Toshiba Satellite C850D User manual

Satellite/Satellite Pro/C850D/C855D/L850D/L855D Maintenance Manual
Toshiba Personal Computer
Satellite C850D/C855D/L850D/L855D
Satellite Pro C850D/L850D
(PSC7Sx/PSC7Tx/PSC7Ux/PSC7Vx)
(PSKAYx/PSKAZx/PSKB2x/PSKB3x)
(PSKB4x/PSKB5x/PSKB6x/PSKB7x)
Maintenance Manual
TOSHIBA CORPORATION
S/ No

ii Satellite/Satellite Pro/C850D/C855D/L850D/L855D Maintenance Manual
Copyright
© 2012 by Toshiba Corporation. All rights reserved. Under the copyright laws, this manual
cannot be reproduced in any form without the prior written permission of Toshiba. No patent
liability is assumed with respect to the use of the information contained herein.
Toshiba Satellite/Satellite Pro/C850D/C855D/L850D/L855D Maintenance Manual
First edition April of 2012
Disclaimer
The information presented in this manual has been reviewed and validated for accuracy. The
included set of instructions and descriptions are accurate for the Satellite/Satellite
Pro/C850D/C855D/L850D/L855D at the time of this manual's production. However,
succeeding computers and manuals are subject to change without notice. Therefore, Toshiba
assumes no liability for damages incurred directly or indirectly from errors, omissions, or
discrepancies between any succeeding product and this manual.
Trademarks
Intel and Pentium are registered trademarks of Intel Corporation.
IBM, IBM PC/XT, PC/AT, PS/2 and OS/2 are registered trademarks of IBM Corporation.
Windows 7 home edition are registered trademarks of Microsoft Corporation.
Sound Blaster and Pro are trademarks of Creative Technology Ltd.
UNIX is a registered trademark of X/Open Company Ltd.
NetWare are registered trademarks of Novell, Inc.
All other properties are trademarks or registered trademarks of their respective holders.

Satellite/Satellite Pro/C850D/C855D/L850D/L855D Maintenance Manual iii
Preface
This maintenance manual describes how to perform hardware service maintenance for the
Toshiba Personal Computer Satellite/Satellite Pro/C850D/C855D/L850D/L855D, referred to
as Satellite/Satellite Pro/C850D/C855D/L850D/L855D in this manual.
The procedures described in this manual are intended to help service technicians isolate
faulty Field Replaceable Units (FRUs) and replace them in the field.
SAFETY PRECAUTIONS
Four types of messages are used in this manual to bring important information to your
attention. Each of these messages will be italicized and identified as shown below.
DANGER: “Danger” indicates the existence of a hazard that could result in death or
serious bodily injury, if the safety instruction is not observed.
WARNING: “Warning” indicates the existence of a hazard that could result in bodily
injury, if the safety instruction is not observed.
CAUTION: “Caution” indicates the existence of a hazard that could result in property
damage, if the safety instruction is not observed.
NOTE: “Note” contains general information that relates to your safe maintenance
service.
Improper repair of the computer may result in safety hazards. Toshiba requires service
technicians and authorized dealers or service providers to ensure the following safety
precautions are adhered to strictly.
Be sure to fasten screws securely with the right screwdriver. If a screw is not fully
fastened, it could come loose, creating a danger of a short circuit, which could cause
overheating, smoke or fire.
If you replace the battery pack, RTC battery or backup battery, be sure to use only the
same model battery or an equivalent battery recommended by Toshiba. Installation of
the wrong battery can cause the battery to explode.

iv Satellite/Satellite Pro/C850D/C855D/L850D/L855D Maintenance Manual
The manual is divided into the following parts:
Chapter 1 Hardware Overview describes the Satellite/Satellite
Pro/C850D/C855D/L850D/L855D system unit and each FRU.
Chapter 2 Troubleshooting Procedures explains how to diagnose and resolve
FRU problems.
Chapter 3 Test and Diagnostics describes how to perform test and diagnostic
operations for maintenance service.
Chapter 4 Replacement Procedures describes the removal and replacement of the
FRUs.
Appendices The appendices describe the following:
Handling the LCD module
Board layout
Keyboard scan/character codes
Key layout

