Troubleshooting Guide; Mpr/Spr/Mother Board - Panasonic KX-NS500AG Service Manual

9 Troubleshooting Guide

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
System Data Backup : PC Programming Manual
LED Check List
9.1.

MPR/SPR/Mother Board

Mother / CPU Board Chassis Startup Diag Test LED Pattern
No
1 Diag Test Start
2 Flash ROM Test NG2 (U-BOOT Error)
3 SDRAM Address Bus Test NG
4 SDRAM Data Bus Test NG
5 SDRAM Memory Cell Test NG
6 FPGA Diag Test NG / Code Load NG
SRAM Memory Cell Test NG
7
'4.13 Starting the KX-NSXXX'
'6.1 Tool - System Data Backup'
Item
ORANGE
RED Blink x 2
RED Blink x 3
RED Blink x 4
RED Blink x 5
RED Blink x 6
Amber Blink x 6
STATUS LED Blinking Pattern
23
CPU Board (MPR)
Mother Board
Remark
(60/min speed Red Blink) x 2 + 2sec Off
60/min
(60/min speed Red Blink) x 3 + 2sec Off
60/min
(60/min speed Red Blink) x 4 + 2sec Off
60/min
(60/min speed Red Blink) x 5 + 2sec Off
60/min
(60/min speed Red Blink) x 6 + 2sec Off
60/min
(60/min speed Red Blink) x 6 + 2sec Off
60/min
KX-NS500AG
2sec
2sec
2sec
2sec
2sec
2sec