Sony UP860 User manual

SONTY:.
VIDEO GRAPHIC PRINTER
UP-860
UP-8 7OMD
SERVICE MANUAL

CONTENTS
Section
1. GENERAL
1-1. Overview PR ARR ee eee ee ee eR ee
1-2. Location and Function of Parts and Controls --: 5
1-3. PrecautionS <cccccccccccccctce crt erences
1-4. Connection
1-5. Setting the DIP Switches occ e ewer cetasencesocernaceeres
1-6. Loading Paper ae Sec bln e de ein vin weiss sv 086 ge tee wey aay
1-7. Making Print-outs eee TE TTT TTEREREN TOT es ee
1-8. Maintenance cccccccrccccccc reece eee eee
1-9. Troubleshooting -:rccreccceeeceectecete rete tertteeeeees
2. DISASSEMBLY
2-1. Removal of Top Cover
2-2. Removal of Front Panel «---rrersrtrtereee
2-3. Removal of MA-14 board
2-4. Removal of Mechanism Block
2-5. Removal of Rear Panel and
Switching Regulator ‘Givilnve wyasle nnd or0 Boi w:duoyorniatt, shoes pila eS wis wre ee Sie:
2-6. Removal of Thermal Head <cccccccccecceteteerreees
3. ADJUSTMENTS
3-1, Head Voltage Adjustment eee eee eee eee
3-2. Brightness and Contrast Adjustment
3-3. Trap Adjustment PEO Rin eee wT ewe es saa eiele ne bss Releeeeees eo
3-4. Motor Speed Adjustment
Note: Please caution for the model serial No.
when changing the power supply section.
Model Serial Number
Less than 15891 (UP-860)
Less than 35201 (UP-870MD)
Switching
Regulator
1-413-694-11 to 13 1-413-694-14
SAFETY-RELATED COMPONENT WARNING !!
COMPONENTS IDENTIFIED BY SHADING AND MARK
A ON THE SCHEMATIC DIAGRAMS, EXPLODED
VIEWS AND IN THE 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. CIRCUIT ADJUSTMENTS
THAT ARE CRITICAL TO SAFE OPERATION ARE
IDENTIFIED IN THIS MANUAL. FOLLOW THESE PRO-
CEDURES WHENEVER CRITICAL COMPONENTS ARE
REPLACED OR IMPROPER OPERATION IS SUSPECTED.
$ XOS
Page
Section Page
4. DIAGRAMS
AE. © Sammiconductots: sis0eshise heres seeped nat oe dea 27
4-2. Circuit Boards Location «terete 31
4-3. Block Diagram ecdiaoh Sos Geianieeae at cblecte wise td ossiey dae Glee es 32
4-4. Printed Wiring Boards and
Schematic Diagrams: eee 35
5. CIRCUIT DESCRIPTION
5-1. Video Circuit Shia s Big wie wie oo ain Bbc bie bv WS SUED NESE S RTF e yo 5e 49
5-2. Oscillation Circuit Peer er re ere e rere rere rere eee er ee eee ees 50
5-3. Gate Array IC102 Peripheral Circuits -------+---- 51
5-4, System Control Section ree Te re ir ee ee a 53
5-5. Motor Drive Section IGisineie So's Oe eee. e Saids cotad WAY Teed Hwee 57
5-6. Thermal Head Section siuieie ste atts wool soe Uvio'e'y,s eng aty shows) s 58
6. EXPLODED VIEWS
6c. (Chassis: Section saeetiseieteescoe eee a 61
6-2. Print Mechanism Section (1) scree 62
6-3. Print Mechanism Section (2) cirri 63
6-4. Power Supply Section <-+:::ese:ceceeeseree ces 64
7. ELECTRICAL PARTS LIST ---eecrecrcececeeeee eee eeee 65
8. SWITCHING REGULATOR CHANGE oer 2
15891 and later (UP-860)
35201 and later (UP-870MD)
ATTENTION AUX COMPOSANTS RELATIFS ALA
SECURITE!
LES COMPOSANTS IDENTIFIES PAR UNE TRAME ET
PAR UNE MARQUE A\ SUR LES SCHEMAS DE PRINCIPE,
LES VUES EXPLOSEES ET LES LISTES DE PIECES
SONT D‘UNE IMPORTANCE CRITIQUE POUR LA
SECURITE DU FONCTIONNEMENT. NE LES REM-
PLACER QUE PAR DES COMPOSANTS SONY DONT LE
NUMERO DE PIECE EST INDIQUE DANS LE PRESENT
MANUEL OU DANS DES SUPPLEMENTS PUBLIES PAR
SONY. LES REGLAGES DE CIRCUIT DONT L'IMPOR-
TANCE EST CRITIQUE POUR LA SECURITE DU
FONCTIONNEMENT SONT IDENTIFIES DANS LE
PRESENT MANUEL. SUIVRE CES PROCEDURES LORS
DE CHAQUE REMPLACEMENT DE COMPOSANTS
CRITIQUES, OU LORSQU’UN MAUVAIS FONCTIONNE-
MENT EST SUSPECTE.