Satellite/Satellite Pro/C850D/C855D/L850D/L855D Maintenance Manual v
Conventions
This manual uses the following formats to describe, identify, and highlight terms and
operating procedures.
Acronyms
On the first appearance and whenever necessary for clarification acronyms are enclosed in
parentheses following their definition. For example:
Read Only Memory (ROM)
Keys
Keys are used in the text to describe many operations. The key top symbol as it appears on
the keyboard is printed in boldface type.
Key operation
Some operations require you to simultaneously use two or more keys. We identify such
operations by the key top symbols separated by a plus (+) sign. For example, Ctrl + Pause
(Break) means you must hold down Ctrl and at the same time press Pause (Break). If
three keys are used, hold down the first two and at the same time press the third.
User input
Text that you are instructed to type in is shown in the boldface type below:
DISKCOPY A: B:
The display
Text generated by the XXXXX that appears on its display is presented in the type face below:
Format complete
System transferred

vi Satellite/Satellite Pro/C850D/C855D/L850D/L855D Maintenance Manual
Table of Contents
Chapter 1 Hardware Overview
1.1 Features................................................................................................................................4
1.2 System Unit Components ..................................................................................................11
1.3 2.5-inch HDD.....................................................................................................................16
1.4 DVD Super Multi (+-R Double Layer)..............................................................................17
1.5 Blu-Ray Writer...................................................................................................................18
1.6 Blu-Ray Writer (BDXL) ....................................................................................................19
1.7 Blu-Ray COMBO ..............................................................................................................20
1.8 Power Supply.....................................................................................................................21
1.9 Batteries .............................................................................................................................22
1.91 Main Battery...........................................................................................22
1.92 Battery Charging Control .......................................................................22
1.93 One time RTC Battery............................................................................23
Chapter 2 Troubleshooting
2.1 Outline.................................................................................................................... 2-1
2.2 Basic Flowchart......................................................................................................2-2
2.3 Power Supply .........................................................................................................2-6
Procedure 1 Power Icon Check...........................................................................2-6
Procedure 2 Connection Check...........................................................................2-8
Procedure 3 Replacement Check ........................................................................2-8
2.4 System Board..........................................................................................................2-9
Procedure 1 Message Check...............................................................................2-9
Procedure 2 Test Program Check......................................................................2-10
Procedure 3 Replacement Check ......................................................................2-10
2.5 HDD ..................................................................................................................... 2-11
Procedure 1 Message Check.............................................................................2-11
Procedure 2 Partition Check .............................................................................2-11

Satellite/Satellite Pro/C850D/C855D/L850D/L855D Maintenance Manual vii
Procedure 3 Format Check................................................................................2-12
Procedure 4 Test Program Check......................................................................2-13
Procedure 5 Connector Check and Replacement Check...................................2-14
2.6 Keyboard ..............................................................................................................2-15
Procedure 1 Test Program Check......................................................................2-15
Procedure 2 Connector Check and Replacement Check...................................2-15
2.7 Display..................................................................................................................2-16
Procedure 1 External Monitor Check................................................................2-16
Procedure 2 Test Program Check......................................................................2-16
Procedure 3 Connector Check and Replacement Check...................................2-16
2.8 ODD (Optical Disk Drive) ...................................................................................2-18
Procedure 1 ODD Cleaning Check...................................................................2-18
Procedure 2 Test Program Check......................................................................2-18
Procedure 3 Connector Check and Replacement Check...................................2-18
2.9 LAN......................................................................................................................2-20
Procedure 1 Test Program Check......................................................................2-20
Procedure 2 Connector Check and Replacement Check...................................2-20
2.10 Audio Test............................................................................................................2-21
Procedure 1 Test Program Check......................................................................2-21
Procedure 2 Connector Check and Replacement Check...................................2-21
2.11 Cooling Module....................................................................................................2-22
Procedure 1 Test Program Check......................................................................2-22
Procedure 2 Connector Check and Replacement Check...................................2-22
2.12 Touchpad..............................................................................................................2-23
Procedure 1 Test Program Check......................................................................2-23
Procedure 2 Connector Check and Replacement Check...................................2-23
2.13 Memory................................................................................................................2-24
Procedure 1 Test Program Check......................................................................2-24
Procedure 2 Connector Check and Replacement Check...................................2-24
2.14 USB Port...............................................................................................................2-25
Procedure 1 Windows Application Test ........................................................... 2-25
Procedure 2 Connector Check and Replacement Check...................................2-25

