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FUNCTION/IR Control
„
1
IR 3.3Vdc to 2.5Vdc (Effective DC)
3
5
AMP_SDA_I2C 3.3 Vdc (effective DC)
7
KEY_INPUT2 0V (no operation change)
1.
TV in Standby
√
LED Status
2.
LED is OFF
If
√
LED 1.7Vdc (pin 8) and VCC for 3.3Vdc (pin 3)
•
If missing suspect
3.
If
LED is ON
√
Switch Operation activates on screen display.
<On Screen Selections with Function Control>
If missing:
-
√
Key _Input1 Pin 6
If wrong voltage or no change:
-
√
Switch for stuck or miss-operation.
4.
Check
IR operation with Standard Remote command changes. (3.3V to 2.5V effective DC)
5.
SDA
, SCL for effective 3.3Vdc (after power on)
If missing suspect
-
CN1 (FUNCTION/IR)
A3.3V_PW
Function Assy/Cable Assy/Main Assy.
change to 0V with a command.
Function Assy/Cable Assy/Main Assy.
2
4
AMP_SCL_I2C 3.3Vdc (effective DC)
6
KEY_INPUT1 1.8dc to 0V with command
8
LED_STB_OUT 1.7Vdc STBY
<Function/IR>
4. Troubleshooting
GND
CN1
LED Status / Function Switch
4-3
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