Discontinued Model

4400 Series

Overhead Projector

No technical support No replacement parts
Illustrated Parts Breakdown

For: 4420

3M Visual Systems Division 6801 River Place Boulevard Austin, Texas 78726-9000
Printed in U.S.A. E 3M 5/95 78-6970-5570-1
4400 Series Overhead Projectors

IPB Table of Contents

7-1 7-1 7-1 7-1 7-3 7-4 7-6 7-8 7-10 7-12 7-14 7-16 7-18 7-20 23
Introduction. Part Numbers. Locating and Identifying a Part. Machine Identification Plate. Section 0 OVERVIEW. Section 1 OPEN SINGLET HEAD ASSEMBLY. Section 2 CLOSED SINGLET HEAD ASSEMBLY. Section 3 CLAMSHELL HEAD ASSEMBLY. Section 4 ARM AND FOCUS ASSEMBLY. Section 5 TOP COVER ASSEMBLY. Section 6 BASE ASSEMBLY. Section 7 FRONT COVER ASSEMBLY. Section 8 LAMP HOUSING. Section 9 WIRE JUMPERS. Appendix A SPECIFICATIONS.

E 3M 1995

Introduction
This Illustrated Parts Breakdown (IPB) contains the information necessary to locate and identify specific parts of the 4400 Series Overhead Projectors.
When ordering parts, include part identification number, description, quantity and the following information: 1. Product Name: The specific version number of the projector. 2. Model Number/Alpha Code: The series number of the projector followed by a three or four character alpha code identifier. The Alpha Code indicates the design level, specific product characteristics, power cord or distribution specific to a country. 3. MFG Code: The date the projector was manufactured. See example below:
MFG Code Letter L M A C D Digit Jan Mar Apr Jun Jul Sep Oct Dec Jan Mar

Part Numbers

All components available on a replacement basis are listed with their 3M identification number. The parts identification list opposite each illustration provides the description adequate to identify components.
Locating and Identifying a Part
If physical appearance and general location of an item are known: 6. Use the Overview illustration to determine which section includes the item. 7. Refer to the section and locate the item on the exploded view illustration. The part identification numbers provided in this manual are from the most current data available. Make sure part identification numbers for your component have not been amended by changes and updates made to your 4400 Series Overhead Projector.
4. Lamp: The electrical rating of the lamp. 5. S/N: The serial number assigned to this projector. For part orders contact: Dealers: 3M Subsidiaries: Retail Customers: FAX: Telephone: Refer to Dealers Guide Contact Export Operations 1-800-852-3917 1-800-328-2883
Machine Identification Plate
The Machine Identification Plate is located on the bottom side of each projector and lists specific information that is needed when calling for technical assistance or ordering parts.
Figure 7-2. Machine Identification Plate
This page intentionally left blank.
Table of Contents Section No. 8 9.... Title
Overview. 3 Open Singlet Head Assembly. 4 Closed Singlet Head Assembly. 6 Clamshell Head Assembly. 8 Arm and Focus Assembly. 10 Top Cover Assembly. 12 Base Assembly. 14 Front Cover Assembly. 16 Lamp Housing Assembly. 18 Wire Jumpers. 20
Appendix A. Specifications. 23

IMPORTANT NOTICE

3M reserves the right to sell or furnish NEW OR RECONDITIONED PARTS. New and reconditioned parts are covered by the same 3M new parts limited warranty.

Section 0 OVERVIEW

Closed Singlet Head Assembly (See Section 2)
Open Singlet Head Assembly (See Section 1)
Arm and Focus Assembly (See Section 4)
Top Cover Assembly (See Section 5)
Base Assembly (See Section 6) Front Cover Assembly (See Section 7) Base Assembly (See Section 6)
Clamshell Head Assembly (See Section 3) Top Cover Assembly (See Section 5) Arm and Focus Assembly (See Section 4)
Front Cover Assembly (See Section 7)
Base Assembly (See Section 6)
Section 1 OPEN SINGLET HEAD ASSEMBLY
Section 1 OPEN SINGLET HEAD ASSEMBLY Item No.
0. 1. 2. 3. 4. 5. 6. 7. 8. 9. 10.

Part Number

78-8079-9151-4. 78-8014-8951-5. 78-8064-1646-3. 78-8096-5798-0. 78-8064-1605-9. 78-8003-9762-8. 78-8079-8802-3. 26-1008-5592-8. 26-1005-9570-5. 26-1004-0460-2. 78-8079-8803-1.

Description

HEAD ASSEMBLY, Open Singlet (Complete). LENS, Wide Angle (293mm). TUBING, Lens. MIRROR ASSEMBLY, Open Singlet, Mirror. SPRING, Mirror Damping. NUT, U-Type, 8-32. COVER, Head, Singlet. SCREW, Taptite, M3.5 x 8. SCREW, Mach. 8-32 x 7/16. WASHER, Plain Nylon. BRACKET, Lens, Singlet.
Section 2 CLOSED SINGLET HEAD ASSEMBLY
Section 2 CLOSED SINGLET HEAD ASSEMBLY Item No.
0. 1A. 1B. 2. 3. 4. 5. 6. 7. 8. 9A. 9B. 10. 11. 12. 13.
78-8079-9152-2. HEAD ASSEMBLY, Closed Singlet (Complete). 78-8096-5751-9. COVER, Head, Closed Singlet. 78-8096-5812-9. COVER, Head, Closed Singlet (Xerox). 78-8096-5767-5. ACCESS CAP, Closed Single. 26-1009-9888-4. WASHER, Spring. 78-8096-5757-6. SCREW, Shoulder Head, Closed Singlet. 78-8096-5797-2. MIRROR ASSEMBLY, Closed Singlet. 26-1009-9749-8. SCREW, Taptite, Sems, M4 X 10. 78-8096-5752-7. BRACKET, Head, Closed Singlet. 78-8064-1646-3. TUBING, Lens. 78-8014-8951-5. LENS, Wide Angle (293 mm). 78-8096-5792-3. LENS, Long Throw (355mm). 78-8096-5754-3. RETAINER, Glass, Head, Closed Singlet. 78-8096-5753-5. GLASS, Closed Singlet Head,. 26-1002-5268-8. SCREW, Machine, 6-32x3/8. 26-1001-7983-2. NUT, Keps, 6-32.

