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Disassembly

Removing the PCI Express Video Card
1. Turn off the computer, remove the battery (page 2 - 5) and turn it over. 2. Remove screws 1 - 4 , and remove the bay cover 5 . 3. Remove screws 6 - 9 from the heat sink, in the order indicated on the label (and the same screw order when replacing the heat sink), and disconnect cable 10 from the mainboard. 4. Carefully lift the heat sink 11 off the computer. 5. Remove the PCI Express Video Card 12 as indicated. a. b. 5

Figure 2 - 9
PCI Express Video Card Removal
a. Remove the screws. b. Remove the cover. c. Remove the screws in the order indicated, and disconnect the cable. d. Remove the heat sink. e. Remove the card.

2.Disassembly

1

4
Reassembly Screw Order & Color

2 c. 10 7 8

3 d. 11

When replacing the heat sink, make sure you insert the screws in the same order indicated on the label.

e. 12
5. PCI Express Bay Cover 11. Heat Sink Unit 12. PCI Express Video Card

9

6

· 8 Screws

Removing the PCI Express Video Card 2 - 13

Disassembly

Removing the Keyboard & Shielding Plate
1. Turn off the computer and remove the battery (page 2 - 5). 2. Press the four keyboard latches 1 - 4 at the top of the keyboard to elevate the keyboard from its normal position (you may need to use a small screwdriver to do this). 3. Carefully lift the keyboard up and disconnect the keyboard ribbon cable at point 5 (be careful not to bend the keyboard ribbon cable). 4. Set the keyboard 6 aside and remove screws 7 - 11 from the keyboard shielding plate. 5. Lift off the shielding plate 12 . a. b.

Figure 2 - 10

2.Disassembly

Keyboard & Shielding Plate Removal 5
a. Press in the keyboard latches and elevate the keyboard. b. Disconnect the keyboard cable. c. Remove the keyboard. d. Remove the screws from shielding plate. d. Remove the shielding plate.

1

2

3

4

c. d. 7 8 9 11 6

e.

6. Keyboard 12 Shielding Plate

10 12

· 5 Screws

2 - 14 Removing the Keyboard & Shielding Plate

Disassembly

Removing the Modem Module
1. Turn off the computer, remove the battery (page 2 - 5) and the keyboard and shielding plate (page 2 - 13). 2. Remove screws 1 - 2 from the modem module. 3. Carefully lift up the modem module and disconnect cable 3 . 4. Remove the modem module 4 . a. b.

Figure 2 - 11
Modem Module Removal
a. Remove the screws. b. Carefully lift the module up and disconnect the cable.

2.Disassembly

1 2

4

3

4. Modem

Module

· 2 Screws

Removing the Modem Module 2 - 15

Disassembly

Removing the Wireless LAN/WLAN & Bluetooth Combo Module
1. 2. 3. 4. Turn off the computer, remove the battery (page 2 - 5) and the keyboard and shielding plate (page 2 - 13). Carefully disconnect the antenna cable at point 1 . Gently pull the two release latches 2 & 3 on the sides of the socket in the direction indicated by the arrows. The module 4 will pop-up, and you can remove it. a. b. 2

Figure 2 - 12
Wireless LAN/WLAN & Bluetooth Combo Module Removal

2.Disassembly

a. Disconnect the cable and pull the release latches. b. Remove the module.

4 3 1

4. WLAN or WLAN & Bluetooth Combo Module

2 - 16 Removing the Wireless LAN/WLAN & Bluetooth Combo Module

Disassembly

Removing the TV Tuner
1. 2. 3. 4. a. Turn off the computer, remove the battery (page 2 - 5) and the keyboard and shielding plate (page 2 - 13). Carefully disconnect the antenna cable at point 1 . Gently pull the two release latches 2 & 3 on the sides of the socket in the direction indicated by the arrows. The module 4 will pop-up, and you can remove it.

Figure 2 - 13
b. TV Tuner Removal
a. Disconnect the cable and pull the release latches. b. Remove the module.

