Bluelab Guardian LCD screen replacement ...

Crowmax

Well-known member

Veteran

• Mar 9, 2013

• #1

Hi guys
I know a lot of bluelab guardian owners have problem with the LCD screen not working good anymore,
not displaying the digits properly.

I saw a member of the community that found the LCD replacement parts for the Guardian and he soldiered them
on the PCB. Sadly i can't find where is the thread that he posted that.

Can this person or someone else that knows how to fix this give some input?

Where can we buy the LCD parts?
What kind of LCD screens can be used for replacements? I saw at an electronic shop and they have 100 different
types and shapes.

Im pretty lost at this and the LCD of my meter keeps getting worse, in a while i won't be able to read the ph/ec/temp values

Thanks

PS. Meter is out of guarantee so no way to send it to bluelab.

 

V

vspin

Member

• Nov 9, 2013

• #2

I have the same issue. Did you ever find anything out? Thanks.

 

Crowmax

Well-known member

Veteran

• Nov 9, 2013

• #3

Hi vspin
I found some replacement parts from a local electronic store that look the same but i never bought them to try out.

But i though something that i could try for free.
I could unsolder the first 2 LCD digits from each line that still works fine and switch them with the 2 last faulty ones.

I hope i make sense my english is crap and i just woke up, if you don't understand let me know.

Cheers

 

V

vspin

Member

• Nov 9, 2013

• #4

Crowmax said:

Hi vspin
I found some replacement parts from a local electronic store that look the same but i never bought them to try out.

But i though something that i could try for free.
I could unsolder the first 2 LCD digits from each line that still works fine and switch them with the 2 last faulty ones.

I hope i make sense my english is crap and i just woke up, if you don't understand let me know.

Cheers

Click to expand...

Yes, makes sense. Great idea. Thank you.

I have also found these on ebay:
http://www.ebay.com/bhp/7-segment-green

 

habeeb

follow your heart

ICMag Donor

Veteran

• Nov 16, 2013

• #5

damn, I remember that thread.

did you call bluelab. I'm sure they can send you part for $

 

N

nachoconqueso

Member

• Nov 16, 2013

• #6

I also have a guardian with one of bars kinda half burned out. Sucks. At least I'm not the only one.

 

tenthirty

Member

• Nov 17, 2013

• #7

I think that I posted this in the home made led sticky.....somewhere. ;-)

 

Crowmax

Well-known member

Veteran

• Nov 17, 2013

• #8

tenthirty said:

I think that I posted this in the home made led sticky.....somewhere. ;-)

Click to expand...

Thanks tenthirty! FOund it
https://www.icmag.com/ic/showpost.php?p=5331771&postcount=73

 

K

Kctats13

New member

• Feb 14, 2014

• #9

I know this thread is old but in case anyone ever comes across it I just did the repair on 2 of my blue lab guardians and they work flawless. I just opened the meter and ordered the same replacement part printed on the lcd. It's made by Kingbright USA. Part number is CC56-12ZGWA
You can order directly from king bright website. The parts cost $1.99 each. I was able to fix both my meters for around $18 after shipping costs. Buy a desoldering iron from radio shack $14.
I was able to remove the old lcds and install the new ones in about 15 mins.

 

Crowmax

Well-known member

Veteran

• Feb 14, 2014

• #10

Hi Kctats13
Thanks for the info.
I couldn't find the part number CC56-12ZGWA
but i found the CC56-12GWA (without the Z)
i hope this is correct , gonna order them

 

K

Kctats13

New member

• Feb 14, 2014

• #11

Yes that's the right part. Not sure where the Z came from. I'm going to edit my post.
The only difference with the led is the original bluelab display is brighter. This one is a little dimmer. But besides that it works the same.

 

V

vspin

Member

• Nov 2, 2014

• #12

Damn! How did I miss these replies? Thank you all.

Bluelab told me to buy their newest Guardian when I asked for a part number. Ha!

 

UNREGISTRD

Active member

• Mar 5, 2015

• #13

Got a few of these that are going bad..its only PH display..
Ordered a few of the displays that KCTATS13 recommended..Ill post once i do it an if they work...

 

UNREGISTRD

Active member

• Mar 10, 2015

• #14

Got my displays the other day and tackled the task earlier..I might have a newer bluelab cause the numbers on the display i pulled out that werent working were different..They were NFD-5641APGf-11.
Either way there still the same thing.. .56" 4-digit LED display..
I installed the CC56-12GWA displays and they work flawless!
I replaced all 3 displays for under 20$...THanks KCTATS..

 

A

Aussie-adam

New member

• Aug 28, 2016

• #15

Hey I know this post is old but my screen is a gonna aswell do the new displays just click in or do I need to soldier it any help will be much appreciated

 

Q

queequeg152

Active member

Veteran

• Aug 29, 2016

• #16

Aussie-adam said:

Hey I know this post is old but my screen is a gonna aswell do the new displays just click in or do I need to soldier it any help will be much appreciated

Click to expand...

i dont have the unit in question... but ive never heard of a manufacturer using a socket for something like a display.

sockets = money. reflow soldered connectoions = far less money.

you are going to need a soldering iron, flux, some decent LEADED solder, and maby a pair of those component pullers.

you could probably get a decent solder rework kit for like 20 bucks... should include some wick, probes, a sucker and hopefully some sort of component puller. i have one at my office... i think i got it at frys electronics way back.

for a soldering iron i always reccomend the hakko 888 if you plan on soldering more than a hand full of projects... if you are going to use it just once, get an old weller 30 watt iron from ebay, and get a new tiny chistle tip for it on amazon.

should still be way cheaper than getting a new one... im guessing 50 bucks.