Sharp 13K-M100/150 User manual

1
13K-M100/150
CK13M10/15
SERVICE MANUAL
Page
æELECTRICAL SPECIFICATIONS ........................................................................................... 1
æIMPORTANT SERVICE SAFETY PRECAUTION ................................................................... 2
æLOCATION OF USER'S CONTROL ....................................................................................... 6
æINSTALLATION AND SERVICE INSTRUCTIONS.................................................................. 7
æCHASSIS LAYOUT ............................................................................................................... 13
æBLOCK DIAGRAM ................................................................................................................ 14
æDESCRIPTION OF SCHEMATIC DIAGRAMS ..................................................................... 15
æSCHEMATIC DIAGRAMS ..................................................................................................... 16
æPRINTED WIRING BOARD ASSEMBLIES .......................................................................... 19
æREPLACEMENT PARTS LIST .............................................................................................. 23
æPACKING OF THE SET ........................................................................................................ 30
CONTENTS
Intheinterestsofuser-safety(Requiredbysafetyregulationsinsomecountries)thesetshouldberestoredtoits
originalconditionandonlypartsidenticaltothosespecifiedshouldbeused.
POWER INPUT........................... 120 V AC 60 Hz
POWER RATING .......................................... 69 W
PICTURE SIZE ..................... 580cm2(89.9sq inch)
CONVERGENCE .................................... Magnetic
SWEEP DEFLECTION ........................... Magnetic
FOCUS....................... Hi-Bi-Potential Electrostatic
INTERMEDIATE FREQUENCIES
Picture IF Carrier Frequency............. 45.75 MHz
Sound IF Carrier Frequency ............. 41.25 MHz
Color Sub-Carrier Frequency............ 42.17 MHz
(Nominal)
AUDIO POWER
OUTPUT RATING ........ 0.9W (at 10% distortion)
SPEAKER
SIZE ................................................ 8cm(Round)
VOICE COIL IMPEDANCE ....... 8ohm at 400 Hz
ANTENNA INPUT IMPEDANCE
VHF/UHF ............................75 ohm Unbalanced
TUNING RANGES
VHF-Channels .......................................2thru 13
UHF-Channels .....................................14thru 69
CATV Channels....................................1thru 125
USA: (EIA, Channel Plan)
ELECTRICAL SPECIFICATIONS
Specifications are subject to change without prior
notice.
13K-M100/150
CK13M10/15
COLOR TELEVISION
Chassis No. SN-80
MODELS
SHARP CORPORATION This document has been published to be used for
after sales service only.
The contents are subject to change without notice.
S28L513K-M100

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13K-M100/150
CK13M10/15
IMPORTANT SERVICE SAFETY PRECAUTION
Service work should be performed only by qualified service technicians who are thoroughly familiar with
all safety checks and servicing guidelines which follow:
WARNING
1. For continued safety, no modification of any circuit
should be attempted.
2. Disconnect AC power before servicing.
3. Semiconductor heat sinks are potential shock
hazards when the chassis is operating.
4. The chassis in this receiver has two ground systems
whichareseparated by insulation material.The non-
isolated (hot) ground system is for the B+ voltage
regulator circuit and the horizontal output circuit.The
isolatedground systemis forthe low B+ DCvoltages
and the secondary circuit of the high voltage
transformer.
To prevent electrical shock use an isolation
transformer between the line cord and power
receptacle, when servicing this chassis.
SERVICING OF HIGH VOLTAGE SYSTEM
AND PICTURE TUBE
When servicing the high voltage system, re-
move the static charge by connecting a 10k
ohmresistor in series with an insulated wire
(such as a test probe) between the picture
tube ground and the anode lead. (AC line
cord should be disconnected from AC
outlet.)
1. Picture tube in this receiver employs integral
implosion protection.
2. Replace with tube of the same type number for
continued safety.
3. Do not lift picture tube by the neck.
4. Handle the picture tube only when wearing
shatterproof goggles and after discharging the high
voltage anode completely.