2 4 1 3

2.Disassembly

4. TV Tuner Module

Removing the TV Tuner 2 - 17

Disassembly

Removing the Camera Module
1. Turn off the computer, remove the battery (page 2 - 5). 2. Remove screws 1 - 8 (and any rubber covers) from the front of the LCD assembly, then run your finger around the middle of the frame to carefully unsnap (and ease forward) the LCD front panel module from the LCD assembly. 3. Disconnect he cable 9 then carefully remove the camera module 10 .

Figure 2 - 14
Camera Module Removal
a. Remove the screws and ease forward the front panel module. b. Disconnect the cable. c. Remove the module.

a. 1 2 3 4

2.Disassembly

8

7

6

5

b.

c. 10

10. Camera Module

· 8 Screws

9

2 - 18 Removing the Camera Module

Part Lists

Appendix A:Part Lists
This appendix breaks down the D900T series notebook's construction into a series of illustrations. The component part numbers are indicated in the tables opposite the drawings. Note: This section indicates the manufacturer's part numbers. Your organization may use a different system, so be sure to cross-check any relevant documentation. Note: Some assemblies may have parts in common (especially screws). However, the part lists DO NOT indicate the total number of duplicated parts used. Note: Be sure to check any update notices. The parts shown in these illustrations are appropriate for the system at the time of publication. Over the product life, some parts may be improved or re-configured, resulting in new part numbers.

A.Part Lists

A - 1

Part Lists

Part List Illustration Location
The following table indicates where to find the appropriate part list illustration. Table A - 1
Part List Illustration Location
Part Top Bottom LCD Toshiba DVD-ROM Drive D470W

page A - 3 page A - 4 page A - 5 page A - 6 page A - 7 page A - 8 page A - 9

A.Part Lists

QSI Combo Drive DVD Dual Drive Hard Disk Drive

A - 2 Part List Illustration Location

Part Lists

Top (D900T)

Figure A - 1
Top (D900T)

A.Part Lists













Top (D900T) A - 3

Part Lists

Bottom (D900T)









Figure A - 2



A.Part Lists

Bottom (D900T)



















A - 4 Bottom (D900T)

Part Lists

LCD (D900T)

Figure A - 3
LCD (D900T)

A.Part Lists

LCD (D900T) A - 5

Part Lists

Toshiba DVD-ROM Drive (D900T)

Figure A - 4

A.Part Lists

Toshiba DVD-ROM Drive (D900T)

A - 6 Toshiba DVD-ROM Drive (D900T)

Part Lists

QSI Combo Drive (D900T)

Figure A - 5
QSI Combo Drive (D900T)

A.Part Lists

QSI Combo Drive (D900T) A - 7

Part Lists

DVD Dual Drive (D900T)

Figure A - 6

A.Part Lists

DVD Dual Drive (D900T)

A - 8 DVD Dual Drive (D900T)

Part Lists

Hard Disk Drive (D900T)

Figure A - 7
HDD Drive (D900T)

A.Part Lists

Hard Disk Drive (D900T) A - 9

Part Lists

A.Part Lists
A - 10

Schematic Diagrams

Appendix B:Schematic Diagrams
This appendix has circuit diagrams of the D900T notebook's PCB's. The following table indicates where to find the appropriate schematic diagram.
Diagram - Page
System Block Diagram - Page B - 2 Clock Generator - Page B - 3 CPU-1 Host/Power - Page B - 4 CPU-2 GTL+ / GND - Page B - 5 GMCH-1 Host/ PCI-E/ DMI - Page B - 6 GMCH-2 DDR2 - Page B - 7 GMCH-3 PWR / GND - Page B - 8 DDR2 DIMM-A - Page B - 9 DDR2 DIMM-B - Page B - 10 DDR2 Terminator - Page B - 11 ICH6-1 - Page B - 12 ICH6-2 PWR / GND - Page B - 13 VGA Daughter Connector - Page B - 14 DVI / TV-Out / Video-In Con - Page B - 15 Panel Con / LED Indicator - Page B - 16

