Items filtered by date: December 2014

These are my notes on BGA reflowing and some electronic notes

• well tip, chisel tip - these are the best for SMD attaching as per EVVblog
• melting point leaded 183c,lead free 217c - read V3 scotle Document Pg44
• met full melt, 200/235 reflow occurs
• moisture in board 15 mins 150c - read V3 scotle Document Pg48
• set the soldering iron to 400 for wiping solder balls etc..
• 195 - leaded solder meltin
  225 - leadded melting point
• on other video 26.00 johnny tells you where to get his profile from scotle ir-360 queiries @ bgamods.com, http://bgamods.com/forum/viewtopic.php?t=575
• about scotle software: the software is designed to take the reading from the external tc only when using the ir360 pro.
• Cooling: Hi Karl / Anybody. I'm back working on my IR360 Pro and have a question.
  Q: What is the best way to use the Cooling and IR Cooling fans on the IR360Pro. (don't want to switch them on too soon and damage the board, and don't want to leave it too late and damage the plates)
  A: coleman (bgamods moderator) I swing the top heater out of the way at 200C and switch fan on for that and then turn on bottom fans when board hits 140C

• How to build a profile (from BGAMods Forum)
  Q: what way the do you create a profile with a three zone machine ? (jaymbyrne)
  A: The principal is still exactly the same as i never run an actual profile with the lower HR. i just have it set to the same temp as the lower IR and have it running constant so both lower IR and HR should heat at the same rate to give a nice even preheat. ive posted an example profile for ivan but ill do a quick guide tomorrow AM and get it upped in this section.(bgamods) JonnuGunz has a better method.

• Basic Soldering Lesson 1 - "Solder & Flux"  - http://www.youtube.com/watch?v=vIT4ra6Mo0s05.26 - show different solder meliting points

• For the ball re-attach (i think this is johhnygunz advice)

  - 1 profile 1.0/190/1000 and just watches them manually (this is for lead free)
  - most will reattach from 80c but when using the machine cold it can go all the way up to 180/190
  - note all bottom heaters are set to off HR (hr = heat radiation ?)

Scotle IR360 Pro V1] Xbox PHAT GPU Reball - Walkthrough

https://www.youtube.com/watch?v=teFwYPRgp5s

• what is MEK  (cleaning fluid) (it is methyl ethyle ketone, a strong organic solvent, from ebay)
• people use Q tips
• get captopn tape and dispenser, better than aluminuim? heat resistant, aluminium tape reflectecs
• can pull aluminuim tape off at 75 - 80c and leave no residue

• put the probe right next to the chip but not touching it

• using RMA 218-kingbo flux for putting around the rim of the chip before lifting, he is quite liberal, bead all the way around it

• multimeter is used for TC display

14:33

• lower air adjustment flow is  is set at 4, close to board, 1-2 cm, temp is set to 225c (permanent setting)
• lower plates set to 225
• using medical sicors to hold board down

17.03

• upper ir head height lower possibly 30mm
• scotle TC might be off 5-8c cooler
• he makes sure the chip is in the middle of the IR top heater, using the angled tooth pick

18.57

• he starts the program and you can see the TC he put down earlier (the one on the multimeter
• target temp is about 225?

21.15

• heat sink off, profile off, ir cool on

21.25

• he starts to clean the board up whilst it is still on the machine, profile finished

23.55

• he is using a cheap angle iron and solder braid to clean off the pads
• he turns the lower air flow  right down because the air is colder and is hindering the cleanup process
• thinnner wider wick is better

30.33

• now the flux is dry he is using the weired sponge thing to clean it of the chip site (painting tool)
• cleaning site with q tips and MEK
• 2-3 passes at most, 1 is better for cleaning the pads

38.00

• preping the top ir for reballing the chip
• he uses pressboard/cedar wood to cover the bottom nozzle
• 2 ways to attach the balls to the chip, 1) wand method (hot air stick) (2) this ir methos, or (3) hot plate
• ir head about 3cm above the would
• profile 190 degree a second
• by the time it reaches mid 80s they ae pretty much all attached
• does not seem to use the inbuilt probe

