The Blinking LED Procedure
5.6.1 Introduction
The blinking LED procedure can be split up into two situations:
• Blinking LED procedure in case of a protection. In this case the error is automatically blinked.
This will be only one error, namely the one that is causing the protection.
Therefore, you do not have to do anything special, just read out the blinks. A long blink
indicates the decimal digit, a short blink indicates the units.
• Blinking LED procedure in the “on” state. Via this procedure, you can make the contents of
the error buffer visible via the front LED. This is especially useful for fault finding, when there
is no picture.
When the blinking LED procedure is activated in the “on” state, the front LED will show (blink)
the contents of the error-buffer.
Error-codes > 10 are shown as follows:
1. “n” long blinks (where “n” = 1 - 9) indicating decimal digit,
2. A pause of 1.5 s,
3. “n” short blinks (where “n”= 1 - 9),
4. A pause of approx. 3 s,
5. When all the error-codes are displayed, the sequence
finishes with a LED blink of 3 s,
6. The sequence starts again.
Example: Error 12 8 6 0 0.
After activation of the SDM, the front LED will show:
1. 1 long blink of 750 ms (which is an indication of the decimal
digit) followed by a pause of 1.5 s,
2. 2 short blinks of 250 ms followed by a pause of 3 s,
3. 8 short blinks followed by a pause of 3 s,
4. 6 short blinks followed by a pause of 3 s,
5. 1 long blink of 3 s to finish the sequence,
6. The sequence starts again.
5.6.2 How to Activate
Use one of the following methods:
• Activate the SDM or CSM. The blinking front LED will show the entire contents of the error
buffer (this works in “normal operation” mode).
• Transmit the commands “MUTE” - “062500” - “OK”
with a normal RC. The complete error buffer is shown.
Take notice that it takes some seconds before the blinking
LED starts.
• Transmit the commands “MUTE” - “06250x” - “OK”
with a normal RC (where “x” is a number between 1 and
5). When x= 1 the last detected error is shown, x= 2 the
second last error, etc.... Take notice that it takes some
seconds before the blinking LED starts
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