Nokia 7373 LCD Screen Repair

How to repair lcd screen?Now you can repair nokia phone lcd screen. Just do it.Its a easy way to repair nokia.
Nokia 7373 LCD Screen Repair

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Interfacing Alphanumeric LCD

This page will let you learn a very easy tutorial on interfacing alphanumeric LCD.I opted for interfacing LCD with parallel port using visual basic 6 programming.With ease of programming in graphical user interface environment and its event driven nature makes this project more innovative.Working with DLL files in visual basic is easy as compared to C++ for programming parallel port.Before staring with Visual Basic 6 programming one should be clear with the concepts of the parallel port.Refer this link Parallel port tutorial

Lcd used here has HD44780u dot matrix lcd controller.

Connection Diagram:

Caution:Make sure that 5V and GND lines are properly connected otherwise you may end up in damaging parallel port.

If you want backlight than connect pin 15 of LCD to 5V and pin 16 of LCD to GND. By adjusting 10k resistor make pin 3 of LCD at 0V. If connection are proper you will see this after power on.

LCD Video

Pin Information of LCD:

Algorithm to send data to LCD:

1.Make R/W low

2.Make RS=0 ;if data byte is command

RS=1 ;if data byte is data (ASCII value)

3.Place data byte on data register

4.Pulse E (HIGH to LOW)

5.Repeat the steps to send another data byte

LCD Initialization:

This is the pit fall for beginners.Proper working of LCD depend on the how the LCD is initialized. We have to send few command bytes to initialize the lcd. Simple steps to initialize the LCD

1.Specify function set:

Send 38H for 8-bit,double line and 5x7 dot character format.

2.Display On-Off control:

Send 0FH for display and blink cursor on.

3.Entry mode set:

Send 06H for cursor in increment position and shift is invisible.

4. Clear display:

Send 01H to clear display and return cursor to home position.

NOTE:One must refer the datasheet of LCD to get the proper time delay and required sequence.

Major hurdle in accessing parallel port in Windows Xp is the knowledge of using inpout32 files.

Download : Driver files

Now save inpout32.dll and port.dll in system32 folder in windows directory.We will use certain subroutine provided by these dll files in our VB6 code.Open new project in VB6 and create the form as shown below.

Set the max length of two text boxes to 16.Create "Start" and "Clear" command button.Add visual basic code to form.

Visual Basic Code

Dim data As Variant

Private Sub Clear_Click()
LowRs
Out Val(&H378), Val(1) ' function to send data to parallel port
Enable
txtlcd1.Text = " " ' line 1 for LCD
txtlcd2.Text = " " ' line 2 for LCD
End Sub

Private Sub Start_Click()
Out Val(&H37A), Val(Inp(&H37A) And &HDF)
lcd_int
LCDWriteString txtlcd1.Text
next_line ' function to set cursor to second line
LCDWriteString txtlcd2.Text
End Sub

Sub LowRs()
Out Val(&H37A), Val(Inp(&H37A) Or &H8) ' Rs Low
End Sub

Sub LowEn()
Out Val(&H37A), Val(Inp(&H37A) Or &H1) ' En Low
End Sub

Sub HighRs()
Out Val(&H37A), Val(Inp(&H37A) And &HF7) ' Rs High
End Sub

Sub HighEn()
Out Val(&H37A), Val(Inp(&H37A) And &HFE) ' En High
End Sub

Sub lcd_write(data%)
HighRs
Out Val(&H378), Val(data)
Enable
End Sub

Sub next_line()
LowRs
Out Val(&H378), Val(&HC0)
Enable
End Sub

Sub lcd_int() 'subroutine to initialize LCD
LowRs
Out Val(&H378), Val(&H38)
Enable
LowRs
Out Val(&H378), Val(&HC)
Enable
LowRs
Out Val(&H378), Val(&H6)
Enable
LowRs
Out Val(&H378), Val(&H1)
Enable
End Sub

Sub Enable()
DELAYUS 20000
HighEn
DELAYUS 2000
LowEn
DELAYUS 2000
End Sub

' function to send ASCII character one by one to LCD
Public Sub LCDWriteString(ByVal OutStr As String)
Dim i As Integer 'write a string to LCD
For i = 1 To Len(OutStr)
lcd_write (Abs(Asc(Mid(OutStr, i, 1))))
Next i
End Sub

Now go to Project>Add Module .Select inpout4.bas and port.bas

Subroutine Out Val (&address),Val(data) and DELAYUS 2000 is available in inpout4.bas and port.bas respectively.

