Service manual

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SERVICE MANUAL

COLOUR TELEVISION

Chassis No. GA-8P (VE)

21G-FX10L(A)

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.

S61015821GFX10L(A)

MODEL

ELECTRICAL SPECIFICATIONS

CONTENTS

IMPORTANT SERVICE SAFETY PRECAUTION ................................................................................................... 1-1

Page

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

Parts Guide

POWER INPUT.......................... AC 110-220 V, 50/60 Hz

POWER RATING .................................................... 78W

PICTURE SIZE ............................ 1,239 cm

(192sq inch)

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

(Nominal)

AUDIO POWER

OUTPUT RATING......................... 3.0 W (RMS) x 2pcs

SPEAKER

SIZE ........................................................ 9 x 5cm, 2pcs

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

(EIA, Channel Plan U.S.A.)

Specifications are subject to change without

prior notice.

SHARP CORPORATION

This document has been published to be used for after sales service only.

21G-FX10L(A)

The contents are subject to change without notice.

Summary of content (45 pages)

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21G-FX10L(A) SERVICE MANUAL S61015821GFX10L(A) COLOUR TELEVISION Chassis No. GA-8P (VE) MODEL 21G-FX10L(A) 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. CONTENTS Page IMPORTANT SERVICE SAFETY PRECAUTION ................................................................................................... 1-1 LOCATION OF USER’S CONTROL ...................
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1G-FX10L(A) CHAPTER 1. IMPORTANT SERVICE SAFETY PRECAUTION Service Manual TV E Market 21G-FX10L(A) 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: 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.
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21G-FX10L(A) IMPORTANT SERVICE SAFETY PRECAUTION (Continued) BEFORE RETURNING THE RECEIVER (Fire & Shock Hazard) Before returning the receiver to the user, perform the following safety checks. 1. Inspect all lead dress to make certain that leads are not pinched or that hardware is not lodged between the chassis and other metal parts in the receiver. 2.
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21G-FX10L(A) CHAPTER 2.
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21G-FX10L(A) CHAPTER 3. INSTALLATION AND SERVICE INSTRUCTIONS Service Manual TV E Market 21G-FX10L(A) 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 3.15A fuse (F701), mounted on PWB-A, wired into one side of the AC line input.
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21G-FX10L(A) CHAPTER 4. SERVICE MODE Service Manual TV E Market 21G-FX10L(A) SERVICE MODE 1. Service mode is switched by SERVICE key, CH UP + VOL DOWN when reset. 2. Service mode is cancelled by SERVICE key during Service mode. 3. Service mode can be switched to the following 5 modes via MENU key: First mode of service when entering by SERVICE key. Adjustment mode Setting mode First mode of service when entering by 2 local keys.
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21G-FX10L(A) 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. 5. H-VCO (1chip) data is changed so that the number is 126 inside 8ms interval. 6. When adjustment is completed, OSD display and H-VCO auto adjustment data of EERPOM are updated. 7. H-FREE (1chip), intelligent monitor output, IM input mode are recovered.
