23
KX-NS500AG
9 Troubleshooting Guide
LED Check List
9.1.
MPR/SPR/Mother Board
CPU Board (MPR)
Mother Board
IMPORTANT NOTICE
NS300/500 CPU Board (MPR) has battery backuped SRAM,
and this SRAM is supplied by battery which is
equipped on Mother board.
Once CPU Board (MPR) is removed from Mother board,
'System Initialization' is required.
Please make sure
BEFORE REMOVING CPU BOARD (MPR) FROM MOTHER BOARD,
YOU MUST EXECUTE SYSTEM DATA BACKUP PROCEDURE.
OTHERWIZE SYSTEM DATA WILL BE LOST.
Please refer
System Initialization : Installation Manual
'4.13 Starting the KX-NSXXX'
System Data Backup : PC Programming Manual
'6.1 Tool - System Data Backup'
No
Item
STATUS LED Blinking Pattern
Remark
1
Di
ag
Test
S
t
a
rt
OR
A
NGE
(
6
0/
m
in speed Red Blin
k
) x
2
+
2
sec O
ff
(
6
0/
m
in speed Red Blin
k
) x 3 +
2
sec O
ff
(
6
0/
m
in speed Red Blin
k
) x 4 +
2
sec O
ff
(
6
0/
m
in speed Red Blin
k
) x 5 +
2
sec O
ff
(
6
0/
m
in speed Red Blin
k
) x
6
+
2
sec O
ff
(
6
0/
m
in speed Red Blin
k
) x
6
+
2
sec O
ff
S
R
A
M Me
m
ory Cell Test NG
Am
ber Blin
k
x
6
7
5
S
DR
A
M Me
m
ory Cell Test NG
RED Blin
k
x 5
6
FPG
A
Di
ag
Test NG / Code Lo
a
d NG
RED Blin
k
x
6
3
S
DR
A
M
A
ddress Bus Test NG
RED Blin
k
x 3
4
S
DR
A
M D
a
t
a
Bus Test NG
RED Blin
k
x 4
Mother / CPU Board Chassis Startup Diag Test LED Pattern
2
Fl
a
sh ROM Test NG
2
(U-BOOT Error)
RED Blin
k
x
2
6
0/
m
in
2
sec
6
0/
m
in
2
sec
6
0/
m
in
2
sec
6
0/
m
in
2
sec
6
0/
m
in
2
sec
6
0/
m
in
2
sec
Summary of Contents for KX-NS500AG
Page 21: ...21 KX NS500AG 5 Location of Controls and Components 5 1 Name and Locations ...
Page 24: ...24 KX NS500AG 9 1 1 Startup ...
Page 25: ...25 KX NS500AG ...
Page 26: ...26 KX NS500AG ...
Page 27: ...27 KX NS500AG ...
Page 28: ...28 KX NS500AG 9 1 2 Battery Alarm ...
Page 29: ...29 KX NS500AG 9 1 3 Using Voice Mail ...
Page 30: ...30 KX NS500AG Using Voice Mail continued ...
Page 34: ...34 KX NS500AG 9 2 3 41V are Not Output Only 15V is output ...
Page 35: ...35 KX NS500AG 9 2 4 Battery Backup Function Does Not Operate PSU can Not Charge Batteries ...
Page 43: ...43 KX NS500AG 11 3 3 Power Supply Board ...
Page 59: ...59 KX NS500AG 12 2 Memo ...
Page 73: ...73 KX NS500AG 12 5 Memo ...
Page 131: ...131 KX NS500AG 16 Appendix ...
