The following layout is for the standard Grundig CD Head Unit.

Click on the picture to make larger. LED orientation is shown with a triangle pointing to the cut-out on the negative side of the LED. The screen is lit with side LEDs. SMT PLCC-2 LEDs can be used to replace these when mounted at 90 degrees - see picture at bottom of page for details. Observe correct polarity when soldering.

No. Type OEM Colour Function
1 PLCC-2 Warm White TP Button
2 PLCC-2 Warm White Audio Settings
3 PLCC-2 Warm White FM/AM Button
4 PLCC-2 Warm White CD Button
5 PLCC-2 Warm White Button '1'
6 PLCC-2 Warm White Button '2'
7 PLCC-2 Warm White Button '3'
8 PLCC-2 Warm White Button '4'
9 PLCC-2 Warm White CD Eject Button
10 PLCC-2 Warm White Tune Up Button
11 PLCC-2 Warm White Tune Down Button
12 PLCC-2 Warm White Volume Backlight
13 Side LED Warm White LCD Backlight

Detail of soldering PLCC-2 LEDs to replace side LEDs: