Sony UP-890CE User manual

SONTYTY.
UP-890CE
UP-890MD
SERVICE MANUAL

AFETY RELATED COMPONENT WARNING
Components identified by shading and A marked on the
schematic diagrams and parts list are critical to safe operation.
Replace these components with SONY parts whose part
numbers appear as shown in this manual or in supplements
published by SONY.

CONTENTS
Section
Page
1.
GENERAL
1-1.
Specifications...
ecseecetereereretseensseneneneeneeees
4
1-2.
Location
and
Function
of
Parts...
5
1-8.
OVOPVIOW
0...
ecececeeteesreennseenseesennaeesnaeeaaenecsensnaeteas
6
1-4.
COMMECTION
2.0...
eee
eeeeseetesereeneeseeeneeeteatenssesenseenee
6
1-5.
Before
Printing
............eseseeeseeseeerenectseeseeseseeee
7
1-6.
Loading
Paper...
cceseseeeseeereeseseenenseeeneeneens
9
1-7.
PIMtING.
oo.
eee
eects
eeceteeeeeseneeteeeetenensensnsentnseenenees
10
1-8.
PreCAUtiONS
.......
ee
sceeeceeeeeseeceaseeeenteseecenenssens
12
1-9.
On
the
Type
of
Paper...
ceeseseeeteeeteees
13
1-10.
Troubleshooting
..........ccccceeeseseeseeetereeeseeerecees
14
2.
DISASSEMBLY
2-1.
Removing
the
Top
Cover........eecrscesececceses
15
2-2.
Removing
the
Door
Panel
and
Front
Panel
Unit...
esessscssseesseeerseseeereseees
15
2-3.
Removing
the
MA-19
Board.........
cess
16
2-4.
Removing
the
Mechanism
Block
.................+
16
2-5.
Removing
the
Shield
Case
and
Switching
ReQulator
...........cccecceeeessnseeeeeseees
17
2-6.
Removing
the
Thermal
Head
.............
18
3.
ADJUSTMENTS
3-1.
Head
Voltage
Adjustment...
eessesecsees
19
3-2.
Brightness
Contrast
Adjustment...............:+
19
3-3.
Motor
Speed
Adjustment
..........--ceeeeeeetees
20
4.
DIAGRAMS
4-1.
Circuit
Boards
Location
.........
cesses:
21
4-2.
BlOCK
DiaQrarn
.........cccesesceceteeeneeeteseeeneteesnenes
22
4-3.
Printed
Wiring
Boards
and
Schematic
Diagrams
...........sseeeseseeeeerereerees
25
4-4,
S@MICONAUCTOSS
«0...
ce
eeeseesereereeteetecseneeeneeeees
39
Section
Page
5. CIRCUIT DESCRIPTION
5-1.
Video
Circuit...
ees
ssseceeesneenteeseretseneeerseee
46
5-5-1.
Operation
........ceccsssscsessecsecerenenseesssensenneneees
46
5-2.
Oscillation
Circuit
0...
eseeesceeereesneeneeenees
47
5-3.
Peripheral
Circuit
10103
............ceseseeeeeees
48
5-3-1.
Operation
description
...........ceeeesereesees
48
5-4.
System
Control
Section
..........eecseseeeeeneees
51
5-4-1.
Memory
write
(FETCH)
signals
from
the
Print
KOY....eceseeteeeteneeetsatensenees
51
5-4-2.
From
memory
writing
till
screen
PIII
0...
eeesessceeceetenencceeenetenentenseereesoneens
52
5-4-3.
MOE
St
on.
.ceecesesccssccesssnceeesssneeseserereerssensaees
54
5-5.
Motor
Drive
S@ction
0.0...
cccesesscesseseeseennersees
55
5-5-1.
Platem
Motor
ou...
cceecesscccessseeeentesterereeteeeens
55
5-5-2.
Head
U/D
motor
and
DOOR
motor........
55
5-6.
Thermal
Head
Section
...........cesessseereceseees
56
5-6-1.
COnmfiguration
.........ccsccseseeesssereeeeseerersesateres
56
5-6-2.
Timing
Chatto...
.cesseseseseneeeeeereecectseenees
56
5-6-3.
Basic
OPeration
ou...
ccsceceescrerereereeereseneees
57
5-6-4.
Stair
GENeration
20...
eccecseeeenesteeseeeeees
57
5-6-5.
Temperature
compensation..........seee
58
6. EXPLODED VIEWS
6-1.
Chassis
S@CtiON
00...
ccscsseeseteeeteecerrteeeseseees
59
6-2.
Print
Mechanism
Section
(1)...
61
6-3.
Print
Mechanism
Section
(2)...
63
7.
ELECTRICAL
PARTS
LIST
.............:
ee
65

