Sharp 32L-S500 User manual

1
32L-S500,32L-X2000
CL32S50,36L-X2000
COLOR TELEVISION
Chassis No. SN-93
In the interests of user-safety (Required by safety regulations in some countries) the set should be restored to its
original condition and only parts identical to those specified should be used.
S79J832L-S500
SHARP CORPORATION This document has been published to be used for after
sales service only.
The contents are subject to change without notice.
»ELECTRICAL SPECIFICATIONS........................................................................................................... 1
»IMPORTANT SERVICE SAFETY PRECAUTION ..................................................................................2
»LOCATION OF USER'S CONTROL....................................................................................................... 6
»INSTALLATION AND SERVICE INSTRUCTIONS .................................................................................7
»CHASSIS LAYOUT .............................................................................................................................. 14
»BLOCK DIAGRAM ............................................................................................................................... 18
»SCHEMATIC DIAGRAMS .................................................................................................................... 22
»PRINTED WIRING BOARD ASSEMBLIES .......................................................................................... 50
»REPLACEMENT PARTS LIST ............................................................................................................. 55
»PACKING OF THE SET ....................................................................................................................... 75
Page
CONTENTS
SERVICE MANUAL
32L-S500, 32L-X2000
CL32S50, 36L-X2000
MODELS
ELECTRICAL SPECIFICATIONS
AUDIO POWER
OUTPUT RATING.................... 3W + 3W (at 10% distortion and
Dual CH Operate)
SPEAKER
SIZE ............................................................... 12 x 6 cm (2 pcs.)
VOICE COIL IMPEDANCE............................... 6 ohm at 400 Hz
ANTENNA INPUT IMPEDANCE
VHF/UHF .................................................... 75 ohm Unbalanced
TUNING RANGES
VHF-Channels .............................................................. 2 thru 13
UHF-Channels ............................................................ 14 thru 69
CATV Channels .......................................................... 1 thru 125
(EIA, Channel Plan U.S.A.)
POWER INPUT ..................................................... 120V AC 60 Hz
POWER RATING
32L-S500, CL32S50 ..........................................................145W
32L-X2000 .........................................................................150W
36L-X2000 .........................................................................165W
PICTURE SIZE
32L-S500, CL32S50, 32L-X2000 ............ 3,073cm2 (476sq inch)
36L-X2000 ...............................................3,905cm2 (605sq 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)
Specifications are subject to change without
prior notice.

2
32L-S500,32L-X2000
CL32S50,36L-X2000
IMPORTANT SERVICE SAFETY PRECAUTION
Service work should be performed only by qualified service technicians who are
thoroughly familiar with all safety checks and the servicing guidelines which follow:
CAUTION: FOR CONTINUED
PROTECTION AGAINST A
RISK OF FIRE, REPLACE
ONLY WITH SAME TYPE 5A-
125V FUSE.
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
tube does not emit measurable X-Ray radiation, 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 the glass material.
The important precaution is to keep the high voltage
below the maximum level specified.
2. It is essential that servicemen have available at all
times an accurate high voltage meter.
The calibration of this meter should be checked
periodically.
3. Highvoltage should alwaysbekeptat the rated value
−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 in exceeding of desirable levels.
4. Whenthehigh voltage regulatorisoperatingproperly
thereisnopossibilityofanX-radiationproblem. Every
time a colour chassis is serviced, the brightness
should be tested while monitoring the high voltage
with a meter to be certain that the high voltage does
notexceedthe specified value and thatitisregulating
correctly.
5. Do not use a picture tube other than that specified or
make unrecommended circuit modifications to the
high voltage circuitry.
6. Whentroubleshooting and taking test measurements
onareceiverwithexcessivehighvoltage,avoid being
unnecessarily close to the receiver.
Do not operate the receiver longer than is necessary
to locate the cause of excessive voltage.
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
which are separated by insulating material. The non-
isolated (hot) ground system is for the B+ voltage
regulatorcircuit andthe horizontal outputcircuit.The
isolatedground system isfor the lowB+ DC voltages
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,
remove the static charge by connecting a
10k ohm resistor in series with an insulated
wire (such as a test probe) between the pic-
ture 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.
5A 125V

3
32L-S500,32L-X2000
CL32S50,36L-X2000
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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
necessarilyincreasedbyusingreplacementcomponents
rated for higher voltage, wattage, etc.
Replacement parts which have these 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.
•Plug the AC cord directly into a 120 volt AC outlet,
(Do not use an isolation transformer for this test).
•Using two clip leads, connect a 1.5k ohm, 10 watt
resistorparalleledbya0.15µFcapacitor in series with
all exposed metal cabinet parts and a known earth
ground,suchas electrical conduit or electricalground
connected to earth ground.
•Use anAC voltmeter having with 5000 ohm per volt,
or higher, sensitivity to measure the AC voltage drop
across the resistor.
BEFORE RETURNING THE RECEIVER
(Fire & Shock Hazard)
Before returning the receiver to the user, perform
the following safety checks.
•Connect the resistor connection to all exposed 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 checks must be repeated with the AC ine 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 indicate of a potential shock hazard and
corrective action must be taken before returning the
instrument to the customer.
For continued protection, replacement parts must be
identical to those used in the original circuit. The use of
substitutereplacementpartswhichdonothavethe same
safety characteristics as the factory recommended
replacement parts shown in this service manual, may
create shock, fire, X-radiation or other hazards.
1.5k ohm
10W
0.15µF
TEST PROBE
TO EXPOSED
METAL PARTS CONNECT TO
KNOWN EARTH
GROUND
AC
VOLTMETER

4
32L-S500,32L-X2000
CL32S50,36L-X2000
PRECAUTIONS A PRENDRE LORS DE LA REPARATION
ËNe 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
masse isolée est pour les tensions DC B+ basses et
lecircuitsecondaire du transformateur haute tension.
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.
5A 125V
PRECAUTION: POUR LA
PROTECTION CONTINUE
CONTRE LES RISQUES
D'INCENDIE, REMPLACER LE
FUSIBLE PAR UN FUSIBLE DE
MEME TYPE 5A-125V.
REPARATION DU SYSTEMEA HAUTE 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. Nemanipulerle tube-image qu'en porant des lunettes
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'estseulementquandlahautetensionestexcessive
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
voltmètreàhautetensionquidoitêtrepériodiquement
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. Nepas utiliser untube-imageautreque celui spécifié
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.
Ne pas faire fonctionner le récepteur plus longtemps
que nécessaire pour localiser la cause de la tension
excessive.

5
32L-S500,32L-X2000
CL32S50,36L-X2000
VERIFICATIONS CONTRE L'INCEN-DIE ET
LE CHOC ELECTRIQUE
Avant de rendre le récepteur à l'utilisateur, effectuer
les vérifications suivantes.
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AVIS POUR LA SECURITE
Denombreusespièces,électriquesetmécaniques,dans
lestéléviseursprésentent des caractéristiques spéciales
relativesà la sécurité, quinesont souvent pas évidentes
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
pièces électriques qui présentent ces particularités sont
PRECAUTIONS A PRENDRE LORS DE LA REPARATION
(Suite)
1. Inspectertous les faisceaux decâblespour s'assurer
queles filsne soient paspincés ou qu'unoutil 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,ledosducoffret,lescouverclesoublindages
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:
•Brancherlecordon d'alimentation directem-ent àune
prise de courant de 120V. (Ne pas utiliser de
transformateur d'isolation pour cet essai).
•Al'aidededeuxfils à pinces, brancher une résistance
de1,5kΩ10wattsenparallèleavec un condensateur
de0,15µFensérie avec toutes les piècesmétalliques
exposées du coffret et une terre connue comme une
conduite électrique ou une prise de terre branchée à
la terre.
•Utiliser un voltmètre CA d'une sensibilité d'au moins
5000Ω/Vpour mesurer lachutedetension en travers
de la résistance.
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.
•Toucheravec la sonded'essailespièces métalliques
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.(Sinécessaire, une prised'adpatation
nonpolariséepeutêtreutiliséedanslebut 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.
1.5k ohm
10W
0.15µF
SONDE D'ESSAI
AUX PIECES
METALLIQUES
EXPOSEES
BRANCHER A UNE
TERRE CONNUE
Voltmètre CA

6
32L-S500,32L-X2000
CL32S50,36L-X2000
LOCATION OF USER'S CONTROL

7
32L-S500,32L-X2000
CL32S50,36L-X2000
CIRCUIT PROTECTION
The receiver is protected by a 5.0A fuse (F701),
mounted on PWB-C, wired into one side of the AC
line input.
X-RADIATION PROTECTOR CIRCUIT TEST
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. Receive a good local channel.
4. Connect a digital voltmeter to TP653 and make sure
that the voltmeter reads 11.83±0.7V (32L-S500,
CL32S50, 32L-X2000)/11.80±0.7V (36L-X2000).
5. Apply external 14.5V DC at TP653 by using an
external DC supply, TV must be shut off.
6. To reset the protector, unplug the AC cord and plug
the AC cord power on. Now make sure that normal
picture appears on the screen.
7. If the operation of the horizontal oscillator does not
stop in step 5, the circuit must be repaired before the
set is returned to the customer.
HIGH VOLTAGE CHECK
High voltage is not adjustable but must be checked
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 120V AC
linevoltage,withastrongairsignalor a properly tuned
in test signal.
3. Enter the service mode and select the service No.
"S21" and Bus data "01" (Y-mute on).
4. Thevoltage should be approximately, 32.8kV(atzero
beam).
Ifacorrectreadingcannotbeobtained,checkcircuitry
formalfunctioningcomponents. Afterthevoltagetest,
make Y-mute off to the normal mode.
INSTALLATION AND SERVICE INSTRUCTIONS
Note: (1)When performing any adjustments to resistor controls and transformers use non-metallic
screwdrivers or TV alignment tools.
(2)Before performing adjustments, the TV set must be on at least 15 minutes.

8
32L-S500,32L-X2000
CL32S50,36L-X2000
S01 55 2
Figure A.
For adjustments of this model, the bus data is converted 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 the service adjustment is required. See "Table-C" to determine, if serv-
ice adjustments are required.
1. Service Mode
Before putting unit into the service mode, check that
customer adjustments are in the normal mode. Use
the reset function in the video adjustment menu to
ensure customer controls are in their proper (reset)
position.
2. Service Number Selection
Once in the service mode, press the Ch-up or Ch-
down button on the remote controller or at the set.
The service adjustment number will vary in
increments of one, from "S01" to "C14". Select the
item you wish to adjust.
3. Data Number Selection
Press the Vol-up or down button to adjust the data
number.
To enter the service mode and exit serv-
ice mode.
While pressing the Vol-up and Ch-up buttons at the
sametime, 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, turn the television off by
pressing the power button.
DATANUMBER
CHANNEL
SERVICE ADJUSTMENT NUMBER

9
32L-S500,32L-X2000
CL32S50,36L-X2000
S01 PICTURE HEIGHT 71 00~127
S02 V-LINEARITY 27 00~31
S03 V-S CORRECTION 40 00~63
Must be set to "40" *36L-X2000 Must be set to "37"
S04 PICTURE WIDTH 50 00~63
S05 E-W PARABOLA 15 00~63
S06 E-W CORNER 13 00~31
S07 TRAPEZIUM 65 00~127
S08 AGC SW 01 00~01 Must be set to "01"
S09 PICTURE (SUB CONTRAST) 20 00~31
S10 TINT 31 00~63
S11 COLOR (SUB COLOR) 15 00~31
S12 BRIGHT (BRIGHTNESS) 58 00~101
S13 SHARP (SHARPNESS) 00 00~27 Must be set to "00"
S14 V-POSITION 00 00~07 Must be set to "00"
S15 H-POSITION 17 00~31
S16 R CUT-OFF 64 00~255
S17 G CUT-OFF 64 00~255
S18 B CUT-OFF 64 00~255
S19 G (R) DRIVE 64 00~127
S20 B DRIVE 64 00~127
S21 Y-MUTE/V-OFF 00 00~02
"00" = NORMAL, "01" = No Y, "02" = No VERTICAL
S22 Y-γCURVE 03 00~03 Must be set to "03"
S23 VSM PHASE 01 00~03 Must be set to "02"
S24 APACON PEAK f0 01 00~07 Must be set to "01"
S25 DC RESTORATION RATE 21 00~63 Must be set to "21"
S26 DC RESTORATION LIMIT 00 00~03 Must be set to "00"
S27 BLACK STRETCH POINT 03 00~07 Must be set to "03"
S28 APL VS BPS 01 00~03 Must be set to "01"
S29 B.L.C. 01 00~01 Must be set to "01"
S30 DYNAMIC ABL POINT 04 00~07 Must be set to "04"
S31 DYNAMIC ABL GAIN 04 00~07 Must be set to "04"
S32 ABL POINT 03 00~07 Must be set to "03"
S33 ABL GAIN 03 00~07 Must be set to "03"
S34 Y-DL 01 00~01 Must be set to "00"
S35 TOF-f0 07 00~07 Must be set to "07"
S36 TOF-Q 04 00~07 Must be set to "04"
S37 VSM GAIN 01 00~03 Must be set to "01"
S38 OSD SL 00 00~01 Must be set to "00"
S39 C-DECODE 161 00~255 Must be set to "161"
S40 OSD POSITION 11 00~15
S41 NERGY SAVE 10 00~53 Must be set to "10"
S42 VIDEO TINT 26 00~63
M01 INPUT LEVEL (ATT) 07 00~15
M02 MTS VCO 37 00~63
M03 FILTER 30 00~63
M04 WIDE BAND 35 00~63
M05 SPECTRAL 22 00~63
P01 PIP Y-LEVEL (CONTRAST) 43 00~127
P02 PIP TINT (TINT) 41 00~63 Must be set to "41"
P03 PIP COLOR (COLOR-SAT) 55 00~127
P04 Y-OFFSET (Y-OFFSET) 09 00~31 Must be set to "09"
P05 PIP H-POSI (HXA) 10 00~255 Must be set to "10"
P06 BGP (HADJ) 00 00~15 Must be set to "00"
P07
FREE RUN (FREE-RUN-ADJ) 11 00~15 Must be set to "11"
C01 PICTURE-C (SUB CONTRAST) 20 00~31 Must be set to "20"
C02 TINT-C 21 00~63 Must be set to "21"
C03 COLOR-C (SUB COLOR) 15 00~63 Must be set to "15"
INITIAL VALUE
ADJUSTMENT ITEM DATA ADJUSTMENT CONTENTS
RANGE
SERVICE
NUMBER
Table - A

10
32L-S500,32L-X2000
CL32S50,36L-X2000
ADJUSTMENT ITEM
Table - A
C04 BRIGHT-C (BRIGHTNESS) 58 00~101
C05 SHARP-C (SHARPNESS) 00 00~27 Must be set to "00"
C06 V-POSITION-C 00 00~07 Must be set to "00"
C07 H-POSITION-C 19 00~31
C08 R CUT-OFF-C 64 00~255
C09 G CUT-OFF-C 64 00~255
C10 B CUT-OFF-C 64 00~255
C11 G (R) DRIVE-C 64 00~127
C12 B DRIVE-C 64 00~127
C13 VSM GAIN-C 02 00~03 Must be set to "02"
C14 COMP. C-DECODER 105 00~255 Must be set to "105"
SERVICE
NUMBER INITIAL VALUE RANGE
DATA ADJUSTMENT CONTENTS
NECESSARY UNNECESSARY
ADJUSTMENT NOTES
PART REPLACED
IC2001
IC2002 X
IC3001 X
CRT X
IC401 X
X
IC1801
Data is stored in IC2002.
The adjustment is needed to compensate for characteristics
of parts including IC401.
Holding down both the CH-up/down buttons on the TV set in
the service mode for more than 2 seconds will automatically
write the above initial values into IC2002. Then perform a
complete adjustment.
Adjust items related to picture tube only.
Adjust items related to MTS only (M01~M05).
Holdingdown both theCH-up/downbuttonson the TV setatservice mode for morethan2 seconds willautomatically
write the above initial values into IC2002.
Adjust items related to P-IN-P only (P01~P07).
X
Table - C
ADJUSTMENT ITEM
I01 E-SOUND 01 00 / 01 01 01
I02 DSE 01 00 / 01 00 01
I03 SRS 01 00 / 01 00 01
I04 SRS 32, 36/27 01 00 / 01 01 01
I05 A/V IN 3/2 01 00 / 01 00 01
I06 V-CHIP 01 00 / 01 01 01
I07 PIP ON/OFF 01 00 / 01 01 01
I08 COMPNENT 01 00 / 01 00 01
I09 ENGL/ESPA 01 00 / 01 01 01
I10 DSE SHIPPED POSITION 00 00 / 01 00 00
SERVICE
NUMBER INITIAL VALUE
DATA RANGE 32L-S500, CL32S50 32/36L-X2000
ADJUSTMENT CONTENTS
Table - B

11
32L-S500,32L-X2000
CL32S50,36L-X2000
SERVICE ADJUSTMENT
Screen Adjustment
1. Receive a good local channel.
2. Enter the service mode and select the service No.
"S11" and set the data value to "00" to set the color
level to minimum. (Record original data code under
No. "S11" before changing) You may skip this step, if
you selected a B/W picture or monoscope pattern.
3. Selectthe service No. "S21" and adjust the datavalue
to "01", this turn off the luminance signal (Y-mute).
4. Select the service No. "S12" and adjust data value to
"58".
5. Adjust the master screen control until the raster
darkens to the point where raster is barely seen.
6. Adjust the service numbers "S16" red, "S17" green
and"S18"blueto obtain agoodgreyscalewithnormal
whites at low brightness level.
7. Select the service No. "S21" and reset data to "00".
Select the service No. "S11" and reset data to obtain
normal color level.
8. Reset the master screen control to obtain normal
brightness range.
White Balance Adjustment
1. Receive a good local channel.
2. Enter the service mode and select the service No.
"S11" and set to "00"(minimum color)(Recordoriginal
data code under adjustment "S11" before changing).
"S11" does not have to be adjusted, if you selected a
B/W picture or monoscope pattern.
3. Alternately adjust the service numbers "S19" and
"S20" until a good grey scale with normal whites is
obtained.
4. Selecttheservice No. "S11" andadjustdatato obtain
normal color level.
Sub-Picture Adjustment
1. Receive a good local channel.
2. Make sure the customer picture control is set to
maximum.
3. Enter the service mode and select the service No.
"S09".
4. Adjust the data value to achieve normal contrast
range.
Sub-Tint Adjustment
1. Receive a good local channel.
2. Set customer tint control to center of it's range.
3. Enter the service mode and select the service No.
"S10".
4. Adjust "S10" data value to obtain normal flesh tones.
Sub-Color Adjustment
1. Receive a good local channel.
2. Make sure the customer color control is set to center
position .
3. Enter the service mode and select the service No.
"S11".
4. Adjust "S11" data value to obtain normal color level.
Sub-Brightness Adjustment
1. Receive a good local channel.
2. Make sure the customer brightness control is set to
center position.
3. Enter the service mode and select the service No.
"S12".
4. Adjust "S12" data value to obtain normal brightness
level.
Vertical Linearity Adjustment
1. Receive a good CATV channel.
2. Set to standard setting mode.
3. Enter the service mode and select the service No.
"S02".
4. While observing the top and bottom of the screen,
adjust "S02" data value to proper vertical linearity.
Vertical Phase Adjustment
1. Enter the service mode and select the service No.
"S14".
2. Adjust data value to "00".
Note: This must be set "00" when changed data
retrace line will appear.
Vertical-Size Adjustment
1. Receive a good local channel.
2. Enter the service mode and select the service No.
"S01".
3. While observing the top and bottom of the screen,
adjust "S01" data value to proper vertical size.

12
32L-S500,32L-X2000
CL32S50,36L-X2000
Figure B.
Side Pincushion Adjustment
1. Receivea goodCATV channel orcrosshatch pattern
signal.
2. Set to standard setting mode.
3. Enter the service mode and select the service No.
"S05".
4. Adjust the data of service No. "S05" so that the
outermost line on the screen be straight.
Horizontal Position Adjustment
1. Receivea goodCATV channel orcrosshatch pattern
signal.
2. Set to standard setting mode.
3. Enter the service mode and select the service No.
"S15".
4. Adjust so that the left and right overscans are equal
to each other.
Horizontal Size Adjustment
1. Receivea goodCATV channel orcrosshatch pattern
signal.
2. Set to standard setting mode.
3. Enter the service mode and select the service No.
"S04".
4. Vary the data of service No. "S04" to obtain the best
horizontal size.
Trapezoidal Distortion Adjustment
1. Receivea goodCATV channel orcrosshatch pattern
signal.
2. Set to standard setting mode.
3. Enter the service mode and select the service No.
"S07".
4. Adjustso that theleftmostandrightmost vertical lines
are parallel to each other.
Corner Distortion Adjustment
1. Receivea goodCATV channel orcrosshatch pattern
signal.
2. Set to standard setting mode.
3. Enter the service mode and select the service No.
"S06".
4. Adjust so that the vertical lines should be straight.
Caption Position Adjustment (Horizontal)
1. Receive a good local channel.
2. Enter the service mode and select the service No.
"S40".
3. Ablack text box appears on the screen. (see Figure
B below)
4. Adjust "S40" data value so that text box is positioned
in the center of the screen.
Sharpness Adjustment
1. Receive a good local channel.
2. Enter the service mode and select the service No.
"S13".
3. Adjust data value to "00" (center of data range).

13
32L-S500,32L-X2000
CL32S50,36L-X2000
ËP-IN-P ADJUSTMENT ËMTS ADJUSTMENT
MTS Level Adjustment
1. Feed the following monaural signal to pin (14) of
IC3001.
Monaural signal : 300Hz, 245mVrms
2. Connect the rms voltmeter to pin (39) of IC3001.
3. Enter the service mode and select the service No.
"M01".
4. Adjust the data so that the rms voltmeter reads.
Spec : 490 ±10mVrms.
MTS VCO Adjustment
1. Keep the unit in no-signal state.
2. Connectthe frequencycounterto pin (39)of IC3001.
3. Connect a capacitor (100µF, 50V) in between
positive(+) side of C3005 and ground.
4. Enter the service mode and select the service No.
"M02"
5. Adjust the data so that the frequency counter reads.
Spec : 62.94 ±0.75kHz.
Filter Adjustment
1. Feed the following stereo pilot signal to pin (14) of
IC3001 .
Stereo pilot signal: 9.4kHz, 600mVrms.
2. Enter the service mode and select the service No.
"M03".
3. Adjust the data until "OK" appears in position on the
screen. Make sure the "OK" is displayed almost at
the center of the data range.
Separation Adjustment
1. Connect the rms voltmeter to pin (39) of IC3001.
2. Receive the following composite stereo signal 1.
Composite stereo signal: 30% modulation, left
channel only, noise reduction on, 300Hz
3. Enter the service mode and select the service No.
"M04".
4. Adjust the data until the AC voltage reading of the
rms voltmeter is minimum.
5. Receive the following composite stereo signal 2.
Stereo signal: 30% modulation, left channel only,
noise reduction on, 3kHz
6. Enter the service mode and select the service No.
"M05".
7. Adjust the data until the AC voltage reading of the
rms voltmeter is minimum.
8. Take the above steps 1 thru 7 again for fine
adjustment.
P-IN-P Y Level Adjustment
1. Receive a good local channel.
2. Enter the service mode and select the service No.
"P01".
3. Adjust "P01" data value to obtain normal contrast
level.
P-IN-P TINT Adjustment
1. Receive a good local channel.
2. Enter the service mode and select the service No.
"P02".
3. Adjust data value to "41".
P-IN-P Color Adjustment
1. Receive a good local channel.
2. Make sure the customer color control is set to center
position.
3. Enter the service mode and select the service No.
"P03".
4. Adjust "P03" data value to obtain normal color level.
P-IN-P Y-Off Set Adjustment
1. Receive a good local channel.
2. Enter the service mode and select the service No.
"P04".
3. Adjust data value to "09".
P-IN-P H-Position Adjustment
1. Receive a good local channel.
2. Enter the service mode and select the service No.
"P05".
3. Adjust data value to "10".
P-IN-P Burst Gate Pulse (for MAIN)
1. Receive a good local channel.
2. Enter the service mode and select the service No.
"P06".
3. Adjust data value to "00".
P-IN-P Free Run
1. Receive a good local channel.
2. Enter the service mode and select the service No.
"P07".
3. Adjust data value to "11".

14
32L-S500,32L-X2000
CL32S50,36L-X2000
87109654321
A
B
C
D
E
F
G
H
MODELS 32L-S500, CL32S50 CHASSIS LAYOUT
PWB-B
PWB-C

15
32L-S500,32L-X2000
CL32S50,36L-X2000
1716 1918151413121110
PWB-F
PWB-A

16
32L-S500,32L-X2000
CL32S50,36L-X2000
87109654321
A
B
C
D
E
F
G
H
MODELS 32L-X2000, 36L-X2000 CHASSIS LAYOUT
PWB-B
PWB-C

17
32L-S500,32L-X2000
CL32S50,36L-X2000
1716 1918151413121110
PWB-F
PWB-A

18
32L-S500,32L-X2000
CL32S50,36L-X2000
87109654321
A
B
C
D
E
F
G
H
MODELS 32L-S500, CL32S50 BLOCK DIAGRAM

19
32L-S500,32L-X2000
CL32S50,36L-X2000
1716 1918151413121110

20
32L-S500,32L-X2000
CL32S50,36L-X2000
87109654321
A
B
C
D
E
F
G
H
MODELS 32L-X2000, 36L-X2000 BLOCK DIAGRAM