Trouble Shooting Table - Sharp XV-Z12000 II Service Manual

XV-Z12000 2 2 2 2 2
Checking the basic
performance
Is the POWER LED on or
flickering in red or blue?
Is the set turned on by the
set's or remote controller's
power key?
Is the cooling fan
running? Is the lamp on?
Is the user menu
displayed?
Is the video input
(INPUT3,4) as specified?
Is the component input
(INPUT1,2) as specified?
If the RGB input (INPUT5)
as specified?
Does the RS-232C
interface function?
Recommended
communication software:
"TERA TERM"
Make the following settings:
baud rate at 9600 bps, bit
length at 8 bits, stop bit at 1
bit and no parity. Press the
RETURN key on the
keyboard. Does "ERR"
show up again?
END

TROUBLE SHOOTING TABLE

NO
Go to "Checking the
YES
power unit"
NO
Go to "Checking the
YES
microcomputer
peripherals" and
"Checking the
NO
Go to "Checking the lamp
YES
light-up".
NO
Check the formatter
YES
circuit's peripheral circuits.
NO
Are there output signals at
YES
pins (32), (34) and (4) of
P3580?
NO
Are there output signals at
YES
every other pin from pins
(51/21),(56/26),(58/28),(60/
30) of P3580?
NO
YES Check the PC board
circuit's peripheral circuits.
NO
Are there output signals at
YES
every other pin from pins
(9) to (39) of P3580?
YES
PC PWB".
NO
Check the IC2505 circuit
and its peripheral circuits.
NO
Check the IC2505 circuit
and its peripheral circuits.
NO
Check the IC2505 circuit
and its peripheral circuits.
34