AR-285 (serv.man48). IMPROVEMENT MADE TO PREVENT MALFUNCTION CAUSED BY IMPERFECT CONTACT ON FIXING JUNCTION PWB. — Sharp Copying Equipment Technical Bulletin (repair manual)

Model
AR-285 (serv.man48)
Pages
1 Few pages! See other manuals at the bottom of the first or last page.
Size
106.03 KB
Type
PDF
Document
Technical Bulletin
Brand
Device
Copying Equipment / IMPROVEMENT MADE TO PREVENT MALFUNCTION CAUSED BY IMPERFECT CONTACT ON FIXING JUNCTION PWB.
File
ar-285-sm48.pdf
Date

View Sharp AR-285 (serv.man48) Technical Bulletin online

2/2
IMPROVEMENT MADE TO PREVENT MALFUNCTION CAUSED
BY IMPERFECT CONTACT ON FIXING JUNCTION PWB.
It was found in the field that the soldered section of the FASTON terminal on the Fusing
Interface PWB was cracked, causing a malfunction (H4, etc.). This is to inform you of the
countermeasures taken to solve this problem.
To prevent this problem from occurring, replace the Fusing Interface PWB at the earliest
opportunity such as periodical inspection, maintenance work or a service call.
AR-250/280/285/286/287/335/336/337/405/407/505/507
The soldered section is cracked due to stress produced when the tab terminal is
connected/disconnected. As a result, imperfect contact occurs at the section due to thermal
stress produced during operation, causing a malfunction.
To reinforce the PWB, the material of the Interface harness PWB is changed to a glass fiber
filled double-sided PWB, and soldering is performed on the front and rear sides by making a
through hole.
CPWBF1299FC51
CPWBN1615FC51
(For the field)
This issue affects all “Cougar” models from 1
st
 production.
The PWB must be replaced during the next service call or at the earliest opportunity.
Please notify us of the total number of these models that you have in the field.
We will supply you with free of charge replacement PWBs  for this action.
Please contact us regarding this matter, by email at 
, using the
subject header  - Interface PWB
1/1
1.General:
2.Model Name:
3.Cause:
4.Description:
5.Action:
SHARP CORPORATION 
Document Systems Division
BA
TECHNICAL BULLETIN
Date:
07 February 2005
Model: 
AR-285
Ref.:
127
Colour: Yellow
Page:
1 of 1
2/2
IMPROVEMENT MADE TO PREVENT MALFUNCTION CAUSED
BY IMPERFECT CONTACT ON FIXING JUNCTION PWB.
It was found in the field that the soldered section of the FASTON terminal on the Fusing
Interface PWB was cracked, causing a malfunction (H4, etc.). This is to inform you of the
countermeasures taken to solve this problem.
To prevent this problem from occurring, replace the Fusing Interface PWB at the earliest
opportunity such as periodical inspection, maintenance work or a service call.
AR-250/280/285/286/287/335/336/337/405/407/505/507
The soldered section is cracked due to stress produced when the tab terminal is
connected/disconnected. As a result, imperfect contact occurs at the section due to thermal
stress produced during operation, causing a malfunction.
To reinforce the PWB, the material of the Interface harness PWB is changed to a glass fiber
filled double-sided PWB, and soldering is performed on the front and rear sides by making a
through hole.
CPWBF1299FC51
CPWBN1615FC51
(For the field)
This issue affects all “Cougar” models from 1
st
 production.
The PWB must be replaced during the next service call or at the earliest opportunity.
Please notify us of the total number of these models that you have in the field.
We will supply you with free of charge replacement PWBs  for this action.
Please contact us regarding this matter, by email at 
, using the
subject header  - Interface PWB
1/1
1.General:
2.Model Name:
3.Cause:
4.Description:
5.Action:
SHARP CORPORATION 
Document Systems Division
BA
TECHNICAL BULLETIN
Date:
07 February 2005
Model: 
AR-285
Ref.:
127
Colour: Yellow
Page:
1 of 1
2/2
IMPROVEMENT MADE TO PREVENT MALFUNCTION CAUSED
BY IMPERFECT CONTACT ON FIXING JUNCTION PWB.
It was found in the field that the soldered section of the FASTON terminal on the Fusing
Interface PWB was cracked, causing a malfunction (H4, etc.). This is to inform you of the
countermeasures taken to solve this problem.
To prevent this problem from occurring, replace the Fusing Interface PWB at the earliest
opportunity such as periodical inspection, maintenance work or a service call.
AR-250/280/285/286/287/335/336/337/405/407/505/507
The soldered section is cracked due to stress produced when the tab terminal is
connected/disconnected. As a result, imperfect contact occurs at the section due to thermal
stress produced during operation, causing a malfunction.
To reinforce the PWB, the material of the Interface harness PWB is changed to a glass fiber
