Sharp 21L-FG1RU Service Manual
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Sharp 21L-FG1RU 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 identical to those specified should be used.
Multi 18 Systems
Full Auto Channel Preset and Auto
Channel Skip
100-CH Program Memory
CATV (Hyper Band) Ready
<Used Frequency Synthesizer Tuner>
Black Stretch Circuit
On Timer/Off Timer/Reminder Timer
CHAPTER 1. SPECIFICATIONS
[1]
Specifications ................................. . ....... 1-1
[1]
Important Service Notes ............ . ....... 2-1
[1]
Adjustment Precautions ............ . ....... 3-1
[2]
ADJUSTMENT ....................................... . ..... 3-15
[1]
Memory Map ...................................... . ....... 4-1
[1]
TROUBLE SHOOTING FLOWCHART .. . ....... 5-1
CHAPTER 6. SOLID STATE DEVICE BASE DIA-
GRAM
[1]
[1]
Chassis Layout ................................ . ....... 7-1
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

MODELS

FEATURES

Blue Back Function
Aperture Control Circuit
Auto Fine Tuning
NTSC Colour Comb Filter (AV THRU)
High Contrast Picture
Hotel Mode
White Temperature Select
AV Stereo
CONTENTS
[1]
Block Diagram: Main Unit ....................8-1
[2]
Block Diagram: Crt Unit ......................8-5
CHAPTER 9. DESCRIPTION OF SCHEMATIC DIA-
GRAM
[1]
DESCRIPTION OF SCHEMATIC DIA-
GRAM............................................................9-1
[1]
WAVEFORMS .............................................10-1
[1]
[2]
CHAPTER 12. PRINTED WIRING BOARD ASSEM-
BLIES
[1]
Pwb-B: Crt Unit ......................................12-1
[2]
Pwb-A: Main Unit ....................................12-2
WARNING
21L-FG1SA/SF/SM/RU
xxxxxxxxx
No. S551721LFG1SA

COLOUR TELEVISION

Chassis No.GA-6
21L-FG1SA
21L-FG1SF
21L-FG1SM
21L-FG1RU
Multi Languages OSD
(English/Chinese/French/Malay and Arabic) for
Model 21L-FG1SA/SM
(English/Chinese/French/Malay/Arabic and
Russian) for Model 21L-FG1SF
(English and Russian) for Model 21L-FG1RU
Surround Sound Effect
(With Bass/Treble/Balance)
Rear AV IN / OUT Terminals

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Summary of Contents for Sharp 21L-FG1RU

  • Page 1: Service Manual

    (English/Chinese/French/Malay/Arabic and CATV (Hyper Band) Ready High Contrast Picture Russian) for Model 21L-FG1SF <Used Frequency Synthesizer Tuner> Hotel Mode (English and Russian) for Model 21L-FG1RU Black Stretch Circuit White Temperature Select Surround Sound Effect On Timer/Off Timer/Reminder Timer AV Stereo...

  • Page 2: Specifications

    6.0MHz ............................. 32.9MHz 5.5MHz ............................. 33.4MHz Colour Sub-Carrier Frequency ......................34.47MHz Power Input ........................110 ~ 240V AC 50/60 Hz 220 ~ 240V AC 50/60 Hz (21L-FG1RU) Power Consumption ............................88W Audio Power Output Rating ....................... 3W(rms) x 2 Speaker Size ..........................

  • Page 3: Adjustment

    21L-FG1SA/SF/SM/RU CHAPTER 2. 21L-FG1SA/SF/SM/RU Service Manual 21L-FG1SA/SF/SM/RU Market IMPORTANT SERVICE NOTES [1] IMPORTANT SERVICE NOTES Maintenance and repair of this receiver should be done by qualified service personnel only. 1. SERVICE OF HIGH VOLTAGE SYSTEM AND PICTURE TUBE When servicing the high voltage system, remove static charge from it by connecting a 10K ohm resistor in series with an insulated wire (such as a test probe) between picture tube dag and 2nd anode lead.
  • Page 4 21L-FG1SA/SF/SM/RU CHAPTER 3. 21L-FG1SA/SF/SM/RU Service Manual 21L-FG1SA/SF/SM/RU Market ADJUSTMENT PRECAUTIONS [1] ADJUSTMENT PRECAUTIONS This model's setting are adjusted in two different ways: through the I2C bus control and in the conventional analog manner. The adjustments via the I2C bus control include preset-only items and variable data. CAUTION: Make sure TV set in "Normal condition"...
  • Page 5 21L-FG1SA/SF/SM/RU 1. ADJUSTMENT ITEM ***Below are the adjustment items that should be done, PLS FOLLOW THE PROCEDURE. Otherwise some adjustment items will not be accurate. NO *** ADJUSTMENT ITEM EFFECTIVE MODEL REVISION BUS SET UP OPTION SET UP H-VCO VIF-VCO S-TRAP fo RF-AGC PURITY ADJ...
  • Page 6 21L-FG1SA/SF/SM/RU 2. USER DATA IN SERVICE MODE 1) While SERVICE mode ON, EEPROM DATA will switch to the service data. Also, once SERVICE mode OFF, EEPROM will switch back to previous USER DATA. 2) In the service mode, the user data establish as below, USER DATA CONTRAST MAX (60)
  • Page 7 21L-FG1SA/SF/SM/RU RC CODE (HEX) R/C KEY NAME SERVICE-ITEM POS 6 B-C DOWN YUV (IN SERVICE MODE V25) POS 7 R-D UP YUV (IN SERVICE MODE V25) POS 8 B-D UP YUV (IN SERVICE MODE V25) POS 0 B-D DOWN YUV (IN SERVICE MODE V25) FLASHBACK R-D DOWN YUV (IN SERVICE MODE V25) AUTO ADJ FOR V01, V02, V03, V20, V21, V22, V23, V24...
  • Page 8 21L-FG1SA/SF/SM/RU MCL1 (HEX AE) CH-No Fv (MHz) Sound Sys NOTE: PLL DATA OF ABOVE FREQ SHOULD TAKE THE ACCOUNT OF PIF SETTING IN SERVICE OPTION O04 (VIF) BEFORE STORING INTO EEPROM. 3 – 5...
  • Page 9 21L-FG1SA/SF/SM/RU 3. SHIPPING SETTING & CHECKING (1) The following default data has been factory-set for the E2PROM follow by INITIAL DATA selected. ITEMS DATA SETTING INITIAL LANGUAGE SOUND SYSTEM LAST POWER CHINESE LAST TV/AV MODE TV MODE CHINESE LAST POSITION CH 1 ENGLISH FLASHBACK CHANNEL...
  • Page 10 21L-FG1SA/SF/SM/RU **AFTER INITIALIZED THE EEPROM (REFER TO FACTORY PRESETTING), READ DATA FROM EEPROM ADDRESS 00H ~ 03H, AND COM- PARE TO THE LIST BELOW, IF DIFFERENT, INITIALIZE THE EEPROM. ADDRESS DATA ADDRESS DATA 00H: 02H: 01H: 03H: *** There are four stages of service mode data. First stage data from V00 ~ V31 (Adjustment Mode). To go into second stage of service mode data, press MENU key.
  • Page 11 21L-FG1SA/SF/SM/RU SETTING MODE (SECOND STAGE) INITIAL FIX/ADJ/ EEPROM ITEMS FUNCTION DATA LENGTH REMARK DATA AUTO C.CLIP-LVL CLIP LEVEL CONTRAST CONTROL OF 0(20H) / 1(40H) RGB INPUT RGB-CLIP CLIPPING OF RGB CONTRAST CON- 0 (CLIP OFF) / 1(CLIP ON) TROL BLACK STRETCH 0(ON) / 1(OFF) ABCL ABCL PROCESSING (ACL PROCESSING)
  • Page 12 21L-FG1SA/SF/SM/RU SETTING MODE (SECOND STAGE) INITIAL FIX/ADJ/ EEPROM ITEMS FUNCTION DATA LENGTH REMARK DATA AUTO AFC2 (NO SYNC) HORIZONTAL AFC2 GAIN 0(NORMAL) / 1(DOWN) GAMMA GAMMA CORRECTION QTY BUS SETUP BS-D/C BLACK STRETCH CONTROL LEVEL 0~15 BS-GAIN BLACK STRETCH LEVEL 0(NORMAL) / 1(DOWN) OM-DET OVER MODULATION DETECT...
  • Page 13 21L-FG1SA/SF/SM/RU SETTING MODE (SECOND STAGE) INITIAL FIX/ADJ/ EEPROM ITEMS FUNCTION DATA LENGTH REMARK DATA AUTO FM-ID-SPEED FM SOUND IDENTIFICATION MODE 0(SLOW) / 1(MEDIUM) / (NICAM) 2(FAST) / 3(OFF) NICAM-AUTO-MUTE NICAM AUTO DETECTION 0(MUTE) / 1(DEMUTE) AUTO-SCM-KIL-AV- SECAM COLOUR KILLER SENSITIVITY (AV/YUV) AFC1-GAIN-TV MSB OF HORIZONTAL AFC GAIN1 (TV)
  • Page 14 CON YUV OFFSET SUB-CONTRAS OFFSET (YUV) F131 -63~0~+63 BRT YUV OFFSET SUB-BRIGHT OFFSET (YUV) F132 -63~0~+63 SHP ANT-ONII OFF- SHARP ANT-ON II OFFSET FOR VIDEO F133 -31~0~+31 TONE WAIT MD TIME SETTING CYCLE PROCESS TIME AT F134 LOW POWER Contrast OFFSET...
  • Page 15 LED-CONT 0 (ONE LED) / 1 (TWO LED) OPTION SET UP S-BOOSTER 0 (DISABLE) / 1 (ENABLE) OPTION SET UP SHARP-LOGO 0 (DISABLE) / 1 (ENABLE) OPTION SET UP YUV BKGD ADJ 0 (DISABLE) / 1 (ENABLE) OPTION SET UP...
  • Page 16 21L-FG1SA/SF/SM/RU 4. ADJ ITEM: BUS SET UP (1 ST & 2ND STAGE SERVICE DATA) SERVICE ITEMS 21L-FG1SA/SF/SM 21L-FG1RU REMARK SUB-SHARPNESS V-SIZE 60Hz VS-CORRECT ADJUST IF NECESSARY TO IMPROVE VC-CORRECT OFFSET V LINEARITY ADJUST IF NECESSARY TO IMPROVE S-OUT-LEVEL VIF-G YDL-AV-N3...
  • Page 17 21L-FG1SA/SF/SM/RU SERVICE ITEMS 21L-FG1SF 21L-FG1SA/SM 21L-FG1RU S-BOOSTER 0 (DISABLE) / 1 (ENABLE) SHARP-LOGO 0 (DISABLE) / 1 (ENABLE) YUV BKGD ADJ 0 (DISABLE) / 1 (ENABLE) WHITE BACK 0 (DISABLE) / 1 (ENABLE) BOOSTER 0 (DISABLE) / 1 (ENABLE) MESSAGE...
  • Page 18 21L-FG1SA/SF/SM/RU [2] ADJUSTMENT ADJUSTMENT PRECAUTION: Makesure TV Set is in “Normal Condition” before switch to Service Mode for Adjustment. 1. PIF ADJUSTMENT Adjustment point Adjustment procedure/conditions Waveform and others Tuner IFT 1. Get the tuner ready to receive the CH. E - 9 ( PRESET ) signal,but with no signal input.
  • Page 19 21L-FG1SA/SF/SM/RU 2. PURITY ADJUSTMENT Adjustment point Adjustment procedure/conditions Waveform and others PURITY ADJ. 1. Receive the GREEN-ONLY signal. Adjust the beam current to ~700 µA . 2. Degauss the CRT enough with the degausing coil. Note: Follow the Job Instruction Sheet to adjust the magnetic field.
  • Page 20 21L-FG1SA/SF/SM/RU 3. CONVERGENCE ADJUSTMENT Adjustment point Adjustment procedure/conditions Waveform and others CONVERGENCE 1. Receive the "Crosshatch Pattern" signal. ADJ. 2. Using the remote controller, call NORMAL mode. ( To be done after the purity Static convergence adjustment.) 1. Turn the 4-pole magnet to a proper opening an- gle in order to superpose the blue and red col- ours.
