HP 8559A Operation And Service Manual page 223

8-29.
Figure Frequency Control Assembly
Below Make t h e following changes i n f u n c t i o n block (A):
Frequency Control Assembly A7, Schematic Diagrar (2 of 2)
Figure 8- 29.
Below Replace Figure 8-29 (2 o f 2 ) w i t h new F i g u r e 8-29 ( 2 o f 2 )
Below Make t h e following changes t o F i g u r e 8-29 (2 o f 2 ) (SERIAL PREFIX
A7,
Delete R99.
Connect pin 7 of UlOB t o pin 10 of U1OC.
(SERIAL PREFIX 2236A) included i n t h i s Manual Backdating
supplement.
Change A7 t o H P P a r t Number 08559-60021.
Replace f u n c t i o n block (El with P/O F i g u r e 8-29 (SERIAL PREFIX
I n f u n c t i o n block (GI, d e l e t e C14 and R102.
Schematic Diagram of 2) (CO ~'~)
G