Trouble Shooting - Pioneer DV-636D Service Manual

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7.1.2 TROUBLE SHOOTING

• No Power ON
• FL is not turned ON
• FL indication is unusual
START
Turn on the power again
after 2 - 3 minutes.
Is FL turn on ?
Yes
Is the indication
of FL normal ?
Yes
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L 13942296513
Is tray open ?
Yes
Do the video and
sound come on ?
Yes
OK
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• Blow out fuse of the primary side
Power ON
• Blow out micro-fuse on the POWER SUPPLY Assy. (Check the each voltage.)
• FL controller IC (IC101) on the FLKY Assy is damaged.
• Check the following connections :
No
• Check each voltage (EV+5V, SW+5V, SW+3.3V, +6V and +12V)
No
FL indication is dark or flickers.
Indicates the error message
• Blow out micro-fuse on the POWER SUPPLY Assy.
• Check the connection between LOSB Assy and DVDM Assy.
No
• Check the +6V power supply voltage (above micro fuse).
No
Check the connection between JCKB Assy and DVDM Assy.
Indicate the error message.
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8
(P611, P211, R711)
POWER SUPPLY Assy - DVDM Assy
DVDM Assy - FLKY Assy
FLKY Assy - PWSB Assy
(If above voltage are not supplied, check the micro-fuse.)
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3 6 7 1 3
(R711)
(12P flexible cable)
Refer to the section "7.1.3 ERROR CODE".
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2 9 9 4 2 8
• Short or open the zenner diode
on the POWER SUPPLY Assy.
(D513)
• Check the values of R118 - R120
on the FLKY Assy.
Refer to the section "7.1.3 ERROR CODE".
1 5 0 5 8 2 9 9 4
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DV-636D
9 9
2 8 9 9
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