  • Page 21 21L-FG1SA/SF/SM/RU 4. H-VCO, VIF-VCO & S-TRAP fo ADJUSTMENT Adjustment point Adjustment procedure/conditions Waveform and others H-VCO ADJ (MANUAL ADJ) C BUS 1) In No signal (RASTER) condition. CONTROL) 2) Go to service mode, choose service data V03. (AUTO & 3) Connect oscilloscope to IC801 pin15, adj V03 until freq become 15.625 ±...
  • Page 22 Adj V04 until LUMINANCE Y be- come: 160 cd/m2. Adj the R-D & B-D until the axis of color temperature become 7500 X : 0.300 Y : 0.310 (21L-FG1RU) 12300 X : 0.272 Y : 0.275 (21L-FG1SA/SM) 5.5% IRE 9.5% IRE...
  • Page 23 21L-FG1SA/SF/SM/RU No. Adjustment point Adjustment procedure/conditions Waveform and others 1) In Window Pattern Signal condition. SUB- WINDOW PATTERN SIGNAL BRIGHTNESS Using Minolta Color Analyzer CA-100, let the (to be done gun point at Dark White position (as attach after screen, drawing), adjust V06 Bus data until white balance LUMINANCE Y = 3 ±...
  • Page 24 21L-FG1SA/SF/SM/RU 6. HORIZONTAL, VERTICAL, DEFLECTION LOOP and FOCUS ADJUSTMENT No. Adjustment point Adjustment procedure/conditions Waveform and others 1) Receive Monoscope Pattern Signal (PAL 50Hz). H-SHIFT 2) Choose the service data V13. C BUS 3) Adjust the V13 bus data to have a balance position to CONTROL) spec of A=B (as attach drawing).
  • Page 25 21L-FG1SA/SF/SM/RU 8. NTSC CHROMA ADJUSTMENT No. Adjustment point Adjustment procedure/conditions Waveform and others SUB-TINT 1) Receive the "NTSC 3.58 Color Bar" signal thru C BUS AV in. CONTROL) 2) Connect the oscilloscope to B-Amp Transistor Base (JUMPER 410). Range : 100mV/Div.(AC)(Use Probe 10:1) Sweep time : 10 µsec/Div.
  • Page 26 21L-FG1SA/SF/SM/RU 10. PROTECTOR OPERATION CHECKING Adjustment point Adjustment procedure/conditions Waveform and others BEAM 1) Receive "Monoscope Pattern" signal. * Select one of Q853/4/5 to do 2) Set CONTRAST MAX. each short. PROTECTOR 3) Set BRIGHT MAX. 4) During the Collector & Emitter of Q853/4/5 short, make sure the protector ON and switch to standby mode.
  • Page 27 21L-FG1SA/SF/SM/RU 12. FUNCTION OPERATION CHECKING (VIDEO AND AUDIO) Adjustment point Adjustment procedure/conditions Waveform and others CONTRAST key 1) Receive "Monoscope Pattern" signal. 2) Set MENU, then go into PICTURE mode to se- lect CONTRAST. 3) Press Volume Up/Down key to check whether the CONTRAST effect is OK or not.
  • Page 28 21L-FG1SA/SF/SM/RU Adjustment point Adjustment procedure/conditions Waveform and others 1) Receive the "PAL COLOUR BAR" signal, press COLOUR MENU, choose CH-SETTING to select COLOR SYSTEM modes except PAL, check the COLOUR is not working properly. Then, select the "PAL" mode. Check again its colour so that it is working properly. 2) Receive "SECAM COLOUR BAR"...
  • Page 29 LANGUAGE MODEL QUANTITY ENGLISH RUSSIAN CHINESE FRENCH ARABIC MALAY QUANTITY 21L-FG1SF CHECK 21L-FG1SA/SM 21L-FG1RU 13. SHOCK TEST CHECKING Adjustment point Adjustment procedure/conditions Waveform and others SHOCK TEST 1) Hit at the top of TV set for two time. 2) Check TV set not damage and TV operation op- erate correctly.
