HP 8559A C8, (-1, new, R33, t o, WIRE, side o f, Schematic Diagram (1 o f, Figure 8-29. Frequency Control Assembly 67

Pages 8-67 through 8-81/8-82: FBEQOEWCY COIlTROL ASSEHBLY A7Table 8-4. Frequency Control Assembly A7, Replaceable Parts

2236A & Below

2208A & Below

Replace Table 8-4 with new Table 8-4 (SERIAL PREFIX 2236A) included i n t h i s Manual Backdating supplement.

Make t h e following changes t o new Table 8-4 (SERIAL PREFIX

22368 :

Change A7 t o HP P a r t Number 08559-60021, Check D i g i t 7.

Add A7C1 and A7C2, HP P a r t Number 0180-2208, Check D i g i t 6, CAPACITOR-FXD 220UF +-lo% lOVDC TA.

Add A7Cl1, HP P a r t Number 0160-2055, Check D i g i t 9, CAPACITOR- FXD .O1UF +80-20% 100VDC CER.

Delete t h e following:

A7C13, A7C14, A7CR8, A7CR9, A7Q19, and A7Q20.

Change A7R30 t o HP P a r t Number 0698-3428, Check D i g i t 1, RESISTOR 14.7 1% .125W F TC=O+-100.

Change A7R31 t o HP P a r t Number 0757-0199, Check D i g i t 3, RESISTOR 21.5K 1% .125W F TC=O+-100.

Add A7R98, HP P a r t Number 0757-0465, Check D i g i t 6, RESISTOR lOOK 1% .125W F TC=O+-100.

Delete t h e following:

A7R100, A7R101, A7R102, A7U12, and A7VR1.

Add A7W1, HP P a r t Number 8159-0005, Check D i g i t 0 , WIRE 22AWG W PVC 1x22 80C.

2004A & Below Delete A7R99.

Figure 8-28. Frequency Control Asserbly A7, Component Locations

2236A & Below

2208A & Below

Replace Figure 8-28 with new Figure 8-28 (SERIAL PREFIX 2236A) included i n t h i s Manual Backdating supplement.

Replace Figure 8-28 with new Figure 8-28 (SERIAL PREFIX 2208A) included i n t h i s Manual Backdating supplement.

Add t h e following t o Figure 8-28 (SERIAL PREFIX 2208A): Add C12 between TP2 and t h e n e g a t i v e (-1s i d e o f C8. Add R99 t o t h e l e f t o f TP7.

2004A & Below	Delete A7R99.
Figure 8-29.Frequency Control Assembly 67,						Schematic Diagram (1 o f					2)
22361 & Below	Replace	Figure 8-29			( 1 o f	2 )	with new Figure 8-29 ( 1 o f 2 )
	(SERIAL PREFIX 2236A) included							i n t h i s Manual			Backdating
	supplement.
2208A & Below	Make t h e	following changes t o					Figure 8-29 (1 o f 2 ) (SERIAL PREFIX
	22368):
	Change	A7	t o	HP 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 R33.
	Connect		one	s i d e	o f R98 t o t h e l e f t				side o f		R33.
	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 .