F UP-890CE/890MD
SECTION 1
GENERAL
1-1. SPECIFICATIONS
Thermal head
Thin-film thermal head (with built-in drive
IC) 1024-dot drive
Gradation
256
Resolution (in WIDE | mode)
EIA: 970 x 490 dots
CCIR: 970 x 582 dots
Print size (in NORM and WIDE | mode)
STD mode
EIA: 95 x 72 mm
CCIR: 95 x 71 mm
SIDE mode
EIA: 127 x 96 mm
CCIR: 127 x 95 mm
Printing speed (in STD and NORM mode)
About 3.9 seconds/screen (aspect ratio 4:3)
Picture memory
786 K x 6 bits
InpuVoutput connectors
VIDEO IN (BNC)
EIA or CCIR
Composite video signals
1.0 Vp-p, 75 ohms/high-impedance (EIA/
CCIR automatically discriminated)
VIDEO OUT (BNC)
EIA or CCIR
Composite video signals
1.0 Vp-p, 75 ohms, loop-through/EE
switchable
REMOTE (stereo minijack)
“8
ii
1
| GND
2 PRINT SIGNAL (TTL)
Input of LOW pulse over 100 msec.
initiates print.
3 PRINT BUSY (TTL)
Goes HIGH during printing.
20 | Others
This section is extracted
from instruction manual.
Power requirements and consumption
120 V AC, 50/60 Hz, 1.5 A (UP-890MD)
220 to 240 V AC, 50/60 Hz, 0.8 A (UP-890CE)
Dimensions
Approx.
[54
x
106
x
303
mm
(w/h/d)
(6%
x
4% x 12 inches)
Mass
Approx.
3.5
kg
(7
Ib
11
oz),
Main
unit
only
Supplied accessories
Paper roll (UPP-1 LOHA) (1)
BNC - BNC connecting cable (1)
AC power cord (1)
Head cleaning sheet (1)
Remote
commander
RM-91
(1)
supplied
with UP-890MD only
Design
and
specifications
are
subject
to
change
without
notice.

