GME TX3500S User manual

GME TX3500S LCD Screen & Back light fitting Instructions
LCD Screen fitting, follow steps 1-19
Back light fitting, follow steps 1-9 then 20-25
Thank you for purchasing one of our products.
We have put together some instructions for the fitting of the LCD screen and or Back light you purchased.
If you have any feedback in relation to our instructions please feel free to let us know.
Before you start, you need the following
- Clean area to work in.
- Small phillips head screwdriver.
- Small flat head screwdriver.
- Pointy nose pliers - to remove the nuts and washers behind the knobs.
- Clean hands, don't be a grot and make sure your hands are clean!
This should take you no more than 25 minutes.
The only thing that you can damage is the LCD plastic housing holder if you don't straighten the ta
on the metal LCD frame when you are disassembling it.
WARNING
If you think this is a bit beyond your skill set, we can do this repair for you.
Please contact us for further information.
2019v1.2
GME TX3500S LCD #116003
GME TX3500/S Back light #113026
If you have the earlier TX3500 unit, without the 'S', this part will not display correctly & have contrasting issues.
The earlier version of the TX3500 originally had a different LCD Part, and this was changed in later production
of the TX3500”S” model. If you have the earlier TX3500 there will be display contrasting issues where all the
segments will light up faint in the background but unfortunately enough to be a distraction when view straight on.
When viewed at an angle you can see the display ok.
PLEASE NOTE - TX3500 vs. TX3500S

GME TX3500/S LCD Screen fitting Instructions
1. Remove the volume and channel knobs,
these just pull straight off. 2. Undo the 4x case screws on both sides if the unit.
4. Unscrew and remove the nuts and washers.
5. Slide the front head shell away from the radio body. 6. Remove the LCD assembly from the header pins
from the radio. It should easily come off.
When re-assembling, make sure that all the pins
line up before re-attaching.
7. The LCD assembly removed.
9. push these tabs back with the flat blade
screwdriver so they are not catching
on the pcb and gently remove the pcb.
10. This is a tricky bit: Gently prise off the metal LCD
housing from the plastic holder. You may have to
straighten the metal tabs with the pliers so they
pass freely through the plastic holder.
8. Unscrew the 2x screws.
3. Carefully lift of the speaker side and remove
the speaker connector from the pcb.

GME TX3500/S LCD Screen fitting Instructions
11. Remove glass LCD and silicon strips from the
metal housing and put to one side so as to not
confuse it with your new LCD.
12. Get your new LCD kit opened and ready.
Did you clean your hands? You need clean
hands for this part. If you get fingerprints or
grime on the silicon strips or LCD contact
points you will have issues after you have
re-assembled it and will have to do it again.
13. Get your new LCD and silicon strips and place them
into the metal housing the way the old screen was
removed. You will see a small bubble of glass on the
long edge of the screen, this lines up with the hole
in the metal housing. ***DO NOT FORGET to
remove the protective plastic film on the LCD.
14. Carefully re-instert the metal housing tabs back
into the plastic LCD holder. This will be fiddly
if the metal tabs are not straight.
15. Use the isopropyl alcohol swab provided to clean
these 2 sets of carbon contacts on the pcb.
WAIT FOR IT TO DRY before attaching the pcb.
16. Check that the rubber keypad is up the correct
way, then mount the pcb onto the plastic housing
making sure all the metal tabs come through and
snap tightly onto the pcb holding it in place.
Everything should fit back snugly.
17. Put the 2x screws back in. 18. Re-mount the LCD assembly to the radio body,
make sure all the pins line up on the connector.
Connect power to your radio and check that
the screen is working, all the segments are ok
and the back light is illuminated.
If the display is not displaying correctly, check that all the pins are in the right spot where the LCD assembly
is connected to main body of the radio and you have it the correct way up. If that all looks ok, you will have
to repeat steps 8 to 17 and try again.

GME TX3500/S Back light fitting Instructions
20. Using the solder wick provided, unsolder the
8x points as shown. Its important to remove
all the solder.
21. Fit the new back light.
22. Turn over and carefully solder the 8x points again.
You will have to double check that no solder has
bled over to the neighbouring pad otherwise you
may cause damage..
19. Follow steps 1 to 9 and continue below.
23. Check that the rubber keypad is up the correct
way, then mount the pcb onto the plastic housing
making sure all the metal tabs come through and
snap tightly onto the pcb holding it in place.
Everything should fit back snugly.
24. Put the 2x screws back in. 25. Re-mount the LCD assembly to the radio body,
make sure all the pins line up on the connector.
Connect power to your radio and check that
the screen is working, all the segments are ok
and the back light is illuminated.
If the display is not displaying correctly, check that all the pins are in the right spot where the LCD assembly
is connected to main body of the radio and you have it the correct way up. If that all looks ok, you will have
to repeat steps 8 to 17 and try again.
If you have the earlier TX3500 unit, without the 'S', this part will not display correctly & have contrasting issues.
The earlier version of the TX3500 originally had a different LCD Part, and this was changed in later production
of the TX3500”S” model. If you have the earlier TX3500 there will be display contrasting issues where all the
segments will light up faint in the background but unfortunately enough to be a distraction when view straight on.
When viewed at an angle you can see the display ok.