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IC BLOCK DIAGRAM &
&
IC102 LA1831
DESCRIPTION
2s
lCOOl AN8803SB
h=kl
INWT
em
IC109 & IC104 L7805CV
)
Curreo
Limlte
r
$
1
L
OUTPUT
E3sl
4
5
No.
Name
L/o
Function
1
PD
I
Signal
inputfor LD
output ~~nitor
pD
2
LD
o
Connect to base of ext. Tr for LD driver
3
LDON
I
ONIOFF changeover for LD APC
4
LDP
I
Chan geover of APC ref. voltage
5
Vcc
-
Power supply connect pin
6
RF
I
Reverse input pin of RF AMP to connect resistor
7
RFOUT
o
Output pin of RF AMP (reverse
AMP)
8
RFIN
I
RF AGC input pin
9
C.AGC
-
C connection pin for RF AGC loop filter
10
ARF
OR
F output pin following to AGC
11
C.ENV
-c
connection pin for RF
12
C.EA
-c
connection pin for AMP
13
C.SBDO
-c
connection pin for low speed det. for dark level DO &t.
14
BDO
OB
DO det. output pin(positive logic)
15
C.SBRT
-c
connection pin for low speed det. for OHR
det.
16
OFTR
00
FF TRACK det. output pin (positive logic)
17
N RFDET
OR
F signal amplitude det. output pin(negafive logic)
18
GND
-G
round pin.
-12-
1
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