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COLOR TELEVISION

Chassis No. CD-A

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.

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

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

LOCATION OF USER'S CONTROL ..................................................................................................... 4

INSTALLATION AND SERVICE INSTRUCTIONS ................................................................................ 5

CHASSIS LAYOUT ............................................................................................................................ 10

BLOCK DIAGRAM ............................................................................................................................. 11

SCHEMATIC DIAGRAMS .................................................................................................................. 12

PRINTED WIRING BOARD ASSEMBLIES ........................................................................................ 15

REPLACEMENT PARTS LIST ........................................................................................................... 18

PACKING OF THE SET ..................................................................................................................... 23

Page

SHARP CORPORATION

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

CONTENTS

SERVICE MANUAL

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

POWER RATING

............................................. 69 W

PICTURE SIZE ....................... 1,194cm

(185sq 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)

ELECTRICAL SPECIFICATIONS

AUDIO POWER

OUTPUT RATING ........... 1.0 W (at 10% distortion)

SPEAKER

SIZE .................................................. 8 cm (Round)

VOICE COIL IMPEDANCE ........... 8 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.

MODELS

19C140

Содержание 19C140

Страница 1: ...er sales service only The contents are subject to change without notice CONTENTS SERVICE MANUAL POWER INPUT 120 V AC 60 Hz POWER RATING 69 W PICTURE SIZE 1 194cm2 185sq 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 Nomi...

Страница 2: ...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 t...

Страница 3: ... mechanical insulators and 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 15mF capacitor in series with all exposed metal cabinet parts and a known earth ground such as electr...

Страница 4: ...4 LOCATION OF USER S CONTROL 19C140 ...

Страница 5: ...f the horizontal oscillator does not stop in step 5 the circuit must be repaired before the set is returned to the customer HIGH VOLTAGE CHECK High voltage is not adjustable but must be checked to verify that the receiver is operating within safe and efficient design limitations as specified checks should be as follows 1 Connect an accurate high voltage meter between ground and anode of picture tu...

Страница 6: ... Use the reset function in the video adjustment menu to ensure customer controls are in their proper reset position 2 Service number selection Once in the service mode press the Ch up or Ch down button on the remote controller or at the set The service adjustment number will vary in increments of one from S01 to OP Select the item you wish to adjust 3 Data number selection Press the Vol up or down...

Страница 7: ...03 No VERTICAL S20 ENERGY SAVE OFFSET 20 00 3F Must be set to 23 S21 D D E OFFSET 03 00 1F Must be set to 03 S22 OSD SETUP 00 00 03 Must be set to 00 S23 TUNER SETUP 00 00 01 Must be set to 00 OP OPTION 30 00 FF Must be set to 02 NECESSARY UNNECESSARY ADJUSTMENT NOTES PART REPLACED IC2001 IC2101 X CRT X IC201 X X Data is stored in IC2101 The adjustment is needed to compensate for characteristics o...

Страница 8: ...aster screen cotrol until the raster darkens to the point where raster is barely seen 7 Adjust the service adjustments S11 red S12 green and S13 blue to obtain a good grey scale with normal whites at low brightness level 8 Select the service adjustment S19 and reset data to 00 Select the service adjustment S03 and reset data to obtain normal color level 9 Remove digital voltmeter and reset the mas...

Страница 9: ... measured with 1000µ V B W or Color signal WAVEFORM MEASUREMENT CONDITIONS 1 Photographs taken on a standard gated color bar signal the tint setting adjusted for proper color The wave shapes at the red green and blue cathodes of the picture tube depend on the tint color level and picture control 2 indicates waveform check points See chart waveforms are measured from point indicated to chassis grou...

Страница 10: ...10 6 5 4 3 2 1 A B C D E F G H CHASSIS LAYOUT NORMAL PR701 C708 19C140 ...

Страница 11: ...11 6 5 4 3 2 1 A B C D E F G H BLOCK DIAGRAM 19C140 ...

Страница 12: ...12 8 7 10 9 6 5 4 3 2 1 A B C D E F G H SCHEMATIC DIAGRAM MAIN 1 Unit 19C140 ...

Страница 13: ...13 17 16 19 18 15 14 13 12 11 10 19C140 ...

Страница 14: ...14 6 5 4 3 2 1 A B C D E F G H SCHEMATIC DIAGRAM CRT Unit 19C140 ...

Страница 15: ...15 6 5 4 3 2 1 A B C D E F G H PWB A MAIN Unit Wiring Side PRINTED WIRING BOARD ASSEMBLIES 19C140 ...