1-2. LOCATION AND FUNCTION OF PARTS
For details, refer to the pages indicated in parentheses.
{1] Power ON/OFF switch and indicator
Turns the power on. The indicator is tit while
the power is on.
CS)
Printing size selector (13)
Selects the printing size.
STD (standard)/SIDE selector (13)
Selects the printing direction.
&e
CONTR (contrast) control (15)
Adjusts the contrast of the print-outs.
@
THRU/EE selector (15)
Selects the video signal output from the
VIDEO OUT connector.
THRU: Input signals are directly output to
the video monitor.
FE: Input signals are output to the video
monitor after being processed by the printer's
circuitry.
Others
[6] BRIGHT (brightness) control (15)
Adjusts the brightness of the print-outs.
COPY button (14)
Prints another copy of the previous print-out.
PRINT button (12)
Prints the picture currently displayed on the
video monitor. The picture displayed when
you press the PRINT button is stored in
memory.
(9) PAPER EMPTY indicator
Lights when the printer is out of paper.
OPEN/CLOSE button (10, 14)
Opens or closes the door. Also, stops printing
midway.
iy) Paper feeder and cutter
Cuts the printing paper.
REMOTE connector (5)
Connect the RM-¥91 remote commander for
controlling print operation from a distance.
The RM-91 remote commander is supplied
with UP-890MD only.
GAMMA selector (6)
Changes the print mode to that for high-
density printing paper. The selector is
effective when the PAPER TYPE selector is
set to Tlor1V.
{os}
PAPER TYPE selector (6)
Sets the type of paper.
[4] DIP SW (switches) (7 - 9)
Sets the print modes and functions.
VIDEO IN (input) connector (BNC
type) (5)
Connect to the video output connector of the
video equipment.
[6]
VIDEO OUT (output) connector (BNC
type) (5)
Connect to the video input connector of the
video monitor. The output signal type
depends on the setting of the THRU/EE
selector.
AC IN (AC power input) connector (5)
Connect to a wall outict using the supplied
AC power cord.
Equipotential terminal
Fquipped only with the UP-890CE/890MD.
Others | 23

4
1-3. OVERVIEW
Introduction
The
UP-880/890CE/890MD
is
a
black
and
white
video
graphic
printer
that
can
be
used to print images displayed on video monitor.
Clear, consistent print quality
* High definition, 10.2 dots/mm printing using a thermal head with high-speed
drive IC.
* 256 gradations of black and white.
Fast printing
*
You
can
make
a
single
print-out
in
about
3.9
seconds
in
STD
and
NORM
mode.
*
You
can
make
a
maximum
of
11
copies
of
the
same
image
continuously.
Two
way
printing
direction
and
five
printing
sizes
selectable
*
The
printing
direction
selector
on
the
front
panel
enables
you
lo
print
in
vertical
and horizontal directions.
¢
The
printing
size
control
on
the
front
panel
enables
you
to
select
five
kinds
of
printing size.
DIP switches to optimize the printer
*
You
can
make
print-outs
starting
either
from
the
bottom
or
top
of
the
image
by
setting the DIRECTION DIP switch.
*
You
can
set
the
print-out
aspect
ratio
to
4:3
or
1:1
by
setting
the
ASPECT
DIP
switch.
*
You
can
set
the
range
to
be
printed
by
setting
the
SCAN
DIP
switch.
*
You
can
save
your
paper
by
setting
the
POSTFEED
DIP
switch
(paper
saving
function).
Automatic video signal discrimination
The
type
of
input
signal,
black
and
white
(EIA
or
CCIR)
or
input color
(NTSC
or
PAL),
is
automatically
discriminated
and
printed
in
same
duration
and
size.
Alarm buzzer
The
alarm
buzzer
prevents
you
from
making
any
misopcration.
Easy and quick paper loading
You
can
load
paper
just
by
opening
the
paper
lid
with
the
OPEN/CLOSE
button
and placing the paper roll.
1-4. CONNECTION
*
Turn
off
the
power
to
each
device
before
making
connection.
*
Connect
the
AC
power
cord
fast.
RM-91
remote
Color/lack
and
white
commander”
e
video
monitor
Video
equipment
to video oulput
Connecting cable
connector
(not supplied)
Supplied coaxial to video input
connecting cable connector
(BNG —+ BNC)
to
REMOTE
lo
VIDEO
IN
Px
=
10
VIDEO
OUT
to AC IN
fo wall outlet
Supplied AC power cord
*
The
RM-91
remote
commander
is
supplied
with
UP-890MD
only.
Preparation
5

