Sony M 430 Microcassette Corder Mechanism Deck Replacement Repair Guide

Difficulty

Difficult

Steps

Time Required

                          20 - 40 minutes

Sections

Cassette Lid
3 steps
Battery
2 steps
Back Cover
4 steps
Motherboard
8 steps
Mechanism Deck
2 steps

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Introduction

What you need

Step 1

              Cassette Lid

Using a spudger, apply pressure towards the back corner of the cassette compartment to the plastic tab directly behind the gold cone.
Pushing the tab allows the hinge to be separated from the body of the device.
The third picture shows the what the tab looks like when the device is disassembled, and illustrates the direction to apply pressure.

Using a spudger, apply pressure towards the back corner of the cassette compartment to the plastic tab directly behind the gold cone.

Pushing the tab allows the hinge to be separated from the body of the device.

The third picture shows the what the tab looks like when the device is disassembled, and illustrates the direction to apply pressure.

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Step 2

Next, use a plastic opening tool to pull the metal latch towards the speaker.
The latch should be clear of the slot in the cassette lid.
Be careful not to bend the latch too far, as it may warp.

Next, use a plastic opening tool to pull the metal latch towards the speaker.

The latch should be clear of the slot in the cassette lid.

Be careful not to bend the latch too far, as it may warp.

Step 3

Carefully lift the cassette lid, making sure the tab and latch are free from connection.

Carefully lift the cassette lid, making sure the tab and latch are free from connection.

Step 4

              Battery

Find the arrow on the battery cover on the back of the device.
While pressing down on the arrow, slide the cover towards the bottom of the recorder until it clicks.

Find the arrow on the battery cover on the back of the device.

While pressing down on the arrow, slide the cover towards the bottom of the recorder until it clicks.

Step 5

Lift the cover and remove the batteries.

Lift the cover and remove the batteries.

Step 6

              Back Cover

Remove the battery cover by first tilting it so it is at a right angle with the rest of the device.
Next, twist it to the side as shown in the second picture. The lid should simply snap off.
Be careful not to apply too much force, as the lid may break.

Remove the battery cover by first tilting it so it is at a right angle with the rest of the device.

Next, twist it to the side as shown in the second picture. The lid should simply snap off.

Be careful not to apply too much force, as the lid may break.

Step 7

Use a #00 Phillips head screwdriver to remove the four (1.7x16 mm) screws from the back case.
Next, use the same screwdriver to unscrew the (1.7X5 mm) screw, which is located inside the battery compartment.

Use a #00 Phillips head screwdriver to remove the four (1.7x16 mm) screws from the back case.

Next, use the same screwdriver to unscrew the (1.7X5 mm) screw, which is located inside the battery compartment.

Step 8

Use a spudger to push in the two tabs located on the bottom of the device.
It works best to push the tabs at an upward angle (towards the top of the battery compartment)
It may take a decent amount of force in order to push in the tabs.

Use a spudger to push in the two tabs located on the bottom of the device.

It works best to push the tabs at an upward angle (towards the top of the battery compartment)

It may take a decent amount of force in order to push in the tabs.

Step 9

With a firm grip on the larger half, remove the back cover by lifting first on the battery area.
The back cover should lift cleanly off.

With a firm grip on the larger half, remove the back cover by lifting first on the battery area.

The back cover should lift cleanly off.

Step 10

              Motherboard

Using tweezers, pull upward on the black tape which secures the wires.
Removing this tape allows you to move the wires out of the way for the next step.

Using tweezers, pull upward on the black tape which secures the wires.

Removing this tape allows you to move the wires out of the way for the next step.

Step 11

Desolder all wires connecting components to the motherboard.
Be careful to not melt the solder points together.
A red wire and a blue wire connect the motor to the motherboard.
Two black wires connect the speaker to the motherboard.
A red wire and a black wire connect the microphone to the motherboard.

Desolder all wires connecting components to the motherboard.

Be careful to not melt the solder points together.

A red wire and a blue wire connect the motor to the motherboard.

Two black wires connect the speaker to the motherboard.

A red wire and a black wire connect the microphone to the motherboard.

Step 12

After desoldering the microphone connections, pull the microphone straight out from the device and set aside.
Be careful not to tear the wires off of the microphone.
Removing the microphone gives you access to the green ribbon cable that connects to the mechanism deck.

After desoldering the microphone connections, pull the microphone straight out from the device and set aside.

Be careful not to tear the wires off of the microphone.

Removing the microphone gives you access to the green ribbon cable that connects to the mechanism deck.

Step 13

Desolder the 4 connections of the green ribbon cable.
Pull upward on the green ribbon cable to separate it from the motherboard.
Be careful when pulling up the film as it may tear.

Desolder the 4 connections of the green ribbon cable.

Pull upward on the green ribbon cable to separate it from the motherboard.

Be careful when pulling up the film as it may tear.

Step 14

Using a #00 Phillips screwdriver, remove the two 1.4x3 mm screws securing the motherboard.

Using a #00 Phillips screwdriver, remove the two 1.4x3 mm screws securing the motherboard.

Step 15

If the replacement motherboard does not have the wire battery terminals attached, desolder the two battery connections on the motherboard.
Leave the wire battery terminals in place.
If the replacement motherboard has battery terminals attached, the connections do not need to be desoldered.

If the replacement motherboard does not have the wire battery terminals attached, desolder the two battery connections on the motherboard.

Leave the wire battery terminals in place.

If the replacement motherboard has battery terminals attached, the connections do not need to be desoldered.

Step 16

To remove the battery terminals, use a prying tool to push the lip of the metal wire towards the motherboard.
Lift up on the wire while the small lip is depressed and slide the wire terminals out of the plastic guides.
Be careful not to bend the wire terminals.

To remove the battery terminals, use a prying tool to push the lip of the metal wire towards the motherboard.

Lift up on the wire while the small lip is depressed and slide the wire terminals out of the plastic guides.

Be careful not to bend the wire terminals.

Step 17

Verify all of the connections have been desoldered and the screws removed.
Lift the motherboard upward to remove it from the microcassette-corder.

Verify all of the connections have been desoldered and the screws removed.

Lift the motherboard upward to remove it from the microcassette-corder.

Step 18

              Mechanism Deck

First, remove the buttons from the mechanism deck so that you can remove it from the case.
Find the tabs on each button.
Push the tab with a spudger away from the metal connection.
Pull button away from the mechanism deck to remove it.

First, remove the buttons from the mechanism deck so that you can remove it from the case.

Find the tabs on each button.

Push the tab with a spudger away from the metal connection.

Pull button away from the mechanism deck to remove it.

Step 19

Remove the mechanism deck by lifting the tab as shown.

Remove the mechanism deck by lifting the tab as shown.

To reassemble your device, follow these instructions in reverse order.

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Author

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                    Stephen

Member since: 01/21/2012

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Team

                       Cal Poly, Team 10-34, Amido Winter 2012                        

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                                            7 Guides authored

Char.jp - Jun 10, 2017

I have to replace the capstan wheel of the driving mechanism. where do I get the above part? its Part NO. and app cost please. Thank you

I have cassettes, but recorder is not functioning for want of the capstan wheel of driving mechanism. Can you please help me with information

Hermann Hugo Holbut Arroyo - Nov 17, 2019

I would greatly appreciate receiving some info regarding where to get parts or a full mechanism deck replacement for Sony M-607V microcassette recorder. Also if it is possible to get a Service Manual with exploded views.

Thanks in advance for any help.

Hermann

Introduction#

What you need#

Team#

Introduction

What you need

Team