Service manual

ManualsBrandsSharp ManualsTV19U-M100

19U-M100,19U-M100S

CU19M10

COLOR TELEVISION

Chassis No. SN-010

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 .....................................................................................................6

» INSTALLATION AND SERVICE INSTRUCTIONS ................................................................................7

» CHASSIS LAYOUT .............................................................................................................................13

» BLOCK DIAGRAM ..............................................................................................................................15

» SCHEMATIC DIAGRAMS ...................................................................................................................17

» PRINTED WIRING BOARD ASSEMBLIES ........................................................................................26

» REPLACEMENT PARTS LIST ............................................................................................................29

» PACKING OF THE SET ......................................................................................................................37

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 ..................................................... AC 120 V, 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)

AUDIO POWER

OUTPUT RATING ..................................................... 1 W (RMS)

ELECTRICAL SPECIFICATIONS

SPEAKER

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

VOICE COIL IMPEDANCE............................. 32 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

19U-M100, 19U-M100S

CU19M10

S12E719U-M100

POWER

–

VOL

Summary of content (35 pages)

PAGE 1
9U-M100,19U-M100S CU19M10 SERVICE MANUAL S12E719U-M100 COLOR TELEVISION Chassis No. SN-010 POWE R – VOL + CH MENU MODELS 19U-M100, 19U-M100S CU19M10 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. CONTENTS » » » » » » » » » » Page ELECTRICAL SPECIFICATIONS ................................................................................................
PAGE 2
19U-M100,19U-M100S CU19M10 IMPORTANT SERVICE SAFETY PRECAUTION Ë Service work should be performed only by qualified service technicians who are thoroughly familiar with all safety checks and the servicing guidelines which follow: WARNING X-RADIATION AND HIGH VOLTAGE LIMITS 1. For continued safety, no modification of any circuit should be attempted. 2. Disconnect AC power before servicing. 3. Semiconductor heat sinks are potential shock hazards when the chassis is operating. 4.
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19U-M100,19U-M100S CU19M10 IMPORTANT SERVICE SAFETY PRECAUTION (Continued) » Connect the resistor connection to all exposed metal parts having a return to the chassis (antenna, metal cabinet, screw heads, knobs and control shafts, escutcheon, etc.) and measure the AC voltage drop across the resistor. AII checks must be repeated with the AC line cord plug connection reversed. (If necessary, a nonpolarized adapter plug must be used only for the purpose of completing these check.
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19U-M100,19U-M100S CU19M10 PRECAUTIONS A PRENDRE LORS DE LA REPARATION Ë Ne peut effectuer la réparation qu' un technicien spécialisé qui s'est parfaitement accoutumé à toute vérification de sécurité et aux conseils suivants. LIMITES DES RADIATIONS X ET DE LA HAUTE TENSION AVERTISSEMENT 1. N'entreprendre aucune modification de tout circuit. C'est dangereux. 2. Débrancher le récepteur avant toute réparation. 3.
