Polaroid M402B User manual

Brand: Polaroid

Model: M402B

Type: User manual

Polaroid M402B is a high-quality, professional 4-lens camera for document photography. It's easy to use, with features like a tripod mount for stability, a hot shoe for an accessory electronic flash, and an aperture knob for adjusting camera exposure. The viewfinder helps you frame your subject, and the shutter cocking lever latches the mechanical components of the shutter into the proper position for taking a picture. The shutter speed is fixed at 1/200th of a second, and the aperture can be adjusted from f8 to f32.

M402b

MiniPortrait Camera

April 2000

Technical Publications

TEL: 1.781.386.5309

Repair Manual

402b MiniPortrait Camera Repair Manual Table of Contents

Table of Contents

1. Overview ................................................................................................................ 4

Description ......................................................................................................... 4

Features .............................................................................................................. 4

Specifications ..................................................................................................... 8

2. Parts Replacement................................................................................................ 9

Required Tools and Equipment ........................................................................ 9

Front Cover Assembly ....................................................................................... 9

Removal............................................................................................................. 9

Installation .......................................................................................................... 10

Shutter Assembly ............................................................................................... 12

Removal ............................................................................................................. 12

Installation .......................................................................................................... 12

Camera Back Assembly..................................................................................... 14

Removal............................................................................................................. 14

Installation .......................................................................................................... 14

Camera Back Interface Plate ............................................................................. 15

Removal............................................................................................................. 15

Installation .......................................................................................................... 15

Viewfinder Assembly ......................................................................................... 16

Removal ............................................................................................................. 16

Installation .......................................................................................................... 17

X-Sync Connector Plate/X-Sync Switch........................................................... 18

Removal............................................................................................................. 18

Installation .......................................................................................................... 19

Shutter Cocking Lever....................................................................................... 20

Removal............................................................................................................. 20

Installation .......................................................................................................... 21

Shutter Actuator ................................................................................................. 22

Removal ............................................................................................................. 22

Installation .......................................................................................................... 23

402b MiniPortrait Camera Repair Manual Table of Contents

Shutter and Diaphragm Plates............................................................................. 24

Removal ............................................................................................................... 24

Installation ............................................................................................................. 26

3. Calibration ............................................................................................................. 28

F8 Adjustment ....................................................................................................... 28

4. Parts Catalog......................................................................................................... 30

M402b MiniPortrait Camera (Parts List 1) ......................................................... 32

Front Cover Assembly (Parts List 2) ................................................................. 34

Shutter plate Assembly (Parts List 3)................................................................ 36

Camera Body Assembly (Parts List 4) .............................................................. 38

Viewfinder Assembly (Parts List 5) ................................................................... 40

Camera Back Assembly (Parts List 6) .............................................................. 42

List of Illustrations

Figure Page

1-1 M402b MiniPortrait camera ............................................................................. 4

1-2 Camera features.............................................................................................. 5

2-1 Removing front cover assembly ....................................................................... 10

2-2 Removing shutter plate assembly ..................................................................... 12

2-3 Removing camera back ................................................................................... 14

2-4 Removing camera back interface plate ............................................................ 15

2-5 Removing viewfinder assembly........................................................................ 16

2-6 Removing x-sync connector /x-sync switch........................................................ 18

2-7 Replacing shutter cocking lever ........................................................................ 20

2-8 Replacing shutter actuator ............................................................................... 22

2-9 Removing shutter and diaphragm plates .......................................................... 24

2-10 Replacing and aligning shutter and diaphragm plates ...................................... 26

2-11 Connecting front cover x-sync wires to shutter x-sync pins................................ 27

3-1 F8 aperture setting .......................................................................................... 29

List of Tables

Table Page

1-1 Camera features.............................................................................................. 4

M402b MiniPortrait Camera Repair Manual Overview

1. Overview

Description

This section of the Repair Manual gives an overview of the M402b MiniPortrait Camera . It

provides the necessary information pertaining to features and specifications for the camera.

Note: For detailed information pertaining to setting up and using the camera, refer

to the User Guide.

The M402b MiniPortrait Camera (Figure 1-1) is a high quality, professional 4-lens camera for

document photography.

Figure 1-1. M402b MiniPortrait camera

Features

Table 1-1 lists and describes the camera's features (Figure 1-2).

Table 1-1. Camera features

Features Description

Tripod Mount Built into the base of the camera allowing standard

tripod adapters to be attached to it.

M402b MiniPortrait Camera Repair Manual Overview

Figure 1-2. Camera features

Table 1-1. Camera features (cont'd)

Features Description

Shutter Button Manually trips the shutter.

The shutter button doubles as a connector for

the shutter cable release.

Pressing the shutter button (or the cable release)

initiates the movement of the shutter blades as the

photograph is taken.

Shutter Release Cable Screws into the shutter allowing it to be tripped from

the hand grip.

