Service manuals, schematics, eproms for electrical technicians

BW DM220

AUDIO - SERVICE MANUAL
Type: (PDF)
Size
1.4 MB
Page
7
Category
AUDIO
SERVICE MANUAL
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  • Also known:
    BW DM-220 DM220 DM 220
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Relevant AUDIO forum topics:
Subwoofer Polk Audio PSW 111 resistor values and SOT23 type or schematic power supply
Hello.

Help my find resistor values and SOT23 type or schematic power supply of Subwoofer Polk Audio PSW 111
Top view

Resistor marking RED
Bottom view

Resistor marking RED, SOT23 marking BLUE
Submodule

Thanks
Trust Titan 2.1 Subwoofer láda átalakítása mobiltelefon erôsítôvé [MEGOLDVA]
Sziasztok!
Lomiztak csak egy Subwoofert, ezt kellene átalakítanom mobiltelefonról való zenehalgatásra.
A Basszus MC4558 és TDA2030. A hangszóró 60W/4 ohm φ200. Rajzot nem találtam így egy hasonlót csatolok.
MC4558 nál próbáltam a pin1 kimenetet összekötni direkt a második OP bemenetével de nincs hang csak basszus kattogás. Lekötöttem a pin5,pin3 okat  (IN+) GND-re , de szintén semmi maradt a basszus és nagyon halk is lett

Mit módosítjak hogy jó legyen?


(PHASE kapcsolo nincs benne, most itt ugy kell tekinteni mintha 180° állásban lenne)

 
JBL SB250 subwofer panelon sérült IC azonosítása
Sziasztok!
Fenti panelon az L102 mellett és a D101 fölött megégett 8 lábú smd eszköz van.Dc konverternek gondolom.Ami olvasható rakta 5.31.  5 AM.   7K.
Tud valaki segíteni? Üdvözlettel Reparator1
Incorrect schematic in db : Polk PSW10 subwoofer

Hi,
I registered mostly to flag this issue :

- current database has this file
https://elektrotanya.com/polkaudio_psw10_sch.bmp/download.html

which is a completely unrelated schematic that is NOT for the PSW10.

- I uploaded a better schem :
https://elektrotanya.com/polk_psw10_schem.png/download.html

but currently it's (incorrectly) shown as a duplicate of another schem on this page:
https://elektrotanya.com/show_rawsch

Is it marked as a dup simply because the filesize matches ?
 

Best regards.

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