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MCMICHAEL 451S

AUDIO - SERVICE MANUAL
Type: (PDF)
Size
211.0 KB
Page
2
Category
AUDIO
SERVICE MANUAL
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Relevant AUDIO forum topics:
JBL 3 utas aktív hangfal, a táp nem indul.
Kérem,  asdf-jklé és Guest ne szóljon a topichoz!
Kérem kipcsak és dobos ne szóljon a topichoz!   Mindkettő kitiltva

Hi!
Tudnátok segíteni?
Szerencsétlenkedek ezzel:
https://elektrotanya.com/jbl_prx535.rar/download.html  

A tápja k.o. lett, a mély vég zárlata miatt.
Ki vannak véve a mély végFET-ek. 

A tápban cserélve U602, U603 A két IGBT a 4 meghajtó tranyója, a 10, és a 49,9R -ek.....
Illetve a 15V előállító részből kivettem az egyik MPSW42, mert k.o volt úgy, hogy 2 van csak benne.
A 15V control megvan, de az a Q610 felől jön.
Annyit csinál, hogy az IGBT-k G-jén kb 1 Hz-el 5Vpp jelet mérek......A secben a 4 MBR30-on semmi nem mérek...se delej, se zárlat...
A TL494 freki meghatározó elemei szerint kb. 300kHz körül kéne mennie. A rajzon nincs, de a c622 egy 10R keresztül megy a 5 lábra. A q612 is jó, de az mit csinál....???
Vagy a TL 494 qka?? Innen van:
https://www.hqelektronika.hu/termekek/tl494cd-pwm-controller-42v-250ma-16p-smd
Kösz. 
Clarion cdc6500r
Sziasztok! Keresem a fenti CD-s autórádió rajzát. Ha megvan valakinek legyen szíves feltölteni, vagy küldje el magánban. Köszönöm.
Onkyo TX-7430
Hello!! Ha valaki el tudná nekem küldeni az Onkyo Tx-7430 erősítő kapcsolási rajzát nagyon megköszönném :)
Pioneer VSX-LX102 not power on
Working on one of these, they say it was at Pioneer service center and
they claim its got a bad HDMI board. They wanted more than the product retailed for
to fix.

I cannot get it to power up, does not seem to be any standby power....they claim one day it just did not power up.
Cannot locate a SM.
 
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