Sony TRINITRON KV-M19D User manual

Note: The service manual for RM-658 and
RM-657 have been issued separately.
Television system
Color system
Channel coverage
Picture tube
Input
Output
Power consumption
Dimensions
Weight
Pie
aan
MICROFILM
SPECIFICATIONS
CCIR B, G and H
PAL SECAM
VHF E2—S20
UHF E21 — E69
Trinitron tube 90° degree deflection
Approx. 49.4cm (19 inches)
(Approx.45.8cm picture measured
diagonally)
21 — pin connector : CENELEC
standard AV connector
Earphone jack : minijack 21 — pin
connector : CENELEC standard
56Wh (kv-M19D)
61Wh (xkv-mMi9TD)
Approx. 462 X 436.5 x 462,5mm
(W/H/D)
Approx, 19.1lkg
Supplied accessories
Sound output
MODELS OF THE SAME SERIES
KV-M19D/M19TD
AEP Model
KV-M19D
Chassis No. SCC-B66C-A
KV-M19TD
Chassis No. SCC-B66D-A
-7 CHASSIS
RM—658 Remote Commander (1)
(KV—-M19D_ only)
RM—657 Remote Commander (1)
(KV-MI9TD only)
IEC designation R6 batteries (2)
3.5w (music power)
Design
and
specifications
are
subject
to
change
without
notice,
— Continued on page 2 —
TRINITRON« COLOR TV
SONY.

~ KV-M19D/M19TD
RM-658 RM-657
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[17 |éartn (video) |
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1
TABLE OF CONTENTS
Section Title Page Section Title Page
1. GENERAL 4. CIRCUIT ADJUSTMENTS
1—1. Function Of Controls :::+-++ssserserer ees 3 4—1, B Board Adjustments:::++++trrrreer eee 12
1—2. On The Remote Commander -:::-:+++-:> 4 4—2. D Board Adjustments::::+++ssrrreeeeeee 13
1—3. To Preset Channels+++-s++reretteereerees 4 4—3. V Board Adjustments --++s+r sess rere es 14
1-4, Viewing Teletext rrrcr crete rete teseeeenes 5 5. DIAGRAM
; 5-1. Circuit Boards Location -+-++++++++++++: 15
2. DISASSEMBLY 5-2. Schematic Diagram (1) --++++-+eerer eee 16
2-1. Rear Cover Removal--++-++++++++ereseees 6 5-8. Printed Wiring Boards (1) --:++t++eers: 19
2-2. B and V Board Removal:-:::---+++++°+:: 6 Schematic Diagram (2) -:++errereret ees 22
2—3. Picture Tube Removal-:--+++s+erssserees 7 Printed Wiring Boards (2) ---++++++++:: 25
2—4, Service Position s::+rrrrr steers trees eteees 8 5-4. Semiconductors::srrrs rte te teeter eens 28
3. SET-UP ADJUSTMENTS 6. EXPLODED VIEWS
3—1. Beam Landing:::+++errs ser err teeter eee 9 6-1. Chassissssccet ttre e etre cece eee eee eeeeees 29
3-2. Convergence -ssssrtrrrerr treet tees eeeee 10 G2. Bezel ts iwiscis shew Bee g enna certs on ees 30
3-3. FOCUS torts terest tees e eter ern ence eens 11
38-4, White Balance--++++rrrr rte etter ee reeees 12 7. ELECTRICAL PARTS LIST --seceeereeeer terres 31
SAFETY-RELATED COMPONENT WARNING !!
COMPONENTS IDENTIFIED BY SHADING AND MARK
A ON THE SCHEMATIC DIMGRAMS, 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.

KV-M19D/M19TD |
RM-657
RM-658
SECTION 1
GENERAL
1-1. FUNCTION OF CONTROLS
On the set
C3 On-screen display
Indicates program numbers and input mode ; CG.
Press the button to make the display appear on the
screen, and again to make it disappear. See also “On the
Remote Commander” below.
Bar display
Indicates the level of the user controls when they are
adjusted ; 1 volume, @ contrast or @ color.
power switch
To cut off the main electricity supply, press this switch.
Ensure correct operation by pressing the switch fully.
Remote control detector
Point the Remote Commander towards this detector.
standby indicator
Lights up brightly when the set is in standby mode.
On Screen display
Bar display
O
©)
Remote Control
detector
Inside the panel
—- 3§—
earphone jack (minijack mono)
preset button
analogue select buttons
Press repeatedly until the on-screen display of the
required adjustment appears ( 4 volume, O contrast or
@ color). Adjust by using the 4 + or — buttons.
input button
Press this button to view the input picture coming in
through the 21-pin connector or the & connectors on the
front panel. “(&” appears on the screen. Press ( again
or PROGR + / — to return to the TV mode.
Extra equipment can be connected to the TV using both
the 21-pin connector and the (€ input connectors, but
only one piece of equipment besides the TV should be
turned on at one time.
brightness control
Turn clockwise for more brightness or anticlockwise for
less.
Volume adjustment buttons + /—
Use these buttons to adjust the volume to the desidered
level.
PROGR +/— buttons
Use to scan the available channels. To turn on the TV
from standby mode without using the remote commander,
press any of these buttons.
Video “Audio input connectors (phono)
Connect td a VTR, micro-computer, etc.
© V (Yellow) video input
© A (Black) audio input (mono)
The TV button does not function on this set.

KV-M19D/M19TD
RM-658 RM-657
1—2. ON THE REMOTE COMMANDER
J
RM657 (KV~MI9TD only)
©
PROGR
To operate the Commander, point it toward the remote
control detector.
mute button
Use to mute the sound. Press <1 + or IK to restore the
sound.
9, 1—, 2—buttons
To select:
program 15, press 1— and 5,
program 25, press 2— and 5.
<— Reset button
Press to return color and contrast to factory-set levels.
standby button
Press to select standby mode. Use this facility to turn off
the set for short periods of time.
To return to TV mode, press TV or the program number
on the Remote Commander; there will be a slight delay
before the picture is restored. If the main power is turned
off when in standby mode, the indicator will take 2 to
6 seconds to go off.
1—3.TO PRESET CHANNELS
Use the buttons inside the panel. To open the panel, push
and pull the centre.
Manual Programing
To Tune in a Channel in Any Desired Program Position
1
2
3
Press > (preset) to select the presetting mode.
Select the desired program position by using the PROGR
+ or — button.
Press .4 + or — repeatedly until the TV program of the
desired channel appears.
Repeat steps 2 and 3 for all desired channels.
Press > again to return to the TV mode.
The buttons indicated in green are used for teletext
service, except the buttons * (PAGE+) and
* (PAGE-—) which are indicated in white.
RM658 (KV-M190 only)
t
1,2,°--9,1-,2-
buttons
d
PROGR
On-screen display button
Indicate the program number and the input mode. Press this
button to make the display appear on the screen, and press
the button again to make it disappear.
TV button (RM657 KV-M19TD only)
Press to change to the TV mode from standby, ( input
modes.
PROGR+//— buttons
Use to scan the available channels.
2 +/-— volume buttons
6.) color buttons
~
contrast buttons
ic input button 3
Press to view the input picture from the Cf connector or
C connectors. “C6” appears on the screen. Press (©
PROGR +/-— or a program number key to return to the
TV mode.
Program position flashes.
Indicates the approximate location
in the band of the channel being
tuned in. .
The number of upright segments
increase for .a higher-frequency
channel and decrease for a
lower-frequency channel.

1—4, VIEWING TELETEXT (xv-miorp onty)
To view the teletext service, use the Remote Commander.
RM-—657
has
teletext
buttons
indicated
in
green
teletext
operation are indicated in green.
1
Select
the
TV
channel
for
the
desired
teletext
service.
2 Press @/@ (TEXT/MIX) to display the
teletext service.
Once
G)/@)
has
been
pressed,
the
TV
channel
cannot be changed.
Key in the three digits for the desired page using
the number buttons. If an error is made, complete
the three digit sequence by keying in any digit.
Then
re-enter
the
correct
page
number.
The
requested teletext page is displayed.
To
return
to
the
TV
mode,
press
TV
on
the
Remote
Commander.
The
teletext
service
can
be
displayed
directly
from
the
standby
mode,
by
pressing
&)/@).
To
receive
the
teletext
service
of
a
different
TV
channel.
1 Press TV to return to the TV mode.
2 Select the desired TV channel.
3 Press &)/@.
To display the index page.
Press
(INDEX).
If
the
necessary
signal
is
not
being
broadcast, page 100 is displayed.
To access the next or preceding page
Press (PAGE+) or @ (PAGE-).
These
buttons
are
indicated
in
white
on
the
Commander.
To
superimpose
the
teletext
display
on
the
TV
picture.
Press
&)/@
twice
from
TV
mode.
Press
©)/@)
again
to
return
to
the
TEXT
display.
To
suppress
the
teletext
display
so
that
the
TV
picture
is
displayed.
Press
(TEXT
CL).
This
button
can
be
operated
from
both
the
TEXT
and
MIX
displays.
To
prevent
a
teletext
page
(subpage)
from
being
updated
/
changed.
Press
ES)
HOLD.
The
HOLD
symbol
“€)”
appears
at
the
top
left
of
the
screen.
To resume normal teletext reception, press Sea.
KV-M19D/M19TD |
RM-657
RM-658
To enlarge the teletext display.
Press
G3).
Press
once
to
enlarge
the
upper
half
of
the
display
;
press
again
to
enlarge
the
lower
half
of
the
display
;
press
again
to
return
to
the
normal
dispiay.
To
reveal
concealed
infomation
such
as
the
answers
to
a
quiz
Press (REVEAL)
Press again to conceal the answers.
To adjust the contrast of the teletext display.
Press @ + or — button.
To
watch
the
TV
program
while
waiting
for
a
requested
page to be displayed.
1 Request the new page.
2
Press
&
to
watch
the
TV
program.
The
requested
page
number
appears
at
the
top
left
of
the
screen.
When
the
requested
page
has
been
found,
the
page
number
is
displayed
on
the
top
left
hand
corner
of
the
screen.
(TV picture)
To view this page, press S/@.
To
have
a
requested
page
displayed
at
a
pre-determined
time.
1
Request
a
time
coded
page
(e.
g.
alarm
page).
2
Press
ED
(TP
ON).
“Tx
*&«%*&”
will
appear
at
the
bottom
of
the
screen.
3
Enter
your
request
time
with
the
number
buttons,
using
four
digits.
For
example,
07
:
30.
To
watch
the
TV
program
until
the
requested
time,
press
&.
At
the
requested
time,
the
page
number
will
be
displayed
at
the
top
of
the
screen.
To view this page, press S)/@).
To cancel the request, first ensure that the teletext page is
displayed, then press ®&@Q (TP OFF).

KV-M19D/M19TD
RM-658
RM-657
SECTION 2
DISASSEMBLY
2-1. REAR COVER REMOVAL
On the top of the rear cover, use a
screwdriver to push the tab (circled in
the figure) in the direction of the arrow
to release the cover holder.
2-2. B AND V BOARD REMOVAL
@Pull the two clips in the direction of arrow ©.
Remove the V board in the direction of arrow @.
(KV-—M18TD ONLY)
J
Ue the two clips in the direction of
arrow @. Remove the B board in the
direction of arrow ©.
@®Install the B board in the direction of arrow ©.

KV-M19D/M19TD |
RM-658 RM-657
2-3. PICTURE TUBE REMOVAL
© coil, demagnetization
@ spring ——__,_
@ D board
;
V
i
we
®
deflection
yoke
(KV—M19TD
ONLY)
@® speaker.
a
© two screws
gx ° two screws
@ anode cap
picture tube
cushion
@ Removing Procedures
Op
@ Tum 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 ©.
@® When one side of the rubber cap is 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©.
Anode button

KV-M19D/M19TD |
RM-658_ RM-657
2-4. SERVICE POSITION
D board
V BOARD
(KV-M19TD ONLY)

KV-M19D/M19TD ©
RM-658 RM-657
SECTION 3
SET-UP
ADJUSTMENTS
@
The
following
adjustments
should
be
made
when
a
Perform
the
adjustments
in
order
as
follows:
complete
realignment
is
required
or
a
new
picture
tube
1,
Beam
Landing
is
installed.
2,
Convergence
@
These
adjustments
should
be
performed
with
rated
3,
Focus
power
supply
voltage
unless
otherwise
noted.
4,
White
Balance
Note:
Test
Equipment
Required.
The
control
and
switch
below
should
be
set
as
follows
unless
1,
Color
Bar/Pattern
Generator
otherwise
noted
:
2,
Degausser
CQCONTRAST
control
srrrtereresess
80%
(or
Normal
by
3.
DC
Power
Supply
Commander)
4,
Digital
multimeter
ZL
BRIGHTNESS
control
+++
50%
5.
Oscilloscope
Fig.3-2
|
purity
control
Preparation
o>
|
tte
@
Set
the
side
of
the
unit
with
the
PICTURE
TUBE
so
that
it
faces
east
or
west
in
order
to
reduce
the
influence
of
external
magnetic
force.
@
Turn
the
power
switch
for
the
unit
ON
and
erase
the
magnetic force using a degausser,
3-1. BEAM LANDING
1,
Input
a
raster
signal
with
the
pattern
generator,
CONTRAST
BRIGHTNESS
2.
Turn
the
raster
signal
of
the
pattern
generator
to
red,
3.
Move
the
deflection
yoke
backward,
and
adjust
with
the
purity
control
so
that
red
is
in
the
center
and
blue
normal
and green are at the sides, evenly.
(Fig. 3-1 — 3- 3)
4,
Move
the
deflection
yoke
forward,
and
adjust
so
that
Disk magnets or
rotatable disk
magnets correct
these areas (a—d).
the
entire
screen
becomes
red.(Fig.
3
-
1!)
5,
Switch
over
the
raster
signal
to
blue
and
green
and
confirm
the
condition.
6,
When
the
position
of
the
deflection
yoke
is
determined,
tighten
it
with
a
deflection
yoke
mounting
screw.
7,
When
landing
at
the
corners
is
not
right,
adjust
by
using
the
magnet.(Fig.
3
-
4)
Fig.3-1

KV-M19D/M19TD |
RM-658 RM-657
3-2. CONVERGENCE
Preparation :
@ Before starting, perform FOCUS, H, SIZE and V. SIZE
adjustments,
@ Set BRIGHTNESS control to minimum,
@ Feed in the dot pattern.
(1) Horizontal and Vertical Static Convergence
Center dot
Center dot
V.STAT Magnet
RV705 H.STAT
1, Adjust H, STAT VR to coincide red, green and blue
dots on the center of screen,(Horizontal movement)
2. Adjust V, STAT magnet to coincide red, green and blue
dots on the center of screen.(Vertical movement)
3. If the red, green and blue dots do not coincide on the
center of screen with H. STAT VR, perform horizontal
convergence adjustment using H. STAT VR and V.
STAT magnet as shown below. (In this case, H. STAT
VR and V. STAT magnet effect each other.)
@ Tilt the V. STAT magnet and adjust static convergence
to open or close the V. STAT magnet.
4, When the V. STAT magnet is moved in the direction
of arrow @ and 0, red, green and blue dots move as
shown below.
oO © @ ®
O©-|\sO 8B B
Sar _ tt yt
ag ne
@
@
@
: |
RG B
N —~ |
N |
© ®
® © ‘ @ ®
lear RQ. BQ
G 5
&. : :
If the red and blue dots do not coincide with green dot,
perform following steps,
Move BMC magnet (a) to correct nsufficient
H, static convergence,
Rotate BMC magnet (b) to correct nsufficient
V. static convergence.
In either case, repeat Beam Landing Adjustmat.,
BMC magnet