40.11

• reballing the chip
• recommends the scotle angled/diagle rework gig
• kingbow flux again to clena the chip
• clean tip
• typically use a different iron (hako from freds electronics, big wattage)
• take solder of the chip
• clean chip
• changes iron again to a dirty looking one/ angled iron (cheap iron) for using solder braid

51.25

• grabs tacky flux (superior tacky flux 8600 RMA water soluable) for sticking balls down

52.30

• mwntiones about using to much flux
• now pours balls in

56.23

• back to machine for ball reattachemnt via top ir
• get the probe close to the chip, it isnot touching the wood

58.29

• tight shot of process
• make sure you turn off your bottom plates
• lower nosel turned off (0 and wood over the top)
• if you like you can use you second probe (againn not touching chip)
• once the balls have attached move it to on top of an xbox heat sink, cools the chip in 10 seconds
• his balls bonded about 130c
• balls can attach about 80c

101.32

• he says the balls already look attached
• scotle says 130c and his other TC says 93c
• when the machine is totally cool you might find you have to go all the way up to 185c/190c
• but once your TC says around 175/180c keep an eye on the balls, get right down and look at them
• flux can smoek a little
• balls reattached at 190c

103.30

• shows how balls that did not attach can be fixed with a hot air wand 430F - 221C air speed .06 or all the way down

107.28

• test balls are seated correctely

108.18

• back at scotle
• attaching sissors to prevent board lifting up

110.50

• starting board prep

115.00

• setting bottom plates back to 225c
• looking for temperatures of 190c

115.72

• profile start
• looking for temperatures of 190c/195
• temperature hit
• ir cooler on
• this guy says he does not put the cooler on until 100c because of shock to the board (he is not sure about this)
• let cool down
• dont put cooler on until board has cooled down to 100

117.18

• 37c tempaerature
• now start pulling tape off at 37c, this prevents residue from the tape
• clean chip area if needed

120.16

• board removed from scotle
• turn lower cooler off
• done

Notes From Comments

• Q: what kind of solder are you using? Is it the low melt 50/32/18? or just regular rosin core for electronics? (im speaking of the wire and not the solder balls.)?
  A: I'm using? MG Chemicals 63/37 Rosin core that I picked up at Fry's Electronics. It's the largest diameter for just pooling it for desoldering.(XJonnyGunsX Youtube comments)
• never spread thermal paste with? your finger at all. in fact, dont spread it anyway since it leaves air bubbles. the best way is just to leave the pea and put the heatsink on.
• Q: Hi jonny. Great video mate. just getting into this myself. got a couple of questions if you could help me out. what temp was your soldering? iron at when cleaning the pads on both board and chip? also did you say reball with leaded solder? Thanks
  A: Thank you, sir! Appreciate the kind words. I have my Hakko FX-888D set to 755, which is just above 400 Celsius. I also use a chisel tup to transfer as much heat, as quick as possible, over to the solder wick. Yes, it is best to use leaded solder. That is all I use. It works out so much better. Thank you again! Best of luck with everything. It's such a great learning experience with doing this type of work!? (XJonnyGunsX Youtube comments)
• Q: When you used the aoyue to heat the balls on the? chip, did you say 430 Celsius??
  A: I must have been off my rocker? when I said that. It's 430 Fahrenheit, which is 221 Celsius. Sorry about the confusion there! :] I will correct this, via annotation. (XJonnyGunsX Youtube comments)

These are my questions about the Blackjack BK6000 SMD rework station and the answers from Circuit Specialists (Brett).

