Welch Allyn 880000, 88002, 88004, 88006 User manual
SERVICE MANUAL
Women's Health
Operation Manual
Part No. 880220 1-800-535-6663
Video Colposcope
Models:
Vertical Pole: 880000, 88002, 88004, 88006
Swing Arm: 89000, 89002, 89004, 89006
™
Welch Allyn, Inc.
4341 State Street Road
P.O. Box 220
Skaneateles Falls, NY 13153-0220
Telephone: 315-685-4100
Part No Rev Description ECN # Date Initiator
880220 A New Release 5-35922 7/97 R.Settembre
DRAWINGS AND/OR ILLUSTRATIONS AND/OR PART NUMBERS CONTAINED IN
THIS DOCUMENT ARE FOR REFERENCE PURPOSES ONLY! FOR CURRENT
REVISIONS CALL WELCH ALLYN.
i
Table of Contents
Help Information ...........................................................................................................iii
Section 1: General Information ................................................................................ 1-1
1.1 General Precautions and Symbols ................................................................ 1-2
1.2 Summary of Warnings and Cautions ............................................................. 1-3
1.3 Basic System Description.............................................................................. 1-4
1.4 Product and Repair Bill Numbers .................................................................. 1-5
1.5 Recommended Initial Settings for Monitor.............................................. 1-6, 1-7
1.6 Cleaning ........................................................................................................ 1-8
Section 2: Service...................................................................................................... 2-1
2.1 Bench Test.............................................................................................. 2-2, 2-3
2.2 Required Tools............................................................................................... 2-4
2.3 Camera Alignment Information........................................................ 2-5, 2-6, 2-7
2.4 Hipot and Leakage Current Testing ............................................................... 2-8
Section 3: Problem Solving ...................................................................................... 3-1
3.1 Troubleshooting ............................................................................................. 3-2
Section 4: Disassembly and Repair ......................................................................... 4-1
4.1 Stand Alone Colposcope Disassembly Sequence......................... Photos 1- 37
4.2 Reference Photos for Reassembly ................................................ Photos 38-46
4.3 Handle Disassembly...................................................................... Photos 47-49
4.4 Pole Clutch Replacement .............................................................. Photos 50-52
4.5 Camera Alignment Procedure ....................................................... Photos 53-58
4.6 Power Supply ................................................................................ Photos 59-60
Section 5: Repair Parts Reference Drawings and Interconnect Diagrams
5.1 Stand Alone Colposcope Repair Parts and Drawing References. (5 pages)
5.2 Drawings
5.3 Interconnect Diagrams
ii
Help Information:
¡ 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.
¡ Customers in North America should return instruments requiring service to the Welch Allyn
Technical Service Department list below, or to an authorized Welch Allyn distributor.
Technical Service Department
Welch Allyn, Inc.
4341 State Street Road
Skaneateles Falls, NY 13153-0220
U.S.A.
Telephone: 800-535-6663
Fax: 315-685-4653
¡ Customers outside of North America should return their units to a local, authorized
Welch Allyn distributor, or to their nearest Welch Allyn service center. The part and
serial numbers are located on the housing of the colposcope near the fan. Remove
the colposcope from the handle to locate these numbers.
¡ Troubleshooting assistance is contained in Section 3 of this manual.
¡ Please read and understand Colposcope Users Manual P/N 880136, and all peripheral
equipment users manuals.
iii
Thank you for purchasing the Welch Allyn Video Colposcope. Follow the operation
and maintenance instructions found in this manual and your video colposcope will
provide you with many years of reliable service. Please read these instructions thoroughly before attempting to use your new video colposcope.
CAUTION: Federal law restricts sale of this device to, or to the order of,
!
!
IMPORTANT: The material outlined in this manual should be reviewed and understood
prior to operation of the equipment.
NOTE: This equipment has been tested and complies with emissions standard
EN60601-1-2: 1993, CISPR Publication 11:1990/EN55011: 1991 for Radiated and
Conducted Emissions, Group 1, Class B.
a physician or other appropriately licensed medical professional.
WARNING: Users of this equipment should be thoroughly trained in the
appropriate medical procedures. Furthermore, they should take the
time to read and understand these instructions before performing any
procedure. They should also read and understand the instructions for
any other equipment used in conjunction with the video colposcope
(i.e. electrosurgical generators). Failure to do so may result in injury to
the patient and/or damage to the video colposcope.
This equipment also has been tested and complies with susceptibility standards to
electrostatic discharge (ESD), radiated electromagnetic fields, fast transient bursts, and
conducted surge interference. The procedures and criteria for conformance are contained in IEC801-2, 801-3, 801-4, 801-5, and EN60601-1-2: 1993.