viii Satellite/Satellite Pro/C850D/C855D/L850D/L855D Maintenance Manual
2.15 Headphone Port.................................................................................................... 2-26
Procedure 1 Windows Application Test ........................................................... 2-26
Procedure 2 Connector Check and Replacement Check................................... 2-26
2.16 Microphone Port...................................................................................................2-27
Procedure 1 Windows Application Test ........................................................... 2-27
Procedure 2 Connector Check and Replacement Check................................... 2-27
2.17 Video RGB Port ...................................................................................................2-28
Procedure 1 Windows Application Test ........................................................... 2-28
Procedure 2 Connector Check and Replacement Check................................... 2-28
2.18 Card Reader..........................................................................................................2-29
Procedure 1 Windows Application Test ........................................................... 2-29
Procedure 2 Connector Check and Replacement Check................................... 2-29
2.19 Camera..................................................................................................................2-30
Procedure 1 Windows Application Test ........................................................... 2-30
Procedure 2 Connector Check and Replacement Check................................... 2-30
2.20 Wireless LAN.......................................................................................................2-31
Procedure 1 Windows Application Test ........................................................... 2-31
Procedure 2 Connector Check and Replacement Check................................... 2-31
2.21 Battery Pack..........................................................................................................2-32
Procedure 1 Windows Application Test ........................................................... 2-32
Procedure 2 Connector Check and Replacement Check................................... 2-32
2.22 HDMI Port............................................................................................................2-33
Procedure 1 Windows Application Test ........................................................... 2-33
Procedure 2 Connector Check and Replacement Check................................... 2-33
Chapter 3 Diagnostic Programs
3.1 General .......................................................................................................................1
3.2 Quick Start..................................................................................................................3
3.2.1 Quick Test ................................................................................................3
3.2.2 Customization Test...................................................................................3
3.2.3 Keyboard Layout test................................................................................7

Satellite/Satellite Pro/C850D/C855D/L850D/L855D Maintenance Manual ix
3.2.4 Audio Play Test....................................................................................... 8
3.2.5 Audio Record Test................................................................................... 9
3.2.6 DMI Read.............................................................................................. 10
3.2.7 DMI Write............................................................................................. 10
3.2.8 System Information ............................................................................... 12
3.2.9 View Logs ............................................................................................. 13
3.2.10 Exit to Free DOS.................................................................................. 14
3.2.11 The Diagnostics Screen Explanation..................................................... 14
3.3 Options .................................................................................................................... 18
3.3.1 Overview............................................................................................... 18
3.3.2 Batch Parameters Configuration............................................................ 19
3.3.3 Item’s Parameters Configuration........................................................... 21
3.3.4 Load Batch Parameters.......................................................................... 22
3.3.5 Save Batch Parameters.......................................................................... 23
3.3.6 LOG Parameters Setting........................................................................ 24
3.3.7 Specify LOG Viewer............................................................................. 25
3.3.8 Display LOG File .................................................................................. 25
3.3.9 LOG Viewer.......................................................................................... 26
3.3.10 LOG File Sample................................................................................... 27
3.4 Subtests.................................................................................................................... 29
3.5 System Test ............................................................................................................. 32
3.6 Memory Test ........................................................................................................... 37
3.7 Storage..................................................................................................................... 42
3.8 Video....................................................................................................................... 46
3.9 Communication (COMM)....................................................................................... 54
3.10 Peripheral................................................................................................................. 55
3.11 Error Codes and description.................................................................................... 58
3.12 Quick Test Item List................................................................................................... i

