Sharp Sx68jf100 User manual

SX68JF100

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.

COLOURTELEVISION

Chassis No. SP-90

SHARP CORPORATION

SERVICE MANUAL

SX9R7SX68JF10

The chassis in this receiver is partially hot. Use an isolation transformer between the line cord plug and power

receptacle,whenservicingthischassis. Topreventelectricshock,donotremovecover. Nouser–serviceable

parts inside. Refer servicing to qualified service personnel.

WARNING

SX68JF100

MODEL

Page

CONTENTS

»FEATURES .................................................................1

»SPECIFICATIONS ......................................................2

»IMPORTANT SERVICE NOTES .................................2

»ADJUSTMENT PRECAUTIONS.................................3

»TROUBLE SHOOTING TABLE .................................13

»CHASSIS LAYOUT ...................................................18

»BLOCK DIAGRAM....................................................20

»DESCRIPTION OF SCHEMATIC DIAGRAM............24

»WAVEFORMS...........................................................24

»SCHEMATIC DIAGRAM ...........................................27

»PRINTED WIRING BOARD ASSEMBLIES ..............42

»SOLID STATE DEVICE BASE DIAGRAM ................53

»REPLACEMENT PARTS LIST

■ELECTRICAL PARTS...........................................54

■SUPPLIED ACCESSORIES.................................67

■PACKING PARTS .................................................67

■CABINET PARTS .................................................67

Page

FEATURES

ËMulti 28 Systems

ËAuto SearchTuning System

Ë100 CH Program Memory

ËNICAM (I,B/G), IGR (B/G) Stereo Sound

ËHigh Contrast Picture (Black Stretch Circuit)

ËCATV (Hyper Band) Ready

(Used Frequency Synthesizer Tuner)

ËDigital-Comb Filter (PAL/NTSC)

Ë2 Mode Spatializer

ËArabic/Chinese/English/French/Malay/Russian

6 Language OSD

ËOn Timer/Sleep Timer/Reminder Timer

ËAuto Picture Noise Reduction (TV)

ËBlue Back Noise Mute

ËRear AV-In/Out Terminals

ËFront AV-In Terminals

ËComponent Input Terminal

Ë6-Cylinder SP BOX.

ËFull Flat CRT

SX68JF100

2-1 2-2

ELECTRICAL SPECIFICATIONS

Power Input................................................................................ AC 220-240V, 50Hz (Auto)

Power Consumption .................................................................................................... 185W

Convergence .............................................................................. Self Convergence System

Focus ......................................................................Bi-Potential, Uni-Potential Electroslatic

Sweep Deflection ...................................................................................................Magnetic

Intermediate Frequency

Picture IF Carrier ............................................................................................... 38.9 MHz

Sound IF Carrier

6.5 MHz ...........................................................................................................32.4 MHz

6.0 MHz ...........................................................................................................32.9 MHz

5.5 MHz ...........................................................................................................33.4 MHz

4.5 MHz ...........................................................................................................34.4 MHz

Colour Sub-Carrier

PAL/NTSC .....................................................................................................34.47 MHz

SECAM.............................................................................................. 34.494/34.65 MHz

NTSC.............................................................................................................35.32 MHz

Audio Power Output Rating..........................................................................12W x 2 (Max)

Speaker

Size ...........................................................................................12 x 8 cm Elliptic x 2 pcs.

Voice Coil Impedance ............................................................................. 6 ohm at 400Hz

Aerial Input Inpedance .........................................................................75 ohm Unbalanced

Receiving Channels

PAL-B/G, SECAM-B/G

VHF ................................................................................................ AU0 thru AU12 ch

NZ1 thru NZ11 ch

E2 thru E12 ch

UHF ................................................................................................ E21 thru E69 ch

PAL-D/K, SECAM-D/K

VHF .................................................................................................. C1 thru C12 ch

R1 thru R12 ch

UHF ................................................................................................ C13 thru C57 ch

R21 thru R69 ch

PAL-I

VHF .................................................................................................... B thru J ch

UHF ....................................................................................... (H.K): 21 thru 69 ch

NTSC

VHF ........................................................................................ (US): 2 thru 13 ch

(JAPAN): 1 thru 12 ch

UHF ........................................................................................ (US): 14 thru 69 ch

(JAPAN): 13 thru 62 ch

CATV ................................................................................................ S1 thru S20 ch

S21 thru S41 ch

(Hyper)

Receiving Frequency

VHF ............................................................................................44.25 thru 463.25 MHz

UHF..........................................................................................471.25 thru 863.25 MHz

Dimensions..................................................................................................Width: 722 mm

Height: 568 mm

Depth: 500 mm

Weight (approx.): 47.5 kg

Cabinet Material ..................................................................................................All Plastics

Specifications are subject to change without notice.

IMPOTANT SERVICE NOTES

Maintenance and repair of this receiver should be done by

qualified service peronnel only.

SERVICING OF HIGH VOLTAGE SYSTEM

AND PICTURETUBE

When servicing the high voltage system, remove static charge from it

by connecting a 10k ohm Resistor in series with an insulated wire (such

as a test probe) between picture tube dag and 2nd 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 completely.

X-RAY

This receiver is designed so that any X-Ray radiation is kept to an

absolute minimum.Since certain malfunctions or servicing many pro-

duce potentially hazardous radiation with prolonged exposure at close

range, the following precautions should be observed:

1. When repairing the circuit, be sure not to increase the high voltage

to more than 34.0 kV (at beam 0µA) for the set.

2. To keep the set in a normal operation, be sure to make it function

on 30.0 ± 1.5kV (at beam 1.8 mA) in the case of the set.The set has

been factory-Adjusted to the above mentioned high voltage.

If there is a possibility that the high voltage fluctuates as a result of

repairs, never forget to check for such high voltage after the work.

3. Do not substitute a picture tube with unauthorized types and/or

brands which may cause excess X-Ray radiation.

BEFORE RETURNINGTHE RECEIVER

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

checks.

1. Inspect all lead dress to make certain that the 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 fishpapers,cabinet backs, adjustment and compartment

covers or shields, isolation resistor- capacity networks, mechani-

cal insulators etc.

SX68JF100

3-1 3-2

ADJUSTMENT PRECAUTION

The model is a mixture of the adjustment items of I2C BUS-CONTROL and the existing analog

adjustment. Moreover, since the adjustment with I2C BUS-CONTROL is composed of the items

which are set with the initial values (preset values) alone and the data variable items, refer to the

following.

1) Setting method to the microprocessor service mode

1When the jumpers 351 and 352 of SET UP are short-circuited, enter into the service

mode (I2C BUS CONTROL adjustment mode).

2The modes can be sequentially selected with the CH DOWN key of R/C.

3The modes can be sequentially selected in the reversed order of 2with the CH UP key

of R/C.

4The data can be converted with the VOLUME UP/DOWN key of R/C.

5When the short circuit between the jumpers 351 and 352 of the setup is cut off, it will be

released from the service mode.

2) Initial value (preset value) setting

1When the MAIN POWER switch set at the service mode side is turned on, the initial

value will be automatically set only on the new E2PROM (discriminated with the head 4

bytes).

2The initial data is set as shown in the attached sheets.

3Take care that there are the items which need be changed and the items in which the

initial values continue set.

Service item R/C-CODE Remarks

CUTOFF BKGD

CUTOFF BKGD DVD

V-AMP50

V-LINE50

V S-CORR50

V-CENT50

H-CENT50

H-SIZE50

E/W PAR

E/W COR

TRAPE

SCM BELL

SCM R-Y

SCM B-Y

SUB COL

SUB COL DVD

SUB TINT

SUB TINT DVD

SUB BRI

SUB BRI DVD

SUB CONT

SUB CONT DVD

SUB VOL

V-AMP60

V-LINE60

V S-CORR60

V-CENT60

H-CENT60

H-SIZE60

PIP-HPOS

PIP-SUB-TINT

DUAL-PARA

MAIN-HCENT

CONTRAST-UP

COLOUR-UP

COLOUR-DOWN

BRIGHT-UP

BRIGHT-DOWN

TINT-UP

TINT-DOWN

CONTRAST-DOWN

SPA-DOWN

BALLANCE-UP

SHARPNESS-UP

SHARPNESS-DOWN

TREBLE-UP

SPATIALIZER-UP

BASS-DOWN

BASS-UP

TREBLE-DOWN

BALLANCE-DOWN

COLOUR-UP

COLOUR-DOWN

BRIGHT-UP

BRIGHT-DOWN

TINT-UP

TINT-DOWN

TUNE-UP

TUNE-DOWN

FINE-UP

FINE-DOWN

SERVICE MODE

The service key selects the service mode. (Refer to the attached table.)

Select the item with CH UP/DOWN key, and change the data with VOL UP/DOWN key.

Moreover, in the service mode, the item can be directly selected by entering the following key.

Don't use mute key at CUT OFF/BKGD mode.Because BKGD data is initialized.

*1 To receive DVD, switch the key input.

*2 To receive the main 60Hz when inputting the key, switch it from 50Hz key.

• In the service mode, set the user data as shown below.

CONTRAST

COLOUR

BRIGHTNESS

TINT

SHARPNESS

S-VOLUME

WHITE TEMP

BLUE BACK

C SYSTEM

S SYSTEM

PICTURE NR

S-BOOSTER

TREBLE

BASS

SPATIALIZER

BALANCE

SAVE

MAX(60/60)

USER DATA

CENT(0)

MIN(0)

CENT(0)

OFF

AUTO

OFF

CENT(0)

OFF

CENT(0)

OFF

* 3 Setting system of each CH

before switch to 1 service mode

SX68JF100

4-1 4-2

Data at Address 00H thru 03H of E2PROM are read during shift to the service mode.

If any data is different from the following, E2PROM will be initializes as shown in the table.

00H : 55 01H : 88 02H : 32 03H : 13

Note : If you use new E2PROM, it will be initialized.When you used new IC, it can work easily.

•Adjusting items

1. Service mode 1

No.

SUB-TINT sub adjustment (DVD)

SUB-BRIGHTNESS adjustment

SUB-BRIGHTNESS adjustment (DVD)

SUB CONTRAST adjustment

SUB CONTRAST adjustment (DVD)

SUB-SOUND volume adjustment

Vertical size adjustment (60Hz)

Vertical linearity adjustment (60Hz)

Vertical S compensation adjustment (60Hz)

Vertical position adjustment (60Hz)

44 NVM mode

Blank

Cutoff adjustment

Cutoff adjustment (DVD)

Vertical size adjustment (50Hz)

Vertical linearity adjustment (50Hz)

Vertical S compensation adjustment (50Hz)

Vertical position adjustment (50Hz)

Horizontal position adjustment (50Hz)

Horizontal size adjustment (50Hz)

Parabola adjustment

Corner adjustment

Trapezoid adjustment

SECAM BELL filter adjustment

SECAM R-Y adjustment

SECAM B-Y adjustment

SUB-COLOUR sub adjustment

SUB-COLOUR sub adjustment (DVD)

SUB-TINT adjustment

Horizontal position adjustment (60Hz)

Horizontal size adjustment (60Hz)

Vertical high voltage compensation

Horizontal high voltage compensation

Vertical position

Vertical compensation

PIP display position (horizontal)

