SD-AS10H
� The CD disc is not recognized. (When the laser beam does not go on)
Is the voltage of 3.4 V being applied to the emitter of Q15 ? No Check the A_5 V line.
Yes Is the voltage of 2.3 V being applied to the pin 6 of CP1 ?
No
Check the line between Q15 and CP1.
Yes Check connection of optical pickup cable. If it is normal, replace the optical pickup mechanism unit.
Both picture and sound do not operate normally. (1)
Place the disc on the tray and close it. Yes When checked, disc starts rotating? Yes Is the level of RF signal which is output from pin 57 of IC1, normally ? No Check for contamination of objective lens of optical pickup. No No Refer to "Disc does not turn."
Yes Replace the DVD servo PWB unit. No Replace the optical pickup mechanism unit.
