LG SoundPlate lab550h, Service Manual

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4-9
2-2. Pin Function
No. Name I/O Description
1 SLED1_P OUT Sled1 positive output terminal
2 SLED1_N OUT Sled1 negative output terminal
3 P12V_3 PS Power supply terminal for 12V drivers output
4 SLED2_P OUT Sled2 positive output terminal
5 SLED2_N OUT Sled2 negative output terminal
6 PGND_2 PS GND terminal for 12V drivers
7 C10V MISC The capacitance connection terminal for internal regulator
8 CP1 MISC Capacitance connection for Charge Pump
9 CP2 MISC Capacitance connection for Charge Pump
10 CP3 MISC Capacitance connection for Charge Pump
11 GPOUT OUT General Purpose Output (Test monitor)
12 XFG OUT Motor speed signal output
13 RDY OUT Device ready signal Internally pulled up to SIOV
14 SSZ IN SIO Slave Select Low active input terminal
15 SCLK IN SIO Serial clock input terminal
16 SIMO IN SIO Slave Input Master Output terminal
17 SOMI OUT SIO Slave Input Master Input terminal
18 SIOV PS Power supply terminal for Serial Port 3.3V typical
19 XRSTIN IN RESET input terminal to disable the driver IC
20 TEST1 MISC Test pin. Should be open.
21 VLDDIN IN
Laser diode control analog signal input 0 to 3V terminal. Required to set
register when use VLDDIN input. Open in case of non use analog input.
22 CV3P3 MISC Capacitance terminal for internal 3.3V core (typ 0.1uF)
23 AGND/DGND PS Ground terminal for digital and analog
24 A9P5V PS Power supply terminal 9.5V Laser didoe for BD
25 ILDD_BD OUT Laser diode for BD output terminal
26 ILDD_DVD OUT Laser diode for DVD output terminal
27 ILDD_CD OUT Laser diode for CD output terminal
28 CP5V MISC
The capacitance connection terminal for control system power supply 0.1uF
or lager decoupling capacitor should be connected.
29 LOAD_P OUT Load positive output terminal
30 LOAD_N OUT Load negative output terminal
31 P5V12L PS The power supply terminal (5V or 12V) for Load driver output stages.
32 TEST2 MISC Test pin. Should be open.
33 TEST3 MISC Test pin. Should be connected to P5V.
34 P5V_1 PS Power supply terminal for Tilt/Fcs/Trk drivers
35 TLT_N OUT Tilt negative output terminal
36 TLT_P OUT Tilt positive output terminal
37 TRK_P OUT Tracking positive output terminal
38 TRK_N OUT Tracking negative output terminal
39 FCS_P OUT Focus positive output terminal
40 FCS_N OUT Focus negative output terminal
41 PGND_1 PS GND terminal for Tilt/Fcs/Trk channel drivers
42 P12V_1 PS Power supply terminal for 12V driver output stage
43 U OUT U phase output terminal for spindle motor
44 ICOM1 MISC Current sense resister terminal for spindle driver
45 V OUT V Phase output terminal for spindle motor
46 P12V_2 PS Power supply terminal for 12V driver output stage
47 W OUT W phase output terminal for spindle motor
48 ICOM2 MISC Current sense resister terminal for spindle driver
49 MICOM IN Motor center tap connection
50 ISENCE IN Current sense input terminal for spindle drivers
51 AGND PS Ground terminal for internal analog
52 STIP1_P OUT STP1 positive output terminal for collimator
53 STIP1_N OUT STP1 negative output terminal for collimator
54 STP2_P OUT STP2 positive output terminal for collimator
55 STP2_N OUT STP2 negative output terminal for collimator
56 P5V_2 PS Power supply terminal for 5V driver output