Semiconductor Data; Terminal Connection Diagram - Kenwood TK-768 Service Manual

TK:768/H
. Terminalfunction
s 1 2
s 1 1
s 1 0
S9
c a
5 /
S 6
5 C
S4
S3
s2
S 1
SO
VDD
VRËF
SEMIGONDUCTOR
DATA
Microprocessor : M38267M8L157GP (TX-RX Unit lc409l
. Terminal connection diagram
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55L
KM20
5trLt
D/A
M O N
AUX
SCN
VLDN
VLUP
A H K
APTT
v 5 5
XO
XI
xco
xcl
RST
S M D I
TEST
E C K
EDT
{
{
coM2
c o M l
coM0
VL3
VL2
c ) F : z O O o O O Z O
É t s r x x ' : F 0 É o ( , r )
c
F c c + @ >
ut
à
ê > ( n t r
) a < '
c o -
> r J 7 0 -
à ? I 0 ?
* 5
- ' ó ó
p x p s F
R E E à 3 3 3 3 3 8 8 8 3 b 3 S i l 3 S 6
O F N o < e @ t s @ o O r N O Ë
( '
F N O + D @ r O ó
-
; ; j Ë -
F - F r F N N N
N N N
Ël
461
I
4 5 1
ool
431
42
40
J Y
38
5 T
35
J +
32
? 1
30
29
2 8
/ o
77
7 8
7 q
80
8 1
82
q ?
84
qE
óo
8'I
88
89
9 0
9 1
J Z
93
L
1 9 4
I
t - -
1 9 6
I
1 9 7
I
l e 8
1 9 9
I roo
Pin No. PóÉ NAME
r/o Function
LD
PLL lock detect. "1" : Unlock, "H" : Lock
BUSY
Nor used.
BIAS
OT center voltage input.
4
TI
OT signal input.
5-8
q
FSW
I
Foot switch. "1" : On, "H" : OfÍ
1 0 DTMF
o
DTMF output,
1 1
1 2
SOL
I
Squelch noise pulse inPut.
I J
C H D N I
CH down. "1" : On, "H' : OfÍ
1 4
C H U P
CH up. "L' : On, "H" : Off
t 5
1 6
ïo
o
OT PWM output.
1 7
PTT
vo
"toph".e
PTT. "L" : On, "H" : Off / DTMF microphone : serial interface'
HK
Microohone hook.
'L" : On hook, "H" : Off hook
44