Question Set 1

• Blackjack bk 6050, is it better than the BK 6000?
  They are different units - the BK 6050 does not have a hot air gun, but does have a 70W soldering iron that uses the standard tips - the BK 6000 uses the cartridge style tips. It's difficult to compare the units because the facets of each differ. They are both good units and the best unit will be determined by what you need. i.e. if you need hot air, that rules out the BK 6050. If you don't need hot air, perhaps then the BK 6050 is the better choice.
• Can you have the soldering iron without the fume extractor on? Yes
• Are the soldering tips the type with the heating element in them and are the cartridges standards? Yes
• Are all the tips and filters standard? Yes, we have replacements in our store
• What warranty do I get? 12 months
• Can you confirm the gun, iron and wand heat ranges
  Iron - 250 degrees C - 480 degrees C
  Desoldering Pistol - 200 degrees C - 480 degrees C
  Hot Air - 100 degrees C - 480 degrees C
• Can I use other brand tips/parts etc..?
  We know that Aoyue tips are compatible. We also have over 30 different types available on our site.
• Is this suitable for lead and lead free? Yes
• Is it a rebranded aouyne?
  Presume you mean Aoyue? - It's not a re-branded anything. These units have been designed from scratch, although there are a number of similarities with the Aoyue brand.
• Is blackjack your in-house brand name? yes

Question Set 2

• The desoldering gun, is this as capable as the hakko 808 as I need a desoldering gun, but already have a kada 852d+ smd rework station. I was thinking about replacing this while I was purchasing a desoldering gun with the bk 6050 instead of just bying a desoldering gun.
• I want to make sure I buy a station that just works.
• Can you recommend a desoldering gun, I do not know what is best, all self contained or one with a station.

I've no experience of the Hakko 808, so it's difficult for me to provide any comparison.

What I can tell you is that both the BK 6050 and BK 6000 are good stations. Both have a 70W output on the desoldering side, so should be more than capable of doing the job.
Sorry I can't give you any more insight into the station against the hand-held solution.

I would imagine that a pistol backed by a station would have more power, but again with no direct comparison to make in terms of the items we stock (station vs handheld), but I stress that I am speculating rather than speaking from a position of having tested handheld units.

Best regards,
Brett

Question set 3

I only noticed after you mentioned about the 6000 having cartridge type heating and the 6050 having sheath.

• Can you use a 6050 sheath type iron on the 6000 ?
  No. The circuitry is different and the pin-out is also different.
• Are cartridge type tips more used by proffessionals because they are hotter and have better thermal recovery?
  Yes, absolutely right.
• Will blackjack be making a station where all 3 (iron/wand/gun) are connected at the same time? (this is the only downfall I have found)
  No current plans. This would significantly increase the cost, with no major benefit other than convenience. We did look at this option but decided that anyone really wanting to run an iron at the same time as the tweezer could do so with our BK 3000LF, which uses the same tips. The cost of adding an extra peripheral would not be far off the price of a whole new station.  It makes more sense to offer a bundle price on a BK 6000 and BK 3000LF for example for those who need 2 irons at the same time. From experience most people do not and are happy to change them over. 

Question Set 4

• When the gun is connected, Is the vacuum pump active all the time or only when the button on the desoldering pump is pressed. Only when the button on the gun is pushed
• When the soldering iron is connected is the vacuum pump always on? Can this be toggled? There is a switch to toggle the pump for the smoke absorber
• Is the vacuum generator double cylinder like the BK4000? Yes
• Can you give specific compatible Aoyue tips/model numbers for the soldering iron and gun. The reason for this is so I don’t feel trapped in your eco system. Even though you supply everything. I am guessing Aoyue 2702A+ ?
  Any tips with a WQ- or LF- prefix. Aoyue use these prefixes too. Iron is the B012 and pistol the B1003A. I believe that Aoyue also use these numbers and the parts are compatible.
• Are you able to supply spare parts (including internals)? Yes
• Is circuitspecialists.eu and circuitspecialists.com the same company? Related but not the same company.
• Are there any plans for a Aoyue 2703a+ clone, I would buy your version of this right now because of the dual port and an added extra of 5 stage rework programming?
  We are looking into this, but I have no firm info at the moment on whether we will add or when it would be added. It would be a good addition to our range though. If it were to be added, I would anticipate at least a 6 month lead time for it to be designed and approved.

