Table of Contents
Advertisement
No energization of POWER circuit
Is POWER LED
lit?
YES
Green flashing: To 1 (Page 4-2)
Red flashing: To 2 (Page 4-2)
Green and red flashing: To 3 (Page 4-3)
Green lighting: To 4 (Page 4-3)
NO
Is the power plug correctly
connected to the wall outlet?
Is there AC 100V behind the
fuses F1 and F2?
1
Is there M+15V output at
Pin
of the PM connector?
Is there +5V output at Pin
of IC6805 (ANALOG PWB)?
Is there +5V output at Pin
of the PW connector?
Is there +5V output at Pin
of the PW connector?
Failure in POWER PWB
TROUBLE SHOOTING
NO
YES
NO
YES
NO
YES
2
NO
YES
5
NO
YES
3
NO
YES
Rearrange the power plug
connection correctly.
Fuses F1 and F2 have blown
out.
If the fuses blow out again after
replacement, the POWER unit
is out of order.
Disconnect the PM and PQ
connectors from one after an-
other. If there is M+14V output,
the circuit beyond the connec-
tors is out of order. If there is no
output, the POWER unit is out
of order.
Failure in SW2001 (CTL PWB)
and related circuits.
Failure in +5V line as far as
POWER PWB
Failure in peripheral area of
IC6800 (ANALOG PWB).
4-1
Advertisement
Table of Contents
