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32HW-57E

CONTENTS

SHARP CORPORATION

PAL

B/G, I

/ SECAM

L/L’, B/G, D/K

SYSTEM COLOUR TELEVISION

SEJB32HW57E00

SERVICE MANUAL

In the interests o user sa ety (required by sa ety

regulations in some countries) the set should restored

to its original condition and only parts identical to

those speci ied should be used.

Issued: 6th Sept 2001

This document has been published to

be used or a ter sales service only.

DA-100W CHASSIS

ELECTRICAL SPECIFICATIONS......................3

IMPORTANT SERVICING NOTES....................4

ADJUSTMENTS PROCEDURES......................5

LED FLASHING CODES..................................10

PRINTED WIRING BOARDS............................11

COMPONENT LOCATION TABLES.................19

SCHEMATIC DIAGRAMS.................................26

BLOCK DIAGRAM............................................37

PARTS LISTING...............................................38

PACKING OF THE SET & ACCESSORIES.....49

CONTROLS &TERMINALS..............................50





MODEL

32HW-57E

DE/ES/IT/SE

RTV servis Horvat

Tel: ++385-31-856-842

Tel/fax: ++385-31-856-139

Mob: 098-788-319

www.rtv-horvat-d .hr

32HW-57E

ELECTRICAL SPECIFICATIONS

•White Level

Set brightness control to get total picture tube cathode current o 600 milliammeter under no signal

condition. Maximum necessary correction o each picture tube cathode current to get 8550 de-

grees K+1 MPCD screen temperature should not exceed 15% o its original value.

X=0 290 Y=0 300

WARNING

The chassis in this receiver is partially hot. Use an isolation trans ormer between the line cord plug

and power receptacle, when servicing this chassis.

To prevent electric shock, do not remove cover. No user-serviceable parts inside. Re er servicing to

quali ied service personnel.

Speci ications are subject to change without prior notice.

•Picture Intermediate requency

L’......................................................33.9MHz

L, B/G, D/K, I...............................38.9MHz

•Sound Carrier Trap

L’..................................................40.4MHz

L, D/K...........................................32.4MHz

B/G..............................................33.4MHz

I....................................................32.9MHz

•Adjacent Sound Carrier Trap

L’..................................................32.4MHz

L, D/K, B/G..................................40.4MHz

I....................................................40.9MHz

•Adjacent Picture Carrier Trap

L’..........................................................41.9MHz

L, D/K, I........................................30.9MHz

B/G..............................................31.9MHz

•Aerial Input Impedance

VHF/UHF ................. 75 ohm Unbalanced

•Tuning Ranges ..... 45.75MHz thru 855.25 MHz

VHF: E2-E12 CH / F2-F10 CH, IR A -IR J CH

S1 - S41 CH (HIPERBAND)

UHF: E-21- E69 CH, I21-I69 CH

•Power Input ...................... 220V-240 Volts AC 50Hz

•Power Consumption

Normal Operation .................................115W

Stand-by Operation ...............................1.3W

•Audio Power Output Rating (MPO) / Impedance

Internal Le t Speaker ...................... 10W, 7Ω

Internal Right Speaker .................... 10W, 7Ω

•Speakers

Le t / Right ...............................12W, 6 x 12cm

•Convergence

Static (Centre) ........ between any two colours

Dynamic ..................... a ter static equals zero

•Focus ....................... High Bi-Potential Electrostatic

•Sweep De lection ............................... Magnetic

MODEL DESTINATION (Operation Manual languages)

32HW-57EDE: Dutch, French, German and Italian.

32HW-57EES: Portuguese and Spanish.

32HW-57EIT: Italian.

32HW-57ESE: Danish, English, Finnish, Norwegian and Swedish.

32HW-57E

IMPORTANT SERVICING NOTES

Only qualified se vice pe sonnel a e allowed to ca y out maintenance and epai of this eceive .

