Chapters Contents - Epson ET-4550 Service Manual

This manual, consists of the following chapters, is intended for repair service personnel and includes information This manual, consists of the following chapters, is intended for repair service personnel and includes information
necessary for properly performing maintenance and servicing the product. necessary for properly performing maintenance and servicing the product.
CH APTER CH APTER 1 1 . . TRO
Describes the step-by-step procedures for the troubleshooting. Describes the step-by-step procedures for the troubleshooting.
CH CH APTE APTE R 2
Describes the disassembly/reassembly procedures for main parts/units Describes the disassembly/reassembly procedures for main parts/units of the product, and provides the
standard operation time for servicing the product. standard operation time for servicing the product.
CH APTE CH APTE R 3
Describes the required adjustments for servicing the Describes the required adjustments for servicing the product.
CHAPTER 4 4 . . MAI CHAPTER
Describes maintenance items and procedures for servicing the product. Describes maintenance items and procedures for servicing the
CHAPTE R 5 CHAPTE
Provides the following additional information for reference: Provides the following additional information for reference:
Connector Diagram Connector Diagram
• •
Protection for Transportation Protection for Transportation
• •
Various symbols are used throughout this manual Various symbols are used throughout this manual either to provide additional information on a specific
to warn of possible danger present during a procedure or an action. Pay attention t to warn of possible danger present
used, and always read explanation thoroughly and follow the instructions. used, and always read explanation thoroughly and follow the i
Indicates an operating or maintenance procedure, practice or condition that, if Indicates an operating or maintenance procedure, practice or condition that, if not strictly observed,
could result in serious injury or loss of life. could result in serious injury or loss of life.
Indicates an operating or maintenance procedure, practice, or condition that, if not strictly observed, Indicates an operating or maintenance procedure, practice, or condition that, if not strictly observed,
could result in bodily injury, damage or malfunction of equipment. could result in bodily injury, damage or
May indicate an operating or maintenance procedure, practice or condition that is necessary to May indicate an operating or maintenance procedure, practice or condition that
accomplish a task efficiently. It may also provide additional information that is related to a specific accomplish a task efficiently. It may also provide additional information that is related to a specific
subject, or comment on the results achieved through a previous action. subject, or comment on the results
For Chapter 2 "Disassembly/Reassembly", symbols other than indicated above are used to show additional For Chapter 2 "Disassembly/Reassembly", symbols other than i
information for disassembly/reassembly. For the details on those symbols, see information for disassembly/reassembly. For the details on
Procedures Procedures (p37)" (p37)". .
About This Manual About This Manual
TROUBLE UBLE SHOO SHOOTI TI NG
R 2. . DI DI SAS SASSE SE MBLY / MBLY / RE
R 3. . ADJ ADJ US USTME TME NT NT
MAI NTENANCE NTENANCE
R 5. . APPENDI APPENDI X X
Sym Symb b o o ls ls Use
during a procedure or an action. Pay attention to all symbols when they are
NG
RE ASS ASSE E MBLY MBLY
product.
product.
Used d i i n n t t his his M M a a nu
either to provide additional information on a specific topic or
nstructions.
malfunction of equipment.
achieved through a previous action.
ndicated above are used to show additional
those symbols, see "2.3 Disassembly/Reassembly
of the product, and provides the
nua a l l
o all symbols when they are
not strictly observed,
is necessary to
"2.3 Disassembly/Reassembly
topic or
Confidential Confidential