Veeder-Root TLS Series Manual

Also see for TLS Series: Application guide

Contents

Veeder-Root TLS Series Manual Manual pdf 27 page image

Wiring/Miscellaneous For TLS-IB Consoles W/RS-232 & With & W/O IFSF) Troubleshooting4-8TroubleshootingThis section contains information to help you diagnose system problems. Instructions are included for replacingCPU and Power Supply boards in the event of a hardware failure and for installing a software upgrade. Also, thelocation and use of the neuron service switch is discussed.At the end of this section you will find a list of specifications for the TLS-IB.REPLACING THE CPU BOARDThe CPU board must be replaced if the TLS-IB fails to communicate. Check the voltage between the GND and 5Vtest points [Figure 4-5] on the back of the CPU board. This voltage should be between 4.75 - 5.25 Vdc; if not,replace CPU board as follows.1. Turn Off power to the system. Attach the anti-static strap to your wrist and to a good ground.2. Disconnect the CPU cable from the Power Supply board. The CPU board snaps securely into place in thedoor of the TLS-IB without the use of screws. There are two tabs on the top of the board that fit into two slotsin the top edge of the door. The bottom of the CPU board snaps in place between two pairs of detentsprotruding from the bottom edge of the door. The CPU board is removed by inserting a straight-slotscrewdriver into one of the two indents on the bottom of the board and then gently prying against the dooruntil the board clears the upper detents, then rotating the board up slightly and toward you to clear the toptabs from the slots in the door.3. Replace the CPU board reversing the above steps.Figure 4-5. TLS-IB CPU BoardOFFC23+Y2U5 U29NODEADDRESSY3L15VTLS-IB CPU BOARDCable to PowerSupply Boardtlsnt\ibcpu.epsPROM chip (U29)Serial Comm/IFSFNode AddressDip Switch (S1)IFSF ROM(U5)S1G 8V These voltage test points are on the back ofthe CPU board (directly behind this upper leftcorner)STATIC SENSITIVE COMPONENTS!WEAR GROUNDED ANTI-STATIC WRISTSTRAP BEFORE HANDLING THIS BOARD!1 2 3 4OPEN