In addition, this equipment has been tested and complies with EN6000-3-2 (1st Edition)
covering harmonic disturbances in supply systems caused by household appliances and
similar electrical equipment, Part 2, and EN 6000-3-3 (1st Edition) covering voltage
fluctuation disturbances in supply caused by household appliances and similar electrical
equipment Part 3.
INDICATIONS FOR USE: For examination of the tissues of the vagina, cervix, and
external genitalia, to investigate, by means of magnification, abnormal cervical cytology
or suspicious lesions of the lower female genital tract. Also used for corresponding
biopsy and treatment, when indicated.
NOTE: This device complies with the guidelines of the American Conference of Governmental Industrial Hygienists threshold limits values for ultraviolet radiation for exposure
time and distance consistent with the intended use of this device.
iv
General Information
1.1 General Precautions and Symbols
1.2 Summary of Warnings and Cautions
1.3 Basic System Description
1.4 Product Numbers and Descriptions
1.5 Recommended Initial Settings for Monitor
1.6 Cleaning
Section 1
Stand Alone Colposcope Service Manual Page 1 - 1
1.1 General Precautions and Symbols
General Precautions
For safety, the video colposcope should only be coupled to a grounded 110-120VAC hospital-grade outlet (220-240
volt, 50 cycle international).
The video colposcope should not be operated in the presence of flammable or explosive gases or chemicals, or
installed in areas where these materials are commonly used.
To avoid overheating, the video colposcope should not be positioned closer than 6" to any wall.
Keep all liquids away from electrical equipment to avoid the possibility of shock and instrument damage.
Occasionally inspect the power cord for signs of cuts, abrasions or dents.
The video colposcope should never be stored or operated in areas where it could get wet or could be exposed to any
environmental conditions like extreme temperature or humidity, direct sunlight, dust, etc.
The lamp is extremely bright. DO NOT stare directly into illumination lens when the lamp is lit.
All service to the video colposcope must be performed by Welch Allyn or by an authorized repair center.
Video colposcope user should adhere to the operating conditions found in this manual. Otherwise, instrument
damage may occur and/or operator/patient safety may be comprised.
There are no user serviceable parts (other than the lamp and fuses) in this unit or in its accessories. Any attempt to
disassemble and/or repair this unit will result in voiding of the warranty.
Stand Alone Colposcope Service Manual Page 1 - 2
1.2 Summary of Cautions and Warnings
Stand Alone Colposcope Service Manual Page 1 - 3
1.3 Basic System Description
The Stand Alone version is not a Video Path product and does not require a light source.
It is a camera and light source in one compact housing mounted on either a vertical pole
stand or a swing arm stand as shown in Figure 1. The table on Page 1- 6 is a list of
product numbers and repair bill numbers. It also lists the product numbers for the camera units only.
Fig. 1
Stand Alone Colposcope Service Manual Page 1 - 4
1.4 Product Numbers and Descriptions
Product Number Repair Bill # Description/Format Market
(Burned-in & aligned camera)
88000 (88021 Camera/Pole 88021 Repair Vertical Stand with RS232 NTSC U.S.
with a 49555 Base) (Camera/Pole repair Camera Unit is PN 880080-501
bill)
88002 (88022 Camera/Pole 88022 Repair Vertical Stand with RS232 PAL Europe
with a 49555 Base) (Camera/Pole repair Camera Unit is PN 880080-502
bill)
88004 (88024 Camera/Pole 88024 Repair Vertical Stand with RS232 Pal United
with a 49555 Base) (Camera/Pole repair Camera Unit is PN 880080-502 Kingdom
bill)
88006 (88026 Camera/Pole 88026 Repair Vertical Stand with RS232 PAL Australia
with a 49555 Base) (Camera/Pole repair Camera Unit is PN 880080-502
bill)
89000 (89021 89021 Repair Swing Arm with RS232 NTSC U.S.
Camera/Swing Arm with a (Camera/Swing Arm Camera Unit is PN 880080-501
89050 Pole and a 89555 repair bill) (reposition toe clip for swing arm
Base) (3 cartons) attachment)
89002 (89022 89022 Repair Swing Arm with RS232 PAL Europe
(Camera/Swing Arm with a (Camera/Swing Arm Camera Unit is PN 880080-502
89050 Pole and a 89555 repair bill) (reposition toe clip for swing arm
base) (3 cartons) attachment)
89004 (89024 89024 Repair Swing Arm with RS 232 PAL United
Camera/Swing Arm with a (Camera/Swing Arm Camera Unit is PN 880080-502 Kingdom
89050 Pole and a 89555 repair bill) (reposition toe clip for swing arm
base) (3 cartons) attachment)
89006 (89026 89026 Repair Swing Arm with RS232 PAL Australia
Camera/Swing Arm with a (Camera/Swing Arm Camera Unit is PN 880080-502
89050 Pole and a 89555 repair bill) (reposition toe clip for swing arm
base) (3 cartons) attachment.)
