Hitachi 32LD7200, Service Manual

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35
32LD7200 (PW2L)
No(low)
<2V
No
red
green/orange
Yes(high)
>2V
Yes
No
Yes
Is the LED red or
Is backlight lighting?
green/orange?
Picture is not displayed (LED is lighting)
Is the voltage of
P806[1]pin on the Power
supply unit high?
Is the voltage of
PFJ5[4][7]pins on the Formatter
PWB 12V?
Is the voltage of
P801,P802[1][2][3][4][5]pin on the
Power supply unit 24V?
Is it the power
saving mode?
Input signal Cable
or Formatter PWB
Yes
No
Inverter unit
No
Yes
[1] +5V
[7] +5V
Is Voltage applied
to P804[1]pin of the Power
supply unit?
Is Voltage applied
to PJF1[7]pin of the
Joint PWB?
Power supply
unit
No
Yes
Joint PWB Formatter PWB
Power supply
unit
Joint
or
Formatter PWB
Power supply
unit
No
Yes
Formatter PWB
or
Panel Module
Is the voltage of
PFJ1[1]pin, PFJ2[1][2]pins applied
to of the Formatter
PWB?
PFJ1
[1] +10V PFJ2
[1] +6V
[2] +6V
No
Yes
Power supply
unit
Is the voltage of
PFJ2[5][6][9][10][11]pins applied
to of the Formatter
PWB?
PFJ2
[5] +3.3V [9] +1.8V
[6] +3.3V [10] +1.8V
[11] +1.8V
No
Yes
Joint PWB
[ Power ]