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