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4-2. Function Control Operation
4-2-1. FUNCTION/IR Control Test
<Function/IR>
LED Status / Function Switch
To
CN801
Main Board
CN901 (FUNCTION & IR)
1
IR
3.3Vdc to 2.5Vdc (Effective DC)
2
DGND
3
A3.3V_PW
4
KANTN_MAIN_
SCL
_I2C
3.3Vdc (Effective DC)
5
KANTN_MAIN_
SDA
_I2C
3.3Vdc (Effective DC)
6
KEY_INPUT1
1.8Vdc to 0V with command
7
KEY_INPUT2
(No operation change)
8
LED_STB_OUT
1.7Vdc STBY
9
A3.3V_PW
3.3V to Deco Lamp
10
LED_CTRL
Deco Lamp 1Vdc (Off) / 05V (On)
[On Screen Selections with Function Control]
TV in Standby
1.
Check LED Status.
2.
NOTE
Can be turned off in menu.
•
If
3.
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.
•
If
4.
LED
is
ON
Switch Operation activates on screen display.
9
If missing:
•
Key_Input 1 Pin 6
9
change to 0V with a command.
If wrong voltage or no change:
•
Switch for stuck or miss-operation.
9
Check
5.
IR
operation with Standard Remote command changes.
(3.3V to 2.5V effective DC)
SDA
6.
,
SCL
for effective 3.3Vdc (after power on)
If missing suspect Function Assy/Cable Assy./Main Assy.
-
4-5
4. Troubleshooting