Olympus CLH-SC User manual

MAINTENANCE MANUAL
CLH-SC

INTRODUCTION
Repairs ofthis product require high-grade special knowledge and technique.
We recommend to contact the Olympus agent in your country when product
Goes out oforder.
For remodeling or repairs to be done by the agent or person not authorized
by us, we will not warrant the product and not be liable for any result.

CONTENTS
1. SPECIFICATION OF PRODUCTS
2. DESCRIPTION OF BLOCK
3. CIRCUIT DIAGRAM
120V
220V
230V
240V
4. TROUBLESHOOTING
5. DISASSEMBLING PROCEDURE
6. EXPLODED PARTS DIAGRAM
7. PARTS LIST
1-1
2-1
3-1
3-2
3-3
3-4
4-1
5-1
6-1
7-1

PRODUCT SPECIFICATIONS
1. SPECIFICATION OF PRODUCTS
1. Features
The CLH-SC is a simple high intensity light source designed for use with a medical rigid scope or
an endoscope with an eyepiece ofthe same shape as of a medical rigidscope.
2. Specifications
Item
Specifications
Applicable
scope
and
light
guide
tion
function
Illumina
Type
of
scope
and
light
guide
Illumination
light
Brightness
adjustment
Light guide for rigid scope A3061, A3062, A3071, A3072, A3081, A3082, A3091, A3092,
A3093, A3094, A3095, A3096
Rigid scope
Rigid scope connectable with the light guides A3061, A3062,
A3071, A3072, A3081, A3082, A3091, A3092, A3093, A3094,
A3095, and A3096.
The others are not applicable.
Endoscope (with the same
eyepiece as that ofa rigid
scope)
CYF, CYF-2, URF, URF-2, URF-P2, HYF-P, HYF-1T, ENF-P,
ENF-L3, ENF-P4, ENF-XP, PF-14, PF-22, PF-28, LTF, LF-1,
LP-2, LP-P, LF-T, CHF-CB30
Illumination lamp
Symbol in Olympus: MD-151
Type: Halogen lamp 15 V/150 W
Manufacture: USHIO
Model: JCM15-150FP
Service life: Average 50 hours
Color temperature: 3250° K (published by the
manufacturer's catalog)
Method Manual adjustment by the brightness control on the front panel
(light path shielding diaphragm)
Cooling
Method Forced air cooling by a fan
1-1

PRODUCT SPECIFICATIONS
Item
Safety
Others
Laws and
regulations
applied
Cleaning
Using
conditions
Replaceable
parts
Others
For destinations
EU/EFTA
USA
Panel and outer casing
Classification of medical
instruments
Supply voltage
Supply voltage fluctuation
Power consumption
User service
Fuse
Dimensions
Weight
Panel
Power cord
Specifications
Applied laws and regulations, classifications, etc.
MDD
Class: I
CE marking
FDC law
UL mark/CUL mark
Clean with the gauze moistened with 70% ethyl alcohol, 70%
isopropyl alcohol or neutral cleanser. Dry sufficiently after
cleaning with alcohol.
100 V: BF type instruments
120V, 200V: BF type mounting units
Protection against an electrical shock: Class I instruments
100V, 120V, 220V, 230V, 240V (dependingon destinations)
±10% or less
100 V, 1.7 A
120V, 1.7 A
220/230/240 V, 1.0 A
Illumination lamp JCM15-150FP (MD-151)
Delay channel 250 V, 2 A
T2A 250 V
220 (W) x 290 (D) x 74 (H) mm (excluding the projections)
5kg
1 type
100/120 V: Cord set with a 3-core hospital grade plug
220/230/240 V: 3-core (plug-less) set
1-2

PRODUCT SPECIFICATIONS
3. Using Conditions
Use in medical facilities under the direction of doctor.
Don't use directly to the heart. (BF instrument)
Ground the outer casing for safety.
Don't use in an inflammable atmosphere.
Don't use with the following electronic devices.
a. Among the devices designed to apply medical treatment with electronics to a patient, those
which are not confirmed in safety when combined with the CLH-SC.
b. Among the devices not designed to apply medical treatment with electronics to a patient,
those which are not confirmed in safety such as a leakage current, etc.
Power supply
Rated voltage
Input power supply
Frequency
Voltage fluctuation
100 V
1.7 A
120V
1.7 A
220, 230, 240 V
1.7 A
50/60 Hz
±10%orless
Environmental conditions
Ambient temperature:
Relative humidity:
Atmosphericpressure:
1-3
10 - 40°C
30 - 80%
700 - 1060 hPa

4. Nomenclature
4-1. Front panel
PRODUCT SPECIFICATIONS
1. Power switch
Push the right side to turn on the unit. The switch lamp lights and the illumination lamp
(halogen) lights up.
2. Output connector
Supplies an illumination light to the scope and light guide cable connected.
3. Brightness control
Turn clockwise to increase brightness and counterclockwise to darken.
4-2. Rear panel
1. Fuse box
Contains the fuse to prevent a fire due to the light source or other danger when en error occurs.
2. Inlet
Connects the power cord.
1-4
1. Power switch
2. Output connector
3. Brightness control
1.Fusebox
2. Inlet

System Diagram
High intensity light
source unit
(CLH-SC)
PRODUCT SPECIFICATIONS
OES video system
(OTV-SC)
Endoscope
Rigid scope
Video adapter
Video monitor
for endoscope
OEV series
Video adapter
Light guide
1-5

