Loading...WelchAllyn 49600, 49602, 49604, 49606, 47100 User manual
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Welch Allyn Single Fiber |
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Illumination Headlight |
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Headlights |
System |
Operation Manual |
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Service Manual
Models: 49600,49602,49604,49606,
47100,47102,47104,47106
Copyright 1997
Welch Allyn Inc.
4341 State Street Road
P.O Box 220
Skaneateles Falls, NY 13153-0220
P/N 496144 |
Rev A. |
Revision (History) Page
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Rev. |
Description of Change |
ECN # |
Date |
Initial |
A |
New Release |
5-34455 |
1/14/97 |
JJ/MD |
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SFI Light Source/Luminaire Service Manual |
Page 2 |
Introduction
To Service Personnel:
The information in this manual is subject to change without notice and should not be construed as a commitment by Welch Allyn, Inc.
Welch Allyn assumes no responsibility for any errors that may appear in this manual. If the product and/or its operation varies significantly from any description herein, please contact the Welch Allyn Product Service Department at 4341 State Street Road, Skaneateles Falls, New York 13153-0220, 1 800 6699771, (315) 685-4445
This product has been designed to provide a high degree of safety and reliability. However, we can not guarantee against the deterioration of components due to aging and normal wear.
All service and repairs must be performed by authorized Welch Allyn personnel or agents, using Welch Allyn replacement parts. Failure to do so will invalidate the product warranty.
Authorized service centers should refer to repair specification for proper test and device history record requirements.
Please refer to the product warranty for specific coverage.
Welch Allyn, Inc.
Medical Products
4341 State Street Road
Skaneateles Falls, New York 13153-0220 USA
1 800 669-9771
(315) 685-4445
SFI Light Source/Luminaire Service Manual |
Page 3 |
Introduction
Table of Contents
SECTION 1: General Information
Basic System Description . . . . . . . . . . . . . 6
Specifications . . . . . . . . . . . . . . . . . . . . . . 7
SECTION 2: Service |
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Intent of Manual . . . . . . . . . . . . . . . . . . . |
. 8 |
Required Tools . . . . . . . . . . . . . . . . . . . . . |
8 |
Words of Caution . . . . . . . . . . . . . . . . . . . |
9 |
Performance Check . . . . . . . . . . . . . . . . . |
9 |
Calibration . . . . . . . . . . . . . . . . . . . . . . . |
10 |
SECTION 3: Problem Solving
Troubleshooting . . . . . . . . . . . . . . . . . . . 11
SECTION 4: Disassembly and Repair
SECTION 5: Maintenance
Preventative Maintenance . . . . . . . . . . . . 22 Cleaning . . . . . . . . . . . . . . . . . . . . . . . . . 23 Checking Ground Impedance . . . . . . . . 23 Measuring Leakage Current . . . . . . . . . . 23 Fuse or Lamp Replacement . . . . . . . . . . 25
SECTION 6: Theory of Operations
Introduction . . . . . . . . . . . . . . . . . . . . . . . 26
Start Up Routine . . . . . . . . . . . . . . . . . . . 26
Power Supply . . . . . . . . . . . . . . . . . . . . . 27
Ballast Board . . . . . . . . . . . . . . . . . . . . . . 27
SFI Light Source/Luminaire Service Manual |
Page 4 |
Introduction
Table of Drawings (Appendix A)
N/A . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Parts List/Recommended Inventory A03569 (Reference Only) . . . . . . . . . . . . . . . . . . . . . . . Electrical Safety Test Specification 496141 (Reference Only) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . SFI Exploded View 496045 (Reference Only) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Interconnect Diagram
Note that the drawings contained within this manual are for reference only. Consult factory for specific drawing and revision level.
SFI Light Source/Luminaire Service Manual |
Page 5 |
General Information
Introduction
Basic System Description
Model # 49601 is a medical light source which is used in conjunction with the Welch Allyn SFI Headlight Luminaire model 49610. The headlight is a lightweight fiber optic system that provides a bright white light through the use of Arc Lamp technology.
