Dell Surround Sound MMS-5650

[Robi345]

I need the "center speaker" wiring schematic of the Dell MMS-5650. This unit has game inputs (three 2-channel mini plugs) feeding to the subwoofer. The subwoofer box has the 5-channel amp w/ connections on the back for:
- center channel speaker (DB-9)
- front left & right speakers (RCA phono jacks)
- rear left & right speakers (RCA phono jacks).
I only have the subwoofer (purchased from a Goodwill store) and I need the wiring schematic for the DB-9 connector on the subwoofer that connects the "center channel" box. I presume the center channel has an on/off switch, volume control and possibly balance?
Thanks,
Robi

[Lando]

I do not have the schematic, but I can tell you that the center has an on/off volume control. I am looking for the schematic also, because my MMS5650, which is a complete set, cuts out a few dB every now and then and so far I haven't been able to identify whether the problem is in the center or in the sub.

[Robi345]

Lando,
Thanks. I've since gutted the subwoofer box and am driving the box with a different amp.

As for your problem, if all channels are dropping in volume, I'm guessing that the input mini-plug (or even the DB-9 plug) has a contact problem. Suggest applying just a bit of light-weight oil to all pins, then work the plugs in & out to distribute the oil. Hope this helps.

[DallasCajun]

I to have the same problem with the volume dropping way down, I have openned the box and it may be an power amp or vreg problem from the transformer? Anyone having the same problem let me know.
DallasCajun.



Lando,
Thanks. I've since gutted the subwoofer box and am driving the box with a different amp.

As for your problem, if all channels are dropping in volume, I'm guessing that the input mini-plug (or even the DB-9 plug) has a contact problem. Suggest applying just a bit of light-weight oil to all pins, then work the plugs in & out to distribute the oil. Hope this helps.