PIP display position (vertical)

PIP SUB-TINT adjustment

2-screen vertical size adjustment (50Hz)

2-screen horizontal size adjustment (50Hz)

2-screen vertical size adjustment (60Hz)

2-screen horizontal size adjustment (60Hz)

2-screen parabola adjustment

Main-screen horizontal adjustment (50Hz)

Main-screen horizontal adjustment (60Hz)

0~127

0~31

0~63

0~7

0~31

0~63

0~31

0~127

0~255

0~15

0~127

0~255

0~31

0~127

0~31

0~63

0~7

0~31

0~63

0~7

0~3

0~15

0~63

0~127

0~63

0~127

0~63

0~15

SERVICE MODE

CUTOFF BKGD

V-AMP50

V-LINE50

V S-CORR50

V-CENT50

H-CENT50

H-SIZE50

E/W PAR

E/W COR

TRAPE

SCM BELL

R-Y

B-Y

SUB COL

SUB COL DVD

SUB TINT

SUB TINT DVD

SUB BRI

SUB BRI DVD

SUB CONT

SUB CONT DVD

SUB VOL

V-AMP60

V-LINE60

V S-CORR60

V-CENT60

H-CENT60

H-SIZE60

V-COM

H-COM

V-BIAS

V-”COR

PIP-HPOS

PIP-VPOS

PIP-SUB-TINT

DUAL-VSIZE50

DUAL-HSIZE50

DUAL-VSIZE60

DUAL-HSIZE60

DUAL-PARA

MAIN-HCENT50

MAIN-HCENT60

PDC

VCD1

PDC

SECAM

VCD1

DSP

PDC

VCD1

PDC

PIP

VCD2

PDC

PIP

V-AMPLITUDE

V-LINEARITY

V-S.CORRECTION

V-PHASE

H-PHASE

H-SIZE

E-W PARABORA

E-W CORNER

TRAPEZIUM

BELL FILTER

R-Y

B-Y

COLOUR

TINT

BASEBAND-TINT

BRIGHTNESS

SUB CONT

VOLUME

V-AMPLITUDE

V-LINEARITY

V-S.CORRECTION

V-PHASE

H-PHASE

H-SIZE

V-COMPENSATION

H-COMPENSATION

V-SFT

V-”CORRECTION

BGH-FP

BGV-FP

TINT

V-AMPLITUDE

H-SIZE

V-AMPLITUDE

H-SIZE

E-W PARABOLA

MAH-FP

124

140

127

*3 *8

Initial value Data range OSD display IC Data setting

After adjustment, set another data except above at Address 00H thru 03H and turn on

AC power, and the data will be initialized. Take care for this.

Initial value Remarks

[Remarks]

*1 When 50Hz data is set, the setting data is increased or decreased to set 60Hz data.

(However, 50Hz data does not vary when 60Hz data is set.)

*2 Because of the fixed data, it is unnecessary to set the data unless otherwise specified.

*3 It is impossible to set (use) the data “6”and “7”. Use “0”thru “5”.

Moreover, check whether “6”and “7”are used or not.

*4 When the data for the 1-screen mode is set, the set data is increased or decreased to set

the data for the 2-screen mode.

*5 It becomes "Y-Mute" in case of the SUB-TINT (TV & DVD) adjustment.

*6 CUTOFF BKGD

*7 CUTOFF BKGD DVD

*8 When 50Hz data is set, the set data is increased or decreased to set 60Hz data.

Item

2-screen vertical size (50Hz)

2-screen horizontal size (50Hz)

2-screen vertical size (60Hz)

2-screen horizontal size (60Hz)

2-screen parabola

–25

–10

Offset value

Initial value

63CUT-R 63CUT-G 63CUT-B 63DRIVE-G 63DRIVE-B

Initial value

63CUT-R 63CUT-G 63CUT-B 63DRIVE-G 63DRIVE-B

Item

Vertical size

Verticality

Vertical S type compensation

Vertivcal position

Horizontal position

Horizontal size

–3

Offset value

SX68JF100

5-1 5-2

INITIAL SETTING FOR CHANNEL SELECT DATA

1) Inputinthe servicemode The channelselectdata issetintoE2PROMwithMCLkeyasshownbelow.

After execution, select POS1 for the channel.

* CHANNEL PRESET data with MCL key input

SREC/SRAC/SYI/STTM

MCL1(R/C CODE 117h)

CH-No.

E-2

E-4/B-3

OIR-3

E-5

E-6/B-5

OIR-7

OIR-8

E-8/B-7

J-9

E-10/B-9

E-12/B-11

E-21

I-23

E-25

E-34

E-35

E-37

J-38

OIR-42

B-50

I-54

E-58

E-64

I-69

E-69

US-2

A-6

JA-6

JA-8

JA-12

US-14

JA-14

JA-50

US-83

S-2

S-10 SKIP OFF FREE

S-20

S-41 SKIP OFF FREE

B-43

B-45

B-47

E-5

Fv(MHz)