1-5. BEFORE PRINTING
LLL aaa OT Ee A eT
Setting the Type of Paper Setting the DIP Switches
Set the PAPER TYPE selector to the type of paper to be used. Set the DIP switches according to the required print mode. Before setting the DIP
‘The use of paper other than Sony may result in reduced printer performance and switches, turn the power off, Change the settings using a small pointed tool such as
poor
print
quality.
a
small
screwdriver.
The
factory
settings
are
as
follows.
Type of paper PAPER TYPE switch position
UPP-110S | (Normal)
UPP-110HD Il (High density)
UPP-110HA !V (Enhanced)
on
Parti oor
AtMore i onew NN
i
APER
P
<-viDEO— GAMMA TYPE
Louw Luv
SW-ON|SW-OFF
O OFF
FEED [ON [OFF |
When
you
use
the
UPP-110HA
or
UPP-110HD
ERRUEFONGEE
Seal
When you set the PAPER TYPE selector to I or IV, set the density gradation with To interrupt the printing under way and print a new picture when you press
the GAMMA selector. the PRINT button during printing, set this switch to ON.
1: Soft gradation To disregard that the PRINT button is pressed during printing and continue
Hi: Standard the printing under way, set to OFF.
IV: Hard gradation If you press the PRINT button during printing in OFF mode, the alarm buzzer
will sound.
[2] POSTFEED ON/OFF switch
To feed out extra blank paper once a picture has been printed, set this switch
to ON.
To save paper by feeding only a short length of paper after printing a picture,
set (o OFF. You can make more print-outs per roll of printing paper, but you
have to take out and cut the paper yourself,
6
|
Preparation
Preparation
|
7

er
ASPECT
4:3/1:1
switch
(8][9]
SCAN
NORM/WIDE
I/WIDE
2
switch
Normally
keep
this
switch
set
to
4:3.
When
the
aspect
ratio
of
the
vidco
Sets
the
print-out
range.
The
print-out
range
is
widened
in
the
NORM,
WIDE
signal
is
1:1,
set
to
Ist.
1,
and
WIDE
2
order.
The
print-out
will
be
longer
than
a
print-oul
made
at
4:3.
To
print
only
the
image
displayed
on
the
standard
screen
size
of
the
video
monitor,
set
the
SCAN
switch
[9]
to
NORM
(OFF).
To
print
when
the
signal
scans
beyond
the
edge
of
the
standard
monitor
screen,
set
the
SCAN
switch
[9]
10
WIDE
1
(ON)
or
the
SCAN
switch
[8]
to
WIDE
2
(OFF).
When
you
set
the
SCAN
switch
{8]
to
the
WIDE
2
position,
WIDE
2
is
selected
regardless
of
the
setting
of
the
SCAN
switch
[9]
position.
an
N
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bel
{|
7
i - t
i) PSs FE
milk
1
CI
=
CSN
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q
ory
5
@.
8
He
|
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Hd
4
BEN,
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ORS Zi a
AJ Ati as, ry
[4] MEMORY FRAME/FIELD switch
Normally
keep
this
switch
set
to
FRAME
(ON).
When
Printing
fast-moving
pictures
(such
as
a
ball
being
thrown),
the
print-out
may
blur.
If
this
happens,
set
lo
FIELD.
The
print-out
definition
will
be
poorer
but
less
blurred.
RESERVED switch
[5]
IMAGE
POSI/NEGA
switch
Keep
this
switch
set
to
ON.
Normally
keep
this
switch
set
to
POST
ON).
To
make
negative
print-outs,
set
;
to
NEGA
(OFF).
iia
[i]
INPUT
B&W/COLOR
switch
Set
this
switch
to
B
&
W
(ON)
when
the
signal
to
be
printed
is
black
and
[6]
MIRROR
NORM/REV
switch
white.
Set
to
COLOR
(OFF)
when
the
signal
is
color.
Normally
keep
this
switch
set
to
NORM
(ON).
‘To
print
the
right
and
left
ane
sides
reversed,
set
to
REV
(OFF).
75Q
ON/OFF
switch
Set
this
switch
to
OFF
when
a
video
monitor
or
other
video
equipment
is
DIRECTION
NORM/REV
switch
connected
to
the
VIDEO
OUT
connector.
Selects
whether
the
top
or
bottom
of
the
screen
is
to
be
printed
first.
Set
to
ON
when
nothing
is
connected
to
the
VIDEO
OUT
connector.
;
Normally
keep
this
switch
set
to
NORM
(ON).
Printing
is
done
from
the
When
you
connect
two
printers
to
one
video
equipment,
set
the
75Q
switch
of
bottom
of
the
screen.
To
start
printing
from
the
top
of
the
screen,
set
to
REV
one
of
the
printer
to
ON,
and
the
other
to
OFF,
(OFF),
AEA
an
ity
lina
Ra?
8
|
Preparation
Preparation
|
9

