I C - 7 5 6 P R O A l i g n m e n t P r o c e d u r e
P L L B o a r d
Reference Oscillator
- Connect Frequency counter to P81 on the PLL board
- Adjust L53 and R33 for 64.000000MHz
- Connect RF volt meter to P81 on the PLL board
- Adjust L81 and L82 for maximum level
-
LPL A
- Set display to 0.0300000MHz, LSB
- Connect multi-meter to check point LPA
- Adjust C154 for 2.0V
VCO A
- Connect multi-meter to check point LVA
- Set display to 7.999999MHz, USB
- Adjust C278 for 4.3V
- Set display to 19.999999MHz, USB
- Adjust C258 for 4.3V
- Set display to 44.999999MHz, USB
- Adjust C228 for 4.3V
- Set display to 60.000000MHz, USB
- Adjust C208 for 4.3V