CAUTION: FOR CONTINUED
PROTECTION AGAINST A
RISK OF FIRE, REPLACE
ONLY WITH SAME TYPE 4A-
125V FUSE.
4A 125V
X-RADIATION AND HIGH VOLTAGE
LIMITS
1. Be sure all service personnel are aware of the
proceduresandinstructionscoveringX-radiation.The
only potential source of X-ray in current solid state
TVreceivers is thepicturetube. However, the picture
tubedoesnot emit measurableX-Rayradiation if the
high voltage is as specified in the "High Voltage
Check" instructions.
It is only when high voltage is excessive that X-
radiation is capable of penetrating the shell of the
picture tube including the lead in glass material. The
importantprecautionistokeepthehigh voltagebelow
the maximum level specified.
2. It is essential that service personal have available at
all times an accurate high voltage meter.
The calibration of this meter should be checked
periodically.
3. Highvoltageshould alwaysbe keptatthe ratedvalue
−no higher. Operation at higher voltages may cause
a failure of the picture tube or high voltage circuitry
and; also under certain conditions, may produce
radiation that exceeds specifications.
4. Whenthehigh voltageregulatoris operatingproperly
thereisnopossibilityofanX-radiation problem.Every
time a color chassis is serviced, the brightness
should be tested while monitoring the high voltage
with a meter to be certain that the high voltage does
notexceed thespecified valueandthat itis regulating
correctly.
5. Do not use a picture tube other than that specified or
make unrecommended circuit modifications to the
high voltage circuitry.
6. Whentroubleshootingandtakingtestmeasurements
ona receiverwith excessivehighvoltage,avoidbeing
unnecessarily close to the receiver.
Donotoperate the receiver longer than isnecessary
to locate the cause of excessive voltage.

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13K-M100/150
CK13M10/15
RETBEFOREURNING THE RECEIVER
(Fire & Shock Hazard)
Before returning the receiver to the user, perform
the following safety checks.
æConnecttheresistor connection to allexposed metal
parts having a return to the chassis
(antenna, metal cabinet, screw heads, knobs and
control shafts, escutcheon, etc.) and measure the
AC voltage drop across the resistor.
AII check must be repeated with the AC line cord
plug connection reversed. (IF necessary, a non-
polarized adapter plug must be used only for the
purpose of completing these check.)
Anycurrent measured mustnotexceed 0.5 milliamp.
Any measurements not within the limits outlined
above are indicative of a potential shock hazard and
corrective action must be taken before returning the
instrument to the customer.
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SAFETY NOTICE
Many electrical and mechanical parts in television
receivers have special safety-related characteristics.
These characteristics are often not evident from visual
inspection, nor can protection afforded by them be
necessarilyincreasedbyusingreplacement components
rated for higher voltage, wattage, etc.
Replacement parts which have special safety
characteristics are identified in this manual; electrical
components having such features are identified by "å"
and shaded areas in the Replacement Parts Lists and
Schematic Diagrams.
IMPORTANT SERVICE SAFETY PRECAUTION
(Continued)
1. Inspect all lead dress to make certain that leads are
not pinched or that hardware is not lodged between
the chassis and other metal parts in the receiver.
2. Inspect all protective devices such as non-metallic
control knobs, insulating materials, cabinet backs,
adjustment and compartment covers or shields,
isolation resistor-capacity networks, mechanical
insulators, etc.
3. To be sure that no shock hazard exists, check for
leakage current in the following manner.
æPlug the AC cord directly into a 120 volt AC outlet,
(Do not use an isolation transformer for this test).
æUsing to clip leads, connect a 1.5k ohm, Iê watt
resistor paralleled by a 0.15µF capacitor in series
with all exposed metal cabinet parts and a known
earth ground, such as electrical conduit or electrical
ground connected to earth ground.
æUse anAC voltmeter having with 5000 ohm per volt,
orhigher, sensitivity tomeasurethe AC voltage drop
across the resistor.
