Sharp 21V1-L Service Manual
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Sharp 21V1-L Service Manual

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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 indentical to those specified should be used.
IMPORTANT SERVICE SAFETY PRECAUTION ................................................................................................... 1-1
LOCATION OF USER'S CONTROL ...................................................................................................................... 2-1
INSTALLATION AND SERVICE INSTRUCTIONS ................................................................................................. 3-1
SERVICE MODE ..................................................................................................................................................... 4-1
ADJUSTMENT METHOD ........................................................................................................................................ 5-1
WAVEFORMS ......................................................................................................................................................... 6-1
CHASSIS LAYOUT ................................................................................................................................................. 7-1
BLOCK DIAGRAM .................................................................................................................................................. 8-1
DESCRIPTION OF SCHEMATIC DIAGRAM .......................................................................................................... 9-1
SCHEMATIC DIAGRAMS ......................................................................................................................................10-1
PRINTED WIRING BOARD ASSEMBLIES ........................................................................................................... 11-1
POWER INPUT............................AC 110-220 V, 50/60 Hz
POWER RATING .....................................................76W
PICTURE SIZE .............................1,239 cm
CONVERGENCE ............................................. Magnetic
SWEEP DEFLECTION .................................. .. Magnetic
FOCUS ......................................................... 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... ...................... 3.0 W(RMS) x 1pc

SHARP CORPORATION

SERVICE MANUAL

MODEL
CONTENTS

ELECTRICAL SPECIFICATIONS

SPEAKER
2
(192sq inch)
ANTENNA INPUT IMPEDANCE
TUNING RANGES
(Nominal)
COLOUR TELEVISION
Chassis No. GA8
Chassis No. GA6
SIZE ........................................................ 2" X 3.5", 1pc
VOICE COIL IMPEDANCE .................16 ohm at 400 Hz
VHF/UHF ........................................75 ohm Unbalanced
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.
This document has been published to be used for after
sales service only.
The contents are subject to change without notice.
21V1-L
S8811021V1L
21V1-L
Page

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  • Page 1: Table Of Contents

    21V1-L SERVICE MANUAL S8811021V1L COLOUR TELEVISION Chassis No. GA8 Chassis No. GA6 21V1-L 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 indentical to those specified should be used.

  • Page 2: Important Service Safety Precaution

    21V1-L CHAPTER 1. 21V1-L Service Manual 21V1-L Market IMPORTANT SERVICE SAFETY PRECAUTION IMPORTANT SERVICE SAFETY PRECAUTION Service work should be performed only by qualified service technicians who are thoroughly familiar with all safety checks and the servicing guidelines which follow:...
  • Page 3 21V1-L 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

    21V1-L CHAPTER 2. 21V1-L Service Manual 21V1-L Market LOCATION OF USER'S CONTROL [1] LOCATION OF USER'S CONTROL 2 – 1...

  • Page 5: Installation And Service Instructions

    21V1-L CHAPTER 3. 21V1-L Service Manual 21V1-L Market INSTALLATION AND SERVICE INSTRUCTIONS 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.

  • Page 6: Service Mode

    4 During Service mode, AFT operation is prohibited. The setting data for PLL is always set to fo data. 5 During Service mode, the following user data are set to default value and stored as last memory. PICTURE TINT COLOR BRIGHT SHARP COLOR TEMP. BASS TREBLE BALANCE MTS FAO SPEAKER ENERGY SAVE 6 During Service mode, OSD display for ON/OFF is toggled via [CH CALL] key.
  • Page 7 21V1-L Adjustment Mode Items Data Service Mode Function Range Default Data SUB-CON CONTRAST 0~127 SUB-TINT TINT 0~127 SUB-COL COLOR 0~127 SUB-BRI BRIGHT 0~255 SUB-SHP-PRE VIDEO-TONE(PRE) 0~63 SUB-SHP-OVER VIDEO-TONE(OVER) 0~63 V-SHIFT V-SHIFT H-SHIFT H-PHASE 0~31 RF-AGC RF-DELAY 0~127 V-SIZE V-SIZE 0~63...

