Silva NX2, Руководство по обслуживанию

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611DeptblockNX2.doc Page 1 Latest update: 19 Nov -02
6.11 BLOCK CIRCUIT DIAGRAM NX2 DEPTH AMP/ SERVER
P
O
WER
OSCILLATOR
FREQUENCY
MODULATOR
High
V
o
ltage
TRANSMITTER
F
ILTER
AMP
L
IF
IER
AND
DIGITALIS
E
R
RESONANCE
F
ILTER
HI
GH Q-V
A
LUE
TRANSDUCER
Q 64, T 60 550Vpp
3,68 MHz
U 60 4,00 MHz
ECHO
+8V and -4V
U 63
U 60, U 61
SLP L
eng
ht C
o
ntr
o
l
U 60, Q 60, Q 63
185 KHz
Ti
m
e
Variated
Ga
in
Co
ntr
o
l
TV
G
U 62, D 63, D 64
L 6
0
U 62
U 62, Q 62
+12 V
To CP
U
Fr
om C
P
U
0 V
P
O
WER
P
O
WER
OSCILLATOR
FREQUENCY
MODULATOR
FREQUENCY
MODULATOR
High
V
o
ltage
TRANSMITTER
High
V
o
ltage
TRANSMITTER
F
ILTER
F
ILTER
AMP
L
IF
IER
AND
DIGITALIS
E
R
AMP
L
IF
IER
AND
DIGITALIS
E
R
RESONANCE
F
ILTER
HI
GH Q-V
A
LUE
RESONANCE
F
ILTER
HI
GH Q-V
A
LUE
TRANSDUCERTRANSDUCER
Q 64, T 60 550Vpp
3,68 MHz
U 60 4,00 MHz
3,68 MHz
U 60 4,00 MHz
ECHO
+8V and -4V +8V and -4V
U 63
U 60, U 61
SLP L
eng
ht C
o
ntr
o
l
U 60, Q 60, Q 63
SLP L
eng
ht C
o
ntr
o
l
U 60, Q 60, Q 63
185 KHz
Ti
m
e
Variated
Ga
in
Co
ntr
o
l
Ti
m
e
Variated
Ga
in
Co
ntr
o
l
TV
G
U 62, D 63, D 64
L 6
0
U 62
U 62, Q 62
+12 V
To CP
U
Fr
om C
P
U
0 V