Section 3 CLAMSHELL HEAD ASSEMBLY

6 4A 9

Singlet Lens

C 3M 2001

Section 3 CLAMSHELL HEAD ASSEMBLY Item No.
1. 2. 3. 4A. 4B. 5. 6A. 6B. 7A. 7B. 7C. 8. 9. Note:
1. Used on: Mfg. Code A3 and earlier. 2. Used on: Mfg. Code A3 and up.
DY-0210-2719-7. 78-8096-5799-8. 78-8096-5790-7. 78-8014-8951-5. 78-8064-1833-7. 78-8096-5761-8. 78-8096-5757-6. 26-1007-5427-9. 77-8001-3672-1. 26-1003-3672-1. 78-8096-5802-0. 26-1009-9749-8. 78-8064-1646-3.
CLAMSHELL HEAD ASSEMBLY KIT. MIRROR ASSEMBLY, Clamshell Head (Triplet only). RING, Adapter, Triplet Lens. LENS, Singlet (293mm). LENS, Triplet (340mm). BRACKET, Head. SCREW, Shoulder Head (See Note 1). SCREW, Plastite, 6-19 X 3/8 (See Note 2). WASHER, Spring (See Note 1). WASHER, Nylon (See Note 1). BUSHING, Flange (See Note 2). SCREW, Taptite, Sems, M4 X 10. TUBING, Lens.
Section 4 ARM AND FOCUS ASSEMBLY
Section 4 ARM AND FOCUS ASSEMBLY Item No.
1. 2. 3. 4. 5. 6. 7. 8. 9A. 9B. 10. 11. 12. 13. 14. 15.
78-8096-5758-4. 26-1002-6172-1. 78-8064-1555-6. 78-8064-1552-3. 78-8064-1522-6. 26-1002-4971-8. 78-8064-1556-4. 78-8096-5744-4. 78-8096-5743-6. 78-8096-5788-1. 78-8064-1506-9. 78-8064-1601-8. 78-8079-8811-4. 26-1009-9690-4. 78-8096-5787-3. 78-8096-5804-6.
BRACKET, Head. SCREW, Plastite, M4.7 X 10. GUIDE, Gear Rack. GEAR RACK, Focus. GEAR, Focus. SCREW, Plastite, 6-19 X 1/2. SLIDE, Focus. ARM, Detachable. POST (See Note 1). POST, Extended (See Note 2). COVER, Focus. KNOB, Focus. BOLT, Post. SCREW, Crimptite, 10-24 X 1/2. BRACKET, Stiffening Arm. WRENCH.
1. Used on: all versions except as noted. 2. Used on: 4406 AJE, AJEX, 4415, 4420 ABCJ, AHCA, AHCC, AHCN, AHCR, AHCS, AHCU and AHCZ.
Section 5 TOP COVER ASSEMBLY
Section 5 TOP COVER ASSEMBLY Item No.
1. 2. 3A. 3B. 3C. 4. 5. 6. 7A. 7B. 8. 9. 10. 11. 12. 13. 14. 15. Note:

1. Used on:

78-8064-1473-2. 78-8096-5750-1. 78-8096-5701-4. 78-8096-5729-5. 78-8096-5824-4. 78-8003-8593-8. 78-8096-5731-1. 26-1001-7983-2. 78-8096-5791-5. 78-8097-3637-0. 78-8064-1531-7. 26-1002-6172-1. 26-1002-4971-8. 78-8096-5717-0. 78-8096-5786-5. 78-8096-5822-8. 78-8096-5814-5. 78-8096-5809-5.

