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4. Troubleshooting
4-2. Function Control Operation
4-2-1. FUNCTION/IR Control Test
1
IR 3.3Vdc to 2.5Vdc (Effective DC)
3
SENSOR_SDA_I2C 3.3Vdc (effective
5
7
1.8dc to 0V with command
CN1502
To
Main Board
1
3
5
MOTION_INTERRUPT
1.
TV in Standby
2.
Check LED Status.
NOTE
•
Can be turned off in menu.
3.
If
LED is OFF (& LED should be on with menu setting)
LED 1.7Vdc (pin 8) and VCC for 3.3Vdc (pin 3)
9
•
If missing suspect Function Assy/Cable/Main board.
4.
If
LED is ON
Switch Operation activates on screen display.
9
•
If missing:
Key_Input 1 Pin 6
9
•
If wrong voltage or no change:
Switch for stuck or miss-operation.
9
5.
Check
IR operation with Standard Remote command changes.
(3.3V to 2.5V effective DC)
6.
SDA
, SCL for effective 3.3Vdc (after power on)
-
If missing suspect Function Assy/Cable Assy./Main Assy.
4-14
CN1501 (FUNCTION & IR)
A3.3V_PW
DC)
KEY_INPUT2
<Function/IR>
CN1502 (FRAME2.0 MOTION SENSOR)
GND
MOTION_SCL_I2C
[On Screen Selections with Function Control]
change to 0V with a command.
2
GND
SENSOR_SCL_I2C 3.3Vdc (effective
4
DC)
KEY_INPUT1
6
1.8dc to 0V with command
LED_STB_OUT
8
1.7Vdc STBY
2
MOTION_SDA_I2C
4
MOTION_NRESET
6
A3.3V_PW
LED Status / Function Switch
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