TR
OUBL
ESHOO
TING AND DIAGN
O
STICS
CHE
CKIN
G PR
OCESS
CON
T
ROL
IN
TEG
R
ITY
6 -
2
Figure 6-1. Troubleshooting Flowchart
Y
Y
Y
N
N
N
N
TP80416A
RESEAT ALL
CONNECTORS
LIGHTS ON BUT
NO RESPONSE
REFER TO CTT01/02
INSTRUCTIONS FOR
ERROR CODES
PUT UNIT IN
CONFIGURE MODE
DETERMINE AND
CORRECT ERROR
EXECUTE MODE
CHECK MODULE
ADDRESS SCREEN
HANDHELD
CTT REPORTS
ERROR?
SEE
NOTE
PRESS RESET
BUTTON
RETURN TO BAILEY
FOR REPAIR
Y
Y
N
N
UNIT IN
CONFIGURE
MODE?
CHECK MODULE
BUS CONNECTIONS
TO ALL UNITS ON
THE BUS
ENTER
CONFIGURATION -
PUT IN EXECUTE
CHECK MODULE
BUS TOTAL LENGTH
DISCONNECT
MODULE FROM BUS
TRY DIFFERENT CTT
UNIT INSTALLED
PROPERLY
N
Y
Y
N
Y
Y
N
HANDHELD
CTT REPORTS
ERROR?
FACEPLATE
LIGHTS UP?
CHECK FUSES -
RESEAT BOARDS
AND CONNECTORS
CHECK 120/220 VAC
SETTING ON POWER
SUPPLY BOARD
CHECK 120/220 VAC
SETTING ON POWER
SUPPLY BOARD
CHECK FIELD WIRING
FOR SHORTS
CHECK FIELD WIRING
FOR SHORTS
RESTART OR REPLACE
POWER SUPPLY BOARD
CONTINUE
START-UP
CONTINUE
START-UP
RESTART UNIT
HANDHELD
CTT REPORTS
VACANT?
NOTE: ERROR REPORTED VIA PRESSING F4-DIAGNOSTICS OR
VIA STATUS BYTES. PRESS F3 WHEN MODULE STATUS SCREEN
IS DISPLAYED FOR STATUS BYTES.
FUSE GOOD?
REPLACE FUSE
24 VDC
SUPPLY
GOOD?
CHECK INSERTION OF
BOARDS AND RIBBON
CABLE INCLUDING
POSITION OF CABLE
RESTART
UNIT - IS IT
GOOD?
MAIN BOARD BAD -
RETURN TO
BAILEY
RETURN TO BAILEY
FOR REPAIR
FUSE
BLOWS
AGAIN?