How to convert Dapol Class 142 142085 (ND116D) to DCC Sound

This guide covers the following models:

• Dapol Class 142 142065 in Northern Rail livery (ND116A)
• Dapol Class 142 142081 in Regional Railways livery (ND116B)
• Dapol Class 142 142025 in Northern Spirit livery (ND116C)
• Dapol Class 142 142085 in Arriva Trains Wales livery (ND116D)
• Dapol Class 142 142021 in Tyne & Wear yellow livery (ND116E)
• Dapol Class 142 142096 in Northern Rail livery (2D-142-001)
• Dapol Class 142 142042 in Merseyrail livery (2D-142-002)
• Dapol Class 142 142022 in Regional Railways livery (2D-142-003)
• Dapol Class 142 142001 in GMPTE Orange & Brown livery (2D-142-004)
• Dapol Class 142 142053 in provincial turquoise & blue livery (2D-142-005)

The speaker and sound decoder are installed in the dummy car. For the optimal experience, we recommend also installing a decoder in the motorized car that is syncronized with the sound decoder.

Step 1 - Remove body

Remove the body by turning the unit upside down and unclipping the front where the plastic tapers inwards.

Step 2 - Modify Decoder PCB

Undo the two screws holding the decoder PCB in place. Turn the PCB upside down and solder two brown wires to the solder pads marked 'Speaker +' (S+) and 'Speaker -' (S-).

Step 3 - Fit Speaker

Fit the speaker into the centre void where the motor would ordinarily be. Secure it using glue or black tack, then solder the brown wires to the speaker terminals.

Step 4 - Fit Decoder

Fit your sound decoder, replace the body and the conversion is complete.