49
DV-K303C
7.1.2 TROUBLE SHOOTING
• No Power ON
• FL is not turned ON
• FL indication is unusual
START
Is FL turn on ?
Is tray open ?
Is the indication
of FL normal ?
Power ON
Yes
Yes
Yes
No
No
No
Turn on the power again
after 2 - 3 minutes.
• Blow out fuse of the primary side
• Blow out micro-fuse on the POWER SUPPLY Unit. (Check the each voltage.)
(P211, R711)
• FL controller IC (IC101) on the FLKY Assy is damaged.
• Blow out micro-fuse on the POWER SUPPLY Unit.
(R711)
• Check the connection between TRADE Assy and DVDM Assy.
(13P flexible cable)
• Check the +6V power supply voltage (above micro fuse).
FL indication is dark or flickers.
Indicates the error message
Refer to the section "7.1.3 ERROR CODE".
Refer to the section "7.1.3 ERROR CODE".
Check the connection between KRJB Assy and DVDM Assy.
Indicate the error message.
• Check the following connections :
POWER SUPPLY Assy - DVDM Assy
DVDM Assy - FLKY Assy
FLKY Assy - PWSB Assy
• Check each voltage (EV+5V, SW+5V, SW+3.3V, +6V and +12V)
(If above voltage are not supplied, check the micro-fuse.)
• Short or open the zenner diode
on the POWER SUPPLY Unit.
(D513)
• Check the values of R118 on the
FLKY Assy.
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