  • Page 8: Auto Adjustment

    21V1-L AUTO ADJUSTMENT H-VCO 1. When there is H-VCO auto adjustment key input at item H-VCO, auto adjustment will be implemented. 2. H-FREE (1chip) is set to 1. 3. H-OUT (1chip) is set by intelligent monitor output. 4. IM input becomes TIM input.
  • Page 9 21V1-L Setting Mode Items Data Service Mode Function Range Default Data ABCL-Gain ABCL-G SHP-AV-PRE VIDEO-TONE (PRE) -16~+16 SHP-YUV-PRE VIDEO-TONE (PRE) -16~+16 SHP-P-PRE VIDEO-TONE (PRE) -31~+31 SHP-N3-PRE VIDEO-TONE (PRE) -31~+31 SHP-AV-OVER VIDEO-TONE (OVER) -16~+16 SHP-YUV-OVER VIDEO-TONE (OVER) -16~+16 SHP-P-OVER VIDEO-TONE (OVER)
  • Page 10 21V1-L Setting Mode Items (Continued) R-CUT-YUV R-CUT (OFFSET) -63~+63 G-CUT-YUV G-CUT (OFFSET) -63~+63 B-CUT-YUV B-CUT (OFFSET) -63~+63 R-DRI-YUV R-DRI (OFFSET) -63~+63 B-DRI-YUV B-DRI (OFFSET) -63~+63 CONTRAST OFFSET CONTRAST(OFFSET) -63~+63 F61 CONTRAST YUV OFFSET CONTRAST(OFFSET) -63~+63 BRIGHT OFFSET BRIGHT (OFFSET) -63~+63...
  • Page 11 21V1-L Setting Mode Items (Continued) SAP LEVEL SAP LEVEL STEREO SENS STEREO SENS F100 SAP SENS SAP SENS S-BOOSTER FREQ. F101 0~255 CHARACTERISTIC CONTROL F102 MEL1 0~255 S-BOOSTER LEVEL1 F103 MEL2 0~255 S-BOOSTER LEVEL2 F104 MEL3 0~255 S-BOOSTER LEVEL3 F105...
  • Page 12 21V1-L Setting Mode Items (Continued) F150 CORNER UP-LOW EN EW CNUPLOW EN F151 BOW/ANGLE-ON/OFF BOW/ANGLE 0(OFF)/1(ON) F152 SHP-NR-OFFSET VIDEO TONE -15~0 F153 V-FREE60 V-FREE60 F154 TAKEOFF TV TAKE-OFF F155 STRAP OFFSET S-TRAP ADJ -16~+16 4 – 7...

