Product category:
ATE Systems
News Release from: JTAG Technologies | Subject: JT 3705/USB
Edited by the Electronicstalk Editorial
Team on 12 March 2008
Boundary scan verifies audio console
quality
DiGiCo uses boundary-scan test to verify the assembly of the 10-layer surface-mount PCB at the heart of its audio mixing consoles.
Surrey-based professional audio mixing consoles manufacturer DiGiCo has added JTAG/boundary-scan test to its latest generation product range, following its selection of JTAG Technologies and its well-proven application development and runtime solutions DiGiCo is world-renowned for its high quality audio mixing solutions, which have been used at major events such as Live 8, Live Earth and Concert for Diana, on world tours for Madonna, Aerosmith and Take That, and for numerous West End and Broadway productions
This article was originally published on Electronicstalk on 9 Nov 2007 at 8.00am (UK)
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The manufacturer used JTAG Technologies' ProVision boundary-scan application development tool and the recently announced JT 3705/USB twin-TAP (test access port) hardware to aid the development and to test its SD7 audio console.
The console is assembled in Glenrothes, Scotland, with the PCB manufacture and test performed by a local CEM.
The unit has just one, high-density PCB, compared with the 10 PCBs the previous generation required.
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The SD7's PCB's main components are a single 1500-ball FPGA and three 500+ ball TigerSharc DSPs.
DiGiCo's Technical Director, John Stadius, comments: "It's a 10-layer PCB with virtually all surface-mount components, and testing via boundary-scan is the only sure means of verifying assembly".
Three boundary-scan chains are designed into the SD7's PCB, two of which are for reaching the DSPs and the third is dedicated to the FPGA.
In addition, Flash memory is programmed via one of the DSP's boundary-scan chains.
Stadius continues: "The sophisticated nature of our products requires precise production process monitoring".
"By including JTAG/Boundary-scan testing in the loop we can provide both feedback to our production lines and detailed fault information to fix any structural problems on our densely populated PCBs".
Very high test coverage has already been obtained but DiGiCo plans to push the envelope further using adapted headers and edge connectors.
Ian Saunders from JTAG Technologies notes: "As JTAG testing becomes more affordable we are seeing increased interest from all spheres of the electronics world".
"Working with DiGiCo has been something of a departure from the norm but a very interesting one".
"I am pleased that we were able to satisfy the company's needs in a timely and cost-effective manner".
Stadius concludes: "We chose JTAG Technologies over other suppliers as they have a high-performance product, a long history of success in the test arena and provide the best levels of technical support by far". Request a free brochure from JTAG Technologies ...
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