tatung tvc565 tv vcr sm

8/10/2019 Tatung Tvc565 Tv Vcr Sm

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TATUNG TVC565

Recommended Safety Parts

Item Part No. Description

M101 1596S98001 MOTOR (LOADING) MDB2B66

M2001 1510S98036 CAPSTAN DD UNIT F2QVB08M2003 1589S11014 MICROMOTOR 12OAL03

UN4001 A4E601B500 GYLINDER UNIT ASSY A4E601B500

R501 R5X2CD2R2J R, CEMENT 2.2 OHM 5W

R505 R63581R22J R, FUSE 0.22 OHM 1W

R538 R034K2155J RC 1.5M OHM 1/2W

R542 R3X181R22J R, METALOXIDE 0.22 OHM 1W

R543 R635U4681J R,FUSE 680 OHM 114W

R802 R3X181153J R, METAL OXIDE 15K OHM 1W



C505 P24728224M CMP 0.22 UF 275V PHE840

C506 P2472B104M CMP 0.1 UF 275V PHE840

C510 E02LU4101M CE 100 UF 35V

C529 CB3930MH3M CC 0.0022 UF 250V

C530 CB3930M13M CC 0.001 UF 250V

D501 D2WTRM11C0 DIODE SILICON RM11C-EIC




IC502 I2BTG66530 IC STR-G6653

IC506 0002E00610 PHOTO COUPLER LTV-817M-VB

Q804 TCA0042170 TRANSISTOR SILICON KTC4217(O,Y)



L501 029T0000A1 COIL, LINE FILTER 0R7A223F24 or

029K000001 COIL, LINE FILTER RB-20871

L502 029T000092 COIL, LINE FILTER 1R0A103F24

L503 028R140018 COIL DEGAUSS 8R140018 or

028F140018 COIL DEGAUSS 8F140018

T501 0481290794 TRANSFORMER, SWITCH 81290794

J351 060G131014 RCA JACK HTJ-035-28A

J801 066X120014 SOCKET, CRT HPS3200-010501

SW501 0530205017 SWITCH SDKVA30200 or

0530205001 SWITCH PLUS SDDFC30200

CD501 1206439801 CORD AC BUSH 6439801

F501 080NT04003 FUSE 50T040HCC

TH501 D8E080B100 DEGAUSS ELEMENT B59104-T80-B10

TU601 0144R07028 TUNER, UHF UE25-B59D

V801 098Q1404B6 CRT W/DY A34AGT13*07(L)

DISASSEMBLY INSTRUCTIONS

1. REMOVAL OF MECHANICAL PARTS ANDP.C. BOARDS

1-1: BACK CABINET (Refer to Fig. 1-1)

1. Remove the 6 screws (1).2. Remove the AC cord from the AC cord hook

(2).3. Remove the Back Cabinet in the direction of

arrow.

1-2: CRT PCB (Refer to Fig. 1-2)

CAUTION: BEFORE REMOVING THE ANODECAP, DISCHARGE ELECTRICITY BECAUSE ITCONTAINS HIGH VOLTAGE. BEFORE AT-TEMPTING TO REMOVE ORREPAIR ANY PCB, UNPLUG THE POWERCORD FROM THE AC SOURCE.

1. Remove the Anode Cap.(Refer to REMOVAL OF ANODE CAP)2. Remove the CRT PCB in the direction of arrow.

1-3: TV/VCR BLOCK (Refer to Fig. 1-3)

1. Remove the 2 screws 11.2. Disconnect the following connectors:(CP351, CP757, CP401, CP501 and CP502).3. Unlock the support (2)4. Remove the TV/VCR Block in the direction of

arrow.

1-4: POWER PCB (Refer to Fig. 1-4)

1. Remove the 3 screws 12. Disconnect the following connectors:(CP401A and CP851A).3. Remove the Power PCB in the direction of

arrow.

1-5: DECK SHIELD PLATE (Refer to Fig. 1-5)

1. Remove the 2 screws (1)2. Remove the Deck Shield Plate in the direction

of arrow (A).3. Remove the screw (2).4. Remove the Bottom Shield Plate in the

direction of arrow (B).

1-6: DECK CHASSIS (Refer to Fig. 1-6)

1. Remove the screw (1)2. Remove the Cover Light Plate in the direction

of arrow (A).3. Remove the 3 screws (2).4. Disconnect the following connectors: (CP1001, CP4001, CP4004 and CP4005).5. Remove the Deck Chassis in the direction of

arrow (B).

