Panasonic KX-T336 System Reference Manual page 535

2.00 Troubleshooting via the LED Indicators
When the system detects a problem, the alarm
LED indicator located on the top shelf will turn red.
(Refer to the figure below)
If the detected trouble is generated by a card, the alarm LED
indica?or on the
card will light up simultane-
ously.
(Refer to the table below)
When the trouble is cleared, the alarm LED indicator located on the top shelf goes off automatically.
LED Indicators on the Top Shelf
Panasonic
RUN OFFLINE ALARM
on 0
ON
LED indicators on the CPU card
0 <l>
0 45
1
Location of LED Indicators
LED on the Card
I
Possible contents Error Code
I
ON
(CPU<1 >)
System Down
. .
None
ON
(CPU&?>)
RAM OAXX
Calendar
0700
Backup Battery
ocoo
Clock
0300 .
ON
U-SW)
1 Progress Tone
1;
0600
I
1~~ C&&al Conference TSW I 0900 I
1 OHCATSW
!
Do00
I
ON
0-W
None
DTMF G/R for test
Link
Card Type Error
ROM
RAM
MODEM
Card is not installed
AC/DC Power Supply
FFFF
1 oxx
21xx
llxx
12xx
14xx
13xx
0410
0500
0510
I
SMDR Communication
I
OBOO
I
14-E-2