Troubleshooting - Hitachi PDV-701S Service Manual

TROUBLESHOOTING

SYMPTOM: NO POWER, NO GREEN LED
start
Check if the
power cable
and
AC adapter
OK?
yes
Check if the
power and play
button OK?
yes
replace MAIN
BOARD
SYMPTOM: THE INITIAL SCREEN IS NOT DISPLAYED ON THE LCD
start
Check if the
LED on the
front lights up?
yes
Check if the
backlight is
OK?
yes
Check if the
lighting of the
LCD is OK?
yes
Replace LCD unit
or main board
replace cable/
no
adapter
replace connector
no
and switch unit
Refer to the
symptom NO
POWER, NO
GREEN LED
no
Open the top and
bottom assembly
no
to check the
connector harness
Open the top and
bottom assembly
no to check the
connector to the
main board
set OK?
no
go to other
SYMPTOM
Replace broken
yes
Remove the LCD
Is the cover and plate of
connector the LCD unit to
no
harness
broken? connector of the
FL harness
Is the
connector
broken?
yes
Replace LCD Connect the LCD
harness or main
harness to the
board
LCD unit
18
No defect, return
yes
set to customer
Repair connector
check the connector OK?
Replace FL
inverter or LCD
Remove the LCD
cover and plate of
the LCD unit to
no check the
connection of the
harness to the
LCD unit
no connection
Replace LCD unit
or main board
no
Is the
yes
Is the
OK?
yes