89050 Repair Pole, Swing Arm Packaged
(repair bill for the
swing arm pole)
Stand Alone Colposcope Service Manual Page 1 - 5
1.5 Recommended initial settings and connections for
Sony PVM-1350 Monitor
Stand Alone Colposcope Service Manual Page 1 - 6
Factory “Default” Settings of Monitor:
Refer to PG 5 of Sony PVM-1350 Operating Instructions for complete details.
Menu Item Number:
1 Main Menu follow instructions
2 Chroma Set up menu Setting is OFF
3 Caption Vision menu Setting is OFF
4 User Config 1 menu follow instructions
5 User Config 2 menu follow instructions
6 Auto Adjust screen follow instructions
7 Color System Display menu setting is AUTO
8 V Hold Screen adjust only if necessary
9 RGB SYNC menu setting is SYNC ON G
10 NTSC Setup Level menu setting is 7.5
11 Language Menu setting is ENGLISH
Stand Alone Colposcope Service Manual Page 1 - 7
Description: Default Factory Setting:
1.6 Cleaning
Stand Alone Colposcope Service Manual Page 1 - 8
Service
2.1 Bench Test
2.2 Required Tools
2.3 Camera Alignment Procedure
2.4 Hi-Pot and Leakage Current Testing
Section 2
Stand Alone Colposcope Service Manual Page 2 - 1
2.1 Bench Test
Bench Checks of the Stand Alone Video Colposcope
Perform the following functional checks of the colposcope when it is received for service
and after repair: Perform Video Colposcope cleaning per page 16 of Welch Allyn Video
Colposcope User’s Manual pn 880136 (reprinted in this service manual in Section 1.)
1 Perform physical examination of returned colposcope and accessory cables,
cords etc.
A) Make record of what components were received. Note serial numbers
where applicable.
B) Check the physical and electrical condition of all items including S-video
cables, power cords, RS232 cables, all pins and sockets.
C) Check the lamp connector. The lamp has a small and a large pin. Make
sure the lamp socket has not been ruined by someone connecting the
connector in reverse. This would damage the connector and make lamp
operation intermittent.
Connectors must fit lamp pins securely.
2 Connect Colposcope to monitor, and or other system components such as Video
Printerand perform test of colposcope functions listed below:
A Lamp
B Fan
C Lamp door micro switch safety function.
door. If lamp lights, then micro switch(s) are stuck or defective.
D Colposcope attachment
E Colposcope functions
unit to stabilize and focus. The camera will stabilize at zoom (-).
F Focus:
G Check video picture quality:
colors on the monitor are (visual reference) the same as the bar chart.
Verify that the image is free from any visible video noise.
H Check green filter operation:
into an out of the green filter mode. It will stay slighted while the green filter is on.
I Check the Light Director movement.
in three positions: 45 degrees left, right and back to center. Check the
projected spot for uniformity and no dark spots.
Stand Alone Colposcope Service Manual Page 2 - 2
operation
operation
Try to run unit without lamp
to pole or swing arm.
...allow approximately 10 seconds for the camera
Check focus, zoom
view a color bar chart and verify that the
the green filter led should flash as it changes
It should move freely and detent
3 Check all mechanical fasteners for tightness.
Check all cords and cables for solid connections, (wiggle the connectors and
cords while the colposcope is operating and look for any breaks or static on the
monitor.)
4 Check the printer functions of the colposcope handle.
Verify
that the “F” button will freeze the live image as displayed on the monitor or
three beeps from the printer and “No Paper” text appears on the monitor and printer.
Verify
that the “C” button will print the frozen image displayed on the monitor.
Verify
that the “V” button will cause the monitor to alternately display the live
video then the still “frozen” image.
5 Check the stands (swing arm, and vertical pole, casters) for function and smooth
operation. Check the brakes...(Do they hold?)
6 Check lenses for scratches, fingerprints, smudges, dust, moisture.
Stand Alone Colposcope Service Manual Page 2 - 3
2.2 Required List of Tools
1) Torx T-15 Driver for housing screws.
2) English Hex Key set for various hex head fasteners
3) One extra hex key
4) RS232 Interface Cable Welch Allyn order number 88500
5) Strap Wrench T-10913
6) Achromatic Lens Assembly Tool - T-14716
You must order the following to check out the Colposcope
Monitor: Service Equipment should include a monitor for your standard. This is
a Sony PVM 1350 (NTSC) or a Sony PVM-1450 QM (PAL).
