Trouble Shooting - Pioneer XV-DV88 Service Manual

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3 7 63 1515 0

7.1.4 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
TE
L 13942296513
Is tray open ?
Yes
Spindle
does not turn.
Carriage does
not move.
Yes
Laser diode
does not light.
Focus does
not in.
Yes
Do the video and
www
sound come on ?
Yes
.
OK
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Power ON
• Check the POWERED SUBWOOFEER.
• Blow out micro-fuse on the MOTHER Assy. (Check the each voltage.)
• FL Driver IC (IC5661) on the FLDP 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 MOTHER Assy.
• Check the following connections :
No
• Check the +6V and +12V power supply voltage
• Check the following connections :
No
• Check the +6V and +12V power supply voltage
• Check the following connection :
No
• Check the +6V and +12V power supply voltage and SW+5V
• Check it whether the pickup is defectiveness.
No
Check the connection between MOTHER Assy and DVDM Assy.
x ao
y
i
Indicate the error message.
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8
(IC8001-IC8003)
DVDM Assy - TRADEL Assy - SIDEL Assy - MOTHER Assy
DVDM Assy - TRADER Assy - SIDER Assy - MOTHER Assy
SIDEL Assy - DISPLAY UNIT
(If above voltage are not supplied, check the micro-fuse IC8001-IC8003.)
Q Q
3 6 7 1 3
(IC8001-IC8003)
DVDM Assy - LOAB Assy (5P connector assy)
DVDM Assy CN251 (INSIDE SW signal)
(If above voltage is not supplied, check the micro-fuse IC8001-IC8003.)
DVDM Assy - Spindle motor (12P flexible cable)
DVDM Assy - Stepping motor (4P flexible cable)
(If above voltage is not supplied, check the micro-fuse IC8001-IC8003.)
DVDM Assy - Pickup Assy (26P flexible cable)
(If +6V voltage is not supplied, check the micro-fuse P101 and P102.)
Perform the section "7.1.1 Self-Diagnostic Function of Pickup Defective"
and check the LD current value.
u163
.
Refer to the section "7.1.5 ERROR CODE".
XV-DV88, XV-DV77
2 9 9 4 2 8
• Short or open the zenner diode
on the SIDEL Assy.
(D5053)
• Check the values of R5051,R5052
on the SIDEL Assy.
Refer to the section "7.1.5 ERROR CODE".
1 5 0 5 8 2 9 9 4
m
co
9 9
2 8 9 9
79