Samsung UN49KS850DF, Руководство по обслуживанию

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FUNCTION/IR Control
„
<DECO Lamp> <Function/IR>
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
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 Assy/Main Assy .
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. √
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 .
4-3
4. Troubleshooting