Note: this is not an underscan monitor as is the Sony PVM-1351Q
AC120V 50/60Hz (NTSC/PAL/SECAM)
Printer:
1800MD (NTSC) or a Sony VP-1800 EPM (PAL).
Standard electronic hand tools and Digital Volt Ohm Meter will be required for basic
troubleshooting such as checking output voltages and continuity.
To check the RS232 functioning of the Colposcope. This is a Sony VP-
Stand Alone Colposcope Service Manual Page 2 - 4
2.3 Camera Alignment Information
The information below is intended for those who wish to know how the camera is calibrated:
Sony Cameras Welch Allyn PN 880057 (NTSC) and PN 880057-1 (PAL) are processed
during manufacturing as follows:
Photo 1:
1. Camera is received from Sony with accessory connectors in a bag (background).
2. Camera has a small circuit board (upper left) attached by two small metric screws.
Camera as received from Sony
Before installing Sony Cameras Welch Allyn PN 880057 (NTSC) and PN 880057-1
(PAL) into a Colposcope camera chassis perform the following steps:
● Discard bag of connectors and remove and discard circuit board.
● Camera is now ready to be installed in chassis and have calibration (vignetting)
checked.
● Follow camera vignetting checking / calibration process described in Section 4
Photos 53 through 58.
Stand Alone Colposcope Service Manual Page 2 - 5
The test equipment required for checking and adjusting camera calibration (vignetting)
is shown below:
Call Welch Allyn for ordering details.
Camera Calibration (Vignetting) Equipment including: “Sony RE-95
Remote Commander for Adjustment,” suitable printers, and a Sony
PVM-1351Q AC 120 V 50/60 Hz Color Monitor
Stand Alone Colposcope Service Manual Page 2 -6
2.3 Camera Alignment Information
Calibration of the Stand Alone Colposcope Camera:
A convenient service strategy regarding camera calibration is to stock one or two Colposcope Sub Assemblies (NTSC Colposcope Sub Assembly PN 880080-501, or PAL
Colposcope Sub Assembly PN 880080-502.) These Colposcope Sub Assemblies are
used as exchange units if a camera failure occurs. Exchange a failed Colposcope Sub
Assembly with a factory calibrated Colposcope Sub Assembly which has had Camera
Alignment Procedure performed at the factory.
This eliminates the need for calibration equipment at your facility. The camera alignment
procedure itself takes only six minutes, but requires additional equipment such as the
handheld remote control called a “Sony Remote Commander for Adjustment” and a
Sony Underscan monitor (for example, a Sony PVM-1351Q AC 120V 50/60 Hz Color
Monitor.) To switch vertical pole type mount to swing arm type mount, simply re-position
the toe piece. There is enough information in this manual to elect to equip your service
center with the necessary equipment and training to perform the alignment procedure.
But an Underscan monitor would have to be purchased instead of a non-Underscan
monitor.
The exchange process:
If a colposcope fails due to a failed camera follow the steps below:
● Your technician tests/diagnoses returned colposcope and determines failure is
due to bad camera.
● Technician removes the camera assembly (camera and chassis assembly) from
the customer’s housings and installs the factory aligned/burned-in camera
assembly from the exchange unit.
● The original housings maintain serialization for repaired colposcope. The unit is
tested and returned to owner.
● The failed Colposcope Sub Assembly is returned to Welch Allyn Medical Division
Technical Service Department, State Street, where the camera will be replaced
and calibrated. It will be returned to your depot parts inventory.
Stand Alone Colposcope Service Manual Page 2 - 7
2.4 Hi-Pot and Leakage Current Testing
Hi-Pot and current leakage tests:
When electrical components have been changed, or if there is any reason
to believe that the unit will not meet safety specifications for HI-POT and
Leakage current, it is advisable to check HI-POT and Leakage current. If the
unit fails these tests, replace the faulty component(s) and re-test.
HI-POT Mains to ground specifications.
With the power switch to the “ON” position, the unit must withstand:
1.5KVAC for 1 second.
Leakage current test specifications.
Input voltage: 115 +/- 5 vac 60Hz
Turn the colposcope unit power switch to the “ON” position.
Verify lamp function- lamp is on.
Touch leakage probe of the tester to the following parts of the stands:
-Vertical pole model: Phillips screw on vertical pole (aluminum pole).
-Swing arm model: socket head cap screw at connection of horizontal arm to pole.
The leakage current shall not exceed 100 micro Amperes. ( .0001 Amps)
When testing in 230 volt countries, the unit must still adhere to the 100
micro Ampere limit on leakage current.
Stand Alone Colposcope Service Manual Page 2 - 8
Problem Solving
3.1 Troubleshooting
Section 3
Stand Alone Colposcope Service Manual Page 3 - 1
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