SERVICING OF HIGH VOLTAGE SYSTEM AND CRT

It is impo tant that the static cha ge is emoved f om the high voltage system when ca ying out wo k

on the eceive . This can be achieved by connecting a 10K esisto (with a suitably insulated lead) f om

the CRT cavity connecto to the CRT g ound tag. This must be ca ied out with the AC supply discon-

nected f om the eceive .

Note the following:

• The CRT in this eceive employs Integ al Implosion P otection.

• If the CRT has to be changed it MUST be eplaced with the co ect type fo continued safe

wo king

• DO NOT lift the CRT by its neck.

• When handing the CRT, ensu e that shatte p oof goggles a e wo n.

• Ensu e that the CRT is discha ge befo e handling.

X-RAY

This eceive is designed to keep any x- ay emission to an absolute minimum. Some fault conditions

and se vicing p ocedu es may p oduce potentially haza dous x- ay adiation levels. This is a p oblem

when in close p oximity to the eceive fo long pe iods of time. To educe any isks associated with

this, please obse ve the following p ecautions:

1. When unde taking any se vicing on this chassis, DO NOT inc ease the EHT to mo e than 33 KV,

(at a instantaneous beam cu ent of 2000µΑ).

2. Ensu e that du ing no mal ope ation the EHT does not exceed 30KV±1.5KV (at a beam cu ent of

1500µΑ). This level has been p eset in the facto y. Always check that this level has not been ex-

ceeded afte ca ying out any epai on the eceive ..

3. DO NOT eplace the CRT with any othe type than that specified in the pa ts listing as this may

cause excessive x- ay adiation.

BEFORE RETURNING THE RECEIVER TO THE CUSTOMER

In addition to the above checks, the following should also be ca ied out befo e etu ning the eceive

to the custome .

1. Inspect all the leads to ensu e that they a e d essed co ectly and that they a e not obst ucted o

pinched by any othe pa ts.

2. Ensu e that all p otective devices a e in good condition. These will include nonmetallic cont ol

knobs, insulating fish pape s, cabinets backs, compa tment cove s o shields, mechanical insulato s,

etc.

32HW-57E

ADJUSTMENT PROCEDURES

All adjustments to this chassis, except or ocus, are carried out in the service mode.

••

• SERVICE MODE

The service mode is provided to enable the engineer to correctly set up the receiver to the CRT itted in the set.

Note that these adjustments may vary rom one receiver to another.

To enter the service mode, carry out the ollowing procedure.

1. Connect a test pattern to the antenna terminal.

2. Tune the receiver to this signal.

3. Turn the receiver o using the mains switch.

4. Press volume down and channel up buttons on the

ront o the receiver at the same time.

5. Keeping these buttons pressed, turn the mains on.

6. When the set starts up it will be in service mode.

7. Release the two buttons.

••

• Use the channel up and down buttons to move between the options.

••

• Use the volume control buttons to change the data.

••

• To store the data, use the stand-by button on the remote control.

••

• To exit the service mode, turn the receiver o using the mains switch.

When the service mode is entered the ollowing On Screen Display appears

-SERVICE SOFTWARE AND HEXADECIMAL COUNTER DISPLAY:

SW ON XXXX SW OFF XXXX HOURS ON XXXX

The igures displayed in the XXXX locations are hexadecimal representations o the number o times that particular

unction has been executed. For example i the hexadecimal number displayed a ter SW ON was 0E4A, this would

correspond to the receiver being turned on 3658 times.

Adjustment menu:

The ollowing adjustments can be carried out in the service mode.

• Horizontal Shi t

• East West Width

• Pin Phase

• Pin Amp

• Upper Corner Correction

• Vertical Linearity

• Vertical Angle

• Vertical Bow

• Vertical Amplitude

• S Correction

• Vertical Shi t

• Red Gain

• Green Gain

• Blue Gain

• Red Cut O

• Green Cut O

• Blue Cut O

• Alter NVM Page

• Alter NVM Position

• Alter NVM Value

• Teletext Mix Mode Contrast

• Teletext Contrast

• OSD Contrast

• DVCO Adjustment (Only PAL)

• DVCO Adjustment (Only NTSC)

• Luma Croma delay

• AGC Adjustment

• AFT Adjustment

• AFT Adjustment or L’

• OPC Value (Not available in this model)

• Auto Installation On/O

Geometry Adjustments

All geometry adjustments are based on an internally generated test pattern as shown

in igure 1. When carrying out any o the above geometry adjustments, use the inter-

nally generated test pattern or guidance.