(3) Dynamic Convergence Adjustment
Preparation :
@ Before starting, perform Horizontal and Vertical Static
Convergence Adjustment,,
1. Slightly loosen deflection yoke screw.
2. Remove deflection yoke spacers.
R GB B GR
(4) Screen-corner Convergence
a-—d: screen—corner
misconvergence =
3. Move the deflection yoke for best convergence as shown
below.
4, Tighten the deflection yoke screw.
5. Install the deflection yoke spacers,
Bs)
Q)
3-3. FOCUS
Adjust FOCUS so that the whole screen
is in best focus.
Affix a permalloy assy corresponding
to the misconverged areas.
Va
@
Permalloy.
3-4. WHITE BALANCE
(Screen (G2) Setting)
1, Input dot signals from the pattern generator.
2, Set the picture BRIGHTNESS control to the minimum
level.
3. Apply 140 V DC to the cathodes of R, G, and B from
an external power source,
4, While watching the picture, adjust the G2 volume
(RV703) immediately before the fly-back line disappears,
(White Balance Adjustment)
1, Input all-white signals from the pattern generator.
2, Adjust the BRIGHTNESS and COLOR controls to the
standard level.
3. Adjust the white balance using RV701 (B DRIVE) and
RV702 (G DRIVE).
In the following adjustments, the CONTRAST COLOR and
BRIGHTNESS controls are set to normal unless otherwise
specified,
SECTION 4
CIRCUIT ADJUSTM
RV301 DAR
L303 DAT
RV802 H.SIZE
RV553 H.FREQ
RV552 V.SIZE
RV501 V.CENT
RV801 H.CENT
Q04 SYNC BUFF
(KV-MI9TD
CTO1 CLOCK only)
co
T301 BEL
4—-1.B BOARD ADJUSTMENTS
REF OSC Adjustment (CT301)
1, Input a PAL COLOR BAR pattern.
2. Short circuit between pin @ of IC301 and ground,
3. Adjust CT301 to obtain color synchronization,
4, Remove the jumper wire from IC301,
1H DELAY LINE Adjustment (L303 DAT, RV301 DAR)
1, Input a PAL COLOR BAR pattern,
2. Connect the oscilloscope to pin @ (B-Y) of IC301 and
observe the waveform of the H block on the
oscilloscope,
3. Adjust L303 to minimize the double waveform outline,
6. L
ca
2 1, In
2. Cd
L
Before Adjustment After Adjustment
4, Input a PAL TEST COLOR BAR pattern.
5. Rotate the RV301 VR and adjust till the ANT PAL
part of the waveform matches the 0 level,

