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Sharp 21XF30 Service Manual
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Sharp 21XF30 Service Manual

Colour television chassis no. uaf
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In the interests of user-safety (Required by safety regulations in some countries) the set should be re-
stored to its original condition and only parts identical to those specified should be used.
Ë World Multi 21 System(21XF50)
Ë NICAM/A2 (21XF50)
Ë Mono Bilingual (21XF30)
Ë AV Stereo (21XF30)
Ë Full Auto Search System
Ë 100-CH Program Memory
Ë CATV (Hyper Band) Ready
Ë Surround System
» SPECIFICATIONS ........................................... 2
» IMPORTANT SERVICE NOTES ...................... 2
» ADJUSTMENT PRECAUTIONS ..................... 3
» MEMORY MAP .............................................. 13
» HOTEL MODE APPLICATION ...................... 19
» TROUBLE SHOOTING TABLE ...................... 20
» CHASSIS LAYOUT ........................................ 24
» BLOCK DIAGRAM ......................................... 26
» WAVEFORMS ............................................... 31
MAIN UNIT ............................................... 32
The chassis in this receiver is partially hot. Use an isolation transformer 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. Refer servicing to qualified service personnel.

SERVICE MANUAL

FEATURE
Ë English & Thailand Language OSD
Ë ON/OFF/Reminder Timer
Ë High Contrast Picture (Black Stretch Circuit)
Ë Colour Comb Filter (NTSC only)
Ë Blue Back Noise Mute
Ë Front AV IN/ Rear AV IN/OUT Terminal
Ë Hotel Mode
CONTENTS
Page
» PACKING OF THE SET ................................... 56
WARNING

SHARP CORPORATION

COLOUR TELEVISION
Chassis No. UAF
MODELS
CRT UNIT ................................................. 38
NICAM/A2 UNIT(21XF50) ........................ 40
ELECTRICAL PARTS ............................... 48
MISCELLANEOUS PARTS ...................... 54
SUPPLIED ACCESSORIES ..................... 54
PACKING PARTS ..................................... 54
CABINET PARTS ..................................... 55
21XF30
21XF50
S42H621XF30//
21XF30
21XF50
Page

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Summary of Contents for Sharp 21XF30

  • Page 1: Table Of Contents

    Page » SPECIFICATIONS ........... 2 CRT UNIT ..........38 » IMPORTANT SERVICE NOTES ...... 2 MONO BILLINGUAL UNIT(21XF30) ..39 » ADJUSTMENT PRECAUTIONS ..... 3 NICAM/A2 UNIT(21XF50) ......40 » MEMORY MAP ..........13 » HOTEL MODE APPLICATION ...... 19 »...

  • Page 2: Specifications

    21XF30 21XF50...

  • Page 3: Adjustment Precautions

    21XF30 21XF50...
  • Page 4 21XF30 21XF50...
  • Page 5 21XF30 21XF50...
  • Page 6 21XF30 21XF50...
  • Page 7 21XF30 21XF50...
  • Page 8 21XF30 21XF50...
  • Page 9 21XF30 21XF50...
  • Page 10 21XF30 21XF50...
  • Page 11 21XF30 21XF50...
  • Page 12 21XF30 21XF50...

  • Page 13: Memory Map

    21XF30 21XF50...
  • Page 14 21XF30 21XF50...
  • Page 15 21XF30 21XF50...
  • Page 16 21XF30 21XF50...
  • Page 17 21XF30 21XF50...
  • Page 18 21XF30 21XF50...

  • Page 19: Hotel Mode Application

    21XF30 21XF50...

  • Page 20: Trouble Shooting Table

    21XF30 21XF50...
  • Page 21 21XF30 21XF50...

