UP-980(UC)
UP-980CE(CE)
TABLE
OF
CONTENTS
1.
OPERATING
INSTRUCTIONS
2.
SERVICE
OVERVIEW
2-1.
PC
BOARD
LOCATION
........cccccccecccccccccccsssscescesceeseceessecssvsctssesesaessssseesseaes
2-1
2-2.
REMOVAL
OF
THE
COVER
AND
THE
PANELS
ou...
cccecceccccesceceseeseseee
2-2
2-2-1.
Removal
of
the
Top
Cover
o........cccccccccccssscsscscscssssesssecsessesssesececaeeasaceaes
2-2
2-2-2.
Removal
of
the
Door
Panel
.0........0c.ccceccccsccsscescssesssctscsssescescssesesceseesees
2-2
2-2-3.
Removal
of
the
Front
Panel
.0.....0.00..cccccscsccscsesssceecsceecseceecacssscsecsseasesees
2-3
2-2-4.
Removal
of
the
Rear
Panel
.........0.ccccccccccccecssesescsscscscscescescssseacecsavseaees
2-3
2-3.
REMOVAL
OF
THE
MAIN
PARTS
.uuuitcceccecccceccecsecceccesecseeseesecesessecescenss
2-4
2-3-1.
Removal
of
the
Mechanical
Block
.0..0.00.occcecccseseescesesceseesessesscsesees
2-4
2-3-2.
Removal
of
the
MA-91
Board
and
the
Switching
Regulator
......0.0.00.....
2-4
2-3-3.
Removal
of
the
Thermal
Head
.........cccscsscscssssssssssssssssssvesssssvssssescesessesees
2-5
3.
ELECTRICAL
ALIGNMENT
3-1.
TRAP‘ADJUSMENT
sccccisscodeiteiecssedestuserdeesnsastensessshddonabeovedbetodsos
Sasisuielclassaetees
3-1
3-2.
VIDEO
LEVEL
ADJUSTMENT
.....0......cccssessssssssesesesessesesceecsessesssssssscsvevesenss
3-2
3-3.
BRIGHTNESS
AND
CONTRAST
ADJUSTMENT.
.......cccccscsesseseesesesesseees
3-2
3-4.
DOOR
LOCK
SENSOR
ADJUSTMENT.
........cccccccesesssssssssssessesssesssssscseseeees
3-3
3-5.
HEAD
VOLTAGE
ADJUSTMENT
...00..eccccsessssessssssssnesesesessesesesscssssecseess
3-4
4.
CIRCUIT
OPERATION
DESCRIPTION
421
VIDEO
CIRCUIT...
cictatabrstiad
lett
a
nncdivlidaiadiiedteiiesenie
aunties
4-4
4-1-1.
Input
Trap
Filter
Circuit,
C-SYNC
Process
Circuit
....c.ccccccccseeseeeeeee
4-4
4-1-2.
Sharpness
and
AGC
Circuit...
ccccccssssscssssesssssescsessssssssscsssssssssenses
4-4
4-1-3.
Brightness,
Contrast
Control
and
A/D
Conversion
..........cccccsccessesescseees
4-4
4-2,
OSCILLATOR
CIRCUIT
oo.
cccscssesssscesescsesessssssssescsesessscsseseseevsvecseeeeeeaes
4-5
4-3.
IC601
PERIPHERAL
CIRCUIT
oo...
eccccccccsssescscssecscscssscsssssvstseavaseceesaees
4-5
4-3-1.
Serial
Data
Reading
from
System
Control
.0.....cccccccccceseeeseececeesseee
4-6
4-3-2.
Writing
to
the
Frame
MeMOLy
.00.........ccccccesesesescsccsescscscscessscsrscecsceeenaees
4-6
4-3-3.
Transfer
from
Frame
Memory
to
Line
MO
MOLY
seccichs
Shelia
oisecss
4-6
4-3-4.
Thermal
Head
Control
and
One
Line
Memoty
............cccccccsceseesteees
4-6
4-4.
MENU
CONTROL
SECTION
0c
cccscsescsssetsssescscssscscsssesesceaceneceenenens
4-8
4-4-1.
Watch
of
Various
Keys
o......c.cccccccccscscessescsccecsecesseecssessssssssatseceaseassceeee
4-8
4-4-2.
LCD
(Liquid
Crystal
Display)
Control...
ccc
ceseeceseeeececcstscesesees
4-8
4-4-3.
EEPROM
Control
0...
ccccccecssseseseesesssscesesesescssssnssavscsessevssesverssrscseaeses
4-8
4-4-4.
D/A
Converter
Control
o...ececcccecccccssssecsesescsscscecscsssscecesesceccevsseacacsacecns
4-8
4-4-5.
Communication
with
IC505
(System
Control
CPU)
00.00.00.
cccececeeeeeeees
4-9
4-5.
SYSTEM
CONTROL
SECTION
.0......cccccccccssscscescsesesceecsccesesececsesetacsense
4-10
4-5-1.
Transmission
with
IC201
(Key
and
Menu
Control
CPU)
...........0...0-
4-10
4-5-2.
Platen
Motor
Control
oo...
ccceccccsssesesesssssenscsescsussscssececessesenatscseeneessaes
4-10
4-5-3.
Head
Up
and
Down
Control
.0....000ccccccccessscssesessecesescecescscestsesseaeseseees
4-10
4-5-4.
Door
Open
and
Close
Control
.....0.00.c.cccccccsscescseesssceceseevereesstseseeacsasee
4-11
4-5-5.
Paper
Cutter
Comtrol
oo...
eceeccsesesssessesesescscsssvensesscscassestececessesaseeaees
4-12
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