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Sharp 14U-FM1 Service Manual
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Sharp 14U-FM1 Service Manual

Sharp 14U-FM1 Service Manual

Color television
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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.
» ELECTRICAL SPECIFICATIONS ......................................................................................................... 1
» IMPORTANT SERVICE SAFETY PRECAUTION ................................................................................. 2
» LOCATION OF USER'S CONTROL ..................................................................................................... 6
» INSTALLATION AND SERVICE INSTRUCTIONS ................................................................................ 7
» SERVICE MODE ................................................................................................................................... 8
» ADJUSTMENT METHOD ................................................................................................................... 13
» CHASSIS LAYOUT ............................................................................................................................. 26
» BLOCK DIAGRAM .............................................................................................................................. 27
» SCHEMATIC DIAGRAMS ................................................................................................................... 32
» PRINTED WIRING BOARD ASSEMBLIES ........................................................................................ 38
» REPLACEMENT PARTS LIST ............................................................................................................ 41
» PACKING OF THE SET ...................................................................................................................... 47
POWER INPUT ..................................................... AC 120 V, 60 Hz
POWER RATING .................................................................... 70 W
PICTURE SIZE ............................................... 607 cm
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
AUDIO POWER
OUTPUT RATING ..................................................... 3 W (RMS)

SHARP CORPORATION

SERVICE MANUAL

MODELS
CONTENTS

ELECTRICAL SPECIFICATIONS

SPEAKER
SIZE .............................................................................. 5 x 9 cm
2
(94sq inch)
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
(Nominal)
Specifications are subject to change without
prior notice.
This document has been published to be used for after
sales service only.
The contents are subject to change without notice.
COLOR TELEVISION
Chassis No. GA-2
14U-FM1
CU14FM1
(EIA, Channel Plan U.S.A.)
14U-FM1
CU14FM1
S32G614U-FM1/
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Summary of Contents for Sharp 14U-FM1

  • Page 1: Table Of Contents

    14U-FM1 CU14FM1 SERVICE MANUAL S32G614U-FM1/ COLOR TELEVISION Chassis No. GA-2 14U-FM1 CU14FM1 MODELS 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: Important Service Safety Precaution

    14U-FM1 CU14FM1 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 1.

  • Page 3: 14U-Fm1

    14U-FM1 CU14FM1 IMPORTANT SERVICE SAFETY PRECAUTION (Continued) • Connect the resistor connection to all exposed metal BEFORE RETURNING THE RECEIVER parts having a return to the chassis (antenna, metal (Fire & Shock Hazard) cabinet, screw heads, knobs and control shafts, escutcheon, etc.) and measure the AC voltage drop...
  • Page 4 14U-FM1 CU14FM1 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. AVERTISSEMENT LIMITES DES RADIATIONS X ET DE LA HAUTE TENSION 1.

  • Page 5: 14U-Fm1

    14U-FM1 CU14FM1 PRECAUTIONS A PRENDRE LORS DE LA REPARATION (Suite) » Toucher avec la sonde d'essai les pièces métalliques VERIFICATIONS CONTRE L'INCEN-DIE ET exposées qui présentent une voie de retour au LE CHOC ELECTRIQUE châssis (antenne, coffret métallique, tête des vis, Avant de rendre le récepteur à...

  • Page 6: Location Of User's Control

    14U-FM1 CU14FM1 LOCATION OF USER'S CONTROL Front Panel SENSOR AREA FOR VIDEO IN AUDIO REMOTE CONTROL TERMINALS POWER Press → On. Press again → Off. MENU. CHANNEL UP/DOWN Press → Accesses MAIN MENU. ) Selects next higher channel. Press again → Exits MAIN MENU.

  • Page 7: Installation And Service Instructions

    14U-FM1 CU14FM1 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. HIGH VOLTAGE CHECK CIRCUIT PROTECTION The receiver is protected by a 4.0A fuse (F701),...

  • Page 8: Service Mode

    14U-FM1 CU14FM1 SERVICE MODE Service Mode Overview 1. Service mode is entered by SERVICE key input or CH-UP +VOL-DOWN input during reset. 2. Service mode is cleared by entering SERVICE key or CH-UP +VOL-DOWN key command during service mode. 3. If key input port (SERVICE) input is LOW, then it is in service mode.

