WOT Technologies TD1220RDR User manual

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TABLE OF CONTENTS
1. HANDLING STATIC SENSITIVE DEVICES.
2. TOOLS NEEDED.
3. ROLAND TD12 OVERVIEW PICTURES.
4. REMOVE BACK METAL COVER.
5. REMOVE TRIGGER INPUT PCB BOARD.
6. REMOVE MIDI IN/OUT PCB BOARD.
7. REMOVE ROLAND MAIN BOARD.
8. REMOVE POWER SUPPLY PCB BOARD.
9. REMOVE LCD SCREEN DISPLAY.
10. NEW DISPLAY OVERVIEW.
11. PEEL AND STICK BEZEL.
12. ASSEMBLY THE NEW DISPLAY.
13. OLED RIBBON CABLE.
14. ASSEMBLY POWER SUPPLY PCB BOARD.
15. ASSEMBLY MAIN BOARD PCB.
16. ASSEMBLY MIDI IN/OUT PCB BOARD.
17. ASSEMBLY TRIGGER INPUT PCB BOARD.
18. ASSEMBLY BACK METAL COVER.
19. FINAL RESULTS.

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To reduce the possibility of electrostatic discharge, observe the following precautions:
•Limit your movement. Movement can cause static electricity to build up around you.
•Handle the device carefully, holding it by its edges or frame.
•Do not touch solder joints, pins, or exposed printed circuitry.
•Do not leave the device where others can handle and possibly damage the device.
•While the device is still in its antistatic bag, touch it to an unpainted metal part of the
system unit for at least 2 seconds. (This action removes static electricity from the
package and from your body).
•Remove the device from its package and install it directly into your system, without
putting it down. If it is necessary to put the device down, place it onto its static-
protective bag. (If your device is an adapter, place it component-side up.) Do not place
the device onto the cover of the system or onto a metal table.
•Take additional care when you handle devices during cold weather. Indoor humidity
tends to decrease in cold weather, causing an increase in static electricity.
This document will outline the steps required to replace a faulty factory LCD display in a Roland
TD-12 with the new retrofit OLED display. The procedure for a TD-20 is similar, but some screws
and component layouts are slightly different. Take extreme care when performing the outlined
procedure. Note: Different size and types of screws are used throughout the unit. Inserting the
wrong length or thread type screws on reassembly could cause short circuits or physical
damage
1. STATIC SENSITIVE DEVICE

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Basic tool kit:
•Phillips Screwdriver.
•Anti-static bracelet. (Optional)
•Surgical gloves. if you do not have Anti-static bracelet.
•Electronic Contact Cleaner.
2. TOOLS

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3. ROLAND TD-12 OVERVIEW

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-Remove the 8 screws marked with red color.
4. REMOVE BACK METAL COVER

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-Remove the 10 screws that holds the trigger input pcb and midi in/out port pcb boards.
-Keep in mind that all 10 screws are not the same sizes, we recommend to separate them in a paper
sheet following the picture below.
-Remove very gently the ribbon cable from the Main board.
-IT´s not necessary to remove the GROUND SCREW.
5. TRIGGER INPUT PCB BOARD

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-Remove the ribbon cable very gently marked with red color.
-The brown and white cables are secured by a clear plastic protector so you can just pull out the
cables very gently and then rotate the PCB board to the left side of the module.
6. MIDI IN/OUT PCB BOARD

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-Remove the 6 screws marked with red color.
-Remove very gently the ribbon cables marked with colors.
7. REMOVE ROLAND MAIN BOARD

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-Removing ribbon cables from the main board.
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-Remove power supply cable and LCD ribbon cable.
-Then you can take out the main board.

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-Remove the 4 screws marked with red color.
-Now you can pull out the power supply board and put it on the left side of the module.
-NOW IT SHOULD LOOK LIKE THIS.
8. REMOVE POWER SUPPLY PCB

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-Remove the 2 screws marked with red color.
-Then you can take the LCD SCREEN DISPLAY out from the module.
9. REMOVE LCD SCREEN DISPLAY

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1Oled Display
1Bezel sticker.
1Oled to Main board Ribbon cable.
4white washers.
4black washers.
4black screws.
10. NEW DISPLAY OVERVIEW

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-Remove the thin layer that protects the Oled display.
-Now you can stick the bezel sticker included in the 1220RDR kit and put it as shown below.
11. PEEL AND STICK BEZEL

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-We only neeed 2 white washers to level the new Oled display and those washers go to only one side of
the metal mount as shown below. KEEP IN MIND that these 2 white washers are for leveling the new
Oled Display. It must be completely level or flat.
12. ASSEMBLY THE NEW DISPLAY

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And put back the screws again to hold the new display to the metal mount and it should look like this.

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-Now we need 2 more white washers and place them as shown below, We Must need these washers to
avoid the oled display touches the metal bezel of the module.

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