Links

• Aoyue 2703A+ Soldering Station / Repair System ((UNBOXING)) - YouTube
• Aoyue 2703A+ Soldering Station Functionality & Review (1 of 2) - YouTube
• Aoyue 2703A+ Soldering Station Functionality & Review (2 of 2) - YouTube
• Hot air stations - Aoyue vs Blackjack / All-in-one vs separate units? - Page 1
• Soldering/De-soldering stations...again... - Badcaps Forums

Thermal Transfer Pads are used to bridge the gap between Heatsinks and Chips where heat paste will not bridge the gap, they are those blue sticky pads. A usual place to find these is in a laptop on the GPU between it and the heatsink. There are several sizes 0.5mm,1.0mm, 1.5mm, 2.0mm and 3.0mm. There might be other sizes but these are the main ones. For my research so far it looks like 1.5mm is the one most used.

These should all be non-conductive. I have ordered a Grey one and had White arrived and the guy said they were the same. Also a small note that they have different values of heat transfer, for the most part this should not be a problem for general laptop repairs.

Thermal Transfer Pads are also known as:

• Thermal Paste Pad
• Thermal Pad
• ThermalPad
• Thermal-Pad
• Thermal Heatsink Pad
• Thermal Heatsink Transfer Pad
• Conductive Heatsink Tape
• Thermal Conductive Pad
• Thermal Conductive Silicone Pad
• Heat Transfer Pad
• Phase Change Pad
• Silicon Pad
• Silicon Thermal Pad
• Thermal Heatsink Transfer Pad
• Thermal-Pads are high quality Thermoplastic Components
• Thermal Sink (not always used)

I have bought from:

• 10x10x1mm Silicon Thermal Pad Heatsink - kissbuyonline (eBay) - cheap chinese
• 100mm x 20mm x 1.5mm double sided self adhesive -  thegamebooth (eBay) - could be better quality
• 100mm x 20mm x 2mm double sided self adhesive -  thegamebooth (eBay) - could be better quality
• 100mm x 100mm x 2mm Thick Thermal Pad ecamonline2012 (eBay)- cheap chinese
• [EC-360 GREEN] 2MM ThermalPad 100x100mm, Adhesive 2.5W/mK RAM Heat Transfer | eBay - not bought this but seems high quality product. different heights available

Notes

• thegamebooth seem to sell better quality transfer pads
• pads all have different rates of dispersing the heat. be carefult to check this.

When configuring a joomla's website email settings (or other email app) you can add a clients email address as the 'From email' (joomla admin / System /  Global Configuration / Server / From email ) and usually when you do this, joomla sends the email as if their email had sent it, and then client receives it.  With yahoo this does not happen

Cause

Yahoo will not accept email from other email servers proporting to be yahoo. They enforce SPF and so i cannot spoof an email address to send email yahoo or possibly other email address.

Read this from yahoo - Help Central | - SLN7253 - Error "554 5.7.9: Message not accepted for policy reasons" when sending email to Yahoo

This might also apply to other email companies ie. Google and Bing, if not now probably shortly.

Solution

The fix is to set the 'Mail From' with valid email address on your domain. You can then set an alternative reply address to accomodate for cutomers who use yahoo/bing/google email accounts exclusively. The email will come from the email from their domain but if you set the 'subject' with something like 'website enquiry' you can set an antispam rule to prevent the email getting filed in their junk folder.

Notes for cPanel

• you might be able to send emails from any address on your domain without creating a real account
• if you set up a forwarder, be aware that some companies (hostdime) will run CRON jobs to delete forwarders to the providers of free email addresses such as Yahoo!, AT&T, AOL, and MSN/Live/Outlook.com/HotMail. (possibly google/outlook/yahoo). This prevents their servers getting blacklisted by these providers.

