Kenwood DP-1100 B Service Manual page 60

2. IC OPERATION OF EACH CIRCUIT AND PIN DESCRIPTION
Pin No. Symbol
Pin which outputs the sum signal (C + D) of pin IN C and IN D input signals out of 4-division
photodetector outputs.
The final stage buffer amp is provided with an external feedback resistance to neutralize the
effect of the irregularity in characteristics between photodiodes.
16 OUT2
Note 1 : 4 - d i v i s i o n photodetector configuration
Description
T a b l e 2 - 1 A
DP-I I D OB/ n
Remarks
J ^ J k
R F 2
J ^ > - T OUT
2
fa Buffer amp
Note 1
With max. input of 100 kHz
...Transfer impedance
= 27 kfi
R = 9k0
n
6 3