Panasonic KX-B620 Service Manual page 18

KX-B620 Series
KX-B520 Series
©
Paper out LED. doesn't work.
Check the |
->Check the —Replace
input pin 30. = micro _the micro
of CPU. switch switch.
' . (10102) installed
It is. "H" condition.
when paper
is out.
Check the Replace
ENDLED 10102.
signal pin 3
of 1C106.
Isit "L"?
Check the —Replace
output pin4d IC 106.
of [C106 .
Is it "L"?
Check the operation panel and cable.
Screen feed problem
Check the reassemble
mechanical
condition:
Check the —Replace
input pins 1, 10102.
5, 8, 12 of
10104.
Check the —Replace it.
+24V cable.
Check the —Check — Replace
+24V power ZD100, them.
source pins 3, -ZD101.
10 of 1C104.
Check the —Replace
output pins 10104.
2, 4, 9, 11 of
10104.
Replace the motor.
© Paper feed problem
Check the
mechanical
condition.
— reassemble
Check the
~> Replace
input pins 1, {$C102.
5,8,12 of
1C105.
Check the —Check — Replace
+24V power ZD102, them.
source pins ZD103.
3, 10 of 1C105.
Check the
output pins
2,4,9,11 of
1C105.
— Replace
1C105.
~ Replace the motor.
© Fluorescent lamp problem
Check the Replace
input pins 5,, 410102.
9 of 1C106.
Check the —Check the
+24V power MAIN
source. unit.
Check the Replace
output pins 1C106.
6, 8 of IC106.
Check the LAMP DRIVE CIRCUIT.
Replace the LAMP.