The Thomson Speedtouch 330 is one of the most popular ADSL USB modems supplied by ISP's. When you sign up this is what you are likely to receive if you are not sent a wireless router. The slimline model of the Speedtouch 330 ( the model featured in this article ) was designed such that when packaged in its shipping box it could fit through a letterbox.
In the box that will be posted through your letterbox will be;
- Thomson Speedtouch 330 ADSL USB Modem
- 1.8m RJ11 ADSL lead
- Microfilter
- Driver and Application Setup CD/DVD
- Possibly a welcome letter or quick start guide
The unit itself has two status led's on the topside marked USB and ADSL. The modem driver is installed as a dial up device rather than a networking device.
To open the casing first the torx screw needs to be removed. This is hidden under the rubber pad on the rear underside of the modem. Turn the modem upside down and near the MAC address sticker gently peel away the rubber pad. The torx screw is located centrally underneath that pad.
Once the torx screw is removed from the Speedtouch 330 the casing can be separated with the help of a small flat blade screw driver or letter opener or similar. There are 4 plastic clips holding the top of the casing to the bottom of the casing, 2 on each side near the corners. Hold the Speedtouch modem on its side and carefully prise apart the clips. When you have done one side then flip the modem over and release the 2 clips on the other side.
This shot is taken with the plastic clips released and the top and bottom parts of the casing separated.
Stamped on the inside of the top part of the Speedtouch 330 casing is a manufacturing date code.
The Speedtouch 330 contains few components on the printed circuit board. This picture shows the topside with the USB connector and ADSL RJ11 connector on the right hand side.
This picture is of the underside of the Speedtouch 330 printed circuit board. The underside does not contain any integrated circuits, only discreet components.
Integrated circuits as follows;
- U1 ESMT M12L16161A-7T AZH1P6266
Manufacturer: Elite Semiconductor Memory Technology Inc.
1Mb x 16 ( 16Mb ) SDRAM 3v3 143MHz 50L-TSOPII
Manufacturers Website | Datasheet - U2 5100A TM10361 3806
- U3 5200A HJNKY.00 3406
- U4 BB OPA2677U 69COE
Manufacturer: Burr-Brown
Dual, Wideband, High Output Current Operational Amplifier SO-8
Manufacturers Website | Datasheet - U5 Not Fitted
- U6 LORA SOT223
- U7 LAYA SOT223
- U8 LDOB SOT223
- U9 Not Fitted
- U10 ST M93C66WP
Manufacturer: STMicroelectronics
4kbit Microwire Serial Access EEPROM 2.5V-5V SO-8
Manufacturers Website | Datasheet - U11 WG08
- U13 Not Fitted
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