  • Page 9: 14U-Fm1

    14U-FM1 CU14FM1 Adjustment Mode Items Item Name Register Range Default SUB-PICTURE 1 Chip CONTRAST 0~127 SUB-TINT 1 Chip TINT 0~127 SUB-COLOR 1 Chip COLOR 0~127 SUB-BRIGHT 1 Chip BRIGHT 0~255 SUB-SHARP 1 Chip VIDEO-TONE 0~63 V-SHIFT 1 Chip V-SHIFT H-SHIFT...

  • Page 10: 14U-Fm1

    14U-FM1 CU14FM1 Ë SELF ADJUSTMENT H-VCO 1. When there is H-VCO self-adjustment key input for adjustment item H-VCO, self-adjustment is performed. 2. H-FREE(1chip) is set to 1. 3. H-OUT is set by intelligent monitor output. 4. IM input is set as TIM input.

  • Page 11: 14U-Fm1

    14U-FM1 CU14FM1 Setting Mode Items Item Name Register Range Default VideoTone-Gain (TV) 1chip V-TONE 0 / 1 VideoTone-Gain (AV) 1chip V-TONE 0 / 1 VideoTone-Gain(YUV) 1chip V-TONE 0 / 1 ABCL 1chip ABCL 0 / 1 1chip BS-OFF 0 / 1...
  • Page 12 14U-FM1 CU14FM1 Option Mode Items ITEM DEFAULT DEM0 Without DEMO With DEMO DOWNLOAD Without V-CHIP OP With V-CHIP OP V-CHIP Without V-CHIP With V-CHIP SPEAKER Without SPEAKER With SPEAKER Without FAO With FAO P.PREF Without P.PREF With P.PREF UNIV+ Without UNIV+...

  • Page 13: Adjustment Method

    14U-FM1 CU14FM1 ADJUSTMENT METHOD Caution: to get into the service mode, one of the ways is press direct key for service items. the other ways is short the main chassis JA309 and JA402 There is three stage of Service Mode data...
  • Page 14 14U-FM1 CU14FM1 Second Stage Data Service Mode Function Range Default Data VIDEO TONE -GAIN (TV) V-TONE VIDEO TONE -GAIN (AV V-TONE VIDEO TONE -GAIN(YUV) V-TONE ABCL ABCL BS-OFF ABCL-G ABCL-G SHP-AV VIDEO-TONE(OFFSET) -16~+16 SHP-YUV VIDEO-TONE(OFFSET) -16~+16 SHP-CLIP EXTRGB-CLIP E-SAVE CONTRAST(OFFSET)
  • Page 15 14U-FM1 CU14FM1 Third Stage Data Service Mode DATA="0" DATA="1" Default Data DEMO DEMO OFF DOWNLOAD V-CHIP OP OFF V-CHIP V-CHIP OFF SPEAKER SPEAKER OFF FAO OFF P.PREF P.REF OFF UNIV+ UNIV+ OFF VIEW TIMER VIEW TIMER OFF EZ-SETUP EZ-SETUP AUTO PRESET...
  • Page 16 14U-FM1 CU14FM1...
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  • Page 26: Chassis Layout

    14U-FM1 CU14FM1 CHASSIS LAYOUT...

  • Page 27: Block Diagram

    14U-FM1 CU14FM1 BLOCK DIAGRAM-1...
  • Page 28 14U-FM1 CU14FM1 MODEL 14U-FM1 BLOCK DIAGRAM-2...
  • Page 29 14U-FM1 CU14FM1...
  • Page 30 14U-FM1 CU14FM1 MODEL CU14FM1 BLOCK DIAGRAM-2...
  • Page 31 14U-FM1 CU14FM1...

  • Page 32: Schematic Diagrams

    14U-FM1 CU14FM1 DESCRIPTION OF SCHEMATIC DIAGRAM WAVEFORM MEASUREMENT CONDITIONS: NOTES: 1. Photographs taken on a standard gated color bar 1. The unit of resistance "ohm" is omitted. (K=k Ω =1000 Ω , M=M Ω ) signal, the tint setting adjusted for proper color. The wave shapes at the red, green and blue cathodes of 2.
  • Page 33 14U-FM1 CU14FM1 SCHEMATIC DIAGRAM: CRT Unit...
  • Page 34 14U-FM1 CU14FM1 MODEL 14U-FM1 SCHEMATIC DIAGRAM: MAIN Unit...
  • Page 35 14U-FM1 CU14FM1...
  • Page 36 14U-FM1 CU14FM1 MODEL CU14FM1 SCHEMATIC DIAGRAM: MAIN Unit...
  • Page 37 14U-FM1 CU14FM1...