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21G-FX10L(A) CHAPTER 5. ADJUSTMENT METHOD Service Manual TV E Market 21G-FX10L(A) Memory Map Data Caution: To get into the service mode, one of the ways is press direct key for service items.
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21G-FX10L(A) SETTING MODE (Second Stage) EEPROM ITEMS OSD ABCL-Gain SHP-AV-PRE SHP-YUV-PRE SHP-P-PRE SHP-N3-PRE SHP-AV-OVER SHP-YUV-OVER SHP-P-OVER SHP-N3-OVER SHP ANT-ON II OFFSET RGB-CLIP E-SAVE F01 F02 F03 F04 F05 F06 F07 F08 F09 F10 F11 F12 FAO-VOL F13 VIF-G YDL-TV YDL-TV-P YDL-TV-N3 YDL-AV YDL-AV-P YDL-AV-N3 YDL-YUV TINT-AV COL-AV COL-P COL-N3 R-R R-B B-R B-B GAMMA BS-D BS-C SL-TV SL-AV SL-YUV AFC2 VD-TV VD-AV VD-YUV AS-TV AS-AV AS-YUV FBP-TV FBP-AV FBP-YUV C.
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21G-FX10L(A) SETTING MODE (Second Stage) EEPROM ITEMS OSD CONTRAST OFFSET CONTRAST YUV OFFSET BRIGHT OFFSET BRIGHT AV2 OFFSET BRIGHT YUV OFFSET TRAP TRAP-P TRAP-N3 AFC1-Gain-TV AFC1-Gain-AV AFC1-Gain-YUV OM-DET ˞˯ˉˣ˽̅̊ C-ANGLE ˲ˉˠ˨ ˱ˉˠ˨ AS-SPEED-DN AS-SPEED-UP CR-PEDESTEL-ADJ CB-PEDESTEL-ADJ SIF-BPF-WIDE SIF-BPF-WIDE-LOW SIF-BPF-WIDE-HIGH F60 F61 F62 F63 F64 F65 F66 F67 F68 F69 F70 F71 F72 F73 F74 F75 F76 F77 F78 F79 F80 F81 F82 COL-SYSTEM F83 Pow-Storage SIF45 GAIN DOWN S-TRAP OFF BASS OFFSET MID1 OF
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21G-FX10L(A) SETTING MODE (Second Stage) EEPROM ITEMS OSD S-Sp-Point S-Step CONT NEWS CONT MUSIC CONT MOVIE BRIGHT NEWS BRIGHT MUSIC BRIGHT MOVIE COL NEWS COL MUSIC COL MOVIE SHARP NEWS SHARP MUSIC SHARP MOVIE SURR NEWS SURR MUSIC SURR MOVIE TREBLE NEWS TREBLE MUSIC TREBLE MOVIE BASS NEWS BASS MUSIC BASS MOVIE EQ BASS NEWS EQ BASS MUSIC EQ BASS MOVIE EQ MID1 NEWS EQ MID1 MUSIC EQ MID1 MOVIE EQ MID2 NEWS EQ MID2 MUSIC EQ MID2 MOVIE EQ MID3 NEWS EQ MID3 MUSIC EQ MID3 MOVIE EQ TRE NEWS EQ TRE MUSIC EQ TRE MO
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21G-FX10L(A) Setting Mode (Third stage) Data O01 O02 O03 O04 O05 O06 O07 O08 O09 O10 O11 O12 O13 O14 O15 O16 O17 O18 O19 O20 O21 O22 O23 O24 O25 O26 O27 O28 O29 O30 O31 OPTION FUNCTION Description 0 : ALPS 1 : MATSUSHITA FAO DIS/ENA * PON-CH DIS/ENA ANTENNA BOOSTER DIS/ENA AV DIS/ENA 0 : AV1 AV2 1 : AV2 MTS DIS/ENA 0 : without COMPONENT COMPONENT 1 : COMPONENT (share with AV1) 2 : COMPONENT (individual) 0 : Without Sound Menu TONE-CTRL 1 : TONE 2 : EQUALIZER 3 : Without Sound Menu (GA8P) AUTO-OFF DIS/
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21G-FX10L(A) ADJUSTMENT PRECAUTION : Make sure TV Set is in "NORMAL CONDITION" before switch to Service Mode for Adjustment. PIF ADJUSTMENT CHECKING NO 1 ADJUSTMENT POINT RF-AGC TAKE OVER POINT ADJUSTMENT (I2C BUS CONTROL) (AUTO & MANUAL ADJ) ADJUSTMENT CONDITION/PROCEDURE (1) Receive the "US 10 CH HALF Color Bar" signal. Signal Strength: 56 ± 1dBμV (75 ohm open) (2) Connect the oscilloscope to JA402 (Tuner's AGC Terminal) as shown in figure 3-1. + OSCILLOSCOPE 0.
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21G-FX10L(A) HORIZONTAL, VERTICAL, DEFLECTION LOOP ADJUSTMENT NO ADJUSTMENT POINT 1 V-SHIFT ADJUSTMENT CONDITION / PROCEDURE (1) Receive US4 CH LION HEAD Signal (NTSC 60 Hz). WAVEFORM OR OTHERS Figure A B (I2C BUS CONTROL) (2) Choose the service data V07. (3) Adjust V07 to align the center of the screen to the geometric center of CRT. Note: B line (Monoscope middle line) must same or nearest higher position to the A mark (Tube middle mark), refer to the attach drawing.