AC
VOLTMETER
1.5k ohm
10w
0.15µF
TEST PROBE
TO EXPOSED
METAL PARTS CONNECT TO
KNOWN EARTH
GROUND
For continued protection, replacement parts must be
identical to those used in the original circuit.
The use of substitute replacement parts which do not
have the same safety characteristics as the factory
recommended replacement parts shown in this service
manual, may create shock, fire, X-radiation or other
hazards.

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13K-M100/150
CK13M10/15
PRECAUTIONS A PRENDRE LORS DE LA REPARATION
Ne peut effectuer la réparation qu' un technicien spécialisé qui s'est parfaitement
accoutumé à toute vérification de sécurité et aux conseils suivants.
AVERTISSEMENT
1. N'entreprendre aucune modification de tout circuit.
C'est dangereux.
2. Débrancher le récepteur avant toute réparation.
3. Les déversoirs thermiques à semi-conducteurs
peuvent présenter un danger de choc électrique
lorsque le réceqteur est en marche.
4. Le châssis de ce récepteur possède deux systèmes
de masse qui sont séparées par du matériel
d'isolation. Le système de masse non-isolée (sous
tension) est pour le circuit du régulateur de tension
+ B et le circuit de sortie horizontale. Le système de
masseisoléeest pour les tensions DC +Bbasses et
lecircuit secondairedu transformateurhautetension.
Pour éviter tout risque d'électrocution lors de
l'entretien de ce châssis, utiliser un transformateur
d'isolation entre le cordon de ligne et la prise de
courant.
PRECAUTION:POUR LA
PROTECTION CONTINUE
CONTRE LES RISQUES
D'INCENDIE, REMPLACER LE
FUSIBLE PAR UN FUSIBLE DE
MEME TYPE 4A-125V.
4A 125V
REPARATION DU SYSTEME AHAUTE TEN-
SION ET DU TUBE-IMAGE
Lors de la réparation de ce systéme,
supprimer la charge statique en branchant
une résistance de 10 kΩen série avec un fil
isolé (comme une sonde d'essai) entre la
mise à la terre du tube-image et le fil
d'anodel.(Le corden d'alimentation doit être
retiré de la prise murale.)
1. Le tube image dans ce récepteur emploie une
protection intégrée contre l'implosion.
2. Par mesure de sécurité, changer le tube-image pour
un tube du même numéro de type.
3. Ne pas lever le tube-image par son col.
4. Nemanipulerletube-imagequ'enporantdeslunettes
incassables et qu'après avoir déchargé totalement
la haute tension.
LIMITES DES RADIATIONS X ET DE LA
HAUTE TENSION
1. Tout le personnel réparateur doit être instruit des
instructions et procédés relatifs aux radiations X.
Le tube-image, seule source de rayons X dons les
téleviseurs transistorisés, n'émet pourtant pas de
rayonsmesurables si lahautetension est maintenue
à un niveau préconisé dans la section "Vérification
de la haute tension".
C'estseulementquandlahautetensionest excessive
que les rayons X peuvent entrer dans l'enveloppe
du tube-image y compris le conducteur de verre. Il
est important de maintenir la haute tension en-
dessous du niveau spécifié.
2. Il est essentiel que le réparateur ait sous la main un
voltmètreàhautetensionqui doitêtre périodiquement
étalonné.
3. La haute tension doit toujours être maintenue à la
valeur de régime -et pas plus haute. L'opération à
des tensions plus élevées peut entraîner une panne
du tube-image ou du circuit à haute tension et, dans
certaines conditions, peut entraîner une radiation
dépassant les niveaux préscrits.
4. Quand le régulateur à haute tension fonctionne
correctement, il n'y a aucun problème de radiation
X. Chaque fois qu'un châssis couleurs est réparé, la
luminosité doit être examinée bout en contrôlant la
haute tension à l'aide d'un voltmètre pour s'assurer
que la haute tension ne dépasse pas la valeur
spécifiée et qu'elle soit correctement réglée.
