Sharp DV-SL90UM Service Manual - Page 20

FLOW CHART NO.17, Refer to FLOW CHART NO.15 <The disc tray

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FLOW CHART NO.14 The disc tray cannot be opened and closed. (It can be done using the remote control unit.) No Is the normal control voltage inputted to Pin(4) of IC2001? Refer to "FLOW CHART NO.12" Yes Refer to "FLOW CHART NO.15" Replace the "OPEN/CLOSE" button (SW2108). FLOW CHART NO.15 The disc tray cannot be opened and closed. Replace the DVD Main CBA. No improvement can be found. No Yes Replace the DVD Mecha. FLOW CHART NO.16 [No Disc] indicated. (When the focus error occurs.) Original DVD Main CBA is poor. Replace the DVD Main CBA. No improvement can be found. Yes Replace the DVD Mecha. No Original DVD Main CBA is poor. FLOW CHART NO.17 [No Disc] indicated. (When the focus servo is not functioning.) Replace the DVD Main CBA. No improvement can be found. Yes Replace the DVD Mecha. No Original DVD Main CBA is poor. FLOW CHART NO.18 [No Disc] indicated. (When the laser beam does not light up.) Replace the DVD Main CBA. No improvement can be found. Yes Replace the DVD Mecha. No Original DVD Main CBA is poor. 1-8-4 E592ATS

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1-8-4
E592ATS
FLOW CHART NO.17
[No Disc] indicated. (When the focus servo is not functioning.)
FLOW CHART NO.18
[No Disc] indicated. (When the laser beam does not light up.)
Replace the DVD Main CBA.
Replace the DVD Mecha.
No
Yes
Replace the DVD Main CBA.
Replace the DVD Mecha.
No
Yes
No improvement can be found.
Original DVD Main CBA is poor.
No improvement can be found.
Original DVD Main CBA is poor.
FLOW CHART NO.16
[No Disc] indicated. (When the focus error occurs.)
Replace the DVD Main CBA.
No improvement can be found.
Original DVD Main CBA is poor.
Replace the DVD Mecha.
No
Yes
Yes
FLOW CHART NO.15
The disc tray cannot be opened and closed.
Replace the DVD Main CBA.
Original DVD Main CBA is poor.
Replace the DVD Mecha.
No improvement can be found.
No
Yes
FLOW CHART NO.14
The disc tray cannot be opened and closed. (It can be done using the remote control unit.)
Is the normal control voltage inputted to Pin(4) of
IC2001?
Refer to "FLOW CHART NO.12" <The key
operation is not functioning.>
Refer to "FLOW CHART NO.15" <The disc tray
cannot be opened and closed.>
Replace the "OPEN/CLOSE" button (SW2108).
No