Toshiba BDX2500KU, Service Manual

Page: 43 / 52

11-3
Trouble shooting chart
Spindle motor does not move.
Motor no move
Check the FFC connection
between 45P and the loader.
Have no focus
Check whether "RFA5V"
(+5V) voltage is normal.
Check whether laser voltage
(2.3V for DVD & 1.9V for CD &
8V for BD) on Collector of Q4504,
Q4506 and Q4502.
1.Whether voltage on pin C11,C10,
B10 of IC4001 varies between 0 and
3.3V.
2.Whether peripheral components
are eroded or badly soldered.
Go
Yes
Yes
Yes
Yes
Yes
Check/Replace the loader.
Correct connection.
Check the RFA5V power supply
or replace Main PCB.
Check/Replace Q4504,Q4506
and Q4502 or replace Main PCB.
Check/Replace IC4001 or replace
Main PCB.
1.Check IC4001 pin E9
FOCUS_PWM signals.
2.If there are F+,F-,T+ and T-
signals output from IC4402.
No
No
No
No
No