Service manual

25
P50T01U/E P50TP01U/E P42T01U/E P42TP01U/E
[USB troubleshooting]
[SD Card troubleshooting] [SWIVEL troubleshooting]
No Picture
Does a phenomenon appear
if you change a USB cable &
EMH (FFC cable)?
Change USB cable or EMH (FFC cable)
No
Are the voltages of
pin4(+5.6V)/5(+5.0V) of I4U1
of MAIN PCB normal?
Change MAIN PCB
No
Yes
Yes
Change SD PCB
If no improvement,
change MAIN PCB
No Picture
Are the voltages of
pin4/5/6/7(+3.3V) of PSHL
connector of MAIN PCB
normal?
Change MAIN PCB
No
Yes
Change SD PCB
If no improvement,
change MAIN PCB or ESL
(cable)
SWIVEL does not move
When the Swivel button
on
the remote control,
is "Not Available"
displayed?
Change Terminal PCB or
Swivel cable
No
Yes
A cable is not connected to the swivel stand
or a plug connection is incomplete.