1-6. LOADING PAPER
3 Place the paper roll in the printer.
* Do not fold the paper or touch the printing surface. Dust on the printing surface
will result in poor print quality.
* After loading the paper roll, pull out and cut off the first 15 to 20 cm (6 to TA
inches) to remove any slack.
¢ Use only UPP-110 series paper (p. 19).
* Set the PAPER TYPE selector according to the paper type (p. 6).
Loading
1 Press the power ON/OFF switch to turn on the printer,
Place the paper with the thermo-sensilive
side (printing side) up.
A Pull out the first 15 to 20. cm (6 to 7% inches) of the paper to remove any
slack in the roll.
| 2 Press the OPEN/CLOSE button to open the paper lid.
5 Press the OPEN/CLOSE button to close the paper lid.
You can also close the paper lid simply by pushing it.
10 | Preparation
Preparation | 11

1-7. PRINTING
Before making print-outs
* Are the connections correct? (p. 5)
* Is the paper roll loaded properly? (p. 10).
* Is the paper type set correctly? (p. 6).
* Are the DIP switches set correctly? (p. 7 — 9)
* Is the print source being input?
WEL Cave Madeley cele) cy
1
Press
the
power
ON/OFF
switch
to
turn
on
the
printer.
The
power
indicator
lights.
PAPER EMPTY indicator
2
Make
sure
that
the
PAPER
EMPTY
indicator
is
not
lit.
IF
iL,
load
paper.
3 Select the printing direction and size.
See
“Selecting
the
Printing
Direction”
and
“Selecting
the
Printing
Size”
on
the next page.
4
when
the
piclure
you
want
to
print
is
on
the
video
monitor,
press
the
PRINT
button,
The
printer
makes
a
print-out
of
the
picture
displayed
at
the
instant
you
press
the
PRINT
button.
12 | Operation
Selecting
the
printing
direction
You
can
select
the
vertical
or
horizontal
direction
using
the
STD/SIDE
selector.
To
print
in
the
vertical
direction,
set
to
STD.
To
print
in
the
horizontal
direction,
set
to
SIDE.
STD
Tih
SIDE
[aac
|
STD
iD
SIDE
2
<x
Selecting
the
printing
size
NORMAL
SMALL ¢ a, ZOOM 1. 5x
wees) -200 2x
Priting size
You can print in small or large size.
Also
you
can
enlarge
the
center
of
the
picture
by
1.5 or 2 times.
Control position (mode)
Vertical
(STD)
_
Horizontal
(SIDE)
NORMAL
ABC
©
an)
<x
SMALL
O}O
ABC
|]
ABC
a}a
2]
8]
LARGE
PP
f N
O
aa
<
ZOOM
1.5X
(>
UY
an
<l
i]
Mm
Operation
ZOOM 2X
[
=
13

