Service manual

TP0332/2 3.17
Four function keys are located below the display:
Legend Function
M Activate menu
– Scroll down through channels (or menu, if active)
+ Scroll up through channels (or menu, if active)
OK Confirm choice or action (ie. Enter).
The SRP8030 has 12 additional keys (supported by the daughter board) arranged as a DTMF
keypad.
Figure 3.12 Keypad and Function Keys
Backlighting
The LCD and keypad backlighting LEDs, D904 to D918, are turned on by the processor port signal,
BLITE, via driver TR909.
–
OK
+
1 32
4 65
7 98
*
#
0
M