![background image](http://html1.mh-extra.com/html/bang-and-olufsen/beosound-3000-2671/beosound-3000-2671_service-manual_3765963052.webp)
5.4 Testmodes, English
TM20
Checking the display by showing 3 types of letters in 3 rounds until all pixels are
used/tested.
Press
PLAY
to shift between icons in the display.
TM21
Opens the signal from AUX-plug to the ML-output.
The display shows “AUX 2 ML”.
TM22
Test of key-board functions.
By pressing a key for instance
CD
the display will show “CD”.
The testmode can only be ended by IR-remote control command “STOP”.
This testmode can only be activated by IR-remote control command.
TM23
Read out of Software version. Press
PLAY
to continue.
AP xx.xxx = Application processor. (Main CPU)
OS xx.xxx = APOS
IO xx.xxx
= I/O processor
TU xx.xxx = Tuner processor. (Tuner-FEP)
CD xx.xxx = CD processor. (CD-FEP)
TM24
Service running counter.
First the Stand-by time will appear.
Press
PLAY
to toggle between the different counters.
- St. by time
- Radio-mode
time
- CD-mode
time
- AUX-mode
time
- ML active time
- Theft protection active time
Number of times the theft protection has been unlocked.
Number of times the product has been switched on/off.
All numbers are stated in interval of 10. (e.g. 3 = 30.)
When all counters have been shown the display will ask for a new test mode.
TM25
Opens ML-in.
A source must be selected to have a correct measurement.
Signal coming from the ML-in, exit on the PL and AUX as by normal selection.
ABO-CENTER
v/HENRIKSENS
ELEKTRONIK