Sharp 29fl90 Service Manual

Table of Contents

Quick Links

Download this manual

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 ..................................................................................................... 4

» INSTALLATION AND SERVICE INSTRUCTIONS ................................................................................ 5

» SERVICE ADJUSTMENT ..................................................................................................................... 9

» CHASSIS LAYOUT ............................................................................................................................. 12

» BLOCK DIAGRAM .............................................................................................................................. 13

» SCHEMATIC DIAGRAMS ................................................................................................................... 14

» PRINTED WIRING BOARD ASSEMBLIES ........................................................................................ 25

» REPLACEMENT PARTS LIST ............................................................................................................ 30

» PACKING OF THE SET ...................................................................................................................... 41

POWER INPUT ..................................................... 120V AC, 60 Hz

POWER RATING .................................................................. 152W

PICTURE SIZE ....................................... 2,193.5 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 .............. 5.0W + 5.0W (at 10% distortion and

SHARP CORPORATION

SERVICE MANUAL

MODEL

CONTENTS

ELECTRICAL SPECIFICATIONS

SPEAKER

SIZE ........................................................ 12 x 6 cm oval (2 pcs.)

(339sq inch)

VOICE COIL IMPEDANCE ............................... 8 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)

Dual CH Operate)

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. MS-B

29FL90

S92P229FL90//

Page

Table of Contents

Summary of Contents for Sharp 29fl90

Page 1: Table Of Contents
29FL90 SERVICE MANUAL S92P229FL90// COLOR TELEVISION Chassis No. MS-B 29FL90 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: Important Service Safety Precaution
29FL90 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: Safety Notice
29FL90 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 Before returning the receiver to the user, perform across the resistor.
Page 4: Location Of User's Control
29FL90 LOCATION OF USER'S CONTROL Front Panel VIDEO/AUDIO IN 2 POWER TERMINALS Press POWER MENU – VOL + PULL-OPEN Press again Off. (INSIDE DOOR) POWER MENU – VOL + CHANNEL UP/DOWN SENSOR AREA FOR ( ) Selects next higher REMOTE CONTROL channel.
Page 5: Installation And Service Instructions
29FL90 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 6 29FL90 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 adjustment is required. See "Table-B" to determine, if serv- ice adjustments are required.