Hot Shoe

Shutter Button

Shutter

Release Cable

Aperture Knob

Shutter

Cocking Lever

Not shown

Viewfinder

Camera Back

Interface Plate

Tripod Mount

(Not Shown)

Lens

X-sync

Connector

M402b MiniPortrait Camera Repair Manual Overview

Table 1-1. Camera features (cont'd)

Features Description

Lens (4) Four 136 mm glass lenses allowing for four (4)

identical pictures on one piece of film.

Shutter Cocking Lever Used to latch the mechanical components of the

shutter into the proper position for taking a picture.

The shutter speed is fixed at 1/200th second.

Aperture Knob Adjusts camera exposure from f8 to f32.

Hot Shoe Illumination for the camera is supplied by an

accessory electronic flash.

The hot shoe which is located on top of the camera

provides the connection for the accessory electronic

flash.

X-sync Connector The X-sync connector, which is located on the front

cover of the camera, connects the accessory

electronic flash to the camera.

Upon tripping the shutter, the internal X-sync

connector switch , which is triggered by the action of

the mechanical shutter being tripped, fires the

accessory electronic flash.

Camera Back The camera uses Polaroid 3 1/4 x 4 1/4 peel-apart

pack films to produce color or black and white photos.

An adapted CB-103 camera back comes with the

camera. It comes with a dark slide so that camera

backs can be changed without fogging the film.

M402b MiniPortrait Camera Repair Manual Overview

Table 1-1. Camera features (cont'd)

Features Description

Viewfinder Used to frame the subject.

Place the subject the appropriate distance from the

shutter and then look through the viewfinder to frame

the subject.

Once the subject is framed, press the shutter button or

the shutter release cable.

Camera Back Interface Plate Allows for Interchangeable camera backs.

M402b MiniPortrait Camera Repair Manual Overview

Specifications

Lenses Four 136 mm (2-element) glass lenses.

Focus Optimal at 1.2 m.

Aperture f8 to f32 continuous.

Aperture Setting Turn knob to indicator.

Shutter Speed 1/200th second.

Shutter Activation Shutter button on camera or hand grip cable release.

Strobe Hot shoe accepts MP485 flash (PID 624066) or any

compatible electronic flash.

X-sync Allows for the use of professional electronic strobes.

Camera Back 3 1/4 x 4 1/4 pack film back (PID 624066).

Timer Digital LCD.

Lens Caps Four (4) provided.

Handgrip Integral side mounted.

Tripod Mount Universal

Weight 1.65 kg

Size (W x H x D) 15.25 cm x 21.5 cm x 17.75 cm

Film All Polaroid 3 1/4 x 4 1/4 color pack films, including Polaroid

Studio 125, Studio Polaroid, T669, and PC100.

All Polaroid 3 1/4 x 4 1/4 B&W films including T664 and T667.

M402b MiniPortrait Camera Repair Manual Disassembly/Assembly

2. Disassembly/Assembly

This section of the Repair Manual describes the camera's disassembly procedures.

CAUTION

Care should be taken throughout all disassembly and reassembly procedures

never to smudge or soil the lenses.

Required Tools and Equipment

• Lens cleaning tissue

• Dust and static free wiping cloth

• Cotton gloves or finger cots

• Standard tool kit

• Solder sucker

• Tweezers

• Hot glue gun and glue

Front Cover Assembly (Figure 2-1)

Removal

1. Remove the four (4) lens caps from the front cover lenses.

2. Pull out the aperture knob from the aperture drive gear.

3. Using a pair of tweezers, peel off the upper decal cover and lower decal cover.

4. Using a Phillips head screw driver, remove the six (6) screws that secure the front cover

and the shutter plate assembly to the camera body.

CAUTION

When installing the front cover make sure:

• the four (4) fine thread screws are used to secure the top of the front

cover and the shutter plate assembly to the camera body.

• the two (2) coarse thread screws are used to secure the bottom of the

front cover and the shutter plate assembly to the camera body.

M402b MiniPortrait Camera Repair Manual Disassembly/Assembly

5. Gently lift off the front cover being careful not to disturb the alignment of the shutter plates.

Note: If the shutter and the diaphragm plates are misaligned during the removal

of the front cover, refer to the Shutter and Diaphragm Plate

assembly/disassembly procedure to properly realign (see page 24).

6. Disconnect the black and red X-sync connections from the shutter plate connector pins.

Figure 2-1. Removing front cover assembly

Installation

1. Connect the black and red X-sync connections from the front cover to the shutter plate

connector pins.

Note: Make sure the red and black X-sync wires are properly dressed so that they

do not interfere with the operation of the shutter.

2. Gently position the front cover onto the shutter plate being careful not to disturb the

alignment of the shutter plates.

