Sharp TU-DTV1000/A Service Manual
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Sharp TU-DTV1000/A Service Manual

Sharp TU-DTV1000/A Service Manual

Atsc digital television system dtv decoder
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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.
• SPECIFICATIONS .............................................. 2
• NOTE TO SERVICE PERSONNEL .................... 4
• OPERATION MANUAL ...................................... 5
• REMOVING OF MAJOR PARTS ........................ 8
• TROUBLE SHOOTING TABLE ........................ 13
• SERVICE ADJUSTMENT ................................. 17
• CHASSIS LAYOUT .......................................... 23
• BLOCK DIAGRAM ........................................... 25
• OVERALL WIRING DIAGRAM ......................... 27
SHARP CORPORATION
SERVICE MANUAL
ATSC DIGITAL TELEVISION SYSTEM
DTV DECODER
TU-DTV1000/A
MODEL
CONTENTS
Page
• SCHEMATIC DIAGRAM ................................... 30
Ë ELECTRICAL PARTS ................................. 93
Ë ACCESSORIES PARTS ........................... 113
Ë PACKING PARTS ..................................... 113
• PACKING OF THE SET ................................. 114
This document has been published to be used for
after sales service only.
The contents are subject to change without notice.
1
TU-DTV1000/A
S08Y6TU-DTV10
Page

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  • Page 1: Table Of Contents

    TU-DTV1000/A SERVICE MANUAL S08Y6TU-DTV10 ATSC DIGITAL TELEVISION SYSTEM DTV DECODER TU-DTV1000/A MODEL 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.

  • Page 2: Specifications

    TU-DTV1000/A Specifications Product Type DTV Decoder Model TU-DTV1000 Video System ATSC Digital television system Receiving Frequency VHF : Low 54~88MHz, High 174~216MHz UHF : 470~806MHz Antenna Input 75Ω unbalanced Video Output Signal 1080i(HDTV) » 5BNC Output R.G.B : 1.0Vp-p (Trilevel Sync On), 75Ω...

  • Page 3: Important Service Safety Notes

    TU-DTV1000/A IMPORTANT SERVICE SAFETY NOTES Ë Service work should be performed only by qualified service technicians who are thoroughly familiar with all safety checks and servicing guidelines as follows: » Use an AC voltmeter with sensitivity of 5000 ohm per WARNING volt., or higher, sensitivity to measure the AC voltage...
  • Page 4 TU-DTV1000/A WARNING: TO REDUCE THE RISK OF FIRE OR ELECTRIC SHOCK, DO NOT EXPOSE THIS UNIT TO MOISTURE OR WET LOCATIONS. CAUTION The lighting flash with arrowhead within a triangle is intended to tell the user that RISK OF ELECTRIC SHOCK.
  • Page 5 TU-DTV1000/A CONTROL OPERATION QUICK REFERENCE...
  • Page 6 TU-DTV1000/A REAR TERMINALS...

  • Page 7: Basic Operation

    TU-DTV1000/A BASIC OPERATION...

  • Page 8: Removing Of Major Parts

    TU-DTV1000/A REMOVING OF MAJOR PARTS 1. Removing the top cabinet 1-1. Remove the four lock screws off the right and left sides of the top cabinet. 1-2. Remove the five lock screws off the back of the top cabinet. Slide the top cabinet toward yourself and detach...
  • Page 9 TU-DTV1000/A 2. Removing the front cabinet and PWBs 2-1. Remove the three lock screws off the front cabinet. Undo the three hooks at the bottom and detach the front cabinet. 2-2. Remove the three lock screws and take out the Operation unit PWB.
  • Page 10 TU-DTV1000/A 3. Removing the ATV-1 and ATV-2 unit PWBs 3-1. Remove the nine lock screws off the terminals on the back. 3-2. Disconnect the connectors of the ATV-1 and ATV-2 unit PWBs. 3-3. Remove the eight lock screws off the ATV-1 unit PWB. Disconnect the terminals from the bottom cabinet. Lift and detach the ATV-1 unit PWB.
  • Page 11 TU-DTV1000/A 4. Removing the Main power and Sub-power unit PWBs 4-1. Remove the two lock screws off the Sub-power unit PWB bracket. 4-2. Remove the five lock screws off the Sub-power unit PWB. Detach the sub-power unit PWB from its bracket.
  • Page 12 1 QCNW-5142CEZZ P5401 2 QCNW-5143CEZZ 3 QCNW-5144CEZZ 4 QCNW-5145CEZZ 5 QCNW-5146CEZZ 6 QCNW-5147CEZZ 7 QCNW-5148CEZZ DUNTK9710DE01 (Wiring Side) SC5411 SC5409 DUNTK9712DE02 P5772 DUNTK9713DE01 P5214 P5213 SC5013 SC5103 P5982 DUNTK9709DE01 P5981 (Chip Parts Side) RDENC0282CEZZ DUNTK9711DE01 P5216 P5984...

