Troubleshooting - Panasonic JB-3300 Technical Manual

TROUBLESHOOTING
Not displayed, or abnormally
displayed, under the specified
X line
Y
Connect KDT checking con-
nectors with CN3 nad CN4
Y
Check Din (Pin 25, 26/ICl to 10), Dout (Pin 24, 25/
ICl to 10), CLK (Pin 31/IC1 to 10) and drive output
of driver IC corresponding to specified X line
{
Plasma Display Panel >
Replacement
Unstable display, or no display, on
left side of specified Y line
'
Alternately remove CN1 and CN2 and
ascertain whether fault is on
ADT(1) or on ADT(2) side
'
Check Din (Pin 25, 26/IC1 to 10), Dout (Pin
24, 25/IC1l to 10), CLK (Pin 31/ICl1 to 10) and
drive output of driver IC corresponding to
specified Y line
'
Plasma Display Panel
+ Repalcement
Specified X line lights up
with abnormal brightness
q
> C
Remove CN1 and CN2. Connect
KDT checking connectors with
CN3 and CN4
Specified X line
is not displayed
q
'
Connect KDT checking
connectors with CN3 and
CN4 |
specified X line
Check Din (Pin 25, 26/ICl to 10), Dout (Pin 24,
25/IC1l to 10), CLK (Pin 31/IC1l to 10) and
drive output of driver IC corresponding to
!
Plasma Display Panel >
Replacement
from driver IC correspond-
Is output
ing to specified X line
normal?
Specified Y line is
not displayed
q
Alternately remove CN1 and CN2
and ascertain whether fault is
on ADT(1) or on ADT(2) side
1
Shunt the drive output of the
driver IC corresponding to the
specified Y line with the other
drive output, and ascertain
whether the drive output is
normal a
5
Defective connection be-
tween display panel and FPC
> Replacement
Faulty connection of resistance
module or faulty connection
between display panel and FPC
!
No
~~
Plasma Display Panel >
Replacement