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Schematic Diagrams
B-1
B.Schematic Diagrams
Appendix B: Schematic Diagrams
This appendix has circuit diagrams of the LV22C/LV22N/LV19C/LV19N computer’s PCB’s. The following table in-
dicates where to find the appropriate schematic diagram.
Diagram - Page Diagram - Page Diagram - Page
System Block Diagram - Page B - 2 ICH8 1/3 (PCI, DMI, CPU, IRQ) - Page B - 17 System Power - Page B - 32
Clock Generator - Page B - 3 ICH8 2/3 (LPC, ATA, USB, GPIO) - Page B - 18 3.3V/5V - Page B - 33
CPU - 1 of 3 - Page B - 4 ICH8 3/3 (Power) - Page B - 19 12VS, AC-In - Page B - 34
CPU - 2 of 3 - Page B - 5 JM361 PCI-E TO PATA, eSATA - Page B - 20 1.8V/0.9V - Page B - 35
CPU - 3 of 3 - Page B - 6 CD-ROM, SATA, PC-Beep, LED - Page B - 21 1.5VS,1.05VS - Page B - 36
Intel P965 1/5 CPU Interface - Page B - 7 VGA Fan, CCD, Power OK - Page B - 22 1.2VS/1.25VS - Page B - 37
Intel P965 2/5 PCI-E I/F - Page B - 8 LAN 82566 - Page B - 23 VCORE - Page B - 38
Intel P965 3/5 Memory I/F - Page B - 9 PCI7402 - Page B - 24 LED Board - Page B - 39
Intel P965 4/5 GND - Page B - 10 TV Tuner, CardReader, CIR - Page B - 25 Power Board - Page B - 40
Intel P965 5/5 Power - Page B - 11 ITE IT8512 - Page B - 26 CIR Board - Page B - 41
DDRII SO-DIMM 1/2 - Page B - 12 Mini Card, New Card - Page B - 27 CD-ROM Board - Page B - 42
DDRII SO-DIMM 2/2 - Page B - 13 USB 2.0 - Page B - 28 Video Connector Board - Page B - 43
MXM PCI-E CONN - Page B - 14 AZALIA Codec ALC883/ALC888 - Page B - 29 CRT Connector Board - Page B - 44
BIOS, USB K/B, TPM - Page B - 15 Audio AMP, SRS, Woofer - Page B - 30
Panel, CPU Fan - Page B - 16
MDC, BT, PWRGD, Inverter Connector -
Page B - 31
Table B - 1
Schematic Diagram
Version Note
The schematic dia-
grams in this chapter
are based upon ver-
sion 6-71-LV220C-
D03A. If your main-
board (or other boards)
are a later version,
please check with the
Service Center for up-
dated diagrams (if re-
quired).