Lmt Block Diagram - GE LOGIQ 5 PRO Service Manual

GE M S
EDICAL YSTEMS
D 2380207, R
IRECTION EVISION
5-4-1-1 Interface to Probe
• Probe Status detection
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• Mux Interface
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• Power Supply for Mux
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• Surface temperature
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• LED Blinking
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5-4-1-2 IIC bus
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5-4-2 LMT
The main function of LMT ASSY is as follows.
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7
Detects whether or not a probe is connected.(POPEN)
Detects ID code of a connected probe.(PCODE)
Transfers control data of Mux to a probe.(CONSYS,CONSTA)
Enables/Disables control of data.
Detects whether Mux data setting is finished or not.
Supply/Cut control:
+5V and +15V on a connector are supplied while a probe is connected to the connector.
+/-SHV are supplied only while a probe is selected.
Detects resistance of a thermistor in a probe head as voltage when the probe is
selected.(PTEMP) This signal is connected to FEC.
The LED in a probe blinks when the probe is selected.
Connects signals of IIC bus with a relay when IIC bus access is required.
Selects one of three probes that IIC access with 3-to-1 switch.
USB from BEP
A/N Key Assy
USB
Track Ball
USB I/F
USB I/F
USB#1, #2 From
USB I/F
Rear Panel
VGA Display from BEP
Figure 5-6 LMT Block Diagram
64ch transmit/receiving switches protect a Pre-amp from a high voltage transmit pulse
All control signal and DC power for RLY pass through this LMT Assy
Chapter 5 Components and Functions (Theory)
USB
MICOM
With HUB
A/N Matrix
Interface
Keyboard
Control
USB
USB HUB
MICOM
MICOM
USB I/F RS232
Down #1
Down #2
Down #4
Down #4
RAM
LCD Assy
AD
Inverter
Board
6.4"
TFT LCD
LOGIQ™5 PRO S
ERVICE
Function Key Arrys
Encoders
TGC SLide POT
LEDs for Key
backlight
Foot Switch I/F
Touch Screen
Interface
Touch
Sensor
M
ANUAL
5-7