USSR OCEAN 221.
(DJVU)148.6 KB
8
AUDIO
SERVICE MANUAL
Good luck to the repair!
Please do not offer the downloaded file for sell only use it for personal usage!
Looking for similar ussr manual?
No preview item for this file.
Possible causes:
- No preview picture generated yet.
- It is not a pdf file.
- Also known:
USSR OCEAN 221. 221
- If you have any question about repairing write your question to the Message board. For this no need registration.
- If the site has helped you and you also want to help others, please Upload a manual, circuit diagram or eeprom that is not yet available on the site.
Have a nice Day! - See related repair forum topics below. May be help you to repair.
If you are not familiar with electronics, do not attempt to repair!
You could suffer a fatal electrical shock! Instead, contact your nearest service center!
so you need WinZip or WinRar to open that files. Also some files are djvu so you need djvu viewer to open them.
These free programs can be found on this page: needed progs
If you use opera you have to disable opera turbo function to download file!
If you cannot download this file, try it with CHROME or FIREFOX browser.
A mellékletben levő 3.5 H tekercset ami fazékvasmagra van tekercselve mivel tudnám helyettesíteni? A tekercselést nem vállalja senki.
Fontos, hogy ha lehet kereskedelmi forgalomban beszerezhető legyen.
Ez egy lemezjátszó dübörgés szűrő áramkőr alkatrésze.
Ötlet, megoldás?
Ez így nem jó! Olvasd el a szabályzatot és a topikindító feletti bejegyzést!
Kalex
moderátor
Mod. Igazítottam a címen
Kalex
This is a compact design to I guess transfer the vinyl into MP3 format.
Complaint was when the arm was moved the tt dont spin, confirmed that as
theres a leaf switch to sense arm movement,
and its fed to a main pcb with all the IC's that I guess handle all the
stuff. The switch is ok, and I remember seeing 14V or so on the motor pins
frm the PCB, so I figured perhaps theres anough current to spin the motor and
focused on testing the motor.
Manufacturer does not supply the mainboard that feeds the motor but
the motor can be taken apart and after I opened it and
disconnected the small pcb fron the motor terminals and apply power
directly, it spins w 12v. theres a small electrolytic cap on the pcb 25V / 22uF and an
AN6652 4 pin T0-220 type case IC that I guess is some kind of speed control
circuitry.
The drive Motor is an EG-530-SD-3F, main board is stamped K-13007.
Gonna check the cap, but after searching this IC and its
applications with the motor, I see its popular and some drawings show how its used to regulate the 78,33
and 45 rpm speeds.
This drawing looks pretty much what I see in there:
https://tectronelectronics.eu/images/thumbnails/465/465/detailed/31/eg530.jpg
I have replaced the IC and the cap, but the motor still does not turn. The main pcb
is proprietary and cant be purchased, and I think it is giving the op-amp IC a reference signal.
Is there a way to bypass that signal or fool the IC to believing its on to test it out?
Photo showing the motor pcb :
http://www.mediafire.com/view/s79blgku1503mtg/HPIM0643.JPG/file
Photo of motor under test:
http://www.mediafire.com/view/thhgvcwac8al7gu/HPIM0635.jpg/file
A tárgybeli keverőpult adta meg magát, úgy, hogy egyszer csak elkezdett brummogni (váltó komponens gyanús).
Szétszedtem és a "+" 15V-os ágon mértem +14,22 egyen és 1,35 váltó feszültséget.
2200/25 kondi csere után, megszűnt brummogás, a plusz ág 14,88 V, a mínusz 15.12V
Okozhat e gondot ez a ~230 mV-os eltérés ?
Ugyanis előállt egy másik jelenség, ha megmozgatom az egyik panelt "sustorgás" hallatszik (csak a bal csatornán)
ami a kivezérlésen is megjelenik.Ellenkező irányba "feszítve" a panelt megszűnik.
Ez eddig soha nem fordult elő, félek nehogy előjöjjön magától a jelenség Istentisztelet közben.( a keverőpult templomban üzemel).
Üdv Jenő
or write your question to the Message board without registration.
You can write in English language into the forum (not only in Hungarian)!