14
To print in SMALL mode
Press the PRINT button twice, When you press the PRINT button once, the buzzer
sounds. The printer starts printing after the PRINT button is pressed twice.
Stopping printing midway
Press the OPEN/CLOSE button while printing or while copying. The printer stops
printing.
To stop printing and print another picture displayed on the video
monitor
To do this, the DIP switch fil (INTERRUPT) must be set to ON (p. 7).
Press the PRINT button while printing or copying. The printer stops printing and
starts printing the picture displayed al the instant you press the PRINT button.
Making copies of the last print-out
Operation
Press the COPY button. The printer makes a copy of the last print-out. The last
print-out is retained in the printer's memory until you press the PRINT button
again or turn the power off.
To copy in different sizes
You can copy the last print-out in different sizes.
Before pressing the COPY button, select the printing size as described in
“Selecting the Printing Size”.
* If you press the COPY button immediately after turning the power on, the alarm
buzzer will sound as nothing is stored in memory.
* In SMALL mode (p. 13), if you press the COPY button after you have pressed
the PRINT button only once, the alarm buzzer will sound and the printer will not
copy.
To make multiple copies of the same print-out
Press the COPY button as many times as necessary (maximum 1} copies including
the fitst print-out) while printing or copying the first print-oul. Each time you press
the COPY button, the short buzzer sounds.
To stop copying midway
Press the OPEN/CLOSE button.
Adjusting the Contrast and Brightness
You can adjust the contrast and brightness of the print-out.
1 Sct the THRU/EE selector to EE.
You can check the adjusted picture on the video monitor.
CONTR BRIGHT
2 Adjust the brightness with the BRIGHT control and the contrast with the
CONTR control while watching the picture on the video monitor.
Adjusting the contrast
CONTR
Weaker (@) Stronger
Adjusting the brightness
BRIGHT
Darker Brighler
To directly input the video signal from the video equipment, which is
connected to the printer, to the video monitor
Set the THRU/EE selector to THRU. The video signal is directly input to the video
monitor without being processed by the printer's circuitry.
Operation | 15

|
=é
LS)
|
16
1-8. PRECAUTIONS
On the safety
* Check the operating voltage before operation.
Operate the unit only with a power source specified in “Specifications”.
* Stop operation immediately if any liquid or solid object falls into the cabinet.
Unplug the unit and have it checked by qualified personnel.
+
Unplug
the
unit
from
a
wall
outlet
if
you
will
not
be
using
it
for
a
tong
time,
Disconnect
the
power
cord
by
grasping
the
plug.
Never
pull
the
cord
itself.
*
Do
not
disassemble
the
cabinet.
Refer
servicing
to
qualified
personnel
only.
* Do not touch the cutting blade of the printer.
*
Connect
the
power
plug
of
the
printer
to
a
wall
outlet
having
protective
earth
terminal.
The
safety
earth
should
be
properly
established.
On operation
Do not turn the power off while the printer is printing. The thermal head may be
damaged.
On printer carriage
On installation
Others
Do
not
carry
and
move
the
printer
when
the
paper
roll
is
placed
in
the
printer.
Doing
so may
cause
malfunction.
* Place the printer on a level and stable surface during operation.
*
Do
not
install
the
printer
near
heat
sources.
Avoid
locations
near
radiators
or
air
ducts,
or
place
subject
to
direct
sunlight
or
excessive
dust,
humidity,
mechanical
shock
or
vibration,
*
Provide
adequate
air
circulation
to
prevent
heat
build-up.
Do
not
place
the
printer
on
surfaces
such
as
rugs,
blankets,
elc.,
or
near
materials
such
as
curtains
and
draperies.
ae
a
a
a
TER
I
IS
SE
ERR
Cleaning the cabinet
Do not use strong solvents to clean the printer. Thinner or abrasive cleansers will
damage the cabinet.
Cleaning the thermal head
If the print-out is dirty or white stripes appear on the print-outs, clean the thermal
head using the supplied cleaning sheet.
1 Press the power ON/OFF switch to turn on the printer.
Others
17

