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Troubleshooting
Chart 1. Printer Dead at Power On
0
START
NO
I
Use correct AC
voltage.
(No
fluctuation from
AC range shown
at left is
permitted.
No
No
No
Dower
on,
does
the new
I
(+35
V)
at oin 10 I
Measure the VP
(+35
V)
at pin 10
of
CM2
on the
C076
PSR
board assembly.
1
“;e;c;dhe
board assembly.
I
board.
Measure the
VL
(+5
VI
at pin 1
of
CM2
on the
C076
PSR
No
A
*
Is
the
output
No
vo I tage
Q
norma
I
1
Yes
Disconnect
CM14
and check the
power supply
voltages out of
circuit
at
pin 10 and pin 1.
board assembly.
END
v
END
v
Epson
FX-870/1170
3-9