49600....Welch Allyn Light Source
100-240 VAC
50/60 Hz
U.S.A. Plug Type
49602...Welch Allyn Light Source
100-240 VAC
50/60 Hz
European Plug Type
49604...Welch Allyn Light Source
100-240 VAC
50/60 Hz
U.K. Plug Type
49606...Welch Allyn Light Source
100-240 VAC
50/60 Hz
Australian Plug Type
SFI Light Source/Luminaire Service Manual |
Page 6 |
Section 1 |
General Information |
Specifications
Power Supply
100-240 VAC, 50-60 Hz, Universal input
Power Consumption 40 Watts Max. Leakage Current: Less than 100 microamps
Light Source Dimensions
WxLxH = 4.5in (11.43cm) x 6.5in (16.5cm) x 2.5in (6.35cm)
Light Source Weight
Under 5 pounds (2.25 Kilograms)
Illumination System
Proprietary Arc Lamp Color temperature: 5500 K Lamp: 60 Volts, 24 Watts
Lamp Life: 200 hours minimum when employed in a 45 minutes on / 15 minutes off duty cycle. Average lamp life decreases when shorter duty times are employed.
Dimming System |
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Manual Shutter: 20% to 100% full output |
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Fiber Optic Cable Interface |
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Welch Allyn proprietary connector |
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Approvals |
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UL 2601-1 |
IEC 801-2,3,4,5 |
CSA C22.2 no. 601.1-M90 |
EN 55011 |
IEC 601-1 |
IEC 601-1-2 |
Australia AS3200
Light Spot Diameter at 16in (40cm) Distance
Minimum: .75in (20mm)
Maximum: 3.0in (75mm)
Environment
Operating: 60 F to 85 F
Storage: -13 F to 140 F
Equipment Classification
Light Source: Type B
Luminaire: Type BF
Fuses
T1.0A L250V (1.0Amp., 250V, time lag (Slow-Blow), Low breaking capacity)
SFI Light Source/Luminaire Service Manual |
Page 7 |
Service
Intent of Manual
The purpose of this manual is to provide Welch Allyn Inc. authorized service representatives with systematic guidelines for preventative maintenance, problem identification, and service of the Welch Allyn Single Fiber Headlight System. We have included the theory of operation schematic diagrams, simplified drawings, service tips and procedures to assist a trained service representative with board-level repairs. Should you encounter problems that are beyond the scope of this manual, please contact the Technical Service Department of Welch Allyn's Medical
Products for assistance.
Required Tools for Service
1.3/8" Nut Driver
2.Screwdriver(s): Phillips #1, Phillips #2
3.Screwdriver: Flat Blade #4
4.Long Nose Pliers
5.Wire Cutters Xcelite 54CG
Required Equipment:
1.Digital Volt/Ohm Meter with Leads (True RMS). Beckman model 310 or equivalent.
2.Soldering Iron
3.Solder Sucker or Desoldering Wick
4.Kepco Model MSK 10-10M Power Supply. Capable of 10 amps at 10VDC.
5.Hy-Pot TesterAssociated Research Inc. Model 35400D or Equivalent.
SFI Light Source/Luminaire Service Manual |
Page 8 |
Section 2 |
Service |
Words of Caution:
High Voltage
Use caution when servicing. When servicing the unit, potentially dangerous high voltage levels are exposed. Disconnect the power cord whenever possible to avoid electric shock.
Static Electricity (ESD)
Adhere to standard ESD practices at all times when servicing this equipment. Many of the electronic devices in this equipment are static sensitive, and may suffer catastrophic or latent failure if handled improperly.
Heat
Lamps, power supplies, and heat sinks may emit extreme amounts of heat during and after operation. Approach and handle these and other potentially hot components with caution.
Finished Parts
Handle all finished parts with care. The finish can be easily scratched or damaged from poor or improper handling.
Performance Checks
The following performance checks will help you (1) determine whether or not the system is operating properly, and (2) isolates a problem, if there is one.
SFI Light Source/Luminaire Service Manual |
Page 9 |
Section 2 |
Service |
System Set Up
Make sure the system is connected as follows:
1.Be sure that power is being provided by the wall outlet.
2.Be sure that the Lamp is installed properly.
3.Be sure that the cooling fan is turning when the unit is turned on.
4.The light source should produce a bright continuous white light with no flickering after a warm-up period of 5-15 seconds.
If any of these conditions do not occur, see the troubleshooting section.
Calibrations
Not Applicable
SFI Light Source/Luminaire Service Manual |
Page 10 |
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