SECTION 4
CIRCUIT ADJUSTMENTS
RV301 DAR
L303 DAT
RV501 V.CENT
RV801 H.CENT
Q04 SYNC BUFF
CT01 CLOCK
(KV-MI19TD B
only)
1.B BOARD ADJUSTMENTS
F OSC Adjustment (CT301)
Input a PAL COLOR BAR pattern,
Short circuit between pin @ of IC301 and ground.
Adjust CT301 to obtain color synchronization,
Remove the jumper wire from IC301,
DELAY LINE Adjustment (L303 DAT, RV301 DAR)
Input a PAL COLOR BAR pattern.
Connect the oscilloscope to pin @ (B-Y) of IC301 and
observe the waveform of the H block on the
oscilloscope,
Adjust L308 to minimize the double waveform outline,
Before Adjustment After Adjustment
Input a PAL TEST COLOR BAR pattern.
Rotate the RV3801 VR and adjust till the ANT PAL
part of the waveform matches the 0 level.
RF AGC
L304 R-Y
L305 B-Y
1C301
RVO1 RGB LEVEL
RV302 SUB BRT
L306 SECAM ID
L308Y TRAP (4.43MHz)
7301 BELL
This part matches the 0 level.
Before Adjustment
After
Adjustment
0
level
L303 and RV301 affect each other. so repeat till the
conditions of both are met.
Y TRAP 4,25 MHz ADJUSTMENT (L308)
Input a SECAM COLOR BAR pattern.
Connect pin @ of IC302 to the oscilloscope and adjust
L308 so that the waveform level becomes minimum,
Pgh
rag
=
al)
Before Adjustment After Adjustment
SECAM ID Adjustment (L306)
Input a SECAM COLOR BAR pattern,
Connect a Digital Multimeter at pin @ of IC301,
Adjust L306 so that the indicator goes up to the
maximum,
@NePr
BELL FILTER Adjustment (T301)
1, Input a SECAM COLOR BAR pattern.
Connect an oscilloscope to the Q302 emitter,
Adjust T3801 so that the waveform becomes flat,
9 N
al
=
Before Adjustment After Adjustment
SECAM DISCRI Adjustment (L304 R-—Y L305 B-Y)
aS
Input a SECAM COLOR BAR pattern,
2, Connect an oscilloscope to pin @ of IC301.
3, Adjust L304 (R—Y) so that white and black parts
of the waveform of pin @ becomes 0 level,
4. Connect an oscilloscope to pin @ of IC301,
5. Adjust L305 (B—Y) so that white and black parts
of the waveform of pin © becomes 0 level,
Be ae
(white part) (black part) (white and black levels
should become 0 level)
ip
(Before Adjustment) (After Adjustment)
SUB BRT Adjustment (RV302)
1,
Input a PAL COLOR BAR signal.
2, Set CONTRAST and COLOR volume to a
minimum, and set the BRIGHTNESS volume
control to the mechanical center,
3. Slowly rotate SUB BRT (RV302) until the red
portion is faintly illuminated.
4-2. D BOARD ADJUSTMENTS
TU AGC (RF AGC)
Tune in air signals,
Adjust AGC VR (RF AGC) so that snow-noise
and cross-modulation just disappear from the
no —
picture,
RV801 H.CENT (HORIZONTAL CENTER)
n
a
H. FREQ (RV553)
Input a PAL COLOR BAR signal, then connect
an electrolytic capacitor (100 u/16V) between
Pin © and GND of IC551.
Adjust RV553 ( H. FREQ) to stop scrolling of
the picture in the horizontal direction,
After adjustment, remove the electrolytic capacitor.
“LESS
fo : suitable
fo: 15.625+50Hz
fo: too low
fo: too high
4-—3.V BOARD ADJUSTMENTS (kv-mi9tp only)
Clock Adjustment (CT01)
Raise pins @ and @ of CNV41..
Set up the TELE TEXT mode,
Adjust CTQ1 to stop the pictures from scrolling.
RGB Level Adjustment (RV0O1)
Set PICTURE to maximum,
Adjust RVO1 till the RGB output becomes
maximum,

SECTION 5 5—2, SCHEMATIC DIAGRAM (1)
DIAGRAMS
1
2
3
4
5
6
z
5—1.
CIRCUIT
BOARDS
LOCATION
A
B
Y-CHROMA ;
D ee V.H DEF ) i
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Note:
@ All capacitors are in u F unless otherwise noted. pF: uu F
SOWV or less are not indicated except for electrolytics. E
@ Indication of resistance, which does not have one for rating
electrical power, is as follows.
Pitch : 5mm
Rating electrical power : 1/4W
@ All resistors are in ohms. F
@ +i =: nonflammable resistor.
e A __ : internal component.
@ [(___] : panei designation and adjustment for repair.
@ All variable and adjustable resistors have characteristic
curve B, unless otherwise noted.
@ All voltages are in V. G
@ Readings are taken with a 10MQ digital multimeter.
@ Readings are taken with a PAL color—bar signal input.
no mark: PAL
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@ Voltage variations may be noted due to normal
production
tolerances.
H
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Reference information
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