LG LGXBR342 Service Manual page 91

Pin description
No. Pin Name Type
1 GND0
2 SWRF1 OUTPUT
3 SWRF1 OUTPUT
4 RFP INPUT
5 RFN INPUT
6 GND1
7 A1 INPUT
8 B1 INPUT
9 C1 INPUT
10 D1 INPUT
11 VCC2
12 REFI2 INPUT
13 REFO1 OUTPUT
14 E1 INPUT
15 F1 INPUT
16 G1 INPUT
17 H1 INPUT
18 GND2
19 FOP INPUT
20 FOM INPUT
21 GND3
22 HPAD
23 CAD
24 HPBC
25 CBC
26 VCC3
27 PDIN INPUT
28 FPDVREF INPUT
29 APCPH
30 RREF
31 RLD OUTPUT
32 RLDM INPUT
33 WREF
34 WLD OUTPUT
35 WLDM INPUT
36 PELD OUTPUT
37 P2LD OUTPUT
38 CREG OUTPUT
39 REF1 INPUT
40 REFO2 OUOTPTU DSP Reference voltage output [at REFI port 2.5V: 1.5V output].
Description
- Analog GND
WRF signal sampling & hold [S/H] signal output.
WRF signal sampling & hold [S/H] signal output.
RF differerential signal[+] input.
RF differerential signal[-] input.
- Analog GND
Main beam signal [A1] input.
Main beam signal [B1] input.
Main beam signal [C1] input.
Main beam signal [D1] input.
- Analog power.
Reference voltage input pin for PDIC.
Pick-up internal reference voltage output[at REFI pin 2.5V: 2.25V output.]
Sub beam signal [E1] input.
Sub beam signal [F1] input.
Sub beam signal [G1] input.
Sub beam signal [H1] input.
- Analog GND
FO+ signal input for Focus.
FO- signal input for Focus.
- Analog GND
- Wobble circuit HPF band setting condenser connecting port.
- Wobble circuit AGC response time setting condenser connecting port.
- Wobble circuit HPF band setting condenser connecting port.
- Wobble circuit AGC response time setting condenser connecting port.
- Analog power.
Laser monitor current input.
Reference voltage input pin for front monitor.
- Peak-hold condenser connecting pin for ALPC .
- Read ALPC Condenser connecting port.
Read Laser drive control output.
Read Laser drive control Amp[-] input.
- Write ALPC Condenser connecting port.
Write Laser drive control output.
Write Laser drive control Amp[-] input.
Pick power output port1.
Pick power output port 2.
Regulater voltage[2.5V] output.
DSP power voltage input[2.5V].
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