Epson TM-H6000 Service Manual page 163

Confidential
Fuses
TableD-17 Fuses
Fuse Function
Fuse F1 Main fuse, provided for safety purposes. Fuse may burn out
when input circuit is unsafe.
Make sure to use the same type of fuse when it is replaced.
Replace the fuse after eliminating the cause of the burn out.
Burn out may lead to a malfunction.
Fuse F2 Used to protect against unsafe circuit elements. It will burn out in
the event of a circuit board problem. The problem cannot be
corrected by replacing the fuse.
It may burn out due to an unsafe 24VC line. Replace the fuse
after eliminating the cause of the burn out. Burn out may lead to
a malfunction.
Fuse F3 Fuse provided for safety standard compliance. Does not relate
to operation. Will burn out for short of power line after DM
connection.
Fuse F4 Used to protect against unsafe circuit elements. It will burn out in
the event of a circuit board problem. The problem cannot be
corrected by replacing the fuse.
It may burn out due to an EP unit problem. Replace the fuse
after eliminating the cause of the burn out. Burn out may lead to
a malfunction.
Fuse R3 Used as safety protection for the logic power source circuit. It
may burn out due to a logic power circuit problem or excessive
VCC voltage. Replace the fuse after eliminating the cause of
the burn out. Burn out may lead to a malfunction.
Appendix D-72 Product Overview
Standard
R452003 Littelfuse inc
R451002 Littelfuse inc
SSFR-S2.0A-F002 SOC CO Ltd
ICP-S1.0 ROHM ELECTRONICS
RF73B2HTD0.51OHMJ KOA Corp.
Rev. A