Sharp 14U10 Service Manual
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Sharp 14U10 Service Manual

Sharp 14U10 Service Manual

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(14U10)
(14U20)
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.
Ë Full Auto Channel Preset and Auto Channel Skip
Ë 100-CH Program Memory
Ë CATV (Hyper Band) Ready <Used Frequency Synthesizer
Tuner>
Ë AVL (Sound Keeper) Function
Ë Black Stretch Circuit
Ë On Timer/Sleep Timer/Reminder Timer
Ë Blue Back Noise Mute
» SPECIFICATIONS ...........................................2
» IMPORTANT SERVICE NOTES ..................... 2
» ADJUSTMENT PRECAUTIONS ..................... 3
» SERVICE MODE ............................................. 3
» TROUBLE SHOOTING TABLE ..................... 19
» CHASSIS LAYOUT ........................................ 22
» BLOCK DIAGRAM .........................................24
» WAVEFORMS ................................................ 29
» SCHEMATIC DIAGRAM
HOTEL MODE APPLICATION ................. 31
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
(14U15)
(14U25)
MODELS
FEATURE
Ë Rear AV-In/Out Terminals
Ë Front AV-In & Front Headphone Jack (14U20/25 Only)
Ë Colour Comb Filter (NTSC Only)
Ë High Contrast Picture
Ë Hotel Mode
Ë Low STANDBY Power Consumption
Ë English OSD
CONTENTS
Page
WARNING
SHARP CORPORATION
COLOUR TELEVISION
Chassis No. UA-1
14U10/15
14U20/25
HEADPHONE UNIT AND
CRT SOCKET UNIT ................................ 32
MAIN Unit ................................................. 34
ELECTRICAL PARTS .............................. 43
MISCELLANEOUS PARTS ...................... 47
SUPPLIED ACCESSORIES .................... 48
PACKING PARTS ..................................... 48
CABINET PARTS ..................................... 48
14U10/15
14U20/25
S60C614U10///
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Summary of Contents for Sharp 14U10

  • Page 1: Table Of Contents

    » SCHEMATIC DIAGRAM CABINET PARTS ........48 » DESCRIPTION OF SCHEMATIC DIAGRAM .. 30 14U10, 14U15, 14U20, 14U25 HOTEL MODE APPLICATION ....31 WARNING The chassis in this receiver is partially hot. Use an isolation transformer between the line cord plug and power receptacle, when servicing this chassis.
  • Page 2 14U10/15 14U20/25...
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  • Page 11 14U10/15 14U20/25 MEMORY MAP ADDRESS DATA MICON E PROM E PROM CHASSIS CTV FINAL LAST INITIAL REMARK (HEX) DEFAULT RANGE WRITE(CPU) CHECK DATA CHECK TYPE CHECK DATA CHECK TYPE SETTING DATA PASS WORD 00-FF PASS WORD 00-FF PASS WORD 00-FF...
  • Page 12 14U10/15 14U20/25 ADDRESS DATA MICON E PROM E PROM CHASSIS CTV FINAL LAST INITIAL REMARK (HEX) DEFAULT RANGE WRITE(CPU) CHECK DATA CHECK TYPE CHECK DATA CHECK TYPE SETTING DATA SHARPNESS-OFFSET (SECAM) 00-0F SHARPNESS-OFFSET (N358) 00-0F SHARPNESS-OFFSET (N443) 00-0F 00-FF N443...
  • Page 13 14U10/15 14U20/25 ADDRESS DATA MICON E PROM E PROM CHASSIS CTV FINAL LAST INITIAL REMARK (HEX) DEFAULT RANGE WRITE(CPU) CHECK DATA CHECK TYPE CHECK DATA CHECK TYPE SETTING DATA TUNING FREQUENCY (HIGHER PART) POS 4 TUNING FREQUENCY (LOWER PART) S-SYS...
  • Page 14 14U10/15 14U20/25 ADDRESS DATA MICON E PROM E PROM CHASSIS CTV FINAL LAST INITIAL REMARK (HEX) DEFAULT RANGE WRITE(CPU) CHECK DATA CHECK TYPE CHECK DATA CHECK TYPE SETTING DATA TUNING FREQUENCY (LOWER PART) S-SYS (auto) C-SYS TUNING FREQUENCY (HIGHER PART)
  • Page 15 14U10/15 14U20/25 ADDRESS DATA MICON E PROM E PROM CHASSIS CTV FINAL LAST INITIAL REMARK (HEX) DEFAULT RANGE WRITE(CPU) CHECK DATA CHECK TYPE CHECK DATA CHECK TYPE SETTING DATA POS 46 TUNING FREQUENCY (HIGHER PART) POS 47 TUNING FREQUENCY (LOWER PART)
  • Page 16 14U10/15 14U20/25 ADDRESS DATA MICON E PROM E PROM CHASSIS CTV FINAL LAST INITIAL REMARK (HEX) DEFAULT RANGE WRITE(CPU) CHECK DATA CHECK TYPE CHECK DATA CHECK TYPE SETTING DATA TUNING FREQUENCY (HIGHER PART) POS 68 TUNING FREQUENCY (LOWER PART) S-SYS...
  • Page 17 14U10/15 14U20/25 ADDRESS DATA MICON E PROM E PROM CHASSIS CTV FINAL LAST INITIAL REMARK (HEX) DEFAULT RANGE WRITE(CPU) CHECK DATA CHECK TYPE CHECK DATA CHECK TYPE SETTING DATA POS 89 TUNING FREQUENCY (HIGHER PART) POS 90 TUNING FREQUENCY (LOWER PART)
  • Page 18 14U10/15 14U20/25 ADDRESS DATA MICON E PROM E PROM CHASSIS CTV FINAL LAST INITIAL REMARK (HEX) DEFAULT RANGE WRITE(CPU) CHECK DATA CHECK TYPE CHECK DATA CHECK TYPE SETTING DATA MODEL MODEL LETTER NO. LETTER NO.
  • Page 19 14U10/15 14U20/25...
  • Page 20 14U10/15 14U20/25...

