4. Trouble shooting
Power can not be turned on (LED is not lit)
Is the input voltage No
applied to the AC/DC
Power unit (J01 ?, ?)?
AC Fuse
AC inlet Power switch
F901 12A,250V
Yes
Are the voltagesNo
applied to pins 2,11 (PAS)
of the Signal PWB
correct?
YesAC/DC
Power unit
2 +5.6V
11 +4.4V
´ GND
Signal PWB
Picture is displayed, but no sound
Is the voltage
applied to pin ? (J104)No
of the AC/DC Power
unit correct?
Yes
AC/DC
? +25 ~ 30V
Power unit
? GND
No
Are there signals on the
Speaker Terminals?
Yes
Video PWB
Speaker
4 |