Electrical Problems; The Large Paper Deck Does Not Operate When The Copier Main Switch Is Turned On; The Deck Paper Conveying Motor Does Not Operate - Kyocera AD-63 Service Manual

5FF

1-3-3 Electrical problems

Problem
(1)
The large paper
deck does not oper-
ate when the copier
main switch is
turned on.
(2)
The deck paper
conveying motor
does not operate.
(3)
Paper deck motor 1
does not operate.
(4)
Paper deck motor 2
does not operate.
(5)
Paper feed clutch 1
does not operate.
1-3-8
Causes
Incorrect connection with
the copier.
Poor contact of the deck
paper conveying motor con-
nector terminals.
The deck paper conveying
motor drive system
overloaded.
Defective deck paper con-
veying motor.
Defective deck main PCB.
Poor contact of the paper
deck motor 1 connector ter-
minals.
Broken paper deck motor 1
coil.
Defective deck main PCB.
Poor contact of the paper
deck motor 2 connector ter-
minals.
Broken paper deck motor 2
coil.
Defective deck main PCB.
Poor contact of the paper
feed clutch 1 connector ter-
minals.
Broken paper feed clutch 1
coil.
Defective deck main PCB.
Check procedures/corrective measures
Check the connector.
Check for continuity across the connector terminals. If none,
replace them.
Check the drive system.
Check if the deck paper conveying motor is operated in mainte-
nance item U247 while the motor drive clock signal is present
at CN2-2 on the deck main PCB. If not, replace the deck paper
conveying motor.
Check if the motor drive clock signal is present at CN2-2 on the
deck main PCB when the deck paper conveying motor is oper-
ated in maintenance item U247. If not, replace the deck main
PCB.
Check for continuity across the connector terminals. If none,
replace them.
Check for continuity across the coil. If none, replace paper
deck motor 1.
Check if CN7-13 on the deck main PCB goes low right after the
drawer is installed. If not, replace the deck main PCB.
Check for continuity across the connector terminals. If none,
replace them.
Check for continuity across the coil. If none, replace paper
deck motor 2.
Check if CN7-6 on the deck main PCB goes low right after the
drawer is installed. If not, replace the deck main PCB.
Check for continuity across the connector terminals. If none,
replace them.
Check for continuity across the coil. If none, replace paper feed
clutch 1.
Check if CN4-3 on the deck main PCB goes low when paper
feed clutch 1 is operated in maintenance item U247. If not, re-
place the deck main PCB.