48.25

62.25

77.25

175.25

182.25

183.25

191.25

196.25

199.25

210.25

224.25

471.25

487.25

503.25

575.25

583.25

599.25

621.25

639.25

703.25

735.25

767.25

815.25

855.25

55.25

83.25

183.25

193.25

217.25

471.25

477.25

693.25

885.25

112.25

168.25

294.25

463.25

647.25

663.25

679.25

174.95

175.55

S-SYSTEM

5.5

6.5

5.5

6.5

5.5

4.5

5.5

6.0

5.5

4.5

6.5

5.5

6.0

5.5

6.0

5.5

4.5

5.5

B/G

D/K

B/G

D/K

B/G

D/K

B/G

I-23

I-25

E-34

OI-42

OI-58

CHN/CA-53

I-69

JA-1

JA-2

JA-6

JA-8

JA-11

JA-12

JA-14

JA-50

WE-4

WE-25

WE-28

WE-37

JPN-38

WE-64

S-2

S-10

S-20

E-41

487.25

503.25

575.25

639.25

767.25

831.25

855.25

91.25

97.25

183.25

193.25

211.25

217.25

477.25

693.25

62.25

503.25

527.25

599.25

621.25

815.25

112.25

168.25

294.25

463.95

6.0

6.5

6.0

4.5

5.5

4.5

5.5

B/G

D/K

B/G

E-5 174.95 5.5 B/G

E-5 175.55 5.5 B/GB/G

B/G

SKIP OFF FREE

JAPAN/NSEC

MCL3(R/C CODE 170h)

CH-No.

E-2

OI-2

CA-3

OI-3

CA-5

OI-5

E-5

CA-8

OI-9

E-10

E-12

SKIP OFF FREE

Fv(MHz)

48.25

59.25

65.75

77.25

85.25

93.25

175.25

184.25

199.25

210.25

224.25

S-SYSTEM

5.5

6.5

5.5

6.5

5.5

B/G

D/K

B/G

D/K

B/G

SKIP OFF FREE

SKIP OFF FREE SKIP OFF FREE

Production point

R/C CODE

TV-CH

SREC/SCA(SKD)

MCL2(R/C CODE 169h) INTIAL 8

CH-No.

AU-37

AU-0

AU-2

AU-3

AU-4

AU-5A

AU-6

AU-7

AU-8

AU-9

AU-10

SKIP OFF FREE

AU-37

Fv(MHz)

590.25

46.25

64.25

86.25

138.25

175.25

182.25

189.25

196.25

209.25

216.25

590.25

S-SYSTEM SKIP

5.5

95.25 5.5

5.5

B/G

AU-11 5.5 B/G

OFF

SKIP OFF FREE ON

OFF

B/G

E-2 48.25 5.5 ON

B/G

E-4 62.25 5.5 ON

B/G

OIR-3 77.25 6.5 ON

D/K

E-5 175.25 5.5 ON

B/G

OIR-7 183.25 6.5 ON

D/K

OIR-8 191.25 6.5 ON

D/K

E-10 210.25 5.5 ON

B/G

E-12 224.25 5.5 ON

B/G

I-23 487.25 6.0 ON

E-25 503.25 5.5 ON

B/G

E-34 575.25 5.5 ON

B/G

E-37 599.25 5.5 ON

B/G

J-38 621.25 4.5 ON

OIR-42 639.25 6.5 ON

D/K

I-54 735.25 6.0 ON

E-58 767.25 5.5 ON

B/G

E-64 815.25 5.5 ON

B/G

I-69 855.25 6.0 ON

JA-1 91.25 4.5 ON

JA-6 183.25 4.5 ON

JA-8 193.25 4.5 ON

JA-12 217.25 4.5 ON

US-14 471.25 4.5 ON

JA-50 693.25 4.5 ON

S-2 112.25 5.5 ON

B/G

S-10 168.25 5.5 ON

B/G

S-20 294.25 5.5 ON

B/G

S-41 463.25 5.5 ON

B/G

E-5(Lo) 174.25 5.5 ON

B/G

E-5(Hi) 175.25 5.5 ON

B/G

AU-28 527.25 5.5 B/G

SKIP OFF FREE

29A-FX SYSTEM INITIAL SETTING AT FACTORY

SKIP Refer to MCL2 Channel select data.(Page 5-1)

Image system AUTO (All POS)

NICAM forcible FM OFF (All POS)

NICAM DS M1 (All POS)

NICAM ST STEREO (All POS)

NICAM MONO MONO (All POS)

IGR forcible FM OFF (All POS)

IGR ST STEREO (All POS)

IGR DS MAIN (All POS)

Last POWER ON

TV/AV TV

Last POS 2

FB POS 2

SAVE OFF

AUTOSELECT ON

BLUEBACK OFF

DIGIT 2 DIGIT

H/P MODE AUTO

H/P VOL 30

BALANCE 0 (Center)

VOLUME 0

ON-TIMER POS Not set.

ON-TIMER VOL Not set.

Entertainment MOVIE

Mode

CONTRAST

COLOUR

BRIGHTNESS

TINT

SHARPNESS

WHITE-TEMP

YNR

S-BOOST

SPATIALIZER

TREBLE

BASS

STANDARD

OFF

MOVIE

+10 step to BLUE

OFF

ON [I] : +15

+10

+12

MUSIC

ON [I]

OFF

ON [I] : +10

+12

NEWS

OFF

Model name suffix

B (Hong Kong)

C (Singapore)

G/F

G (Africa)

X (Australia)

H (Thailand)

Earth magnetism

20,000

-10,000

30,000

-10,000

-50,000

40,000

20,000

40,000

20,000

Background

12,300°K

0.272

0.275

10,000 40,000 12,300°K 0.272 0.275

SX68JF100

6-1 6-2

SERVICE ADJUSTMENT

PIF CHECK ADJUSTMENT

NO. Adjustment part Adjusting procedure and conditions Waveform and others

1 RF-AGC

Cut-in adjustment

(Alreadypreset.)

1E-12CH (PAL colour Bar) is received.

Electric field intensity:54±1dBµV(75 Open)

2Connect the oscilloscope to TP210 as shown

below.

Note:If theimpedanceconverterof

50/75isnotusedat the elec-

tric field intensity meter of

50Ωsystem, set 52 ± 1dBV

for 54 ± 1dBµV (75ΩOpen).