  • Page 13: Trouble Shooting Table

    TU-DTV1000/A TROUBLE SHOOTING TABLE No power (Unit’s power LED failure to light up) » Make sure the AC cord is plugged in. Is the unit switched on using the unit’s power switch or the R/C unit? (No power with the...

  • Page 14: Operation Manual

    TU-DTV1000/A TROUBLE SHOOTING TABLE (Continued) No video output, no audio output First make sure of the following points. » The AC power cable is plugged in. » The power is switched on and the unit’s power LED stays on. » The output mode switch is properly set according to a monitor to be connected.
  • Page 15 TU-DTV1000/A TROUBLE SHOOTING TABLE (Continued) Check the LEDs (D5023, D5024 and D5025) on the ATV-1 PWB. Does the D5023 light up in green? A DTV signal (available in the selected channel) is There is no DTV signal for the selected channel.
  • Page 16 TU-DTV1000/A TROUBLE SHOOTING TABLE (Continued) Images in a certain input format or from a certain output terminal are poor. Errors in main NTSC system output only (no problem with Errors in main HDTV and Errors in NTSC record Errors in 480I format input HDTV system output) 480P system output only.

  • Page 17: Service Adjustment

    TU-DTV1000/A SERVICE ADJUSTMENT Precaution: When the set has been disassembled and repaired, be sure to place all the copper tapes and filters back into position to keep against unintended radiation. Ë Serviceman mode This model is equipped with the serviceman mode for a repairman to get the information that is effective in servicing the set in the field.

  • Page 18: Service Mode

    TU-DTV1000/A Ë Service mode DTV stands for digital television broadcast. In analog broadcast, the worse the reception condition gets, the more noises and ghosts occur on the screen. In digital broadcast, on the other hand, there is no degraded images up to a certain level.
  • Page 19 TU-DTV1000/A PACKET ERROR : Indicates the current reception condition by displaying, in bars and figures, the number of errors of the data received for a certain period of time. This helps estimate the antenna condition, signal level and other data.
  • Page 20 TU-DTV1000/A Ë Check mode In this mode, the basic performance of the hardware that is connected with the main microprocessor (SH3) is checked up. The check results are displayed on the screen. 1) Check mode screen and switching There are three screens for the check mode. Press the SELECT key on the set or the R/C unit, and at each push the three screens get switched one after the other.
  • Page 21 TU-DTV1000/A CHECK MODE 2 screen CHECK MODE 2 (ST20) DPRAM: OK (or NG) Tuner : OK (or NG) : OK (or NG) Video : OK (or NG) Audio : OK (or NG) : OK (or NG) CHECK MODE 2 (ST20): Tells that the set is in the check mode 2.
  • Page 22 TU-DTV1000/A CHECK MODE 3 screen CHECK MODE 3 (push key) CLEAR MENU BLUE GREEN LEFT RIGHT BLACK DOWN SELECT CHECK MODE 3 (push key): Tells that the set is in the check mode 3. Press the keys on the front of the set to check the functions of the switches.

  • Page 23: Chassis Layout

    TU-DTV1000/A TU-DTV1000/A CHASSIS LAYOUT Sub Power Unit Operation Unit Main Power Unit R/C/LED Unit ATV-1 Unit ATV-2 Unit...

  • Page 24: Block Diagram

    TU-DTV1000/A TU-DTV1000/A BLOCK DIAGRAM MMC-1 Data Distributor Bug-fix (15Pin D-sub) Interface (25Pin D-sub) HD component Raster ~Flash Memory Write System output Scan MMC-2 Converter (Add R-Pro only) Converter Y/PB/PR (NTSC) NTSC MPEG2 S-Video TS Data IN Encoder Video Video Decoder...

  • Page 25: Overall Wiring Diagram

    TU-DTV1000/A TU-DTV1000/A OVERALL WIRING DIAGRAM...

