Kenwood DP-1100 B Service Manual page 84

2. IC OPERATION OF EACH CIRCUIT AND PIN DESCRIPTION
Pin No. Symbol I/O
42 42 42 42 42 WSEG WSEG WSEG WSEG WSEG 1 1 1 1 1
43 43 43 43 43 TMWS TMWS TMWS TMWS TMWS 1 1 1 1 1
44 44 44 FSGM FSGM FSGM
1 1 1 1 1 1 1 1
45 45 45 45 45 FSGL FSGL FSGL FSGL FSGL
46 46 46 46 46 TMGS TMGS TMGS TMGS TMGS 1 1 1 1 1
-
47 NC
Waveform
Window selection of gate signal which, when the frame sync pattern
of EFM signal is detected, determines whether or not this pattern is
given as the sync signal for the internal system.
WSEG
- - - - -
L
H
Selects the number of Tmax = N (PLCK) in detection of T
signal which is input from pin EFM2.
TMWS
- - - - -
L
H
When no frame sync pattern is detected within the window of the
frame sync separation protection gate signal in N continuous frames,
system synchronization is made by the next input frame sync pattern
without the window.
These two inputs are used in selection of number N.
FSGL
- - - - - - - -
L L
H
L
H
To prevent faulty Tmax detection, data is valid only when data Tmax
continues N times. This number N is determined by the input.
TMGS
- - - - -
L
H
-
Not connected.
T a b l e 2 - 3 - 3 A
Description
Gate signal window (number of clocks PLCK)
± 3
± 7
N (PLCK)
11 ± 1
11 ± 0 . 5
FSGM N (frame)
L L
L
H
H
N
7
4
D P - 1 1 0 0 B II
Remarks
„ of EFM
m
12 12
8
4
2
8 7