MCi JH-400B Series Technical Manual page 17

- -
-
- -
- - - - - -
-·- -
Clock
i
BCD
BCD to
Counter
Decimal
Decoder
MASTER CONTROL BOARD (4Cl43)
-----------l
D/A
Counter
l
RAMP
OUTPUT
:...._____j[>·
> - - - - - - - 4
BCD
0
OUTPUT
I
I
I
I
I
I
I
L _ _ _ _ _
-------------
- - - - - - ·- ··- - - - - _J
r-
'
I
I
I
I
I
I
I
RAMP
INPUT
AUDIO
J;NPUT
BCD
INPUT
----------------
Precision
I
Rectifier
Comparator
- - - - - - - - - - - - - - ,
l
!
Latch
I
~----------j
,..-1---l..------L,
Decoder
I
i
'
I
I
I
I
I
I
I
L _ _ _ _ _ _ _ _ _
---------------------- _j
CHANNEL BOARD (4Cl38)
Figure 13
BLOCK DIAGRAM
JH-400B LIGHT METER
L L