5. Nepasutiliser untube-imageautre queceluispécifié
et ne pas effectuer de modifications déconseillées
du circuit à haute tension.
6. Lors de la recherche des pannes et des mesures
d'essai sur un récepteur qui présente une haute
tension excessive, éviter de s'approcher inutilement
du récepteur.
Nepasfaire fonctionner le récepteurpluslongtemps
que nécessaire pour localiser la cause de la tension
excessive.

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13K-M100/150
CK13M10/15
VERIFICATIONS CONTRE L'INCEN-DIE ET
LE CHOC ELECTRIQUE
Avant de rendre le récepteur à l'utilisateur, effectuer
les vérifications suivantes.
æToucheravec lasonded'essai lespiècesmétalliques
exposées qui présentent une voie de retour au
châssis (antenne, coffret métallique, tête des vis,
arbres de commande et des boutons, écusson, etc.)
et mesurer la chute de tension CA en-travers de la
résistance. Toutes les vérifications doivent être
refaites après avoir inversé la fiche du cordon
d'alimentation.(Si nécessaire,uneprise d'adpatation
non polarisée peut être utilisée dans le but de
terminer ces vérifications.)
Tous les courants mesurés ne doivent pas dépasser
0,5 mA.
Dans le cas contraire, il y a une possibilité de choc
électrique qui doit être supprimée avant de rendre le
récepteur au client.
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AVIS POUR LA SECURITE
Denombreuses pièces,électriques etmécaniques,dans
lestéléviseurs présententdes caractéristiquesspéciales
relativesà lasécurité,qui nesontsouvent pasévidentes
à vue. Le degré de protection ne peut pas être
nécessairement augmentée en utilisant des pièces de
remplacement étalonnées pour haute tension,
puissance, etc.
Les pièces de remplacement qui présentent ces
caractéristiques sont identifiées dans ce manuel; les
piècesélectriquesqui présentent ces particularitéssont
PRECAUTIONS A PRENDRE LORS DE LA REPARATION
(Suite)
1. Inspectertousles faisceauxdecâbles pours'assurer
que les fils ne soient pas pincés ou qu'un outil ne
soit pas placé entre le châssis et les autres pièces
métalliques du récepteur.
2. Inspecter tous les dispositifs de protection comme
les boutons de commande non-métalliques, les
isolants,le dosdu coffret,les couverclesou blindages
de réglage et de compartiment, les réseaux de
résistance-capacité, les isolateurs mécaniques, etc.
3. S'assurer qu'il n'y ait pas de danger d'électrocution
en vérifiant la fuite de courant, de la facon suivante:
æBrancherle cordond'alimentationdirectem-ent àune
prise de courant de 120V. (Ne pas utiliser de
transformateur d'isolation pour cet essai).
æAl'aide dedeux filsà pinces,brancher unerésistance
de1,5 kΩ10watts enparallèleavecuncondensateur
de0,15µFen sérieavec toutesles piècesmétalliques
exposées du coffret et une terre connue comme une
conduite électrique ou une prise de terre branchée à
la terre.
æUtiliser un voltmètre CA d'une sensibilité d'au moins
5000Ω/Vpour mesurerlachute detensionen travers
de la résistance.
AC
VOLTMETER
1.5k ohm
10w
0.15µF
TEST PROBE
TO EXPOSED
METAL PARTS CONNECT TO
KNOWN EARTH
GROUND
AUX PIECES
METALLIQUES
EXPOSEES
BRANCHER A UNE
TERRE CONNUE
Voltmètre CA
identifiées par la marque " å" et hachurées dans la
liste des pièces de remplacement et les diagrammes
schématiques.
Pour assurer la protection, ces pièces doivent être
identiques à celles utilisées dans le circuit d'origine.
L'utilisation de pièces qui n'ont pas les mêmes
caractéristiques que les pièces recommandées par
l'usine, indiquées dans ce manuel, peut provoquer des
électrocutions, incendies, radiations X ou autres
accidents.
SONDE D'ESSAI

6
13K-M100/150
CK13M10/15
LOCATION OF USER'S CONTROL

7
13K-M100/150
CK13M10/15
INSTALLATION AND SERVICE INSTRUCTIONS
Note: (1) When performing any adjustments to resistor controls and transformers use non-metallic
screwdriver or TV alignment tools.
(2) Before performing adjustment, TV set must be on at least 15 minutes.
HIGH VOLTAGE CHECK
High voltage is not adjustable but must be checke
to verify that the receiver is operating within safe
and efficient design limitations as specified checks
should be as follows:
1. Connect an accurate high voltage meter between
ground and anode of picture tube.
2. Operate receiver for at least 15 minutes at 120VAC
line voltage, with strong air signal or properly tuned
in test signal.
3. Set service mode on (See next page.),Service
No.S19 and Bus data "01" (Y-mute on).
4. Thevoltageshould be approximately24.0kV (at zero
beam)."
Ifacorrectreadingcannot beobtained,checkcircuitry
for malfunctioning components. After the voltage
test,make Y-mute off (normal mode).
CIRCUIT PROTECTION
The receiver is protected by a 4.0A fuse (F701),
mounted on PWB-A, wired into one side of the AC
line input.
X-RADIATION PROTECTOR CIRCUIT
TEST
1. After service has been performed on the horizontal
deflection system, high voltage system, B + system,
test the X-Radiation protection circuit to ascertain
proper operation as follows:
1) Apply 120V AC using a variac transformer for
accurate input voltage.
2) Allow for warm up and adjust all customer controls
for normal picture and sound.
3) Select a local channel.
4) Connecta digital voltmeter to TP653 andmakesure
that the voltmeter reads 21.3V ±1.5V.
5) Apply external 28.9V DC at TP653 by using an
external DC supply, TV must be shut off.
6) To reset the protector, unplug theAC cord and make
ashort circuit betweenTP651 andTP652.Nowmake
sure that normal picture appears on the screen.
7) If the operation of the horizontal oscillator does not
stopinstep5, the circuit must be repaired before the
set is returned to the customer.

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13K-M100/150
CK13M10/15
1.Service mode -
Beforeputtingunit into the servicemode,check, that
customer adjustments are in the normal mode. use
the reset function in the video adjust menu to ensure
customer controls are in their
To enter the service mode .
While Pressing the Vol-up and Ch-up buttons at
once,plug the AC cord into a wall socket.Now the TV
set is switched on and enters the service mode.
To exit the service mode, shut the television off by
pressing the power button.
2.Service number selection
Once in the service mode, press the channel up or
channel down button on the remote transmitter or at
the set. the service adjustment number will vary in
increments of one, from "S01" to "S19".
Select the item you wish to adjust.
3.Data number selection
Press the volume up or down button to adjust the
data number.
Figure B.
S01 D:00
02
For adjustments of this model, the bus data is convered to various analog signals by the D-A converter
circuit.
Note: There are still a few analog adjustments in this series such as focus and master screen voltage.
Follow the steps below whenever service adjustment is required. See Figure "B" to determine if service
adjustments are required.
55S01
DA1A NUMBER
(DEC)
(DECIMAL)
DATA NUMBER
(HEX )
(HEXADEC:MAL)
SERVICE ADJUSTMENT NUMBER

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13K-M100/150
CK13M10/15
S01 PICTURE 55 00-7F
S02 TINT 46 00-7F
S03 COLOR 32 00-7F
S04 BRIGHTNESS 40 00-7F
S05 SHARPNESS 28 00-3F Must be set to “24”
S06 VERTICAL PHASE 00 00-07 Must be set between "0" to "03"
S07 HORIZONTAL PHASE 12 00-1F
S08 RF-AGC 2A 00-3F
S09 VERTICALAMP 20 00-3F
S10 VCO 2C 00-7F
S11 R CUT-OFF 00 00-FF
S12 G CUT -OFF 00 00-FF
S13 B CUT-OFF 00 00-FF
S14 G GAIN 7F 00-FF
S15 B GAIN 7F 00-FF
S16 TRAP(3.58MHz) 00 00 or 01 Must be set to “00”
S17 BALANCE 20 00-3F Must be set to “20”
S18 C.C.POSITION 18 00-7F
S19 Y-MUTE 00 00,01,03 00=NORMAL, 01=no”Y, 03=NO VERTICAL”
SERVICE
NUMBER DATA ADJUSTMENT CONTENTS
ADJUSTMENT ITEM RANGE
Holding down both the CH UP/DOWN keys on the TV set at service mode for more then 2 seconds will automatically
write the above initial values into IC2101.
NECESSARY UNNECESSARY
ADJUSTMENT NOTES
PART REPLACED
IC2001
IC201
IC2101
CRT
The adjustment is needed to compensate for
characteristics of parts including IC201.
Data is stored in IC2101.
Adjust items related to picture tube only.
Holding down both the CH UP/DOWN keys on the TV set
at service mode for more than 2 seconds will automatically
write the above initial values into IC2101.
INITIAL VALUE
X
X
X
X
Table - A
Table - B

10
13K-M100/150
CK13M10/15
ËË
ËË
Ë adjustment
VCO Adjustment
1. Connectadigital voltmeterbetween pin(44)of IC201
and ground.
2. Select a good local channel.
3. Enter the service mode. select adjustment "S10".
4. Adjust the data so that digital voltmeter should read
2.2V
5. Adjustment is complete, remove the volt-meter,
return to "normal" mode.
RF AGC Adjustment
1. Have unit receive a good local channel.
2. Entertheservicemodeandselectserviceadjustment
"S08".
3. Set the data value to point where no noise or beat
appears.
4. Select another channel to confirm that no noise or
beat appears.
NOTE 1 :Youwillhave tocome outof theservice
mode to select another channel.
NOTE 2 :Setting the data to "00" will pro-duce a
black raster.
Screen adjustment
1. Connect a digital voltmeter between TP852 and
TP853 on the CRT socket PWB.
Note:These test points may not be provided.
Then connect the voltmeter to both ends of R852
located near Q852 on the foil side.
2. Select a good local channel.
3. Entertheservicemodeandselectserviceadjustment
“S03” and set the data value to “00” to set the color
level to minimum.(Record original data code under
adjustment“S03” before changing)You may skipthis
step if you selected a B/W picture or monoscope
pattern.
4. Select service adjustment “S19” and adjust the data
value to “01” this turn off the luminance signal (Y-
mute).
5. Select service adjustment "S04" and adjust data
value to obtain 0.17 volts on the digital voltmeter.
6. Adjust the master screen cotrol untill raster darkens
to the point where raster is barely seen.
7. Adjust service adjustments "S11" red, "S12" green
and "S13" blue to obtain a good grey scale with
normal whites at low brightness level.
8. Select service adjustment “S19” and reset data to
“00”.
Select service adjustment “S03” and reset data to
obtain normal color level.
9. Remove digital voltmeter.
Reset master screen cotrol to obtain normal
brightness range.
White balance adjustment
1. Have unit receive a good local channel.
2. Enter the service mode. select service adjustment
"S03" and set to "00" ( minimum color) . "S03" does
not haveto be adjustedifyou selected aB/Wpicture
or monoscope pattern.
3. Alternately adjust service adjustment data of "S14"
and"S15"untill a goodgreyscale with normalwhites
is obtained.
4. Select service adjustment "S03" and adjust data to
obtain normal color level.
Sub-picture adjustment
1. Have unit receive a good local channel.
2. Make sure the customer picture control is set to
maximum.
3. Entertheservicemodeandselectserviceadjustment
"S01".
4. Adjust the data value to achieve normal contrast
range.
Sub-Tint Adjustment
1. Have unit receive a good local channel.
2. Set customer tint control to center of it's range.
3. Entertheservicemodeandselectserviceadjustment
"S02".
4. Adjust"S02" data valueto obtain normalfleshtones.