TROUBLESHOOTING AND REPAIR
UPDATING COMPENSATION MEMORY WITH MODULE EXCHANGE DATA 6-21.
After installing the A20 Attenuator/RPP, A8 Output, or A3 Sub-Synthesizer VCO
module exchange assemblies, the operator must load the data in the corresponding
compensation EPROM into the compensation memory. The module exchange
EPROM is installed in a socket on the Al3 Controller PCA. The compensation data is
transferred by one of three special functions, depending on which of the three
assemblies has been replaced.
Perform the following steps to update the compensation memory with the new module
exchange data:
1. Verify that power to the 6080A/AN signal generator is turned off.
2. Access the A13 Controller PCA as described by the access procedure in Section 5.
Leave the controller in place with all cables attached since it must be operational.
3. Install the module exchange EPROM into the socket on the controller labeled
U10.
4. Power up the 6080A/AN.
5. Remove the sticker labeled "CAL|COMP" from the rear panel and set the
CAL|COMP switch to the "1" position.
6. Verify that the CAL and COMP annunciators on the front panel are flashing.
7. Enter special function 961 to transfer the Attenuator/RPP data, special function
962 to transfer the Output data, or special function 963 to transfer the
Sub-Synthesizer VCO data.
8.Respond to the prompt "Att Sto?", "Out Sto?" or "Sub Sto ?" by pressing the
key.
The message "—Sto—" is displayed for 12 seconds for the attenuator, and 5
seconds for the output and Sub-Synthesizer while the data is transferred.
CAUTION
Do not turn the POWER switch off or change the CAL|COMP switch until the
store operation is complete. Doing so could damage the contents of the
compensation memory.
9. Set the rear panel CAL|COMP switch to the "0" position.
10. Verify that the CAL and COMP annunciators are no longer flashing.
11. Turn the power off and remove the module exchange EPROM, if desired.
12. Reassemble the instrument by reversing the disassembly steps.
6-7
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