GE LOGIQ 180 Basic Service Manual page 87

GE M S
EDICAL YSTEMS
D 2317229, R
IRECTION EVISION
Block Diagram
PR O B E
R el ay B oar d
OQ C A R D -> O cta l Q uad C hannel A si c R eceivin g Del ay
C O M SO -> C O M pl ex M ode M i d P rocesSO r
HV Power Supply
LV Power Supply
3
HV PCB
135V PS
HV Max
64
HV MUX
16
R X & I F
16
Pre A m p
16#
+120V
+5V
+12V
-12V
Figure 5-32 Block Diagram LOGIQ™ 180
Chapter 5 Theory
LOGIQ™ 180 B
HV 120V
16
Transmit B uffer
/Driver 16#
Frame A vera ge
S R A M
2
D A C
8
VC A A D C I / F
2: 1 Summer
& A D C
C LO C K
G enerat o r
FEB B oar d
Control Signal
Video Signal
Digital Signal
S M
ASIC ERVICE
16
TPG2
FEB B us t o D SC
3
8
OQ /
2
C O M SO
40M H z
30 M H z
Data C l k
Analog (Echo) Signal
ANUAL
5 - 3