  • Page 30 21L-FG1SA/SF/SM/RU 15. ROOM CORRECTION DATA MCU: R2J10162GC-A09FP Soft Ver. V1.25 Date 17/04/2006 ROMCORRECT1 ... 1a. During Channel changing, set Halfh-Killer (21h:D6) to “L” during av mute. 1b. Fix Killer-Level (15h:D0) to “1”. ROMCORRECT2 ... EEPROM Data Slave Sub. Data Comment ROMCORRECT1 Permission ROMCORRECT1 Address(H) ROMCORRECT1 Address(L)
  • Page 31 21L-FG1SA/SF/SM/RU CHAPTER 4. MEMORY MAP [1] MEMORY MAP IXB725WJN1 (GA6 PAL) MODEL : SEM PCD SOFTWARE GROUP TV DESIGN ENGINEERING TV PRODUCTION ENGINEERING ISSUED DATE :5 Apr 2006 ISSUED DATE : ISSUED DATE : MANAGER MANAGER MANAGER EEPROM CHECK DATA LIST 1 CHIEF CHIEF CHIEF...
  • Page 32 21L-FG1SA/SF/SM/RU MEMORY MAP (Continued) IXB725WJN1 (GA6 PAL) MODEL : SEM PCD SOFTWARE GROUP TV DESIGN ENGINEERING TV PRODUCTION ENGINEERING ISSUED DATE :5 Apr 2006 ISSUED DATE : ISSUED DATE : MANAGER MANAGER MANAGER EEPROM CHECK DATA LIST 2 CHIEF CHIEF CHIEF ENGINEER ENGINEER...
  • Page 33 21L-FG1SA/SF/SM/RU MEMORY MAP (Continued) IXB725WJN1 (GA6 PAL) MODEL : SEM PCD SOFTWARE GROUP TV DESIGN ENGINEERING TV PRODUCTION ENGINEERING ISSUED DATE :5 Apr 2006 ISSUED DATE : ISSUED DATE : MANAGER MANAGER MANAGER EEPROM CHECK DATA LIST 3 CHIEF CHIEF CHIEF ENGINEER ENGINEER...
  • Page 34 21L-FG1SA/SF/SM/RU MEMORY MAP (Continued) IXB725WJN1 (GA6 PAL) MODEL : SEM PCD SOFTWARE GROUP TV DESIGN ENGINEERING TV PRODUCTION ENGINEERING ISSUED DATE :5 Apr 2006 ISSUED DATE : ISSUED DATE : MANAGER MANAGER MANAGER EEPROM CHECK DATA LIST 4 CHIEF CHIEF CHIEF ENGINEER ENGINEER...
  • Page 35 21L-FG1SA/SF/SM/RU MEMORY MAP (Continued) IXB725WJN1 (GA6 PAL) MODEL : SEM PCD SOFTWARE GROUP TV DESIGN ENGINEERING TV PRODUCTION ENGINEERING ISSUED DATE :5 Apr 2006 ISSUED DATE : ISSUED DATE : MANAGER MANAGER MANAGER EEPROM CHECK DATA LIST 5 CHIEF CHIEF CHIEF ENGINEER ENGINEER...
  • Page 36 21L-FG1SA/SF/SM/RU MEMORY MAP (Continued) IXB725WJN1 (GA6 PAL) MODEL : SEM PCD SOFTWARE GROUP TV DESIGN ENGINEERING TV PRODUCTION ENGINEERING ISSUED DATE :5 Apr 2006 ISSUED DATE : ISSUED DATE : MANAGER MANAGER MANAGER EEPROM CHECK DATA LIST 6 CHIEF CHIEF CHIEF ENGINEER ENGINEER...
  • Page 37 21L-FG1SA/SF/SM/RU MEMORY MAP (Continued) IXB725WJN1 (GA6 PAL) MODEL : SEM PCD SOFTWARE GROUP TV DESIGN ENGINEERING TV PRODUCTION ENGINEERING ISSUED DATE :5 Apr 2006 ISSUED DATE : ISSUED DATE : MANAGER MANAGER MANAGER EEPROM CHECK DATA LIST 7 CHIEF CHIEF CHIEF ENGINEER ENGINEER...
  • Page 38 21L-FG1SA/SF/SM/RU MEMORY MAP (Continued) IXB725WJN1 (GA6 PAL) MODEL : SEM PCD SOFTWARE GROUP TV DESIGN ENGINEERING TV PRODUCTION ENGINEERING ISSUED DATE :5 Apr 2006 ISSUED DATE : ISSUED DATE : MANAGER MANAGER MANAGER EEPROM CHECK DATA LIST 8 CHIEF CHIEF CHIEF ENGINEER ENGINEER...
  • Page 39 21L-FG1SA/SF/SM/RU MEMORY MAP (Continued) IXB725WJN1 (GA6 PAL) MODEL : SEM PCD SOFTWARE GROUP TV DESIGN ENGINEERING TV PRODUCTION ENGINEERING ISSUED DATE :5 Apr 2006 ISSUED DATE : ISSUED DATE : MANAGER MANAGER MANAGER EEPROM CHECK DATA LIST 9 CHIEF CHIEF CHIEF ENGINEER ENGINEER...