filled double-sided PWB, and soldering is performed on the front and rear sides by making a
through hole.
CPWBF1299FC51
CPWBN1615FC51
(For the field)
This issue affects all “Cougar” models from 1
st
 production.
The PWB must be replaced during the next service call or at the earliest opportunity.
Please notify us of the total number of these models that you have in the field.
We will supply you with free of charge replacement PWBs  for this action.
Please contact us regarding this matter, by email at 
, using the
subject header  - Interface PWB
1/1
1.General:
2.Model Name:
3.Cause:
4.Description:
5.Action:
SHARP CORPORATION 
Document Systems Division
BA
TECHNICAL BULLETIN
Date:
07 February 2005
Model: 
AR-285
Ref.:
127
Colour: Yellow
Page:
1 of 1
2/2
IMPROVEMENT MADE TO PREVENT MALFUNCTION CAUSED
BY IMPERFECT CONTACT ON FIXING JUNCTION PWB.
It was found in the field that the soldered section of the FASTON terminal on the Fusing
Interface PWB was cracked, causing a malfunction (H4, etc.). This is to inform you of the
countermeasures taken to solve this problem.
To prevent this problem from occurring, replace the Fusing Interface PWB at the earliest
opportunity such as periodical inspection, maintenance work or a service call.
AR-250/280/285/286/287/335/336/337/405/407/505/507
The soldered section is cracked due to stress produced when the tab terminal is
connected/disconnected. As a result, imperfect contact occurs at the section due to thermal
stress produced during operation, causing a malfunction.
To reinforce the PWB, the material of the Interface harness PWB is changed to a glass fiber
filled double-sided PWB, and soldering is performed on the front and rear sides by making a
through hole.
CPWBF1299FC51
CPWBN1615FC51
(For the field)
This issue affects all “Cougar” models from 1
st
 production.
The PWB must be replaced during the next service call or at the earliest opportunity.
Please notify us of the total number of these models that you have in the field.
We will supply you with free of charge replacement PWBs  for this action.
Please contact us regarding this matter, by email at 
, using the
subject header  - Interface PWB
1/1
1.General:
2.Model Name:
3.Cause:
4.Description:
5.Action:
SHARP CORPORATION 
Document Systems Division
BA
TECHNICAL BULLETIN
Date:
07 February 2005
Model: 
AR-285
Ref.:
127
Colour: Yellow
Page:
1 of 1
2/2
IMPROVEMENT MADE TO PREVENT MALFUNCTION CAUSED
BY IMPERFECT CONTACT ON FIXING JUNCTION PWB.
It was found in the field that the soldered section of the FASTON terminal on the Fusing
Interface PWB was cracked, causing a malfunction (H4, etc.). This is to inform you of the
countermeasures taken to solve this problem.
To prevent this problem from occurring, replace the Fusing Interface PWB at the earliest
opportunity such as periodical inspection, maintenance work or a service call.
AR-250/280/285/286/287/335/336/337/405/407/505/507
The soldered section is cracked due to stress produced when the tab terminal is
connected/disconnected. As a result, imperfect contact occurs at the section due to thermal
stress produced during operation, causing a malfunction.
To reinforce the PWB, the material of the Interface harness PWB is changed to a glass fiber
filled double-sided PWB, and soldering is performed on the front and rear sides by making a
through hole.
CPWBF1299FC51
CPWBN1615FC51
(For the field)
This issue affects all “Cougar” models from 1
st
 production.
The PWB must be replaced during the next service call or at the earliest opportunity.
Please notify us of the total number of these models that you have in the field.
We will supply you with free of charge replacement PWBs  for this action.
Please contact us regarding this matter, by email at 
, using the
subject header  - Interface PWB
1/1
1.General:
2.Model Name:
3.Cause:
4.Description:
5.Action:
SHARP CORPORATION 
Document Systems Division
BA
TECHNICAL BULLETIN
Date:
07 February 2005
Model: 
AR-285
Ref.:
127
Colour: Yellow
Page:
1 of 1

Download Sharp AR-285 (serv.man48) Technical Bulletin

Here you can view online or download Sharp AR-285 (serv.man48) Technical Bulletin in pdf. This Technical Bulletin can help you recover, restore, fix, disassemble and repair Sharp AR-285 (serv.man48) Copying Equipment. Information contained in Sharp AR-285 (serv.man48) service manual (repair manual) typically includes:

  • Disassembly, troubleshooting, programming, maintenance, remote, adjustment, installation and setup instructions.
  • Schematics, wiring and block diagrams.
  • Printed wiring boards (PWB) and printed circuit boards (PCB).
  • Parts list (bill of materials).