x Satellite/Satellite Pro/C850D/C855D/L850D/L855D Maintenance Manual
Chapter 4 Replacement Procedures
4.1 General ...................................................................................................................4-1
Safety Precautions................................................................................................4-2
Safety Precautions................................................................................................4-2
Before You Begin ................................................................................................4-4
Disassembly Procedures ...................................................................................... 4-5
Assembly Procedures...........................................................................................4-5
Tools and Equipment........................................................................................... 4-6
Screw Tightening Torque.....................................................................................4-6
Colors of Screw Shanks.......................................................................................4-7
Symbols of Screws on the Computer Body.........................................................4-7
Symbol examples.................................................................................................4-7
4.2 Battery Pack/PC card/Bridge Media.......................................................................4-8
4.2.1 Battery Pack..........................................................................................4-8
Removing the Battery Pack..................................................................................4-8
Installing the Battery Pack ................................................................................... 4-9
4.2.2 Bridge Media......................................................................................4-10
Removing the Bridge Media.............................................................................. 4-10
Installing the PC Card........................................................................................4-10
4.3 HDD .....................................................................................................................4-11
Removing the HDD ...........................................................................................4-11
Installing the HDD.............................................................................................4-13
4.4 Memory Module and RTC battery.......................................................................4-14
Removing the Memory Module and RTC battery ............................................. 4-14
Installing the Memory Module and RTC battery...............................................4-15
4.5 ODD Bay Module.................................................................................................4-16
Removing the ODD Bay Module....................................................................... 4-16
Installing the ODD Bay Module ........................................................................ 4-17
Disassembling the ODD Drive .......................................................................... 4-18
Assembling the ODD Drive...............................................................................4-18
4.6 Keyboard ..............................................................................................................4-19

Satellite/Satellite Pro/C850D/C855D/L850D/L855D Maintenance Manual xi
Removing Keyboard ..........................................................................................4-19
Installing the Keyboard......................................................................................4-20
4.7 Wireless LAN Card..............................................................................................4-21
Removing the Wireless LAN Card....................................................................4-21
Installing the Wireless LAN Card......................................................................4-23
4.8 CPU Cooling Module and Fan.............................................................................4-24
Remove the CPU cooling module and Fan........................................................4-24
Installing the CPU Cooling Module and Fan.....................................................4-26
4.9 CPU......................................................................................................................4-27
Removing the CPU............................................................................................4-27
4.10 System Board........................................................................................................4-30
Removing the System Board..............................................................................4-30
Installing the System Board ...............................................................................4-31
4.11 Display Assembly.................................................................................................4-32
Removing the Display Assembly.......................................................................4-32
Installing the Display Assembly ........................................................................4-33
4.12 Speakers................................................................................................................4-34
Removing the Speakers......................................................................................4-34
Installing the Speakers .......................................................................................4-35
4.13 Display Mask........................................................................................................4-36
Removing the Display Mask..............................................................................4-36
Installing the Display Mask ...............................................................................4-36
4.14 LED Module.........................................................................................................4-38
Removing the LED module ...............................................................................4-38
Installing the LED Module.................................................................................4-40
4.15 CCD module.........................................................................................................4-41
Removing the CCD module...............................................................................4-41
4.16 Touchpad board and Touchpad bracket ...............................................................4-43
Removing the Touchpad board and Touchpad bracket......................................4-43
Install the Touchpad board and Touchpad bracket ............................................4-44

xii Satellite/Satellite Pro/C850D/C855D/L850D/L855D Maintenance Manual
Appendices
Appendix A Handling the LCD Module ........................................................................... A-1
Appendix B Board Layout..................................................................................................B-1
Appendix C Keyboard Scan/Character Codes....................................................................C-1
Appendix D Key Layout.................................................................................................... D-1

i Satellite/Satellite Pro/C850D/C855D/L850D/L855D Maintenance Manual
Chapter 1
Hardware Overview

