FUNCTION/IR Control
TV in Standby 1.
LED Status √
If 2. LED is OFF
LED 1.7Vdc (pin 8)and VCC for 3.3Vdc √
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:
Check the STBY voltage from SMPS to Main Board. If STBY is OK suspect 1. 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)
<Function/IR>
<Jog Function Switch>
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
Voltage
8 LED_STB_OUT 1.7Vdc STBY
9 N/C 10 N/C
11 N/C 12 N/C
P CMD Signal DC Voltage
1 Center Key 1 1.8V to 0 Vdc
2 Vol+ Key 2 1.8V to 1.0 Vdc
2 Vol- Key 2 1.8V to 1.5 Vdc
2 CH+ Key 2 1.8V to 0 Vdc
2 CH- Key 2 1.8V to 0.6 Vdc
3 GND
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