Sharp 20F540 XFlat Page 29 Service Manual Download

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Ref. No. Part No.

Description Code

C818

VCEA0A

4.7

50V

EL.

C819

VCCCCY1HH220JY

22p

50V

Ceramic

C820

VCEA0A

0.47

50V

EL.

C821

VCKYCY1HF153ZY

0.015

50V

Ceramic

C822

VCE9GA

50V

EL.

C823

VCKYCY1HF103ZY

0.01

50V

Ceramic

C824

VCEA0A

330

16V

EL.

C825

VCE9EM X

50V

EL.

C826

VCKYPA

0.01

50V

Ceramic

C827

VCEA9M X

16V

EL.

C828

VCKYPA

0.01

50V

Ceramic

C829

VCEA0A

16V

EL.

C831

VCKYCY1EF104ZY

0.1

25V

Ceramic

C833

VCKYCY1EF104ZY

0.1

25V

Ceramic

C834

VCEA0A

100

16V

EL.

C835

VCEA0A

16V

EL.

C836

VCKYCY1HF103ZY

0.01

50V

Ceramic

C837

VCEA0A

50V

EL.

C839

VCCCCY1HH680JY

68p

50V

Ceramic

C840

VCKYCY1CF474ZY

0.47

16V

Ceramic

C841

VCCCCY1HH101JY

100p

50V

Ceramic

C842

VCEA9M X

0.47

50V

EL.

C843

VCEA9M X

50V

EL.

C845

VCKYCY1CF224ZY

0.22

16V

Ceramic

C846

VCKYCY1HF103ZY

0.01

50V

Ceramic

C847

VCCCCY1HH220JY

22p

50V

Ceramic

C848

VCEA0A

50V

EL.

C1001

VCEA0A

100

6.3V

EL.

C1003

VCEA0A

16V

EL.

C1004

VCKYCY1CF474ZY

0.47

16V

Ceramic

C1006

VCEA0A

2.2

50V

EL.

C1007

VCEA0A

100

16V

EL.

C1008

VCKYCY1HF103ZY

0.01

50V

Ceramic

C1009

VCKYCY1HF103ZY

0.01

50V

Ceramic

C1011

VCKYCY1HB221KY

220p

50V

Ceramic

C1012

VCEA0A

50V

EL.

C1013

VCKYCY1HB102KY

1000p

50V

Ceramic

C1014

VCEA0A

4.7

50V

EL.

C1015

VCCCCY1HH101JY

100p

50V

Ceramic

C1081

VCEA0A

0.1

50V

EL.

C1849

VCFYFA

0.022

50V

Mylar

C1855

VCKYCY1HB561KY

560p

50V

Ceramic

C1856

VCKYCY1HB102KY

1000p

50V

Ceramic

C1861

VCCCCY1HH221JY

220p

50V

Ceramic

C1862

VCKYCY1HB102KY

1000p

50V

Ceramic

C1863

VCCCCY1HH221JY

220p

50V

Ceramic

C1864

VCKYCY1HB102KY

1000p

50V

Ceramic

RJ1

VRS-CY1JF000JY

1/16W

M-Ox.

RJ7

VRS-CY1JF000JY

1/16W

M-Ox.

RJ9

VRS-CY1JF000JY

1/16W

M-Ox.

RJ11

VRS-CY1JF000JY

1/16W

M-Ox.

RJ19

VRS-CY1JF000JY

1/16W

M-Ox.

RJ22

VRS-CY1JF000JY

1/16W

M-Ox.

RJ23

VRS-CY1JF000JY

1/16W

M-Ox.

RJ33

VRS-CY1JF000JY

1/16W

M-Ox.

RJ35

VRS-CY1JF000JY

1/16W

M-Ox.

RJ37

VRS-CY1JF000JY

1/16W

M-Ox.

RJ39

VRS-CY1JF000JY

1/16W

M-Ox.

RJ41

VRS-CY1JF000JY

1/16W

M-Ox.

RJ42

VRS-CY1JF000JY

1/16W

M-Ox.