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19U-M100,19U-M100S CU19M10 PRECAUTIONS A PRENDRE LORS DE LA REPARATION (Suite) » Toucher avec la sonde d'essai les pièces métalliques exposées qui présentent une voie de retour au châssis (antenne, coffret métallique, tête des vis, arbres de commande et des boutons, écusson, etc.) et mesurer la chute de tension CA en-travers de la résistance. Toutes les vérifications doivent être refaites après avoir inversé la fiche du cordon d'alimentation.
PAGE 6
19U-M100,19U-M100S CU19M10 LOCATION OF USER'S CONTROL Front Panel POWER – VOL + CH MENU SENSOR AREA FOR REMOTE CONTROL POWER – VOL + CH MENU POWER Press → On. Press again → Off. VOLUME UP/DOWN (+) Increases sound. (–) Decreases sound. CHANNEL UP/DOWN – MENU (') Selects next higher channel. (") Selects next lower channel. • Press both at the same time to access the MAIN MENU screen. Basic Remote Control Functions Infrared Transmitter Window INPUT Press → Switch to external video input mode.
PAGE 7
19U-M100,19U-M100S CU19M10 INSTALLATION AND SERVICE INSTRUCTIONS Note: (1) When performing any adjustments to resistor controls and transformers use non-metallic screwdrivers or TV alignment tools. (2) Before performing adjustments, the TV set must be on at least 15 minutes. CIRCUIT PROTECTION HIGH VOLTAGE CHECK The receiver is protected by a 4.0A fuse (F701), mounted on PWB-A, wired into one side of the AC line input.
PAGE 8
19U-M100,19U-M100S CU19M10 For adjustments of this model, the bus data is converted to various analog signals by the D/A converter circuit. Note: There are still a few analog adjustments in this series such as focus and master screen voltage. Follow the steps below whenever the service adjusment is required. To enter the service mode and exit service mode. While pressing the Vol-up and Ch-up buttons at the sametime, plug the AC cord into a wall socket.
PAGE 9
19U-M100,19U-M100S CU19M10 Below are the adjustments ranges and initial values for FIX VALUE category.
PAGE 10
19U-M100,19U-M100S CU19M10 Holding down both the Vol-up/Ch-down buttons on the TV set at service mode for more than 2 seconds will automatically write the above initial values into IC2101. ADJUSTMENT PART REPLACED NECESSARY X IC2001 IC201 X IC2101 X CRT X NOTES UNNECESSARY Data is stored in IC2101. The adjustment is needed to compensate for characteristics of parts including IC201.
PAGE 11
19U-M100,19U-M100S CU19M10 Ë SERVICE ADJUSTMENT RF AGC Adjustment White Balance Adjustment 1. Receive a good local channel. 2. Enter the service mode signal category and select the service adjustment "S01". 3. Set the data value to point where no noise or beat appears. 4. Select another channel to confirm that no noise or beat appears. Note: You have to exit the service mode first to select another channel. 1. Receive a good local channel. 2.
PAGE 12
19U-M100,19U-M100S CU19M10 Vertical-Size, V-Linearity and V-S Correction Adjustments 1. Receive a good local channel. 2. Enter the service mode DEF category and select the adjustment "D02" for Vertical Size, "D05" for VLinearity and "D06" for V-S Correction Adjustment. 3. Set in order "D05" for V-Linearity, "D06" for V-S Correction and set the data to get the best linearity. 4. Then adjust "D02" data until it become a proper vertical size. Horizontal Position Adjustment 1. Receive a good local channel. 2.
PAGE 13
19U-M100,19U-M100S CU19M10 MODELS 19U-M100/100S CHASSIS LAYOUT H Ë19U-M100 Ë19U-M100S G F E D C B A 1 2 3 4 13 5 6
PAGE 14
19U-M100,19U-M100S CU19M10 MODEL CU19M10 CHASSIS LAYOUT H G F E D C B A 1 2 3 4 14 5 6
PAGE 15
19U-M100,19U-M100S CU19M10 MODELS 19U-M100/100S BLOCK DIAGRAM H G F E D C B A 1 2 3 4 15 5 6
PAGE 16
19U-M100,19U-M100S CU19M10 MODEL CU19M10 BLOCK DIAGRAM H G F E D C B A 1 2 3 4 16 5 6