1-7: JACK PLATE AND SYSCON PCB(Refer to Fig. 1-7)

1. Remove the screw (1).2. Remove the 2 screws (2).3. Remove the Syscon PCB in the direction of

arrow.

2. REMOVAL OF DECK PARTS

2-1: TOP BRACKET (Refer to Fig. 2-1)

1. Extend the 2 supports (1)

2. Slide the 2 supports (2) and remove the TopBracket.

NOTE1. After the installation of the Top Bracket, bend

the support (1) so that the Top Bracket is fixed.

2-2: CASSETTE HOLDER ASSY(Refer to Fig. 2-2)

1. Move the Cassette Holder Assy to the frontside.

2. Push the Locker R to remove the CassetteSide R.

3. Remove the Cassette Side L.

2-3: CASSETTE SIDE L/R (Refer to Fig. 2-3-A)

1. Remove the Locker Spring.2. Unlock the 4 supports (1) and then remove the

Cassette Side L/R.3. Unlock the support (2) and then remove the

Locker R.

NOTE1. In case of the Locker R installation, check if the

two positions of Fig.2-3-B are correctly locked.2. When you install the Cassette Side R, be sure

to move the Locker R after installing.

2-4: LINK UNIT (Refer to Fig. 2-4)

1. Set the Link Unit to the Eject position.2. Unlock the support (1).3. Remove the (A) side of the Link Unit first, then

remove the (B) side.

General Information

Also CoversTVC565S

2-5: LINK LEVER/FLAP LEVER(Refer to Fig. 2-5)

1. Remove the Link Lever.2. Remove the Flap Lever.

2-6: LOADING MOTOR/WORM (Refer to Fig.2-6-A)

1. Remove the screw (1).2. Remove the Loading Motor.3. Remove the Worm.

NOTE1. In case of the Worm installation, check if the

value of the Fig. 2-6-B is correct.

2-7: TENSION ASSY (Refer to Fig. 2-7-B)

1. Turn the Pinch Roller Cam clockwise so thatthe Tension Holder hook is set to theposition of Fig. 2-7-A to move the TensionArm Assy.

2. Remove the Tension Spring.3. Unlock the 2 supports (1) and remove the

Tension Band.4. Unlock the support (2) and remove theTension Arm Assy.

5. Unlock the support (3) and remove theTension Connect.

6. Float the hook (4) and turn it clockwise thenremove the Tension Holder.


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TATUNG TVC565

NOTE1. In case of the Tension Band installation,

note the direction of the installation. (Referto Fig. 2-7-C)

2. In case of the Tension Band installation,install correctly as Fig. 2-7-D.

3. In case of the Tension Connect installation,install as the circled section of Fig. 2-7-E.

2-8: T BRAKE ARM/T BRAKE BAND (Referto Fig. 2-8-A)

1. Remove the T Brake Spring.2. Turn the T Brake Arm clockwise and bend

the hook section to remove it.3. Unlock the 2 supports (1) and remove the T

Brake Band.

NOTE1. In case of the T Brake Band installation,

install correctly as Fig. 2-8-B.

2-9: 5 REEL/T R EEL/IDLER ARM ASSY/IDLERGEAR (Refer to Fig. 2-9-A)

1. Remove the S Reel and T Reel.2. Remove the 2 Polyslider Washers (1).3. Remove the Idler Arm Assy and Idler Gear.

NOTE

1. Take care not to damage the gears of the SReel and T Reel.2. The Polyslider Washer may be remained on the

back of the reel.3. Take care not to damage the shaft.4. Do not touch the section A of S Reel and T

Reel. (Use gloves.) (Refer to Fig. 2-9-A) Do notadhere the stains on it.

5. When you install the reel, clean the shaft andgrease it (MG-33). (If you do not grease, noisemay be heard in FF/REW mode.)

6 After installing the reel, adjust the height of thereel. (Refer to MECHANICAL ADJUSTMENT)

NOTE1. In case of the S Reel and T Reel installation,

check if the correct parts are installed. (Refer toFig. 2-9-B)

2. In case of the Idler Arm Assy installation, installcorrectly as Fig. 2-9-C.

2-10: CASSETTE OPENER / PINCH ROLLERBLOCK/ P5 ARM ASSY(Refer to Fig. 2-10-A)

1. Unlock the support (1) and remove theCassette Opener.

2. Remove the Pinch Roller Block and P5 ArmAssy.

NOTE1. Do not touch the Pinch Roller. (Use gloves.)2. In case of the Pinch Roller Block and the Pinch

Roller Cam installation, install correctly as Fig.2-10-B.

