Yamaha Dm1000 Faders Replacement Repair Guide

Difficulty

Difficult

Steps

11

Time Required

                          4 hours            

Sections

1

• Faders
• 11 steps

Flags

3

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Introduction

What you need

Step 1

              Remove wood  panels (Assuming you have it)               

• Remove 5 screws:
• Three screws for the lower part
• Two screws for the upper part
• Use a #4 Phillips screwdriver.

Remove 5 screws:

Three screws for the lower part

Two screws for the upper part

Use a #4 Phillips screwdriver.

1024

Step 2

              Remove meter (if you have one)               

• Remove sub-d connector from bargraph.
• Remove 4 screws (2shorts/2 long) from metal bracket and mixing desk.

Remove sub-d connector from bargraph.

Remove 4 screws (2shorts/2 long) from metal bracket and mixing desk.

Step 3

              Remove side panels               

• Remove 15 screws:
• Remove 1 smaller screw
• remove Phillip screw #2
• Attention: these are self-tapping screws => risk of creating chips when screwing.

Remove 15 screws:

Remove 1 smaller screw

remove Phillip screw #2

Attention: these are self-tapping screws => risk of creating chips when screwing.

Step 4

              Remove fader button + front & back screws               

• remove 16 + 1 fader with fingers or a with a plastic card.
• remove 4 screws at the back.
• remove 4 screws at the front (bad pic here).

remove 16 + 1 fader with fingers or a with a plastic card.

remove 4 screws at the back.

remove 4 screws at the front (bad pic here).

Step 5

              Remove 4 cables before opening               

• remove carrefully from the side the 2 withe connectors.
• remove carrefully 2 cables from the power unit, unlock first the connector.

remove carrefully from the side the 2 withe connectors.

remove carrefully 2 cables from the power unit, unlock first the connector.

Step 6

              Opening the  console               

• open carefully the console from back to front by graping the sides.
• open connectors and remove 5 cables.
• you can now remove the upper part of the console.

open carefully the console from back to front by graping the sides.

open connectors and remove 5 cables.

you can now remove the upper part of the console.

Step 7

              Removing the circuit board               

• Cut the plastic clamps. Their are 4 clamps in the corners and 1 clamp holding flat cable in place.
• Unscrew the 10 screws with a Phillips #2 screwdriver.

Cut the plastic clamps. Their are 4 clamps in the corners and 1 clamp holding flat cable in place.

Unscrew the 10 screws with a Phillips #2 screwdriver.

Step 8

              Removing Fader  cover               

• For each fader remove the 2 blacks screws with a philips #2.

For each fader remove the 2 blacks screws with a philips #2.

Step 9

              Remove  cover + fader               

• remove solder from 4 metal bracket that are fixed to the PCB from the cover.
• remove solder with a pump from 6 pin of the fader.
• remove solder from the 2 pin of the motor of the fader.

remove solder from 4 metal bracket that are fixed to the PCB from the cover.

remove solder with a pump from 6 pin of the fader.

remove solder from the 2 pin of the motor of the fader.

Step 10

              Replace transistors               

• Replace transistors by new ones.
• 2SB1181.
• 2SD1733.
• they are hard to find as the are being obsolete.

Replace transistors by new ones.

2SB1181.

2SD1733.

they are hard to find as the are being obsolete.

Step 11

              Add more  reliability               

• An idea from web forum from a Yamaha Technician that propose to add 4X 1N4148 diode by fader to protect the transistor. as free wheel.
• add diode between base and collector as show here.

An idea from web forum from a Yamaha Technician that propose to add 4X 1N4148 diode by fader to protect the transistor. as free wheel.

add diode between base and collector as show here.

To reassemble your device follow the following instructions in reverse order.

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