Repairs & Spare Parts

Some of this repairs require advanced desoldering skills. Perform this repair at your own risk. We cannot cover damages caused by an incorrect or failed repair attempt.

Eloquencer – EME Cable

You can purchase the cables on AliExpress or Amazon.

Cable specifications: Pin to pin cable with JST XH 2.54 female connector, 4 pins on both sides. Double head, 30 cm, 4P.

Eloquencer – OLED Display

Replacing the OLED screen is a straightforward repair. You can find replacement screens on AliExpress.

OLED specifications: 1.3″, 128×64, SH1106, IIC/I2C, White
Pin order: VDD – GND – SCK – SDA

Procedure:

Remove the front panel. Video: https://www.youtube.com/watch?v=pnRUKkHoL8w
Unscrew the old screen and remove it from the socket.
Slightly trim the pins of the new OLED (trim enough so the pins are not visible once placed in the socket — but do not trim too much).
Insert the new OLED into the socket and secure it with the nut.

Eloquencer – Encoder

Replacing the encoder can be tricky; do it only if experienced. Perform this repair at your own risk. We cannot cover damages caused by an incorrect or failed repair attempt.

Encoder link: https://www.digikey.es/es/products/detail/bourns-inc/PEC11R-4120K-S0018/4699211

Procedure:

Remove the front panel. Video: https://www.youtube.com/watch?v=pnRUKkHoL8w
Cut encoder pins, desolder individually, clean pads.
Reassemble the front panel and tighten the encoder bushing before soldering.

Eloquencer – Gate Out Not Working

If only the Gate output fails, the transistor is usually the cause.

Remove the front panel. Video: https://www.youtube.com/watch?v=pnRUKkHoL8w
Replacement transistor (SMMBT3904LT1G): https://www.mouser.es/ProductDetail/ON-Semiconductor/SMMBT3904LT1G
Replace carefully; avoid overheating nearby buttons.

Eloquencer – Buttons

Button replacement is delicate; only attempt if experienced. Perform this repair at your own risk. We cannot cover damages caused by an incorrect or failed repair attempt.

Track replacement button (only red): https://www.tme.eu/es/details/ks01-bl-1/interruptores-de-teclado/highly-electric/ks01-blv-1/
Other replacement button (bi-color): https://www.tme.eu/es/details/ks01-bl-13/interruptores-de-teclado/highly-electric/ks01-blv-13/

Procedure:

Remove panel: https://www.youtube.com/watch?v=pnRUKkHoL8w&feature=emb_logo
Pull the button cap off using pliers.
Cut the button pins (be careful not to scratch the PCB!), then desolder each pin individually.
Clean the pads with a desoldering pump and prepare the board for soldering the new button. Make sure the button has the correct polarity. Also make sure the button’s shape matches the PCB silkscreen.

Eloquencer – Matrix

Replacing the LED matrix requires advanced desoldering skills. Perform this repair at your own risk. We cannot cover damages caused by an incorrect or failed repair attempt.

First check the matrix soldering pins, it should be well-soldered but just in case.
If a single LED of the matrix does not light up, the problem is in the matrix itself.
If an entire row/line of LEDs or the whole matrix does not light up, the issue is with the chip located behind the left matrix . In this case, you must desolder the left matrix and replace the HT16K33 chip.

LED matrix specifications: Red LEDs, 8×8
Matrix driver chip: HT16K33 / HT16K33A.

Procedure:

Remove the front panel. Video: https://www.youtube.com/watch?v=pnRUKkHoL8w
Desolder the pins one by one using a desoldering pump. To check if a pin is free, gently move it. If it does not move, solder remains.
Sometimes adding fresh solder and repeating the process helps.
Separate the matrices (they are glued together).
On the new LED matrix, you must trim specific pins so it fits onto the PCB.
Rotate the matrix so the side with the printed letters is on the left and you can see the pins. Cut the 3rd, 6th, 9th, and 12th pins on both sides.
Install the new matrix with the printed letters facing the right side, and glue both matrices together again, ensuring perfect alignment.
Solder the pins.