XL-G5000DVD/XL-G5000DVD(S)
7 – 3
• “No Disc” is displayed during CD playback (when DVD is playable) ... When CD laser does not light up.
Is control signal output from pin 135 of IC3001 ?
No
Check and replace IC3001.
Yes
Is voltage of 5 V applied to the emitter of Q3304 ?
No
Check S5V line.
Yes
Is voltage of approx. 2 V supplied to pin 6 of CN3301 ?
No
Check around Q3303 and Q3304.
Yes
Check connection of optical pickup cables.
If no abnormality is detected, replace optical pickup mechanism
unit.
Note: The laser diode is easily damaged by static electricity.
Carefully check static electricity and electric leak of the measuring
instrument.
• Both video and audio do not operate normally.
Put a disc on the DISC tray.
Yes
Disc normally loaded?
No
Check loading switch.
Yes
Is RF signal level output from pin 17 of CN3301 normal?
No
Is objective lens of optical pickups clean?
Yes
Yes
Replace Servo PWB.
No
Replace optical pickup mechanism unit.
Yes
Refer to “Video is not output normally” and “Audio is not
output normally”.