  • Page 26: Description Of Schematic Diagram

    TU-DTV1000/A TU-DTV1000/A DESCRIPTION OF SCHEMATIC DIAGRAM SCHEMATIC DIAGRAM Ë OPERATION and R/C·LED UNITS VOLTAGE MEASUREMENT CONDITION: 1. Voltages at test points are measured at the supply voltage of AC 120V. Signals are fed by a OPERATION color bar signal generator for servicing purpose and the above voltages are measured with a 20k ohm/V tester.
  • Page 27 TU-DTV1000/A TU-DTV1000/A Ë ATV-1 UNIT-1/12...
  • Page 28 TU-DTV1000/A TU-DTV1000/A Ë ATV-1 UNIT-2/12...
  • Page 29 TU-DTV1000/A TU-DTV1000/A Ë ATV-1 UNIT-3/12...
  • Page 30 TU-DTV1000/A TU-DTV1000/A Ë ATV-1 UNIT-4/12...
  • Page 31 TU-DTV1000/A TU-DTV1000/A Ë ATV-1 UNIT-5/12...
  • Page 32 TU-DTV1000/A TU-DTV1000/A Ë ATV-1 UNIT-6/12...
  • Page 33 TU-DTV1000/A TU-DTV1000/A Ë ATV-1 UNIT-7/12...
  • Page 34 TU-DTV1000/A TU-DTV1000/A Ë ATV-1 UNIT-8/12...
  • Page 35 TU-DTV1000/A TU-DTV1000/A Ë ATV-1 UNIT-9/12...
  • Page 36 TU-DTV1000/A TU-DTV1000/A Ë ATV-1 UNIT-10/12 å å å å å...
  • Page 37 TU-DTV1000/A TU-DTV1000/A Ë ATV-1 UNIT-11/12...
  • Page 38 TU-DTV1000/A TU-DTV1000/A Ë ATV-1 UNIT-12/12...
  • Page 39 TU-DTV1000/A TU-DTV1000/A Ë ATV-2 UNIT-1/13...
  • Page 40 TU-DTV1000/A TU-DTV1000/A Ë ATV-2 UNIT-2/13...
  • Page 41 TU-DTV1000/A TU-DTV1000/A Ë ATV-2 UNIT-3/13...
  • Page 42 TU-DTV1000/A TU-DTV1000/A Ë ATV-2 UNIT-4/13...
  • Page 43 TU-DTV1000/A TU-DTV1000/A Ë ATV-2 UNIT-5/13...
  • Page 44 TU-DTV1000/A TU-DTV1000/A Ë ATV-2 UNIT-6/13...
  • Page 45 TU-DTV1000/A TU-DTV1000/A Ë ATV-2 UNIT-7/13...
  • Page 46 TU-DTV1000/A TU-DTV1000/A Ë ATV-2 UNIT-8/13...
  • Page 47 TU-DTV1000/A TU-DTV1000/A Ë ATV-2 UNIT-9/13 å å å å å...
  • Page 48 TU-DTV1000/A TU-DTV1000/A Ë ATV-2 UNIT-10/13...
  • Page 49 TU-DTV1000/A TU-DTV1000/A Ë ATV-2 UNIT-11/13...
  • Page 50 TU-DTV1000/A TU-DTV1000/A Ë ATV-2 UNIT-12/13...
  • Page 51 TU-DTV1000/A TU-DTV1000/A Ë ATV-2 UNIT-13/13...
  • Page 52 TU-DTV1000/A TU-DTV1000/A Ë SUB POWER UNIT å å å å å...

  • Page 53: Printed Wiring Board Assemblies

    TU-DTV1000/A TU-DTV1000/A PRINTED WIRING BOARD ASSEMBLIES Operation Unit (Wiring Side) Sub Power Unit (Wiring Side) R/C·LED Unit (Wiring Side)
  • Page 54 TU-DTV1000/A TU-DTV1000/A ATV-1 Unit (Wiring Side)
  • Page 55 TU-DTV1000/A TU-DTV1000/A ATV-1 Unit (Chip Parts Side)
  • Page 56 TU-DTV1000/A TU-DTV1000/A ATV-2 Unit (Wiring Side)
  • Page 57 TU-DTV1000/A TU-DTV1000/A ATV-2 Unit (Chip Parts Side)

