Tokheim Quantium 310 - Replacing the I;O Board or Mainboard

Maintenance Procedures - Electronics Quantium 310 Maintenance Manual
Page 5-10 Document Ref 941113-001 Rev 2
5.6 Replacing the I/O Board or Mainboard
Before starting the maintenance procedure, please refer to section 2.
Ensure the dispenser is isolated and all power is turned off.
The I/O Board and Mainboard are accessed from both sides of the calculator head (see
section 2.3 for the identification of the dispenser sides).
Tools required
•Replacement I/O Board or Mainboard (refer to the Parts Manual for exact part
identification)
•Flathead screwdriver
•Crosshead screwdriver
•Replacement W&M seals
•Wirecutters
•Long nose pliers
Description of Parts
INSTRUCTIONS
1) Follow the instructions given in section 2.5 to gain access to the calculator head.
2) Follow the instructions in section 5.9 to remove the Comms Board and IEB (where fitted).
3) DISCONNECT I/O BOARD CONNECTIONS (WHERE FITTED):-
•Locate the I/O cable security cover on side A of the calculator
head - refer to section 5.1.
•Break the W&M seal on the I/O cable security cover using
wire cutters.
•Using a flathead screwdriver, loosen and remove the single
screw on the I/O cable security cover. Remove the cover
completely and store in a safe position.
•Locate the connectors and cables on the back of the I/O Board.
Disconnect ALL connectors and cables from the board.
Note: Take care to note the position of the connector(s) on
the I/O Board.
WWC COVER
MAINBOARD
I/O BOARD
CABLE
COVER