Kenwood DP-1100 B Service Manual page 68

2. IC OPERATION OF EACH CIRCUIT AND PIN DESCRIPTION
Pin No. Symbol Pin name
39 FGS FG signal input
PLL section clock pulse
40 PLCK
input
41 EFMO EFM output
42
IN/OUT
Input for FG signal with 20 pulse/disc rotation.
I
Should have a duty ratio of approx. 50.
Input for reference signal (4.32 MHz) to PLL section for EFM signal
I
reading
Inversion output of signal EFMI.
0
With signal RFOK " H " , is fixed to " L " .
+ 5 V
T a b l e 2 - 2 A
Description
D P - 1 1 0 0 B II
Remarks
Pullup resistor
incorporated
Pullup resistor
incorporated
71