LG GSA-4120B Service Manual page 48

• Pin Description
Pin no. Pin Name
1 WRFIS
2 LE/LPS_A
3 LPS_B/ADIN0
4 FE
5 PE/ADIN1
6 TE
7 TEIN
8 SIGM
9 BCENT
10 PHBETA/TCE
11 BHBETA/TIE
12 VDD3
13 FVREF
14 FMD
15 GND3
16 LDOUT
17 VCC2
18 VRDC2N/PWRMON
19 VRDCN
20 VRDC
21 WAG1
22 WAG2
23 WAG3
24 WOBFCF
25 ATEST
26 AWOBSIG
27 VDD5
28 BHC
29 GND5
30 LNDTRK
31 SPBLVL/TISH2
32 RFPDSH
33 WFPDSH
34 MPDSH/SPDSH
35 WBLSH
36 WGATE
Type
Analog-Input
Analog-Output
Analog-Output
Analog-Output
Analog-Output
Analog-Output
Analog-Input
Analog-Output
Analog-Output
Analog-Output
Analog-Output
Power
Analog-Input
Analog-Input
Ground
Analog-Output
Power
External-capacitor required
External-components required
External-components required
External-capacitor required
External-capacitor required
Analog-Output
Analog-Output
Power
External-capacitor required
Ground
Digital-Input
Digital-Input
Digital-Input
Digital-Input
Digital-Input
Digital-Input
Digital-Input
Function
WRF single input terminal.
Lens error and lens shift signal output terminal.
Lens shift and Renesas test signal output terminal.
Focus error output terminal.
PE and Renesas test signal output terminal.
Tracking error output terminal.
TZC detectng TE signal input terminal.
Analog signal monitoring output terminal.
OPC center signal output terminal.
OPC top hold level signal & APC write sampling signal
output terminal / tilt servo detecting output terminal.
OPC bottom hold level signal & R-OPC sampling signal
output terminal / tilt servo detecting output terminal.
Power supply sonnected terminal(3.3V).
Reference voltage for APC input terminal.
APC monitor diode input terminal.
Ground connection terminal.
Terminal to control laser drivers for APC read system.
Power supply connected terminal(5V).
Terminal to connect laser driver control filters for APC
read / SH monitor output terminal
Terminal to connect laser driver control filters for APC
read.
Terminal to connect laser driver control filters for APC
read.
Terminal to connect WOBBLE AGC detector capacitor.
OB-BPFf0 auto-adjustment external capacitor
connected terminal
Renesas analog test signal output terminal.
Analog-level WOBBLE signal output terminal.
Power supply connected terminal(3.3V).
External capacitor for LPP bottom hold terminal.
Ground connected terminal.
Balance adjustment mode selection.
R-OPC WRF signal sampling pulse input terminal
/Tilt servo detecting sampling pulse input terminal.
APC read system sampling pulse input terminal..
APC write system sampling pulse input terminal.
Pick-Up input sampling pulse input terminal.
WOBBLE sampling pulse input terminal.
Read/Write control input terminal.
51