Table D-3. Led Error Codes - Tektronix FiberMaster TFP2A Service Manual

Appendix D: Error Codes
Power-On Diagnostic Error Codes
During the first phase of power-on diagnostics, the front-panel LEDs indicate which
part of the test sequence is running. The LED code is flashed just prior to starting the
specific test, so if the instrument halts, the pattern displayed reflects the test that
failed. The pattern codes are as follows:
Table D-3: LED Error Codes
Off
Off
Off
Off
Off
Off
Off
Off
On
On
On
On
On
On
On
On
Off
D-4
REMOTE REFERENCE
LED LED
Off
Off
Off
On
Off
On
On
On
Off
Off
Off
Off
On
On
On
On
Off
CURRENT WINDOW
LED LED
Off Off
Off On
On Off
On Off
On On
Off Off
Off On
On On
Off Off
Off On
On Off
On On
Off Off
Off On
On Off
On On
On Off
TFP2A FiberMaster Module-Level Service Manual
Error Condition
Self test complete
LED bus error test
Unused
Parallel port test
Core RAM test
Shared RAM test
Display processor test
Comprehensive RAM test
Floating point coprocessor
test
Serial port test
Serial port test complete
Unused
Status register bus error
test
Unused
Unused
Initial LED write/read
verify test
Normal power-up/init
complete