2-11: A/C HEAD (Refer to Fig. 2-11-A)

1. Remove the screw (1)

2. Remove the A/C Head Base.3. Remove the 3 screws (2).4. Remove the A/C Head and A/C Head Spring.

NOTE1. Do not touch the A/C Head. (Use gloves.)2. When you install the A/C Head Spring, install

as shown in Fig. 2-11-B.3. When you install the A/C Head, tighten the

screw (1) first, then tighten the screw (2), finallytighten the screw (3).

2-12: FE HEAD (RECORDER ONLY)(Refer to Fig. 2-12)

1. Remove the screw (1)2. Remove the FE Head.

2-13: AHC ASSY/CYLINDER UNIT ASSY(Refer to Fig. 2-13)

1. Disconnect the following connector: (CD2001)2. Remove the 3 screws (1).3. Remove the Cylinder Unit Assy.

NOTE1. When you install the Cylinder Unit Assy, tighten

the screws from (1) to (3) in order while pullingthe Assy toward the left front direction.

2-14: CAPSTAN DD UNIT (Refer to Fig. 2-14)

1. Remove the Capstan Belt.2. Remove the 3 screws (1).3. Remove the Capstan DD Unit.

2-15: MAIN CAM/PINCH ROLLER CAM/JOINTGEAR (Refer to Fig. 2-15-A)

1. Remove the E-Ring (1), then remove the MainCam.

2. Remove the E-Ring (2), then remove the PinchRoller Cam and Joint Gear.

NOTE1. In case of the Pinch Roller Cam and Main Cam

installation, install them as the circled section ofFig. 2-15-B so that the each markers are met.(Refer to Fig. 2-15-B)

2-16: LOADING GEAR S/T UNIT(Refer to Fig. 2-16-A)

1. Remove the E-Ring (1) and remove the MainLoading Gear.

2. Remove the Main Rod, Tension Lever, LoadingArm S Unit and Loading Arm T Unit.

NOTE1. When you install the Loading Arm S Unit,

Loading Arm T Unit and Main Loading Gear,align each marker. (Refer to Fig. 2-16-B)

2-17: CLUTCH ASSY/RING SPRING/CLUTCH

LEVER/ CLUTCH GEAR (Refer to Fig. 2-17-A)

1. Remove the Polyslider Washer Ki_2. Remove the Clutch Assy and Ring Spring .3. Remove the Clutch Lever.4. Remove the Coupling Gear, Coupling Spring

and Clutch Gear.

NOTE1. In case of the Clutch Assy installation,

install it with inserting the spring of theClutch Assy into the dent of the CouplingGear. (Refer to Fig. 2-17-B)

2-18: CASSETTE GUIDE POST/INCLINEDBASE S/T UNIT/P4 CAP(Refer to Fig. 2-18-A)

1. Remove the P4 Cap.2. Unlock the support (1) and remove the

Cassette Guide Post.3. Remove the Inclined Base S Unit andInclined Base T Unit.

NOTE1. Do not touch the roller of Guide Roller.2. In case of the P4 Cap installation, install it

with parallel for A and B of Fig. 2-18-B.3. In case of the Cassette Guide Post

installation, install correctly as the circledsection of Fig. 2-18-C.


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TATUNG TVC565

SERVICE MODE LISTThis unit provided with the following SERVICEMODES so you can repair examine and adjust

easily.

To enter SERVICE MODE, Unplug AC cord tilllost actual clock time. Then press and hold Vol(-) button of main unit and remocon key formore than 2 seconds.

The both pressing of set key and remotecontrol key will not be possible if clock hasbeen set. To reset clock, either unplu g AC cordand allow at least 30 minutes before Power Onor alternatively, discharge backup capacitor.

SERVICE MODE LIST TABLE- See TatungTVC 563

PREVENTIVE CHECKS AND SERVICEINTERVALSThe following standard table depends onenvironmental conditions and usage. Unlessmaintenance is properly carried out, thefollowing service intervals may be quiteshortened as harmful effects may be had on

other parts. Also, long term storage or misusemay cause transformation and aging of rubberparts.

