Kenwood TS-5700 Service Manual page 22

TS-5700
• VS-3 Audio S i g n a l Flow
The audio signal output from the VS-3 is not pro­
cessed by the DSP. The signal is amplified by the AF
amplifier and output to the speaker or headphone.
The VS-3 is controlled by the microcomputer.
• Co m m a nds and Data Tra nsferred to or from the
M i croco m p uter
The commands sent from the microcomputer to
the DSP and data sent from the DSP to the microcom­
puter to indicate the microcomputer and DSP process­
ing are described below.
1 ) DSP co m m a nds
Address (HEX) Bit (HEX)
C + O
C : C o m m a n d
Area b a s e 0
p o i n t e r 1
=0000 2
3
4
5
6
7
8
9
A
C + l
0
1
2
3
4
5
6
7
8
C + 2
0
1
C + 3
0 - 3
C + 4
0 - 3
C + 5
0 - 4
C + 6
0 - 2
C + 7
0 - 4
24
0-4
C + 8
CIRCUIT DESCRIPTION
DSP-MCU
Accept
C O M I R 02 P a r a m e t e r proce s s i n g c o m m a n d ( T h e D S P is c l e a re d afte r t h e co m m a n d is executed . )
f-
C l e a r R e c e i ve m o d e
_,
TX f i l t e r
Voice e q u a l i z e r
RX f i l t e r
CW p i t c h
Tra n s m it m o d e
AF VO L
N o i se/i n t e rfere n c e e l i m i n a t i o n m o d e
S PAC corre l a t i o n t i m e
FM s u bt o n e freq u e n cy
f-
Everyt i m e F l a g 1
S I C
D RT K
F D E V
CWBT
STC
vox P R C
f-
E v e ryt i m e F l a g 1
L I T R C
B C T R C
f-
I R 02 TX m o d e
0 : S S B
4 : F M
f-
I R 02 RX m o d e
0 : S S B
4 : F M
f-
I R 02 TX f i l t e r
B a n d
f-
I R 02 TX voice e q u a l i z e r
I R 02, M O D E T X voice e q u a l i z i n g O N/O F F a n d s e l e c t i o n
f-
RX S S B/A M f i l t e r 1
I R 02, M O D E
S S B/ A M l o w c u t
f-
SS B/AM
RX S S B/A M f i l t e r 2
µ C O M
VS-3
C O N T R O L
Fig. 20
Fu n ct io n (Parameter)
S i d eto n e ctl 0 : O F F , 1 : O N ( S i d et o n e p e r m i s s i o n )
D R U -3A m i c r o p h o n e 0 : O F F , 1 : O N (Switch t h e m i c r o p h o n e g a i n f o r D R U )
F M d e v i a t i o n 0 : N a rrow, 1 : W i d e
CW t u n e 0 : O F F , 1 : O N
FM s u bt o n e 0 : O F F , 1 : O N
vox Processor 0 : O F F , 1 : O N
0 : O F F , 1 : O N
L i n e e n h a n c e r trace 0 : O N , 1 : O F F
B e a t c a n c e l e r trace 0 : O N , 1 : O F F
2 : cw
1 : S L E E P 3 : A M
5 : F S K 6 : S L E E P 7 : T E S T
1 : S L E E P 2 : CW 3 : A M
5 : F S K 6 : S L E E P 7 : T E ST
h i g h c u t
I C 8
LA4446
V O I C E
SPEAKER
VS-3 a u d i o signal flow