  • Page 38: Printed Wiring Board Assemblies

    14U-FM1 CU14FM1 PRINTED WIRING BOARD ASSEMBLIES PWB-A: MAIN Unit (Wiring Side)
  • Page 39 14U-FM1 CU14FM1 PWB-A: MAIN Unit (Chip Parts Side)
  • Page 40 14U-FM1 CU14FM1 PWB-B: CRT Unit (Wiring Side) PWB-B: CRT Unit (Chip Parts Side)

  • Page 41: Replacement Parts List

    2. NO. DE REF 3. NO. DE PIECE 4. DESCRIPTION in USA: Contact your nearest SHARP Parts Distributor to order. For in CANADA: Contact SHARP Electronics of Canada Limited location of SHARP Parts Distributor, Please call Toll-Free; 1- Phone (416) 890-2100...
  • Page 42 14U-FM1 CU14FM1 Ref. No. Part No. Description Code Ref. No. Part No. Description Code PWB-A: DUNTKB177WEA0(14U-FM1) FILTERS AND COILS PWB-A: DUNTKB177WEA1(CU14FM1) CF201 RFiLC0447CEZZ J Ceramic Filter MAIN UNIT (Continued) CF802 RFiLC0446CEZZ J Ceramic Filter SF201 RFiLC0405CEZZ J SAW Filter L202 VP-CF270K0000 J Peaking 27µH...
  • Page 43 14U-FM1 CU14FM1 Ref. No. Part No. Description Code Ref. No. Part No. Description Code PWB-A: DUNTKB177WEA0(14U-FM1) C841 VCCCCY1HH101J J 100p 50V Ceramic PWB-A: DUNTKB177WEA1(CU14FM1) C842 VCEA9M1HW474M J 0.47 C843 VCEA9M1HW105M J 1.0 MAIN UNIT (Continued) C845 VCKYCY1CF224Z J 0.22 Ceramic...
  • Page 44 14U-FM1 CU14FM1 Ref. No. Part No. Description Code Ref. No. Part No. Description Code PWB-A: DUNTKB177WEA0(14U-FM1) R753 VRD-RM2HD124J J 120k 1/2W Carbon PWB-A: DUNTKB177WEA1(CU14FM1) R754 VRN-VV3DB8R2J J 8.2 M-Film R755 VRS-VV3DB150J J 15 M-Ox. MAIN UNIT (Continued) R756 VRS-VV3DB121J J 120 2W M-Ox.

  • Page 45: Crt Unit

    14U-FM1 CU14FM1 Ref. No. Part No. Description Code Ref. No. Part No. Description Code PWB-A: DUNTKB177WEA0(14U-FM1) PWB-B: DUNTKB178WEA0(14U-FM1) PWB-A: DUNTKB177WEA1(CU14FM1) PWB-B: DUNTKB178WEA1(CU14FM1) MAIN UNIT (Continued) CRT UNIT TRANSISTORS R1063 VRS-CY1JF103J J 10k 1/16W M-Ox. R1064 VRS-CY1JF103J J 10k 1/16W M-Ox.

  • Page 46: Miscellaneous Parts

    J Screw, x4 LANGB0018PEFD R CRT Bracket LHLDZ0015PEZZ R Holder LHLDZ0147PEZZ R Holder MSPRC0005PEFW R Spring PSPAH0073PE00 R Spacer TCAUH0055PEZZ R Caution Card(14U-FM1) TCAUS0004PEZZ R Caution Card(CU14FM1) TCAUS0013PEZZ R Caution Card(CU14FM1) XEBSD30P12000 J Screw XTASD40P20000 J Screw CABINET PARTS LOCATION...

  • Page 47: Packing Of The Set

    14U-FM1 CU14FM1 PACKING OF THE SET Polyethylene Bag Operation Manual Guarantee Card(14U-FM1) Batteries Wrapping Paper Infrared R/C Unit Buffer Material FRONT Packing Case Serial No. Label Use 22 staples fix the packing case. REAR MARK : Not replacement items.
  • Page 48 14U-FM1 CU14FM1 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.

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