CONFIRMATION OF HOURS USEDPOWER ON total hours and PLAY/REC totalhours can be checked on the screen. Totalhours are displayed in 16 system of notation.

NOTE:The confirmation of using hours will notbe possible if clock has been set. To resetclock, either unplug AC cord and allow at least30 minutes before Power On or alternatively,discharge backup capacitor.

1. Set the VOLUME to minimum.2. Press both VOL. DOWN button on the setand the Channel button (6) on the remotecontrol for more than 2 seconds.3. After the confirmation of using hours, turn offthe power.

(16 x 16 x 16 x thousands digit value) + (16 x 16 xhundreds digit value) + (16 x tens digit value) +(ones digit value)

PREVENTIVE CHECKS AND SERVICEINTERVALS

CLEANING

NOTEAfter cleaning the heads with isopropyl alcohol,

do not run a tape until the heads dry completely. Ifthe heads are not completely dry and alcohol getson the tape, damage may occur.

1. AUDIO CONTROL HEADClean the Audio Control Head with the cottonstick soaked by alcohol. Clean the full erase headin the same manner. (Refer to the figure below.)

WHEN REPLACING EEPROM (MEMORY) IC

If a service repair is undertaken where it has beenrequired to change the MEMORY IC, the followingsteps should be taken to ensure correct datasettings while making reference to TABLE 1.(See opposite)

NOTE:Initial Data setting will not be possible ifclock has been set. To reset clock, either unplugAC cord and allow at least 30 minutes beforePower On or alternatively, discharge backupcapacitor.

1. Enter DATA SET mode by setting VOLUME tominimum.

2. While holding down VOLUME button on frontcabinet, press key 6 on remote control for morethan 2 seconds. ADDRESS and DATA shouldappear as FIG 1.

3. ADDRESS is now selected and should blink.Using the PLAY or STOP button on the remote,step through the ADDRESS until requiredADDRESS to be changed is reached.

4. Press ENTER to select DATA. When DATA isselected, it will blink.

5 Again, step through the DATA using PLAY orSTOP button until required DATA value hasbeen selected.

6. Pressing ENTER will take you b ack to AD-DRESS for further selection if necessary.

7. Repeat steps 3 to 6 until all data has beenchecked.

8. When satisfied correct DATA has been entered,turn POWER off (return to STANDBY MODE) tofinish DATA input.

The unit will now have the correct DATA for thenew MEMORY IC.

SERVICING FIXTURES AND TOOLS- See bookmarks section

PREPARATION FOR SERVICING- See bookmarks section

MECHANICAL ADJUSTMENTS

1. CONFIRMATION AND ADJUSTMENTRead the following NOTES before starting work. Place an object which weighs between

450g~500g on the Cassette Tape to keep itsteady when you want to make the tape runwithout the Cassette Holder. (Do not place anobject which weighs over 500g.)

When you activate the deck without theCassette Holder, short circuit between TP1001and TP1002. ( Refer to ELECTRICAL ADJUST-MENT PARTS LOCATION GUIDE) In thiscondition the BOT/EOT/Reel Sensor will notfunction.

1-1: CONFIRMATION AND ADJUSTMENT OFREEL DISK HEIGHT

1. Turn on the power and set to the STOP mode.2. Set the master plane (JG022) and reel disk

height adjustment jig (JG024A) on the mecha-nism framework, taking care not to scratch thedrum, as shown in Fig. 1-1-A.

3. Confirm that A of the reel disk is lower than Bof the reel disk height adjustment jig (JG024A) ,and is higher than C. If it is not enough height,adjust to 1 0(+0.2, -0) mm with the heightadjustment washer.

4. Adjust the other reel in the same way.

1-2: CONFIRMATION AND ADJUSTMENT OFTENSION POST POSITION

1. Set to the PLAY mode.2. Adjust the Tension Adjust until the edge of the

Tension Arm is positioning within the standardline center of Main Chassis.

3. While turning the S Reel clockwise, confirmthat the edge of the Tension Arm is located inthe position described pr eviously.

1-3: CONFIRMATION OF PLAYBACK TORQUEAND BACK TENSION TORQUE DURINGPLAYBACK

1. Load a video tape (E-180) recorded in standardspeed mode. Set the unit to the PLAY mode.

2. Install the tentelometer as shown in Fig. 1-3.Confirm that the meter indicates 20 2gf in thebeginning of playback.

USING A CASSETTE TYPE TORQUE TAPE(JG100A)

1. After confirmation and adjustment of TensionPost position (Refer to item 1-2), load thecassette type torque tape (JG100A) and set tothe PLAY mode.