CAPACITORS

[EL.··· Electrolytic, M-Poly.··· Metalized Polypro Film]

PWB-A: DUNTKB989WEA0

MAIN UNIT

RESISTORS

[M-Ox.··· Metal Oxide, M-Film ··· Metal Film]

Ref. No. Part No.

Description Code

RJ43

VRS-CY1JF000JY

1/16W

M-Ox.

RJ47

VRS-CY1JF000JY

1/16W

M-Ox.

RJ50

VRS-CY1JF000JY

1/16W

M-Ox.

RJ51

VRS-CY1JF000JY

1/16W

M-Ox.

RJ52

VRS-CY1JF000JY

1/16W

M-Ox.

RJ53

VRS-CY1JF000JY

1/16W

M-Ox.

RJ60

VRS-CY1JF000JY

1/16W

M-Ox.

RJ62

VRS-CY1JF000JY

1/16W

M-Ox.

RJ63

VRS-CY1JF000JY

1/16W

M-Ox.

RJ65

VRS-CY1JF000JY

1/16W

M-Ox.

RJ69

VRS-CY1JF000JY

1/16W

M-Ox.

RJ70

VRS-CY1JF000JY

1/16W

M-Ox.

RJ71

VRS-CY1JF000JY

1/16W

M-Ox.

RJ72

VRS-CY1JF000JY

1/16W

M-Ox.

RJ75

VRS-CY1JF000JY

1/16W

M-Ox.

RJ76

VRS-CY1JF000JY

1/16W

M-Ox.

R201

VRS-CY1JF101JY

100

1/16W

M-Ox.

R202

VRS-CY1JF101JY

100

1/16W

M-Ox.

R205

VRS-CY1JF680JY

1/16W

M-Ox.

R206

VRS-CY1JF122JY

1.2k

1/16W

M-Ox.

R207

VRS-CY1JF221JY

220

1/16W

M-Ox.

R208

VRS-CY1JF331JY

330

1/16W

M-Ox.

R209

VRS-CY1JF392JY

3.9k

1/16W

M-Ox.

R216

VRS-VV3LB333J

33k

M-Ox.

R220

VRS-CY1JF221JY

220

1/16W

M-Ox.

R301

VRS-CY1JF102JY

1/16W

M-Ox.

R302

VRN-VV3DB1R2J

1.2

M-Film

R303

VRS-CY1JF103JY

10k

1/16W

M-Ox.

R304

VRD-RA2BE683JY

68k

1/8W

Carbon

R305

VRS-CY1JF274JY

270k

1/16W

M-Ox.

R307

VRS-CY1JF222JY

2.2k

1/16W

M-Ox.

R308

VRS-CY1JF392JY

3.9k

1/16W

M-Ox.

R310

VRS-CY1JF473JY

47k

1/16W

M-Ox.

R311

VRD-RA2BE272JY

2.7k

1/8W

Carbon

R314

VRS-CY1JF392JY

3.9k

1/16W

M-Ox.

R315

VRS-CY1JF222JY

2.2k

1/16W

M-Ox.

R362

VRS-CY1JF332JY

3.3k

1/16W

M-Ox.

R363

VRS-CY1JF564JY

560k

1/16W

M-Ox.

R364

VRS-CY1JF332JY

3.3k

1/16W

M-Ox.

R365

VRS-CY1JF564JY

560k

1/16W

M-Ox.

R381

VRS-CY1JF564JY

560k

1/16W

M-Ox.

R382

VRS-CY1JF332JY

3.3k

1/16W

M-Ox.

R383

VRS-CY1JF564JY

560k

1/16W

M-Ox.

R384

VRS-CY1JF332JY

3.3k

1/16W

M-Ox.

R431

VRS-CY1JF101JY

100

1/16W

M-Ox.

R432

VRS-CY1JF750JY

1/16W

M-Ox.

R433

VRS-CY1JF750JY

1/16W

M-Ox.

R434

VRS-CY1JF750JY

1/16W

M-Ox.