  • Page 58: Parts List

    IC5009 RH-iX3272CEZZ J I.C. IC5315 VHiNJM4560M-1 J NJM4560M FL5015 RFiLN0077CEZZ J Filter IC5010 RH-iX3272CEZZ J I.C. Contact your nearest SHARP Parts Distributor. FL5016 RFiLN0077CEZZ J Filter IC5011 RH-iX3161CEZZ J I.C. For location of SHARP Parts Distributor, TRANSISTORS FL5017 RFiLN0077CEZZ J Filter Please call Toll-Free;...
  • Page 59 TU-DTV1000/A Ref. No. Part No. Description Code Ref. No. Part No. Description Code DUNTK9709FE01 C5208 VCKYCY1HF103Z J 0.01 Ceramic ATV-1 UNIT (Continued) C5209 VCKYCY1HF103Z J 0.01 Ceramic C5211 VCKYCY1EF104Z J 0.1 Ceramic C5007 VCEAPF1CW226M J 22 Electrolytic C5212 VCEAPW0JN477M J 470 6.3V Electrolytic...
  • Page 60 TU-DTV1000/A Ref. No. Part No. Description Code Ref. No. Part No. Description Code DUNTK9709FE01 C5805 VCKYCY1EF104Z J 0.1 Ceramic ATV-1 UNIT (Continued) C5806 VCKYCY1EF104Z J 0.1 Ceramic C5807 VCKYCY1EF104Z J 0.1 Ceramic C5337 VCKYCY1HB471K J 470p Ceramic C5808 VCKYCY1EF104Z J 0.1...
  • Page 61 TU-DTV1000/A Ref. No. Part No. Description Code Ref. No. Part No. Description Code DUNTK9709FE01 R5049 VRS-CY1JF103J J 10k 1/16W Metal Oxide ATV-1 UNIT (Continued) R5050 VRS-CY1JF103J J 10k 1/16W Metal Oxide R5051 VRS-CY1JF560J J 56 1/16W Metal Oxide C5863 VCKYCY1EF104Z J 0.1...
  • Page 62 TU-DTV1000/A Ref. No. Part No. Description Code Ref. No. Part No. Description Code DUNTK9709FE01 R5230 VRS-TV1JD750J J 75 1/16W Metal Oxide ATV-1 UNIT (Continued) R5231 VRS-CY1JF471F J 470 1/16W Metal Oxide R5232 VRS-CY1JF102F J 1k 1/16W Metal Oxide R5126 VRS-CY1JF101J...
  • Page 63 TU-DTV1000/A Ref. No. Part No. Description Code Ref. No. Part No. Description Code DUNTK9709FE01 R5801 VRS-CY1JF153J J 15k 1/16W Metal Oxide ATV-1 UNIT (Continued) R5802 VRS-CY1JF153J J 15k 1/16W Metal Oxide R5803 VRS-CY1JF102J J 1k 1/16W Metal Oxide R5335 VRS-CY1JF222J J 2.2k 1/16W Metal Oxide...
  • Page 64 TU-DTV1000/A Ref. No. Part No. Description Code Ref. No. Part No. Description Code DUNTK9709FE01 FB5132 RBLN-0067TAZZ J Ferrite Bead ATV-1 UNIT (Continued) FB5133 RBLN-0067TAZZ J Ferrite Bead FB5134 RBLN-0067TAZZ J Ferrite Bead R5870 VRS-CY1JF560J J 56 1/16W Metal Oxide FB5135 RBLN-0067TAZZ...
  • Page 65 TU-DTV1000/A Ref. No. Part No. Description Code Ref. No. Part No. Description Code DUNTK9709FE01 DUNTK9710FE01 ATV-1 UNIT (Continued) ATV-2 UNIT INTEGRATED CIRCUITS P5015 QPLGN0433FJZZ J Plug P5201 QPLGN0378GEZZ J Plug, 3-pin IC5401 RH-iX3173CEZZ J I.C. P5202 QPLGN0667GEZZ J Plug, 6-pin IC5403 RH-iX3158CEZZ J I.C.
  • Page 66 TU-DTV1000/A Ref. No. Part No. Description Code Ref. No. Part No. Description Code DUNTK9710FE01 C5413 VCEAPW0JN477M J 470 6.3V Electrolytic ATV-2 UNIT (Continued) C5414 VCKYCY1EF104Z J 0.1 Ceramic C5415 VCEAPX1CW477M J 470 Electrolytic TRANSISTORS C5416 VCKYCY1EF104Z J 0.1 Ceramic Q5401 VS2SA1530R/-1...
