Sony Trinitron PVM-8041Q, Trinitron PVM-8044Q Service Manual
SERVICE
MANUAL
us
Model
Canadian
Model
PVM-8041Q
Chassis No. SCC-E96A-A
PVM-8044Q
Chassis No.
SCC-E96C-A
SPECIFICATIONS
Vkteoslp»l
V
Color system
PAL, SECAM,
NTSCj.sa,
NTSC
4.43
Resolution PVM-8044Q
: 450
TV
lines
PVM-8041Q : 250 TV lines
Aperture correction
-4.0
dB
-
+6.0 dB
(at
3.0 MHz)
Frequency
response 6.0 MHz (-3.0
dB) at all inputs
Synchronization AFC
time constant 1
.0
msec.
Picture perf<mnanco
Normal scan
Underscan
H. linearity
V. linearity
Convergence
6%
over scan of
CRT effective screen
area
3%
underscan of CRT
effective screen
area
Less than
7.0%
(typical)
Less than
7.0%
(typical)
Central area: 0.43mm (typical)
Peripheral area:
0.53mm (typical)
Raster size stability H:
1.0%,
V: 1.5%
High voltage regulation
3.0%
Color temperature D65
R/R-Y, G/Y, B/B-Y: BNC connector
R, G, B channels: 0.7 Vp-p, +6
dB
Sync
on green :
0.3 Vp-p, negative,
75
ohms terminated
R-Y, B-Y channels: 0.7 Vp-p, ±6 dB
Y channel:
0.7 Vp-p, ± 6 dB
(Standard color bar signal
of 75%
chrominance)
EXT SYNC IN:
BNC connector
Composite sync 4 Vp-p, ±6 dB,
negative
Loop-through
outputs
Y/C OUT: 4-pin mini DIN connector
VIDEO OUT: BNC connector,
75 ohms terminated
AUDIO OUT
:
phono jack
EXT SYNC OUT: BNC connector,
75 ohms terminated
AUDIO OUTPUT 0.5W
Tally/remote
input TALLY/REMOTE:
8-pin mini DIN
connector
(See
the pin
assignment
on
page
2.)
Omrerat
aiM CMpirta
Inputs
Y/C IN: 4-pin
mini DIN
connector
(See the pin
assignment on
page
2.)
VIDEO
IN: BNC
connector
1 Vp-p ±
6dB, sync negative
AUDIO IN:
phono jack,
-5
dBs, less
than 47k
ohms
Power consumption
45 W Max
at AC
operation
38
W
at DC operation
—
Continued on
next
page
—
MICROFILM
TRINITRON COLOR VIDEO MONITOR
SONY.
PVM-8041Q/8044Q
Power
requirements
120V AC, 50/60 Hz
1
2V
DC, with the
Sony NP-1 A/1 B
battery
pack (not supplied)
or
AC-500 AC power
adaptor
(not supplied)
Operating
temperature
range
0
-
35
°C
Storage
temperature
range
-10--t-40°C
Humidity 0
-
90%
Dimensions
Approx.
21 7 x 21 7 x
352.5
mm (w/h/d)
(8
Vb X 8
®/8
X 1 4
inches)
not
incl.
projecting parts
and controls
Weight
Approx.
7.8 kg
(1
7 lb 3 oz)
not incl.
battery
packs
Accessory
supplied AC
power
cord
(1
)
Design
and
specifications are
subject to
change
without
notice.
Y/C IN
connector (4-pin
mini OiN)
TALLY/REMOTE connector (8-pin mini
DIN)
PteHo.
Signal
1 Blue
only
2 H/V
delay
3
GND
4
INT/EXT SYNC
5
Tally
6
Underscan/normal
scan
7 AJB or
RGB/component
8
RGB/LINE
Mi NO.
-
1
Y-input
1 Vp-p, sync
negative,
75 ohms
2
CHROMA sub-carrier-
input
300
mVp-p,
burst
Delay time between
Y
and C:
within 0±100 nseC.,
75 ohms
3
GND for Y-input
GND
4
GND for
CHROMA-
input
GND
For remote
control, connect the pin of
the desired function to
pin
3
(GND).
PVM-8041Q/8044Q
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.
2.
Check the
interboard
wiringtoensure
that no wires
are
“pinched”
or contact
high-wattage
resistors.
3. 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.
4.
Look for
unauthorized
replacement
parts,
particularly
transistors,
that
were installed
during
a
previous
repair Point
them out to
the
Customer
and recommend
their
replacement.
5.
Look for parts
which,
though
functioning, show
obvious
signs of
deterioration.
Point them
out to
the customer
and
recommend
their replacement.
6. Check
the line
cord for
cracks and
abrasion.
Recommend the
replacement
of any such
line
cord
to
the
customer.
7.
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.
8.
Check
the B+
and HV to see
they
areatthe
values
specified. Make
sure
your instruments
are
accurate; be
suspicious
of
your HV
meter
if
sets
always
have
low HV.
9.
Check the
antenna
terminals,
metal
trim,
“metallized” knobs,
screws,
and all other
exposed
metal
parts for AC
leakage.
Check
leakage as
described
below.
LEAKAGE
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 0.5
mA
(500
microampers).
Leakage
current can be
measured by
any one
of three
methods.
1. A
commercial
leakage
tester, such as
the Simpson
229 or
RCA
WT-540A. Follow
the
manufacturers’
instructions to use
these
instruments.
2. A
battery-operated
AC
milliammeter.
The Data
Precision
245
digital
multimeter is suitable
for this job.
3.
Measuring the
voltage drop across a
resistor by
means
of
a
VOM
or battery-operated
AC
voltmeter.
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. (Sec
Fig. A)
HOW TO
FIND A GOOD
EARTH
GROUND
A
cold-water pipe is
guaranteed
earth
ground; the
cover-plate
retaining
screw on most
AC outlet
boxes is also at
earth
ground. If the
retaining screw
is
to be
used as
your
earth-ground,
verify that
it is at
ground by
measuring the
resistance
between
it and a
coldwater pipe
with an
ohmmeter. The
reading
should be
zero ohms.
If
a
cold-water
pipe is
not accessible,
connect a
60-100
watts
trouble
light (not a
neon
lamp) between
the hot side
of the
receptacle
and the
retaining screw.
Try both
slots, if
necessary, to locate
the hot
side
of the line, the
lamp
should light at
normal
brilliance if the
screw is at
ground potential. (See
Fig. B)
To Exposed
Metal
Parts on Set
AC
voltmeter
(0.75V)
Earth
Ground
Fig. A.
Using an
AC
voltmeter to
check
AC
leakage.
O.tSpFy
1 .5kQ
—
3
—
PVM-8041Q/8044Q
TABLE OF CONTENTS
Section
Title Page
1.
GENERAL
1-1.
Features
5
1-2.
Location and Function of Parts and
Controls
6
1-3.
Power
Sources
9
2.
DISASSEMBLY
2-1
. Cabinet Removal
11
2-2.
B Board
Removal 11
2-3.
Switching Regulator Removal
12
2-4.
D Board Removal
12
2-5.
P Board Removal
13
2-6.
Rear
Assy Removal
13
2-7.
HA and FA Boards Removal
14
2-8.
Picture Tube Removal
15
3.
SET-UP ADJUSTMENTS
3-1.
Beam Landing
16
3-2.
Convergence
17
3-3.
Focus
19
3-4.
White Balance
19
Section
Title Page
4.
SAFETY
RELATED ADJUSTMENT
4-1
. Safety Related Adjustments
20
5.
CIRCUIT
ADJUSTMENTS
5-1.
D Board
Adjustments
22
5-2.
B Board Adjustments
25
5-3.
S
Board
Adjustments
30
6.
DIAGRAMS
6-1.
Frame Schematic Diagram
31
6-2.
Block Diagram
(1)
34
6-3.
Block
Diagram
(2)
37
6-4.
Circuit
Boards Location
42
6-5.
Printed
Wiring Boards
and Schematic Diagrams 42
6-6.
Semiconductors
78
7.
EXPLODED VIEWS
7-1
.
Chassis
80
7-2.
Picture Tube
81
8. ELECTRICAL
PARTS LIST
82
(CAUTION)
SHORT
CIRCUIT THE ANODE OF THE
PICTURE TUBE AND THE
ANODE CAPTOTHE
METAL CHASSIS,
CRTSHIELD, OR CARBON
PAINTED ON THE CRT, AFTER
REMOVING THE ANODE.
WARNING!!
AN ISOLATION
TRANSFORMER SHOULD
BE USED
DURING
ANY
SERVICETO AVOID POSSIBLE
SHOCK HAZARD, BECAUSE
OF LIVE CHASSIS.
THE CHASSIS OF THIS
RECEIVER IS DIRECTLY CONNECTED
TO THE AC POWER
LINE.
SAFETY-RELATED
COMPONENT WARNING !!
COMPONENTS IDENTIFIED
BY SHADING AND MARK
A
ONTHE
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
PROCEDURES WHENEVER CRITI-
CAL COMPONENTS
ARE REPLACED
OR
IMPROPER
OPERA-
TION IS SUSPECTED.
(ATTENTION)
APRES AVOIR DECONNECTE
LE CAP DE L'ANODE,
COURTCIRCUITER L'ANODE DU TUBE CATHODIQUE
ET CELUl
DE L'ANODE DU CAP
AU CHASSIS METALLIQUE DE L'APPAREIL,
OU
AU
COUCHE DE CARBONE PEINTE
SUR LE TUBE
CATHODIQUE
OU AU BLINDAGE DU TUBE CATHODIQUE.
ATTENTION!!
AFIN D'EVITER
TOUT RISQUE D'ELECTROCUTION PROVENANT
D'UN CHASSIS
SOUS TENSION, UN TRANSFORMATEUR
D'ISOLEMENT DOIT
ETRE UTILISE LORS DE TOUT DI^PANNAGE.
LE CHASSIS DE
CE R^CEPTEUR EST DIRECTEMENT
RACCORDi
A L'ALIMENTATION SECTEUR.
ATTENTION AUX COMPOSANTS RELATIFS ALA
S^CURIT^I!
LES
COMPOSANTS IDENTIFIES PAR
UNE
TRAME
ET PAR UNE
MAPQUE
A
SUR
LES SCHEMAS DE PRINCIPE, LES VUES
EXPLOSEES
ET LES LISTES DE PIECES CONT D'UNE
IMPORTANCE CRITIQUE
POUR LA SECURITE DU
FONCTIONNEMENT. NE
LES REMPLACER QUE PAR DES
COMPOSANTS
SONY DONT LE NUMERODE PIECE EST INDIQUE
DANS LE
present MANUEL
OU
DANS DES SUPPLEMENTS
PUBLIES par SONY. LES REGLAGES DE CIRCUIT DONT
L'IMPORTANCE 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
FONCTIONNEMENT EST SUSPECTE.
_
4
_
PVM-8041Q/8044Q
SECTION
1
GENERAL
1-1. FEATURES
Pouf
color
tytiims nnfiabto
'
The
monitor can display PAL,
SECAM, NTSCa.seand
NTSC4.43* signals.
The appropriate color
system is selected
automatically.
*
A signal of NTSC4.43
is
used
for playing back NTSC
recorded
video cassettes
with a video tape
recorder/player especially
designed for use
with this system.
Super Fine Pitch Trinitron
picture tube
(PVM-8044Q
only)
The Super Fine
Pitch Trinitron picture tube
provides
a
high
resolution
picture. Horizontal
resolution is more than 450
TV
lines
at
the
center of the picture.
blue only picture
The picture can
be
displayed in
blue and black only.
This
facilitates hue adjustment
and the observation
of video
noise.
Analog
RGB or component
(Y,
R-Y and
B-Y) signals
from
video
equipment can be input
through these
connectors.
The video
signal, split into
the chrorfiinance
signal
(C)
and
the
luminance signal
(Y), can be input
through this
connec-
tor, eliminating
the interference
between the
two signals,
which tends to occur
in
a
composite
video signal,
assuring
video quality.
Beam current feedback
circuit
The
built-in beam
current
feedback circuit assures
stable
white balance.
Comb filter
When NTSC
video
signals are
received,
a
comb filter
activates
to
increase
the
resolution,
resulting in
fine picture
detail without
color
spill or color
noise.
"TfcuioinaBte^tiiirniliwItlon
The
Y/C, VIDEO IN
and EXT SYNC IN
connectors are
terminated at
75 ohms inside,
when no
cable is connected
to
the loop-through
output
connectors. When a
cable is
connected to
an output
connector, the
75-ohm termination
is
automatically
released.
EIA itandard
19-Inch rack
mounting
By using
an MB-507
mounting
bracket
(not supplied),
the
monitor
can
be
mounted
in an EIA
standard
19-inch rack.
For
details on
mounting, see
the
instruction manual of
the
MB-507.
For llw
CuDiioiinim
In iHo UtlA
INFORMATION
This
equipment
has
been tested
and
found
to
comply
with
the limits
for
a
Class
A
digital device,
pursuant to
Part 1 5
of
the
FCC Rules.
These
limits are
designed to
provide
reasonable
protection
against
harmful
interference
when the
equipment is
operated
in
a
commercial
environment.
This
equipment
generates,
uses,
and can
radiate radio
frequency
energy and,
if not
installed
and used
in accordance
with the
instruction manual,
may
cause
harmful
interference to
radio
communications.
Operation of
this
equipment in a
residen-
tial
area is
likely
to
cause
harmful
interference
in which case
the
user will be
required to
correct the
interference at
his
own expense.
You
are
cautioned that
any
changes or
modifications
not
expressly
approved
in this manual
could void
your authority
to
operate
this
equipment.
For lh«
Customers
in Canada
This
apparatus
complies
with the
Class A
limits for
radio
noise
emissions set out
in
Radio
Interference
Regulations.
—
5
—
PVM-8041Q/8044Q
1-2.
LOCATION AND FUNCTION OF PARTS AND CONTROLS
Front
[U
SYNC
INT/EXT
(sync internal/
extenal)
selector
gg
LINE/RGB
Input
selector
[E
A/B,
RGB/Y
R-Y B-Y
input
seiector
ftici
(9
Q)
9
I
BLUE
ONLY
selector
E
UNDER
SCAN
selector
•
Eil
H/V
DELAY
selector
E
R/G/B
BIAS
and
GAIN'
adjustment
controls
©©©©©©El
Q]
Tally
lamp
-{2]
POWER
switch and
indicator
-[H
VOLUME
control
-[4] CONTR
(contrast)
control
-[5]
PHASE
control
-E
CHROMA
control
“H]
BRIGHT
(brightness)
control
-E
APER (aperture)
control
E
Tally lamp
E
POWER
switch and
indicator
Depress
to turn the monitor
on. The indicator
will light
up
in
green.
The POWER
indicator also
functions
as
the
battery
indicator. When the
internal battery
becomes weak
or
the power
supplied through the
DC12V IN jack
decreases,
the Indicator
flashes.
E
VOLUME control
Turn this
control clockwise
or
counterclockwise
to obtain
the
desired volume.
E
CONTR
(contrast) control
Turn
clockwise
to make the contrast
stronger and
counterclockwise
to make it weaker.
E
PHASE
control
This control
is effective only for
the NTSCa.ss
and
NTSC4.43 color
systems. Turn
clockwise
to
make
the skin
tones greenish
and counterclockwise
to make them
purplish.
Notes
•
The PHASE,
CHROMA and APER
control settings have
no
effect
on
an
analog RGB signal.
•
The PHASE
control has no effect
on component singals.
•
The PHASE
control setting is effective
only for the NTSC
system.
E
CHROMA
control
Turn
clockwise
to make the color
intensity
stronger
and
counterclockwise
to make it
weaker.
E
BRIGHT
(brightness)
control
Turn clockwise
for more
brightness and
counterclockwise
for less.
E
APER (aperture)
control
Turn clockwise
for more
sharpness
and
counterclockwise for
less.
E
SYNC INT/EXT
(sync internal/external)
selector
Keep this
button released
(INT)
to
operate
the monitor
on the sync
signal from
the displayed
composite video
signal.
Depress
this
button (EXT)
to
operate
the monitor
on an
external
sync signal fed
through the EXT
SYNC
connec-
tor
on the rear
panel.
—
6
—
PVM-8041Q/8044Q
LINE/RGB
input selector
Select the
program
to be monitored. Keep
this
button
released
(LINE) for
a signal fed through
the LINE
A or
LINE B connectors.
Depress
this button
(RGB) for
a
signal
fed through
the RGB connectors.
[E
A/B,
RGB/Y R-Y B-Y
input selector
When the
LINE/RGB input
selector is
set to LINE,
keep
this button released
(A) for
a signal fed
through the
LINE
A connectors.
Depress this
button (B) for
a signal
fed
through the LINE
B connectors.
When
the LINE/RGB
input
selector is
set to RGB,
select
the RGB signal
or the
component signal
which is
fed through
the RGB
input connectors.
Keep
this button
released
(RGB) for the
RGB signal. Depress
this
button
(Y R-Y
B-Y) for the
component
signal.
E
BLUE
ONLY
selector
Depress this button
to turn off the
red and green
signals.
A blue signal
is displayed
as an apparent
monochrome
picture
on the screen.
This facilitates
“chroma”
and
“phase” control
adjustments
and the observation
of video
noise.
[E
UNDER SCAN selector
Depress this button
for underscanning. The display size
is
reduced
by
approximately 3% so that four corners of
the raster are visible.
H
H/V DELAY
selector
Depress this
button
to
observe the horizontal and
vertical sync signals
at
the same time. The horizontal
sync signal is
displayed In the left quarter of the screen;
the vertical sync signal is displayed near the center of
the screen.
[E
R/G/B BIAS and GAIN
adjustment controls
Used for white
balance fine adjustment.
BIAS and GAIN
controls are provided for the R (red),
G (green) and
B (blue) screens.
BIAS: Adjust the white
balance and brightness of the
screen at
the lowlight.
GAIN: Adjust the white balance
and brightness of the
screen at
the highlight.
—
7
—
PVM-8041Q/8044Q
[H
LINE A
connectors
To monitor the
signal fed
through these
connectors,
keep
the LINE/RGB
selector
and the A/B,
RGB/Y R-Y B-
Y selector
on the front
panel released
(LINE and
A).
Note
The Y/C IN
connector has a
priority over the
VIDEO IN
connector.
When
a
plug is
connected to
the Y/C IN
connector, the
VIDEO
IN connector is
automatically
disconnected.
liE
LINE B
connectors
To
monitor the
signal fed through
these connectors,
keep
the
LINE/RGB selector
released (LINE)
and
depress the /VB,
RGB/Y
R-Y B-Y selector
(B) on the
front panel.
VIDEO IN (BNC):
Connect to
the video output
of a
video
camera,
VCR or other
video equipment.
VIDEO
OUT (BNC):
Loop-through output
of the
VIDEO
IN connector.
Connect to
the video input
of a VCR
or
another
monitor.
AUDIO IN (phono
jack):
Cohnect
to
the
audio output
of
a
VCR or a
microphone
(through a
suitable
microphone
amplifier).
AUDIO
OUT (phono
jack): Loop-through
output
of the
AUDIO IN connector.
Connect to
the
audio input of a
VCR or another
monitor.
El
TALLY/REMOTE
connector
(8-pln
mini DIN)
Connect to
the tally
output
of
a
control
console,
special-effect
generator, etc.
The tally lamp
on the
front
panel
will
be
turned
on and
off
by
the
connected
equipment.
This connector
can be
used
for connecting
a
remote
controller.
For the
pin assignment
of this
connector,
see
“Specifications”
on page
2.
Oil
EXT SYNC
(external sync)
connectors
IN (BNC):
When
this monitor
operates
on an
external
sync
signal,
connect the
reference
signal
from
a
sync
generator to
this
connector.
In this case,
depress the
SYNC
INT/EXT selector
(EXT)
on the
front panel.
OUT (BNC):
Loop-through
output
of the
EXT
SYNC IN
connector.
Connect to
the
external sync
input of
video
equipment to
be
synchronized
with
this monitor.
V HOLD
(vertical
hold)
control
Turn to
stabilize the
picture if it
rolls
vertically.
IE
DC
12V IN jack
(XLR,
4
pin)
Connect
the Sony
AC-500 AC
power
adaptor
(not
supplied).
—
8
—
PVM-8041Q/8044Q
RGB/component
input connectors
R/R-Y, G/Y, B/B-Y
(BNC), AUDIO
(phono):
To monitor a
signal fed through
these connectors,
depress the LINE/RGB
selector on the
front panel
(RGB).
When the SYNC
INT/EXT selector on the front
panel is released
(INT), the monitor operates
on the
sync signal
from the G/Y
channel.
To
monitor the analog
RGB signal
Connect
to
the
analog RGB signal outputs
of
a
video
camera having
no sync signal. Keep
the A/B, RGB/Y
R-Y B-Y
selector on the front
panel released (RGB).
To monitor the
component
signal
Connect to
the
R-Y/Y/B-Y component
signal
outputs
of
a
Sony BetaCam
video camera.
Depress the A/B, RGB/Y
R-Y
B-Y selector on the
front panel (Y R-Y
B-Y).
I
AC IN socket
Connect the supplied AC power cord
to
this socket and
to a
wall outlet.
@
EJECT
buttons
Press the EJECT button upwards
to
remove the battery
pack.
BATTERY compartments
Insert the NP-1 A/1 B battery pack (not supplied).
1-3.
POWER
SOURCES
House Current
Connect the supplied AC power cord to the AC IN socket
and
to a
wall outlet. When the AC power
cord is
plugged
into the AC IN socket,
the
battery pack (if installed) or
the AC power adaptor
(if connected) is automatically
disconnected.
Rechargeable
Battery
The monitor can operate
with one or two battery packs.
For extended use, two
battery packs are recommended.
To remove the battery pack, press the EJECT button
upwards.
For
charging,
use
the BC-1
WA
battery
charger (not
supplied) for the NP-1 A or the BC-1WB for the NP-1B.
Note
Make sure that the AC power cord and the AC power
adaptor are disconnected from the monitor. Otherwise, the
monitor cannot operate on the battery pack(s).
—9—
PVM-8041Q/8044Q
MEMO
—
10
—
PVM-8041Q/8044Q
SECTtON 2
DISASSEMBLY
2-1.
CABINET
REMOVAL
®
Four screws (claw)
2-2.
B
BOARD REMOVAL
—11—
PVM-8041Q/8044Q
2-3.
SWITCHING REGULATOR
REMOVAL
2-4.
D BOARD
REMOVAL
—
12
—
PVM-8041Q/8044Q
2-5.
P
BOARD
REMOVAL
CN802
2-6.
REAR
ASSY
REMOVAL
©
Four
screws
—13—
PVM-8041Q/8044Q
2-7.
HA AND
FA BOARDS
REMOVAL
FA board
—
14
PVM-8041Q/8044Q
2
-
8
.
PICTURE
TUBE
REMOVAL
(D
CA board
Note
;
Caution
for
ANODE CAP
installation.
3.
Use KE-490RTV
(RTV
silicone
adhesive,
SHIN-ETSU
When
you replace PICTURE
TUBE or FBT,
remove
RTV on
CHEMICAL).
ANODE
CAP so that
PICTURE
TUBE and
FBT can be
separated.
Part.
No.
Description
Please adhere
picture
tube
and
anode
cap in
accordance with
the
7-322-065-19
Silicone (RTV)
KE-490W
following
procedure.
4.
Install
ANODE
CAP.
5. Adeguately
apply RTV
to
the
entire picture
tube anode
area,
ADHERING
PROCEDURE
OF ANODE
CAP.
piace the
anode
cap onto
the picture
tube and
push it
down
1. Clean
PICTURE
TUBE ANODE
CAP
with ethnaol
to remove
securety
so that
no air
pockets remain
beneath
the
cap.
original RTV.
6. Dry
more
than 12
hours
at room
temperature.
2. Dry
clean face
with air.
•
REMOVAL
OF
ANODE-CAP
•
REMOVING
PROCEDURES
©
Turn
up
one
side of
the rubber
cap in
the direction
indicated
by the arrow®.
@
Using
a
thumb
pull
up the rubber
cap
firmly in
the direction
indicated
by
the
arrow
®.
•
HOW
TO HANDLE
AN ANODE-CAP
©
Don’t hurt
the surface
of anode-caps
with sharp
shaped
material!
@
Don’t
press the
rubber hardly not
to
hurt inside
of
anode-caps!
A
metal fitting
called
as
shatter-hook
terminal is
built
in
the rubber.
®
Don’t turn
the foot of rubber
over hardly!
separated from
the anode
button,
the
anode-cap
can
be removed
by turning
up the rubber
cap and
pulling
up it in
the direction
of the arrow
©.
—
15
—
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