No Keypanel Response - Dräger Narkomed 2B Service Manual

NM2B
START
CONNECT CABLES
TO J1 & J2 ON
PROCESSOR BOARD
Rev. A
RETURN TO THIS MANUAL'S TABLE OF CONTENTS
ARE
Y
DISPLAY PANEL
KEYS WORKING
PROPERLY?
N
ARE
N CABLES
CONNECTED TO J1 & J2
ON PROCESSOR
BOARD?
Y
REPLACE KEYPAD
AS OUTLINED IN
PROCEDURE 4.28
ARE
Y
DISPLAY PANEL
KEYS WORKING
PROPERLY?
N
REINSTALL ORIGINAL
KEYPAD
------------------------
REPLACE
PROCESSOR ASSEMBLY
AS OUTLINED IN
PROCEDURE 4.26
3-13
RETURN TO CD-ROM TABLE OF CONTENTS
TROUBLESHOOTING GUIDE (continued)
GUIDE 10: No Keypanel Response
ARE
Y
DISPLAY PANEL
KEYS WORKING
PROPERLY?
N
REINSTALL ORIGINAL
PROCESSOR ASSEMBLY
CONTACT NAD
SERVICE DEPT.
PERFORM A
COMPLETE PMS
ON UNIT
N
DOES UNIT
PASS PMS?
Y
UNIT IS
FUNCTIONAL