Fluke 6080A - Removing the A4 Sub-Synthesizer PCA 5-8.; Removing the A5 Coarse Loop VCO PCA 5-9.; Removing the A6 Mod Oscillator PCA 5-10.; Removing the A 8 Output PCA 5-11.

ACCESS PROCEDURES
Removing the A4 Sub-Synthesizer PCA 5-8.
1. Remove the #6 screws holding the top synthesizer module cover, and remove the
cover. (The #10 screws are adjustment-access screws and need not be removed).
2. Remove the #6 screws holding the PCA.
3. Carefully remove the A4 Sub-Synthesizer PCA.
Removing the A5 Coarse Loop VCO PCA 5-9.
WARNING
THE SYNTHESIZER MODULE, WHICH MUST BE RAISED TO GAIN
ACCESS TO THE A5 COARSE LOOP VCO PCA, IS HEAVY. WHEN RAISING
OR LOWERING THE MODULE, OBSERVE THE PROCEDURE DESCRIBED
UNDER THE HEADING "INTRODUCTION AND SAFETY" EARLIER IN
SECTION 5.
1. Raise the synthesizer module.
2. Disconnect RF cable W14 from the connector at the front of the synthesizer
module, and remove the nut and lockwasher from the connector.
3. Lower the synthesizer module.
4. Remove the #6 screws holding the top synthesizer module cover, and remove the
cover. (The #10 screws are adjustment-access screws and need not be removed).
5. Remove the #6 screws holding the PCA.
6. Carefully remove the A5 Coarse Loop VCO PCA.
Removing the A6 Mod Oscillator PCA 5-10.
1. Remove the #6 screws holding the top synthesizer module cover, and remove the
cover. (The #10 screws are adjustment-access screws and need not be removed).
2. Remove the #6 screws holding the PCA.
3. Carefully remove the A6 Mod Oscillator PCA.
Removing the A8 Output PCA5-11.
WARNING
THE SYNTHESIZER MODULE, WHICH MUST BE RAISED TO GAIN
ACCESS TO THE A8 OUTPUT PCA, IS HEAVY. WHEN RAISING OR
LOWERING THE MODULE, OBSERVE THE PROCEDURE DESCRIBED
UNDER THE HEADING "INTRODUCTION AND SAFETY" EARLIER IN
SECTION 5.
1. Raise the synthesizer module.
2. Disconnect RF cable W15 from the connector at the back of the output module,
and remove the nut and lockwasher from the connector.
3. Lower the synthesizer module.
5-5