Page 7 29FL90 DATA SERVICE ADJUSTMENT ITEM ADJUSTMENT CONTENTS NUMBER RANGE INITIAL VALUE PICTURE 3(03h) 0-15(00h-0Fh) TINT 62(3Eh) 0-127(00h-7Fh) COLOR 45(2Dh) 0-127(00h-7Fh) SCREEN 16(10h) 0-31(00h-1Fh) Must be set to “10” BRIGHT 77(4Dh) 0-127(00h-7Fh) R CUT-OFF 64(40h) 64-255(40h-FFh) G CUT-OFF 64(40h) 64-255(40h-FFh) B CUT-OFF...
Page 8 29FL90 DATA SERVICE ADJUSTMENT ITEM ADJUSTMENT CONTENTS NUMBER RANGE INITIAL VALUE V-S CORRECTION 8(08h) 0-15(00h-0Fh) Must be set to “08” EW PARABOLA 33(21h) 0-63(00h-3Fh) Must be set to “04” EW TRAPEZIUM 14(0Eh) 0-31(00h-1Fh) Must be set to “0E” EW CORNER...
Page 9: Service Adjustment
29FL90 SERVICE ADJUSTMENT RF AGC Adjustment Sub-picture and Sub-Bright Adjustments 1. Receive a good local channel. 1. Receive the window pattern signal. • RF INPUT 2. Enter the service mode and select the service adjustment "R01". 2. Get into service adjustment data "V01" and "V05" and 3.
Page 10 29FL90 Focus Adjustment Horizontal-Size Adjustment 1. Receive a good local channel. 1. Receive a good local channel. 2. Adjust the VR-1 (upper knob) of the flyback 2. Enter the service mode and select the service transformer to make the image as fine as possible.
Page 11: Mts Adjustment
29FL90 Ë MTS ADJUSTMENT MTS Level Adjustment 1. Set the sound volume above 1. Monoral signal: 400Hz, 100% modulation 2. Confirm "M01" data is "09h". 3. Vary the "EX4" bus data until the voltage to pin (39) of IC3001. 4. Become the value as stated below.
Page 12: Chassis Layout
29FL90 CHASSIS LAYOUT...
Page 13: Block Diagram
29FL90 BLOCK DIAGRAM...
Page 14: Schematic Diagrams
29FL90 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 15 29FL90 SCHEMATIC DIAGRAM: CRT Unit...
Page 16 SCHEMATIC DIAGRAM: MAIN-1 Unit 16~17...
Page 17 SCHEMATIC DIAGRAM: MAIN-2 Unit 18~19...
Page 18 SCHEMATIC DIAGRAM: AV Unit 20~21...
Page 19 SCHEMATIC DIAGRAM: MTS MODULE Unit 22~23...
Page 20 29FL90 SCHEMATIC DIAGRAM: DF MODULE Unit...
Page 21: Printed Wiring Board Assemblies
29FL90 PRINTED WIRING BOARD ASSEMBLIES PWB-B: CRT Unit (Wiring Side) PWB-S: MTS MODULE Unit (Wiring Side) R3010 C3035 R3012 C3036 R3011 RJ10 R3008 C3013 R3007 FDC1 IC3001 FDC2 C3008 R3534 C3002 R3533 IC3301 R3003 R3301 R2532 R2531 PWB-S: MTS MODULE Unit (Chip Parts Side)
Page 22 29FL90 PWB-A: MAIN Unit (Wiring Side)
Page 23 29FL90 PWB-A: MAIN Unit (Chip Parts Side)
Page 24 29FL90 PWB-C: AV Unit (Wiring Side) RJ15 Q1909 R1430 C1951 RJ13 R1422 R1424 C1922 Q1404 Q1408 Q1401 Q1405 Q1407 C1429 C1414 R1432 R1407 R1436 R1433 FDC1 C1424 R1434 R1437 R1427 RJ14 C1423 Q1406 C1422 R1401 IC1900 R1462 R1473 C1470 R1459...
Page 25 29FL90 PWB-H: DF MODULE Unit (Wiring Side)
Page 26: Replacement Parts List
29FL90 Ref. No. Part No. Description Code Ref. No. Part No. Description Code PARTS LIST PWB-A: DUNTKA526WEG5 PARTS REPLACEMENT MAIN UNIT Replacement parts which have these special safety characteristics iden- TUNER tified in this manual ; electrical components having such features are NOTE: THE PARTS HERES SHOWN ARE SUPPLIED AS AN identified by å...
Page 27 29FL90 Ref. No. Part No. Description Code Ref. No. Part No. Description Code PWB-A: DUNTKA526WEG5 RCRSB0278CEZZ MAIN UNIT (Continued) FILTERS AND COILS CF202 RFiLC0447CEZZ J Ceramic Filter VS2SC1623L61E CF403 RFiLC0446CEZZ J Ceramic Filter Q2002 VS2SA1266-Y-1+ J 2SA1266-Y CF2040 RFiLA0099CEZZ+ X Ceramic Filter...