  • Page 22: Solid State Device Base Diagram

    21XF30 21XF50 SOLID STATE DEVICE BASE DIAGRAM TOP VIEW COLLECTOR COLLECTOR :BG: BASE EMITTER BASE EMITTER M24C08W B709A FX0008GE D601A COLLECTOR BASE EMITTER iX3411CEN5 2SC2735 AN5891 M52797 SIDE VIEW BASE COLLECTOR BASE EMITTER COLLECTOR EMITTER 2SC1815 2SC2482 SE120N DX0111PE 2SA1015...
  • Page 23 21XF30 21XF50 - M E M O -...

  • Page 24: Chassis Layout

    21XF30 21XF50 CHASSIS LAYOUT(21XF30)
  • Page 25 21XF30 21XF50 CHASSIS LAYOUT(21XF50)

  • Page 26: Block Diagram

    21XF30 21XF50 BLOCK DIAGRAMS MAIN 1 UNIT (21XF30)
  • Page 27 21XF30 21XF50...
  • Page 28 21XF30 21XF50 MAIN 1 UNIT (21XF50)
  • Page 29 21XF30 21XF50...
  • Page 30 21XF30 21XF50 CRT UNIT (21XF50) CRT UNIT (21XF30) NICAM/A2 UNIT (21XF50) MONO-BILLINGUAL UNIT (21XF30)

  • Page 31: Waveforms

    21XF30 21XF50 WAVEFORMS 2) 4.08 Vp-p 1) 0.98 Vp-p 3) 3.68 Vp-p 4) 4.2 Vp-p 6) 107.2 Vp-p 5) 88.8 Vp-p Horiz Rate Horiz Rate Horiz Rate Horiz Rate Horiz Rate Horiz Rate 10) 138 Vp-p 7) 109.6 Vp-p 8) 3.32 Vp-p 9) 2.28 Vp-p...

  • Page 32: Schematic Diagram

    21XF30 21XF50 SCHEMATIC DIAGRAM MAIN UNIT-1 : 21XF30...
  • Page 33 21XF30 21XF50...
  • Page 34 21XF30 21XF50 MAIN UNIT-1 : 21XF50...
  • Page 35 21XF30 21XF50...
  • Page 36 21XF30 21XF50 MAIN UNIT-2 : 21XF30...
  • Page 37 21XF30 21XF50 MAIN UNIT-2 : 21XF50...

  • Page 38: Crt Unit

    21XF30 21XF50 CRT UNIT: 21XF30 CRT UNIT: 21XF50...

  • Page 39: Mono Billingual Unit(21Xf30)

    21XF30 21XF50 MONO BILLINGUAL UNIT : 21XF30...

  • Page 40: Nicam/A2 Unit(21Xf50)

    21XF30 21XF50 NICAM/A2 UNIT : 21XF50...
  • Page 41 21XF30 21XF50...

  • Page 42: Printed Wiring Board Assemblies

    21XF30 21XF50 PRINTED WIRING BOARD ASSEMBLIES PWB-A: MAIN Unit (Component Side)
  • Page 43 21XF30 21XF50...
  • Page 44 21XF30 21XF50 PWB-A: MAIN Unit (Chip Parts Side)
  • Page 45 21XF30 21XF50...
  • Page 46 21XF30 21XF50 PWB-B: CRT Unit (Component Side) Component Side Chip Parts Side PWB-C: NICAM/A2 Unit (21XF50)
  • Page 47 21XF30 21XF50 PWB-D: MONO-BILLINGUAL Unit (Component Side)

