Troubleshooting
PROM Chip Replacement (Software Upgrade)
63
PROM Chip Replacement (Software Upgrade)
The PROM chip is replaced when a software upgrade is installed. This procedure requires that you perform a
RAM clear.
1. If possible, record the current setup information. Turn off power to the system.
2. Open the front door of the console. The CPU board is installed in the door.
3. Attach anti-static strap to your wrist and to a good ground.
4. Disconnect the CPU board cable from the Power Supply board. Remove the CPU board following the
instructions in “Replacing the CPU Board” on page 61.
5. Locate the PROM chip on the board [Figure 24].
6. Remove the PROM chip following instructions in Figure 25.
7. Replace the PROM chip following instructions in Figure 26.
8. Replace the CPU board in the front door of the TLS-50. Connect the CPU board cable to J1 on the Power
Supply board.
9. Follow the cold boot instructions for your console type beginning on page 20.
OFF
Содержание TLS-50 Series
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