GLASS, Stage. SCREW, Cover. COVER, Top (10.5 X 10.5). COVER, Top (A4) (Used on all A4 version except as noted below.). COVER, Top (A4 Reworked) (See Note 1). RING, Retaining, Rotor Clip. WASHER, Plastic. NUT, Keps, 6-32. FRESNEL (Used on all versions except 4420). FRESNEL (Used on 4420 only). RETAINER, Stage Glass. SCREW, Plastite, M4.7 X 10. SCREW, Plastite, 6-19 X 1/2. SPRING, Cover Detent. CLIP, Fresnel. FRESNEL, Retainer, Back. FRESNEL, Retainer, Front. LABEL, Lampchanger.
4405 AAAB, ABAJ, AHAA, AHAC, AHAN, AHAR, AHAS, AHAU, and AHAZ 4408 AADB and ABDJ
Section 6 BASE ASSEMBLY 2 15
Section 6 BASE ASSEMBLY Item No.
1. 2. 3. 4. 5. 6. 7. 8. 9. 10. 11A. 11B. 11C. 11D. 12. 13. 14. 15A. 15B. 16. 17A. 17B. 18. 19A. 19B. 20. Not Shown. Note:
1. Used on: 4405 AAAB, AHAS, AHAU, AHAZ, 4408 AADB, AHDZ, AHDS, AHDU, 4420 AHCS, AHCU and AHCZ Mfg. Code A4 and later. 2. Used on: 4405 AAAB and 4408 Mfg. Code A4 and later. 3. Used on:
78-8096-5713-9. BAFFLE. 1 26-1008-5592-8. SCREW, Taptite, M3.5 X 8. 10 78-8079-8810-6. BRACKET, Backup, Fixed Post. 1 78-8096-5808-7. BASE. 1 78-8079-8809-8. BLOCK, Post. 1 78-8096-5712-1. BASE, Floor. 1 26-1008-5211-5. FOOT, Mounting. 4 78-8073-6942-2. SCREW, Foot. 4 26-1002-5268-8. SCREW, Machine, 6-32 X 3/8. 1 26-1001-7983-2. NUT, Keps, 6-32. 1 78-8096-5807-9. LABEL, Lamp Replacement, EHJ. 1 78-8096-5771-7. LABEL, Lamp Replacement, FNT. 1 78-8096-5739-4. LABEL, Lamp Replacement, EYB. 1 78-8096-5816-0. LABEL, Lamp Replacement, Xerox. 1 34-7033-0130-8. LABEL, Blank (Nameplate). 1 78-8096-5770-9. THERMOSTAT, Safety. 1 26-1001-6189-7. FUSE CARRIER (See Note 1). 1 26-1005-9599-5. FUSE, 5 Amp (See Note 2). 1 26-1008-6347-6. FUSE, 4 Amp (See Note 3). 1 26-1011-2502-4. FUSEHOLDER (See Note 1). 1 78-8073-7212-9. SWITCH, Hi/Lo. 1 78-8079-9134-0. SWITCH, 127V/220V (Brazil). 1 78-8079-9138-1. LABEL, Switch (Brazil). 1 78-8079-9201-7. LABEL, Service (Australia). 1 78-8073-3292-5. LABEL, Service (New Zealand). 1 78-8064-1809-7. LABEL, Caution (Australia). 1 78-8003-8335-4. TIE, Strap. AR
all versions except 4405 AAAB and 4408 AADB Mfg. Code A4 and later.
Section 7 FRONT COVER ASSEMBLY
Section 7 FRONT COVER ASSEMBLY Item No.
1A. 1B. 2. 3A. 3B. 3C. 3D. 3E. 3F. 3G. 3H. 4A. 4B. 4C. 5A. 5B. 6A. 6B. 6C. 6D. 7. 8. 9A. 9B. 10. 11. 12. 13. 14. 15. 16. 17. 18. 19. 20. 21. 22. 23. 24. 25. 26A. 26B. 27. Note:
1. Used on: OUS versions with Mfg. Code C1 and earlier. 2. Used on: OUS versions with Mfg. Code C1 and up.

78-8096-5813-7. COVER, Front (Xerox). 78-8096-5710-5. COVER, Front. 78-8079-8797-5. PLATE, Cord, Small (Gray). 78-8065-8221-5. POWER CORD, Australia. 78-8096-5775-8. POWER CORD, Europe, 15 Ft. 78-8065-8545-7. POWER CORD, Italy, 10 Ft. 78-8096-5779-0. POWER CORD, Japan, 10 Ft. 78-8065-8280-1. POWER CORD ASSEMBLY, South Africa. 78-8096-5777-4. POWER CORD, Swiss, 15 Ft. 78-8079-8822-1. POWER CORD, US, (120V), 10 Ft. 78-8096-5776-6. POWER CORD, U.K. 15 Ft. 78-8096-5702-2. MOTOR, (230V). 78-8096-5703-0. MOTOR, (120V). 78-8096-5759-2. MOTOR, (100V). 78-8096-5815-2. SWITCH, Rocker (Xerox). 78-8096-5718-8. SWITCH, Rocker (See Note 1). 78-8079-8921-1. TRANSFORMER, FNT (100V). 78-8079-8860-1. TRANSFORMER, FNT (230/240V). 78-8079-8861-9. TRANSFORMER, FNT (240/250V). 78-8096-5818-6. TRANSFORMER, 127/220V, Brazil. 78-8064-1834-5. DIODE , Inline. 78-8079-9194-4. BLADE, Fan. 78-8096-5719-6. BRACKET, Motor (120V versions). 78-8096-5730-3. BRACKET, Motor (220/240V versions). 78-8096-5726-1. MICROSWITCH (See Note 1). 78-8096-5728-7. BRACKET, Transformer. 78-8096-5740-2. SPRING, Torsion. 26-1008-4567-1. SCREW, Type BT, 4-24 X 3/4. 26-1009-8678-0. SCREW, Taptite, M4 X 60,. 26-1002-4971-8. SCREW, Plastite, 6-19 X 1/2. 26-1002-4967-6. SCREW, Plastite, 4-20 X 3/8. 26-1008-5592-8. SCREW, Taptite, M3.5 X 8. 78-8054-1019-4. INSULATOR, Fuse. 26-1005-6624-4. FUSEHOLDER. 26-1008-6347-6. FUSE, 4 Amp. 78-8033-1666-6. CLIP, Tinnerman. 26-1004-2053-3. WASHER, Lock, Internal/External Tooth, #8. 78-8073-7127-9. RESISTOR. 78-8005-1147-5. CLIP. 26-1005-4113-0. CLIP, Clamp. 78-8079-9018-5. LABEL, Fuse, 4Amp. 78-8057-4184-6. LABEL, Fuse, 5Amp. 78-8096-5817-8. SWITCH, ON/OFF (See Note 2).