Note that the receiver should be set to FULL MODE be ore carrying out any geom-

etry adjustments. This can be achieved by pressing the widescreen mode button on

the remote control until FULL MODE appears on the OSD. This can only be done

out o the service mode.

Fig.1

32HW-57E

Horizontal

• Horizontal Shi t

• E-W Width

• Pin Phase

• Pin Amp

• Upper Corner Amplitude

• Lower Corner Symmetry

• Extreme Corner Symmetry

Vertical

• Vertical Amplitude

• S Correction

• Vertical Shi t

• Vertical Linearity

• Vertical angle

• Vertical bow

Just in case the TV set requires a ull geometries adjustment, please proceed irst with

Vertical according to the above order, and a ter that, adjust Horizontal according to the

above order.

Horizontal Shift

Adjust the horizontal shi t so that the picture is centred.

The e ect o this adjustment is shown in igure 2.

• When the volume up button is pressed, the picture moves to the le t.

• When the volume down button is pressed, the picture moves to the right.

• Press the stand-by button on the remote control to store.

E-W Width

Adjust the E-W Width so that 9% over-scan is achieved.

The e ect o this adjustment is shown in igure 3.

• When the volume up button is pressed, horizontal scanning increases.

• When the volume down button is pressed, horizontal scanning decreases.

• Press the stand-by button on the remote control to store.

Pin Phase

Adjust the Pin Phase so that the picture is symmetrical top and bottom.

The e ect o this adjustment is shown in igure 4.

• When the volume up button is pressed, side pincushion changes.

• When the volume down button is pressed, side pincushion changes.

• Press the stand-by button on the remote control to store.

Pin Amp

Adjust the Pin Amplitude so that the picture is centred.

The e ect o this adjustment is shown in igure 5.

• When the volume up button is pressed, side pincushion changes rom pincushion to

barrel shape.

• When the volume down button is pressed, side pincushion changes rom pincush-

ion to barrel shape.

• Press the stand-by button on the remote control to store.

Upper Corner Correction

Adjust the Upper Corner Correction so that the picture is centred.

The e ect o this adjustment is shown in igure 6.

• When the volume up button is pressed, side pincushion changes rom pincushion to

barrel shape.

• When the volume down button is pressed, side pincushion changes rom pincush-

ion to barrel shape.

• Press the stand-by button on the remote control to store.

Fig.2

Fig.3

Fig.4

Fig.5

Fig.6

The ollowing geometry adjustments can be carried out. Detailed instructions on how to execute these are given on

the ollowing pages

32HW-57E

Lower Corner Correction

Adjust the Lower Corner Correction so that the picture is centred.

The e ect o this adjustment is shown in igure 7.

• When the volume up button is pressed, side pincushion changes rom pincushion to

barrel shape.

• When the volume down button is pressed, side pincushion changes rom pincushion to

barrel shape.

• Press the stand-by button on the remote control to store.

Vertical Linearity

Adjust the Vertical Linearity so that the upper and lower parts o the picture are symmetrical.

The e ect o this adjustment is shown in igure 8.

• When the volume up button is pressed, the upper picture scanning decreases and the

lower picture scanning increases.

• When the volume down button is pressed, the upper picture scanning increases and the

lower picture scanning decreases.

• Press the stand-by button on the remote control to store.

Vertical Angle

Adjust the Vertical Amplitude so that the picture is centred.

The e ect o this adjustment is shown in igure 9

• When the volume up button is pressed, the vertical angle changes.

• When the volume down button is pressed, the vertical angle changes.

• Press the stand-by button on the remote control to store.

Vertical Bow

Adjust the Vertical Bow so that the picture is centred.

