Honeywell bendis king KLN 94 Maintenance Manual page 74

BENDIX/KING
J. RF Cable Assembly Removal
1. Perform steps outlined in step A.
2. Remove Xpress Cover (047-10752-0000) from GPS Xpress Receiver (205-
00891-0002).
3. Remove RF Cable Assembly (155-02811-0004) connector from J502 of the
GPS Xpress Receiver Assembly.
4. Remove two fasteners (089-06004-0003) securing RF Cable Assembly (155-
02811-0004) connector to rear of the Top Cover (047-12426-0006).
5. Cable assembly is now loose and can now be removed.
K. Main Board Removal
1. Perform steps outlined in steps A, C, G, H, and I.
2. Remove five screws (089-05878-0004) securing Main Board (200-09638-
0001) to Top Cover (047-12426-0006).
3. Remove four fasteners (089-06008-0004) securing Main Board connectors
J941 and J942 to the rear of the Top Cover.
4. Remove 4 hex spacers (076-00322-0009) that mount the GPS Xpress board
to the main board.
5. Lift Main Board assembly up and remove from Top Cover.
5.3.5 ASSEMBLY
Assembly should be performed in the reverse order of the disassembly procedures.
5.4 TROUBLESHOOTING
This troubleshooting section is intended as a guide for the technician in isolating a malfunction of
the KLN 94. Before troubleshooting the unit, a thorough understanding of the Theory of Operation
should be accomplished. The technique of fault finding through elimination should be used as a
basis in locating the trouble area.
Before any troubleshooting procedures are applied, perform a bench check to determine if the unit
is the source of the problem. If it is, determine in which assembly the problem lies. Once the prob-
lem section has been determined , consult the troubleshooting flowchart and schematics for infor-
mation pertaining to repair.
Rev 0, Sept/2000
CAUTION:
DO NOT ATTEMPT TO TROUBLESHOOT THE
GPS XPRESS RECEIVER BOARD. THIS IS A
FACTORY SERVICEABLE ITEM ONLY.
15599M00.JA
KLN 94
Page 5-35