2. Confirm that the right meter of the torque tapeindicates 50~90gfcm during playback in SPmode.

3. Confirm that the left meter of the torque tapeindicates 25~40gfcm during playback in SPmode.

1-4: CONFIRMATION OF VSR TORQUE

1. Install the Torque Gauge (JG002F) and Adapter(JG002B) on the S Reel. Set to the PictureSearch (Rewind) mode. (Refer to Fig.1-4-B)

2. Then, confirm that it indicates120~180gfcm.

NOTEInstall the Torque Gauge on the reel diskfirmly. Press the REW button to turn the reeldisk.

1-5: CONFIRMATION OF REEL BRAKETORQUE(S Reel Brake) (Refer to Fig. 1-4-B)

1. Once set to the Fast Forward mode then setto the Stop mode. While, unplug the AC cordwhen the Pinch Roller Block is on theposition of Fig. 1-4-A.

2. Move the Idler Assy from the S Reel.

3. Install the Torque Gauge (JG002F) andAdapter (JG002B) on the S Reel. Turn theTorque Gauge (JG002F) clockwise.

4. Then, confirm that it indicates 60~100gfcm

(T Reel Brake) (Refer to Fig. 1-4-B)

1. Once set to the Fast Forward mode then setto the Stop mode. While, unplug the AC cordwhen the Pinch Roller Block is on theposition of Fig. 1-4-A.

2. Move the Idler Assy from the T Reel.3. Install the Torque Gauge (JG002E) and

Adapter (JG002B) on the T reel. Turn theTorque Gauge (JG002E) counterclockwise.

4. Then, confirm that it indicates 30~50gfcm.

NOTEIf the torque is out of the range, replace the

following parts.

Check item Replacement Part

1-4 I dl er A ss y / Clut ch A ss y

1 -5 S Re el sid e: S R ee l / Te ns ion Ba nd / Ten sio n

Connect / Tension Arm Assy

T Reel side: T Reel / T Brake Band / T Brake

Spring / T Brake Arm

2. CONFIRMATION AND ADJUSTMENT OFTAPE RUNNING MECHANISMTape Running Mechanism is adjusted pre-cisely at the factory. Adjustment is notnecessary as usual. When you replace theparts of the tape running mechanism becauseof long term usage or failure, the confirmationand adjustment are n ecessary.

2. TAPE RUNNING SYSTEMWhen cleaning the tape transport system, use thegauze moistened with isopropyl alcohol.

3. CYLINDERWrap a piece of chamois around your finger. Dip itin isopropyl alcohol. Hold it to the cylinder headsoftly. Turn the cylinder head counterclockwise toclean it (in the direction of the arrow). (Refer tothe figure below.)

NOTEDo not exert force against the cylinder head. Donot move the chamois upward or downward onthe head. Use the chamois one by one.


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TATUNG TVC5652-1: GUIDE ROLLER

1. Playback the VHS Alignment Tape (JG001Cor JG001E). (Refer to SERVICING FIX-TURE AND TOOLS)

2. Connect CH-1 of the oscilloscope toTP4002 (Envelope) and CH-2 to TP4001(SW Pulse).

3. Press and hold the Tracking-Auto button onthe remote control more than 2 seconds toset tracking to center.

4. Trigger with SW Pulse and observe theenvelope. (Refer to Fig. 2-1-A)

5. When observing the envelope, adjust theAdjusting Driver (JG005) slightly until theenvelope will be flat. Even if you press theTracking Button, adjust so that flatness is

not moved so much.6. Adjust so that the A : B ratio is better than

3: 2 as shown in Fig. 2-1-B, even if youpress the Tracking Button to move theenvelope (The envelope waveform will beginto decrease when you press the TrackingButton).

7. Adjust the PG shifter during playback.(Refer to the ELECTRICAL ADJUST-MENTS)

NOTEAfter adjustment, confirm and adjust A/C head.(Refer to item 2-2)

2-2: CONFIRMATION AND ADJUSTMENT OFAUDIO / CONTROL HEAD

When the Tape Running Mechanism does notwork well, adjust the following items.