Joomla

(joomla admin / system /global configuration / server / mail settings)

• Mailer - leave as PHP Mail, Sendmail does not work
• From Email - set as no-reply@yourjoomladomain.com, this does not require a forwarder or mailbox but make sure the catch all account is off. But you can use a real address if you want.
• From Name - Set as normal

JSN Uniform (additional)

These step are not require for the email to work but allow the reply option to work as intended

• open uniform
• edit the contact form
• go to the 'Action' tab
• click on the 'email edit' button next to 'Send to email(s)'
  •  From          - This is the From Name and not the sending email address so I insert the customers name field here.
  •  Reply To    - click on the '...' button and select 'Email', this will set the reply address as the contact form senders address
  •  Subject     - This is not required to fix the email issue but makes things look neater. type 'From Website - ' then click the  button and select 'Subject'

* starttls allows a plain text session to upgrade to TLS

This trick can be used for diagnosing your email connection issues. There are more complicated featurees can be typed but are not covered here.

The following commands need to be typed in exactly and then followed by pressing the return key. Yhe session will not handle deletions, if you perform a deletions you will need to start again.

telnet testserver-com.mail.eo.outlook.com 25
ehlo testserver.com
mail from: bob@builder.co.uk
rcpt to: info@testserver.com

This is a stupid feature that cannot be turned off so you have to use one f the following solutions and Pasting a pic in an HTML composed messaged will call the Photo-Email option.

Work Arounds

• Configure your mail to use Plain Text instead to Html and attach the message.
• Don't paste...use the Insert/Inline option to insert a previously saved picture
• Attach the images using the 'Attach' button

Add a Text file

This is my prefered option and does not require any loggin in.

1. select a dummy .txt file with the .jpgs i select
2. send
3. then delete the text file from the email before sending.

Turn the Option Off Photo Email

I did not managed to get this to work

That option(in WLM Version 2009/Build 14.x) is only present if signed on with a Live ID and no longer available in WLM Version 2011/Build 15.x

In Version 2011...
Windows Mail button(first item on Ribbon Menu)/Options/Mail/Compose

• uncheck 'Convert message to photo e-mails when adding photos'

Thereafter choose Email Message instead of Photo Email for the three available options

• Attach file
• Insert Single Photo(Single in name only, it allows selection of one or more to be inserted)
• Photo Album(changes message to Photo e-mail)

Note: In Version 2011...Photo email creates an album with included photos and uploads to the signed on Live ID's SkyDrive(if not signed on, the user will be prompted to sign on with a Live ID to Windows Live). The Live ID does not have to be the sending email account. (i.e. Photo email pictures are no longer uploaded to a generic Msft server, they are uploaded to the user's Live ID's SkyDrive)

Bypass Skydrive

This method of bypassing Skydrive works, it is the one I use all the time.

1. SkyDrive bypass for pictures in email
2. Go to picture source (My Pictures) select pictures (Ctrl-Click for multiples)
3. Click on email (on top of screen) select size (if other than full size desired)
4. Click attach, it should then open in Windows Live Email.
5. It will be in the Sky Drive format
6. Click on one of the pictures
7. Click the format button on top
8. Click the paperclip
9. That cuts out SkyDrive and makes the photos regular attachments.
10. Add email address, type message and send

but it requires you to log in.

A Long Workaround

• open e-mail
• click on start
• click on pictures
• click on and open desired file group
• click on first photo to hilite it
• go to preview and click on arrow
• click on windows live photo gallery to open
• click on edit, organize and share
• click yes on popup box
• click on select all (or select pictures you want to send)
• click on photo emailer (top right side)
• click on send photos as attachments
• choose desired resizing option and click on attach
• a new send e-mail window will open with the photos inserted as attachments
• add recipients, subject, text and send.

This article is to help me remember the basic syntax of MySQL statements. It is as simple as that.