Section 8 LAMP HOUSING

DETAIL A
DETAIL A 9 OUS FNT/EHJ DUAL

DETAIL B

DUAL EYB LAMP ASSEMBLY

OUS FNT/EHJ SINGLE

Section 8 LAMP HOUSING Item No.
1A. 1B. 1C. 2. 3. 4A. 4B. 5. 6. 7. 8. 9. 10. 11. 12. 13. 14A. 14B. 15. 16. 17. 18. 19. 20. 21A. 21B. 22. Note:
1. Used on: 4405 AAAD,AJA, 4406 AJE, AJEX and 4407 AJF.
78-8096-5725-3. LAMP, Projection, EYB, 360W, 82V. 78-8054-1175-4. LAMP, Projection, FNT, 275W, 24V. 78-8062-0930-6. LAMP, Projection, EHJ, 250W, 24V. 78-8079-9053-2. SPRING, Catch. 78-8096-5709-7. LENS, Condenser, 40mm. 78-8096-5716-2. SOCKET, Lamp, TP61. 78-8096-5789-9. SOCKET, EYB (Black Leads). 78-8096-5720-4. REFLECTOR. 78-8096-5734-5. BRACKET, Reflector, Dual. 78-8096-5723-8. BRACKET, Condenser. 78-8096-5747-7. BRACKET, Deflector. 78-8096-5727-9. ROD, Pivot. 78-8096-5745-1. BRACKET, EYB, Socket, Dual. 78-8096-5785-7. SOCKET ASSEMBLY (FNT Dual). 26-1008-5592-8. SCREW, Taptite, M3.5 X 8. 26-1002-5086-4. SCREW, Taptite, 4-40 X 3/8. 12-7992-2978-1. SPRING, Compression. 12-7992-3100-1. SPRING, Compression. 78-8096-5749-3. SHAFT, Over Center. 78-8096-5768-3. SWITCH, Lampchanger. 26-1002-6208-3. SCREW, Taptite, M3 X 16. 78-8656-5801-3. RING, Push-on,. 26-1004-9300-1. SCREW, Taptite, M3 X 6. 78-8096-5793-1. TUBING, Insulation. 78-8096-5810-3. BRACKET, Reflector, EYB (See Note 1). 78-8096-5722-0. BRACKET, Reflector, EYB. 78-8096-5811-1. SOCKET ASSEMBLY, FNT Single.

Section 9 WIRE JUMPERS

Section 9 WIRE JUMPERS Item No.
1. 2. 3. 4. 5. 6. 7. 8. 9. 10.
78-8096-5737-8. 78-8096-5738-6. 78-8096-5741-0. 78-8079-8973-2. 78-8097-3619-8. 78-8097-3603-2. 78-8079-8967-4. 78-8079-8966-6. 78-8065-8268-6. 78-8065-8273-6.
JUMPER 8I (Qty 2 EYB versions). JUMPER 15I (Used on EYB versions only.). JUMPER, Ground 7I. JUMPER, 10 (Switch/Fuse) (Used on FNT versions only.). JUMPER, 5 Black (Used on FNT versions only.). JUMPER, 8 Grey. JUMPER, 8.75 (Not shown). JUMPER. WIRE, Lead, Fuse, Kill Switch (Used on FNT versions only.). WIRE, Lead, Power Supply, Kill Switch (Used on FNT versions only.).
4400 Series Overhead Projectors Appendix A SPECIFICATIONS
Country Australia New Zealand Australia New Zealand Australia New Zealand Power Cord Australian Australian Australian Australian Australian Australian Model Alpha 4405 AHAA 4405 AHAN 4408 AHDA 4408 AHDN 4420 AHCA 4420 AHCN Stock Number 78-9236-5916-9 78-9236-5923-5 78-9236-5930-0 78-9236-5937-5 78-9236-5944-1 78-9236-5951-6 Voltage/Hz 240/50 240/50 240/50 240/50 240/50 240/50 SAA SAA Agency SAA Stage Size A4 A4 A4 A4 A4 A4 Head Type Open Singlet Open Singlet Open Singlet Open Singlet Open Triplet Open Triplet Lamp Changer No No Yes Yes Yes Yes Color Tuning Internal Internal Internal Internal Internal Internal Post Type Fixed Fixed Fixed Fixed Fixed Fixed Lamp Type FNT FNT FNT FNT FNT FNT Handle No No No No No No Lamp Control None None None None None None Lamps Installed Fresnel 4400 SE CL 4400 SE CL 4400 SE CL 4400 SE CL 9800 DE CL 9800 DE CL
Power Transformer Transformer Transformer Transformer Transformer Transformer
Fuse T4A T4A T4A T4A T4A T4A
Amps 1.7 1.7 1.7 1.7 1.7 1.7
Cord Storage No No No No No No
Europe Std. Europe Std. Europe Std.
European European European
4405 AHAS 4408 AHDS 4420 AHCS
78-9236-5913-6 78-9236-5927-6 78-9236-5941-7

230/50 230/50 230/50

EUROPEAN EUROPEAN EUROPEAN

A4 A4 A4

Open Singlet Open Singlet Open Triplet

No Yes Yes

Internal Internal Internal

Fixed Fixed Fixed

FNT FNT FNT

No No No

None None None
4400 SE CL 4400 SE CL 9800 DE CL
Transformer Transformer Transformer