1. Playback the VHS Alignment Tape (JG001Cor JG001E). (Refer to SERVICING FIX-TURE AND TOOLS)

2. Confirm that the reflected picture of stampmark is appeared on the tape prior to P4Post as shown in Fig. 2-2-A.

a) When the reflected picture is distorted, turnthe screw (1). clockwise until the distortion isdisappeared.

b) When the reflected picture is not distorted,turn the screw counterclockwise until littledistortion is appeared, then adjust the a).

3. Turn the screw (2) to set the audio level tomaximum.

4. Confirm that the bottom of the Audio/Control Head and the bottom of the tape isshown in Fig. 2-2-C.

c) When the height is not correct, turn thescrew (3), to adjust the height. Then, adjustthe 1-3 again.

2-3: TAPE RUNNING ADJUSTMENT (X VALUEADJUSTMENT)

1. Confirm and adjust the height of the Reel Disk.(Refer to item 1-1)

2. Confirm and adjust the position of the Tension

Post. (Refer to item 1-2)3. Adjust the Guide Roller. (Refer to item 2-1)4. Confirm and adjust the Audio/Control Head.

(Refer to item 2-2)5. Connect CH-1 of the oscilloscope to TP4001,

CH-2 to TP4002 and CH-3 to HOT side ofAudio Out Jack.

6. Playback the VHS Alignment Tape (JG001U orJG001V). (Refer to SERVICING FIXTURE ANDTOOLS)

7. Press and hold the Tracking-Auto button on theremote control more than 2 seconds to settracking to center.

8. Set the X Value adjustment driver (JG153) tothe A

2of Fig. 2-2-B. Adjust X value so that the

envelope waveform output becomes maximum.Check if the relation between Audio andEnvelope waveform becomes (1) or (2) of Fig.2-3.

2-4: CONFIRM HI-Fl AUDIO (Hi-Fi model only)

1. Connect CH-1 of the oscilloscope to TP4002and CH-2 to the Hi-Fi Audio Out Jack.

2. Playback the VHS Alignment Tape (JG001R).(Refer to SERVICING FIXTURE AND TOOLS)


4. Press the Tracking Up button and countnumber of steps which the audio output ischanged from Hi-Fi (10KHz) to MONO (6KHz).


6. Press the Tracking Down button and count

number of steps which the audio output ischanged from Hi-Fi (10KHz) to MONO (6KHz).

7. If the difference are more than 3 steps, set theX Value adjustment driver (JG153) to (4) of Fig.2-2-B. Change the X Value and adjust it so thatthe value becomes within 2 steps.

3. MECHANISM ADJUSTMENT PARTS LOCA-TION GUIDE (See opposite)

1. Tension Connect2. Tension Arm3. Guide Roller4. Audio/Control Head5. X value adjustment driver hole6. P4 Post7. T Brake Spring

8. T Reel9. S Reel10.Adjusting parts for the Tension Arm position

1. ADJUSTMENT PROCEDURERead and perform these adjustments whenrepairing the circuits or replacing electrical partsor PCB assemblies.

CAUTIONWhen replacing ICs or transistors, use onlyspecified silicon grease (YG6260M).(To prevent the damage to ICs and transistors.)

On-Screen Display Adjustment

1. Unplug the AC plug for more than 30 minutesto set the clock to the non-setting state. (Torelease the Back-Up immediately, take theshort circuit between C1003 and GND at thePower Off.) Then, set the volume level tominimum.

2. Press the VOL. DOWN button on the set and

the channel button (9) on the remote control formore than 2 seconds to display adjustmentmode on the screen as shown in Fig. 1-1

3. Use the Channel UP/DOWN button or Channelbutton (0-9) on the remote control to select theoptions shown in Fig. 1-2.

4. Press the MENU button on the remote controlto end the adjustments.

2. BASIC ADJUSTMENTS

(VCR SECTION)

2-1: PG SHIFTER

1. Connect CH-1 on the oscilloscope to TP4001and CH-2 to TP4201.

2. Playback the alignment tape. (JG001D)3. Press and hold the Tracking-Auto button on the

remote control more than 2 seconds to settracking to center.

4. Press the VOL. DOWN button on the set andthe channel button (3) on the remote controlsimultaneously until the indicator REC disap-pears. If the indicator REC disappears,adjustment is completed.

(If the above adjustments doesnt work well:)

5. Press the VOL. DOWN button on the set andthe channel button (3) on the remote controlsimultaneously until the indicator REC disap-pears.

