Fluke 6080A - Removing the A9 Sum Loop VCO PCA 5-12.; Removing the A10 Premodulator PCA 5-13.; REMOVING THE A11 MODULATION CONTROL PCA 5-14.

ACCESS PROCEDURES
4. Remove the #6 screws holding the bottom output module cover, and remove the
cover. (The number 10 screws are adjustment-access screws and need not be
removed).
5. Disconnect the RF cable which is part of the A8 Output PCA from the A10
Premodulator PCA.
6. Disconnect the two Mod Control-Output ribbon cables W33 and W35 from the
Output PCA.
7. Remove the #6 screws holding the Output Amplifier cover, and remove the cover.
8. Remove the #6 screws holding the Output Barrier.
9. Remove the remaining #6 screws holding the PCA. Do not remove the #4 screws
that are in the output amplifier area.
10. Carefully remove the A8 Output PCA.
Removing the A9 Sum Loop VCO PCA 5-12.
1. Remove the #6 screws holding the bottom output module cover, and remove the
cover. (The number 10 screws are adjustment-access screws and need not be
removed).
2. Remove the plug-in capacitor C1 between the A10 Premodulator PCA and the A9
Sum Loop VCO PCA.
3. Remove the #6 screws holding the PCA.
4. Carefully remove the A9 Sum Loop VCO PCA.
Removing the A10 Premodulator PCA 5-13.
1. Remove the #6 screws holding the bottom output module cover, and remove the
cover. (The #10 screws are adjustment-access screws and need not be removed).
2. Disconnect the RF cable, which is part of the A8 Output PCA, from the A10
Premodulator PCA.
3. Disconnect the Mod Control-Premodulator ribbon cable W34 from the A10
Premodulator PCA.
4. Remove the plug-in capacitor Cl between the A10 Premodulator PCA and the A9
Sum Loop VCO PCA.
5. Remove the #6 screws holding the PCA.
6. Carefully remove the A10 Premodulator PCA.
REMOVING THE A11 MODULATION CONTROL PCA 5-14.
1. Remove the #6 screws holding the bottom output module cover, and remove the
cover. (The #10 screws are adjustment-access screws and need not be removed).
2. Disconnect the Mod Control-Premodulator ribbon cable W34 from the A11 Mod
Control PCA.
3. Disconnect the two Mod Control-Output ribbon cables W33 and W35 from the
A11 Mod Control PCA.
4. Remove the #6 screws holding the PCA.
5. Carefully remove the A11 Modulation Control PCA.
5-6