Running the Program:

1.Press F5 to run the program

2.Write the text you want to display on the LCD in the textboxes

3.Click "Start" command button.

4.You will see that the same text appears on LCD as shown in the textboxes.

5.To send other text click "Clear" command button and repeat the same procedure.

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Vodafone,Nokia 6300 unlocking and another phone lcd repairing

Problem 1:

Your Name: Vodafone Shares
Your Email Address: info@stopvodafone.com
Subject: Vodafone
Message: Dear reader,
Vodafone shares are in danger because of malpractice by Vodafone NL.
The attack on the Vodafone shares will come from 400 unhappy Dutch Vodafone customers. All because of excessively high invoices as a result of Vodafone’s technical disability to provide insight into data usage for months on end, be it online or otherwise. Within weeks, through Stop Vodafone, I (SWAS) mobilised the Dutch Vodafone victims to join me in a claim against Vodafone NL.
In the event of Vodafone’s refusal to satisfy the demands of its Dutch mobile phone and internet subscribers, I intent to start publishing articles about Vodafone practices on the international internet scene. Cluttering the SERPs (Search Engine Results Pages), I hope to be able to cause less and less people to sign a contract with Vodafone and to raise an alarm amongst Vodafone shareholders that will result in Vodafone NL’ submission to the unsatisfied Dutch Vodafone customers’ demands: Return of payments from the moment the malpractice began and the option to immediately end the contract from the same moment.

At http://www.stopvodafone.com/vodafone-zoektermen/ you can check the results I managed to get for Dutch Vodafone related terms via google.nl. No doubt, I can do the same for the UK SERPs.

Solve:Keep it up.I am not understanding your website language.So I cant comments your site.

Problem 2:

Your Name: Craig
Your Email Address: water_rat_68@yahoo.com.au
Subject: Unlocking Nokia 6300
Message: Hello, i am having trouble unlocking my mobile phone. I brought off a friend, but it is locked to vodafone. I would like to be able to use my optus sim card in it. Could u help me out, please.Thankyou, regards Craig.

Solve:Hei Craig ,You can unlock your phone in 3 ways.

1.Check your IMEL number using *#06# and buy a unlocking code.

2.Using Nokia unlocking software.DOWNLOAD SOFTWARE.

3.Go to cell phone specialist.

Here is some video tutorial for you.You can unlock your phone easy just see this video tutorial.
Nokia 6300 Unlock Tutorial

Unlock Nokia 6300

Nokia 6300 V5.00 Unlock via Raskal Box by www.GSM-Style.de


Problem 3:

Your Name: sattar
Your Email Address: shabbir_jani@yahoo.com
Subject:
Message: x200 not display i change ribbin and lcd but blue screen and mobile pick the call and change softwere but cofuse not display plz help me.

Solve:Hmm..but what is your mobile company?Samsung x200, VX-X200 VK Mobile phone or Panasonic X200.I am confused.Please check again your ribbon and lcd screen.It is not a software problem.Its a hardware problem.Some video tutorial for repairing mobile phone lcd.

Nokia N73 Display repair (demontage)


water damage mobile LCD cleaning


Cellphone Repair (D807)


mobile phone repair, phoneinc :)

How to change a Nokia N73 LCD / Replace


LINK SHARE

Your Name: philip
Your Email Address: pmathew97@gmail.com
Subject: http://youtubevideoconvert.com/
Message: Download youtube videos direct to your PC, iPod, PSP, iPhone, Mobile, Mac..etc for free.. Its fast

Check http://youtubevideoconvert.com/

Convert to more popular format like .WMV .MOV, .MP4, .3GP, .MP3 etc.

REPLAY:I am using your link.So you can use my link on your site.Thnx 4 sharing your link.Take care.

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