T4A T4A T4A

1.7 1.7 1.7
Brazil Japan Brazil Japan Japan
Japan Japan Japan Japan Japan
4405 AAAB 4405 ABAJ 4408 AADB 4408 ABDJ 4420 ABCJ
78-9236-6006-8 78-9236-5917-7 78-9236-6008-4 78-9236-5931-8 78-9236-5945-8
127/220/50 100/50/60 127/220/50 100/50/60 100/50/60 MITI MITI MITI

A4 A4 A4 A4 A4

Open Singlet Open Singlet Open Singlet Open Singlet Open Triplet

No No Yes Yes Yes

Internal Internal Internal Internal Internal
Fixed Fixed Fixed Fixed Fixed

FNT FNT FNT FNT FNT

No No No No No

None None None None None

4400 SE CL 4400 SE CL 4400 SE CL 4400 SE CL 9800 DE CL
Transformer Transformer Transformer Transformer Transformer

None T4A T4A T4A T4A

Chile Chile Chile

Other Other Other

4405 AHAC 4408 AHDC 4420 AHCC
78-9236-5926-8 78-9236-5940-9 78-9236-5954-0
South Africa South Africa South Africa
4405 AHAR 4408 AHDR 4420 AHCR
78-9236-5918-5 78-9236-5932-6 78-9236-5946-6

240/50 240/50 240/50

SABS SABS SABS
Switzerland Switzerland Switzerland

Swiss Swiss Swiss

4405 AHAZ 4408 AHDZ 4420 AHCZ
78-9236-5915-1 78-9236-5929-2 78-9236-5943-3

SEV SEV SEV

United Kingdom United Kingdom United Kingdom

U.K. U.K. U.K.

4405 AHAU 4408 AHDU 4420 AHCU
78-9236-5914-4 78-9236-5928-4 78-9236-5942-5
Stage Size 10.5 UL/CSA UL/CSA 10.5 10.5 10.5 UL/CSA 10.5 10.5 UL/CSA UL/CSA 10.5 10.5 Lamp Changer No No No No No Yes Yes Yes Color Tuning Internal Internal Internal Internal Internal Internal Internal Internal Lamp Type EYB EYB EYB EYB EYB EYB EYB EYB Lamps Installed 1
Cord Storage No No No No No No No No
Country Saudi Arabia United States United States Xerox Distribution United States Saudi Arabia United States United States
Power Cord United States United States United States United States United States United States United States United States

Discontinued Model

No technical support No replacement parts

3800 Series

Overhead Projector
Illustrated Parts Breakdown

For: 3820

3M Visual Systems Division 6801 River Place Boulevard Austin, Texas 78726-9000
Printed in U.S.A. E 3M 6/95 78-6970-6825-8
3800 Series Overhead Projectors

IPB Table of Contents

7-1 7-1 7-1 7-1 7-3 7-4 7-6 7-8 7-10 7-12 7-14 7-16 7-18 7-21
Introduction. Part Numbers. Locating and Identifying a Part. Machine Identification Plate. Section 0 OVERVIEW. Section 1 OPEN SINGLET HEAD ASSEMBLY. Section 2 CLAMSHELL HEAD ASSEMBLY. Section 3 ARM AND FOCUS ASSEMBLY. Section 4 TOP COVER ASSEMBLY. Section 5 BASE ASSEMBLY. Section 6 FRONT COVER ASSEMBLY. Section 7 LAMP HOUSING. Section 8 WIRE JUMPERS. Appendix A SPECIFICATIONS.

E 3M 1995

Introduction
This Illustrated Parts Breakdown (IPB) contains the information necessary to locate and identify specific parts of the 3800 Series Overhead Projectors.
When ordering parts, include part identification number, description, quantity and the following information: 1. Product Name: The specific version number of the projector. 2. Model Number/Alpha Code: The series number of the projector followed by a three or four character alpha code identifier. The Alpha Code indicates the design level, specific product characteristics, power cord or distribution specific to a country. 3. MFG Code: The date the projector was manufactured. See example below:
MFG Code Letter C C D E Digit Jan Mar Apr Jun Jul Sep Oct Dec

Part Numbers

All components available on a replacement basis are listed with their 3M identification number. The parts identification list opposite each illustration provides the description adequate to identify components.
Locating and Identifying a Part
If physical appearance and general location of an item are known: 1. Use the Overview illustration to determine which section includes the item. 2. Refer to the section and locate the item on the exploded view illustration. The part identification numbers provided in this manual are from the most current data available. Make sure part identification numbers for your component have not been amended by changes and updates made to your 3800 Series Overhead Projector.
4. Lamp: The electrical rating of the lamp. 5. S/N: The serial number assigned to this projector. For part orders contact: Dealers: 3M Subsidiaries: Refer to Dealers Guide Contact Export Operations
Machine Identification Plate
The Machine Identification Plate is located on the bottom side of each projector and lists specific information that is needed when calling for technical assistance or ordering parts.
Figure 7-1. Machine Identification Plate
This page intentionally left blank.
Table of Contents Section No. 8.... Title
Overview. 3 Open Singlet Head Assembly. 4 Clamshell Head Assembly. 6 Arm and Focus Assembly. 8 Top Cover Assembly. 10 Base Assembly. 12 Front Cover Assembly. 14 Lamp Housing. 16 Wire Jumpers. 18
Appendix A. Specifications. 21

IMPORTANT NOTICE

3M reserves the right to sell or furnish NEW OR RECONDITIONED PARTS. New and reconditioned parts are covered by the same 3M new parts limited warranty.

