Detailed instructions for use are in the User's Guide.
[. . . ] Welcome - Getting Started
This document contains information about the LatitudeTM D620. The Latitude D620 training course goal is to prepare you to accurately and effectively resolve customer inquiries and technical issues and to inform you of the proper steps for replacing hardware. This course also gives an overview of the system BIOS, features, keyboard shortcuts, and safety precautions. RTS Dates: Americas - 04/07/2006 Europe - 04/07/2006 Brazil - 04/07/2006 Asia Pacific - 04/07/2006 Japan - 04/07/2006 China - 04/07/2006
Departments: Contributing Sources: Contacting Dell:
Global Technical Curriculum Development (GTCD)
To contact Dell regarding issues with this training material, click the following link: Feedback.
Information in this document is subject to change without notice. [. . . ] PCM Upstream -- Increases the upstream data rates from the system to the ISP, which reduces the upload times for large files and e-mail attachments. A maximum upstream data rate of 48 Kbps is possible, compared to the previous V. 90 standard and maximum upstream data rates of 31. 2 Kbps. However, the PCM Upstream feature is ISP dependent.
While PCM Upstream does increase upstream speeds, it also reduces download speeds at the same time. Because of this, Dell has disabled PCM Upstream on the computer.
Modem-on-Hold
The Modem-on-Hold (MOH) feature requires an applet to put the modem on hold to receive the incoming call or to place an outbound call on the other phone line. Modem-on-Hold is disabled by default.
NOTE: MOH requires call waiting service from the phone company and V. 92 support from the ISP.
V. 44 Compression
V. 44 compression is a new ITU standard designed to improve data compression rates between the computer and the ISP. These higher compression rates, which increase between 20 and 60 percent on average and as much as 200 percent, mean more data can be downloaded in the same amount of time. Since HTML text files are highly compressible, you notice the most significant improvement when browsing and searching the Web.
Technical Specifications
Some of the specs for the modem are listed below. Modem Specifications 56K modem Data modem standard Error correction Data compression Fax modem standard Command set Dialing Power management Secondary codec Bus interface Operating system V. 92 with software upgradeability
Supports V. 92 upstream to 48Kbps and V. 90 Data Mode with autofallback to K56flex, V. 34.
Supports Data Mode Error Correction V. 42 LAPM and MNP 2-4 error correction
V. 42bis, MNP 5, and V. 44 data compression
Send and receive rates up to 14. 4 kbps, V. 17, V. 29, V. 27ter, and V. 21 channel 2
TIA/EIA 602 standard for AT command set and TIA/EIA 578 Fax Class 1 command set
DTMF and call progress monitor
Supports ACPI Power Management and wake-up on ring
Crystal is placed on the system board; the modem is designed as secondary codec and BIT-CLK as an input
Compliant to Intel Mobile Audio/Modem Daughter Card Specification 1. 0
Microsoft® Windows® 98SE Windows 2000 Windows ME Windows XP
Homologation Safety requirement Line interface
U. S. A. /Japan/Canada/CTR-21/Hong Kong/Taiwan/China/Australia/New Zealand/Singapore/Korea/Malaysia
CSA/UL1950 (Third Edition), EN60950 A1+A2+A3+A4+A11
Connected to RJ-11 on system board through connector Surge protector and ferrite bead are placed on the modem
Printed 2/22/2007 5:44:33 PM Expires 2/23/2007 5:44:33 PM
LatitudeTM D620 Modem
For Dell Employees Only This document is Dell Confidential
Processor
The LatitudeTM D620 ships with the new Intel® CoreTM Duo and Core Solo processors, dual-core and single-core processors, respectively. As with all newly designed processors, these CPUs are not backwards compatible with older units. However, you can swap a single-core with a dual-core processor since they share the same socket design and pinouts.
Unlike the newest desktop processors that use the Socket T design, the connector pins are not located on the system board but are still found on the processor itself. This design is more reliable for a mobile platform since the pins seat more securely. Take care not to bend the pins when removing or replacing a processor. For more information on these processors and their features, visit the "Processor Technology" section.
Centrino Technology
Centrino® has been around for several years and is Intel's complete wireless solution. Internet connections can be made with either wireless LAN or wireless WAN (cellular) cards. For a system to bear the Centrino Duo logo, the system must contain the following hardware:
q q q
Intel Core Duo processor Intel Napa chipset Intel wireless card
Thermal Solution
The thermal solution for the Latitude D620 is unique. In addition to a thermal pad that adheres to the bottom of the heat sink, an additional EMI pad covers the entire processor. Since the heat sink itself does not fully cover the CPU chip, this pad protrudes from the bottom of the heat sink. Additionally, the heat sink is different depending on the video solution of the system. The discrete version has a different design than the integrated solution, as seen below.
Integrated Graphics Thermal Solution
Discrete Graphics Thermal Solution
Parts Replacement
When the processor is sent for replacement, a heat sink is automatically included. Remove the protective backing that allows you to adhere the pad to the processor on the unit.
Printed 2/22/2007 5:44:33 PM Expires 2/23/2007 5:44:33 PM
LatitudeTM D620 Processor
For Dell Employees Only This document is Dell Confidential
Touch Pad and Biometrics
The LatitudeTM D620 have an Alps® touch pad as well as a track stick. The Alps driver allows you to customize the touch pad and track stick's behavior.
Biometric Reader
The biometric reader on the Latitude D620 is optional, so not all systems have this device. It is located between the touch pad keys towards the front edge of the system. [. . . ] Next, it finds the INF file being used for the driver installation and verifies it was properly installed. Once this step is complete, Modem Helper checks if the associated COM port can be opened; if so, it tests the phone line for a dial tone. If it detects a dial tone, then the HTML screens instruct the customer to contact a DellTM Remote Technician if connectivity problems are being experienced. If no dial tone is found, the HTML screens notify the customer to run Modem Helper and display a hyperlink to start the diagnostic.
Problems Addressed by Modem Helper
q q q q q
No dial tone Driver installation problems Incorrect hardware Card seating problems Setup problems (wiring)
Installation
This application is factory installed on the computer. [. . . ]