1-9. ON THE
TYPE OF PAPER
* Use only the Sony UPP-110 scries paper. The use of other paper may result in
reduced printer performance and poor print quality.
* The following lypes of paper are available.
Printing density Type of paper
TYPE | (Normal) UPP-110S
TYPE II (High density) UPP-110HD
TYPE IV (Enhanced) UPP-110HA
3
Insert
the
cleaning
shect,
with
the
black
surface
facing
down,
into
the
groove
Type
of
paper
in
the
paper lid.
Insert
into
groove.
Cleaning
shee
(supplied)
Storing
paper
4 press the OPEN/CLOSE button and keep it pressed.
The paper lid closes and the printer starts cleaning the head.
When the buzzer sounds and the printer starts ejecting the cleaning sheet,
release the OPEN/CLOSE button.
When the buzzer
sounds. release the
Keep the bulton pressed.
bulton.
5 Remove the cleaning sheet.
* Do not press the PRINT or COPY button while the cleaning sheet is in the
printer.
* Clean the head only when necessary. If you clean the head too often, it may
cause malfunction.
18 | Others
* Store unused or printed paper in a cool, dark place (below 30°C or 86°F). We
recommend that you store printed paper in a polypropylene pouch.
* Do not store unused or printed paper in hot or humid place.
* Do not leave unused or printed paper in direct sunlight or other bright place for
extended periods.
* Do not allow any volatile organic solvent or vinyl chloride to touch the printed
paper. Alcohol, plastic tape or film will fade the print-out.
* To attach printed paper to another piece of paper, use double-sided adhesive tape,
or water-based or solid glue.
* Do not stack printed paper on or under a diazo copy sheet. The print-out may
become discolor in black.
Olhers
19

1-10. TROUBLESHOOTING
Symptom Cause/remedy
White specks on first few When printing with a newly inserted roll of paper,
print-outs. dust on the surlace of the paper may cause white
specks on the print-outs.
+ Feed the paper by pressing the OPEN/CLOSE
button until clean paper appears.
Printing does not start
when you press the
PRINT button.
+ Paper is not fed.
> \s the paper slack?
+ Is the power turned on?
- + Are all connections correct? (p. 5)
+ Did you press the PRINT button twice in
SMALL mode?
+ When the alarm buzzer sounds:
+ Has the thermal head overheated?
» Is the video signal of the picture input?
+ Is the paper loaded correctly?
* Paper is fed, but printing does not start.
> Is the paper loaded with the thermo-sensitive
side up?
Black borders or missing
portions around the print-
oul.
Paper jam
This may result according to the video signal input
to the printer.
» Change the setting of the SCAN switches (DIP
switches [8], (9]). (p. 9)
+ Open the paper lid by pressing the OPEN/
CLOSE bulton, then pull the jammed paper
slowly and remove it.
+ There is condensation within the unit.
+ Moving the unit suddenly from a cold place to
a warm place often results in condensation
forming. In the event of condensation forming,
remove the paper, turn off the power and leave
the unit for about one to two hours.
Printout is dirty.
The thermal head is dirty.
+ Clean the thermal head with the supplied head
cleaning sheet. (p. 17)
The printer stops printing
when it prints
continuously black
pictures.
This is likely to occur when the printer prints
continuously 15 or more black pictures. In such a
case, the buzzer sounds. This is because that the
protective circuit works against heat build-up of the
thermal head. Stop printing for a while.
While lines or smalt
letters on the screen are
not printed clearly.
ts the INPUT switch (DIP SWITCH (ii) settoB&
W when the input signal is a black and white
signal? (p. 9)
Small squares appear
over the whole screen.
Is the INPUT switch (DIP switch {Iq]) set to COLOR
when the input singal is a color signal? (p. 9)
The print-out is too dark
or too light.
* Is the 75Q switch (DIP switch (f) set correctly?
(p. 9)
+ ls the GAMMA selector set correctly? (p. 6)
The print-out seems
stretched.
The ASPECT switch (DIP switch (3)) is set to 1:1.
> Set to 4:3. (p. 8)
Others | 24

