HP 8642A Operating Manual page 453

AssembIy Locator
Simp I i f i ed Block Di agram
F M / * M .
(FROM *
FRONT
PANEL)
AP
J5
zin
M O
OSCILLATOR
CM
EXTERNAL/
INTERNAL
FM SWITCHING
EXTERNAL
COUNT
INT/EXT
COUNT
SELECT
ZERO
CROSSING
DETECTOR
S S 1 4
SS-SERVICE SHEET
'
FM LEVEL
ADJUST
FM RANGE
SELECT
r
■
'
SS17
A2
JB
U i >
~U
>
J /
ALC LOOP
MULTIPLIER
©
SS15
FM OUT
A2
J7
_L-A MOD OUT
T T ( T D
_ i _ ^ FRONT
PANEL)
A2
COUNTER
AUDIO
Figure 8J-100 BD5 General Information.