The e ect o this adjustment is shown in igure 10

• When the volume up button is pressed, the vertical bow changes to right.

• When the volume down button is pressed, the vertical bow changes to le t.

• Press the stand-by button on the remote control to store.

Vertical Amplitude

Adjust the Vertical Amplitude so that the picture is over-scanned.

The e ect o this adjustment is shown in igure 11.

• When the volume up button is pressed, the vertical size o the picture increases.

• When the volume down button is pressed, the vertical size o the picture decreases.

• Press the stand-by button on the remote control to store.

S Correction

Adjust the S Correction so that the picture symmetrical between the top, centre and bottom.

The e ect o this adjustment is shown in igure 12.

• When the volume up button is pressed, the top and bottom scanning increases and the

centre scanning decreases.

Fig.8

Fig.12

Fig.11

Fig.7

Fig.10

Fig.9

32HW-57E

To increase press volume-up button and to decrease press

volume down button.

RED CUT OFF alte «X» coo dinate.

GREEN CUT OFF alte «Y» coo dinate.

BLUE CUT OFF alte «X» and «Y» coo dinates.

Changing NVM Data

To change the data contained within the Non Volatile

Memory, it is necessary to irst select the page the data is

stored in, then the position and inally to change the data

itsel . The procedure below outlines this process.

1. While on ALTER NVM PAGE, use the volume up/down

buttons to change this data (data is shown in hexadecimal

ormat).

2. Press the channel up button and ALTER NVM POSITION

appears, use the volume up/down buttons to change this

data (data is shown in hexadecimal ormat).

3. Press the channel up button and ALTER NVM VALUE

appears, use the volume up/down buttons to change this

data (data is shown in hexadecimal ormat).

4. Once this data has been set, press the standby button to

store.

5. I another NVM value has to be changed, use the channel

down button to select the page or position and repeat as

necessary.

Note:

DO NOT change any NVM data, unless you have been

advised to do so by a Sharp representative. I data is

incorrectly changed, serious damage may occur to the

receiver.

Colour Adjustments

The ollowing adjustments should only be carried out when

the CRT, IC801 or IC801 are replaced.

G2, Cut Off and Gain Adjustments

1 Follow the procedure below to set the G2

1.1 Tune the set to the output o a signal generator

(cross hatch pattern).

1.2 In the user menu, set contrast to 80/100 and

brightness to 40/100.

1.3 Connect the oscilloscope to the red cathode and

adjust G2 to read 155V on the sensor pulse as

in the drawing:

NOTE:

Oscilloscope should be adjusted or vertical TV ield trigger

and synchronized with video signal.

2 Follow the procedure below to set the Cut Off

2.1 Adjust G2.

2.2 Tune a white card.

2.3 Adjust colour to minimum.

2.4 Position colorimeter in the centre o screen.

2.5 Adjust brightness and contrast to obtain a lumi-

nance o ≈20 NITS.

2.6 Operate in Service Mode and select location RED

CUT OFF, GREEN CUT OFF and BLUE CUT

OFF, to obtain colour coordinates:

X=0.290 ± 0.015 Y=0.300 ± 0.015

• When the volume down button is pressed the top and bottom scanning decreases and

the centre scanning increases.

• Press the stand-by button on the remote control to store.

Vertical Shift

Adjust the Vertical Shi t so that the picture is centred.

The e ect o this adjustment is shown in igure 13.

• When the volume up button is pressed, the picture moves down.

• When the volume down button is pressed, the picture moves up.

• Press the stand-by button on the remote control to store.

155 V

CH1 gnd

Fig.13

32HW-57E

Contrast Adjustments

Three types o contrast levels can be varied as listed below:

• TELETEXT MIX MODE CONTRAST

• TELETEXT CONTRAST

• OSD CONTRAST

Use the volume up/down buttons to adjust to a suitable level, then press the standby button to store.