R435

VRS-CY1JF750JY

1/16W

M-Ox.

R437

VRS-CY1JF101JY

100

1/16W

M-Ox.

R461

VRS-CY1JF750JY

1/16W

M-Ox.

R462

VRS-CY1JF101JY

100

1/16W

M-Ox.

R502

VRS-RG

M-Ox.

R503

VRN-RL

1.2

M-Film

R504

VRS-CY1JF222JY

2.2k

1/16W

M-Ox.

R506

VRS-RG

330

M-Ox.

R507

VRD-RM2HD1R0JY

1/2W

Carbon

R513

VRD-RM2HD333JY

33k

1/2W

Carbon

R514

VRD-RM2HD682JY

6.8k

1/2W

Carbon

R520

VRS-CY1JF123JY

12k

1/16W

M-Ox.

R522

VRS-CY1JF101JY

100

1/16W

M-Ox.

R523

VRD-RA2BE101JY

100

1/8W

Carbon

R524

VRD-RA2BE103JY

10k

1/8W

Carbon

R525

VRD-RA2BE122JY

1.2k

1/8W

Carbon

R526 VRD-RA2BE101JY X 100 1/8W Carbon AA
R528 VRS-CY1JF683JY X 68k 1/16W M-Ox. AA
R602 VRD-RA2BE393JY X 39k 1/8W Carbon AA
R603 VRD-RA2BE273JY X 27k 1/8W Carbon AA
R604 VRD-RA2BE473JY X 47k 1/8W Carbon AA

20F540

Summary of Contents for 20F540 XFlat

Page 1: ...DIAGRAM 17 WAVEFORMS 18 SCHEMATIC DIAGRAMS 19 PRINTED WIRING BOARD ASSEMBLIES 24 REPLACEMENT PARTS LIST 27 PACKING OF THE SET 34 CONTENTS SPEAKER SIZE 5 x 12 cm 2pcs VOICE COIL IMPEDANCE 16 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 POWER INPUT AC 120 V 60 Hz POWER RATI...

Page 2: ...to be certain that the high voltage does not exceed the specified value and that it is regulating correctly 5 Do not use a picture tube other than that specified or make unrecommended circuit modifications to the high voltage circuitry 6 When trouble shooting and taking test measurements on a receiver with excessive high voltage avoid being unnecessarily close to the receiver Do not operate the re...

Page 3: ...ks mechanical insulators etc 3 To be sure that no shock hazard exists check for leakage current in the following manner Plug the AC cord directly into a 120 volt AC outlet Do not use an isolation transformer for this test Using two clip leads connect a 1 5k ohm 10 watt resistor paralleled by a 0 15µF capacitor in series with all exposed metal cabinet parts and a known earth ground such as electric...

Page 4: ...turns to previous channel PERSONAL PREFERENCE With the Personal Preference buttons you can prog ram your favorite programs by using the 4 categories A B C and D The channels can be accessed quic kly by using these buttons VOLUME UP DOWN Increases sound Decreases sound In menu mode changes or selects the TV adjustments MENU Press Accesses MAIN MENU Press again Exits MAIN MENU CATV DVD TV VCR MODE S...

Page 5: ... operation of the horizontal oscillator does not stop in step 5 the circuit must be repaired before the set is returned to the customer HIGH 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 o...

Page 6: ... as follows by key input MENU SERVICE MODE 6 AFT processing is disabled during service mode PLL setting data is set to fo data 7 All user data are set to default during service mode FAO and SPEAKER user settings are off and on respectively in service mode Energy Save is off 8 Sleep timer View timer and Off timer are inactivated in Service mode 9 Sound is muting in service mode except at Adjustment...