UP-890CE/890MD
SECTION 2
DISASSEMBLY
2-1.
REMOVING
THE
TOP
COVER
1)
Remove
the
top
cover
in
Pd
yeas
w)
the
direction
indicated
by
(M3
case
setscre
are
anaw:
9-2.
REMOVING
THE
DOOR
PANEL
AND
FRONT
PANEL
UNIT
@
Push
down
the
lock
arm
in
the
direction
of
arrow
®,
move
the
rail
in
the
direction
of
arrow
©,
and
release
the
lock.
(Open
the
slide
tray
in
the
direction
of
arrow
Vite Flat electric wires
& (from 7-pin connector (CN2) and
10-pin connector (CN301) on the
<> MA-19 board)
@ Screws (BVTT3X6)
Slide tray
@ Two hooks
ca
VA screws
(BVTT3X6)
@ Remove the front panel in
—S=—_—Y
arrow
©).
ca
panel
the direction indicated by
eae, eo

2-3. REMOVING THE MA-19 BOARD
@ Disconnect the nine connectors. Four screws
(CN51, CN101, CN102, CN201, (screw M3 with tooth W)
CN202, CN303, CN304, CN305, a Screws (B3X8)
and CN306) ea
© Four screws
(screw M3 with tooth W)
@ two screws
(screw M3 with tooth W)
‘ Rear panel
D Remove the MA-19 board in the
direction indicated by the arrow.
2-4. REMOVING THE MECHANISM BLOCK
@ Remove the power switch rod
in
the
direction
indicated
by
@
Remove
the
rod
stopper.
the arrow. \
Four screws (BVTT3X6)
~4¢—

2-5.
REMOVING
THE
SHIELD
CASE
AND
SWITCHING
REGULATOR
Three
screws
(BVTT3X6)
© Remove the switching regulator
in the direction indicated by
arrows ® and ©.
Four screws (PS3X6)
—417—

2-6. REMOVING THE THERMAL HEAD
eas (a screws (BVTT3X6)
“\
@ Remove the spring holder in
the direction indicated by the
arrow.
(Remove the spring holder in,
the direction indicated by the
arrow taking care not to lose
compression coil springs (B)
and (S).)
Compression coil spring (B)
N-pin flat wire
7} (tor FPC connector)
© Head shaft
— 18—

UP-890CE/890MD
SECTION 3
ADJUSTMENTS
Measuring Equipment Required
1. Oscilloscope
2. Frequency counter
3. Color-bar pattern generator (1410 : NTSC and 1411 : PAL signal generator)
4. Digital multimeter
3-1. HEAD VOLTAGE ADJUSTMENT
‘ Input signal : NTSC or PAL
signal
(1410 or 1411 signal generator)
-Turn on the POWER switch
while pressing the and
buttons at the same
time.
@ RV901
Switching regulator
Note:
Do not release the switch until
the buzzer sounds.
- For printing-out, press the
button.
‘Set DIP switches 1 through 12
to ON (lower position), and set
DIP switch 1 to OFF.
-Use the UPP-110HA paper.
‘Adjust the paper-type slide
switch to the right edge (IV).
Fig. 1
Adjust RV201 to make the 17-step
gradation signal smooth as shown in Fig. 1.
3-2. BRIGHTNESS CONTRAST ADJUSTMENT
- Input signal : 10-step signal @ RV1i/C-2 (MA-19)
(1410 or 1411 signal generator)
-
Set
the
and
@
RV1/C-2
(MA-19)
control
knobs
to
the
center
position.
Rv2 TP4
fe)
®
®
RV1
|
|
tie

3-3.
MOTOR
SPEED
ADJUSTMENT
‘ Input signal : Color-bar
(1410 or 1411 signal generator)
- Press the button to
measure the waveform at pin
© of connector CN3.
‘Set DIP switches 1 through
12
to
ON
(lower
position).
‘Use the UPP-110HA paper.
Note:
Do not adjust while a print
blank strip is fed.
@
RV201/C-3
(MA-19)
}-— 750+ 20Hz —+|
CN3 ©
— 20 —