1 Hardware Overview
ii Satellite/Satellite Pro/C850D/C855D/L850D/L855D Maintenance Manual
Chapter 1 Contents
1.1 Features................................................................................................................................4
1.2 System Unit Components..................................................................................................11
1.3 2.5-inch HDD....................................................................................................................16
1.4 DVD Super Multi (+-R Double Layer) .............................................................................17
1.5 Blue-Ray Writer ................................................................................................................18
1.6 Blu-Ray Writer (BDXL)....................................................................................................19
1.7 Blu-Ray COMBO..............................................................................................................20
1.8 Power Supply.....................................................................................................................21
1.9 Batteries.............................................................................................................................22
1.9.1 Main Battery..........................................................................................22
1.9.2 Battery Charging Control.......................................................................22
1.9.3 One time RTC Battery...........................................................................23

1 Hardware Overview
iii Satellite/Satellite Pro/C850D/C855D/L850D/L855D Maintenance Manual
Figures
Figure 1-1 ID Parts Description Placement...............................................................................8
Figure 1-2 Computer Block Diagram........................................................................................9
Figure 1-3 System Board Configurations................................................................................10
Figure 1-4 System Unit Block Diagram..................................................................................11
Figure 1-5 SATA HDD...........................................................................................................16
Figure 1-6 DVD Super Multi Drive........................................................................................17
Figure 1-7 Blue-Ray Writer Drive...........................................................................................18
Figure 1-8 Blu-Ray Writer (BDXL) Drive..............................................................................19
Figure 1-9 Blu-Ray Combo Drive...........................................................................................20
Tables
Table 1-1 HDD Specifications................................................................................................16
Table 1-2 DVD Super Multi Drive Specifications..................................................................17
Table 1-3 Blue-Ray Writer Drive Specifications....................................................................18
Table 1-4 Blu-Ray Writer (BDXL) Drive Specifications........................................................19
Table 1-5 Blu-Ray Combo Drive Specifications.....................................................................20
Table 1-6 Battery Specifications .............................................................................................22
Table 1-7 Quick/Normal Charging Time................................................................................23

1 Hardware Overview 1.1 Features
4 Satellite/Satellite Pro/C850D/C855D/L850D/L855D Maintenance Manual
1.1 Features
Toshiba Satellite C850D/C855D/L850D/L855D and Satellite Pro C850D/L850D is a full size
notebook PC based on the mobile AMD Trinity Processor, providing high-speed processing
capabilities and advanced features. The computer employs a Lithium Ion battery that allows it to
be battery-operated for a longer period of time. The display uses 15.6-inch HD Bent CSV LCD
panel at resolution of 1366x768.
The computer has the following features:
Processor
CPU is mobile AMD Trinity Processor:
AMD Dual Core Processor
A6-4400M 2.7GHz
A8-4500M 1.9GHz
Host Bridge System Controller
System Controller: AMD Hudson M3.
Graphics
AMD integrated graphics or external Thames LE graphics.
Memory
The computer has two SO-DIMM slots, which come standard with DDR3-1333MHz
(PC3-10600) and DDR3-1600MHz (PC3-12800) memory module.DDR3 is driven at
1.5V. It accepts BTO/CTO for your memory requirements. It can incorporate up to
16GB of main memory.
Using the following sizes of memory modules:
2048 MB (256M×64) / DDR3-1333MHz / DDR3-1600MHz
4096 MB (512M×64) / DDR3-1333MHz / DDR3-1600MHz
8192 MB (1024M×64) / DDR3-1333MHz / DDR3-1600MHz