PAGE 17
19U-M100,19U-M100S CU19M10 DESCRIPTION OF SCHEMATIC DIAGRAM 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 ground.) NOTES: 1. The unit of resistance "ohm" is omitted. (K=kΩ=1000Ω, M=MΩ) 2.
PAGE 18
19U-M100,19U-M100S CU19M10 MODEL 19U-M100 SCHEMATIC DIAGRAM: MAIN Unit H G F E D C B A 1 2 3 18 4 5 6 7 8 9 10 11 19 12
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U-M100,19U-M100S CU19M10 MODEL 19U-M100S SCHEMATIC DIAGRAM: MAIN Unit H G F E D C B A 1 2 3 20 4 5 6 7 8 9 10 11 21 12
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19U-M100,19U-M100S CU19M10 MODEL CU19M10 SCHEMATIC DIAGRAM: MAIN Unit H G F E D C B A 1 2 3 22 4 5 6 7 8 9 10 11 23 12
PAGE 21
19U-M100,19U-M100S CU19M10 MODEL 19U-M100 SCHEMATIC DIAGRAM: CRT Unit H G F E D C B A 1 2 3 4 24 5 6
PAGE 22
19U-M100,19U-M100S CU19M10 MODELS 19U-M100S, CU19M10 SCHEMATIC DIAGRAM: CRT Unit H G F E D C B A 1 2 3 4 25 5 6
PAGE 23
19U-M100,19U-M100S CU19M10 PRINTED WIRING BOARD ASSEMBLIES H G F E D C B PWB-A: MAIN Unit (Wiring Side) A 1 2 3 4 26 5 6
PAGE 24
19U-M100,19U-M100S CU19M10 H G F E D C B PWB-A: MAIN Unit (Chip Parts Side) A 1 2 3 4 27 5 6
PAGE 25
19U-M100,19U-M100S CU19M10 H G F PWB-B: CRT Unit (Wiring Side) E D C B PWB-B: CRT Unit (Chip Parts Side) A 1 2 3 4 28 5 6
PAGE 26
19U-M100,19U-M100S CU19M10 Ref. No. ★ Part No. Description Code Ref. No. PARTS LIST Part No. ★ Description Code LISTE DES PIECES PARTS REPLACEMENT CHANGE DES PIECES Replacement parts which have these special safety characteristics identified in this manual ; electrical components having such features are identified by å and shaded areas in the Replacement Parts Lists and Schematic Diagrams.
PAGE 27
19U-M100,19U-M100S CU19M10 Ref. No. ★ Part No. Description Code Ref. No. PWB-A:DUNTKA358WEX9(19U-M100) PWB-A:DUNTKA358WEY0(19U-M100S) PWB-A:DUNTKA358WEY1(CU19M10) MAIN UNIT or VS2PD601ARQ-1 Q2211 VS2SC1623L61E or VS2SC3928R/-1 TUNER NOTE: THE PARTS HERES SHOWN ARE SUPPLIED AS AN ASSEMBLY BUT NOT INDEPENDENTLY.
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19U-M100,19U-M100S CU19M10 Ref. No. ★ Part No. Description Code Ref. No.
PAGE 29
19U-M100,19U-M100S CU19M10 Ref. No. ★ Part No. Description Code Ref. No. PWB-A:DUNTKA358WEX9(19U-M100) PWB-A:DUNTKA358WEY0(19U-M100S) PWB-A:DUNTKA358WEY1(CU19M10) MAIN UNIT (Continued) å C708 RC-FZ037SCEZZ or RC-FZ012SGEZZ or RC-FZ017SCEZZ or RC-FZ029SCEZZ VCKYPA2HB472K RC-EZ0638CEZZ RC-EZ0724CEZZ VCKYPH3DB561K VCKYPA2HB472K VCEA0A1CW108M VCEA0A1EW227M VCKYPA1HF103Z VCCCPA1HH680J VCEA0A1EW226M RC-KZ0040CEZZ VCEA0A1HW104M VCEA0A1EW476M VCKYPH3DB561K VCKYPA1HF103Z VCEA0A1CW476M VCKYPH3DB561K J 0.
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19U-M100,19U-M100S CU19M10 Ref. No. Part No. ★ Description Code Ref. No.
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19U-M100,19U-M100S CU19M10 Ref. No. Part No. ★ Description Code Ref. No.
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19U-M100,19U-M100S CU19M10 Ref. No. Part No. ★ Description Code Ref. No.
PAGE 33
19U-M100,19U-M100S CU19M10 Ref. No. Part No. ★ Description Code Ref. No. CABINET PARTS 1 1 1-1 1-2 1-3 2 ★ Part No.
PAGE 34
19U-M100,19U-M100S CU19M10 PACKING OF THE SET ★ Polyethylene Bag Operation Manual Guarantee Card (19U-M100/100S) ★ Batteries ★ Polyethylene Mat Infrared R/C unit ★Buffer Material FRONT ★ Packing Case REAR ★ MARK : Not replacement items. 37 Use 22 staples to fix the bottom side of packing case.
PAGE 35
19U-M100,19U-M100S CU19M10 COPYRIGHT © 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. SHARP CORPORATION AV Systems Group Quality & Reliability Control Center Yaita, Tochigi 329-2193, Japan D SEM P SREC TQ1282-S Mar. 2002 Printed in Japan MI.