6. When the REC indicator is blinking, press bothVOL. DOWN button on the set and the channelbutton (4) on the remote control simultaneouslyand adjust the Tracking +/- button until thearising to the down of Head Switching Pulsebecomes 6.5 0.5H. (Refer to Fig. 2-1-A, B)

7. Stop the alignment tape.

2-2: VCO

1. Place the set with Aging Test for more than 10minutes.

2. Connect the oscillator (39.5MHz) to TP601.3. Activate the adjustment mode display of Fig. 1-

1 and press the channel button (13) on theremote control to select VCO COARSE.

4. Press the VOL. UP/DOWN button on theremote control until the OK appear on thescreen. If the OK is not displayed, select the- side on the changed from + to -

5. Press the CH UP button once to set to VCOFINE mode.

6. Press the VOL. UP/DOWN button on theremote control to select the 5 step down pointfrom the upper limit on the OK. (Example: Incase of the OK point 30~41, select 36.)

2-3: RF AGC

1. Place the set with Aging Test for more than 15minutes.

2. Receive the UHF (63dB).3. Connect the digital voltmeter between the pin 5

of CP603 and the pin 1 (GND) of CP603.4. Activate the adjustment mode display of Fig. 1-

1 and press the channel button (01) on theremote control to select RF AGC.

5. Press the VOL. UP/DOWN button on theremote control until the digital voltmeter is 2.3

0.1V.

(TV SECTION)

2-4: CONSTANT VOLTAGE

1. Connect the digital voltmeter to TP501.2. Set condition is AV MODE without signal.3. Using the remote control, set the brightness

and contrast to normal position.4. Adjust the VR502 until the digital voltmeter is

133 0.5V.

2-5: FOCUS

1. Receive the monoscope pattern.2. Turn the Focus Volume fully counterclockwise

once.3. Adjust the Focus Volume until picture is

distinct.

2-6: HORIZONTAL POSITION

1. Receive the center cross signal from thePattern Generator.

2. Using the remote control, set the brightnessand contrast to normal position.

3. Activate the adjustment mode display ofFig. 1-1 and press the channel button (08)on the remote control to select H POSI (50).

4. Press the VOL. UP/DOWN button on theremote control until the right and left screensize of the vertical line becomes the same.

5. Receive the cross hatch signal of NTSC.(Audio Video Input)

6. Press the AV button on the remote controlto set to the AV mode. Then perform theabove adjustments 2~4.

2-7: VERITCAL POSITION

NOTE:Adjust after performing adjustments insection 2-6.

1. Receive the cross hatch signal from thePattern Generator.

2. Using the remote control set the brightnessand contrast to normal position.

3. Activate the adjustment mode display ofFig. 1-1 and press the channel button (09)on the remote control to select V POSI (50).

4. Check if the step No. V.POSI (50) is 5.5. Adjust the VR402 until the horizontal line

becomes fit to notch of the shadow mask.6. Receive the cross hatch signal of NTSC.

(Audio Video Input)7. Using the remote control, set the brightness

and contrast to normal position.8. Activate the adjustment mode display of

Fig. 1-1 and press the channel button (09)on the remote control to select V POSI (60).

9. Check if the step No. V.POSI (60) is 15.

2-8: VERTICAL LINEARITY




3. Adjust the VR401 until the SHIFT quantityof the OVER SCAN on upside anddownside becomes minimum.

2-9: VERTICAL SIZE



2. Using the remote control, set the brightness

and contrast to normal position.3. Activate the adjustment mode display ofFig. 1-1 and press the channel button (11)on the remote control to select V SIZE(50).

4. Press the VOL. UP/DOWN button on theremote control until the rectangle on thecenter of the screen becomes square.

5. Receive a broadcast and check if thepicture is normal.

6. Receive the cross hatch signal of NTSC.(Audio Video Input)

7. Press the AV button on the remote controlto set to the AV mode. Then perform theabove adjustments 2-4.

2-10: OSD HORIZONTAL


2. Activate the adjustment mode display ofFig. 1-1 and press the channel button (31)


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TATUNG TVC565on the remote control to select H POSOSD.

3. Press the VOL. UP/DOWN button on theremote control until the difference of A andB becomes minimum. (Refer to Fig. 2-2)

2-11: CUT OFF

1. Set condition is AV MODE without signal.2. Using the remote control, set the brightness

and contrast to normal position.3. Place the set with Aging Test for more than

15 minutes.4. Activate the adjustment mode display of

Fig. 1-1 and press the channel button (00)on the remote control to select CUT OFF.