Moreover, take care for the

loss if the converter is used.

* If there is not any problem when

the several lots of the model

whichemploystherelevanttuner

is checked, apply the check of

only 5and 6.

3Drop the input electric field intensity to 51 ±

1dBµV (75ΩOpen).

4Under the conditions 1 and 3, TP210 voltage

does not vary.

Raise the input signal electric field strength to

60 ± 1dBµV (75ΩOpen), and verify that it is

0.1V or more lower than TP210 of 1 and 3.

5Setthesignal at 63 to 67dBµV,andmakesure

there is no noise.

6Setthesignal at 90 to 95dBµV,andmakesure

that there is no cross modulation beat.

0.1V

Bias

box

TP210

TV SETOscilloscope

Bias Box: About 4.5V

NO. Adjustment part Adjusting procedure and conditions Waveform and others

VIDEO LEVEL ADJUSTMENT

NO. Adjustment part Adjusting procedure and conditions Waveform and others

SERVICE ADJUSTMENT

1 VIDEO DET

Level adjustment

R220

(in the main unit)

1E-12CH B/G-PAL colour bar (100% white bar)

is received.

2Adjust R220 to make the video output of the

AV-OUT terminal become 1.0 ± 0.05Vp-p at

the 75Ωterminator.

1 DigitalcombfilterY

level adjustment

R5467

(in the DID unit)

1Input PAL colour bar signal (100% white col-

our bar) of 1.0Vp-p at the 75Ωterminator from

AV-IN terminal.

(Input level 1.0 ± 0.05Vp-p)

2Connect the oscilloscope to YA (pin (7) of

TP5462.)

3Adjust R5467 to make the Y signal (100%

white) of TP5462 become 2.0 ± 0.1Vp-p.

* Verifythatallarelinearlyamplified.(100% white

area must not be collapsed.)

Whenitis adjusted at E-12ch, take

care for the voltage value.

Adjustment value (TP5462) 2.0Vp-p

NO. Adjustment part Adjusting procedure and conditions Waveform and others

PAL CHROMA ADJUSTMENT

1-1 SUB-COLOUR

(SUB COL)

I2C bus

adjustment

(RF signal)

1E-12CH(PAL colour bar) is received.

2Make the picture normal with the remote con-

troller.

3Connect the oscilloscope to TP3802. (10:1

probe is used.)

Range: 2V/Div.

Sweep time : 20µsec/Div.

4Set the "SUB COL" adjustment mode with the

remotecontroller,andvary thesubcolourdata

tomake75%W of the PALcolourbarandRED

at the same level for adjustment shown in

Fig. 1.

NO. Adjustment part Adjusting procedure and conditions Waveform and others

NTSC CHROMA ADJUSATMENT

1-1 SUB-TINT

(SUB TINT)

I2C bus

adjustment

(RF signal)

1Select the "SUB-TINT" adjustment mode (au-

tomatic Y cut) to receive JA-8CH(NTSC col-

our bar).

2Connect the oscilloscope to TP3803 (B-out).

Range : 50mV/Div. (AC)

Sweep time:10µsec/Div. (10:1 probe is used.)

3Vary the sub tint data to adjust the waveform

to be gained as shown in Fig. 3.

TP3803………(KY) 6 pin

1-2 SUB-COLOUR

(SUB COL

DVD)

I2C bus

adjustment

(DVD signal)

1DVD signal is received.(Half colour bar signal)

2Make the picture normal with the remote con-

troller.

3Connect the oscilloscope to TP3802. (10:1

probe is used.)

Range : 2VA/Div.

Sweep time: 20µsec/Div.

4Setthe"SUB COLDVD"adjustment modewith

the remote controller, and vary the sub colour

data to make 100%W of the colour bar and

RED at the same level for adjustment shown

in Fig. 2.

1-2 SUB-TINT

(SUB TINT DVD)

I2C bus

adjustment

(DVD signal)

1Selectthe"SUB-TINTDVD" adjustment mode

(automatic Y cut) to receive the DVD colour

bar signal.

2Connect the oscilloscope to TP3803.

Range : 50mV/Div. (AC)

Sweeptime:10µsec/Div.(10:1probeisused.).

3Vary the sub tint data to adjust the waveform

to be gained as shown in Fig. 4.

4Release the adjustment mode.

Cy G

W Y 100%W Mg

Fig. 1

Fig. 2

Fig. 4

A=B=C

Fig. 3

A=B=C

W Y Cy G Mg R B BLK

Cy G

75%W Y 100%W Mg R

SX68JF100

7-1 7-2

adjust

Fig. 5( a)

Fig. 5 (b)

Fig. 6 (a)

OFF SET

Fig. 7 (a)

Fig. 6 (b)

Fig. 7 (b)

OFF SET

NO. Adjustment part Adjusting procedure and conditions Waveform and others

SECAM CHROMA ADJUSTMENT

1 BELL FILTER f0

(SCM BELL)

I2C bus

adjustment

1Receive Oi-5CH(SECAM colour bar).

2Select the "SCM BELL" fo adjustment mode.

3Connect the oscilloscope to TP901 of main.

(TP2901 inVCJ unit)

Range : 10mV/Div. (AC)

Sweep time:20µsec/Div. (10:1 probe is used.)

4Vary the bell filter data to align the waveform

to be the nearest to that in Fig. 5 (b).

(Arrange the level to gain the whole balance.)

2 SECAM black

level R-Y/B-Y

(R-Y and B-Y)

I2C bus

adjustment

1Receive Oi-5CH(SECAM colour bar).

2Select SECAM black level adjustment "R-Y"

mode.

3Connect the oscilloscope to TP802 (TP2804

in VCJ unit) of the main.

