|
|
|
Who's Online
There currently are 5724 guests and
1 member online. |
|
Categories
|
|
Information
|
|
Featured Product
|
|
|
 |
|
|
There are currently no product reviews.
 ;
Great product, very good quality, found all needed information. Thanks
;
Excellent quality, helped to fix problem. Thank you very much!!!!
;
I thank Owner-Manuals.com for providing the necessary manual very quickly, and it was very helpful in repairing my personal Audio System and I once again thank them for the wonderful customer's service satisfaction.
Thanks.
;
Everything fine: quick service, no glitch and above all a very good quality of the Pdf file. Thank you!
;
The manual was complete, parts list, adjustment procedures, etc. No worries
EN 24
5.3.4
5.
DVD728-731 /0X1
Service Hints, Trouble Shooting and Fault Finding
No Sound
B When read disc, Laser ON OK? Signal LDO1 and LDO2  is normal? Y Y Voltage of TP22 &TP24 OK? N Check the peripheral circuit of two transistor (item 7620 & 7621) Check the peripheral circuit of MT1366 Check the peripheral circuit of two transistor (item 7620 & 7621)
N
N
Load a disc?
N
Laser off Y
Check the circuit to connect LOADER OPU maybe damaged
Y
Focus On ok?
N
Any signal on pins A B C D E F of MT1366 Y Signal FEO (pin18 of MT1336) correct?
N
Check the circuit between Loader and MT1336
N
Check the peripheral circuit of MT1336
Y
Y Check the circuit from Pin18 of MT1336 to Pin205 of MT1379
Disc ID correct?
N
Signal of Pin 19 (RFL) of MT1336 normal? Y Check the circuit from Pin19 of MT1336 to Pin206 of MT1379
N
Check the peripheral circuit of MT1336 and itself.
Y
Spindle on OK?
N
DMSO (pin18 of MT1379) normal? Y Signal SP+  &  SPcorrect?
N
Check MT1379 and its peripheral circuit.
N
Check BA5945 (motor driver) and its peripheral circuit
C
Y Check the connection between spindle driver and BA5945
CL 36532024_008.eps 210303
Figure 5-4 No Sound
|
|
|
> |
|
