Table of Contents
Advertisement
The disc does not rotate.
Is the disc chucked at the specified location ?
Does the pickup move in the direction of inner
periphery ?
After moving in the direction of inner periphery,
does the pickup move in the direction of outer
periphery ?
Is 8 V being applied to the pins 8 of IC3801 ?
Replace the IC3801.
The [No Disc] indication. (In case of focus error)
When removing disc and applying load to spin
motor (by stopping with hand, etc.), objective lends
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.
Is FE signal output to the pin 21 of IC3301 when
the disc is set ?
Is FE signal inputted into the pin 150 of IC3701.
Check or replace IC3701.
Check the line between the IC3301 and IC3701.
TROUBLESHOOTING
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Repair the changer mechanism.
No
Check the changer mechanism.
Check the connection between pins 3 and 7 of
IC705 and M3.
Replace IC705.
No
Check the cable connecting to the CS3301.
(Check the CS3301 and line of pins 13 and 14 of
IC3801.)
No
Check the cable connecting to the CS3301.
No
Check the M_8 V line.
No
See FLOW CHART <The [No Disc] indication.
(In case focus servo does not function.)>
No
Is there input signal on the pins(50,55) and (49,54)
of IC3301?
No
Check the connection of optical pickup cable.
If it is normal, replace the optical pickup.
In case of CD.
For DVD, 58, 59, 63, and 64
– 99 –
SD-AT100H
No
Yes
Yes
Replace IC3301.
Yes
No
Advertisement
Table of Contents