  • Page 40 21L-FG1SA/SF/SM/RU MEMORY MAP (Continued) IXB725WJN1 (GA6 PAL) MODEL : SEM PCD SOFTWARE GROUP TV DESIGN ENGINEERING TV PRODUCTION ENGINEERING ISSUED DATE :5 Apr 2006 ISSUED DATE : ISSUED DATE : MANAGER MANAGER MANAGER EEPROM CHECK DATA LIST 10 CHIEF CHIEF CHIEF ENGINEER ENGINEER...
  • Page 41 (O01) LED-CONT R/C MENU NICAM 00-FF BIL (O17) TEXT (O16) A2 (O15) S-CTR (O13) YUV (O12) (O21) (O20) (O14) ANT- WHITE YUV BKGD Sharp-logo S-Booster MESSAGE BOOSTER 00-FF 1-Chip (O30) TUNER BACK (O25) (O24) (O23) (O22) (O27) (O26) (O29) 01-0F...
  • Page 42 21L-FG1SA/SF/SM/RU MEMORY MAP (Continued) IXB725WJN1 (GA6 PAL) MODEL : SEM PCD SOFTWARE GROUP TV DESIGN ENGINEERING TV PRODUCTION ENGINEERING ISSUED DATE :5 Apr 2006 ISSUED DATE : ISSUED DATE : MANAGER MANAGER MANAGER EEPROM CHECK DATA LIST 12 CHIEF CHIEF CHIEF ENGINEER ENGINEER...
  • Page 43 21L-FG1SA/SF/SM/RU MEMORY MAP (Continued) IXB725WJN1 (GA6 PAL) MODEL : SEM PCD SOFTWARE GROUP TV DESIGN ENGINEERING TV PRODUCTION ENGINEERING ISSUED DATE :5 Apr 2006 ISSUED DATE : ISSUED DATE : MANAGER MANAGER MANAGER EEPROM CHECK DATA LIST 13 CHIEF CHIEF CHIEF ENGINEER ENGINEER...
  • Page 44 21L-FG1SA/SF/SM/RU MEMORY MAP (Continued) IXB725WJN1 (GA6 PAL) MODEL : SEM PCD SOFTWARE GROUP TV DESIGN ENGINEERING TV PRODUCTION ENGINEERING ISSUED DATE :5 Apr 2006 ISSUED DATE : ISSUED DATE : MANAGER MANAGER MANAGER EEPROM CHECK DATA LIST 14 CHIEF CHIEF CHIEF ENGINEER ENGINEER...
  • Page 45 21L-FG1SA/SF/SM/RU MEMORY MAP (Continued) IXB725WJN1 (GA6 PAL) MODEL : SEM PCD SOFTWARE GROUP TV DESIGN ENGINEERING TV PRODUCTION ENGINEERING ISSUED DATE :5 Apr 2006 ISSUED DATE : ISSUED DATE : MANAGER MANAGER MANAGER EEPROM CHECK DATA LIST 15 CHIEF CHIEF CHIEF ENGINEER ENGINEER...
  • Page 46 21L-FG1SA/SF/SM/RU MEMORY MAP (Continued) IXB725WJN1 (GA6 PAL) MODEL : SEM PCD SOFTWARE GROUP TV DESIGN ENGINEERING TV PRODUCTION ENGINEERING ISSUED DATE :5 Apr 2006 ISSUED DATE : ISSUED DATE : MANAGER MANAGER MANAGER EEPROM CHECK DATA LIST 16 CHIEF CHIEF CHIEF ENGINEER ENGINEER...
  • Page 47 21L-FG1SA/SF/SM/RU CHAPTER 5. 21L-FG1SA/SF/SM/RU Service Manual 21L-FG1SA/SF/SM/RU Market TROUBLE SHOOTING FLOWCHART [1] TROUBLE SHOOTING FLOWCHART NO RASTER Check F701. Blown out. Replace the fuse. Check T701 pin (17) voltage The fuse is blown out again. (Approx. 310V at 220V AC) Check TH700.
  • Page 48 21L-FG1SA/SF/SM/RU TROUBLE SHOOTING FLOWCHART (Continued) CIRCUITS TO BE CHECKED: NO SOUND Sound Detector Circuit. Sound Switch and Att. Control. Audio Output Circuit. Does signal appear at pins Check TV sound from pin (47) (13) and (20) of IC3502 ? of IC801. Does signal appear at pins (6) and (8) of IC301 ? Check IC301 and...
  • Page 49 21L-FG1SA/SF/SM/RU TROUBLE SHOOTING FLOWCHART (Continued) NO SPECIFIC COLOUR Is some colour produced in B/W broadcast reception ? Is the white balance properly Check IC801. adjusted ? Re-adjust the white balance. The picture colour is cyan. The picture colour is magenta. The picture colour is yellow.

