Sony Trinitron KV-20M20 User manual

SERVICE
KV-20M20
KV-20M20
KV-20S20
KV-20S20
KV-20S21
KV-20S30
KV-20S30
COMMANDER DEST. CHASSIS NO.
RM-Y116
RM-Y116
RM-Y116
RM-Y116
RM-Y116
RM-Y116
RM-Y116
CND SCC-J93B-A
US SCC-J84B-A
CND SCC-J93C-A
US SCC-J84F-A
US SCC-J84G-A
CND SCC-J93D-A
US SCC-J84C-A
KV-21R20
KV-21RS20
KV-21RD1
KV-21PM1
KV-21SD1
KV-21PS1
RM-Y116
RM-Y116
RM-Y116
RM-Y116
RM-Y116
RM-Y116
E SCC-J94B-A
E SCC-J94C-A
MEX SCC-J95C-A
MEX SCC-J95D-A
MEX SCC-J95E-A
MEX SCC-J95F-A

For all models
Television system
Channel coverage
Picture tube
Antenna
Speaker size
Power requirements
Dimensions (W/H/D)
Supplied accessories
SPECIFICATIONS
American TV standards
VHF: 2-13
UHF: 14-69
CATV: 1-125
Trinitron® tube
20-inch picture measured diagonally
21-inch picture measured diagonally
75Q. external antenna terminal for
VHF / UHF, F-Terminal
Full range 3 1/2 x 2 inches (90 x 50 mm)
120V AC, 60Hz
20 1/2 x 18 3/4x 18 1/2 inches
(522 x 477 x 471.7 mm)
Remote Commander RM-Y 116 (1)
with 2 AA size (R6) battery
Dipole antenna (1)
Antenna connector (1)
M@ KV-20S21/20S20/21RS20/21SD1/21PS1/20S30
Input
Output
Speaker Output
Power consumption
Weight
VIDEO (phono jacks): 1Vp-p, 75Q
unbalanced negative sync
Audio (phono jacks):
500 mVrms (100% modulation)
Impedance: 47Q
A/V input (Rear)
Front A/V input (K V-20S30 only)
Headphone jack
Audio Out (KV-20S30 only)
More than 800 mVrms at the maximum
volume setting (Variable)
More than 800 mVrms (Fix)
Impedance: 5KQ
2 speaker (2W x 2) 8Q
9OW when in use
TW in standby
47 lbs.(21.4 Kg)
@ KV-20M20/21R20/21RD1/21PM1
Input
Output
Speaker output
Power consumption
Weight
VIDEO (phono jacks): 1Vp-p, 75Q
unbalanced negative sync
Audio (phono jacks):
500 mVrms (100% modulation)
Impedance: 47Q
A/V input (Rear)
Earphone jack
1 speaker 2W(8Q)
90W when in use
6W in standby
46 Ibs 13 Oz (21.3 Kg)
Design and specifications are subject to change without notice.
SONY CORPORATION
Printed in U.S.A.

SAFETY CHECK-OUT
( US model only )
After correcting the original service problem, perform the fol-
lowing safety checks before releasing the set to the customer:
L
wm
~]
oo
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 cer-
tain that you have replaced all the insulators.
. Look for unauthorized replacement parts, particularly transis-
tors, that were installed during a previous repair. Point them
out to the customer and recommend their replacement.
. Look for parts which, through functioning, show obvious signs
of deterioration. Point them out to the customer and recom-
mend their replacement.
. Check the line cords 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.
. Check the B+ and HV to see they are at the values specified.
Make sure your instruments are accurate; be suspicious of your
HV meter if sets always have low HV.
. Check the antenna terminals, metal trim, “metallized” knobs,
screws, and all other exposed metal parts for AC leakage. Check
leakage as described below.
To Exposed Metal
Parts on Set
AC
0.15 uF voltmeter
|} (0.75V)
=== Earth Ground
Fig. A. 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 microamperes) .
Leakage current can be measured by any one of three methods.
1. Acommercial leakage tester, such as the Simpson 229 or RCA
WT-540A. Follow the manufacturers’ instructions to use these
instruments.
2. Abattery-operated AC milliampmeter. 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 0.75V, 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 digi-
tal multimeters that have a 2V AC range are suitable. (See 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 cold-
water 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)
’ Ohmmeter
: AC Outlet Box
(1) Cold-water Pipe
Fig B. Checking for earth ground.

TABLE OF CONTENTS
Section Title Page — Section Title Page
1. GENERAL 4. SAFETY RELATED ADJUSTMENT............. 17
Connecting the TV ......... 0.0... cee ee eee 5
Using the Remote Control ....................- 6 5. CIRCUIT ADJUSTMENTS
Setting Up Channels ..............0 0000 e ee aes 6 5-1. Electrical Adjustment by Remote Commander . .19
Watching the TV «1.0... eee eee 7 5-2. A Board Adjustments .................... 21
Using the Video Menu ............. 00 cee eee eee 8
Additional Features .............. 0... e eee eee 9 6. DIAGRAMS
Selecting Stereo or Bilingual Programs (MTS) 6-1. Block Diagrams .... 0.0.0.0... cece eee 23
Selection Caption Vision 6-2. Circuit Boards Location ...............0005 27
Customizing the Channel Number Buttons 6-3. Printed Wiring Boards and Schematic Diagrams . . .28
Listening with Headphones © A Boat snes speci aoe ceeded wes ee iw ated 28
@C Board yoo iee ss ee ea ee Set eae Be 36
2. DISASSEMBLY 6-4. Semiconductors 2... . 0... eee eee 36
2-1. Rear Cover Removal ..............0 2 eee ee 11
2-2. A Board Removal ................ 0002 eee 11 7. EXPLODED VIEWS
2-3. Service Position ......... 0.0.0.0... eee eee 1 T=1e Chassis: xi: 08 Basia ceed aah CAG k aa Bee 37
2-4, Picture Tube Removal ...............0000- 12
8. ELECTRICAL PARTS LIST
3. SET-UP ADJUSTMENTS
3-1.Beam Landing .......... 0c cece eee 13
3-2. Convergence ........ 2... eee eee eee eee 14
B23. FOCUS © 2.4.55. Rec cha ets eR chava asses ahaa aes 16
3-4. Screen (G2)... . kee ees 16
3-5. Method of Setting the Service Adjustment Mode . .16
3-6. White Balance Adjustment ................ 16
(CAUTION)
SHORT
CIRCUIT
THE
ANODE
OF
THE
PICTURE
TUBE
AND
THE
ANODE
CAP
TO
THE
METAL
CHASSIS,
CRT
SHIELD,
OR
CARBON
PAINTED
ON
THE
CAT,
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 & ON THE SCHEMATIC DIAGRAMS,
EXPLODED VIEWS, AND IN THE PARTS LIST ARE CRITICAL TO SAFE OPERATION. RE-
PLACE THESE COMPONENTS WITH SONY PARTS WHOSE PART NUMBERS APPEAR AS
SHOWN IN THIS MANUAL OR IN SUPPLEMENTS PUBLISHED BY SONY. CIRCUIT AD-
JUSTMENTS THAT ARE CRITICAL TO SAFE OPERATION ARE IDENTIFIED IN THIS
MANUAL. FOLLOW THESE PROCEDURES WHENEVER CRITICAL COMPONENTS ARE
REPLACED OR IMPROPER OPERATION IS SUSPECTED.

SECTION 1
GENERAL Operating Instructlons remain as in the manual.
Step 1: Connecting the TV
You can use an indoor antenna, outdoor antenna, or cable
system with your TV. Outdoor antennas or cable TV
systems usually provide the best picture quality.
Connecting an Indoor, Outdoor
or Cable Antenna
Connect your antenna or cable to the TV’s VHF/UHF
antenna terminal.
A, VHF only 76-ohm coaxial cable
or
or
Cable
If you cannot connect A antenna or cable directly to the
TV antenna terminal, follow one of the diagrams below.
a VHF only 300-ohm twin lead cable
or
or
VHF/UHF
Antenna connector
(see specifications for models)
¢ 75-ohm coaxial cable
VHF
and
UHF
300-ohm twin lead cable
Connecting to a Cable TV System
If your cable system requires use of a cable box, make the
connection as shown below.
ee ee
a
Cable box
Connectin : aVCR
See your VCR instructions to set up the VCR. After
connecting the VCR to the TV, you will be able to do the
following:
* Watch video tapes
* Record one TV program while viewing another
Check the model number of your TV and select the
appropriate connection diagram.
Notes
If your cable system si ay use of a Cable Box, install it
between the VCR and the TV.
For a monaural VCR, connect the audio output of the VCR to
AUDIO L (MONO) on the TV.
Connect your S-Video cable (KV-20V60 only) to the S-Video
input on the TV. S-Video will override your standard video
input, providing the most stable picture.
Cable QD cable
FO) VHF/UHF IN
FO) vHFWUHF ouT vies
AUDIO-A_AUDIO-L
For models
with mono
Inputs
Video Cable (not supplied)
AUDIO-R AUDIO-L VIDEO AUDIO-R AUDIO-L VIDEO
(red)
(white)
{yellow)
(red)
(white)
(yellow)
For
models
Video
Cable
(not
supplied)
with
stereo
inputs
$-Video
Cable
(not
supplied)
KV-20V60
only
Connecting a Camcorder
KV-13M30, 13M31, 20830, 21RS30C only
Use this connection to view a video tape from a camcorder.
To audio
outputs
AUDIO R (red)
AUDIO L (white)
To video
output
Cable (not supplied)
Notes
* Fora monaural camcorder, connect the audio output of the
camcorder to AUDIO L (MONO) on the TV.
* If you are connecting your camcorder to a monaural TV
(KV-13M30, 13M31 only), plug the audio connector into the AUDIO
input on the TV.
¢ You can also connect a camcorder to inputs on the rear of the TV.
Connecting an Audio System _
KV-20830, 21RS30C only
To listen to TV audio through a separate stereo system, connect
the TV as shown below. See page 11 to switch to the external
speakers.
VIDEO 1 IN
©00
R-AUDIO-L(MONO) VIDEO
AUDIO OUT
Stereo
AUDIOINL System
(white)
«O))
AUDIO (FIX/VAR AUDIO (FIX/VAR
( Ae ay) { )
OUT L (white)
Audio Cable
{not supplied)
€O)
AUDIO IN R
(red)
The operating Instructions mentloned here are partlal abstracts from
the Operating Instruction Manual. The page numbers of the

; Step 2: Using the Remote Control
Step 3: Setting up Your Channels
Instructions in this manual are based on using the remote
control. You can also use the controls on the TV.
The menu illustrations are from KV-20M20. When features
found on other models are discussed, the manual lists the
models covered by that specific set of menus.
Note
* The menu disappears 90 seconds after you press a button, or
immediately after you press MENU.
Inserting Batteries
HUA
Insert two size AA (R6) batteries (supplied) by matching the
+ and — on the batteries to the + and - inside the battery
compartment. With normal use, the batteries should last for
approximately six months.
Notes
Remove the batteries to avoid possible damage from battery leakage
if you will not be using the remote control for an extended period of
time.
Handle the remote control with care. Avoid dropping it, getting it
wet, or placing it in direct sunlight, near a heater, or where the
humidity is high.
Changing the Menu
Language
Mh
ELLER SI EU
Except Canadian models
If you want to view the menus in Spanish, you can change the
menu language.
4 Press MENU. The
Main menu appears.
MENU
&@ Press A+ or Y-to
move the cursor (>) (x)"
to ENGLISH and press {44
RETURN. Wh
ENGLISH will
turn red.
4 Press A+ or V-
to select (x)" VIGEO
ESPANOL and = eeyToxr: ch
press RETURN. @ ty » ESPANOL
=e me
4 Press MENU to return to the TV program.
Note
* Some parts of the Spanish menus will appear in English.
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Setting Cable TV On or
If you have connected the TV to a cable TV system, set CABLE to
ON. If not, set CABLE to OFF.
4 Press MENU.
2 Move the cursor to SET UP and press RETURN.
3 Move the cursor to CABLE and
press RETURN.
SET UP
»CABLE: ON
AUTO PROGRAM
CHANNEL ERASE/ADD
CHANNEL BLOCK
CHANNEL GUIDE
MENU
Use Yi RETRY Exit Few)
SET UP
4& Press A+ or V- to select ON or OFF.
»CABLE: OFF
AUTO PROGRAM
3 Press RETURN.
CHANNEL ERASE/ADD
& Press MENU to return to the TV CHOAREL BLOCK
program. SMENU
Use ¥ } RET] Exit fe)
Note
* If the screen is black, the TV is set to a video input and you cannot select
CABLE. Press TV/VIDEO until a channel number appears, then follow
steps 1-6.
Auto Programming Your Channels
TV channels can be preset easily. First, you can store all the
receivable channels automatically. Later, you can erase unwanted
channels or add additional channels.
Notes
* If the TV is set to VIDEO, you cannot run AUTO PROGRAM. Press
TV/VIDEO on the remote control until a channel number appears.
* Itis usually best to preset channels during the day when the greater
number of channels are broadcasting.
4+ Press MENU. The Main
menu appears. MENU
> VIDEO
SET UP
(Eq\/TEXT: CCI
ENGLISH
Use Yi RETRY) Exit [ew]
2 Press A+ or V-on the
SET UP
remote control to move (R) PCABLE: ON
AUTO PROGRAM
the cursor (P) to SET UP. (x) HAAN ERASE/ADD
Press RETURN. Za CHANNEL GUIDE
The SET UP menu appears. anew
Use ¥ i (ETA) Exit feu]
& Press A+ or V- to move the cursor to AUTO PROGRAM and
press RETURN.
AUTO PROGRAM appears on the screen and the TV starts
scanning and presetting channels.
When all of the receivable channels are stored, AUTO
PROGRAM disappears.
Note
* AUTO PROGRAM will tune in all of the channels in your area, including
some with weak or scrambled signals. They will appear fuzzy on the
screen. You can erase them using CHANNEL ERASE/ADD.

Erasing or Adding Channels
After you run AUTO PROGRAM, you can erase unnecessary
channels or add new ones.
4+ Press MENU.
2 Press A+ or V- to select SET UP and press RETURN.
% Press A+ or V- to select
SET UP
CHANNEL ERASE/ADD CABLE: ON
and press RETURN. > CHANNEL EReSE/200
CHANNEL BLOCK
CHANNEL GUIDE
MENU
(x\P)
—
oy
4 To erase or add an unwanted
channel:
(1) Press CH +/- or 0-9 to select the
channel you want to erase or add.
(2) Press A+ or V- to select ERASE
or ADD.
(3) Press RETURN.
If you are erasing a channel, the “~” symbol appears next to
the channel number. If you are adding a channel, the “+”
symbol appears next to the channel number.
§ To erase or add other channels, repeat step 4.
& Press MENU to return to the TV program.
Note
* Tf you erase or add a VHF or UHF channel, the cable TV channel with the
same number is also erased or added.
Channel to
be erased
CHANNEL ERASE/ADD
SE
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Watching the TV
Press POWER to turn the TV on.
Note
« If VIDEO appears on the screen, press TV/ VIDEO so that a channel number
appears.
Selecting a Channel Directl
Press 0-9 to select a channel. @) @ ®
The channel will change after
2 seconds, or you can press ENTER @ ® ©
for immediate selection. @ oy)
Os
Scanning Through Channels
sete tL NS
Press CH +/- until the channel you CH
want appears. +
Juniping Quickly bet
Press JUMP.
The TV switches from the current
channel to the previous channel that
you watched.
Pressing JUMP again switches back to the first channel.
Note
* You can only jump to channels you have selected with the 0-9 keys, or back to
the last channel you scanned.
VOL
.
y VOLUME
UIADELL ET fesveeseccvsnnerierion
Press VOL +/- to adjust the volume.
Muting the Sound
MUTING
Press MUTING.
MUTING appears on the screen.
To restore the sound, press
MUTING again, or press VOL +.

Displaying On-Screen Information :
Use the DISPLAY key to check the TV's Display settings.
1 Press DISPLAY. DISPLAY
The channel number will be
displayed. The TV will also display
the MTS mode if SAP, MAIN, or
MONO are selected (except
KV-13M20, 13M30, 20M20). The
MTS mode display disappears after
4 seconds.
2 Press DISPLAY again.
XDS ON will appear on the screen. If XDS
(Extended Data Service) is broadcasting,
information will then appear on the screen
(except KV-13M20, 14PM1, 14R20, 14R20C,
14RD1)
3 Press DISPLAY again.
CC1 ON (if selected) will appear on the screen for a few seconds.
Captions will then appear at the top or bottom of the screen.
4 To turn off Caption Vision or XDS display, press DISPLAY again
until DISPLAY OFF appears.
Note
* See page 13 for more information about Caption Vision.
Watching Video Tapes
ELLE OLE EEL LET EDIE LEE LG
TV/VIDEO
+ Press TV/VIDEO until the
correct video input appears.
2 Press PLAY on your VCR to view the video tape.
Setting the Sleep Timer
Sleep Timer allows the TV to stay on fora length of time and then shut
off automatically.
+ Press SLEEP until the time you
want appears. SLEEP
Each time you press SLEEP, the
display moves between 30, 60, 90,
and OFF.
Ina few seconds, the SLEEP
message disappears.
TV WILL BE OFF SOON appears one minute before the TV shuts off.
2 To cancel the Sleep Timer, press SLEEP again until SLEEP OFF
appears, or turn off the TV.
SLEEP 30
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Using the VIDEO Menu
Adjusting the Video Settings
You can adjust the picture, hue, color, brightness, and sharpness of any
TV image.
+ Press MENU,
2 Move the cursor (>) to VIDEO and press
RETURN.
HUE
COLOR
BRIGHTNESS illifivnin
SHARPNESS Ills
3 Press A+ or Y- to select the VIDED
feature that you want to adjust (Z) R) PICTURE INI
and press RETURN. = eee ae
See the Adjustable Items chart for a uy Ce ce
list of the adjustments you can make.
4 Press A+ or V- to adjust the
setting of the selected feature
and press RETURN,
The new setting appears in the
VIDEO menu.
BRIGHTNESS
TUTTE Eau
at
5 To adjust other video settings, repeat steps 3 and 4.
6 Press MENU to return to the TV program.
ADJUSTABLE ITEMS
RRS HERR RH HER RAO ER
item Press A+ (R) to Press Y~ (L) to
PICTURE Increase the contrast Decrease the contrast
HUE Increase the green tones — Decrease the green tones
COLOR Increase color intensity Decrease color intensity
BRIGHTNESS —_ Brighten the picture Darken the picture
SHARPNESS — Sharpen the picture Soften the picture
Restoring the Factory Video Settings
1 To restore the factory video settings, press RESET while the
VIDEO menu is displayed.
All the settings except PICTURE are restored to factory settings.
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Additional Features
Selecting Stereo or Bilingual Programs (MTS) |
21SD1 only. Menus shown are for KV-20520.
The Multichannel TV Sound (MTS) feature allows you to enjoy stereo
sound (MAIN), Second Audio Programs (SAP), or monaural sound
(MONO) when available.
1 Press MENU.
2 Move the cursor to AUDIO and press RETURN.
3 Move the cursor to MTS and press RETURN.
4 Press A+ or Y- to select MAIN, AUDIO
SAP, or MONO. (f\" PHTS: MAIN
5 Press MENU to return to —
the TV program. hy
Use Yi ETB] Exit [ea]
Choose To
MAIN Listen to stereo sound.
SAP Listen to bilingual and other programs.
MONO Reduce noise during poor stereo broadcasts.
Note
* The sound of non-SAP programs will be muted when SAP is selected.
If there is no SAP audio, you may hear unrelated audio in English.
KV-20530, 20V60, 21RS30C only.
You il switch off the TV speakers when you want to listen to the TV
sound through a separate stereo system.
4 Press MENU.
i Move the cursor to AUDIO and press RETURN.
3 Move the cursor to SPEAKER and press
RETURN.
4 Press A+ or V- to select ON or OFF.
5 Press MENU to return to the TV program.
AUDIO
MTS: MAIN
»SPEAKER: ON
MENU
Use ¥ { RETR) Exit 70)
an en ME PAPO
Choose To
ON Listen to the sound from the TV.
OFF Turn off the TV speaker and listen to the TV's sound
through external audio system speakers.
Changing Audio Out Speaker Volume
KV-20530, 20V60, 21RS30C only.
You can control the volume of the TV program when you play the TV
sound through a separate stereo system.
+ Press MENU.
2 Move the cursor to AUDIO and press RETURN.
3 Move the cursor to SPEAKER and press RETURN.
4 Press A+ or V- to set SPEAKER to OFF. Press RETURN.
11
KV-20520, 20521, 20530, 20V60, 21PS1, 21RS20, 21RS20C, 21RS30C,
5 Move the cursor to FIXED or
VARIABLE and press RETURN.
Your selection will turn yellow.
& Press MENU to return to the TV
AUDIO
PVARIABLE
program.
a = ccinanaaRteensonasNaRnERNSERnoEeRttoSoR—NOnE
FIXED Adjust the volume with your stereo.
VARIABLE Adjust the volume through the TV.
Note