Page 7: ...27 64 V18 CC POS Micron 0 255 32 V19 Vertical mode 1 Chip V MUTE SERVICE 0 1 2 0 V20 SUB VOL 1 Chip A ATT 0 127 127 V21 H VCO 1 Chip H VCO 0 7 4 M01 MTS ATT MTS ATT 0 15 10 M02 MTS VCO MTS VCO 0 63 32 M03 MTS FILTER MTS FILTER 0 63 28 M04 MTS WIDEBAND MTS WIDEBAND 0 63 27 M05 MTS SPECTRAL MTS SPECTRAL 0 63 32 M06 SUB VOL MTS VOL 0 63 63 ADJUSTMENT METHOD Caution to get into the service mode one of...

Page 8: ...5 Increase RF AGC 1chip data when AFT input voltage is at max 0 3V point adjustment is completed 6 When adjustment completed OSD display and RF AGC self adjustment status data of EEPROM are updated 7 Intelligent monitor output and IM input mode are recovered PIF VCO 1 When there is PIF VCO self adjustment key input for adjustment item PIF VCO self adjustment is performed 2 VIF DEF 1chip is set to ...

Page 9: ...RI OFFSET 32 32 0 F23 B DRI B OFFSET B DRI OFFSET 32 32 0 F24 V FREE 1chip V FREE 0 1 0 F25 GAMMA 1chip GAMMA 0 3 0 F26 TRAP TV 1chip TRAP FINE 0 3 2 F27 TRAP AV 1chip TRAP FINE 0 3 2 F28 H FREE 1chip H FREE 0 1 0 F29 1W TV 1chip V Window 0 1 0 F30 1W AV 1chip V Window 0 1 0 F31 YLPF 1chip YSW LPF 0 1 1 F32 BS D 1chip BS DISCHARGE 0 3 0 F33 BS C 1chip BS CHARGE 0 3 0 F34 SL TV 1chip S SLICE DOWN 0...

Page 10: ...V COL COL TEMP 1 O12 COMPONENT Without COMPONENT With COMPONENT 1 O13 AV Without AV With AV 1 O14 AV2 AV1 system AV2 system 1 O15 MTS Without MTS With MTS 1 O16 TONE CTRL Without S ADJ With S ADJ 1 O17 AUTO OFF Without AUTO OFF With AUTO OFF 1 O18 INIT LANG ENGLISH SPANISH 1 O19 SETUP FLAG NO SETUP AUTO SETUP 1 O20 FR AV Front 3 Rear AV 3 Display FRONT A V INPUTS and REAR A V INPUTS in DEMO mode 2...

Page 11: ...11 MODEL 20F540 CHASSIS LAYOUT 20F540 ...

Page 12: ...12 MODEL 20F540 BLOCK DIAGRAM CRT Unit 20F540 ...

Page 13: ...13 MODEL 20F540 BLOCK DIAGRAM MAIN Unit 20F540 ...

Page 14: ...20F540 14 ...

Page 15: ...15 MODEL 20F540 BLOCK DIAGRAM MTS MODULE Unit 20F540 ...

Page 16: ...20F540 16 ...

Page 17: ...tages 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...

Page 18: ...Vp p Vert Rate 7 6 56 Vp p Horiz Rate 8 6 40 Vp p Horiz Rate 9 4 88 Vp p Horiz Rate 0 158 Vp p Horiz Rate q 1140 Vp p Horiz Rate w 48 Vp p Vert Rate e 3 8 Vp p Vert Rate r 118 Vp p Horiz Rate t 440 Vp p Horiz Rate y 5 04 Vp p Horiz Rate u 5 12 Vp p Vert Rate i 112 8 Vp p Horiz Rate o 94 4 Vp p Horiz Rate p 109 6 Vp p Horiz Rate 20F540 ...

Page 19: ...19 8 7 10 9 6 5 4 3 2 1 A B C D E F G H SCHEMATIC DIAGRAM MAIN 1 Unit 20F540 ...

Page 20: ...17 17 19 18 15 14 13 12 11 10 16 20F540 ...

Page 21: ...21 8 5 4 3 2 1 A B C D E F G H SCHEMATIC DIAGRAM MTS MODULE 10 9 7 6 20F540 ...

Page 22: ...22 19 18 17 16 15 14 13 12 11 10 20F540 ...