Range: 10mV/Div.

Sweep time:20µsec/Div. (10:1 probe is used.)

4Vary R-Y data to minimize the offset between

the non-signal line and signal line as shown in

Fig. 6 (b).

5Select SECAM black label adjustment "B-Y"

mode.

6ReconnecttheoscilloscopetoTP803 (TP2805

in VCJ unit) of the main.

The conditions are the same as in Item (3).

7Vary B-Y data to minimize the offset between

the non-signal line and signal line as shown in

Fig. 7 (b).

* To be at the same levbel.

NO. Adjustment part Adjusting procedure and conditions Waveform and others

1 SUB SOUND

(SUB VOL)

(I2C bus

adjustment)

1Receive E-12ch (PAL colour bar). Signal con-

tent: 400Hz 100% Mod.

2Connect the probe of the meter to (SI) con-

nector. (See Note)

3Select "SUBVOL" in the service mode.

4Adjust the sub-sound data to make the meter

indicate 8.5Vrms (at L-ch).

Adjustment value :8.5 ± 0.4Vrms

NO. Adjustment part Adjusting procedure and conditions Waveform and others

SIF (NICAM/IGR) ADJUSTMENT

1 VCO COIL

T2300

(in the NICAM

unit)

1Receive E-69CH (PAL colour bar).

(Set the receiving frequency at AFT OFF Ex.

E-69=855.25 MHz.)

2Connect the digital voltmeter toTP301 (in the

main unit).

3Verify that it is turned counterclockwise to 0V

andclockwiseto 5V,andadjustT2300tomake

the DC voltage ofTP2300 become 2.5 ± 0.1V

in the range.

<Single-unit adjustment> - For your Reference.

Vcc 5 ± 0.1V

IF input frequency 38.9MHz ± 10kHz

Control it under these conditions.

AdjustT2300 to make the DC voltage ofTP2300

(in the NICAM unit) become 2.5 ± 0.1V.

After single-unit adjustment, check the practical

setup.

Align the receiving frequency to the select chan-

nel frequency. (AFT OFF)

ThecheckedTP301 in the mainunitvoltagemust

be 2.5 ± 1.0V.

(Take care that ±1.0 is considered for the Vcc dif-

ference between the single unit and unit, Fo dif-

ference and so on, but is not the adjustment pre-

cision.)

2 Noise mute

check 1Receive E-12CH (PAL colour bar).

2Maximize the sound volume to verify that the

sound is output from the speaker. Then, set

the non-signal state.

3At this time, verify that the audio mute oper-

ates.

4After checking the operation, set the sound

volume to be the minimum.

Note:

* SPATIALIZER ..... OFF

* S-Normal state

* S-VOL ................ Max

* S-BOOSTER ...... OFF

SOUND LEVEL ADJUSTMENT

SX68JF100

8-1 8-2

1 CRT CUT OFF

(CUT OFF

BKGD)

Service mode

I2C bus data

adjustment

1Receive E-5CH (Monoscope pattern).

2Set P-NORM with the remote controller.

3Turn on the service SW, and select the "CUT

OFF BKGD" mode.

4Set the screenVR to 0/10.

5Press“”key of the remote controller to se-

lect the horizontal centering mode.

9Turn the screen VR clockwise, and adjust the

first lighting horizontal centering raster to

slightly light.

0AdjusttheCUTOFFdataoftwoother colours,

and coarsely adjust the horizontal centering

to become white. (Note)

qTurnthe screenVR in the oppositedirectionto

thepoint where the horizontal centering raster

goes out.

Note: Apply the adjustment after aging with

the beam current 1,500 ± 50µA or

more for 30 minutes or more

(On the monocolour screen of white or

green)

wPress “-/--”key of the remote controller to se-

lect the normal mode.

Note:

R CUT OFF UP "1" KEY

DOWN "4" KEY

G CUT OFF UP "2" KEY

DOWN "5" KEY

B CUT OFF UP "3" KEY

DOWN "6" KEY

Data up/down is possible with the

above comparison.

NO. Adjustment part Adjusting procedure and conditions Waveform and others

CUT OFF, BKGD ADJUSTMENT

2-1 White balance

background

(CUT OFF

BKGD)

I2C bus

adjustment

(RF Signal)

1E-5CH (Monoscope pattern) is received.

2Set P-NOM with the remote controller.

3Connect the beam ammeter betweenTP1601

andTP1602.

4Coarsely adjust the beam current to approx.

1.8 mA with R1633 (sub-contrastVR).

5Receive the window pattern with AV input.

(PAL burst is generated with the signal gen-

erator.) Select "CUT OFF BKGD mode".

6With the data of G-drive and B-drive, adjust

the colour temperature 12,300°K of the white

peak to white.

7Adjust the right dark area of the window to

12,300°K with R-cut off, G-cut off and B-cut off.

8Readjust the colour temperature at the white

peak.

9Check 12,300°K at the low white.

Note: Apply this adjustment after aging with

thebeamcurrent1,500±50µAormore

for 30 minutes or more.

(On the white or green monocolour

screen)

* The colour temperature is based on the ship-

ment initial setting table.

* 12300 °K X : 0.272

Y : 0.275

(With Minolta colour analyzer CA-

100)

Note:

G-DRIVE UP "7" KEY

DOWN " " KEY

B-DRIVE UP "8" KEY

DOWN "0" KEY

Data up/down is possible with the

above comparison.

* Apply R/G/B-CUT and B/G-

DRIVE after verifying that they

are at the initial values.

2-2 White balance

background

(CUT OFF DVD

BKGD)

I2C BUS

adjustment

(DVD signal)

1The window pattern is received with DVD sig-

nal (component signal).