Section 0 OVERVIEW

Open Singlet Head Assembly (See Section 1)
Arm and Focus Assembly (See Section 3)
Top Cover Assembly (See Section 4)
Base Assembly (See Section 5) Front Cover Assembly (See Section 6) Base Assembly (See Section 5)
Clamshell Head Assembly (See Section 2) Top Cover Assembly (See Section 4) Arm and Focus Assembly (See Section 3)
Front Cover Assembly (See Section 6)
Base Assembly (See Section 5 )
Section 1 OPEN SINGLET HEAD ASSEMBLY
Section 1 OPEN SINGLET HEAD ASSEMBLY Item No.

0. 1. 2. 3. 4. 5. 6. 7. 8. 9. 10.

Part Number

78-8079-9151-4. 78-8014-8951-5. 78-8064-1646-3. 78-8096-5798-0. 78-8064-1605-9. 78-8003-9762-8. 78-8079-8802-3. 26-1008-5592-8. 26-1005-9570-5. 26-1004-0460-2. 78-8079-8803-1.

Description

HEAD ASSEMBLY, Open Singlet (Complete). LENS, Wide Angle (293mm). TUBING, Lens. MIRROR ASSEMBLY, Open Singlet, Mirror. SPRING, Mirror Damping. NUT, U-Type, 8-32. COVER, Head, Singlet. SCREW, Taptite, M3.5 x 8. SCREW, Mach. 8-32 x 7/16. WASHER, Plain Nylon. BRACKET, Lens, Singlet.
Section 2 CLAMSHELL HEAD ASSEMBLY

6 4A 10

Singlet Lens
Section 2 CLAMSHELL HEAD ASSEMBLY Item No.
!A. 1B. 2A. 2B. 3. 4A. 4B. 5A. 5B. 6. 7. 8. 9. 10.
78-8096-5760-0. COVER, Head, Clamshell. 78-8096-5832-7. COVER, Head, Clamshell, (Used on China versions only). 78-8096-5801-2. MIRROR ASSEMBLY, Clamshell Head, Singlet. 78-8096-5799-8. MIRROR ASSEMBLY, Clamshell Head, Triplet. 78-8096-5790-7. RING, Adapter, Triplet Lens. 78-8014-8951-5. LENS, Singlet (293mm). 78-8064-1833-7. LENS, Triplet (340mm). 78-8096-5761-8. BRACKET, Head. 78-8096-5831-9. BRACKET, Head (Used on China versions only). 26-1007-5427-9. SCREW, Plastite, 6-19 X 3/8. 78-8096-5802-0. BUSHING, Flange. 26-1009-9749-8. SCREW, Taptite, Sems, M4 X 10. 26-1009-9788-6. CLIP, Mirror. 78-8064-1646-3. TUBING, Lens.
Section 3 ARM AND FOCUS ASSEMBLY
Used on 3808 AHDY and 3820 AHCY
Section 3 ARM AND FOCUS ASSEMBLY Item No.
1. 2. 3. 4. 5. 6. 7. 8. 9A. 9B. 10. 11. 12. 13. 14. 15. 16A. 16B. 17. 18. 19. 20. 21. 22. 23. 24. 25. 26.
78-8096-5758-4. BRACKET, Head. 26-1002-6172-1. SCREW, Plastite, M4.7 X 10. 78-8064-1555-6. GUIDE, Gear Rack. 78-8064-1552-3. GEAR RACK, Focus. 78-8064-1522-6. GEAR, Focus. 26-1002-4971-8. SCREW, Plastite, 6-19 X 1/2. 78-8064-1556-4. SLIDE, Focus. 78-8096-5744-4. ARM, Detachable. 78-8096-5743-6. POST (Not used on versions indicated in Note 1 and 2.). 78-8096-5788-1. POST, Extended (See Note 1). 78-8064-1506-9. COVER, Focus. 78-8064-1601-8. KNOB, Focus. 78-8079-8811-4. BOLT, Post. 26-1009-9690-4. SCREW, Crimptite, 10-24 X 1/2. 78-8096-5787-3. BRACKET, Stiffening Arm. 78-8096-5804-6. WRENCH. 78-8096-5828-5. POST, Folding (Used on 3808 AHDY). 78-8096-58269. POST, Folding (Used on 3820 AHCY). 26-1009-9847-0. SPRING, Compression (See Note 2). 78-8079-8997-1. SCREW, Latch (See Note 2). 78-8079-8852-8. POST LOCK (See Note 2). 26-1008-5592-8. SCREW, Taptite, M3.5 x 8 (See Note 2). 26-1002-5107-8. SCREW, Taptite, Pan Head, 10-32 x 5/8 (See Note 2). 26-1006-7602-7. NUT, Hex, 1/4 20, Elastic (See Note 2). 26-1009-7284-8. WASHER (See Note 2). 78-8079-8875-9. POST MOUNT, Pivot (See Note 2). 78-8079-8850-2. BOLT, Pivot (See Note 2). 78-8079-8846-0. BRACKET, Pivot (See Note 2).