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21G-FX10L(A) CLOSED CAPTION ADJUSTMENT NO ADJUSTMENT POINT 1 CLOSED CAPTION SET UP ADJUSTMENT CONDITION / PROCEDURE (1) Receive US4 CH LION HEAD Signal (NTSC 60 Hz) (2) Go to service mode, choose service data V22. (3) Adjust the V22 bus data to have a balance position to spec of A=B (4) After the left and right symmetrical then V22 data reduce 5 step.
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21G-FX10L(A) NO ADJUSTMENT POINT 3 SUB-BRIGHTNESS ADJUSTMENT CONDITION / PROCEDURE WAVEFORM OR OTHERS (1) In CH 23 50IRE window pattern signal condition. (to be done after screen, (2) Using Minolta Color Analyzer CA-100, let the gun point at Dark White position white balance adj) US14 (as attach drawing), adjust V04 Bus data until BRIGHTNESS Y = 1.
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21G-FX10L(A) PROTECTOR OPERATION CHECKING NO 1 2 ADJUSTMENT POINT H, V PROTECTOR ADJUSTMENT CONDITION / PROCEDURE (1) Receive US 4 CH LION HEAD Signal (NTSC 60 Hz). (2) Connect output of Bias Box to D602 cathode (C602 positive). (3) Set voltage of Bias Box to 18V and make sure the protector is not working. (4) Set voltage of Bias Box to 28.5V. Make sure the protector is functioned, horizontal oscilation stop and picture disappear.
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21G-FX10L(A) FUNCTION OPERATION CHECKING (VIDEO & AUDIO) (1) E ADJUSTMENT CONDITION / PROCEDUR NO ADJUSTMENT POINT (1) Receive "US 4 CH LION HEAD Signal (NTSC 60 Hz)" signal. PICTURE Key 1 (2) Press to Menu mode, then select Picture Mode and set to select CONTRAST. (3) Press Volume Up/Down key to check whether the CONTRAST effect is OK or not.
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21G-FX10L(A) CHECKING FUNCTION OPERATION (VIDEO & AUDIO) (2) NO ADJUSTMENT POINT 8 NOISE MUTE CHECKING ADJUSTMENT CONDITION / PROCEDURE WAVEFORM OR REMARKS (1) Receive mono-tone signal. (2) Turn up the volume control to maximum, make sure the sound is heard from the speakers. Then put the unit in no signal state. (3) Check the sound mute is effective. (4) Finally turn sound level of CTV to minimum. 6 OSD LANGUAGE (1) Check OSD LANGUAGE quantity and type for respective model.
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21G-FX10L(A) CHAPTER 6. WAVEFORMS Service Manual TV E Market 21G-FX10L(A) (1) 1.92 Vp-p (2) 4.85 Vp-p (3) 3.70 Vp-p (4) 3.85 Vp-p Horiz. Rate Horiz. Rate Horiz. Rate Horiz. Rate (5) 3.01 Vp-p (6) 4.72 Vp-p (7) 5.70 Vp-p (8) 1.33 Vp-p Horiz. Rate Vert. Rate Horiz. Rate Vert. Rate (9) 2.45 Vp-p (10) 40.80 Vp-p (11) 1086 Vp-p (12) 53.20 Vp-p Horiz. Rate Horiz. Rate Horiz. Rate Vert. Rate (13) 6.78 Vp-p (14) 144.00 Vp-p (15) 483.00 Vp-p (16) 118.80 Vp-p Vert. Rate Horiz.
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G-FX10L(A) CHAPTER 7.
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21G-FX10L(A) CHAPTER 8.
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21G-FX10L(A) 10 11 12 13 14 15 8–2 16 17 18 19
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21G-FX10L(A) H G F E D C B A 1 2 3 4 6 5 8–3 7 8 9 10
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21G-FX10L(A) CHAPTER 9. DESCRIPTION OF SCHEMATIC DIAGRAM Service Manual TV E Market 21G-FX10L(A) DESCRIPTION OF SCHEMATIC DIAGRAM DESCRIPTION OF SCHEMATIC DIAGRAM NOTES: 1. The unit of resistance "ohm" is omitted. (K=kΩ=1000Ω, M=MΩ) 2. All resistors are 1/16 watt, unless otherwise noted. 3. All capacitors are μF, unless otherwise noted. (P=pF=μμF) 4. (G) indicates ±2% tolerance may be used. 5. indicates line isolated ground. VOLTAGE MEASUREMENT CONDITIONS: 1.
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21G-FX10L(A) CHAPTER 10.
