Panasonic JB-3300 Technical Manual page 279

Seed and display lighting do not operate +
+ 1
+5 V No Remove Voltaged No Abnormality
-195 V normal? JIA, JIB 1 of 3 power sources: in power
-200 V and J2 normal? source
Yes
Connect JIA and JIB
Check out-
put signal 2
of main 'SY Is 1? Remove CN1 2
normal?
board
and CN2
BDT
Yes
No IC7
Remove CN3 and CN4 | IC10 Check
and connect J2
Check out-
No put siganl BDT
of main
board Icl Check Connect CN1
IC6
l ves ADT (1)
BDT icl Check
—
iclO
| . 1 Si Connect CN3
Is X driver No CLK
output normal? Invi Check KDT (2)
INV2
icl Connect CN2
Yes icl0 Check
ADT (2)
__ icl
ts No CL icto Check
Y driver input CHG Check
Signal normal? STB .
KDT (1)
Yes
icl
$e10 Check
Fault in display panel
Leak/or check.
(Check gas vent) : '
Tit - 19