  • Page 13: Adjustment Method

    21V1-L CHAPTER 5. 21V1-L Service Manual 21V1-L Market ADJUSTMENT METHOD MODEL NAME 21V1-L ADJUSTMENT OPTION SET UP ITEM ADJUSTMENT REFER AS BELOW STEP RANGE REFER AS BELOW POSITION CONTROL PRE-ADJUST REQUIREMENT CONTENT INPUT CONDITION OSD CHECKING OUTPUT FOR THIRD STAGE SERVICE DATA...
  • Page 14 21V1-L MODEL NAME 21V1-L ADJ US TMENT BUS S ET UP ITEM ADJ US TMENT REFER AS BELOW S TEP RANGE REFER AS BELOW P OS ITION CONTROL P RE-ADJ US T REQUIREMENT CONTENT INP UT CONDITION OS D CHECKING...
  • Page 15 21V1-L MODEL NAME 21V1-L ADJ US TMENT H-P OS ITION ITEM ADJ US TMENT S TEP RANGE 0-31 P OS ITION I2C BUS CONTROL CONTROL P RE-ADJ US T OP TION S ET UP , BUS S ET UP ,CRT-P URITY...
  • Page 16 21V1-L MODEL NAME 21V1-L ADJ US TMENT V-S IZE ITEM ADJ US TMENT S TEP RANGE 0~63 P OS ITION I2C CONTROL CONTROL P RE-ADJ US T OP TION S ET UP , BUS S ET UP ,CRT P URITY, V-P HAS E , +B ADJ US T...
  • Page 17 21V1-L MODEL NAME 21V1-L ADJ US TMENT V-P HAS E ITEM ADJ US TMENT S TEP RANGE P OS ITION I2C CONTROL CONTOROL P RE-ADJ US T OP TION S ET UP , BUS S ET UP , CRT P URITY...
  • Page 18 21V1-L MODEL NAME 21V1-L ADJ US TMENT CLOS ED CAP TION S ET UP ITEM ADJ US TMENT S TEP RANGE 0 - 255 P OS ITION I2C CONTROL CONTROL P RE-ADJ US T OP TION S ET UP , BUS S ET UP...
  • Page 19 21V1-L MODEL NAME 21V1-L ADJ US TMENT H-VCO ITEM ADJ US TMENT S TEP RANGE 0 - 7 P OS ITION I2C CONTROL CONTROL P RE-ADJ US T OP TION S ET UP , BUS S ET UP REQUIREMENT NO S IGNAL (RAS TER) CONDITION...
  • Page 20 21V1-L MODEL NAME 21V1-L ADJ US TMENT P IF-VCO ITEM ADJ US TMENT S TEP RANGE 0 - 63 P OS ITION I2C CONTROL CONTROL P RE-ADJ US T OP TION S ET UP , BUS S ET UP REQUIREMENT...
  • Page 21 21V1-L MODEL NAME 21V1-L ADJ US TMENT RF-AGC ITEM ADJ US TMENT V 09 S TEP RANGE 0-127 P OS ITION I2C CONTROL CONTROL P RE-ADJ US T OP TION S ET UP , BUS S ET UP REQUIREMENT CONTENT...
  • Page 22 21V1-L MODEL NAME 21V1-L ADJ US TMENT S -TRAP ITEM ADJ US TMENT S TEP RANGE 0 - 127 P OS ITION I2C CONTROL CONTROL P RE-ADJ US T OP TION S ET UP , BUS S ET UP ,RF-AGC,VIF-VCO...
  • Page 23 21V1-L MODEL NAME 21V1-L ADJ US TMENT S CREEN ITEM ADJ US TMENT V15,V16,V17 S TEP RANGE 0~255 P OS ITION I2C CONTROL CONTROL P RE-ADJ US T OP TION S ET UP , BUS S ET UP REQUIREMENT WINDOW P ATTERN OR US 4CH LION HEAD...
  • Page 24 21V1-L MODEL NAME 21V1-L ADJ US TMENT WHITE BALANCE ITEM ADJ US TMENT V18,V19,V15,V16,V17 S TEP RANGE 0-127, 0~255 P OS ITION I2C BUS CONTROL CONTROL P RE-ADJ US T OP TION S ET UP , BUS S ET UP , S CREEN...
  • Page 25 21V1-L MODEL NAME 21V1-L ADJ US TMENT S UB-BRIGHT ITEM ADJ US TMENT S TEP RANGE 0-255 P OS ITION CONTROL I2C CONTROL P RE-ADJ US T OP TION S ET UP , BUS S ET UP , S CREEN, WHITE BALANCE...
  • Page 26 21V1-L MODEL NAME 21V1-L ADJ US TMENT S UB-P ICTURE ITEM ADJ US TMENT S TEP RANGE 0-127 P OS ITION I2C BUS CONTROL CONTROL P RE-ADJ US T OP TION S ET UP , BUS S ET UP , S CREEN, WHITE BALANCE, S UB-BRIGHTNES S...
  • Page 27 21V1-L MODEL NAME 21V1-L ADJ US TMENT S UB-TINT ITEM ADJ US TMENT S TEP RANGE 0-127 P OS ITION I2C CONTROL CONTROL P RE-ADJ US T OP TION S ET UP , BUS S ET UP , VCO ADJ , RF-AGC...
  • Page 28 21V1-L MODEL NAME 21V1-L ADJ US TMENT S UB-COLOR ITEM ADJ US TMENT S TEP RANGE 0-127 P OS ITION I2C BUS CONTROL CONTROL P RE-ADJ US T OP TION S ET UP , BUS S ET UP , VCO ADJ , RF-AGC,S UB-P ICT, S UB-TINT...
  • Page 29 21V1-L MODEL NAME 21V1-L ADJ US TMENT X-RAY P ROTECTION OP ERATING CONFIRMATION ITEM ADJ US TMENT S TEP RANGE P OS ITION CONTROL P RE-ADJ US T AFTER ALL ADJ US TMENT FINIS HED. REQUIREMENT US 4 CH LION HEAD (MONOS COP E P ATTERN)
  • Page 30 21V1-L MODEL NAME 21V1-L ADJ US TMENT HIGH VOLTAGE ITEM ADJ US TMENT S TEP RANGE P OS ITION CONTROL P RE-ADJ US T AFTER ALL ADJ US TMENT FINIS HED. REQUIREMENT CONTENT US 4 CH LION HEAD (MONOS COP E P ATTERN)

  • Page 31: Waveforms

    21V1-L CHAPTER 6. 21V1-L Service Manual 21V1-L Market WAVEFORMS WAVEFORMS (1)1.58 Vp-p (2)4.50 Vp-p (3)3.67 Vp-p (4)4.08 Vp-p Horiz. Rate Horiz. Rate Horiz. Rate Horiz. Rate (5)3.50 Vp-p (6)4.83 Vp-p (7)5.79 Vp-p (8)1.35 Vp-p Horiz. Rate Vert. Rate Horiz. Rate Vert.