Note: If the shutter and the diaphragm plates are misaligned during the installation

of the front cover, refer to the Shutter and Diaphragm Plate

assembly/disassembly procedure to properly realign (see page 24).

Rear View of Front Cover

Lens Cap

Aperture Knob

Front Cover

Assembly

Camera

Body

Lower Decal

Cover

Upper Decal

Cover

Shutter Plate

Assembly

CAUTION

When installing the front cover make sure:

• the four (4) fine thread screws are used to

secure the top of the front cover/shutter

plate assembly to the camera body.

• the two (2) coarse thread screws are used to

secure the bottom of the front cover/shutter

plate assembly to the camera body.

M402b MiniPortrait Camera Repair Manual Disassembly/Assembly

3. Using a Phillips head screw driver, install and tighten the six (6) screws that secure the

front cover and the shutter plate assembly to the camera body.

CAUTION

When installing the front cover make sure:

• the four (4) fine thread screws are used to secure the top of the front

cover and the shutter plate assembly to the camera body.

• the two (2) coarse thread screws are used to secure the bottom of the

front cover and the shutter plate assembly to the camera body.

4. Install a new upper decal cover and lower decal cover making sure that they are properly

positioned on the front cover.

5. Install the aperture knob to the aperture drive gear.

Note: If necessary, recalibrate the camera as explained in Section 3 of

this Repair Manual.

6. Install the four (4) lens caps to the front cover lenses.

M402b MiniPortrait Camera Repair Manual Disassembly/Assembly

Shutter Plate Assembly (Figure 2-2)

Removal

1. Remove the front cover assembly (Figure 2-1).

2. Gently lift off the shutter plate assembly being careful not to disturb the alignment of the

shutter plates.

Note: If the shutter and the diaphragm plates are misaligned during the removal

of the shutter plate assembly, refer to the Shutter and Diaphragm Plate

assembly/disassembly procedure to properly realign (see page 24).

3. Disconnect the black and red X-sync connections from the shutter plate connector pins.

Figure 2-2. Removing shutter plate assembly

Installation

1. Connect the black and red X-sync connections from the camera body to the shutter plate

connector pins.

Note: Make sure the red and black X-sync wires are properly dressed so that they

do not interfere with the operation of the shutter.

Lens Cap

Aperture Knob

Front Cover

Assembly

Camera

Body

Lower Decal

Cover

Upper Decal

Cover

Shutter Plate

Assembly

Shutter Plate Assembly

M402b MiniPortrait Camera Repair Manual Disassembly/Assembly

2. Gently position the shutter plate assembly onto the camera body being careful not to

disturb the alignment of the shutter plates.

Note: If the shutter and the diaphragm plates are misaligned during the installation

of the shutter plate assembly, refer to the Shutter and Diaphragm Plate

assembly/disassembly procedure to properly realign (see page 24).

3. Install the front cover assembly (Figure 2-1).

M402b MiniPortrait Camera Repair Manual Disassembly/Assembly

Camera Back Assembly (Figure 2-3)

Removal

1. Unlatch the camera back latches.

2. Lift off the camera back assembly.

Figure 2-3. Removing camera back

Installation

1. Place the camera back assembly onto the camera back interface plate making sure

that it is properly aligned.

2. Latch the camera back latches.

Camera

Back

Camera

Body

Camera Back

Latch

M402b MiniPortrait Camera Repair Manual Disassembly/Assembly

Camera Back Interface Plate (Figure 2-4)

Removal

1. Remove the camera back (Figure 2-3).

2. Using a Phillips head screw driver, remove the twelve (12) flat head screws that secure

the camera back interface plate to the camera body.

3. Lift off the camera back interface plate from the camera body.

Figure 2-4. Removing camera back interface plate

Installation

1. Position the camera back interface plate onto the camera body.

2. Using a Phillips head screw driver, install and tighten the twelve (12) flat head screws that

secure the camera back interface plate to the camera body.

3. Install the camera back (Figure 2-3).

Camera

Back

Camera

Body

Camera Back

Latch

Camera Back

Interface Plate

M402b MiniPortrait Camera Repair Manual Disassembly/Assembly

Viewfinder Assembly (Figure 2-5)

Removal

1. Unscrew the cable release from the shutter button.

2. Remove the front viewfinder bezel.

3. Remove the rubber eyepiece.

4. Using a Phillips head screw driver, remove the two (2) screws that secure the rear of the

outside viewfinder hand grip to the rear of the inside viewfinder hand grip.

5. Using a Phillips head screw driver, remove the screw that secures the center of the outside

viewfinder hand grip to the center of the inside viewfinder hand grip.

6. Lift off the outside viewfinder hand grip.

7. Unscrew the tripod adapter screw from the hand grip base.

8. Using a Phillips head screw driver, remove the three (3) screws that secure the hand grip

base cover to the hand grip base.

