Schematic Diagrams
B-1
B.Schematic Diagrams
Appendix B:Schematic Diagrams
This appendix has circuit diagrams of the M540SE/M550SE notebook’s PCB’s. The following table indicates where to
find the appropriate schematic diagram.
Diagram - Page Diagram - Page Diagram - Page
System Block Diagram - Page B - 2 VT8237 2/3 - Page B - 15 +1.8V, +VTT_MEM - Page B - 28
PROCESSOR 1/2 - Page B - 3 VT8237 3/3 - Page B - 16 VCORE - Page B - 29
PROCESSOR 2/2 - Page B - 4 MINI PCI, MINI Card, USB2.0*2, FP - Page B - 17 +1.05VS, 1.5V, 1.5VS - Page B - 30
VN896 1/4 - Page B - 5 SATA HDD, CD-ROM, H8 BEEP, CCD - Page B - 18 +VDD3, +VDD5 - Page B - 31
VN896 2/4 - Page B - 6 LAN PHY - Page B - 19 D/D BD (CRT, INVERTER, CCD, RJ-11) - Page B - 32
VN896 3/4 - Page B - 7 LPC ROM, TOUCH PAD, LED - Page B - 20 D/D BD (CHARGER, DC IN) - Page B - 33
VN896 4/4 - Page B - 8 H8-2111 - Page B - 21 AUDIO BD (PHONE JACK, USB, RJ-11) - Page B - 34
DDR2-1 - Page B - 9 MDC, USB BT, PWRGD, DDB CON - Page B - 22 HOT KEY BD (HOT KEY, LED, LID) - Page B - 35
DDR2-2 - Page B - 10 Audio VT1708A/ALC883 - Page B - 23 LED BOARD - Page B - 36
CLOCK GENERATOR - Page B - 11 AUDIO AMP, USB2.0*2 - Page B - 24 CLICK BOARD - Page B - 37
PANEL, FAN - Page B - 12 PCI ENE MR510 - Page B - 25 RJ-45 BOARD - Page B - 38
VIA LVDS VT-1634AL - Page B - 13 NEW CARD, 3-IN-1 SOCKET - Page B - 26 USB DONGLE BOARD - Page B - 39
VT8237 1/3 - Page B - 14 5V, 3V, 5VS, 3VS, 2.5V, 2.5VS - Page B - 27 FINGERPRINT BOARD - Page B - 40
Table B - 1
Schematic
Diagrams
Version Note
The schematic dia-
grams in this chapter
are based upon ver-
sion 6-71-M5E50-
D02A. If your main-
board (or other boards)
are a later version,
please check with the
Service Center for up-
dated diagrams (if re-
quired).