  • Page 50: Solid State Device Base Diagram

    21L-FG1SA/SF/SM/RU CHAPTER 6. 21L-FG1SA/SF/SM/RU Service Manual 21L-FG1SA/SF/SM/RU Market SOLID STATE DEVICE BASE DIAGRAM [1] SOLID STATE DEVICE BASE DIAGRAM TOP VIEW COLLECTOR COLLECTOR BASE EMITTER BASE EMITTER IXB725WJ BR24L08 3928 A1530 CATHODE CATHODE IXB725WJ R2S15903SP ANODE ANODE R2S15903SP EX1393C EX0263T SIDE VIEW TT2140 LOTNo.

  • Page 51: Chassis Layout

    21L-FG1SA/SF/SM/RU CHAPTER 7. CHASSIS LAYOUT [1] CHASSIS LAYOUT 7 – 1...

  • Page 52: Block Diagram

    21L-FG1SA/SF/SM/RU CHAPTER 8. BLOCK DIAGRAM [1] BLOCK DIAGRAM: MAIN UNIT 8 – 1...
  • Page 53 21L-FG1SA/SF/SM/RU 8 – 2...

  • Page 54: Block Diagram: Crt Unit

    21L-FG1SA/SF/SM/RU [2] BLOCK DIAGRAM: CRT UNIT 8 – 3...

  • Page 55: Description Of Schematic Dia Gram

    21L-FG1SA/SF/SM/RU CHAPTER 9. 21L-FG1SA/SF/SM/RU Service Manual 21L-FG1SA/SF/SM/RU Market DESCRIPTION OF SCHEMATIC DIAGRAM [1] DESCRIPTION OF SCHEMATIC DIAGRAM SAFETY NOTES: NOTES: DISCONNECT THE AC PLUG FROM THE AC OUT- The unit of resistance "ohm" is omitted. LET BEFORE REPLACING PARTS. (K = 1000 ohms, M = Mega ohm). SEMICONDUCTOR HEAT SINKS SHOULD BE RE- All resistors are 1/16 watt, unless otherwise noted.
  • Page 56 21L-FG1SA/SF/SM/RU CHAPTER 10. WAVEFORMS [1] WAVEFORMS 0.96 Vp-p (H) 4.75 Vp-p (H) 4.37 Vp-p (H) 5.16 Vp-p (H) 5.29 Vp-p (H) 4.83 Vp-p (H) 5.83 Vp-p (V) 1.45 Vp-p (V) 4.58 Vp-p (H) 59.16 Vp-p (H) 1.02 KVp-p (H) 52.08 Vp-p (V) 4.08 Vp-p (V) 130 Vp-p (H) 500 Vp-p...

  • Page 57: Chapter 11. Schematic Diagram 1] Schematic Diagram: Main Unit

    21L-FG1SA/SF/SM/RU CHAPTER 11. 21L-FG1SA/SF/SM/RU Service Manual 21L-FG1SA/SF/SM/RU Market SCHEMATIC DIAGRAM [1] SCHEMATIC DIAGRAM: MAIN UNIT 11 – 1...
  • Page 58 21L-FG1SA/SF/SM/RU 11 – 2...
  • Page 59 21L-FG1SA/SF/SM/RU 11 – 3...
  • Page 60 21L-FG1SA/SF/SM/RU 11 – 4...

  • Page 61: Schematic Diagram: Crt Unit

    21L-FG1SA/SF/SM/RU [2] SCHEMATIC DIAGRAM: CRT UNIT 11 – 5...

  • Page 62: Blies 1] Pwb-B: Crt Unit

    21L-FG1SA/SF/SM/RU CHAPTER 12. 21L-FG1SA/SF/SM/RU Service Manual 21L-FG1SA/SF/SM/RU Market PRINTED WIRING BOARD ASSEMBLIES [1] PWB-B: CRT UNIT 1. CRT UNIT (Component Side) Component Side 12 – 1...

  • Page 63: Pwb-A: Main Unit

    21L-FG1SA/SF/SM/RU [2] PWB-A: MAIN UNIT 1. MAIN UNIT (Component Side) 12 – 2...
  • Page 64 21L-FG1SA/SF/SM/RU 12 – 3...
  • Page 65 21L-FG1SA/SF/SM/RU 2. MAIN UNIT (Chip Parts Side) 12 – 4...
  • Page 66 21L-FG1SA/SF/SM/RU 12 – 5...