5. Adjust the Screen Volume until a dim rasteris obtained.

2-12: WHITE BALANCE

NOTE:Adjust after performing CUT OFFadjustment.

1. Place the set with Aging Test for more than15 minutes.

2. Receive the white 100% signal from thePattern Generator.


4. Activate the adjustment mode display ofFig. 1-1 and press the channel button (03)on the remote control to select R DRIVE.

5. Using the VOL. UP/DOWN button on theremote control, adjust the R DRIVE.

6. Press the CH. UP/DOWN button on theremote control to select the R DRIVE, GDRIVE, M R CUTOFF or MG CUTOFF.

7. Using the VOL. UP/DOWN button on theremote control, adjust the R DRIVE, GDRIVE, M R CUTOFF or M G CUTOFF.

8. Perform the above adjustments 6 and 7until the white color is looked like a white.

2-13: BRIGHT CENT

1. Receive the PAL black pattern*. (RF Input)2. Using the remote control, set the brightness

and contrast to normal position.3. Activate the adjustment mode display of

Fig. 1-1 and press the channel button (17)on the remote control to select BRIGHTCENT.

4. Press the VOL. UP/DOWN button on the

remote control until the screen begin toshine.

5. Receive the PAL black pattern*. (AudioVideo Input)

6 Press the AV button on the remote control toset to the AV mode. Then perform the aboveadjustments 2-4.

The Black Pattern means the whole blackraster signal. Select the RASTER of thepattern generator, set to the OFF position foreach R, G and B.

2-14: CONTRAST CENT

1. Activate the adjustment mode display ofFig. 1-1 and press the channel button (20)on the remote control to select CONTRASTCENT.

2. Press the VOL. UP/DOWN button on on theremote control until the contrast step No.

becomes 26.3. Press the AV button on the remote control to

set to the AV mode.4. Activate the adjustment mode display of Fig. 1-

1 and press the channel button (20) on theremote control to select CONTRAST CENT.

5. Press the VOL. UP/DOWN button on on theremote control until the contrast step No.becomes 24.

2-15: SUB SHARPNESS

1. Activate the adjustment mode display of Fig. 1-1 and press the channel button (27) on theremote control to select SHARPNESS.

2. Press the VOL. UP/DOWN button on on theremote control until the contrast step No.

becomes 5.3. Press the AV button on the remote control to

set to the AV mode. Then perform the aboveadjustments 1-3.

2-17: COLOR CENT

1. Receive the PAL color bar pattern. (RF Input)2. Using the remote control set the brightness,

contrast and color to normal position.3. Connect the oscilloscope to TP803.4. Activate the adjustment mode display of Fig. 1-

1 and press the channel button (23) on theremote control to select COLOR CENT.

5. Adjust the VOLTS RANGE VARIABLE knob ofthe oscilloscope until the range between white100% and 0% is set to 4 scales on the screenof the oscilloscope.

6. Press the VOL. UP/DOWN button on theremote control until the red color level isadjusted to 90 5% of the white level. (Refer toFig. 2-3)

7. Receive the PAL color bar pattern. (Audio

Video Input)8. Press the AV button on the remote control toset to the AV mode. Then perform the aboveadjustments 2-6.

2-18: Confirmation of Fixed Value (Step No.)

Please check if the fixed values of the each adjustment items are set correctly referring below.

NO. FUNCTION RF (50Hz) RF (60Hz) AV02 AGC GAIN 00 --- ---04 RCUTOFF 31 --- ---06 GCUTOFF 31 --- ---07 B DRIVE 31 --- ---15 VCO COARSE L1 00 --- ---16 VCO FINE L1 00 --- ---18 BRIGHT MAX 55 --- ---19 BRIGHT MIN 20 --- ---21 CONTRAST MAX 40 --- ---22 CONTRAST MIN 10 --- ---24 COLOR MAX 60 --- ---25 COLOR MIN 10 --- ---

27 SHARP 05 --- 0530 M B CUT OFF 50 --- ---35 CVBS OUT 10 --- ---36 APR THRESHOLD 15 --- ---37 BELL FILTER 00 --- ---38 BANDPASS 00 --- ---

To check for the fixed values of the RF (60Hz), indicate the adjustment mode screen while input the60Hz video signal.

Adjustment Locations

Waveforms


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