Samsung UN55MU7000FXZA, Руководство пользователя

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Function Control Operation/Test
Function/IR
FUNCTION/IR Control Test
1. TV in Standby
2. Check LED Status
3. If LED is OFF

LED 1.7Vdc (pin 8)and VCC for 3.3Vdc (pin 3)
• If missing suspect Function Assy/Cable/Main board.
4. If LED is ON

Switch Operation activates on screen display
• If missing:

Key _Input1 Pin 6 change to 0V with a command.
•
If wrong voltage or no change:

Switch for stuck or miss-operation.
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.
LED Status/
Function Switch
CN910 (FUNCTION/IR)
1
IR 3.3Vdc to 2.5Vdc
(Effective DC)
2 GND
3 A3.3V_PW 4
AMP_SCL_I2C
3.3Vdc (effective DC)
5
AMP_SDA_I2C
3.3 Vdc (effective DC)
6
KEY_INPUT1
1.8dc to 0V with
command
7
KEY_INPUT2 0V
(no operation change)
8
LED_STB_OUT
1.7Vdc STBY
9
A3.3V_PW 3.3V to Deco
Lamp
10
LED_CTRL to Deco
Lamp
1Vdc (off) 0.5V (On)
CN910
On Screen Selections with Function Control
Troubleshooting