  • Page 32: Chassis Layout

    21V1-L CHAPTER 7. 21V1-L Service Manual 21V1-L Market CHASSIS LAYOUT 7 – 1...

  • Page 33: Block Diagram

    21V1-L CHAPTER 8. 21V1-L Service Manual 21V1-L Market BLOCK DIAGRAM 8 – 1...
  • Page 34 21V1-L 8 – 2...
  • Page 35 21V1-L 8 – 3...

  • Page 36: Description Of Schematic Diagram

    21V1-L CHAPTER 9. 21V1-L Service Manual 21V1-L Market DESCRIPTION OF SCHEMATIC DIAGRAM DESCRIPTION OF SCHEMATIC DIAGRAM WAVEFORM MEASUREMENT CONDITIONS: NOTES: Photographs taken on a standard gated color bar 1. The unit of resistance "ohm" is omitted. signal, the tint setting adjusted for proper color. The (K=k Ω...

  • Page 37: Schematic Diagram

    21V1-L CHAPTER 10. 21V1-L Service Manual 21V1-L Market SCHEMATIC DIAGRAM 10 – 1...
  • Page 38 21V1-L 10 – 2...
  • Page 39 21V1-L 10 – 3...

  • Page 40: Printed Wiring Board Assemblies

    21V1-L CHAPTER 11. 21V1-L Service Manual 21V1-L Market PRINTED WIRING BOARD ASSEMBLIES 11 – 1...
  • Page 41 21V1-L 11 – 2...
  • Page 42 21V1-L 11 – 3...
  • Page 43 21V1-L 11 – 4...

  • Page 44: Parts Guide

    21V1-L PartsGuide PARTS GUIDE No. XXXXXXXXXXXX S8811021V1L XXXXXXXX 21V1-L MODEL CONTENTS PICTURE TUBE SUPPLIED ACCESSORIES PRINTED WIRING BOARD CABINET PARTS ASSEMBLIES PACKING PARTS MAIN UNIT INDEX CRT UNIT Parts marked with " " are important for maintaining the safety of the set. Be sure to replace these parts with specified ones for maintaining the safety and performance of the set.

  • Page 45: Picture Tube

    21V1-L PART PRICE PARTS CODE DESCRIPTION DELIVERY RANK MARK [1] PICTURE TUBE VB540ADAC1S1E SEMI-ITC Picture Tube RCILGA115WJN1 Degaussing Coil QEARC2107PEZZ Ground-Part PMAGF3046CEZZ Magnet [2] PRINTED WIRING BOARD ASSEMBLIES DUNTKE750WEA0 MAIN Unit DUNTKE751WEA0 CRT Unit [3] MAIN UNIT TU201 RTUNQA037WJZZ Tuner...
  • Page 46 21V1-L PRICE PARTS CODE PART DESCRIPTION RANK MARK DELIVERY [3] MAIN UNIT L802 VP-CF100K0000Y Peaking 10mH L803 VP-CF220K0000Y Peaking 22mH L804 QJUM-0001AJFWY Jumper wire L805 QJUM-0001AJFWY Jumper wire L807 QJUM-0001AJFWY Jumper wire L808 VP-CF100K0000Y Peaking 10mH SF201 RFILCA055WJQZS Coil T602...
  • Page 47 21V1-L PART PRICE PARTS CODE DESCRIPTION DELIVERY RANK MARK [3] MAIN UNIT C825 VCEA0A1HW474M+ 0.47 50V Electrolytic C826 VCEA0A1HW335M+ 3.3 50V Electrolytic C828 VCEA0A1HW474M+ 0.47 50V Electrolytic C830 VCKYCY1HB103KY 0.01 50V Ceramic C831 VCEA0A1CW107M+ 100 16V Electrolytic C832 VCKYCY1HB103KY 0.01 50V Ceramic...

  • Page 48: Main Unit

    21V1-L PRICE PARTS CODE PART DESCRIPTION RANK MARK DELIVERY [3] MAIN UNIT R513 VRD-RM2HD333JY 33K 1/2W Carbon R514 VRD-RM2HD562JY 5.6K 1/2W Carbon R520 VRS-CY1JF822JY 8.2K 1/16W Metal Oxide R523 VRS-CY1JF103JY 10K 1/16W Metal Oxide R524 VRS-CY1JF103JY 10K 1/16W Metal Oxide...

