HTC MDA2 service manual Checksum

Page 36

3

Touch Test

Tap the cross mark (+) with stylus on the correct location.

Could be LCM issue

 

 

Fail if no reaction

 

 

 

Calibrate the screen following the + mark.

 

 

 

Press ACTION to exit.

 

 

 

 

 

4

Play Test

Play the tone with 8KHz/L-channel, then

Could be speaker or

 

 

Hear the sound and notice if bad sound quality happens

M/B issue

 

 

 

 

5

Record Test

Select this item to record test, then press Action to start

Could be MIC or M/B

 

 

recording. It will automatically playback it. Then connect with

issue

 

 

earphone or external speaker and press action to check

 

 

 

the record function is OK or not thru ext speaker.

 

 

 

 

 

6

Button Test

Press each button to know if it works. Follow the instruction

Could be switch or MB

 

 

shown on the screen to finish the test item

issue

 

 

Stop on fail.

 

 

 

 

 

7

Checksum

Verifies the checksum of the code.

 

 

 

 

 

8

B Light Test

Back Light turns ON and Off, Check the light change

Could be M/B or LCM

 

 

Starting from Level 3

issue

 

 

Press Action button to enter Level 2

 

 

 

Press Action button again to enter Level 1

 

 

 

Press Action again to enter Level 0

 

 

 

Action again for back to MENU

 

 

 

 

 

9

LED Test

The message LED will show starting with RED

Could be LED or M/B

 

 

Press Action LED will change to GREEN

issue

 

 

Press Action LED will change to AMBER

 

 

 

Press Action Key LED will ON (YES & END)

 

 

 

Press again Action will back to MENU

 

 

 

 

 

10

Battery Test

Test main battery and AC power source. Insert AC power

Could be main battery

 

 

CUR will show “+ “means charging , remove AC power CUR

or M/B

 

 

will show “-“means internal power.

 

 

 

Note: The Battery capacity shown is only for reference

 

 

 

 

 

11

Vibrator Test

Press action, units should vibrate.

Check the vibrater

 

 

Press Action again back to MENU

 

 

 

 

 

HTC confidential

© 2001, HTC Corporation. All rights reserved.

TOTAL 43 CONT.ON. 37 PAGE NO. 36

Image 36
Contents For MDA2 APP D Table of contents Product Specifications 2Specifications of MDA2Introduction Specification of AC Adapter GSM/GPRS Functional BlockGPRS/GSM PDA Functional BlockTotal 43 CONT.ON page no Total 43 CONT.ON page no TTE System Block Diagram Servicing Tools Assembling and Disassembling DisassemblingTotal 43 CONT.ON page no Total 43 CONT.ON page no Total 43 CONT.ON page no Use tweezers to remove the Vibrator Speaker Total 43 CONT.ON page no Gasket LCM Poron Total 43 CONT.ON page no Total 43 CONT.ON page no Antenna Assembly TipsFIX Antenna Cover Test Problem Diagnostics List of Test JigsClassification of Non-Conformity Touch Panel Does Not Respond to Screen Tap Buttons Do Not Respond Unusual Vertical / Horizontal lines or partial displayBack Light Does Not Turn ON/OFF SD Card cannot be usedWireless Connection GSM / WAP / Gprs not possible PC Connection USB / Serial not possibleIrDA Connection not possible Data Retention related problem Battery Pack does not startBattery discharges quickly even after fully charged Battery Pack does not rechargeNo Sound from Speaker or Distorted sound No Recorded Sound or Distorted soundHousing Cosmetic damage Diagnostic Program Clean Talk TimeStop on fail Checksum Refurbishment Exploded Diagrams & Spare part list Spare part list Appendix Customer, Retailer MisjudgmentResponse HTC confidential Repair Troubleshooting Guide

MDA2 specifications

The HTC MDA2, released in the early 2000s, was a significant entry in the realm of mobile communication technology, ushering in features that set a standard for future devices. As part of HTC's lineup, the MDA2 was designed primarily for professionals and tech enthusiasts seeking a balance between functionality and portability.

One of the standout features of the HTC MDA2 was its operating system, Windows Mobile 2003. This platform was notable for its user-friendly interface and compatibility with various productivity applications, which were essential for business-oriented users who relied on their devices for daily tasks. The device came equipped with a 400 MHz Intel XScale processor, ensuring that it handled tasks efficiently despite its compact size.

Display technology was another highlight of the MDA2. It featured a 2.8-inch TFT touchscreen that offered a resolution of 240 x 320 pixels. This display allowed for a clear and vibrant interface, making navigation easier while accessing applications and emails. Additionally, the device boasted a stylus, further enhancing user interaction with the touchscreen.

Connectivity was a focal point of the HTC MDA2, which supported GPRS and EDGE networks, along with Wi-Fi capabilities. This made surfing the web and accessing online content swift and effective—a crucial advantage in a fast-paced business environment. The presence of Bluetooth 1.2 allowed users to connect wirelessly with other devices, promoting seamless data transfer and hands-free capabilities.

Memory capacity was also an important consideration, as the MDA2 came with 64 MB of RAM and 128 MB of internal storage. While this may seem modest by today's standards, it was adequate for its time, with the option to expand storage further using an SD card. This feature allowed users to store applications, files, and media without significant limits.

The HTC MDA2 integrated a 1.3-megapixel camera, allowing users to capture images on the go—an essential feature during a time when mobile photography was gaining popularity. Although not equipped with advanced camera capabilities, it provided basic functionality for mobile imaging.

In conclusion, the HTC MDA2 was a pioneering device that encapsulated the technological trends of the early 2000s. With its emphasis on productivity, connectivity, and user experience, it laid the groundwork for the evolution of smartphones in subsequent years, establishing HTC as a key player in the mobile technology landscape.