Replacing The Exp I/O Pc Board; Replacing The Centro Pc Board - TEC B-680 SERIES Maintenance Manual

2. MAJOR UNIT REPLACEMENT EO18-33006

2.10 REPLACING THE EXP I/O PC BOARD

2.10 REPLACING THE EXP I/O PC BOARD
(1) Remove the two SM-3x6 screws to detach the EXP I/O PC board from the rear cover.
(2) Disconnect the harness from CN1 on the EXP I/O PC board.
EXP I/O PC Board
CN1
SM-3x6 Screw
Harness
Fig. 2-19
(3) Replace the EXP I/O PC board with a new one, then reassemble in the reverse order of removal.

2.11 REPLACING THE CENTRO PC BOARD

(1) Refer to Section 2.10 to detach the EXP I/O PC board.
(2) Remove the two SM-3x6C screws to detach the CENTRO PC board from the rear cover.
(3) Disconnect the harness from CN1 on the CENTRO PC board.
CENTRO PC Board
SM-3x6C Screw
CN1
Harness
Fig. 2-20
(4) Replace the CENTRO PC board with a new one, then reassemble in the reverse order of removal.
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