FUNCTION/IR Control
<Function/IR>
Main Board - CN1101 (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) 8 LED_STB_OUT 1.7Vdc STBY
9 N/C 10 N/C
11 N/C 12 N/C
TV in Standby •
LED Status
If - LED is OFF
LED 1.7Vdc (pin 8) and VCC for 3.3Vdc 9
If missing suspect • Function Assy/Cable Assy/Main Assy.
If - LED is ON
Switch Operation activates on screen display. 9
If missing:
Check the STBY voltage from SMPS to Main Board. 1.
If STBY is OK suspect 9 Main Board.
Check Jog Shuttle 5 SW Operation (2. Key 1 & Key 2) for command changes. If incorrect suspect a stuck Jog switch
which also holds data to Main preventing operation.
Check 3. SDA, SCL for effective 3.3Vdc (after power on).
Check 4. IR with Standard Remote command changes. (3.3V to 2.5V effective DC)
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