Page 23: ...23 6 5 4 3 2 1 A B C D E F G H SCHEMATIC DIAGRAM CRT Unit 20F540 ...

Page 24: ...24 6 5 4 3 2 1 A B C D E F G H PRINTED WIRING BOARD ASSEMBLIES PWB A MAIN Unit Wiring Side 20F540 ...

Page 25: ...1 0 1 1 C1 0 0 8 RJ 1 7 R1 0 5 1 D1 0 8 5 D1 0 8 6 C1 0 1 0 C1 0 0 9 R8 1 4 R1 0 6 1 R1 0 4 6 R1 0 4 8 R1 0 4 9 R1 0 6 0 Q8 0 3 R1 0 6 2 R1 0 4 7 F DC3 C1 8 5 5 R1 0 6 3 C8 1 5 I C1 0 0 1 R8 4 2 R8 1 1 R8 1 3 C8 1 6 C8 1 4 R8 1 0 R1 0 3 3 R1 0 6 6 C8 1 3 R1 0 6 7 C8 1 2 C8 1 1 R1 0 6 9 R8 0 7 R8 3 8 R1 0 6 4 R1 0 6 5 R1 0 7 1 RJ 3 3 D8 1 2 R1 0 6 8 D8 1 1 R1 8 5 3 RJ 6 9 R1 0 3 7 D1 0 9 0 R8 0 6 R...

Page 26: ...1 7 R3 0 1 4 I C3 0 0 1 R3 0 2 5 R3 0 1 3 RJ 1 6 C3 0 0 2 R3 0 0 3 C3 0 2 3 C3 0 2 4 R3 0 0 4 C3 0 2 6 C3 0 3 1 C3 0 2 5 C3 0 2 8 C3 0 3 2 C3 0 3 3 C3 0 2 7 RJ 9 R3 0 0 2 R3 0 3 6 RJ 2 RJ 7 R3 0 0 1 RJ 1 4 RJ 1 5 RJ 1 3 R3 0 3 3 RJ 8 R3 0 8 4 Q3 0 0 7 R3 0 8 5 Q3 0 0 6 R3 0 8 3 R3 0 8 2 Q3 0 0 4 R3 0 3 4 R3 0 1 6 R3 0 2 9 R3 0 2 6 R3 0 1 8 R3 0 1 9 C3 0 4 3 R3 0 3 5 RJ 6 Q3 0 0 1 R3 0 3 2 R3 0 2 8...

Page 27: ...IC703 VHISE130N F X SE130N AD IC801 VHIM61251AF1EQ X M61251AFP AN IC1001 RH IXA155WJN4 X IXA155WJ AP IC1003 VHIBR24L16F 1Y X BR24L16F AC Q201 VS2SC2735 1EY X 2SC2735 AB Q302 VS2SD601AR 1Y X 2SD601AR AB Q601 VS2SC2482 1 X 2SC2482 AB Q602 VS2SD2539 1E X 2SD2539 AG Q603 VS2SC3198 G 1 X 2SC3198 G AB Q604 VS2SD601AR 1Y X 2SD601AR AB U Q701 VSSTP6NC80Z1E X STP6NC80Z AF Q703 VS2SC3198 Y 1 X 2SC3198 Y AB ...

Page 28: ... EL AB C4XX VCKYPA1HF103Z X 0 01 50V Ceramic AA C505 VCEA0A1HW107M X 100 50V EL AB C508 VCFYAA2AA224J X 0 22 100V M Poly AB C509 VCKYD41CY103NY X 0 01 16V Ceramic AB C511 VCEA0A1VW477M X 470 35V EL AB C512 VCKYPA2HB102K X 1000p 500V Ceramic AB C513 RC EZA332WJZZ X 1000 35V EL AB C514 VCFYSA1JB273J X 0 027 63V M Poly AB C515 VCEACA1HC335J X 3 3 50V EL AB C518 VCKYCY1HF103ZY X 0 01 50V Ceramic AA C5...

