Kenwood TK-782 Service Manual page 45

TK-782
Shift Register : BU4094BCFV
" Terminal function (TX-RX unit B/2 IC508)
Pin No. Port Name
1 ES ES1
2 DT DT
3 CK
4 Q1 LR
5 Q2 LG
6 Q3 KBLC
7 Q4 MM1
8 VSS
9
10
11 Q8 PA2
12 Q7 BSHIFT
13 Q6 KEY
14 Q5 T/R
15 OE
16 VDC
" Terminal function (TX-RX unit A/2 IC7)
Pin No. Port Name
1 STB ES
2 SI DT
3 CLK CK
4 Q1 HORN
5 Q2 HL
6 Q3 TIMOFF
7 Q4
8 VSS
9
10
11 Q8 W/N
12 Q7
13 Q6 PA1
14 Q5
15 OE
16 VDC
44
SEMICONDUCTOR DATA /
Function
Strobe
Data
Clock
Red LED. H : ON, L : OFF
Green LED. H : ON, L : OFF
Key back light. H : ON, L : OFF
MIC mute. H: Mute, L : Unmute
GND
NC
NC
Public address control 2. H : ON, L : OFF
Beat shift. H : ON, L : OFF
TX power switching. H : TX, L : RX
TX/RX switching. H : RX, L : TX
Output enable
+5V
Function
Strobe
Data
Clock
Horn alert. H : ON, L : OFF /
Auxiliary A. H : ON, L : OFF
RF power switching. H : High, L : Low
Timed power off. H : Power off
NC
GND
NC
NC
Wide/Narrow switching.
H : Wide, L : Narrow
NC
Public address 1. H : ON, L : OFF
NC
Output enable
+5V
"
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