Download Manual (380k PDF) - Lindos Electronics

1.0
Introduction to the MS10 and MS1
The MS10 is a complete portable Audio Test Set that combines the functions
of an Oscillator (Signal Generator), Level Meter, Peak Programme Meter,
Noise Meter and Distortion Meter, along with Frequency, Phase, and tape
speed measurement, in one small hand-held unit that can be used on its own
or with a computer running the ‘Lin4Win’ support software (supplied free).
Its main feature though is ‘Sequence Testing’, introduced by Lindos twenty
years ago in the LA100 test set, and universally used by broadcasters and
studios for routine quality assurance ever since. It takes just two button
presses (SEQ followed by 3 for example) to run a typical test sequence that
can quantify any audio system in terms of levels, frequency response, phase,
distortion and noise in as little as twenty seconds, with results stored in the
unit. If a PC is connected, running Lin4Win, an impressive results sheet with
graphs and pass/fail tolerance testing appears immediately on the screen
ready to save, print, or even publish to the Web on our Test Sheet Database
for all to see! Because sequence tests carry (FSK) coded information they are
self-synchronising and fully automatic, even between any two MiniSonic units
on opposite sides of the world!
The emphasis throughout is on subjectively meaningful tests and one set of
quality standards, with only quasi-peak weighted (ITU-468) measurement of
both noise and distortion residue supported. This gives readings that are
pretty representative of what you will hear, whether you are testing a CD
player, an amplifier with crossover distortion (long considered impossible to
quantify - but we don’t agree), or a loudspeaker. With comparable
measurements, and a database fed by you, the user, we aim to challenge
much of the hype and make-believe that has taken over the audio world.
The MS1 is simply an MS10 with sequence reading disabled (except for a
sweep), sold at a price that is more affordable by schools and enthusiasts. As
sequence generation (which includes some LA100 compatible sequences) is
not disabled, it can also function as a low-cost generator for use with the
MS10 or LA100. The MS1 is easily upgraded to an MS10 by plugging in a new
firmware chip behind the removable ‘chiplid’ on the front panel.
1.1
Getting Started
Most users will not want to read through this manual, which is laid out as a
comprehensive reference guide, before getting started, so we suggest working
through the following brief tutorial as a quick way of becoming familiar with the
essentials.
1 Connect the Osc (output) and Input sockets together, using the Unison to
XLR leads provided, and Set the MIC/LINE toggle switch to LINE. If you are
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