LG LM-M530A, Service Manual

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Pin Descriptions
Pin No. Symbol I/O Function
1 D11 I/O DRAM data signal I/O 11
2 D10 I/O DRAM data signal I/O 10
3 D9 I/O DRAM data signal I/O 9
4 D8 I/O DRAM data signal I/O 8
5 UDQM O SDRAM upper byte data mask signal output
6 SDRCK O SDRAM clock signal output
7 A11 O DRAM address signal output 11
8 A9 O DRAM address signal output 9
9 A8 O DRAM address signal output 8
10 A7 O DRAM address signal output 7
11 A6 O DRAM address signal output 6
12 A5 O DRAM address signal output 5
13 A4 O DRAM address signal output 4
14 LDQM O SDRAM lower byte data mask signal output
15 NWE O DRAM write enable signal output
16 NCAS O DRAM CAS control signal output
17 NRAS O DRAM RAS control signal output
18 NCS O SDRAM chip select signal output
19 A3 O DRAM address signal output 3
20 A2 O DRAM address signal output 2
21 A1 O DRAM address signal output 1
22 A0 O DRAM address signal output 0
23 DRVDD1 I Power supply 1 for DRAM interface I/O
24 DVSS1 I Ground 1 for digital circuits
25 A10 O DRAM address signal output 10
26 *BA1 O SDRAM bank selection signal output 1
27 *BA0 O SDRAM bank selection signal output 0
28 DVDD1 I Power supply 1 for internal digital circuits
29 SPOUT O Spindle drive signal output (absolute value)
30 *SPPOL O Spindle drive signal output (polarity)
31 TRVP O Traverse drive signal output (positive polarity)
32 *TRVM O Traverse drive signal output (negative polarity)
33 *TRVP2 O Traverse drive signal output 2 (positive polarity)
34 *TRVM2 O Traverse drive signal output 2 (negative polarity)
35 TRP O Tracking drive signal output (positive polarity)
36 *TRM O Tracking drive signal output (negative polarity)
37 FOP O Focus drive signal output (positive polarity)
38 *FOM O Focus drive signal output (negative polarity)
39 IOVDD1 I Power supply 1 for digital I/O
40 TBAL O Tracking balance adjustment signal output
41 FBAL O Focus balance adjustment signal output
42 FE I Focus error signal input
43 TE I Tracking error signal input
44 ADPVCC I Voltage input for supply voltage monitor
45 RFENV I RF envelope signal input
46 LDON O Laser ON signal output
47 NRFDET I RF detectoion signal input
48 OFT I Off-track signal input
49 BDO I Dropout signal input
50 AVDD1 I Power supply 1 for analog circuits
51 IREF I Analog reference current input
52 ARF I RF signal input
53 DSLF O DSL loop filter pin
54 PWMSEL I PWM output mode selection input Low: Direct High: 3-state
55 PLLF O PLL loop filter pin (for phase comparison)