DVCO Adjustment (PAL)

Carry out the DVCO Adjustment (PAL) as shown below:

1. Receive a Phillips pattern signal.

2. While in the DVCO ADJUSTMENT (PAL) menu, press the standby button.

3. The adjustment will be carried out automatically and stored.

DVCO Adjustment (NTSC)

No adjustment required.

Auto Installation On/Off

To return the receiver to the original Auto Installation mode, using the volume up or down button, set the Auto Installation

On/O to On. This setting is automatically stored and when the receiver is turned on the next time it will start up in Auto

Installation mode.

AGC Adjustment

To correctly align the Automatic Gain Control, ollow the procedure outlined below:

1. Tune the set into a pattern generator on CH10.

2. Adjust the signal strength o the pattern generator to 57uV

3. Enter the service mode.

4. Enter the AGC Adjustment menu.

5. Press the standby button on the remote control.

6. The adjustment will be carried out and stored automatically.

AFT Adjustment (BG-I, SECAM L)

To correctly align the Automatic Fine Tune, ollow the procedure outlined below:

1. Tune the set into a pattern generator on CH69.

2. Enter the service mode.

3. Enter the AFT Adjustment menu.

4. Press the standby button on the remote control.

5. The adjustment will be carried out and stored automatically.

AFT Adjustment (SECAM L’)

To correctly align the Automatic Fine Tune, ollow the procedure outlined below:

1. Tune the set into a pattern generator on CH04.

2. Enter the service mode.

3. Enter the AFT Adjustment menu.

4. Press the standby button on the remote control.

5. The adjustment will be carried out and stored automatically.

32HW-57E

LED FLASHING CODES

This model is not provided with stereo led, so to let “ lashing codes” or IC ailures detection when the TV set does not

work, we have answered with the next solution:

• The detection o ailure will be made with an external LED.

• The output o the lashing code will be via AV1 (pin 12).

• Insert a generic led diode between pin 12 and ground (i.e. pin 5, 13 or 21) as shows the below picture.

Follow the sequence according to the in ormation below, as a guide to ault inding.

1. Unable to read or write into NVM: 66% ON, 33% OFF twice and OFF or a second.

2. MSP failure: 66% ON, 33% OFF or three times and OFF or a second.

3. VPC failure: 66% ON, 33% OFF or our times and OFF or a second.

4. SDA failure: 66% ON, 33% OFF or ive times and OFF or a second.

5. DDP failure: 66% ON, 33% OFF or six times and OFF or a second.

NOTE:

I you want to check that the system is working, open resistor R307 to avoid I2C comunication with MSP. The TV set will

lash three times and OFF or a second, showing MSP ailure.

Then the system is working properly.

On O

21 19 17 15 13 11 9 7 5 3 1

20 18 16 14 12 10 8 6 4 2

32HW-57E

CRT MODULE UNIT PRINTED WIRING BOARD (F7269N3) Component side

C895

C891

Q858

Q857

JF5

JF7

Q861

R885

Q860

R874

R882

J10

R881 C865

R866

R886

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C5405

R5447

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(RT)

Q5415

(Q)

R884

C5426

R5449

R5448

C5425

D863

R892

R894

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R1617 D1607

C1610 R1618

R1616

R1615

C1611

R871

L864

J11

R5437

C5418

D5411

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C5419

C850

R5436

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(SVM)

(H)

(K)

R5444

C5422

R5421

R5424

D5405

R5442

C5411

D5403

R5419

C5409

R5418R5417

C5408

R5416

R5445

R5443

C893

R5440

R862

R865

D864

C892

R5439

C855

C851

D869

D868

C863

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R1801

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C853

R851

C883

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R880C880

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R858

R860

C861

FB850

J12

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R883

R875

IC851

C874

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SG863

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D866

D867

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C1613

(MO)

R1622

C1609

R1621

IC1601

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SG864

C869

SG861

R891

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DIGITAL MODULE UNIT PRINTED WIRING BOARD (F7295NOA) Component side

654321

C6083

C6009

C6014

C6016

X1003

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IC6005

Q6003

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Y(A)

6121

112

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(RGB) 41

C6035

C6030

C6027

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64 41

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