CD-DVD500H
TROUBLESHOOTING
The disc does not rotate.Repair the changer mechanism.
No
No
Is the disc chucked at the specified location ?Check the changer mechanism.
YesYes
Check the connection between pins 3 and 7 of
IC705 and M3.
Yes
Replace IC705.
Does the pickup move in the direction of inner NoCheck the cable connecting to the CS3301.
periphery ?(Check the CS3301 and line of pins 13 and 14 of
IC3801.)
Yes
No
After moving in the direction of inner periphery, Check the cable connecting to the CS3301.
does the pickup move in the direction of outer
periphery ?
Yes
No
Is 8 V being applied to the pins 8 of IC3801 ? Check the M_8 V line.
Yes
Replace the IC3801.
The [No Disc] indication. (In case of focus error)
When removing disc and applying load to spin NoSee FLOW CHART <The [No Disc] indication.
motor (by stopping with hand, etc.), objective lends (In case focus servo does not function.)>
moves up and down? (Checking item to symptom)
Note) If load is not applied to spin, lens does not
move and becomes NO DISC immediately.
Yes
Replace IC3301.
Is FE signal output to the pin 21 of IC3301 when Yes
No
the disc is set ?Is there input signal on the pins(50,55) and (49,54)
Yesof IC3301?
No
Is FE signal inputted into the pin 150 of IC3701.No
YesCheck the connection of optical pickup cable.
Check or replace IC3701.If it is normal, replace the optical pickup.
Check the line between the IC3301 and IC3701.In case of CD.
For DVD, 58, 59, 63, and 64
� 68 � |
ACEC