Cable

Release

Outside

Hand Grip

Inside

Hand Grip

Camera

Body

Camera

Hand Grip

Base

Hand Grip

Base Cover

Tripod

Adapter Screw

Bezel

Glass

Rubber

Eyepiece

Figure 2-5. Removing viewfinder assembly

M402b MiniPortrait Camera Repair Manual Disassembly/Assembly

9. Using a Phillips head screw driver, remove the two (2) screws that secure the bottom of

the inside viewfinder hand grip to the hand grip base.

10. Using a Phillips head screw driver, remove the two (2) screws that secure the inside

viewfinder hand grip to the side of the camera body.

Installation

1. Using a Phillips head screw driver, install and tighten the two (2) screws that secure

the inside viewfinder hand grip to the side of the camera body.

2. Using a Phillips head screw driver, install and tighten the two (2) screws that secure the

bottom of the inside viewfinder hand grip to the hand grip base.

3. Using a Phillips head screw driver, install and tighten the three (3) screws that secure the

hand grip base cover to the hand grip base.

4. Screw the tripod adapter screw into the hand grip base.

5. Install the outside viewfinder hand grip.

6. Using a Phillips head screw driver, install and tighten the screw that secures the center of

the outside viewfinder hand grip to the center of the inside viewfinder hand grip.

7. Using a Phillips head screw driver, install and tighten the two (2) screws that secure the

rear of the outside viewfinder hand grip to the rear of the inside viewfinder hand grip.

8. Install the rubber eyepiece.

9. Install the front viewfinder bezel.

10. Attach the cable release to the shutter button.

M402b MiniPortrait Camera Repair Manual Disassembly/Assembly

X-Sync Connector/X-Sync Switch (Figure 2-6)

Removal

1. Remove the front cover assembly (Figure 2-1).

2. To remove the X-sync connector:

• Using a soldering iron and a solder sucker, remove the wires from the X-sync

connector.

• Using a Phillips head screw driver, remove the two (2) screws that secure the

X-sync connector to the front cover. Lift off the X-sync connector.

3. To remove the X-sync switch:

• Using a soldering iron and a solder sucker, remove the orange and black wires from

the X-sync switch.

• Using a Phillips head screw driver, remove the two (2) screws that secure the X-sync

switch to the front cover. Lift off the X-sync switch.

Figure 2-6. Replacing x-sync connector/x-sync switch

Rear View of Front Cover

X-Sync Connector

X-Sync Switch

Orange

Wire

Black Wires

Red Wire

Front Cover

M402b MiniPortrait Camera Repair Manual Disassembly/Assembly

Installation

1. To replace the X-sync connector:

• Insert the X-sync connector into its locating hole on the back of the front cover.

• Using a Phillips head screw driver, install and tighten the two (2) screws that secure

the X-sync connector to the front cover.

• Using a soldering iron, connect the wires to the X-sync connector pins being careful not

to apply too much heat to the X-sync connector pin.

CAUTION

Overheating the X-sync pin could damage the insulator that

surrounds the X-sync pin causing it to short out to the connector

plate.

2. To replace the X-sync switch:

• Insert the X-sync switch into its locating hole on the back of the front cover.

• Using a Phillips head screw driver, install and tighten the two (2) screws that secure

the X-sync switch to the front cover.

• Using a soldering iron, connect the orange and black wires to the X-sync switch.

3. If applicable, dress the wires as shown in Figure 2-6.

Note: Apply a dab of hot glue to the plastic slots to secure the wires to the front

cover so that they will not interfere with the operation of the shutter plates.

4. Install the front cover assembly (Figure 2-1).

M402b MiniPortrait Camera Repair Manual Disassembly/Assembly

Shutter Cocking Lever (Figure 2-7)

Removal

1. Remove the front cover assembly (Figure 2-1).

2. Using a pair of small needle nose pliers, gently remove the clip and washer that

secure the return spring to the plastic post at the lower end of the shutter cocking

lever.

If necessary, use an Xacto knife to cut away the top of the plastic post so that

the clip and washer can be removed easily.

Note: While removing the shutter cocking lever be careful not to misalign

the shutter and the diaphragm plates.

If the shutter and the diaphragm plates are misaligned during the

removal of the shutter cocking lever, refer to the Shutter and

Diaphragm Plate assembly/disassembly procedure to properly

realign (see page 24).

3. Remove the shutter cocking lever from the left shutter cocking guide being careful not to

misalign the shutter and the diaphragm plates.

Figure 2-7. Replacing shutter cocking lever

Shutter Plate

Assembly

Shutter

Cocking Lever

Plastic Post

Camera Body

Left Shutter

Cocking Guide

Square

Cocking Slot

Right Shutter

Cocking Guide

Aperture

Drive Gear

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Polaroid M402B User manual

Polaroid M402B User manual

Polaroid M402B User manual

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