1936 SCH

AUDIO - SERVICE MANUAL
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AUDIO
SERVICE MANUAL
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    UNICA 1936 337 U337
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Relevant AUDIO forum topics:
Harman/Kardon AVR80 THX házimozi erősítő bekapcsolás után búg a táp!
Sziasztok! Szóval a fent nevezett erősítő táp búgása elleni tippek érdekelnének! Hozzáteszem, hogy olyan tv állványon van ami kicsit fel is erősítő a búgó hangot! Esetleg tegyek alá valamit vagy más ötlet? Köszi előre is! :) Petya
Tuner hangolási hiba
Hello. Van egy Technics ST-GT630 tunerem és az a baj vele, hogy nem rögzíti le a befogott adást. A kijelzőn van az un. "QUARTZ LOCK" felirat a STEREO-val együtt és az a baj, hogy többször, vagy egyfolytában villog, mintha nem tudná befogni, vagy "lenyugtázni" az adást...Némelyik adásnál nem, de az esetek kb. 80%-ban villog, mi lehet vele a gond? Összehasonlítottam más tunerrel és egyik sem csinálja ezt. Ha a központi kábelen jövö adásokat nézem, ott is csinálja, de nem mindegyiknél. Az antennaerősség minden esetben jó volt. Mit lehet vele csinálni? Ha kell, csinálok még fényképeket. Köszi, Karcsi
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.

EAG 782/a riaa korrektor hiba
üdv tanyalakók!

van a címben említett 2 db eag 782/a monoblokkom.
Egy kis ráncfelvarráson estek át, de bármikor vissza alakithatóak.
pl:aranyozott rca, hangfalcsatik....stb.
A problémám hogy a riaa korrektort használva olyan mintha valami gagyi lemezjátszót hallgatnám.
Teljesen dinamikátlan, mély hangok abszolút nincsenek, kőzép magas az viszont jó.
Elfelejtettem irni az elején , hogy az erősítők direkt módban vannak, tehát nagyszintü bemenettel tőkéletes.
Kondik cserélve ,a riaa korrektornak külőn be- ki rca bemenet van.
Viszont lenezjátszó nélkül enyhe gerjedés hallható, mintha nem lenne testelve
EF 86 csôvel van gyárilag.
Holnap rakok fel kèpeket.
Előre is kőszőnőm az épitőjellegü válaszokat.

Üdv:atis76
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