2Apply the adjustment in the same step as 2-

15and subsequence above. (12,300°K)

(G-DRIVE,B-DRIVE,R-CUTOFF,G-CUTOFF

and B-CUTOFF)

Apply the adjustment after the end of 2-1.

Note: Use the window pattern of

the signal generator for ad-

justment.

NO. Adjustment part Adjusting procedure and conditions Waveform and others

3 MAX BEAM

R1633

(in the power

unit)

1Receive E-5CH (Monoscope pattern) with

standard mode.

2Make the image normal with the remote con-

troller.

3Connect the beam ammeter betweenTP1601

and TP1602.

Ammeter full scale: 3mA range

TP1602 is connected at the - side of the am-

meter.

TP1601 is connected at the + side of the am-

meter.

4Adjustthe beam current to 1.8mA± 20µA with

R1633 (sub-contrast VR).

Note: Apply the adjustment after aging with

thebeamcurrent1,500±50µAormore

for 30 minutes or more.

(On the white or green monocolour

screen.)

SUB CONT SUB-BRIGHT ADJUSTMENT

4-1 Sub-contrast

(SUB CONT.)

I2C bus

adjustment

(RF signal)

1Receive the window pattern with AV input.

2Make the picture normal with the remote con-

troller.

3Select the "SUB-CONTRAST" adjustment

mode with the remote controller, and adjust

50% white to 150 ± 5cd.

Note: Use “Y”of Minolta colour

analyzer CA-100.

Note: Us the PAL window pattern

of the signal generator for

adjustment.

(PAL and colour burst are

provided.)

4-2 Sub-contrast

(SUB CONT.

DVD)

I2C bus

adjustment

(DVD signal)

1Select the DVD mode.

2Receive the signal of the DVD signal genera-

tor. (Component signal)

(Window pattern)

3Make the picture normal with the remote con-

troller.

4Select the "SUB-CONTRAST" adjustment

mode (DVD) with the remote controller, and

adjust 50% white to 150 ± 5cd.

5-1 Sub-bright

(SUB BRI)

I2C bus

adjustment

(RF signal)

1Receive the window pattern with AV input.

2Make the picture normal with the remote con-

troller.

3Select the "SUB-BRIGHT" adjustment mode

with the remote controller, and adjust the

right dark white area of the window pattern

to 2.7 ± 0.3cd.

Reference

* When E-2CH (Crosshatch pat-

tern) or equivalent signal is re-

ceived,

1Makethepicturenormalwiththe

remote controller.

2Adjustthe 3rd (1 thru 5 fromthe

left)blackofthewindowpattern

to sink.

5-2 Sub-bright

(SUB BRI DVD)

I2C bus

adjustment

(DVD signal)

1Select the DVD mode.

2Receive the signal of the DVD signal genera-

tor. (Component signal) (Window pattern)

3Make the picture normal with the remote con-

troller.

4Select the "SUB-BRIGHT" adjustment mode

(DVD), and adjust the right dark white area of

the window pattern to 2.7 ± 0.3cd of the win-

dow pattern.

CUTOFF POINT

SX68JF100

9-1 9-2

Monocolor

screen

GREEN

Monocolor

screen

BLUE

Monocolor screen

release

Monocolor

screen

RED

90mm

A=B

Fig. 8-1

Fig. 8-2: Rank A CRT

Fig. 8-3: Rank A CRT

Note:Set to natural magnetic field.

NO. Adjustment part Adjusting procedure and conditions Waveform and others

1 Purity

adjustment 1Select the green monocolour screen with the

remote controller, and set the beam current of

1.4 mA with the contrast control.

2Sufficiently degauss CRT with the degausing

coil.

Note:For the adjustable magnetic field, refer to

the job instruction sheet.

The adjustable magnetic field is as shown

page 5.

3The purity magnet must be previously set at

the0magnetic field,andtheconvergencemust

be adjusted to be rough.

With P-MG, adjust it to the center - rank A.

4Observing the points a and b of Fig. 8-1 with

the microscope, move DY fore and aft to set

the landing at Rank A.

If the a/b balance is poor, compensate it to the

center “Rank AB”.

5Align it to zero, keeping the raster rotation in

the east direction.

6Tighten the deflection coil fastening screws.

Tightening torque: 108 ± 20N (11 ± 2 kgf)

7Checkingthe CRTcornerarea,bondthemag-

netic sheet to set the landing at Rank A for

compensation.

Note: Apply the adjustment after aging with the

beam current 1,500 ± 50µA or more for 30

minutes or more.

Note: Select the service mode, and press the

monocolourkeyofR/Cforprocess,and the

monocolourscreen(green)willbeselected.

* Everypushofthe monocolour keychangesthe

screen as follows.

PURITY ADJUSTMENT

2 Peripheral

purity

adjustment

1AfterYPBadjustmentofDY, receivethecross-

hatch,andcoarselyadjustYhandYvbyswing-

ing DY. (Fix it with the wedge within 30 sec-

onds.)

2In the monocolour screen (green), set the

beam current at 1,400µA.

3In Bh=0 and Bv= Refer to the factory setting

and geomagnetic adjustment by model (ref.),

verifythat thelandinginthecornerareaisprac-

tically at the rank A. If it is deviated, bond the

Pu compensation Mg for adjustment.

* Continuouslypressthemonocolour

key 1 second or more, and the

monocolour mode will be selected

without the service mode.

Even with TEXT key or “R. G. Cy”

key, it can be directly switched to

each monocolour screen.

NO. Adjustment part Adjusting procedure and conditions Waveform and others

CONVERGENCE ADJUSTMENT

1 Convergence

adjustment

(Apply this after

purity

adjustment.)

