Panasonic SA-BTT405P

25
Symptom -1 Symptom -2
No power
Check the AC cord.
(cutting or damage…etc.)
Check the
Power supply P.C.B. is
Fuse-resistor(F501) broken?
Check the
Digital P.C.B. connector
voltage
*
1
Exchange the
Power supply P.C.B.
Exchange the
AC cord
Exchange the
Power supply P.C.B.
Disc Tray Can not OPEN or CLOSE
.
Check the
OPEN/CLOSE SW.
(Break or click feeling ...etc.)
OK
Check the Digital P C B
Exchange the
Front P.C.B.
NG
NG
OK
NG
OK
NG
Check the Front Panel
(Broken ...etc.)
OK
Exchange the
Check AC inlet unit.
(cutting or damage…etc.)
OK
NG
Exchange the
AC inlet unt
Exchange Front Panel
NG
Check the
Digital P.C.B. connector
voltage.*1
Check the
Digital P.C.B. connector
voltage.*2
Exchange the
Power supply P.C.B.
Exchange the
Digital P.C.B.
Exchange the
FrontP.C.B.
NG
Check the Digital P.C.B.
connector XP4 voltage.*3
Exchange the Mechanism unit
OK
NG
OK
OK
NG
Exchange the
Digital P.C.B.
Check the FFC
Exchange the FFC
NG
OK
*3
CHECK POINT LOCATION
REF.NO. PIN NO. XP4
*3
1 5.2V
2 3.4V
3 GND
4 3.2V
VOLTAGE DATA (measurement value)
25
*3