Sony TRINITRON KV-16WT1 User manual

SERVICE MANUAL BE=4 cuassis
MODEL COMMANDER _ DEST. CHASSIS NO. MODEL COMMANDER _ DEST. CHASSIS NO.
KVieWit
“OR
oe
OWT
IR
ee
ee
kK
|/-
16WT
1
A
RM-836
Italian
SCC-H64C-A
K\-
1
6WT1
U
RM-836
UK
SCC-H93A-A
k
|/-
7
6WT
1
K
RM-836
OIRT
SCC-H92A-A
|
TRINITRON COLOR TV
SONY.

KV-16WT1
ITEM
MODEL
_
Television
System
Channel
Coverage
Colour
System
|
|
PAL,
SECAM
VHF:
£2-E12,
$1-S20
:
AEP
B/G/H
UHF:
E21-£69,21-S41
NTSC3.58/4.43
(video
input
only)
PAL
:
VHF:
E2-E12,
S1-S20,
A-H2
Italian
B/G/H
UHF:
E21-E69
NTSC3.58/4.43
(video input
only)
B/G VHF:
E2-E12
UHF:
E21-E69
PAL, SECAM
OIRT
B/G,
D/K
Hyper:
$1-S41
NTSC3.58/4.43
D/K
VHF:
R1-R12
UHF:
R21-R69
(video
input only)
PAL
UK
I
UHF:
E21-E69
NTSC3.58/4.43
(video
input only)
Power
Consumption
37W
37W 37W
52W
SPECIFICATIONS
Picture
Tube
Hi-Black
Trinitron
[OUTPUTS]
Approx.
40
cm
(16
inches)
2
Headphone
jack
:
minijack
(mono)
(Approx. 36 cm picture measured
diagonally)
86° -deflection
Input/Output Terminals
[INPUTS]
21-pin connector (CENELEC standard)
- audio / video input
- RGB input
Front connectors
-2) Video (phono jack)
© Video (phono jack)
Sound output 4W (RMS)
5W (music power)
475x335x398 mm approx.
Approx. 11.5kg
RM-836 Remote Commander (1)
IEC designated batteries (2)
Aerial (1)
Aerial connector with built-in 300-75
ohm matching transformer (1)
TELETEXT
Dimensions
Weight
Supplied accessories
Other features
[RM-836]
Remote control system
Power requirements
Dimensions
Weight
infrared control
3V dc (2 batteries) R6 (size AA)
Approx. 210x45x24 mm (w/h/d)
Approx. 90g (Not including batteries)
Design and specifications are subject to change without notice.

Model
name
=
KV-16WT1
KV-16WT1A
Sadehe
AS
KV-16WT1U
KV-16WT1
KV-16WT1R
Item
Pal Comb OFF OFF OFF OFF
PIP OFF OFF OFF OFF
[Res Priority i ON ON ON ia ON
Woofer Box OFF OFF OFF OFF
Scart 1 ON ON ON ON
Scart 2 OFF OFF OFF OFF
Front in (3) ON ON ON ON
Scart 4 OFF OFF OFF OFF
Projector OFF OFF OFF OFF
AKB in 16:9 mode | ON [| on | ON ON
Norm | OFF OFF ON
Norm D/K OFF OFF ON OFF
Norm AUS OFF OFF OFF OFF
Norm L OFF OFF OFF OFF
Norm SAT OFF OFF OFF OFF
Norm M OFF OFF OFF OFF
Language Preset German | italian | OIRT English
WARNING ( KV-16WT1U only )
The flexible mains lead is supplied connected to a B.S. 1363 fused
plug having a fuse of 5 AMP capacity. Should the fuse need to be
replaced, use a 5 AMP FUSE approved by ASTA to BS 1362, ie
one that carries the mark.
IF THE PLUG SUPPLIED WITH THIS APPLIANCE IS NOT
SUITABLE FOR YOUR SOCKET OUTLETS IN YOUR HOME.
IT SHOULD BE CUT OFF AND AN APPROPRIATE PLUG FITTED.
THE PLUG SEVERED FROM THE MAINS LEAD MUST BE
DESTROYED AS A PLUG WITH BARED WIRES IS
DANGEROUS IF ENGAGED IN A LIVE SOCKET OUTLET.
When an alternative type of plug is used it should be fitted with a 5 AMP
FUSE, otherwise the circuit should be protected by a 5 AMP FUSE at the
distribution board.
How to replace the fuse.
Open the fuse compartment with the
screwdriver blade
and replace the fuse.
FUSE

KV-16WT1
21 pin connector ( G1 )
>,
21
is 20
/ 19 St
18 |
17 4
16
15 —
sy 14
13 ——
emacs 12
11 o—
=a 10
9 —
—— 8
7 —
es 6
5
Ss 4
3 —
| co 2
fo
A zy
Signal Signal level
Audio output B (right) Standard level: 0.5Vrms
Output impedance:less than 1kohm*
Audio input B (right) Standard level:0.5Vrms
Input impedance:More than 10kohms*
Audio output A (left) Standard level:0.5Vrms
Output impedance:less than 1kohm*
Ground (audio)
Ground (blue)
Audio input A (left) Standard level:0.5Vrms
Input impedance:More than 10kohms*
Blue input 0.7V+3dB, 75ohms, positive
Function select (AV contro!) High state (9.5—12V):Part mode
Low state (O—2V):TV mode
Input impedance:More than 10kohms
Input capacitance:Less than 2nF
Ground (green)
Green Green signal:0.7V+3dB.
75ohms, positive
Ground({red)
i=)
= Le)
=
1 Ground (blanking)
1 Red input 0.7V+3dB, 750hms, positive
(S signal) croma input 0.3V+3dB, 75ohms, positive
Blanking input (Ys signal) High state (1—3V)
Low state (O—0.4V)
Input impedance:75ohms
Ground (video output)
Ground (video input)
Video output 1V+3dB, 75o0hms, positive
Sync:0.3V(-3, +10dB)
Video input 1V+3dB, 75ohms, positive
Sync:0.3V(-3, +10dB)
Video 1V+3dB, 75ohms, positive
Input/Y (S signal) Sync:0.3V(-3, +10dB)
Common ground (plug, shield)
© Connected @ Not Connected (open) * at 20Hz - 20kHz
Np =
ie) = ae le =
oO © foe) N a a > wo

KV-16WT1
TABLE OF CONTENTS
Section Title Page Section Title Page
1. GENERAL 5. DIAGRAMS
Getting Started! i. coisa nitreay. ct heteae horse hceeaacecusoeiees 6 5-1 ;.. Block Diagratiis 22:2, .siessiaesr terest tenatiael deagsteieacetivsss 25
TV Operations ie 8 5-2. Circuit Boards Location... cee eeceeeeseteeeseeeteeeees 29
Teletext Operation 0... cece eeeseeeeeeeeeenereeseseeneenenees 9 5-3. Schematic Diagrams and Printed Wiring Boards ....... 29
MENU Operation 00... cecescsesescesesceeseenerseseneteeneesensenenees 9 BA BOaid cesicswesvsssestesevnsesiyianuavensscenvs das setetenciemiaeanaey 33
Optional Connections .... 12 39
Additional Information 13 4]
5-4. SemicOnductOLs oo. ee eeceseeeeseeestetetseceeeseseeeenenenens 43
2. DISASSEMBLY
2-1. Rear Cover Removal .0....ccccccescsssssesseseetssessssessesteseeseaes 14. 6. EXPLODED VIEWS
2-2. Service Position ............ en PAs 6-1. Chassis and Picture Tube oo... cccccccsseesssercsresseseeree 44
2-3. Picture Tube Removal 15
7. ELECTRICAL PARTS LIST ...........cccesseeseeneeseees 46
3. SET-UP ADJUSTMENTS
3-1. Beam Landing oc eceecscssessesessescsseseeseacescsesseeereess 16
3-2. Convergence wee 17
Bedie UPOCUS ts sticis arcedeascveacotase gh bscvecesahats sat adeateavnnsaneaeaheetaees 18
3-4. Screen (G2), Drive,
Sub Colour and Sub Brightness .........0.0cccceseseeeeeees 18
3-5. White Balance Auto Adjustment ...0..... cc cceeeeeeeeee 19
4. CIRCUIT ADJUSTMENTS
4-1. Electrical Adjustment oo... cceceseeceeseeeeeeteeeeeteeeeeee 20
4-2. Test Mode 2: eee ay |
4-3. BE-4 Self Diagnostic Software 0... ceeeseseeeeteeeteees 23
CAUTION ATTENTION
SHORT CIRCUIT THE ANODE OF THE PICTURE TUBE AND THE
ANODE CAP TO THE METAL CHASSIS, CRT SHIELD, OR CARBON
PAINTED ON THE CRT, AFTER REMOVING THE ANODE.
WARNING !!
AN ISOLATION TRANSFORMER SHOULD BE USED DURING ANY
SERVICE TO 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 AN ON THE
SCHEMATIC DIAGRAMS, EXPLODED VIEWS AND, IN THE PARTS
LIST ARE CRITICAL FOR SAFE OPERATION. REPLACE THESE
COMPONENTS WITH SONY PARTS WHOSE PART NUMBERS
APPEAR AS SHOWN IN THIS MANUAL OR IN SUPPLEMENTS
PUBLISHED BY SONY.
APRES AVOIR DECONNECTE LE CAP DE L'ANODE, COURT-
CIRCUITER L'ANODE DU TUBE CATHODIQUE ET CELUI 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'SOLEMENT DOIT ETRE UTILISE LORS DE TOUT DEPANNAGE.
LE CHASSIS DE CE RECEPTEUR EST DIRECTEMENT RACCORDE
A L'ALIMENTATION SECTEUR.
ATTENTION AUX COMPOSANTS RELATIFS ALA
SECURITE!!
LES COMPOSANTS IDENTIFIES PAR UNE TRAME ET PAR UNE
MARQUE //\ SUR LES VUES EXPLOSEES ET LES LISTES DE
PIECES SONT D'UNE IMPORTANCE CRITIQUE PUR LA SECURITE
DU FONCTIONNEMENT. NE LES REMPLACER QUE PAR DES
COMPOSANTS SONY DONT LE NUMERO DE PIECE EST INDIQUE
DANS LE PRESENT MANUEL OU DANS DES SUPPLEMENTS
PUBLIES PAR SONY.

Th ting instructi tioned h rtial abstracts fi
SECTION
1
GENERAL
the
Operating
Instruction
Manual.
The
page
numbers
of
the
Operating Instruction Manual remain as in the manual.
MO
e 8
69000 & O09
@ @86 @686
io)
RM-836
SONY

24
Getting Started
Please open the flap at the front and at the back of the
Instruction Manual for illustrations of the TV set and
the Remote Commander. Letters in boxes refer to the
buttons on the TV set, numbers in circles to the buttons
on the Remote Commander.
step? Ld
Connecting the Aerial
(if you.connect a VCR, skip to step 3).
Connect an external aerial to the socket 17 fi].
Where an extemal aerial is not available
connect the indoor aerial supplied:
1 Insert the supplied aerial into the opening on top of
the set.
2 Loosen the screws of the aerial clips, insert the aerial
clips and tighten the screws.
3 Connect the aerial to the socket 1f [EJ on the rear of
the set.
4 Adjust the aerial for optimum reception.
step?
Inserting the Batteries into the
Remote Commander
Always remember to dispose of
used batteries in an environmental
friendly way.
We recommend that you
tune in the VCR signal to
programme number “0”.
For details see “Presetting
Channels Manually” on
page 31.
25

26
—_
££
+«~~&@&;«3#37»
Presetting Channels
Automatically
TV searches for all available channels.
If manual tuning is preferred see Menu
option - Presetting Channels Manually.
1 Plug into mains.
Depress power switch © [ on TV set.
2 Press and hold on TV set for 2 seconds.
Auto tuning starts and screen shows.
When
Auto
tuning
stops,
the
programme
position
1
is
displayed.
TV Operation
ea
I
a
I
a
I
BET
TV Operation
This section explains functions used whilst watching TV. Most operations are carried
out using the Remote Commander (numbers in circles). All basic functions are also
available on the TV set (letters in boxes).
To Press
Switch on OMonTv
Switch off temporarily o®
TV is now in standby mode, © indicator Ej on
TV lights.
Switch on again © 9, PROGR +/-@ fH or any number
button @
Switch off completely © (Gon TV
To save energy we recommend switching off
completely when TV is not in use.
Select programmes PROGR +/- @ EH or number buttons @
For double digit numbers press -/-- @ then the
number e.g. For 23, press -/-- @ then 2 and 3.
Display the programme number ®@
Press again to make programme number
disappear.
Adjust the volume —1/-0OR
Mute the sound «K®
Press again to restore sound.
View video input “e080
Press again to return to TV programme.
Change the Screen format
Press repeatedly £4, Oto change the screen
format as follows:
Zoom 1 (imitation of 16:9 for 4:3
broadcasts)
Zoom 2 (imitation of 16:9 for movies
broadcast in cinemascopic format) >
Zoom 2 t (whilst in Zoom 2 mode, press
the green button to scroll the screen up
to show the subtitles. Press the blue button
to return to Zoom 2).
Zoom 3 (for 16:9 broadcast) -»
4:3 (normal 4:3 format).
27

