Chapter 1 Troubleshooting; Progressing With The Troubleshooting; Troubleshooting Flow Chart - TallyGenicom 9045N Service Manual

The FIP makes the assumption that the printer controller (PWBA ESS) is functioning
normally. If the problem cannot be corrected by using the FIP, replace the printer
controller with a new one and check for proper operation.
Any OEM with unique specifications, or the direct control of any operation by the printer
controller, may cause the operation to be different from the description in this manual.
Troubleshooting in this manual assumes use of Diag. tools (maintenance tools).
However, the troubleshooting procedures allow for the case where the Diag tools are not
used. You can correct printer problems by using these procedures.

Chapter 1 Troubleshooting

1. Progressing with the Troubleshooting

After verifying the nature of the problem, proceed with the troubleshooting process efficiently, making
use of the Fault Isolation Procedures (FIPs), Operation of Diagnostics (Chapter 2), Wire connecting
diagrams (Chapter 7), and Principle of operation (Chapter 6).

1.1 Troubleshooting Flow Chart

Using the Troubleshooting Flow Chart, proceed as follows:
1 – 1
Chapter 1 Troubleshooting