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21G-FX10L(A) 10 11 12 13 14 15 10 – 2 16 17 18 19
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21G-FX10L(A) H G F E D C B A 1 2 3 4 6 5 10 – 3 7 8 9 10
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21G-FX10L(A) CHAPTER 11.
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21G-FX10L(A) H G F E D C B A PWB-A : MAIN UNIT ( Chip Parts Side ) 1 2 3 4 6 5 11 – 2 7 8 9 10
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21G-FX10L(A) H G F E D C B PWB-B : CRT UNIT ( Wiring Side ) A 1 2 3 4 6 5 11 – 3 7 8 9 10
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21G-FX10L(A) H G F E D C B PWB-B : CRT UNIT ( Chip Parts Side ) A 1 2 3 4 6 5 11 – 4 7 8 9 10
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21G-FX10L(A) PARTS GUIDE No. 21G-FX10L(A) 21G-FX10L(A) MODEL CONTENTS PartsGuide [1] PICTURE TUBE [2] PRINTED WIRING BOARD ASSEMBLIES ( NOT REPLACEMENT ITEM ) [3] MAIN UNIT [4] CRT UNIT [5] MISCELLANEOUS PARTS [6] SUPPLIED ACCESSORIES [7] CABINET PARTS [8] PACKING PARTS ( NOT REPLACEMENT ITEM ) INDEX 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.
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21G-FX10L(A) NO.
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21G-FX10L(A) NO.
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21G-FX10L(A) NO.
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21G-FX10L(A) NO.
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21G-FX10L(A) NO.
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21G-FX10L(A) NO.
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[7] CABINET PARTS 1-1 1 1-6 1-7 1-2 1-3 1-4 2 1-5 2-1 2-2 NO.
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21G-FX10L(A) [8] PACKING PARTS ( NOT REPLACEMENT ITEM ) 6 SSAKA0001PEZZ *Polyethylene Bag Operation Manual Batteries 4 Infra Red R/C Unit SPAKP0099PEZZ * Wrapping Sack 5 SPAKXC550WJZZ *Buffer Material 3 SPAKCF689WJZZ * Packing Case USE 2 PACKING TAPES FIX THE PACKING CASE MARK *: Not replacement items NO.
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21G-FX10L(A) INDEX PARTS CODE No.
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21G-FX10L(A) PARTS CODE VCEA0A1HW107M+ VCEA0A1HW225M+ " " " " VCEA0A1HW335M+ VCEA0A1HW474M+ " " " " " VCEA0A1HW475M+ VCEA0A1HW476M+ VCEA0A1HW477M+ VCEA0A2EW336M+ VCEACA1HC335J+ VCFPKH2ED153J VCFPKH2ED244J VCFPVC3ZA123H VCFYAA2AA224J+ VCFYFA1HA104J+ " VCFYFA1HA105J+ VCFYFA1HA154J+ VCFYFA1HA224J+ VCKYCY1CB393KY VCKYCY1CF105ZY " VCKYCY1EF104ZY " VCKYCY1HB102KY VCKYCY1HB103KY " " " VCKYCY1HB104KY " " " VCKYCY1HB153KY " VCKYCY1HB221KY VCKYCY1HB222KY VCKYCY1HB332KY " VCKYCY1HB561KY VCKYCY1HF103ZY " " " " " VCKYPA
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21G-FX10L(A) PARTS CODE " " " " " " " " " " " " " " " " " VRS-CY1JF101JY " " " VRS-CY1JF102JY " " " " " " " " " " VRS-CY1JF103JY " " " " " " " " " VRS-CY1JF104JY " " VRS-CY1JF105JY VRS-CY1JF121JY " " " VRS-CY1JF122JY VRS-CY1JF123JY VRS-CY1JF124JY VRS-CY1JF151JY " VRS-CY1JF152JY VRS-CY1JF153JY VRS-CY1JF154JY VRS-CY1JF181JY " " VRS-CY1JF183JY " " " " VRS-CY1JF221JY VRS-CY1JF222JY " " " VRS-CY1JF223JY VRS-CY1JF332JY " VRS-CY1JF333JY VRS-CY1JF391JY " " " VRS-CY1JF392JY " VRS-CY1JF470JY No.
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EndPage 2010 BY SHARP CORPORATION CORPORATION COPYRIGHT COPYRIGHT © XXXX BYSHARP 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, COPYRIGHT © XXXX BYSHARP CORPORATION photocopying, recording, or otherwise, without priorALL written permission of the publisher. RIGHTS RESERVED.