The Blinking Led Procedure - Philips 7603 series Service Manual

The Blinking LED Procedure

Via this procedure you can make the contents of the error buffer visible via the front LED. This is especially useful when
there is no picture.
When the SDM is entered, the LED will blink the contents of the error-buffer.
Error-codes ≥ 10 are shown as follows:
− a long blink of 750 ms (which is an indication of the decimal digit),
− a pause of 1.5 s,
− n short blinks (n = 1 - 9),
− when all the error-codes are displayed, the sequence finishes with a LED blink of 3 s,
− the sequence starts again.
Example of error buffer: 12 9 6 0 0
After entering SDM:
− 1 long blink of 750 ms followed by a pause of 1.5 s,
− 2 short blinks followed by a pause of 3 s,
− 9 short blinks followed by a pause of 3 s,
− 6 short blinks followed by a pause of 3 s,
− 1 long blink of 3 s to finish the sequence,
− the sequence starts again.