DESCRIPTION OF BLOCK
2. DESCRIPTION OF BLOCK
1. Operation of Block
Operation of the CLH-SC is described using a block diagram (2-2).
Power supplied on the power cable is applied to the interlock switch through two fuses. The power
passing through the interlock switch is applied to the power switch on the front panel and is then sent
to the terminal block. The power is returned from the live side to the terminal block through the
thermo-fuse provided on the side of the power switch. The thermo-fuse operates to stop all functions
and avoid a danger when the fan stops, the air duct is blocked and the main body is abnormally heated.
The nominal operating temperature ofthe thermo-fuse is 117°C.
The power of 15 VAC for lighting the lamp is decreased by the transformer and is applied to the
secondary side to supply power to the lamp. The DC fan is supplied with the power that is obtained by
rectifying the lamp power supply by a diode and then smoothing by a capacitor. The transformer is
provided with a thermo-fuse of 135°C to prevent overheat, but the fuse can not be replaced. If the fuse
blows, the transformer must be replaced. This power supply circuit is provided on the UPCH10 board.
A branch from the transformer to the lamp socket, a fan rectifying/smoothing circuit and two
connectors to supply power to the fan are provided.
2-1

2-2
DESCRIPTION
OF
BLOCK
UNIT NAME
BLOCK DIAGRAM
MODEL
CLH-SC

3.
CIRCUIT
DIAGRAM
CIRCUIT
DIAGRAM
3-1
UNIT NAME
120V
DATE
99-01
MODEL
CLH-SC
PAGE
1/4
120V

3-2
220V
CIRCUIT
DIAGRAM
UNIT NAME
220V
DATE
99-01
MODEL
CLH-SC
PAGE
2/4

CIRCUIT DIAGRAM
3-3
230V
UNIT NAME
230V
DATE
99-01
MODEL
CLH-SC
PAGE
3/4

CIRCUIT
DIAGRAM
3-4
240V
UNIT NAME
240V
DATE
99-01
MODEL
CLH-SC
PAGE
4/4

TROUBLESHOOTING
4. TROUBLESHOOTING
Symptoms
1. Power is not supplied.
2. The lamp does not light at all, burns out soon or turns off after once turning on.
3. The fan does not work.
4. Brightness is insufficient.
5. Light can not be controlled.
4-2
4-3
4-4
4-5
4-6
4-1

TROUBLESHOOTING
[Symptom: Power is not supplied.]
The supply voltage is abnormal,
or the power cord is defective.
The interlock switch is
defective.
The power switch is defective.
The thermo-fuse is broken.
The transformer is defective.
4-2
Start
Is power provided at
the inlet?
Is power provided in the
input side of the power
switch?
Is power provided in the
output side ofthe power
switch?
Is the thermo-fuse
conducting?
Is the voltage at the
terminals E1 and E3 of
UPCH10U15VAC?
Check conduction of the wires and
connection ofthe terminals and
connectors.
End
NO
NO
NO
NO
NO

TROUBLESHOOTING
[Symptom: The lamp does not light at all, burns out soon or turns off after once
turning on.]
Measure the voltage applied to
the lamp (with the lamp
connected).
100Vclass 15V±0.75V
200 V class 14.6 V±0.75 V
YES
Replace the lamp, and
age it for a while.
Check the voltage
supplied to the
transformer.
The transformer is defective.
(Replace the transformer)
Connectpowerthat
meets the rating.
Replace the lamp socket.
Check connection of the
terminals and boards, and
check the state ofthe harness.
End
4-3
Start
Is the lamp burnt?
Is the lamp burnt
soon?
Does the voltage meet
the standard?
Does the voltage meet
the rating?
Is the contact ofthe lamp
socket deteriorated?
NO
YES YES
NO
YES
YES

TROUBLESHOOTING
[Symptom: The fan does not work.]
Only one fan works.
Change connectionof
the connectors.
Check the voltage applied to
the fan.
Check wiring and connection
of the connectors.
The fan is defective
(onefan).
The fan is defective.
Measure the voltage applied to
the lamp (with the lamp
connected).
100 V class 15 V±0.75V
200 V class 14.6 V±0.75V
* The rated voltage of the fan is 24 V
DC, but the fan works normally if the
supply voltage is in the operating
range of10 - 27.6VDC.
The power supply board UPCH10U
is defective. (diode/capacitor)
Check wiring and connection of the
connectors.
4-4
Start
Do the both two fans
work?
Do the fans work?
Isl6.5±0.75VDC
applied?
Does the applied voltage
meet the rating?
NO
YES
YES
YES
NO

[Symptom: Brightness is insufficient.]
TROUBLESHOOTING
Start
Check the lamp for
deterioration (darkness).
Measure the voltage applied to
the lamp (with the lamp
connected).
100 V class 15 V±0.75 V
200 V class 14.6 V±0.75 V
Replace the lamp.
Mount the lamp correctly.
Check the supply voltage.
Connect power that
meets the rating.
4-5
Is the lamp normal?
Is the lamp correctly
mounted?
Does the applied
voltage meet the
rating?
Is the mechanical iris
normal?
Does the supply
voltage meet the
rating?
The transformer is defective.
Replace the lamp. Repair the mechanical iris.
NO
NO
NO
NO
NO

[Symptom: Light can not be controlled.]
TROUBLESHOOTING
Start
Check to see if the control
knob on the front panel
makes idle rotation?
Check the structures of the
mechanicaliris and others.
Tighten the ACU screw
to fix the control.
Check to see if the shaft
is caught by the stopper
screw?
Replace the mechanical
iris unit.
4-6
Does the control
rotate idly?
Does the shaft rotate?
Does the mechanical
iris work?
End
YES
NO
NO