BT Voyager 190 Modem Exposed

As part of our 'Exposed' series of articles we take a look at the popular BT Voyager 190 ADSL Modem. Whats inside? How does it work? What drivers are needed? All answered in our FREE article.

As part of our 'Exposed' series of articles we take a look inside the popular BT Voyager 190 ADSL Modem.

This picture shows what comes inside the box of the ADSL modem.

This picture shows the front view of the BT Voyager 190 ADSL modem.

This picture shows the back of the modem.

This picture shows the underside of the BT Voyager 190 modem.

This picture shows the hidden screws on the underside of the BT Voyager 190 modem.

This picture shows the BT Voyager 190 modem with the top cover removed.

This picture shows the components on the printed circuit board.

This picture shows the underside of the printed circuit board in the bt voyager 190.

This picture shows the 14 pin jtag header on the circuit board.

The unpopulated header marked J201 is very likely to be a JTAG header. The 14 pin header is usually used on ARM devices. The pinout of a 14 pin JTAG header is:

14 pin JTAG header
PIN	Name
1	VDDh +3V3
2	VSS GND
3	nTRST
4	VSS GND
5	TDI
6	VSS GND
7	TMS
8	VSS GND
9	TCK
10	VSS GND
11	TDO
12	nRESET OPTIONAL
13	VDDh +3V3
14	VSS GND

So the chances are, using this type of header under the finned heatsink is likely to be an ARM processor.

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