GE Medical Systems LOGIQ ?200 Service Manual page 62

GE MEDICAL SYSTEMS
REV 3
3–6 TEST POINT, LED, DIP SWITCH AND RESET SWITCH
3–6–1 Test Point List
The table below shows The Test Point list for LOGIQ α200.
LOCATION
DSC ASSY
MST ASSY
RTC ASSY
TABLE 3– 6
TEST POINT
NAME DESCRIPTION
TP1 M–mode enable signal
TP3 Mapping clock
TP4 Horizontal driving signal
TP5 Vertical driving signal
TP6 Anti–alasing filter output
TP7 Scan line No.0
TP8 Scan line No.8
TP9 –5V for analog/digital
TP10 Input echo signal from the ESP
TP V5_1 +5V for digital
TP601
TP602 +5V for digital
FOOT S/W Foot switch status
CLK2_25M 25MHz clock
CLK 9M 9MHz clock
CLK36M 36MHz clock
+5V +5V for digital
+15V +15V for analog
–15V –15V for analog
THV High voltage for transmitting
RTC_WE RTC write enable signal
CDA D/A output for continuous
dynamic aperture (CDA)
CIM Not used
CDF D/A output for continuous
dynamic focusing (CDF)
PGC D/A output for Pre–gain
control (PGC)
TFC D/A output for time frequency
control (TFC)
LOGIQ α200 SERVICE MANUAL
Assy
Gnd
3–10
2138853
POSITION
Edge of board
–
–
–
–
–
–
–
–
Edge of board
Edge of board
Edge of board
–
–
–
–
Edge of board
Edge of board
Edge of board
Edge of board
–
–
–
–
–
–
SYSTEM CONFIGURATION