  • Page 21: Solid State Device Base Diagram

    14U10/15 14U20/25 SOLID STATE DEVICE BASE DIAGRAM TOP VIEW COLLECTOR COLLECTOR :BG: BASE EMITTER BASE EMITTER M24C04W B709A FX0008GE D601A COLLECTOR BASE EMITTER IX3368CE 2SC2735 SIDE VIEW BASE 1 2 3 COLLECTOR BASE EMITTER COLLECTOR EMITTER 2SA1015 2SC2482 PST573J SE115N...

  • Page 22: Chassis Layout

    14U10/15 14U20/25 MODEL 14U10/15 CHASSIS LAYOUT...
  • Page 23 14U10/15 14U20/25 MODEL 14U20/25 CHASSIS LAYOUT...
  • Page 24 14U10/15 14U10/15 14U20/25 14U20/25 BLOCK DIAGRAM - 1/3:MODEL 14U10/15 MAIN BLOCK 24~25...
  • Page 25 14U10/15 14U10/15 14U20/25 14U20/25 BLOCK DIAGRAM - 2/3:MODEL 14U20/25 MAIN BLOCK 26~27...

  • Page 26: Block Diagram - 3/3

    14U10/15 14U20/25 BLOCK DIAGRAM - 3/3: MODEL 14U20/25 HEADPHONE BLOCK CRT BLOCK...

  • Page 27: Waveforms

    14U10/15 14U20/25 WAVEFORMS...

  • Page 28: Description Of Schematic Diagram

    14U10/15 14U20/25 DESCRIPTION OF SCHEMATIC DIAGRAM NOTES: SAFETY NOTES: 1. The unit of resistance "ohm" is omitted. 1. DISCONNECT THE AC PLUG FROM THE AC OUTLET BEFORE REPLACING PARTS. (K = 1000 ohms, M = Mega ohm). 2. SEMICONDUCTOR HEAT SINKS SHOULD BE REGARDED AS 2.

  • Page 29: 14U10, 14U15, 14U20, 14U25 Hotel Mode Application

    14U10/15 14U20/25 14U10, 14U15, 14U20, 14U25 HOTEL MODE APPLICATION How to enable/disable the "Hotel Mode" ? Ans: a) Press the R/C (FUNCTION) key until language selection appear, within five second press the (one/two digit) key and keep pressing it for five second, then you can see the hotel mode with four digits password.

  • Page 30: Crt Socket Unit

    14U10/15 14U20/25 SCHEMATIC DIAGRAM: MODEL 14U20/25 HEADPHONE UNIT CRT SOCKET UNIT...
  • Page 31 14U10/15 14U20/25 - M E M O -...

