Philips DVD 580M, Service Manual, Page: 26 / 60

Diagnostic Software, Trouble Shooting and Test Instructions
EN 26 DVD580M 5.
5.3.12 Oscilliation From Microphone
Figure 5-12
5.3.13 Cannot Read Any Disc
Figure 5-13
5.3.14 Can Only Read DVD Disc
Figure 5-14
Feedback-Oscillation when switch the Microphone
Check point : the pin 2 of U205 on power supply board
Observe : check the voltage is 2v5
Solution : replace C233
Go
No
Solution : Replace U205
Solution : repair the faulty part Check point : Capacitors C229 to C232 at U205
Observe : check if there is any poor soldering or short circuit
Yes
No
No
Check point : Capacitors C223 to C228 at U205
Observe : check if there is any poor soldering or short circuit
Yes
CL 26532085-071.eps
180702
Cannot read any Disc
Check point : Supply voltage on Disc Loader
Observe : check the +12V and +5V voltage is presented Solution : check the related circuit on
power supply board
Go
Yes
Solution : Replace the cable assembly
Solution : replace the loader Check point : the 40 pins ATAPI cable assembly
Observe : the loader can move when disconnect the cable
No
Yes
Yes
Check point : the 40 pins ATAPI cable assembly
Observe : any poor contact on the cable
Yes
Check point : the 40 pins ATAPI cable assembly
Observe : any poor soldering on components
No
CL 26532085-075.eps
180702
Can only read DVD Disc but not VCD and CD Solution : Replace the loader
Yes
CL 26532085-076.eps
180702