1Receive E-2CH (Crosshatch pattern).

2With the remote controller, make it normal.

(Static convergence adjustment)

1Overlap blue and red with the open-/closing

angle and rotation of the 4-pole magnet.

2Overlap green on blue and red with the open-

/closing angle and rotation of the 6-pole mag-

net.

(Dynamic Convergence Adjustment)

1Tiltthedeflectionyokeinalldirectionsuntilthe

verticalandhorizontallinesbecomedistortion-

freeandstraighton the screen.Fixthewedges

in this position.

2Using theYH andYHC controls on the deflec-

tion yoke, adjust the red and blue vertical lines

along the Y axis at the screen center. (See

Figs. 9-1 and 9-2.)

3If the red and blue horizontal lines (XV) along

the X axis at the screen center are out of

position, turn the balance coil on the deflec-

tion yoke to adjust the red and blue lines

(XV). (See Fig. 9-3.)

4Lookingallover the screen to makesurethere

is no problem.Apply glass tape to the wedges

and apply lacquer to the deflection yoke lock

screws, magnet unit (purity, 4-pole and 6-pole

magnets), and magnet unit lock screws.

Fig. 9-2 Adjust withYH control.

Fig. 9-3 Adjust with balance coil.

Blue Red Red Blue

Blue

Blue Red Red Blue

X axis

Y axis

Fig. 9-1 Adjust withYHC control.

4-pole magnet 6-pole magnet

Purity magnet Lacquer 30 ±0.5mm

Balance coil

YHC

SX68JF100

10-1 10-2

NO. Adjustment part Adjusting procedure and conditions Waveform and others

FOCUS ADJUSTMENT

1 Dynamic focus

adjustment

L1680

(in the power

unit)

1Receive E-5CH (Monoscope Pattern).

2With the remote controller, make it normal.

3Connect the synchroscope to the eight pins of

T1680.

4TurningL1680,adjust theamplitudeofthehori-

zontal frequency waveform to 600Vp-p.

2 Focus

adjustment

FBT FOCUS-VR

(in the power

unit)

1Receive E-5CH (Monoscope Pattern).

2With the remote controller, make the image

normal.

3Adjust the focus VR-1 to make the horizontal

line around character“325”at left-top position

as fine as possible.

4Adjust the focus VR-2 to make the vertical line

around character “325”at left-top position as

fine as possible.

5Repeat Items 3 and 4 once again, adjust the

focus.

600 ±20Vp-p

NO. Adjustment part Adjusting procedure and conditions Waveform and others

HORIZONTAL/VERTICAL CIRCUIT ADJUSTMENT

1 Main screen

adjustment

V-AMP50

V-LINE50

V-S-CORR50

V-CENT50

H-CENT50

H-SIZE50

E/W-PAR

EW-COR

TRAPE

V-COM

H-COM

V-BIAS

V- COR

OTHER

I2C BUS

adjustment

Adjust the overscan to 8.5%. (E-5)

Adjust the linearity to the best.

Already preset. (Adjust this unless the linearity

is achieved.)

Align the center of the screen to the geometric

center of CRT. (E-5)

Align the center of the screen to the geometric

center of CRT. (E-5)

Adjust the overscan to 8.5%. (E-5)

Look at the first vertical line from the right end of

the crosshatch pattern. Adjust the data so that

the four cells just on the left of this vertical line be

straight down. (Fig. 10) (E-2)

Look at the first vertical line from the right end of

the crosshatch pattern. Adjust the data so that

thelowerhalf of this vertical line bestraightdown.

(Fig. 11) (E-2)

Look at the first vertical line from the right end of

the crosshatch pattern. Adjust the data so that

the distance D1 (between the first line's center

and the screen edge) and the distance D2 (be-

tweenthefirstline'sbottomandthescreenedge)

be the same. (Fig. 12) (E-2)

Already preset. (Adjust if the quality is specially

poor.)

Already preset. (Adjust if the quality is specially

poor.)

Already preset. (Adjust if the quality is specially

poor.)

Already preset. (Adjust if the quality is specially

poor.)

OntheitemsofV-AMP60,V-LINE60,VS-CORR60,

V-CENT60,H-CENT60andH-SIZE60,thecompen-

sation data is automatically input if the 50Hz mode

adjustment is

done.

The receiving channel in ( ) are

the following signals.

(E-2): Crosshatch (50Hz)

(E-5): Monoscope (50Hz)

However, if it is largely deviated

when it is checked in the 60Hz

mode,readjustitin the60Hzmode.

Fig. 10

Fig. 11

Fig. 12

Table of contents

Popular TV manuals by other brands

Philips

Philips 32PFL7403D null

Philips

Philips 19PFL3403D null

Philips

Philips 19PFL5403D null

Philips

Philips 32PFL7605C null

Philips

Philips 32PFL7603D - annexe 1 null

Haier

Haier HS-2190 null

Philips

Philips 19PFL3404D null

Toshiba

Toshiba 27A10 owner's manual

Philips

Philips 42PF9630A/37 user manual

Hitachi

Hitachi 32FX48B operating guide

DAEWOO ELECTRONICS

DAEWOO ELECTRONICS DTQ-14V1FC Service manual

Changhong Electric

Changhong Electric uhd55b6000is Operation manual

Philips

Philips Matchline 21CE7551 operating instructions

Panasonic

Panasonic Genus TX-G10 operating instructions

Toshiba

Toshiba 19A20 Service manual

Philips

Philips 25PT4523-16 manual

Sony

Sony XBR-100Z9D reference guide

Philips

Philips PR0930X3 owner's manual

Sharp SX68JF100 User manual

Popular TV manuals by other brands