  • Page 32: Main Unit

    14U10/15 14U10/15 14U20/25 14U20/25 SCHEMATIC DIAGRAM: MODEL 14U10/15 MAIN Unit RESET 34~35...
  • Page 33 14U10/15 14U10/15 14U20/25 14U20/25 SCHEMATIC DIAGRAM: MODEL 14U20/25 MAIN Unit RESET 36~37...

  • Page 34: Printed Wiring Board Assemblies

    14U10/15 14U10/15 14U20/25 14U20/25 PRINTED WIRING BOARD ASSEMBLIES PWB-A: MAIN Unit (Wiring Side) 38~39...
  • Page 35 14U10/15 14U10/15 14U20/25 14U20/25 PWB-A: MAIN Unit (Component Side) 40~41...
  • Page 36 14U10/15 14U20/25 PWB-B: CRT Socket Unit (Wiring Side) PWB-C: HEADPHONE Unit (MODEL 14U20/25) (Wiring Side) (Component Side)

  • Page 37: Replacement Parts List

    (NOT REPLACEMENT ITEM) D602 VHD1SS119//-1 R 1SS119 D603 RH-DX0062CEZZ R DX0062CE D604 VHD1SS119//-1 R 1SS119 PWB-A DUNTK9988WEZ2 - Main Unit(14U10/15) — D605 RH-EX0840CEZZ R Zener Diode PWB-A DUNTK9988WEZ4 - Main Unit(14U20/25) — D606 VHD1SS119//-1 R 1SS119 PWB-B DUNTK9990WEZ4 - CRT Unit —...
  • Page 38 14U10/15 14U20/25 Ref. No. Part No. Description Code Ref. No. Part No. Description Code D756 RH-DX0471CEZZ R DX0471CE C314 VCEA0A1EW477M R 470 25V Electrolytic D757 RH-DX0471CEZZ R DX0471CE C315 VCKYPA1HF103Z R 0.01 50V Ceramic D758 RH-DX0461CEZZ R DX0471CE C317 VCEA0A1CW106M R 10...
  • Page 39 14U10/15 14U20/25 Ref. No. Part No. Description Code Ref. No. Part No. Description Code C650 VCKYCY1EF104Z R 0.1 25V Ceramic RJ16 VRS-CY1JF000J 1/16W Metal Oxide C654 VCEA0A1CW476M R 47 16V Electrolytic RJ21 VRS-CY1JF000J 1/16W Metal Oxide C700 VCQYTA2AA103K R 0.01...
  • Page 40 14U10/15 14U20/25 Ref. No. Part No. Description Code Ref. No. Part No. Description Code R233 VRS-CY1JF181J R 180 1/16W Metal Oxide R632 VRS-CY1JF273J R 27k 1/16W Metal Oxide R237 VRS-CY1JF272J R 2.7k 1/16W Metal Oxide R633 VRS-CY1JF102J R 1k 1/16W Metal Oxide...

  • Page 41: Miscellaneous Parts

    14U10/15 14U20/25 Ref. No. Part No. Description Code Ref. No. Part No. Description Code R1035 VRS-CY1JF332J R 3.3k 1/16W Metal Oxide DIODES R1036 VRS-CY1JF332J R 3.3k 1/16W Metal Oxide D811 VHD1SS119//-1 R 1SS119 R1037 VRD-RA2BE101J R 100 1/8W Carbon D812...

  • Page 42: Supplied Accessories

    (14U10/15) PACKING PARTS (NOT REPLACEMENT ITEM) 1-1 1-2 SPAKC0069KMZZ - Packing Case(14U20) — SPAKC0070KMZZ - Packing Case(14U25) — 14U10 SPAKC0071KMZZ - Packing Case(14U10) — SPAKC0072KMZZ - Packing Case(14U15) — SPAKP0677CEZZ - Wrapping Paper — SPAKX0018KMZZ - Packing Add. — SSAKA0031PEZZ - Polyethylene Bag —...
  • Page 43 14U10/15 14U20/25 Ref. No. Part No. Description Code Ref. No. Part No. Description Code...
  • Page 44 Code Ref. No. Part No. Description Code COPYRIGHT C 2000 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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14u1514u2014u25

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