Sunday, December 30, 2007

Resolving the Fan Noise

I removed the cover of the XA2 to find out what parts were making all the noise. I assumed it was the fan, but I also wanted to check the power supply to make sure it was not humming. When I removed the fan, the XA2 became almost completely quiet. The drive only makes a whisper, so if I can find a better fan, that should resolve the noise issue. I added some pictures of the insides of the XA2 with the fan removed.

The original fan is a Delta DSBO512LD.

The Toshiba part number description from the service manual is : FAN1 P000477470 FAN DC, DSB0512LD-6T10. The fan that I ordered as a replacement was an ADDA AD5012LX-D70. The spec's are very similar, so now it is a matter of waiting for the replacement to arrive, terminate it with a 2-pin connector, and check the noise levels. I measured the current fan at 55 dB using a RS digital sound meter positioned 1 inch above the center of the player with the microphone pointing towards the rear wall of the rack.

The spec's on the replacement fan:

Noise: 23.6 dB
Airflow: 10.8 CFM
Housing Material: Glass Reinforced TP
Power Rating: 0.96 W
Speed: 3600 RPM
Supply Voltage: 12 VDC
Termination Style: Wire
Product Category: DC Fans
Bearing Type: Hypro
Current Type: DC
Frame Dimensions (mm): 50 mm x 15 mm

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