Hitachi 32PD5000 - Page 38

38
32PD5000/42PD5000 (PW1)
31
32PD5000/42PD5000 (PW1)
Troubleshooting (POWER)
Yes
Yes
Yes
Yes
Speaker
Picture is displayed. But no sound
Are the voltages
applied to EAJ1
pins
of the Audio PWB?
No
Audio PWB
+ 5V
+12V
GND
No
Are there signals
on Speaker Terminals?
Audio PWB
Are the signals
applied to EAF1
pins
of the Audio PWB?
No
Formatter PWB or
Video PWB
No
Yes
Power cannot be turned on (LED does not light)
Is the input voltage
applied to Power supply unit?
(
CN61
,
)
AC inlet
Power switch
AC Fuse
F901 T6.3AH 250V
Are the voltages
applied to CN63
pins
and CNPPS
pins
of Power supply unit ?
[CN63]
+5V [CNPPS]
+30V
+3.3V
+ 5V
+12V
+10V
Joint / Formatter PWB
Power supply unit
No
Yes
Filter PWB
L ch
R ch
GND
Check
Speaker terminal and
Speaker cord.
Unlocked
Check
Locked
No sound
Are the voltage
applied to EAJ1
pins?
(When EAJ1 is
disconnected.)
Power supply
unit
No