SAFETY CHECK-OUT
(US Model only)
After correcting the original service problem,
perform the following safety checks before releasing
the set to the customer:
1.
Check the area of your repair for unsoldered or
poorly-soldered connections. Check the entire
board surface for solder splashes and bridges.
Check the interboard wiring to ensure that no
wires are ‘“‘pinched’’ or contact high-wattage
resistors.
Check that all control knobs, shields, covers,
ground straps, and mounting hardware have
been replaced. Be absolutely certain that you
have replaced all the insulators.
Look for unauthorized replacement parts, par-
ticularly transistors, that were installed during a
previous repair. Point them out to the customer
and recommend their replacement.
Look for parts which, though functioning, show
obvious signs of deterioration. Point them out
to the customer and recommend their replace-
ment.
Check the line cord for cracks and abrasion.
Recommend the replacement of any such line
cord to the customer.
Check the condition of the monopole antenna
(if any).
Make sure the end is not broken off, and has
the plastic cap on it. Point out the danger of
impalement on a broken antenna to the
customer, and recommend the antenna’s
replacement.
To Exposed Metal
Parts on Set
AC
voltmeter
{0.75 V}
= Earth Ground
Using an AC voltmeter to check AC leakage.
LEAKAGE TEST
The AC leakage from any exposed metal part to
earth ground and from all exposed metal parts to any
exposed metal part having a return to chassis, must
not exceed 0.5mA (500 microampers).
current
Leakage
can be measured by any one of three
methods.
I.
A commercial leakage tester, such as the
Simpson 229 or RCA WT-540A. Follow the
manufacturers’ instructions to use these instru-
ments.
A battery-operated AC milliammeter. The Data
Precision 245 digital multimeter is suitable for
this job.
Measuring the voltage drop across a resistor by
means of a VOM or battery-operated AC volt-
The “limit” indication is 0.75 V, so
analog meters must have an accurate low-
voltage scale. The Simpson 250 and Sanwa
SH-63Trd are examples of a passive VOM that
is suitable. Nearly all battery operated digital
multimeters that have a 2V AC range are
suitable. (See Fig. A)
meter.

WT
1-1, OVERVIEW
SECTION 1
GENERAL
eee
The
UP-860/870MD
is
a
black
and
white
video
graphic
printer
that
can
be
used
to
print
images
displayed
on
video
equipment.
Clear,
consistent
print
quality
¢
High
definition,
8.9
dots/mm
printing
using
a
thermal
head
with
high-speed
drive
IC.
©
256
graduations
of
black
and
white
Fast printing
«
You
can
make
a
single
print-out
in
about
3.9
seconds
¢
You
can
make
a
maximum
of
11
copies
of
the
same
image
continuously.
Also,
you
can
save
your
paper
by
using
the
paper
saving
function.
Output modes
eee
¢
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
MODE
DIP
switch.
Automatic
video
signal
discrimination
The
type
of
input
black
and
white
video
signal
(EIA
or
CCIR)
or
input
color
video
signal
(NTSC
or
PAL)
is
automatically
discriminated
and
printed;
there
is
no
need
to
change
any
switch
manually.
Alarm buzzer
eee
The
alarm
buzzer
function
prevents
you
from
making
any
misoperation.
Loading
paper
easy
and
quickly
You
can
load
paper
just
by
opening
the
paper
lid
with
the
OPEN/CLOSE
button
and
placiang
the
paper
roll.

1-2. LOCATION AND FUNCTION OF PARTS AND CONTROLS
Refer to the pages indicated in the circles for details.
Front Panel
Power ON/OFF switch and indicator .
Press to turn the power on. The indicator is lit while
the power is on.
CONTR (contrast) contro! ®
[6]
Use this control. to adjust the contrast of the print-outs.
BRIGHT (brightness) control ®
Use this control to adjust the brightness of the print-
outs.
THRU/EE selector ®
Use this selector to select the video signal output
from the VIDEO OUT connector.
THRU: input signals are output directly to the video
monitor.
EE: input singnals are output to the video
monitor after being processed by the
printer’s circuitry.
POSI/NEGA selector @
Use this selector to switch between positive and
negative print-outs.
COPY button @
Press this button to output another copy of the
previous print-out
PRINT button @
Press this button to print the picture currently
displayed on the monitor.
The picture displayed when you Piess the PRINT
button is stored on memory.
PAPER EMPTY indicator
This indicator tights when the printer is out of paper.
OPEN/CLOSE button
Press to open or close the door. Also, press this button
to stop printing midway.
Paper feeder and cutter
Use to cut the printing paper.

