Service manual

Schematic Diagrams
B-1
B.Schematic Diagrams
Appendix B:Schematic Diagrams
This appendix has circuit diagrams of the M540J/M545J/M550J/M555J notebook’s PCB’s. The following table indi-
cates where to find the appropriate schematic diagram.
Diagram - Page Diagram - Page Diagram - Page
System Block Diagram - Page B - 2 MCP51 SATA / IDE - Page B - 17 SYSYEM POWER, BRIDGE BATT - Page B - 32
ATHLON 64 1/4 - Page B - 3 MCP51 AUDIO / USB / MISC - Page B - 18 +2.6V, +1.3V, +1.2V - Page B - 33
ATHLON 64 2/4 - Page B - 4 MCP51 RGMII - Page B - 19 +VCORE - Page B - 34
ATHLON 64 3/4 - Page B - 5 MCP51 PWR / GND - Page B - 20 +1.2VS_ADJ, +1.0V_ADJ - Page B - 35
ATHLON 64 4/4 - Page B - 6 MINI PCI, USB2.0*2 - Page B - 21 +VDD3, +VDD5, +VDD12 - Page B - 36
DDR SO-DIMM - Page B - 7 SIO, SATA HDD, CD-ROM - Page B - 22 D/D BD (RGB & TV OUT MUXES) - Page B - 37
DDR TERMINATION - Page B - 8 LAN RTL8201CL - Page B - 23 D/D BD (CRT, S-VIDEO, RJ-11) - Page B - 38
PANEL, INVERTER, FAN - Page B - 9 FWH, TOUCHPAD, LED - Page B - 24 D/D BD (CHARGER, DC IN) - Page B - 39
C15 HT CPU - Page B - 10 IEEE 1394 VT6307S - Page B - 25 AUDIO BD (PHONE JACK, USB) - Page B - 40
C51 HT MCP - Page B - 11 H8/2111 - Page B - 26 HOT KEY BD (HOT KEY, LED) - Page B - 41
C51 PCI EXPRESS - Page B - 12 MDC, USB BT, PWRGD, DDB CON - Page B - 27 LED BOARD - Page B - 42
C51 DAC / IFP - Page B - 13 AZALIA CODEC ALC880 - Page B - 28 CLICK BOARD - Page B - 43
C51 PWR / GND - DECOUPLING - Page B - 14 AUDIO AMP, USB2.0* 2 - Page B - 29 RJ-45 BOARD - Page B - 44
MCP51 HT - Page B - 15 PCMCIA ENE CB714B - Page B - 30 USB DONGLE BOARD - Page B - 45
MCP51 PCI - Page B - 16 PCM SOCKET, 3-IN-1 SOCKET - Page B - 31
Table B - 1
Schematic
Diagrams

Version Note
The schematic dia-
grams in this chapter
are based upon ver-
sion 6-71-M55J0-004.
If your mainboard (or
other boards) are a lat-
er version, please
check with the Service
Center for updated di-
agrams (if required).