Page 28 29FL90 Ref. No. Part No. Description Code Ref. No. Part No. Description Code PWB-A: DUNTKA526WEG5 C725 RC-EZ0810CEZZ J 330 160V EL. å C726 VCKYPH3DB561K J 560p 2kV Ceramic MAIN UNIT (Continued) C727 VCKYPH3DB561K J 560p 2kV Ceramic C730 VCEA4A1VN108M+ X 1000 35V...
Page 29 29FL90 Ref. No. Part No. Description Code Ref. No. Part No. Description Code PWB-A: DUNTKA526WEG5 R372 VRS-CY1JF223J* J 22k 1/16W M-Ox. R415 VRS-CY1JF101J* J 100 1/16W M-Ox. MAIN UNIT (Continued) R430 VRD-RA2BE331J* X 330 1/8W Carbon R431 VRS-CY1JF331J* J 330 1/16W M-Ox.
Page 30 29FL90 Ref. No. Part No. Description Code Ref. No. Part No. Description Code PWB-A: DUNTKA526WEG5 R817 VRS-CY1JF272J* J 2.7k 1/16W M-Ox. R818 VRS-CY1JF272J* J 2.7k 1/16W M-Ox. MAIN UNIT (Continued) R819 VRS-CY1JF101J* J 100 1/16W M-Ox. R820 VRS-CY1JF101J* J 100 1/16W M-Ox.
Page 31 29FL90 Ref. No. Part No. Description Code Ref. No. Part No. Description Code PWB-A: DUNTKA526WEG5 FH702 QFSHD1014CEZZ+ J Fuse Holder J901 QTANJ0540CEZZ X Terminal, Input-1 MAIN UNIT (Continued) J902 QTANJ0655CEZZ J Terminal, Input-3/Component R2066 VRS-CY1JF103J* J 10k 1/16W M-Ox. J904...
Page 32: Crt Unit
29FL90 Ref. No. Part No. Description Code Ref. No. Part No. Description Code R874 VRD-RM2HD154J* X 150k 1/2W Carbon PWB-B: DUNTKA527WEC3 R875 VRD-RM2HD154J* X 150k 1/2W Carbon CRT UNIT R876 VRD-RM2HD154J* X 150k 1/2W Carbon R877 VRD-RA2BE103J* X 10k 1/8W Carbon å...
Page 33 29FL90 Ref. No. Part No. Description Code Ref. No. Part No. Description Code PWB-C: DUNTKA602WEA1 C1454 VCKYCY1HF103Z* J 0.01 Ceramic C1455 VCKYCY1HF103Z* J 0.01 Ceramic AV UNIT C1456 VCKYCY1CF104Z* J 0.1 Ceramic C1457 VCEA0A1CW106M+ J 10 INTEGRATED CIRCUITS C1458 VCEA0A1CW106M+ J 10 C1460 VCKYCY1HF103Z* J 0.01...
Page 34 29FL90 Ref. No. Part No. Description Code Ref. No. Part No. Description Code PWB-C: DUNTKA602WEA1 PWB-H: DUNTKB225WEA4 AV UNIT(Continued) DF MODULE UNIT INTEGRATED CIRCUITS R1458 VRD-RA2BE103J* X 10k 1/8W Carbon R1459 VRS-CY1JF821J* J 820 1/16W M-Ox. IC1680 VHiKiA358P+-1 R KiA358P R1466 VRS-CY1JF123J* J 12k 1/16W M-Ox.
Page 35 29FL90 Ref. No. Part No. Description Code Ref. No. Part No. Description Code PWB-S: DUNTKB224WEA2 MTS MODULE UNIT INTEGRATED CIRCUITS IC3001 VHiCXA2074Q-1* X CXA2074Q CAPACITORS [EL.··· Electrolytic] C3001 VCE9GA1HW475M+ J 4.7 EL._ (N.P) AB C3002 VCKYCY1HB562K* J 5600p 50V Ceramic C3003 VCQYTA1HM123J+ J 0.012 50V...
Page 36: Packing Parts
X Front Cabinet Ass'y LX-TZ0104GJFD X CRT Screw, x4 Not Available – Front Cabinet — LX-WZ0112GJFD X CRT Washer, x8 HBDGB3141CESA J "SHARP" Badge QCNW-0165GJZZ X Connecting Cord(EJ) HDECQ0105GJSA X RC/LED Cover QCNW-A378WJZZ X Connecting Cord JBTN-0128GJKA X Button, Menu,...
Page 37: Packing Of The Set
29FL90 PACKING OF THE SET Polyethylene Bag Operation Manual Infrared R/C Unit Batteries Polyethylene Sheet Buffer Material FRONT Packing Case Use tape to fix the top side of packing case. REAR Use 12 staples to fix the bottom side of packing case.
Page 38 29FL90 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 29fl90 Service Manual

Quick Links

SHARP CORPORATION

SERVICE MANUAL

Related Manuals for Sharp 29fl90

Summary of Contents for Sharp 29fl90

Table of Contents