  • Page 49: Crt Unit

    21V1-L PART PRICE PARTS CODE DESCRIPTION DELIVERY RANK MARK [3] MAIN UNIT R1012 VRS-CY1JF183JY 18K 1/16W Metal Oxide R1013 VRS-CY1JF000JY 0 1/16W Metal Oxide R1014 QJUM-0001AJFWY Jumper wire R1015 VRS-CY1JF000JY 0 1/16W Metal Oxide R1016 VRD-RA2BE332JY 3.3K 1/8W Carbon R1017...

  • Page 50: Supplied Accessories

    21V1-L PRICE PARTS CODE PART DESCRIPTION RANK MARK DELIVERY [4] CRT UNIT R863 VRS-VV3DB153J 15K 12W Metal Oxide R864 VRD-RA2BE470JY 47 1/8W Carbon R876 VRS-CY1JF121JY 120 1/16W Metal Oxide R877 VRS-CY1JF121JY 120 1/16W Metal Oxide R878 VRS-CY1JF121JY 120 1/16W Metal Oxide...

  • Page 51: Cabinet Parts

    21V1-L [6] CABINET PARTS 21V1-L PRICE PARTS CODE PART DESCRIPTION RANK MARK DELIVERY [6] CABINET PARTS CCABAC054WEV0 Front Cabinet Ass'y Not Available Front Cabinet JBTN-A751WJSA Power Button MSPRC0005PEFW Power Button Spring GCOVAC834WJSA R/C & LED Cover JBTN-A752WJSA Control Button HBDGBA085WJSA...

  • Page 52: Packing Parts

    21V1-L [7] PACKING PARTS PAC K ING OF T HE S HE E T S S AK A0001P E ZZ *P olyethylene B ag Operation Manual B atteries Infra R ed R /C Unit S PAK P 0099P E ZZ...
  • Page 53 21V1-L INDEX PRICE PART PARTS CODE RANK MARK RANK [ C ] CCABAC054WEV0 CCABBB309WEV0 [ D ] DUNTKE750WEA0 DUNTKE751WEA0 [ G ] GCOVAC834WJSA 6-1-4 [ H ] HBDGBA085WJSA 6-1-6 [ J ] JBTN-A751WJSA 6-1-2 JBTN-A752WJSA 6-1-5 [ L ] LHLDW1104PEZZ 3-P602 "...
  • Page 54 21V1-L PRICE PART PARTS CODE RANK MARK RANK " 3-D721 " 3-D1081 RH-DX0247CEZZ 3-D752 RH-DX0302CEZZ 3-D393 RH-DX0441CEZZY 3-D505 RH-DX0476CEZZ 3-D701 RH-DX049WJZZY 3-D510 " 3-D606 RH-DXA055WJZZ 3-D751 RH-EXA520WJZZY 3-D806 " 3-D1006 " 3-D1009 RH-EXA535WJZZY 3-D807 " 3-D808 " 3-D809 RH-HXA013WJZZ 3-NR701...
  • Page 55 21V1-L PRICE PART PARTS CODE RANK MARK RANK PRICE PART PRICE PART PARTS CODE PARTS CODE RANK MARK RANK RANK MARK RANK VCEA0A1HW476M+ 3-C719 VHEZJ36C+++1EY 3-D736 VCEA0A1VW477M+ 3-C511 VHEZJ5R1A++1EY 3-D750 VCEA0A2EW336M+ 3-C604 VHEZJ5R1B++1EY 3-D503 VCEA9M1HW105M+ 3-C1018 " 3-D754 VCEA9M1HW475M+ 3-C843...
  • Page 56 21V1-L PRICE PART PRICE PART PARTS CODE PARTS CODE RANK MARK RANK RANK MARK RANK VRS-CY1JF000JY 3-RJ2 VRS-CY1JF274JY 3-R305 " 3-R526 VRS-CY1JF331JY 3-R849 " 3-RJ15 " 3-R854 " 3-RJ16 " 3-R855 " 3-RJ18 VRS-CY1JF332JY 3-R366 " 3-RJ19 " 3-R384 "...
  • Page 57 21V1-L...
  • Page 58 EndPage © COPYRIGHT 2008 BY SHARP CORPORATION COPYRIGHT XXXX BYSHARP CORPORATION ALL RIGHTS RESERVED. No part of this publication may be reproduced, stored in a retrieval system, or transmitted in © COPYRIGHT XXXX BYSHARP CORPORATION any form or by any means, electronic, mechanical, photocopying, recording, or otherwise, without prior written permission of the publisher.

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