HP 8559A Operation And Service Manual page 222

Pages 8-67 through 8-81/8-82:
Table 8-4. Frequency Control Assembly A7, Replaceable Parts
Replace Table 8-4 w i t h new Table 8-4 (SERIAL PREFIX 2236A)
Below
Make t h e f o l l o w i n g changes t o new Table 8-4 (SERIAL PREFIX
Below
Below Delete A7R99.
Figure 8-28. Frequency Control Asserbly A7, Component Locations
Below Replace F i g u r e 8-28 with new F i g u r e 8-28 (SERIAL PREFIX 2236A)
Replace F i g u r e 8-28 with new F i g u r e 8-28 (SERIAL PREFIX 2208A)
Below
Add t h e f o l l o w i n g t o F i g u r e 8-28 (SERIAL PREFIX 2208A):
Below Delete A7R99.
Figure 8-29. Frequency Control Assembly 67, Schematic Diagram
Below Replace F i g u r e 8-29 ( 1 o f 2 ) with
Below Make t h e f o l l o w i n g changes t o F i g u r e 8-29 (1 o f 2 ) (SERIAL PREFIX
i n c l u d e d i n t h i s Manual Backdating supplement.
Change A 7 t o H P P a r t Number 08559-60021, Check D i g i t 7.
Add A7C1 and A7C2, H P P a r t Number 0180-2208,
CAPACITOR- FXD 220UF +-lo% lOVDC TA.
Add A7Cl1, H P P a r t Number 0160-2055, Check D i g i t 9 , CAPACITOR-
.
F X D
Delete t h e following:
Change A7R30 t o H P P a r t Number 0698-3428,
RESISTOR 14.7 1% .125W F TC=O+-100.
Change A7R31 t o H P P a r t Number 0757-0199,
RESISTOR 21.5K 1% .125W F TC=O+-100.
Add A7R98, H P P a r t Number 0757-0465,
Delete t h e following:
Add A7W1, H P P a r t Number 8159-0005,
P V C 1x22 80C.
included i n t h i s Manual Backdating supplement.
included i n t h i s Manual Backdating supplement.
Add C12 between TP2 and t h e n e g a t i v e
Add R99 t o t h e l e f t o f TP7.
(SERIAL PREFIX 2236A) included i n t h i s Manual Backdating
supplement.
:
Change A 7 t o H P P a r t Number 08559-60021.
I n f u n c t i o n block (A), add R98, 100K, a s follows:
Open t h e FM/MAIN l i c e a t t h e l e f t s i d e o f
Connect one s i d e o f R98
Connect t h e o t h e r s i d e o f R98 t o t h e FM/MAIN l i n e .
A7
Check D i g i t 6 ,
Check D i g i t 1,
Check D i g i t 3,
Check D i g i t 6, RESISTOR
Check D i g i t 0 , WIRE 2 2 A W G W
s i d e o f
o f
new
F i g u r e 8-29
R33.
t o
side
t h e l e f t o f
C8.
o f 2 )