* Set the volume on your stereo low when switching from VAR to FIXED to
avoid overloading your speakers.
Turning on Surround Sound
KV-20V60 only
Use this feature to listen to TV audio in Surround Sound mode.
+ Press MENU.
2 Move the cursor (>) to AUDIO and press RETURN.
3 Move the cursor to SURROUND and
AUPREBLE ili
press
RETURN.
BESS
HM
fucrccrne
4
Press
A+
or
V-
to
set
Surround
arse
WEIN
PSURROUND: OFF
ON
or
OFF.
alee
ON
5
Press
MENU
to
return
to
the
TV
Use
¥f
GETHR]
Exit
Fea]
program.
Adjusting Treble, Bass, and Balance
KV-20V60 only
+ Press MENU. AUDIO
2 Move the cursor (») to AUDIO and "Bees Ml
press RETURN. we MAIN
3 Move the cursor to TREBLE, BASS, or SrenkeR on
BALANCE
and
press
RETURN.
oe
A
Ev
6
Choose eine te,
TREBLE Increase or decrease high pitch sounds,
BASS Increase or decrease low pitch sounds.
BALANCE Change the balance between speakers.
4 Press A+ or V- to increase or decrease the setting.
& Press RETURN to make other audio adjustments.
& Press MENU to return to the TV program.
Restoring the Factory Audio Settings
+ To restore the factory audio settings, press RESET while the
AUDIO menu is displayed.
Blocking Out a Channel (CHANNEL BLOCK)
This feature allows you to prevent children from watching selected
channels.
7 Press MENU,
2 Move the cursor to SET UP and press RETURN.
2 Move the cursor to CHANNEL BLOCK and press RETURN.
12
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je
aa
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4 Move the cursor to 1 or 2 and press CHANNEL BLOCK
RETURN. Pl. CH
§ Press A+ or Y- to select the channel
that you want to block. Press
RETURN.
& Repeat steps 4 and 5 to enter the
second channel that you want to
block.
7 Press MENU to return to the TV program.
If you switch to the blocked channel, BLOCKED appears. The
screen is black and the sound is muted.
CHANNEL BLOCK
>1. CH 10
2. CH.
MENU
Select the channel.
Use Y { RETRY Exit feu]
To cancel a CHANNEL BLOCK setting
1 Follow steps 1-4 above.
Z Press RESET.
Selectin Ca
Vision O tio
Caption Vision options include CC1, 2, 3, and 4, or TEXT1, 2, 3,
and 4, CC1, 2, 3, and 4 show a caption or printed version of the
dialog or sound effects of a program. CC1 will be the setting for
most programs. TEXT1, 2, 3, and 4 show text information on half
of the screen. This text is not usually related to the program.
4 Press MENU.
2 Press A+ or V- to
select [CC/TEXT: CC1] and (x) VIDEO
press RETURN. Fry beeen
\y ENGLISH
3 Press A+ or V- to select the caption type (CC1, 2, 3, 4, or
TEXT1, 2, 3, or 4) and press RETURN.
4 Press MENU to return to the TV program.
% To view Caption Vision, press DISPLAY several times until
Use Yi ET Exit Feu)
CC1, 2, 3, 4, or TEXT1, 2, 3, 4 ON is displayed if broadcasting.
The caption will appear in a few seconds.
6 To turn off Caption Vision, press DISPLAY until DISPLAY OFF
appears.
Notes
* Captions disappear for a few seconds when you press the MUTING
button.
* Captions may appear with a white box or other errors if you have poor
reception of the channel.
Customizing the Channel Number Buttons
(CHANNEL GUIDE)
SEER RN
You can assign up to 12 of your favorite channels to Channel Guide
locations and switch to them with the Channel Guide.
4 Press MENU.
2 Press A+ or V- to select SET UP and press RETURN.
4 Press A+ or V- to select CHANNEL GUIDE and press RETURN.
13
4 Press RETURN again to move the
cursor to the number pad.
5 Press A+ or V-to select a
number on the Channel Guide
(the button number will turn
red) and press RETURN.
The turns red.
Buttons 0-9, DISPLAY (D) and
ENTER (E) are available for
Channel Guide access.
& Press A+ or V- to select the
channel that you want to assign
to that button, and press
RETURN.
The TV will switch to that channel.
7 Repeat steps 5-7 to set other channels.
8 Press MENU to return to the current TV program.
To remove a CHANNEL GUIDE setting
4 Repeat steps 1-6 to select the channel that you want to
remove.
2 Press RESET.
Using the Channel Guide.
4 Press CH GUIDE.
The Channel Guide shows button
numbers and the channels
assigned to them.
2 Press 0-9, DISPLAY or ENTER on
the remote control to switch to
the channel you want to view.
3 To cancel the CHANNEL GUIDE display without selecting
a channel, press CH GUIDE again.
CHANNEL GUIDE
@s @10 O13
@14 ©--- @---
@--- @--- @---
©--- O--- ©---
Listening with Headphones an Earphone
Plug the headphones or earphone into the jack on the front of
the TV. Using headphones will turn off the sound to the TV
speakers. KV-13M20 is shown below.
eg
* To prevent hearing damage due to sudden or prolonged excessive
volume, do not set the volume too high while listening.
* Ifyour TV is monaural, the monaural sound will be heard from both
headphones.
14
-~10-
sauoydpesy. ym Buiusist] e APIND joUUeYD « UOISIA UOIde>

SECTION 2
DISASSEMBLY
2-1. REAR COVER REMOVAL
(2) Rear Cover
(4) Four Screws
| (BVTP 4x16)
2-2.
A
BOARD
REMOVAL
2-3.
SERVICE
POSITION
A Board
-11-—

Before
removing
anode
cap:
2-4,
PICTURE
TUBE
REMOVAL
H.V. remains in the CRT even after the power is :
disconnected.
©
Coil
band
To avoid electrical shock before attempting to \ @ A board
remove the anode cap, discharge CRT: Short |
between anode and CRT coating earth ground P : a :
Step. Tension spring ie y
@ C board
@ Deflection yoke
© Four tapping screws (5)
@ Anode cap
Coating earth
ground strap
Cushion
* 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
painted on the CRT after removing the anode.
* REMOVING PROCEDURES
OF
Anode button
@
Turn
up
one
side
of
the
rubber
cap
in
the
@
Using
a
thumb
pull
up
the
rubber
cap
@
pallet
ae
of
hy
pie
jad
is
oe
Faction
inci
firmly
in
the
direction
indicated
by
the
rated
from
the
anode
button,
the
anode-
direction
indicated
by
the
arrow
@.
arow:G).
cap
can
be
removed
by
turning
up
the
rubber
cap
and
pulling
up
it
in
the
di-
* HOWTO HANDLE AN ANODE-CAP rection of the arrow ©.
(@ Don’t damage the surface of anode-caps with
sharp shaped material!
@ Don’t press the rubber so as not to damage the
inside of anode-caps. A material fitting called a
shatter-hook terminal is built into the rubber cap.
@ Don’t turn over the foot of rubbercap. The shat-
ter-hook terminal will stick out or damage the
rubber cap.
-~12-

SECTION 3
SET-UP ADJUSTMENTS
The following adjustments should be made when a
complete realignment is required or a new picture
tube is installed.
These adjustments should be performed with rated
power supply voltage unless otherwise noted.
The controls and switch should be set as follows
unless otherwise noted:
PICTURE control ........:.c000 normal
Perform the adjustments in order as follows:
Feb
Beam Landing
Convergence
Focus
Screen (G2) and White Balance
Note: Test Equipment Required
1. Color bar Pattern Generator
2. Degausser
3. DC Power Supply
4. Digital multimeter
Preparation:
Feed in the white pattern signal.
Before starting, degauss the entire screen.
3-1. BEAM LANDING
1.
2.
Input a raster signal with the pattern generator.
Loosen the deflection yoke mounting screw, and set the
purity control to the center as shown in Fig.2.
Turn the raster signal of the pattern generator to
green.
Move the deflection yoke backward, and adjust with the
purity control so that green is in the center and red and
blue are at the sides evenly. (Fig.3)
Move the deflection yoke forward, and adjust so that the
entire screen becomes green. (Fig.1)
Switch over the raster signal to red and blue and confirm
the condition.
When the position of the deflection yoke is determined,
tighten it with the deflection yoke mounting screw.
When landing at the corner is not right, adjust by using
the disk magnets. (Fig.4)
-13-
Disk magnets or
rotatable disk
magnets correct
these areas (a-d).
Deflection yoke
positioning corrects these
Fig. 4

3-2, CONVERGENCE 2. When the V.STAT magnet is moved in the direction of
Preparation:
arrow
@
and
®),
red,
green,
and
blue
dots
move
as
shown
below.
*
Before
starting,
perform
FOCUS,
V.LIN and
V.
SIZE
adjustments.
1)
@
®
®
¢ Set BRIGHTNESS control to minimum,
® -\_® B B
¢ Feed in dot pattern. \
(1) Vertical Static Convergence R | R |
V. STAT magnet
If the blue dot does not converge with red and green dots,
Fig. 5 perform the following steps:
Move BMC magnet (a) to correct insufficient H.static
1. Adjust V. STAT magnet to converge red, green and blue
convergence.
dots in the center of the screen. (Vertical movement)
Rotate BMC magnet (b) to correct insufficient V.static
e Tilt the VSTAT magnet and adjust static convergence convergence.
to open or close the V.STAT magnet.
In either case, repeat Beam Landing Adjustment.
BMC magnet
Fig. 6
-14-

(3) Screen-corner Convergence
Fig. 7
(2) Dynamic Convergence Adjustment
Preparation:
¢
Before
starting
to
perform
Horizontal
and
Vertical
static
ae
a
Permalloy
—
corresponding
convergence Adjustment. to the misconverged areas :
1. Slightly loosen deflection yoke screw.
2. Remove deflection yoke spacers.
3. Move the deflection yoke for best convergence as shown
below.
4. Tighten the deflection yoke screw.
5. Install the deflection yoke spacers.
Permalloy assembly
Fig. 8
~15-

3-3. FOCUS
Adjust FOCUS control for best picture.
SCREEN (G2)
3-4. SCREEN (G2)
1. Input a dots pattern.
2. Set the PIC, BRT controls at minimum and COLOR
contro] at normal.
3. Adjust S BRT, G CUT, B CUT in service mode so that
voltages on the red, green, and blue cathodes are 170V
de with an oscilloscope as shown in Fig. 11.
4. Observe the screen and adjust SCREEN (G2)VR to
obtain the faintly visible background of dot signal.
|
170 V de pedestal
|
GND
Fig. 11
3-5. METHOD OF SETTINGTHE SERVICE
ADJUSTMENT MODE
SERVICE MODE PROCEDURE
1. Standby mode. (Power off)
2. [DISPLAY] +3] >[VOUG)-[POWER Jon tne
Remote Commander. (Press each button within a
second.)
SERVICE ADJUSTMENT MODE IN
Disp. tem
(Item) data
3. The CRT displays the item being adjusted.
4. Press [I] or[4] on the Remote Commander to select the
item.
5. Press [3] or [6] on the Remote Commander to change the
data.
6. Press |MUTING} then LENTER |to write into memory.
SERVICE ADJUSTMENT MODE MEMORY
SERVICE WRITE
Green
L
Red
7. Turn set off and on to exit.
3-6. WHITE BALANCEADJUSTMENTS
1. Input an entire white signal.
2. Set to service adjustment mode.
3. Set the PICTURE and BRIGHT to minimum.
4. Adjust with SBRT if necessary.
5. Select G CUT and B CUT with[T] and [4].
6. Adjust with [3] and [6] for the best white balance.
7. Set the PICTURE and BRIGHT to maximum.
8. Select GDRV and BDRV with [1] and [4].
9. Adjust with[3] and[6] for the best white balance.
10. Write into the memory by pressing] MUTING] then
ENTER |.
~16—-

SECTION 4
SAFETY RELATED ADJUSTMENTS
A BOARD
Meee CONE IB TON ME too IBY HOD own B+ VOLTAGE CONFIRMATION AND ADJUSTMENT
The following adjustments should always be performed when : '
replacing
the
following
components
(marked
with
[4
on
the
The
following
adjustments
should
always
be
performed
schematic diagram). when replacing the following components.
(marked with [d on the schematic diagram).
1C301, 1C502, IC601, D505, D506, D507, D510, DY, C503,
C511, C513, C528, R511, R519, R520, R523, R525, R527, R559, 1C001, C601, RO3O, R617, R618, R629, R630, R651,R652,
R560, R617, R618, T504 (FBT) R654, R655, R656
1. Preparation before confirmation 1) Supply 130 + 2° V AC to the set with a variable auto trans-
former.
1) Turn the POWER switch ON. Input an entirely white 2) Input a dot signal.
signal and set the PICTURE and BRIGHT controls to 3) Set the PICTURE control and the BRIGHT control to
maximum. minimum condition.
2) Confirm that the voltage at TP85 is more than 90VDC 4) Set to service adjustment mode.
when the set is operating normally with 120.0+2.0 VAC 5) Select PADJ with [i] and [4] .
supply. 6) Adjust with [6] to the 0 level.
7) Confirm the voltage of ABOARD TP-91 is less than 123.0V
2. Hold-down operation confirmation DC.
8) If step 7) is not satisfied, replace the components, repeat the
1) Connect the current meter between Pin 11 of the FBT above steps.
Se and the PCB land where Pin 11 would normally 9) Supply 120.0 + 2.0 VAC to the set with a variable auto trans-
: former.
2) Input a white signal and adjust the ABL current to be ; '
1440 + 1O0WA using the PICTURE and the BRIGHT _—_—!0) Adjust with [3] and [| for the 116.7 + 0.5V DC.
controls. 11) Write into the memory by pressing then
3) Confirm the voltage of A board TP-91 is 113.2 40.5
VDC
4) Connect the Digital Voltmeter and DC power supply
via 188119 to TP-85.
5) Increase the DC power voltage gradually until the
picture blanks out.
6) Read the digital voltmeter indication.
7) Turn DC power source off immediately.
STANDARD
Less than or equal to 127.0 VDC
8) Input a dot signal and adjust the ABL current to be
95+100/-95uA using the PICTURE and the BRIGHT
controls.
9) Confirm the voltage of A board TP-91 is 116.7 + 0.5
VDC
10) Repeat steps from (4) to (7).
STANDARD
Less than or equal to 127.0 VDC
3. Hold-down readjustment
If the current setting indicated in step 2-2 cannot be met,
readjustment should be performed by altering the resistance
value of R525 (a component marked with }4).
T504
FBT
ammeter
3.0 mA de
ake’
procs aeccnwouoce QWeeewenansooseen
Sara

DIGITAL MULTIMETER
oF
_
=
MMO
DIGITAL
MULTIMETER
AMMETER
3mA
de
range
POWER
SUPPLY
-18-

SECTION 5
CIRCUIT ADJUSTMENTS
5-1. ELECTRICAL ADJUSTMENT BY REMOTE COMMANDER
Use Remote Commander (RM-Y116) to perform circuit 2. MEMORY WRITE CONFIRMATION METHOD
adjustments on this model. 1. After adjustment, pull out the plug from the AC outlet, then
replace the plug in the AC outlet again.
NOTE : Test Equipment Required. 2. Turn the power switch ON and set to service mode.
1. Pattern Generator 3. Call the adjusted items again to confirm they were
2. Frequency Counter adjusted.
3. Digital Multimeter
4. Audio OSC
3. ADJUST BUTTONS AND INDICATOR
1. METHOD OF SETTING THE SERVICE
ADJUSTMENT MODE POWER
SERVICE MODE PROCEDURE
1. Standby mode. (Power off)
2. [DISPLAY] -» [5] — > on the Remote
Commander. (Press each button within a second.)
SERVICE ADJUSTMENT MODE IN
Disp. Item
(Item) data
fa
SERVICE AFC 0 VOL (+
3. The CRT displays the item being adjusted.
4. Press {lj or (4) on the Remote Commander to select the
item.
5. Press [3] or [6] on the Remote Commander to change the
data.
6. Press then to write into memory.
SERVICE ADJUSTMENT MODE MEMORY
Green
SERVICE WRITE
J
Red
7. Press [8} then on the Remote Commander to
initialize.
Carry out step 7) when adjusting IDs 0
to 4 and when replacing and adjusting
1C003. RM-Y116
SERVICE RESET
Factory original setting
8. Turn set off and on to exit.
-19-

4. AN ITEM OF ADJUSTMENTS
26 |ABLM
27 |CROM
28 |OSDL
29 |Y-DC
30 |GAMM
31. |VEXT
32 |VZOM
33 |CDMD
34 |RGBL
35 |YDLY
36 |SBAL
37 |SBAS
38 |STRE
39 |PHOR
40 |PE-W
41 |PCOR
42 |PTRP
43 |HCMP
44 |DISP
45 |PADJ
46 |1D-0
47 }ID-1
48 |ID-2
49 }1D-3
50 |ID-4
Color System
AFC Loop Gain
V. Position
V. Size
V. Linearity
S. Correction
H. Position
Green-Drive
Blue-Drive
Green-Cutoff
Blue Cut Off
Chroma TOT-Filter
Noise Reduction
Sub-Contrast
Sub-Hue
Sub-Color
Sub-Brightness
Sub-Sharpness
Red-Off
Green-Off
Blue-Off
Pre-Over Shoot
Axis SW
Dynamic-Color
Reference-Position
ABL Mode
Chroma Trap SW
OSD Level
DC Transmission
Gamma
V Sync Extend
HV Comp
V Countdown
RGB Limit
Y Delay
Left-Volume
Sub-Bass
Sub-Treble
Horizontal Size
E-W Correction
E-W Corner
Trap Correction
H Compensation
Display Position
B+ Adjustment
ID-0
ID-1
ID-2
ID-3
1D-4
*: Set-up value
Note: No.1 through 50 show adjustment order.
SERVICE IDO 64
0,1
0
0
0
0
0
0
0
0,
0
0
0
0
0
0
0
wT ae
z
r
z
2
r
O-nNIeNNoe An wowaaniau
2
0~3
0~15
0~15
O~15
0~63
0~63
0~15
0~63
0~15
0~63
0~63
0~256
0~256
0~256
0~256
0~256
nN
DAMON WBANNNOCOTVOF HONDA NNO FA
—
34
by Model
by Model
by Model
by Model
by Model
Note: IC001 on circuit board A inputs a V. sync signal to pin
© and is always in operation. If a V. sync signal is
input to pin © there will be a waiting period of 2-4
seconds, and the power is shut off.
When entering the service mode, the above function is
cancelled and operation is possible.
Adjust the function values as shown below when IC003 on A
board is replaced.
KV-20M20 (CND) KV-20M20 (US)
KV-20S30 (US) KV-21R20(E)/21RD1/21PM1(MEX)
-20-