1.1 Features 1 Hardware Overview
Satellite/Satellite Pro/C850D/C855D/L850D/L855D Maintenance Manual 5
Hard Disk Drive (HDD)
The computer accommodates 2.5-inch 7.0mm/9.5mm height Serial ATA HDD with
following storage capacities:
320 GB (7mm/9.5mm thick) SATA (5,400rpm)
500 GB (7mm/9.5mm thick) SATA (5,400rpm)
640 GB (9.5mm thick) SATA (5,400rpm)
750 GB (9.5mm thick) SATA (5,400rpm)
1TB (9.5mm thick) SATA (5,400rpm)
ODD
The computer accommodates a fixed 12.7mm ODD with one of following types:
Tray Type DVD Super Multi +-R Double Layer drive
Tray Type BD Combo drive
Tray Type BD Writer (BDXL) drive
Tray Type BD Writer drive
Display
LCD displays come in the following type at resolution 1366x768:
15.6” HD 1366x768 CSV LED display
On-Board LAN
The internal LAN supports 10/100Mbit Ethernet, enabling connection to a LAN at up to
100Mbps. It supports Wake-up on LAN from S3/S4/S5 and PXE boot support. This
internal LAN has RJ45 jack to directly accommodate a LAN cable.
Wireless LAN and Bluetooth (BTO)
The internal PCI Mini slot supports IEEE802.11bgn / IEEE802.11abgn Wireless LAN
cards, and WLAN + Bluetooth combo card is also supported. The Antenna has one or
two wires dual band.

1 Hardware Overview 1.1 Features
6 Satellite/Satellite Pro/C850D/C855D/L850D/L855D Maintenance Manual
Sound System
REALTEK ALC269Q integrated audio controller supports multimedia. The sound
system contains the following:
Stereo speakers
Headphone jack
Integrated microphone(BTO with Webcam)
External microphone jack
Keyboard
38 kinds’ countries keyboard, which is Toshiba 2012 A4 with numeric keypad keyboard.
Toshiba Touch Pad
Normal Gesture Touch Pad (w/ 2 mechanical buttons)
USB Port
The computer has three USB ports for USB2.0 and USB3.0 (BTO). It is supported to
daisy-chain a maximum of 127 USB devices. USB2.0 data transfer rate is up to
480Mbps and USB3.0 data transfer rate is up to 5Gbps. These ports support PnP
installation, hot plugging and supports Sleep & Charge Function.
RGB External Monitor Port
A 15-pin external monitor port is provided, through which the computer automatically
recognizes an external VESA DDC 2B compatible monitor.
HDMI Port (BTO)
A HDMI monitor can be connected to HDMI Out Port on the computer.
Bridge Media Slot
This slot is for your memory card requirements like SD/Mini SD (need Converter)/Micro
SD (need Converter)/SDHC/SDXC and MMC Cards to provide memory card read on
your computer.

1.1 Features 1 Hardware Overview
Satellite/Satellite Pro/C850D/C855D/L850D/L855D Maintenance Manual 7
Webcam (BTO)
The computer has an internal camera. It supports either VGA (0.3M) without Macro or
HD (1.0M) without Auto Macro modules or FHD (2.0M) without Auto Macro. There is
Camera LED (Blue) on the camera module; LED is on when the camera is working. The
internal microphone is embedded in this camera module.
Battery
The computer has a removable 3 cell and 6 cell Lithium Ion battery pack and a onetime
RTC battery (non-rechargeable)

1 Hardware Overview 1.1 Features
8 Satellite/Satellite Pro/C850D/C855D/L850D/L855D Maintenance Manual
Figures 1-1/1-2/1-3 and 1-4 show the computer and its system unit configuration,
respectively.
Figure 1-1 ID Parts Description Placement