Understanding The Self-Test Facility - HP 8133A Service Manual

Understanding the Self-Test Facility

Message
E O O O NO ERROR
KEY JAMMED
pressed,
UNKNOWN INSTRUMENT OP'l'ION
E002
NO TIMING BOARD
E003
NO WIDTHl BOARD
E004
NO TIMING
E006
E006 WRONG
E007 CAN NOT LOCK
FREQUENCY COUNTER ERROR
NO CALDATA ON TIMING BOP.RD
NO CALDATA ON WIDTHl B0.4RI:
NO CALDATA
E012 NO CALDATA ON DATA B O A R D -
~-
The Self-Test function operates when the HP 8133A Pulse Generator
is first switched on, providing there are no faults preventing its
operation.
The self-test messages and their meanings are listed below:
Displayed Text
Self-test was run successfully and no errors were found
A key on the front-panel keyboard is being continuously
or is jammed
An option has been implemented that is not acceptable
Self-test cannot find a timing board (unlikely to be seen)
Self-test cannot find a widthl board (unlikely
WIDTH BOARD Self-test can find neither width nor timing boards (unlikely
TIMING Self-test finds the wrong timing board in the instrument (unlikely
BOARD
The
The frequency counter is giving an incorrect reading
There is incorrect output or no output from the timing board
There is incorrect output
There is incorrect output
ON WIDTH2 B0.4RE
There is incorrect output
The following faults are "fatal" and are unlikely to be encountered
during normal operation,
instrument, preventing the self-test facility from operating:
Displayed Text
RAM error (U10 and/or U11) RAM faulty (Either U10 and/or U11)
RAM error (UlO)
RAM error (U.11)
EPROM checksum error
MFF' error
Keyboard controller error
Meaning
is out of range (faulty) and cannot be locked
or no output from the widthl board
or no output from the width2 board
or no output from the data board
as
they usually cause complete failure of the
Meaning
Incorrect checksum (faulty RAM
Keyboard giving incorrect output or no outpul
to be seen)
to be seen)
be seen
or ROM)
4-21
Troubleshooting