LG BD550 Manual De Servicio página 102

Pin Symbol
R5 FEGIO12
V4 FEGIO13
T2 FEGIO2
P6 FEGIO3
U1 FEGIO4
R4 FEGIO5
P5 FEGIO6
U2 FEGIO7
Type
High speed serial output port.(CLOCK) The pin is spike-free at
3.3V LVTTL power-on stage.
I/O, Alternate function :
5V-tolerance, 1. PC RS232 serial receive data.
4, 8, 12, 16mA 2. Internal monitored signal output
PDR, 3. SATA stagger spin up input control
75K pull-up 4. General IO
High speed serial output port.(Data)
3.3V LVTTL
The pin is spike-free at power-on stage.
I/O,
Alternate function :
5V-tolerance,
1. PC RS232 serial transmit data.
4, 8, 12, 16mA
2. Internal monitored signal output
PDR,
3. General IO
75K pull-up
General IO. The pin is spike-free at power-on stage.
3.3V LVTTL Alternate function :
I/O, 1. Input fatal_error from PUH
5V-tolerance, 2. Input shock from shock sensor
4, 8, 12, 16mA 3. SIDM
PDR, 4. 12C SDA
75K pull-up 5. Internal monitored signal output
3.3V LVTTL
LED Control Output. Initial 0 Output.
I/O,
The pin is spike-free at power-on stage.
5V-tolerance,
Alternate function :
4, 8, 12, 16mA
1. Internal monitored signal output
PDR,
2. General IO
75K pull-down
Read/Write gain switch 6
Alternate function :
1. LCD serial interface command enable.
Analog
2. LCD_DRV: Sqare wave output for LCD control.
Output
3. Internal monitored signal output
4. General IO.
Read/Write gain switch 7
Alternate function :
Analog 1. SIDM
Output 2. LCD serial interface command enable.
3. Internal monitored signal output
4. General IO.
Read/Write gain switch 8.
The pin is not allowed to pull-up in circuit layout
Alternate function :
Analog
1. SIDM
Output
2. LCD serial interface command enable.
3. Internal monitored signal output
4. General IO.
3.3V LVTTL
I/O,
5V-tolerance, General IO. The pin is spike-free at power-on stage.
4, 8, 12, 16mA The pin is not allowed to pull-up in circuit layout.
PDR,
75K pull-down
4-9
Description