  • Page 48: Replacement Parts List

    (NOT REPLACEMENT ITEM) D404 RH-EX0867CEZZ R Zener Diode D502 RH-EX0654CEZZ R Zener Diode D504 RH-DX0048GEZZ R DX0048GE PWB-A DUNTKA200WET2 - Main Unit(21XF30) — D505 RH-DX0295CEZZ R DX0295CE PWB-A DUNTKA200WET3 - Main Unit(21XF50) — D506 RH-DX0295CEZZ R DX0295CE PWB-B DUNTK9990WET9 - CRT Unit —...
  • Page 49 VCQYTA1HM103J R 0.01 50V Mylar L209 VP-XF6R8K0000 R Peaking, 6.8µH(21XF50) C355 VCEA0A1CW106M R 10 16V Electrolytic L209 VP-XF100K0000 R Peaking, 10µH(21XF30) C356 VCKYCY1HB682K R 6800p 50V Ceramic L210 VP-XF120K0000 R Peaking, 12µH(21XF50) C357 VCKYCY1HB182K R 1800p 50V Ceramic L211 VP-CF270K0000 R Peaking, 27µH(21XF50)
  • Page 50 21XF30 21XF50 Ref. No. Part No. Description Code Ref. No. Part No. Description Code C382 VCKYCY1EF104Z R 0.1 25V Ceramic C708 RC-KZ0029CEZZ R 0.01 250V Ceramic C383 VCEA0A1CW227M R 220 16V Electrolytic C709 VCQYTA1HM471J R 470p 50V Mylar C384 VCEA0A1HW105M R 1...
  • Page 51 21XF30 21XF50 Ref. No. Part No. Description Code Ref. No. Part No. Description Code RJ47 VRS-CY1JF000J 1/16W Metal Oxide R316 VRS-CY1JF332J R 3.3k 1/16W Metal Oxide RJ55 VRS-CY1JF000J 1/16W Metal Oxide R318 VRS-CY1JF102J R 1k 1/16W Metal Oxide RJ57 VRS-CY1JF000J...
  • Page 52 21XF30 21XF50 Ref. No. Part No. Description Code Ref. No. Part No. Description Code R809 VRD-RA2BE394J R 390k 1/8W Carbon R602 VRN-RV3ABR82J R 0.82 1W Metal Film R810 VRS-CY1JF000J 1/16W Metal Oxide R603 VRD-RM2HD102J R 1k 1/2W Carbon R604 VRD-RA2BE393J...
  • Page 53 21XF30 21XF50 Ref. No. Part No. Description Code Ref. No. Part No. Description Code P882 QPLGN0561CEZZ R Plug, 5Pin CN801 QCNW-2446PEZZ R Connecting Cord å SC882 å FH701 QSOCV0016PEZZ R Socket, 11Pin QFSHD1013CEZZ R Fuse Holder å FH702 QFSHD1014CEZZ R Fuse Holder å...

  • Page 54: Miscellaneous Parts

    TLABM0175KJZZ - Model Label(21XF50) — SLD2302 PSLDM0261PEFW R Shield TLABN0148CEZZ - Serial Label — P2300 QPLGZ0610CEZZ R Plug, 6Pin TLABV0125KJZZ - Bar Code Label(21XF30) — P2301 QPLGZ0810CEZZ R Plug, 8Pin TLABV0126KJZZ - Bar Code Label(21XF50) — TLABZ0130KJZZ - Label(21XF30) —...

  • Page 55: Cabinet Parts

    Front Cabinet Ass'y Not Avairable - Front Cabinet — JBTN-0395PESA R Power Button MSPRC0005PEFW R Power Spring GCOVA0145PESA R R/C Cover HBDGB3142CESA R SHARP Badge GDORF0196PESA R Door PKAi-0007PE00 R Door Latch HiNDP0294PESA R Indication Plate CCABB2463WEA0 Rear Cabinet Ass'y...

  • Page 56: Packing Of The Set

    21XF30 21XF50 Ref. No. Part No. Description Code Ref. No. Part No. Description Code PACKING OF THE SET Polystyrene Bag Buffer Material Operation Manual Batteries SPAKP0697CEZZ Wrapping Paper & Polyethylene Bag Infrared Remote Control Unit SPAKX0092KJZZ SPAKX0093KJZZ Buffer Material SPAKC0141KJZZ...
  • Page 57 21XF30 21XF50 Ref. No. Part No. Description Code Ref. No. Part No. Description Code...
  • Page 58 Code Ref. No. Part No. Description Code COPYRIGHT C 2002 BY SHARP CORPORATION ALL RIGHTS RESERVED. No part of 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.

This manual is also suitable for:

21xf50

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