Diagram - Page
PCMCIA TI1410 - Page B - 17 PCMCIA Power / Fan Con - Page B - 18 PCI 1394a TI TSB43AB22 - Page B - 19 GLAN RTL110SBL - Page B - 20 SATA RAID PDC20378 - Page B - 21 LPC Super I/O NS87393 - Page B - 22 LPT / COM Port CON / Thermistor - Page B - 23 LPC H8 - Page B - 24 CODEC ALC880 - Page B - 25 Audio Jack & ADJ Power - Page B - 26 Audio DJ BBVL+ Controller - Page B - 27 USB / CR / CCD Con / SRS - Page B - 28 Mini-PCI / NC / MDC / BT Con - Page B - 29 VCORE - Page B - 30 DDR Power - Page B - 31

Diagram - Page
System Power - Page B - 32 Charger - Page B - 33 Audio Board - Page B - 34 Audio DJ Board - Page B - 35 CD-ROM Board - Page B - 36 Click Board - Page B - 37 Switch Board - Page B - 38

Table B - 1
Schematic Diagrams

B.Schematic Diagrams

(71-D90T0-D05) B - 1

Schematic Diagrams

System Block Diagram
BLOCK DIAGRAM
*VGA-Daughter Card*
VRAM 2 CHANNEL

VRD 10.1

LGA775 Socket for Prescott or Tejas CPU

CK-410

DEVICE PCMCIA 1394 LAN MINI PCI MINI PCI RAID

INT INT#C/D INT#E/C INT#F/D INT#G/D INT#H/B INT#A/D

REQ/GNT PREQ#0 PREQ#1 PREQ#2 PREQ#3 PREQ#4 PREQ#5

IDSEL AD16 AD17 AD19 AD20 AD21 AD18

FSB800

LCD

B.Schematic Diagrams

TV OUT

VGA

PCI-Express x16

Grantsdale GMCH

DDR533 SO-DIMM x4

Sheet 1 of 42 System Block Diagram

DVI PORT VIDEO IN
CCD Camera Card Reader TV TUNER Blue Tooth USB Port 1 USB Port 2 USB Port 3 USB Port 4
USB 2.0/1.1

DMI

GigaLAN RTL8110SBL
PCI BUS

MINI PCI SLOT X2 FOR Wireless LAN & TV-TUNE

ICH6
I/O Controller Hub

CARD BUS PCI-1410

1394a TSB43AB22
Clock GEN.
SPK. OUT MIC. IN

14.318 MHz

SATA RAID PDC20378
SATA Interface
ULTRA DMA33/66/100

PCI BUS

XTAL CPU ITP GMCH
133/167/200 MHz

100/133/200 MHz

PRI

PRI

SATA Interface

Azalia LINK

Audio Codec ALC880

SPDIF LINE IN SPEAKER x4 Woofer x1

100/133/200 MHz

100/133/200 MHz 66 MHz (HUB LINK)

DDR DIMMs

HDD

HDD
Azalia LINK

100 MHz SRC (SATA) 66 MHz (HUB LINK) 48 MHz (USB) 33 MHz (PCI CLOCK) 32.768 KHz

ICH6
12 MHz

XTAL
24 MHz

Touch PAD Keyboard PS2 X2 FAN X 4 BATT. X1 DEBUGB PORT CIR

H8 KBC

LPC BUS

Audio DJ Control

LCM MODULE CDROM CONNECTOR

14.318 MHz (REF CLOCK) 48 MHz (IO CLOCK) 33 MHz (PCI CLOCK) 33 MHz (PCI CLOCK)

AC97 LPC IO PCIs

XTAL

FLASH BIOS
COM PORT LPT PORT FIR

NS87393
LPC SIO

MDC or MBC

CDROM CDROM

B - 2 System Block Diagram (71-D90T0-D05)