Page 29: ...Y1JF000JY X 00 1 16W M Ox AA RJ47 VRS CY1JF000JY X 00 1 16W M Ox AA RJ50 VRS CY1JF000JY X 00 1 16W M Ox AA RJ51 VRS CY1JF000JY X 00 1 16W M Ox AA RJ52 VRS CY1JF000JY X 00 1 16W M Ox AA RJ53 VRS CY1JF000JY X 00 1 16W M Ox AA RJ60 VRS CY1JF000JY X 00 1 16W M Ox AA RJ62 VRS CY1JF000JY X 00 1 16W M Ox AA RJ63 VRS CY1JF000JY X 00 1 16W M Ox AA RJ65 VRS CY1JF000JY X 00 1 16W M Ox AA RJ69 VRS CY1JF000JY ...

Page 30: ...7 VRS CY1JF473JY X 47k 1 16W M Ox AA R818 VRS RG3AB151J X 150 1W M Ox AB R823 VRD RA2BE101JY X 100 1 8W Carbon AA R824 VRD RA2BE101JY X 100 1 8W Carbon AA R826 VRD RA2BE101JY X 100 1 8W Carbon AA R827 VRS CY1JF102JY X 1k 1 16W M Ox AA R828 VRS CY1JF471JY X 470 1 16W M Ox AA R829 VRS CY1JF472JY X 4 7k 1 16W M Ox AA R830 VRS CY1JF393JY X 39k 1 16W M Ox AA R831 VRS CY1JF271JY X 270 1 16W M Ox AA R832...

Page 31: ...e M Film Metal Film SWITCHES FERRITE BEAD MISCELLANEOUS PARTS Ref No Part No Description Code Q854 VS2SC3789 2E X 2SC3789 AB Q855 VS2SC3789 2E X 2SC3789 AB Q894 VS2SA1015Y 1E X 2SA1015Y AB L851 VP MK820K0000 X Peaking 82mH AB C851 VCKYPA1HB221K X 220p 50V Ceramic AA C852 VCKYPA1HB221K X 220p 50V Ceramic AA C853 VCKYPA1HB221K X 220p 50V Ceramic AA C880 RC KZ0153CEZZ X 1000p 3kV Ceramic AB C893 VCEA...

Page 32: ...16W M Ox AA R3013 VRS CY1JF102JY X 1k 1 16W M Ox AA R3014 VRS CY1JF102JY X 1k 1 16W M Ox AA R3016 VRS CY1JF102JY X 1k 1 16W M Ox AA R3018 VRS CY1JF102JY X 1k 1 16W M Ox AA R3019 VRS CY1JF102JY X 1k 1 16W M Ox AA R3021 VRS CY1JF102JY X 1k 1 16W M Ox AA R3024 VRS CY1JF000JY X 00 1 16W M Ox AA R3025 VRS CY1JF272JY X 2 7k 1 16W M Ox AA R3026 VRS CY1JF331JY X 330 1 16W M Ox AA R3027 VRS CY1JF392JY X 3 ...

Page 33: ...FOAM AK SSAKA0101GJZZ X PLASTIC BAG AB PACKING PARTS NOT REPLACEMENT ITEM Ref No Part No Description Code 1 CCABAA323WEH9 X Front Cabinet Ass y 1 1 Front Cabinet 1 2 HBDGB3155CESA X SHARP Badge AD 1 3 HDECQA119WJSA X LED RC Cover AC 1 4 JBTN A070WJKC X Power Button 1 5 MSPRC0005PEFW X Power Button Spring AA 1 6 GDORFA015WJKC X door 1 7 MSPRPA012WJFW X Door Spring AB 1 8 HINDPA194WJSA X Indication ...

Page 34: ...34 PACKING OF THE SET 20F540 ...

Page 35: ...20F540 35 ...

Page 36: ...ans electronic mechanical photocopying recording or otherwise without prior written permission of the publisher QRC0014 U March 2004 Modify SEMEX J B Design and Production Information Design SEM Production SEMEX 20F540 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 ...

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