1. Used on 3820 AACT, AHCE, AHCF, AHCH, AHCK, ARCP only. 2. Used on 3808 AHDY and 3820 AHCY only.
Section 4 TOP COVER ASSEMBLY
Section 4 TOP COVER ASSEMBLY Item No.
1. 2A. 2B. 3A. 3B. 4. 5. 6. 7. 8. 9. 10. 11. 12. 13. 14.
78-8064-1473-2. 78-8096-5750-1. 78-8096-5805-3. 78-8096-5701-4. 78-8096-5729-5. 78-8003-8593-8. 78-8096-5731-1. 26-1001-7983-2. 78-8097-3637-0. 78-8064-1531-7. 26-1002-6172-1. 26-1002-4971-8. 78-8096-5717-0. 78-8096-5822-8. 78-8096-5814-5. 78-8096-5809-5.
GLASS, Stage. SCREW, Cover. SCREW, Cover Thumb. COVER, Top (10.5 X 10.5). COVER, Top (A4). RING, Retaining, Rotor Clip. WASHER, Plastic. NUT, Keps, 6-32. FRESNEL. RETAINER, Stage Glass. SCREW, Plastite, M4.7 X 10. SCREW, Plastite, 6-19 X 1/2. SPRING, Cover Detent. RETAINER, Back, Fresnel,. RETAINER, Front, Fresnel,. LABEL, Lampchanger.
Section 5 BASE ASSEMBLY 2
Section 5 BASE ASSEMBLY Item No.
1. 2. 3. 4A. 4B. 5. 6. 7. 8. 9. 10. 11A. 11B. 12. 13. 14. 15. 16. 17 - 20. 21. 22. Not Shown.
78-8096-5713-9. BAFFLE. 1 26-1008-5592-8. SCREW, Taptite, M3.5 X 8. 10 78-8079-8810-6. BRACKET, Backup, Fixed Post. 1 78-8096-5808-7. BASE. 1 78-8096-5827-7. BASE (Used on folding post versions only.). 1 78-8079-8809-8. BLOCK, Post. 1 78-8096-5712-1. BASE, Floor. 1 26-1008-5211-5. FOOT, Mounting. 4 78-8073-6942-2. SCREW, Foot. 4 26-1002-5268-8. SCREW, Machine, 6-32 X 3/8. 1 26-1001-7983-2. NUT, Keps, 6-32. 1 78-8096-5807-9. LABEL, Lamp Replacement, EHJ. 1 78-8096-5771-7. LABEL, Lamp Replacement, FNT. 1 34-7033-0130-8. LABEL, Blank (Nameplate). 1 78-8096-5770-9. THERMOSTAT, Safety. 1 Not Used 26-1008-6347-6. FUSE, 4 Amp. 1 26-1005-6624-4. FUSEHOLDER. 1 Not Used 26-1002-4948-6. SCREW, Plastite, 6-19 X 5/16 (Used on folding post versions only.). 2 78-8079-8890-3. CRADLE, Post (Used on folding post versions only.). 1 78-8003-8335-4. TIE, Strap. AR
Section 6 FRONT COVER ASSEMBLY
Section 6 FRONT COVER ASSEMBLY Item No.
1. 2. 3A. 3B. 3C. 3D. 4A. 4B. 5. 6A. 6B. 6C. 6D. 7. 8. 9. 10. 11. 12. 13. 14. 15. 16. 17. 18. 19. 20. 21. 22. 23. 24. 25. 26.
78-8096-5710-5. 78-8079-8797-5. 78-8065-8223-1. 78-8096-5779-0. 78-8065-8222-3. 78-8096-5830-1. 78-8096-5702-2. 78-8096-5703-0. 78-8096-5718-8. 78-8079-9070-6. 78-8079-8859-3. 78-8079-8860-1. 78-8096-5834-3. Not Used 78-8079-9194-4. 78-8096-5730-3. 78-8096-5726-1. 78-8096-5728-7. 78-8096-5740-2. 26-1008-4567-1. 26-1009-8678-0. 26-1002-4971-8. 26-1002-4967-6. 26-1008-5592-8. Not Used 26-1005-6624-4. 26-1008-6347-6. Not Used 26-1004-2053-3. Not Used 78-8005-1147-5. 26-1005-4113-0. 78-8079-9018-5.
COVER, Front. PLATE, Cord, Small (Gray). POWER CORD, Europe, 10 Ft. POWER CORD, Japan, 10 Ft. POWER CORD, U.K. POWER CORD, China, 10 Ft. MOTOR, (230V). MOTOR, (120V). SWITCH, Rocker (See Note 1). TRANSFORMER, 120V, Taiwan. TRANSFORMER, FNT (220V). TRANSFORMER, FNT (230/240V). TRANSFORMER, China. BLADE, Fan. BRACKET, Motor. MICROSWITCH. BRACKET, Transformer. SPRING, Torsion. SCREW, Type BT, 4-24 X 3/4. SCREW, Taptite, M4 X 60,. SCREW, Plastite, 6-19 X 1/2. SCREW, Plastite, 4-20 X 3/8. SCREW, Taptite, M3.5 X 8.

FUSEHOLDER. 1 FUSE, 4 Amp. 1 WASHER, Lock, Internal/External Tooth, #8. 1 CLIP. 1 CLIP, Clamp. 1 LABEL, Fuse, 4Amp. 1