Rear panel
[1]
REMOTE
connector
(stereo
minijack)..
UP-860
[6]
AC
IN
(AC
power
input)
connector
@
Connect
to
the
FS-20
foot
switch
(not
supplied)
for
Connect
to
a
wall
outlet,
using
the
supplied
AC
power
controlling
print
operation
from
a
distance.
cord,
[1]
REMOTE
connector
(stereo
minijack)..
UP-870MD
D
ADJ
(fine
adjusting)
contro!
Connect
to
the
RM-91
remote
commander
(supplied)
Usually,
there
is
no
need
to
use
this
control.
Use
i
for
controlling
print
operation
from
a
distance.
only
when
you
have
to
make
a
fine
adjustment
ofthe
density
when
you
cannot
control
the
brightness
using
[2]
GAMMA
selector
the
BRIGHT
control,
This selector changes the print mode to that for high-
density-printing paper . This selector is effective when
the PAPER DIP switch is set to TYPE II.
1 : Soft graduation
ll: Standard
Ill: Hard graduation
[4]
DIP switches ©
These switches set the print modes and functions.
[4] viDEO IN (video input) connector (BNC type) @
Connect to the video output connector of the video
equipment.
[5] VIDEO OUT (video output) connector (BNC type)
ts
Connect to the video input connector of the video
monitor. The output signal type depends on the setting
of the THRU/EE selector.

1-3,
PRECAUTIONS
eS
si
sesh
persnsesenrnet
On 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 the wall outlet if you will not be using it for a long time.
Disconnect the 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 the 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.
Otherwise, the thermal head may be damaged.
On printer carriage
Do
not
carry
and
move
the
printer
when
the
paper
roll
is
placed
in
the
printer.
If
you
do,
this
may
cause
trouble.
On installation
Provide adequate air circulation to prevent heat build-up.
Do
not
place
the
unit
on
surfaces
such
as
rugs,
blankets,
etc.,
or
near
materials
such
as
curtains and draperies.
Place the printer on a level, 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.

1-4. CONNECTION
|
i
I
|
|
|
|
|
|
Notes on connection
¢
Turn
off
the
power
to
each
device
before
making
connections.
*
Connect
the
AC
power
cord
last.
UP-870MD |
r
RM-91
remote commander
(supplied)
Color/monochrome
video monitor
to video output
Connecting cabie
connector
(not supplied)
Supplied coaxial to video input
connecting
cable
connector
(BNC
«
BNC)
to
VIDEO
IN
to
VIDEO
OUT
UP-860/870MD
to wall outlet
Supplied AC power cord

1-5. SETTING THE DIP SWITCHES
——
eee
Set
the
DIP
switches
according
to
the
required
print
mode.
Before
setting
the
DIP
switches,
turn
the
power
off.
Change
the
settings
using
a
small
pointed
tool
such
as
a
small
screwdriver.
The
factory
setting
are
as
follows.
[-]
PAPER switch
Leave the PAPER [1] switch at the factory-set position.
[x]
PAPER switch
Set
the
PAPER
[2]
switch
accoring
to
the
type
of
printing
paper
being
used.
For
details
of
the
paper,
see
page
12.
Type of printing paper Switch position
UPP-110S, UPP-110 TYPE I (normal)
UPP-110HD
TYPE
II
(high
density)
[3] POSTFEED 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
this
switch
to
OFF.
You
can
make
more
print-outs
per
roll
of
printing
paper
with
this
switch
set
to
OFF.
But,
you
have
to
take
out
and
cut
the
paper
yourself.

[4] ASPECT switch
Normally,
keep
this
switch
set
to
4:3.
When
the
aspect
ratio
of
the
video
signal
is
1:1, set this switch to 1:1.
The
print-out
will
be
longer
than
a
print-out
made
at
4:3.
[5] MEMORY switch
Normally
keep
this
switch
set
to
FRAME.
When
printing
fast-moving
pictures
(such
as
a
ball
being
thrown),
the
print-out
may
blur.
tf
this
happens,
set
this
switch
to
FIELD.
The
print-out
definition
wil
be
poorer
but
less
blurred.
[6] DIRECTION switch
Use
this
switch
to
select
whether
the
top
or
bottom
of
the
screen
is
to
be
printed
first.
Normally,
keep
this
switch
set
to
NORM.
Printing
is
done
from
the
bottom
of
the
screen.
To
start
printing
from
the
top
of
the
screen,
set
this
switch
to
REV.
10
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