Select

SELECT *
FROM dbprefix_menu
WHERE menutype = 'main'
AND alias = 'com-projectfork'
LIMIT 0 , 30

SELECT * FROM dbprefix_menu WHERE menutype = 'main' AND alias = 'com-projectfork' LIMIT 0 , 30


SELECT * FROM `zims_categories` WHERE `extension` = 5 
SELECT * FROM `zims_categories` WHERE `extension` = "com_hwdmediashare" 
SELECT * FROM `zims_categories` WHERE `extension` = 'com_hwdmediashare'
SELECT * FROM `zims_categories` WHERE extension = 'com_hwdmediashare' 

Update

UPDATE `fcenb_k2_items`
        SET `created_by`=784
        WHERE `created_by`=43

UPDATE `fcenb_k2_items` SET `created_by`=784 WHERE `created_by`=43


UPDATE `fcenb_hwdms_media` SET `created_user_id`=784 WHERE `created_user_id`=43;
UPDATE `fcenb_hwdms_media` SET `modified_user_id`=784 WHERE `modified_user_id`=43;

Update wp_post_notification_emails SET gets_mail = '1' WHERE gets_mail = '0'
UPDATE zims_k2_categories SET access = '3';

Other

ALTER TABLE zims_pf_access_flags_tmp ENGINE=Innodb;
ALTER TABLE zims_pf_access_levels_tmp ENGINE=Innodb;
ALTER TABLE zims_pf_comments ENGINE=Innodb;

 Notes

• MySQL processes each row in order from the beginning of the database for each statement.
• All statements are row dependant.
• i dont think that UPDATE/SELECT/ALTER etc.. have to be in capitals but it seems the convention

These are my notes on some BT engineer visits that were scheduled to try and fix my constant broadband drop out. The signal to noise ration would completely drop at random times usually monday to friday and between 09.00 and 17.00 causing the broadband to go off. This is obviously something on our estate but after checking all of our kit and having a look around the small industrial estate for the source of the interference which we could not find, it was time to call BT to try and fix the problem.

First Visit

These notes were told to me by the reins engineer that came out the other day with gary

• Copper pair should be at standard sin349

• 612 mw/am is wavelenght bb runs at

• wideband noise

• tester 44b – BT reins checking kit with gain control to help get a direction on the signal

• impulse noise – noise caused by reins interference

• JBSU – tester kit used by BT (the one with the ADSL stuff in it)

• impulse noise cout – scale for checking imuplse

• white band noise (possibly wide band noise)

• AC balance – the ability of the twisted pair to reject/prevent noise. Must test each cable seperately?

• 60db is the minimum signal strength for a reins case, ours is 68db. 8Db over the limit. The higher the signal the better the quality fo the line

• impule noise test

• Dside, E side [premesis to box, box to exchange]

• print out graph for engineer and leave on router

• kitz.co.uk is run by a woman !!!

Second visit

gary and laurence

• rf3 filter (small one) but better than normal

• Line Filter 3a , double size filter, a lot more precise, excellent for sorting reins issues

• when the line drops try a quiter line test and see if there is any crackling (use normal handset)

• try a quite line test when the broadband modem is dialing up to se if any crackling

• 621AM get a radio and see if there is any interferece at the time of the issue

• put draytek back on so they can see the sync drop. They dont nessasarily see the PPP drop (ie plusnet router)

• the guys tried both of their new filters which both caused crc error

I have Windows 7, when I upgraded all my outlook contacts transferred to Windows Live mail. I entered the pop 3 info for my comcast email account, I have never had to sign in for over a year. Now for some reason everytime I check my email, a  sign in window appears, the email still seems to work, maybe a little more sluggish but the sign in keeps popping up. How do I disable the sign in? If I wanted to get my hotmail mail I know I would need to sign in, but I use it just like I did my outlook account that is connected to Comcast email account.

• The Windows Live Mail drop-down menu icon (top left above 'Email Message' icon). 

• Select 'Options', then click on 'Mail' from the selection offered.

• In the mail 'Options' property pages, select the 'Connection' tab and click 'Stop Signing in' from the 'Connecting to Windows Live Services' section.

• Click 'stop signing in' to any warning messages.

• Click 'OK' to exit the 'Options' Property pages