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I could not locate a public schematic or service manual for the Canton AS 105 SC. The public sources I found point to a user/flyer-type document and specification pages, not to the amplifier schematic itself. HiFi Engine lists the model and shows only “flyer” downloads for the AS 105 SC, while Hifi-Wiki and similar pages provide only technical data. (hifiengine.com)
What is available publicly:
If your goal is repair, the most realistic paths are:
For this model, the documentation that appears publicly accessible is consistent with what is common for consumer active subwoofers: sales literature and owner information are available, but circuit-level service material is not. On the HiFi Engine page for the AS 105 SC, the downloadable items shown are flyers, not a schematic or service manual. (hifiengine.com)
The AS 105 SC itself is identified as an active bass-reflex subwoofer from around 2006–2007, with a 100 W amplifier, 22–200 Hz response, adjustable crossover in the 55–200 Hz range, 260 mm woofer, and 16 kg weight. Those details are useful because they help frame the likely internal architecture even if the exact schematic is unavailable. (hifi-wiki.de)
From an electronics-service perspective, an active subwoofer of this class typically contains these functional blocks:
Mains power supply
Input / filter / level stage
Power amplifier stage
Protection / standby logic
Without the exact AS 105 SC schematic, the practical repair method is usually:
That approach is technically sound even when the official drawing is unavailable.
The current public documentation footprint for the Canton AS 105 SC appears limited to:
This is consistent with a broader industry trend: many loudspeaker manufacturers, especially for legacy consumer products, do not publish full service schematics publicly and instead route repair through service channels or board-level replacement.
| Parameter | Value |
|---|---|
| Model | Canton AS 105 SC |
| Type | Active bass-reflex subwoofer |
| Amplifier power | 100 W |
| Frequency response | 22 Hz to 200 Hz |
| Adjustable crossover | 55 Hz to 200 Hz |
| Woofer | 1 × 260 mm aluminum |
| Dimensions | 295 × 505 × 430 mm |
| Weight | 16 kg |
| Era | around 2006–2007 |
These values are reported across the public model pages I found. (hifi-wiki.de)
If the unit is faulty, the absence of a schematic does not make repair impossible. In practice, you can still diagnose it by symptom:
Completely dead
Powers on, no sound
Hum / rumble / distorted bass
Auto-on not working
If you open it, basic lab safety is essential.
If you want the closest practical substitute for the schematic, do this:
Remove the amplifier plate and photograph:
Note the exact fault:
Measure and report:
Read off the PCB numbers:
With that information, I can help you reconstruct a functional schematic/block diagram and guide the troubleshooting sequence.
If you want to proceed efficiently, the next best steps are:
For the Canton AS 105 SC, I could find public specs and flyer/manual-style documentation, but not the actual schematic/service manual. The best verified public sources are HiFi Engine and Hifi-Wiki, and both support the model identification and specifications rather than circuit documentation. (hifiengine.com)
If you want, I can now help in one of two ways:
