SHARP 32K-X2000, 36K-X2000, CK32S60, CK36S60 Service Manual

32K-X2000 CK32S60 36K-X2000 CK36S60

SERVICE MANUAL

S68S832KX1000

COLOR TELEVISION

Chassis No. SN-83

32K-X2000 36K-X2000

MODELS

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.

CK32S60 CK36S60

CONTENTS

Page

» ELECTRICAL SPECIFICATIONS ...........................................................................................................1

» IMPORTANT SERVICE SAFETY PRECAUTION ...................................................................................2

» LOCATION OF USER'S CONTROL.......................................................................................................6

» INSTALLATION AND SERVICE INSTRUCTIONS..................................................................................7

» CHASSIS LAYOUT ...............................................................................................................................16

» DESCRIPTION OF SCHEMATIC DIAGRAM........................................................................................18

» BLOCK DIAGRAM................................................................................................................................ 19

» SCHEMATIC DIAGRAM .......................................................................................................................21

» PRINTED WIRING BOARD ASSEMBLIES ..........................................................................................28

» REPLACEMENT PARTS LIST..............................................................................................................39

» PACKING OF THE SET........................................................................................................................57

ELECTRICAL SPECIFICATIONS

POWER INPUT..................................................... 120V AC 60 Hz

POWER RATING

32K-X2000,CK32S60...................................................... 150W

36K-X2000,CK36S60...................................................... 165W

PICTURE SIZE

32K-X2000,CK32S60.............................. 3,073cm2 (476sq inch)

36K-X2000,CK36S60.............................. 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)

SHARP CORPORATION

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.)

Specifications are subject to change without prior notice.

This document has been published to be used for after sales service only. The contents are subject to change without notice.

32K-X2000 CK32S60 36K-X2000 CK36S60

Service work should be performed only by qualified service technicians who are thoroughly familiar with all safety checks and the servicing guidelines which follow:

IMPORTANT SERVICE SAFETY PRECAUTION

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 nonisolated (hot) ground system is for the B+ voltage regulator circuit and the horizontal output circuit. The isolated ground system is for the low B+ 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.

CAUTION: FOR CONTINUED PROTECTION AGAINST A RISK OF FIRE, REPLACE

5A 125V

ONLY WITH SAME TYPE 5A125V FUSE.

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 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.

X-RADIATION AND HIGH VOLTAGE LIMITS

1. Be sure all service personnel are aware of the procedures and instructions covering X-radiation. The only potential source of X-ray in current solid state TV receivers is the picture tube. 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 Xradiation 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. High voltage should always be kept at 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. When the high voltage regulator is operating properly there is no possibility of an X-radiation problem. 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 not exceed the specified value and that it is regulating correctly .

5. Do not use a picture tube other than that specified or make unrecommended circuit modifications to the high voltage circuitry.

6. When trouble shooting and taking test measurements on a receiver with excessive high voltage, avoid being unnecessarily close to the receiver. Do not operate the receiver longer than is necessary to locate the cause of excessive voltage.

IMPORTANT SERVICE SAFETY PRECAUTION

(Continued)

32K-X2000 CK32S60 36K-X2000 CK36S60

BEFORE RETURNING THE RECEIVER (Fire & Shock Hazard)

Before returning the receiver to the user, perform the following safety checks.

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 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.

• Use an AC voltmeter having with 5000 ohm per volt, or higher, sensitivity to measure the AC voltage drop across the resistor.

• 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 nonpolarized adapter plug must be used only for the purpose of completing these check.) Any current measured must not exceed 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.

1.5k ohm 10W

0.15µF

TEST PROBE

TO EXPOSED

METAL PARTS

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CONNECT TO KNOWN EARTH GROUND

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 necessarily increased by using replacement components 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

Schematic Diagrams

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Replacement Parts Lists

and

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.

32K-X2000 CK32S60 36K-X2000 CK36S60

PRECA UTIONS 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 masse isolée est pour les tensions DC B+ basses et le circuit secondaire 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.

PRECAUTION: POUR LA PROTECTION CONTINUE CONTRE LES RISQUES

5A 125V

D'INCENDIE, REMPLACER LE FUSIBLE PAR UN FUSIBLE DE MEME TYPE 5A-125V.

REPARATION DU SYSTEME A HAUTE TENSION ET DU TUBE-IMAGE

Lors de la réparation de ce systéme, supprimer la charge statique en branchant une résistance de 10 kΩ en série avec un fil isolé (comme une sonde d'essai) entre la mise à la terre du tubeimage 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. Ne manipuler le 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 rayons mesurables si la haute tension est maintenue à un niveau préconisé dans la section "Vérification de la haute tension". C'est seulement quand la haute tension est 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 voltmètre à haute tension qui doit être 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. Ne pas utiliser un tube-image autre que 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.

32K-X2000 CK32S60

36K-X2000 CK36S60

PRECAUTIONS A PRENDRE LORS DE LA REPARATION

(Suite)

VERIFICATIONS CONTRE L'INCEN-DIE ET LE CHOC ELECTRIQUE

Av ant de rendre le récepteur à l'utilisateur, effectuer les vérifications suivantes.

1. Inspecter tous les faisceaux de câbles pour s'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 dos du coffret, les couvercles ou 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:

• Brancher le cordon d'alimentation directem-ent à une prise de courant de 120V. (Ne pas utiliser de transformateur d'isolation pour cet essai).

• A l'aide de deux fils à pinces, brancher une résistance de 1,5 kΩ 10 watts en parallèle avec un condensateur de 0,15µF en série avec toutes les pièces métalliques 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/V pour mesurer la chute de tension en travers de la résistance.

• Toucher avec la sonde d'essai les pièces 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. (Si nécessaire, une prise 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.

V oltmètre CA

1.5k ohm 10W

0.15µF

SONDE D'ESSAI

TEST PROBE

AUX PIECES

TO EXPOSED

METALLIQUES METAL PARTS

EXPOSEES

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BRANCHER A UNE

CONNECT TO

TERRE CONNUE

KNOWN EARTH GROUND

AVIS POUR LA SECURITE

De nombreuses pièces, électriques et mécaniques, dans les téléviseurs présentent des caractéristiques spéciales relatives à la sécurité, qui ne sont 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

234567890123456789012345678901212345678901234567890123456789012123456789012345678901234567890121

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.

32K-X2000 CK32S60 36K-X2000 CK36S60

LOCATION OF USER'S CONTROL

32K-X2000 CK32S60 36K-X2000 CK36S60

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.

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 11.8 ±0.7V.

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 VOLT A GE 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 line voltage, with a strong air signal or 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. The voltage should be approximately, 32.8kV(32KX2000,CK32S60),33.4kV(36K-X2000,CK36S60).

(at zero beam)

If a correct reading cannot be obtained, check circuitry for malfunctioning components. After the voltage test, make Y-mute off to the normal mode.

32K-X2000 CK32S60 36K-X2000 CK36S60

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-B" to determine, if service 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 Chdown button on the remote controller or at the set. The service adjustment number will vary in increments of one, from "S01" to "G06". Select the item you wish to adjust.

3. Data Number Selection

Press the Vol-up or down button to adjust the data number.

SERVICE ADJUSTMENT NUMBER

S01 55 2

To enter the service mode and exit service 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.

DA TA NUMBER

CHANNEL



ANT-B

Figure A.

S01 D:00

32K-X2000 CK32S60 36K-X2000 CK36S60

» To call up the service mode, hold down the CH UP and VOL UP keys of the unit at once and plug the AC power

cord into a wall outlet. The unit switches on and comes in the service mode.

» Now hold down both the CH UP and CH DOWN keys of the unit for 2 seconds or longer. the above default values

are written in the EEPROM.

SERVICE

No.

S01 PICTURE HEIGHT 00-127 71 RF signal input (TUNER-B)

S02 V-LINEARITY 00-31 27 " " S03 V-∫ CORRECTION 00-63 40 40/37 " " S04 PICTURE WIDTH 00-63 50 " " S05 E-W PARABOLA 00-63 15 " " S06 E-W CORNER 00-31 13 " " S07 TRAPEZIUM 00-127 65 " " S08 AGC SW 00-01 1 01 " " S09 S10 TINT 00-63 20 " " S11 COLOR (SUB COLOR) 00-31 13 " " S12 BRIGHT (BRIGHTNESS) 00-101 58 " " S13 SHARP (SHARPNESS) 00-27 5 05/00 " " S14 V-POSITION 00-07 0 00 " " S15 H-POSITION 00-31 17 " " S16 R CUT-OFF 00-255 64 " " S17 G CUT-OFF 00-255 64 " " S18 B CUT-OFF 00-255 64 " " S19 G (R) DRIVE 00-127 64 " " S20 B DRIVE 00-127 64 " " S21 Y-MUTE/V-OFF 00-02 0 " S22 Y-γ CURVE 00-03 0 03 " VCJ IC (IC401) adjusted S23 VSM PHASE 00-03 1 02 " " S24 APACON PEAK f0 00-07 1 01 " " S25 DC RESTORATION RATE 00-63 21 21 " " S26 DC RESTORATION LIMIT 00-03 0 00 " " S27 BLACK STRETCH POINT 00-07 3 03 " " S28 APL VS BPS 00-03 1 01 " " S29 B.L.C. 00-01 1 01 " " S30 DYNAMIC ABL POINT 00-07 4 04 " " S31 DYNAMIC ABL GAIN 00-07 4 04 " " S32 ABL POINT 00-07 3 03 " " S33 ABL GAIN 00-07 3 03 " " S34 Y-DL 00-01 1 00 " " S35 TOF-f0 00-07 4 07 " " S36 TOF-Q 00-07 4 04 " " S37 VSM GAIN 00-03 1 01 " " S38 OSD SL 00-01 0 00 " " S39 C-DECODE 00-255 105 161 " " S40 OSD POSITION 00-15 11 " C. C. display positioning M01 INPUT LEVEL (ATT) 00-15 7 " MTS IC (IC3001) adjusted M02 MTS VCO 00-63 37 " " M03 FILTER 00-63 30 " " M04 WIDE BAND 00-63 17 " " M05 SPECTRAL 00-63 22 " " M06 MTS DATA READ 00-1 0 Note1 " Factory-adjusted only

ADJUSTMENT ITEM INPUT CONDITIONS

PICTURE (SUB CONTRAST)

VARIABLE

00-31 28 " "

DA TA

RANGE

INITIAL

FiXED

VALUE

CONTROL DESTINATION

Deflection processor IC (IC502) adjusted

(or EXT. Video input)

00:NORMAL, 01:Y-mute, 03:Hoizontal Y-mute

00/00 is depended on picture size.

Left value : 32K-X2000, CK32S60 Right value : 36K-X2000, CK36S60

Table - A

32K-X2000 CK32S60 36K-X2000 CK36S60

SERVICE

No.

P01 P02 PIP TINT (TINT) 00-63 41 37 " P03 P04 Y-OFFSET (Y_OFFSET) 00-31 9 09 " " P05 PIP H-POSI (HXA) 00-255 9 10 " " P06 BGP (HADJ) 00-15 0 00 " " P07 C01 C02 TINT-C 00-63 20 14 " " C03 COLOR-C (SUB COLOR) 00-63 13 8 " " C04 C05 SHARP-C (SHARPNESS) 00-27 5 05/00 " " C06 V-POSITION-C 00-07 0 00 " " C07 H-POSITION-C 00-31 19 " " C08 R CUT-OFF-C 00-255 64 " " C09 G CUT-OFF-C 00-255 64 " " C10 B CUT-OFF-C 00-255 64 " " C11 G (R) DRIVE-C 00-127 64 " " C12 B DRIVE-C 00-127 64 " " C13 VSM GAIN-C 00-03 2 02 " " A01 PICTURE-2 00-31 28 RF signal input (TUNER-A) " A02 TINT-2 00-63 20 " " A03 INPUT LEVEL-2 00-15 7 " MTS IC (IC3001) adjusted A04 WIDE BAND-2 00-63 17 " " A05 SPECTRAL-2 00-63 22 " " G01 TVGP+ OSD H-POS1 16-56 30 RF signal input G02 TVGP+ PIP H X A 00-255 22 RF signal input (Tuner-A. B) G03 TVGP+ PIP V X A 00-255 6 " G04 TVGP+ PICTURE HEIGHT 00-10 0 02 " G05 TVGP+ VD 43-124 94 94/95 " G06 TVGP+ CHECK 43-124 1 01 "

ADJUSTMENT ITEM INPUT CONDITIONS

PIP Y -LEVEL (CONTRAST)

PIP COLOR (COLOR_SAT)

FREE RUN (FREE_RUN_ADJ) PICTURE-C (SUB CONTRAST)

BRIGHT-C (BRIGHTNESS)

VARIABLE

00-127 43 " P-IN-P adjusted

00-127 55 RF signal input (TUNER-B) "

00-15 11 11 " " 00-31 28 17 Compornent signal input VCJ IC (IC401) adjusted

00-101 58 " "

DA TA

RANGE

INITIAL

FiXED

VALUE

CONTROL DESTINATION

00/00 is depended on picture size.

Left value : 32K-X2000, CK32S60 Right value : 36K-X2000, CK36S60

Note : This item is used only at the manufacturing factory.

Do not change the data. (If this setting is changed to "1", the adjustment data may get wrong.)

Table - A

SERVICE ADJUSTMENT

32K-X2000 CK32S60 36K-X2000 CK36S60

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) Y ou may skip this step, if you selected a B/W picture or monoscope pattern.

3. Select the service No. "S21" and adjust the data value 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" blue to obtain a good grey scale with normal 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. "S1 1" and set to "00" (minimum color)(Record original data code under adjustment "S1 1" 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. Select the service No. "S1 1" and adjust data to 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.

5. Receive the same local channel through the antenna A.

6. Adjust the "A01" setting to achieve the same contrast as that with the antenna B.

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.

5. Receive the same local channel through the antenna A.

6. Adjust the "A02" setting to achieve the same tint as that with the antenna B.

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.

5. Enter the same data value as the "S12" setting to "C04".

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.

32K-X2000 CK32S60 36K-X2000 CK36S60

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.

Side Pincushion Adjustment

1. Receive a good CATV channel or crosshatch 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. Receive a good CATV channel or crosshatch 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. Receive a good CATV channel or crosshatch 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. Receive a good CATV channel or crosshatch pattern signal.

2. Set to standard setting mode.

3. Enter the service mode and select the service No. "S07".

4. Adjust so that the leftmost and rightmost vertical lines are parallel to each other.

Corner Distortion Adjustment

1. Receive a good CATV channel or crosshatch 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. A black 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 "05" (32K-X2000/CK32S60) "00"(36K-X2000/CK36S60).(center of data range)

Figure B.

32K-X2000 CK32S60 36K-X2000 CK36S60

MTS 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"(Antenna B) and "A03"(Antenna A).

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. Connect the frequency counter to 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"(Antenna B).

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"(Antenna B).

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.

9. Enter the service mode and select the service No."A04"(Antenna A).

10.Adjust the data until the AC voltage reading of the rms voltmeter is minimum.

11.Receive the following composite stereo signal 2. Stereo signal: 30% modulation, left channel only, noise reduction on, 3kHz

12.Enter the service mode and select the service No."A05"(Antenna A).

13.Adjust the data until the AC voltage reading of the rms voltmeter is minimum.

14.T ake the above steps 9 to 13 again for fine adjustment.

P-IN-P 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 "37".

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".

32K-X2000 CK32S60 36K-X2000 CK36S60

GUIDE Plus+ Adjustment

1. Bus Data Setting

1) Picture Height Adjustment

•Enter the Service Mode and select Service Adjustment "G04"

•Match the value of the data to "02"

2) VD Adjustment

•Enter the Service Mode and select Service Adjustment "G05"

•Match the value of the data to "94" (32K-X2000, CK32S60) and "95" (36K-X2000, CK36S60).

2. OSD H-position Adjustment

•Input a good channel into Antenna B and another into Antenna A.

•Enter the Service Mode and select Service Adjustment "G01".

•GUIDE PLUS+ OSD is displayed on the screen.

•Enable adjustment of the "G01" data bus and adjust so that GUIDE PLUS+ OSD is centered on the screen.

3. GUIDE Plus+ PIP Position Adjustment

1) H-position Adjustment

•Input a good channel into Antenna B and another into Antenna A.

•Enter the Service Mode and select Service Adjustment "G02"

•GUIDE PLUS+ OSD is displayed on the screen.

•Enable adjustment of the "G02" data bus and adjust so that the horizontal position of GUIDE PLUS+ PIP is centered in the display frame of the screen.

2) V-position Adjustment

•Input a good channel into Antenna B and another into Antenna A.

•Enter the Service Mode and select Service Adjustment "G03"

•GUIDE PLUS+ OSD is displayed on the screen.

•Enable adjustment of the "G03" data bus and adjust so that the vertical position of GUIDE PLUS+ PIP is centered in the display frame of the screen.

4. GUIDE Plus+ Data Check and Preload Operation Check

It is necessary to perform these checks when replacing the microcontroller (IC2001), the GUIDE Plus+ unit (DUNTK9581WEK0), or the unit component IC (IC2101, 2102, 2103). When performing a data check, be sure to connect signals with the GUIDE Plus+ data overlapped to Antenna A.

1) ROM and RAM Test

•Input a good channel into Antenna A and another into Antenna B.

•Enter the Service Mode and select Service Adjustment "G06".

•TV GUIDE+ data check will start automatically.

•Confirm that "ROM TEST" and "RAM TEST" are displayed as "Passed 100%". Change the "G03" data bus and adjust so that the horizontal position of GUIDE PLUS+ PIP is centered in the display frame of the screen.

2) IR Operation Confirmation Connect the IR MOUSE as shown in the illustration below.

Confirm the IR operation in the order listed below.

32K-X2000 CK32S60 36K-X2000 CK36S60

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