GE LOGIQ E9 Service Manual page 217

GE H
EALTHCARE
D 5180263-100, R
IRECTION
5-3-4-2 Operator Panel Block Diagram
USB Inductive or
Optical Trackball
E
A/N KEYBOARD
BACKLIGHT
LED MATRIX
AMB
A/N KEYBOARD MATRIX
F
AUX USB
AUX USB
PORT 1
AUX USB
PORT 2
HV INVERTER
XFMR
TOUCH
SCREEN
LCD DISPLAY
5
EV
Figure 5-7 Operator Panel Block Diagram
J6
GRN
AMB
ON/OFF
BUTTON
+12V
AMB
ENABLE
FET
USB
KEYBRD
CONTROLLER
J7
D
J19
+5V
J5
TS
CTRL
PCB
J3
2.5V=MAX BRIGHT
0V = MIN
+3.3V
J6
B +12V
+12V
EE
POT
3.3V
C
LVDS
XMTR
Daughter Card
Chapter 5 Components and Functions (Theory)
BUTTON MATRIX
SLIDE
POTS
+3.3V +3.3V
A/D
QUAD QUAD
CONV
DETECT DETECT
+ MUX
SERIAL
BUS
+12 / +5 / +3.3V
J1
A
J18 J1
+12 / +5 / +3.3V
+12V
SERIAL BUS
+3.3V
MICRO-
CONTROL
LER
RAM
+3.3V
USB
HUB
ENABLE
USB5
3.3V
USB
uP
J24 J25
J22
UPPER OP PANEL REAR SHEET METAL
LOGIQ E9 S
BUTTON MATRIX
KEYBRD
CONTROLLER
ENCODERS (X12)
+5V
CH A/B
BUFFER
CH A/B
BUFFER
INTENSITY
CH A/B
BUFFER
CONTROL
+3.3V
QUAD
DETECT
CHIP
SELECT
INTENSITY
CONTROL
SWITCH PCB
CONTROL PCB
I2C
BUS
BOOT
EEPROM
PROGRAM
EEPROM
5V stby
PWR LED
PWR SW
+3.3V
USB6
REG
+5V
+12V
PTC
48V
J21 J23
M
ERVICE ANUAL
AMBER
LED
+12V
MATRIX
HI FET
+5V
AMB
PWM
LOW FET
GREEN
LED
+12V
MATRIX
HI FET
+5V
GRN
PWM
LOW FET
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