Страница 16: ... G H PWB A MAIN Unit Chip Parts Side n f r n n n n n n n b n n n n n n n f f f f f f f f f f n n r n r n n n b b b b n n r n b r r r n r n r b r r r r r r r r r r n r n n n f f n n n b n n b b b f f f n n n n f n n n n n 19C140 ...

Страница 17: ...17 6 5 4 3 2 1 A B C D E F G H PWB B CRT Unit Chip Parts Side PWB B CRT Unit Wiring Side b b b b b b b b b b b b b b b b b 19C140 ...

Страница 18: ...B p U D651 VHD1SS244 1Y X Diode AB p U D653 RH EX0667GEZZY X Zener Diode 27V AB D661 RH DX0468CEZZ X Diode AB U D701 RH DX0490CEZZY X Diode AB U D702 RH DX0490CEZZY X Diode AB U D703 RH DX0490CEZZY X Diode AB U D704 RH DX0490CEZZY X Diode AB D707 VHD1SS119 1Y X Diode AA D708 VHD1SS119 1Y X Diode AA D709 RH DXA006WJZZ X Diode AB D712 RH DX0487CEZZY X Diode AB D717 RH EX0616GEZZY X Zener Diode 5 6V ...

Страница 19: ...nued PWB A DUNTKA358WEX9 CONTROL EL Electrolytic M Poly Metalized Polypro Film CAPACITORS Ref No Part No Description Code C706 RC KZ0092GEZZA X 3300p AC250V Ceramic AB C717 VCKYPA2HB472K X 4700p 500V Ceramic AB C723 RC EZ0638CEZZ X 33 160V EL AC C725 RC EZ0724CEZZ X 100 160V EL AC C726 VCKYPH3DB561K X 560p 2kV Ceramic AB C727 VCKYPA2HB472K X 4700p 500V Ceramic AB U C730 VCEA0A1CW108M X 1000 16V EL...

Страница 20: ... 1 8W Carbon AA p R655 VRS CY1JF103JY X 10k 1 16W M Ox AA R659 VRN RL3AB3R3J X 3 3 1W M Film AB R661 VRN RL3ABR47J X 0 47 1W M Film AB R662 VRD RA2BE102GY X 1 0k 1 8W Carbon AA U R702 RR DZ0049CEZZY X 3 9M 1 2W Solid AB U R703 VRW KP3HC1R8K X 1 8 5W Cement AB U R705 VRN RL3ABR39J X 0 39 1W M Ox AB U R706 VRN RL3ABR39J X 0 39 1W M Ox AB U R707 VRD RM2HD270JY X 27 1 2W Carbon AA U R708 VRS CY1JF102J...

Страница 21: ... K0202PEZZ X SWITCH AB S2502 QSW K0202PEZZ X SWITCH AB S2503 QSW K0202PEZZ X SWITCH AB S2504 QSW K0202PEZZ X SWITCH AB S2505 QSW K0202PEZZ X SWITCH AB FB351 RBLN 0047CEZZY X FERRITE BEAD AB FB601 RBLN 0047CEZZY X FERRITE BEAD AB FB2002 RBLN 0037CEZZY X FERRITE BEAD AB JA409 RBLN 0047CEZZY X FERRITE BEAD AB Ref No Part No Description Code J903 QJAKE0211CE09 X RCA JACK WHITE AB J905 QJAKE0211CE04 X ...

Страница 22: ...REW CAB AA TINS B244WJZZ X OPERATION MANUAL RRMCG1324CESC X R C GUN AH TCAUS3000GJZZ X CAUTION LABEL AA TGAN A216WJN1 X WARRANTY CARD AB MISCELLANEOUS PARTS SUPPLIED ACCESORRIES SUPPLIED ACCESORRIES PACKING PARTS Ref No Part No Description Code SPAKCB315WJZZ X PACKING CASE SPAKP0102GJZZ X LAMIFOAM AC SPAKX0003GJZZ X PACKING FOAM AG SSAKA0101GJZZ X PLASTIC BAG AB 1 CCABA0108WEJ5 X CAB A ASSY 1 1 No...

Страница 23: ... to fix the top side of packing case Packing Case FRONT Buffer Material Wrapping Paper Polyethylene Bag Operation Manual Infrared R C Unit Batteries MARK Not replacement items Use 10 staples to fix the bottom side of packing case 19C140 ...

Страница 24: ...this publication may be reproduced stored in a retrieval system or transmitted in any form or by any means electronic mechanical photocopying recording or otherwise without prior written permission of the publisher SHARP ELECTRONICA MEXICO S A DE C V Quality Reliability Control Center Blvd SHARP No 3510 Parque Industrial Rosarito Playas de Rosarito México B C 22710 19C140 ...

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