Section 7 LAMP HOUSING

DUAL LAMP HOUSING

SINGLE LAMP HOUSING

Section 7 LAMP HOUSING Item No.
1A. 1B. 2-3. 4A. 4B. 5. 6. 7. 8. 9. 10. 11. 12. 13. 14. 15. 16. 17. 18. 19. 20. 21. 22.
78-8054-1175-4. 78-8062-0930-6. Not Used 78-8096-5716-2. 78-8096-5789-9. 78-8096-5720-4. 78-8096-5734-5. Not Used 78-8096-5747-7. 78-8096-5727-9. 78-8096-5745-1. 78-8096-5785-7. 26-1008-5592-8. 26-1002-5086-4. 12-7992-3100-1. 78-8096-5749-3. 78-8096-5768-3. 26-1002-6208-3. 78-8656-5801-3. 26-1004-9300-1. 78-8096-5793-1. 78-8096-5722-0. 78-8096-5811-1.
LAMP, Projection, FNT, 275W, 24V. 1 LAMP, Projection, EHJ, 250W, 24V. 1 SOCKET, Lamp, TP61. SOCKET, Black Leads. REFLECTOR. BRACKET, Reflector, Dual. BRACKET, Deflector. ROD, Pivot. BRACKET, Socket, Dual. SOCKET ASSEMBLY, Dual. SCREW, Taptite, M3.5 X 8. SCREW, Taptite, 4-40 X 3/8. SPRING, Compression. SHAFT, Over Center. SWITCH, Lampchanger. SCREW, Taptite, M3 X 16. RING, Push-on,. SCREW, Taptite, M3 X 6. TUBING, Insulation. BRACKET, Reflector. SOCKET ASSEMBLY, FNT Single. 1

Section 8 WIRE JUMPERS

Section 8 WIRE JUMPERS Item No.
1. 2. 3. 4. 5. 6-7. 8. 9. 10.
78-8096-5737-8. Not Used 78-8096-5741-0. 78-8079-8973-2. 78-8097-3619-8. Not Used 78-8079-8966-6. Not Used 78-8065-8273-6.
JUMPER 8I. 2 JUMPER, Ground 7I. 1 JUMPER, 10 Black (Switch/Fuse) (Used on FNT versions only.). 1 JUMPER, 5, Black. 1 JUMPER. 1 WIRE, Lead, Power Supply, Kill Switch (Used on FNT versions only.). 1
3800 Series Overhead Projectors Appendix A SPECIFICATIONS
Country Thailand Korea Thailand Korea Thailand Korea Power Cord European European European European European European Model Alpha 3805 AHAF 3805 AHAK 3808 AHDF 3808 AHDK 3820 AHCF 3820 AHCK Stock Number 78-9236-5925-0 78-9236-5924-3 78-9236-5939-1 78-9236-5938-3 78-9236-5953-2 78-9236-5952-4 Voltage/Hz 220/50 220/60 220/50 220/60 220/50 220/60 Agency Stage Size A4 A4 A4 A4 A4 A4 Head Type Open Singlet Open Singlet Open Singlet Open Singlet Open Triplet Open Triplet Lamp Changer No No Yes Yes Yes Yes Color Tuning Internal Internal Internal Internal Internal Internal Post Type Fixed Fixed Fixed Fixed Fixed Fixed Lamp Type FNT FNT FNT FNT FNT FNT Handle No No No No No No Lamp Control None None None None None None Lamps Installed Fresnel 4400 SE CL 4400 SE CL 4400 SE CL 4400 SE CL 9800 DE CL 9800 DE CL
Power Transformer Transformer Transformer Transformer Transformer Transformer
Fuse T4A T4A T4A T4A T4A T4A
Amps 1.7 1.7 1.7 1.7 1.7 1.7
Cord Storage No No No No No No
Taiwan Philippines Taiwan Philippines Taiwan Philippines
Japan Japan Japan Japan Japan Japan

3805 AAAT 3805 ARAP 3808 AADT 3808 ARDP 3820 AACT 3820 ARCP
78-9236-5922-7 78-9236-5920-1 78-9236-5936-7 78-9236-5934-2 78-9236-5950-8 78-9236-5948-2
120/60 240/60 120/60 240/60 120/60 240/60

A4 A4 A4 A4 A4 A4

Open Singlet Open Singlet Open Singlet Open Singlet Open Triplet Open Triplet

No No Yes Yes Yes Yes

Internal Internal Internal Internal Internal Internal
Fixed Fixed Fixed Fixed Fixed Fixed

FNT FNT FNT FNT FNT FNT

No No No No No No
4400 SE CL 4400 SE CL 4400 SE CL 4400 SE CL 9800 DE CL 9800 DE CL
Transformer Transformer Transformer Transformer Transformer Transformer

T4A T4A T4A T4A T4A T4A

3 1.1.1.7

None None None None

Hong Kong Hong Kong Hong Kong

Other Other Other

3805 AHAH 3808 AHDH 3820 AHCH
78-9236-5919-3 78-9236-5933-4 78-9236-5947-4

220/50 220/50 220/50

A4 A4 A4
Open Singlet Open Singlet Open Triplet

No Yes Yes

Internal Internal Internal

Fixed Fixed Fixed

FNT FNT FNT

No No No None None

4400 SE CL 4400 SE CL 9800 DE CL
Transformer Transformer Transformer

T4A T4A T4A

1.7 1.7 1.7

No No No

Singapore & Malaysia China Singapore & Malaysia China Singapore & Malaysia China
U.K. U.K. U.K. U.K. U.K. U.K.
3805 AHAE 3805 AHAY 3808 AHDE 3808 AHDY 3820 AHCE 3820 AHCY
78-9236-6002-7 78-9236-6092-8 78-9236-6003-5 78-9236-6093-6 78-9236-6004-3 78-9236-6094-4

240/50

Fixed Fixed Fixed Folding Fixed Folding

FNT EHJ FNT EHJ FNT EHJ

None None None None None None
4400 SE CL 9800 DE CL 4400 SE CL 9800 DE CL 9800 DE CL 9800 DE CL
None T4A None T4A None T4A