  • Page 67 TU-DTV1000/A Ref. No. Part No. Description Code Ref. No. Part No. Description Code DUNTK9710FE01 C5654 VCKYCY1EF104Z J 0.1 Ceramic ATV-2 UNIT (Continued) C5655 VCKYCY1EF104Z J 0.1 Ceramic C5656 VCKYCY1EF104Z J 0.1 Ceramic C5581 VCKYCY1EF104Z J 0.1 Ceramic C5657 VCKYCY1EF104Z J 0.1...
  • Page 68 TU-DTV1000/A Ref. No. Part No. Description Code Ref. No. Part No. Description Code DUNTK9710FE01 C5784 VCKYCY1EF104Z J 0.1 Ceramic ATV-2 UNIT (Continued) C5785 VCKYCY1EF104Z J 0.1 Ceramic RESISTORS C5717 VCKYCY1EF104Z J 0.1 Ceramic C5718 VCKYCY1EF104Z J 0.1 Ceramic R5408 VRS-CY1JF102J...
  • Page 69 TU-DTV1000/A Ref. No. Part No. Description Code Ref. No. Part No. Description Code DUNTK9710FE01 R5547 VRS-CY1JF102J J 1k 1/16W Metal Oxide ATV-2 UNIT (Continued) R5548 VRS-CY1JF100J J 10 1/16W Metal Oxide R5549 VRS-CY1JF100J J 10 1/16W Metal Oxide R5484 VRS-CY1JF100J...
  • Page 70 TU-DTV1000/A Ref. No. Part No. Description Code Ref. No. Part No. Description Code DUNTK9710FE01 R5691 VRS-CY1JF473J J 47k 1/16W Metal Oxide ATV-2 UNIT (Continued) R5692 VRS-CY1JF473J J 47k 1/16W Metal Oxide R5693 VRS-CY1JF473J J 47k 1/16W Metal Oxide R5638 VRS-CY1JF473J...
  • Page 71 TU-DTV1000/A Ref. No. Part No. Description Code Ref. No. Part No. Description Code DUNTK9710FE01 FB5493 RBLN-0084CEZZ J Ferrite Bead ATV-2 UNIT (Continued) FB5494 RBLN-0084CEZZ J Ferrite Bead FB5495 RBLN-0067TAZZ J Ferrite Bead FB5440 RBLN-0067TAZZ J Ferrite Bead FB5496 RBLN-0067TAZZ J Ferrite Bead...
  • Page 72 TU-DTV1000/A Ref. No. Part No. Description Code Ref. No. Part No. Description Code DUNTK9711FE01 P5982 QPLGN0369GEZZ J Plug, 5-pin SUB POWER UNIT P5983 QPLGN0541CEZZ J Plug, 5-pin P5984 QPLGN0767GEZZ J Plug, 7-pin INTEGRATED CIRCUITS P5985 QPLGN0667GEZZ J Plug, 6-pin IC5981 VHiKA7805Pi-1...
  • Page 73 TU-DTV1000/A TU-DTV1000/A Ref. No. Part No. Description Code Ref. No. Part No. Description Code DUNTK9712DE01 DUNTK9713DE01 R/C, LED UNIT OPERATION UNIT DIODES RESISTORS D5771 RH-PX0402CEZZ J LED R5773 VRD-RA2BE471J J 470 1/8W Carbon D5772 RH-PX0401CEZZ J LED R5774 VRD-RA2BE681J J 680 1/8W...

  • Page 74: Ë Cabinet And Mechanical Parts

    TU-DTV1000/A TU-DTV1000/A CABINET AND MECHANICAL PARTS...

  • Page 75: Ë Packing Parts

    GCOVA1765CESA J R/C, LED Cover QCNW-5212CEZZ J Connecting Cord GCOVA1767CESA J LED Cover QCNW-5211CEZZ J Connecting Cord HBDGS3142CESA J Badge, “SHARP VISION” JBTN-1995CESA J Button, Power JBTN-1996CESA J Button, CH-up/down XTASD30P10000 J Screw, x2 SUPPLIED ACCESSORIES HiNDP5208CESA J DTV Label...

  • Page 76: Packing Of The Set

    TU-DTV1000/A Ref. No. Part No. Description Code Ref. No. Part No. Description Code PACKING OF THE SET...
  • Page 77 TU-DTV1000/A Ref. No. Part No. Description Code Ref. No. Part No. Description Code...
  • Page 78 Code Ref. No. Part No. Description Code COPYRIGHT © 1998 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.

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