28
Teletext Operation
Viewing Teletext
Teletext is an information service broadcast by TV stations.
1. Select the channel which carries the teletext service you
wish to receive.
2 Press © @ to switch on teletext.
3 Input three digits for the page number using the
programme number buttons @ or PROGR +/- © &.
4 Press (2) @ to switch off teletext.
Teletext errors may occur if the broadcasting signals are weak.
Using Other Teletext Functions
Superimposing teletext on the TV
Press © @ once in teletext mode or twice in TV mode to
superimpose teletext on the TV screen.
Press © @ again to cancel superimposing.
Freezing a teletext subpage
Press @ @ (HOLD) to freeze the subpage. Freezing the page prevents the
information that is displayed from being updated.
Press @ @ to cancel HOLD and allow update to continue.
Revealing concealed information (eg: answers to a quiz).
Press (7) ® to reveal information.
Press again to conceal the information.
Using colour buttons to access pages
When the colour coded menu appears at the bottom of a page,
press the colour button (red, green, blue or yellow) C3) 7115114)
to access the corresponding page.
MENU Operation
Use buttons on Remote Commander to control Menu screen.
Green
Scroll up
MENU Red - Yellow
Menu Screen decrease/select increase /confirm(OK)
on/off
Blue
Scroll down
Adjusting the Picture
1 Press MENU @.
2 Press green @ or blue @ button to select the item you wish to change.
Symbol Ttem - Effect +
16) Picture Less More
6 Colour Less More
x Brightness Darker Brighter
@O Sharpness Softer Sharper
3 Press red © or yellow® button to change levels.
4 Press MENU @® to return to normal TV screen.
To reset to factory preset picture levels, press green O or
blue ® button to select »«< and press yellow (OK) ®
button.
29

30
en
eee)
Changing
of
the
Screen
Format
You have the possibility to change the aspect ratio for the TV display
for wide screen effects.
1 Press MENU @®.
2 Press repeatedly the blue ® button to select Zoom 1.
3 Press the red © or yellow ® button repeatedly to select one of the following
effects:
Zoom 1: imitation of 16:9 for 4:3 broadcasts.
Zoom 2: imitation of 16:9 for movies broadcast in cinemascopic format.
Zoom 2t: when using Zoom 2 mode, part of the top and bottom of the picture are
cut off. Using Zoom 2t you can move the picture upwards in order to
see the cut-off part of the screen (e.g. to read subtitles).
Zoom 3: for 16:9 broadcast. «
43 for normal 4:3 format.
4 Press MENU @® to return to normal TV screen.
Note: With a RGB source the format 4:3 is not available.
Using the Sleep Timer
The TV may be set to switch to the standby mode automatically after a length of time
chosen by you. You may set the time in 30 minutes steps up to 4 hours.
1 Press MENU ®.
2 Press green @ or blue ® button to select ¢')
3 Press red © or yellow ® button to set time delay.
0.00 (OFF) 0.30 1.00 1.30.... 4.00
4 Press MENU @® to return to normal TV screen.
When watching TV, press © @ to display time remaining.
Presetting Channels
Manually
Up to 60 programme positions are
available for presetting channels.
1
2
Press MENU ®.
Press green @ or blue ® button to select > and
press yellow (OK) ® button.
Select programme number using PROGR +/- ® & or
the number buttons @.
Press green @ or blue @ button to select tuning bar
and press red Oor yellow® button to start channel search.
When a channel is found the tuning bar stops moving and
you see the picture.
If you want to store, press green @ or blue ® button to
select O and press yellow (OK) ® button. If you don’t want,
press red @ or yellow @ button to continue search.
Repeat steps 3 to 5 for all other channels.
Press MENU @ to return to normal TV screen.
31

32
aa
reer
ES
Skipping
Programme
Positions
You can skip unused programme positions when
selecting channels with the PROGR +/- @¥ buttons.
You can still select them, however, using the number
buttons ©.
1° Press MENU ®.
2 Press green © or blue ® button to select > and
press yellow ® button.
3 Select programme number you want to skip
using PROGR +/- @ [ button or number
buttons ©.
4 Press green @ or blue ® button to select Coo and
press yellow (OK) ® button.
5 press green @ or blue ® button to select O and
press yellow (OK) ® button to store.
6 Repeat steps 3 to 5 for other unused programme
positions.
7 Press MENU @® to return to normal TV screen.
Fine-Tuning Channels
You can fine tune a stored channel.
1 Select the channel you wish to fine tune.
2 Press MENU ®.
3 Press green @ or blue ® button to select D> and
press yellow (OK) ® button.
4 Press green @ or blue ® button to select +F + and
use red @ or yellow @ button to adjust tuning.
5 Press green @ or blue ® button to select O and
press yellow (OK) ® button to store.
6 Press MENU @ to return to normal TV screen.
33

34
aN
a
I
a
PO
EET
Exchanging
Programme
Positions
After tuning you may wish to rearrange the
programme positions.
1° Press MENU ®.
2 Press green @ or blue ® button to select > and
8
press yellow (OK) ® button.
3 Press green @ or blue ® button to select
PROGR % and press yellow (OK) @ button.
4 Press red © or yellow ® button to select
the first programme position.
5 Press the blue @® button.
6 Press the red @ or yellow @ button to select
the second programme position.
7 Press blue ® button to select 1 and press
yellow (OK) ® button to exchange.
8 Repeat steps 4 to 7 for other programme
positions.
9 Press MENU @® to return to normal TV screen.
Optional Connections
i il}
Using
21-pin Connector
Your TV has one 21-pin connector Ml on the rear of the set.
You can connect optional audio or video equipment to this
connector, such as a VCR, video games or a video disc player.
1 Press &) ® Ei to view the video input signal.
2 Press 4) ®@ & or © 9 to return to normal
TV operation.
Using the Connectors on the front
Your TV has two connectors (phono jacks) (-@) video
EL -€) audio MJ) on the front of the set. You can connect
e.g. a video game to these connectors.
1 Press the yellow E¥ button -) on the TV once to
view the input signal in the Zoom 3 mode, twice for
4:3 mode and once again to return to normal TV
operation.
Note: Make sure not to switch on the equipments
connected to the 21-pin connector and the front
connectors at the same time.
Connecting
Headphones
Plug in the headphones to the 9 EJ socket on the front of the TV set.
The sound from the speaker is now muted.
35

36
Additional Information
Troubleshooting
Here are some simple solutions to the problems which affect the picture and sound.
Problem
Solution
No picture, screen is dark, no sound
Poor or no picture (screen is dark, sound is good)
Good picture, no sound
No colour on colour programmes
°
Plug the TV in.
Press © on the TV.
If © indicator [fi is on press () © or the
programme number @ on the remote
commander,
Check the aerial connection.
Check that the video source is on.
Turn the TV off for 3 or 4 seconds and
then turn it on again using © fa.
Press MENU ® and adjust brightness
picture and colour balance level.
Adjust the volume <1 + /-OD.
Disconnect any headphones.
oe is displayed on the screen, press %
Press MENU ® and adjust colour
balance.
Press MENU @ and reset to factory
settings.
Distorted picture when changing
programmes or selecting teletext
Turn off the equipment connected to the
21-pin connector If.
Remote commander does not function
Replace the batteries.
¢ If you continue to have these problems, have your TV serviced by qualified
personnel.
¢ NEVER open the casing yourself.

KV-16WT1
SECTION 2
DISASSEMBLY
2-1. REAR COVER REMOVAL
(BVTP4x16)
(2) Rear cover
2-2. SERVICE POSITION
A board
—
y
—14—

KV-16WT1
2-3. PICTURE TUBE REMOVAL
(3) C board
(4) Neck assy
(G) Deflection yoke
(6) Speaker YD
@) Four en ae al
on
J
i | a
screws (5) NY 4 ;
_ wR, (10) Picture tube
~N Pa
~~ Se
(4) Anode cap
@) Degaussing coil
Cushion
e REMOVAL OF ANODE-CAP
Note: Short circuit the anode of the picture tube and the anode cap to the metal chassis,
CRT shield or carbon paint on the CRT, after removing the anode.
* REMOVING PROCEDURES.
G) Turn up one side of the rubber cap in Q) Using a thumb pull up the rubber cap GB) When one side of the rubber cap is
the direction indicated by the arrow (a) firmly in the direction indicated by the separated from the anode button, the
arrow ® anode-cap can be removed by turning
up the rubber cap and pulling it up in
® HOW TO HANDLE AN ANODE-CAP the direction of the arrow ©
@® Don't damage the surface of anode-cap 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 into
the rubber.
@ Don’t turn the foot of rubber over hardly !
The shatter-hook terminal will stick out or damage the rubber.
—15—

KV-16WT1
SECTION 3
SET-UP ADJUSTMENTS
The following adjustments should be made when acomplete
realignment is required or a new picture tube is installed.
These adjustments should be performed with the rated
power supply voltage, unless otherwise noted.
The Contrast and Brightness controls should be set as follows
unless otherwise noted:
(@ CONTRAST control........ Normal
x¢ BRIGHTNESS control..... Normal
Perform the adjustments in the following order:
Beam Landing
Convergence
Focus
Screen
(G2),
Drive,
Sub
Colour
and
Sub
Brightness.
White
Balance
Auto
Adjustment
lade Ne
Note: Test Equipment Required.
1. Colour bar/Pattern Generator
2. Degausser
Preparation:
In order to reduce the influence of external magnetic
forces
on
the
picture
tube,
face
the
TV
set
in
an
easterly
or westerly direction.
Turn the power switch for the unit ON and erase the
magnetic force using a degausser.
3-1. BEAM LANDING
1.
10.
Input an all white raster signal from the pattern generator.
Set the picture to maximum and adjust BRIGHTNESS for clear
picture.
Set the Neck assy to the position Fig. 3-1.
Adjust Focus and Convergence.
Loosen the deflection yoke screw and move the Purity
Adjustment handle to the centre. (Fig. 3-2.)
Switch the pattern generator to Green.
Move the deflection yoke backward, and adjust with purity
control so that Green is at the center and Blue and Red are
evenly spaced at the side. (Fig. 3-3.)
Move
the
deflection
yoke
forward,
and
adjust
so
the
entire
screen
becomes
Green.
Switch the pattern generator to Red and Blue, and confirm
the condition.
When position of the deflection yoke has been determined,
tighten it with the deflection yoke mounting screw.
When the landing at the corners are not correct, adjust by
using disk magnets. (Fig. 3-4.)
G5 G6
Purity Magnet \ /
/ {
4 Pole Magnet / L OC
\ / H
/
/
\
/ i
BMC
(6
Pole)
Magnet
|
|
|
|
ELI
Neck Assy
Q
>—
Fig. 3-1
Fig. 3-2 Purity control
Fig. 3-3
Fig. 3-4
Purity control corrects
this area.
Disk magnets or
rotatable disk
magnets correct
these areas (a-d).
Deflection yoke
positioning corrects yet
these areas. ae
I
1
I
3
i
i}
I
t
I
Il
l
i
—A6—

3-2. CONVERGENCE
(1) Static Convergence
1.
ps
3.
4.
5.
Input a dot pattern from the pattern generator and adjust the
picture to normal.
Loosen the magnet stopper.
Adjust the red and blue dots using the pole magnet.
Converge the red and blue dots to the green dots using the
6 pole magnet.
Fasten the magnet stopper.
(2) Corner Convergence Adjustment
1.
If the sides of the screen are misconverged then adjust by
tilting the deflection yoke up, down or in the left or right
direction.
Once the correct position has been determined secure the
deflection yoke using the wedges.
KV-16WT1
47

KV-16WT1
(3) Screen-corner Convergence.
3-4.
SCREEN (G2), DRIVE,
SUB
COLOUR
and
SUB
BRIGHTNESS.
Screen (G2) setting |
Sy aN
Input
a
0
IRE
(Black
Level)
signal
from
the
pattern
generator.
Enter into the Service Mode "Test""Test" and 38.
Adjust G2 VR until the Down arrow is displayed.
Adjust G2 VR until the Down arrow just disappears.
Press
the
TV
Button
on
the
Remote
Commander
to
store
the data.
1.
N
3-3. FOCUS
Adjust
the
FOCUS
control
RV704
so
that
the
whole
screen
is
in
best focus.
Focus
G2
—18—
Doe OD
Input
a
Video
signal
containing
a
small
area
of
100%
white
on
a
black
background.
Connect
an
oscilloscope
to
Pin
@)
of
J901
(R
OUT)
on the C Board.
Set
the
Picture
to
maximum
using
"Test""Test"
and
01.
Enter
into
the
Service
mode
(Adjust
Menu).
Using
the
Blue
and
Green
buttons
select
"RED
HWB".
Using
the
Red
and
Yellow
buttons
on
the
Remote
Commander
adjust
until
the
oscilloscope
waveform
has
an
amplitude
of
95V.
95V
rm

Sub Colour Adjustment
1. Input a PAL colour bar pattern from the pattern generator.
Connect an oscilloscope to Pin GB) of J901 (B OUT)
on the C Board.
Enter into the Service Mode "Test""Test" and 22.
4. Using the Red and Yellow buttons on the Remote
Commander adjust until the oscilloscope waveform
becomes as follows :
al
ia ae SAME LEVEL
B. OUT
Note : If the TV is able to receive PAL and SECAM
transmissions, repeat the above procedure using a Secam
colour bar signal.
Sub Brightness Adjustment
1, Input a Philips pattern from the pattern generator.
2. Enter into the Service Mode "Test""Test" and 23.
3. Using the Red and Yellow buttons on the Remote
Commander adjust until the 0 IRE of the grey scale and the
cut off are only slightly visible on the screen.
3-5. WHITE BALANCE AUTO ADJUSTMENT
Enter into the Service Mode using the remote commander.
. Adjust the brightness and contrast levels to normal.
3. Using the service mode menu set the ROUT, G OUT and
B OUT data to "OFF".
4. Apply 165V+0.3V volts DC from an external power supply
to the R, G, and B cathodes.
Adjust the G2 VR until the flyback line just disappears.
6. Remove the DC power supply and from the menu set the R
OUT, G OUT and B OUT data to "ON".
No
on
—19—
KV-16WT1

KV-16WT1
SECTION 4
CIRCUIT ADJUSTMENTS
4-1. ELECTRICAL ADJUSTMENTS
Service adjustment to this model can be performed
with the supplied Remote Control Commander RM-836.
B
1.
2.
HOW TO ENTER INTO SERVICE MODE |
Turn on the main power of the set and enter into
stand-by mode.
Press the following sequence of buttons on the Remote
Contro] Commander.
a1
Eee [eco
(ON SCREEN
(DIGIT 5) (VOLUME +)
DISPLAY)
"TT-- " will appear in the top right corner of the screen
Other status information will also be displayed.
Press the MENU button on the Remote Commander to
obtain the menu on the screen.
Adjust.
p 16:9 ON
System
Text
AGC
PLL
V1 .00-01 SONY
Software version
Press the Blue (Next) or Green (previous) buttons to
select the adjustment item from the table.
Press the Yellow (+) or Red (-) buttons to change the data
as required.
Turn off the power to quit the service mode when
adjustments are completed.
Range of adjustments available from the on screen menu
system.
[ Adjustment Set Range
16:9 Off Select ON/OFF
BG-L, BG-DK
System Select UK, Eire, BG
Text _| Select EAST/WEST
AGC Adj. 00 - 63 :
j PLL Adj. 00 - 63
B&W Delay Adj. 00 - 63 a
Ver Size Adj. 00 - 63
Ver, Breath 00 00 - 63 ]
Par, Ampi 00 00 - 63
Par, Tilt
V, Linear
Corn, corr
V, Cen or EW
V, Position
H, Centre
Blue HWB Adj. 00 - 63
Green HWB Adj. 00 - 63
Red HWB Adj. 00 - 63
— 20 —