Panasonic KX-T336 System Reference Manual page 459

Testing
sequence after dialing "90" is given below by using an example of PITS
model
KX-T123230.
In LED
test, " CIZII" means the light off, U II" means the
light on, " ze n
means flashing.
r ------------------
---
1
I
1) Testing the DN
button indicators and the ICM button
I
I
indicator for lighting in green.
I
I
%nasonlc
r LED TEST
I]
- DN buttons
u
i
I
I
I
I
I
I
I
I
I
I
I
I
I
I
I
I
1 2) Testing the DN button indicators and the ICM button I.
I
indicator for flashing in green.
I
I
I
I
I
i
I
I
I
I
I
I
I
I
I
I
I
I
I
Panascnlc
cl0
ocl
on
ICI
u
- DN buttons
I
I
I
I
I
I
-
CM
button
I
I
I
I
I
I
I
12-C-27