Citizen iDP-3221 Series, Service Manual

Page: 19 / 39

iDP-3221 Service Manual
–
19
–
CITIZEN
5555.... TTTTR R R RO O O OU U U UB B B BL LL LE E E ESSSSH H H HOO OO OO OOT TT TIIIIN N N NG G G G
5555....1111 TTTTrrrroooouuuubbbblllleeeesssshhhhoo
oo oo
oottttiiiinnnng
g g
g P
PP
Prrrroooocccceeeedddduuuurrrreeee
When a trouble occurs, confirm its phenomenon, locate a defective part in accordance with 5.2
Troubleshooting Guide, and troubleshoot as described below.
· Phenomenon: Find a trouble phenomenon in this column. If there are multiple
phenomena, take all the corresponding items into consideration.
This allows you to specify a hidden defective part.
· Cause: Lists as many possible causes as possible. Guess a trouble cause out
of them and take its check method to specify the trouble cause.
· Check Method: Describes a check method to specify a trouble cause.
· Remedy: Troubleshoot by taking a remedy described in this column.
By troubleshooting in accordance with the above-mentioned procedure, you can troubleshoot ef-
ficiently with fewer misjudgments.
5555....2222 TTTTrrrroooouuuubbbblllleeeesssshhhhoo
oo oo
oottttiiiinnnng
g g
g G
G G
Guuuuiiiiddddeeee
···· P
PP
Poooow
w w
weeeer
r r
r SSSSuuuupp
pp pp
pplllly
y y
y F
FF
Faaaaililililuuuurrrreeee
Phenomenon Cause Check Method Remedy
The AC adapter is not
connected.
Connect the specified
AC adapter.
Check whether any un-
specified power has
been used so far.
Use the specified AC
adapter.
No power
(POWER lamp not
illuminated)
The fuse is gone.
Check whether the
specified fuse is used.
Use the specified fuse.
The control PCB assy is
defective.
Replace the control PCB
assy.
The fuse immedi-
ately goes again
after replacing with
new one.
The circuit drive power
is abnormal.
With a DC voltmeter,
measure the circuit
drive voltage.
Replace the control PCB
assy.
¨ If the fuse is gone with the specified AC voltage supplied to the AC adapter, it is likely that the
thermal head unit or control PCB assy is defective. Replace either defective one. Incidentally,
check the wiring of the drawer and interface cable.
All manuals and user guides at all-guides.com