Service manuals, schematics, eproms for electrical technicians
MWL V12-2 KINOVERSTARKER KINO AMPLIFIER
Type: 
(PDF)
(PDF)Size
963.2 KB
963.2 KB
Page
13
13
Category
AUDIO
SERVICE MANUAL
AUDIO
SERVICE MANUAL
If you get stuck in repairing a defective appliance download this repair information for help. See below.
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Good luck to the repair!
Please do not offer the downloaded file for sell only use it for personal usage!
Looking for similar mwl manual?
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- Also known:
MWL V-122 KINO AMPLIFIER V122 122 V12 V12-2
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Warning!
If you are not familiar with electronics, do not attempt to repair!
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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
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Relevant AUDIO forum topics:
Üdv
került hozzám egy Pioneer DEH-1800R típusú autóhifi
a tulaj elmondása szerinte át akarták rakni egy másik autóba és a régiben még működött, de az újban már nem, elmondása szerint nem kötötték el, csatlakozók ugye adottak..
elkezdtem méregetni, diódákat, V-okat, és azt találtam, hogy a Q921 Tranzisztor körüli V ok nem stimmelnek, a tranzisztor mérésre, jónak tűnik, de a bázisán és az elmenőén, nincsen meg a V, 0V van mind a 2 részén.
Alatta dióda mérésre jó, a Q923 SMD 4,5 lábán megvan a 14V de a 2.lábon semmi,
Most ezen a részen, azért nincs V, mert az Fő ic vezérli ezt a részt, vagy valami probléma van?
még néztem a végfokát, az úgy néz ki hogy jó..
Kérlek segítsetek, merre keressem a hibát?
Sniper
ui: Rajz: Itt
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 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
Because I did not found it and I was forced to buy, you get it for free!
https://mega.nz/#!RlpCxCRQ!zhVCwJnC3dDiYlJSmDqRMOVeLzL7soairMfFxsup61A
https://mega.nz/#!RlpCxCRQ!zhVCwJnC3dDiYlJSmDqRMOVeLzL7soairMfFxsup61A
Üdv. Szét szakadt a valamilyen szilikonos anyagból készült passzív hangszóró ennek a hifinek a dobozába . Mivel lehetne ezt kiváltani , mert eddigi kutatásaim alapján reménytelen a pótlása. 16,5 cm az átmérője de már 15cm-sel be lehet takarni a lyukat.
Amit találtam talán belefelfarghatónak még elfogatható áron , az a vidi utód HA 15 1544-618 .
Esetleg valami jobb ötlet , vagy tapasztalat jó e az a lágy szivacsos felfüggesztésű hangszóró ere a célra és mennyire változik a hangzás ilyen beavatkozás után.