  • Page 67: Parts Guide

    21L-FG1SA/SF/SM/RU PartsGuide PARTS GUIDE No. S551721LFG1SA 21L-FG1SA 21L-FG1SF 21L-FG1SM 21L-FG1RU MODELS CONTENTS PICTURE TUBE MISCELLANEOUS PARTS PRINTED WIRING BOARD SUPPLIED ACCESSORIES ASSEMBLIES CABINET PARTS MAIN UNIT PACKING PARTS CRT UNIT 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.
  • Page 68 [2] PRINTED WIRING BOARD ASSEMBLIES [MAIN Unit ( 21L-FG1SA )] DUNTKD746WEA0 [MAIN Unit ( 21L-FG1SF )] DUNTKD746WEA1 [MAIN Unit ( 21L-FG1SM )] DUNTKD746WEA5 [MAIN Unit ( 21L-FG1RU )] DUNTKD746WEA3 [CRT Unit (21L-FG1SA )] DUNTKD747WEA0 [CRT Unit (21L-FG1SF )] DUNTKD747WEA1 [CRT Unit (21L-FG1SM )]...
  • Page 69 C501 [0.1 50V Mylar] VCQYTA1HM104J+ C505 [100 50V Electrolytic] VCEA0A1HW107M+ C508 VCFYAA2AA224J+ [0.22 100V Mylar] C509 VCKYPA2HB472K+ [4700p 500V Ceramic ( 21L-FG1RU Only )] C511 [470 35V Electrolytic] VCEA0A1VW477M+ C512 [1000p 500V Ceramic] VCKYPA2HB102K+ C513 [Capacitor] RC-EZA332WJZZ+ C515 [3.3 50V Electrolytic]...
  • Page 70 21L-FG1SA/SF/SM/RU PRICE PART PARTS CODE DESCRIPTION RANK MARK RANK [3] MAIN UNIT C818 [47 16V Electrolytic] VCEA0A1CW476M+ C819 [0.01 50V Ceramic] VCKYCY1HB103KY C820 [0.1 50V Mylar] VCFYFA1HA104J+ C821 [47 16V Electrolytic] VCEA0A1CW476M+ C822 [0.1 50V Ceramic] VCKYCY1HB104KY C823 VCKYCY1HB104KY [0.1 50V Ceramic] C824 [1 16V Ceramic] VCKYCY1CF105ZY...
  • Page 71 [82 2W Metal Film] VRN-RL3DBR82J+ R706 [22 2W Metal Film] VRN-RL3DBR22J+ R710 [1 1/2W Carbon] VRD-RM2HD1R0JY R718 [2.7M 1/2W Solid ( 21L-FG1RU Only )] VRC-UA2HG275KY R720 [4.7K 1/4W Carbon] VRD-RA2EE472JY R722 [15K 1/8W Carbon] VRD-RA2BE153JY R726 [0.47 1/2W Metal Oxide]...
  • Page 72 21L-FG1SA/SF/SM/RU PRICE PART PARTS CODE DESCRIPTION RANK MARK RANK [3] MAIN UNIT R802 [47K 1/16W Metal Oxide] VRS-CY1JF473JY R803 [100 1/8W Carbon] VRD-RA2BE101JY R804 [100 1/16W Metal Oxide] VRS-CY1JF101JY R805 [100 1/8W Carbon] VRD-RA2BE101JY R806 [8.2K 1/16W Metal Oxide] VRS-CY1JF822JY R807 VRS-CY1JF124JY [120K 1/16W Metal Oxide]...
  • Page 73 [Operation Manual C(S)/M ( 21L-FG1SA , 21L-FG1SM)] TINS-C258WJZZ [Operation Manual FR ( 21L-FG1SA )] TINS-C259WJZZ [Operation Manual E/AR ( 21L-FG1SF )] TINS-C260WJZZ [Operation Manual F/RU ( 21L-FG1SF )] TINS-C261WJZZ [Operation Manual ( 21L-FG1RU )] TINS-C411WJZZ [Warranty Card ( 21L-FG1ru )] TGAN-A101WJZZ [Battery] UBATUA004WJZZ...
  • Page 74 [Sharp Badge] HBDGB3155CESA [RC/LED Cover] GCOVAB580WJSA [Power Button] JBTN-A551WJSA [Power Button Spring] MSPRCA067WJFW [Control Button] JBTN-A552WJSA [Rear Cabinet Ass'y ( 21L-FG1SA , 21L-FG1SF , 21L-FG1RU)] CCABBA755WEV0 [Rear Cabinet Ass'y ( 21L-FG1SM )] CCABBA839WEV0 [Rear Cabinet] Not Available [AC Cord Hook] LHLDWA101WJZZ...
  • Page 75 [Case Label ( 21L-FG1SA )] TLABZB123WJZZ [Case Label ( 21L-FG1SF )] TLABZB124WJZZ [Case Label ( 21L-FG1RU )] TLABZB206WJZZ [Case Label ( 21L-FG1SM )] TLABZB193WJZZ [Packing Foam ( 21L-FG1SA , 21L-FG1SF , 21L-FG1RU )] SPAKXB002WJZZ [Wrapping Bag ( 21L-FG1SA , 21L-FG1SF , 21L-FG1RU )] SSAKH0016PEZZ...
  • Page 76 21L-FG1SA/SF/SM/RU INDEX PRICE PART PRICE PART PARTS CODE PARTS CODE RANK MARK RANK RANK MARK RANK RC-KZ0102GEZZ 3-C713 [ C ] RC-KZ1018CEZZ+ 3-C784 CCABAB298WEV0 RCRSAA019WJZZ 3-X801 CCABAB299WEV0 RFILC0442CEZZ 3-SF201 CCABAB300WEV0 RH-DX0066GEZZY 3-D706 CCABAB402WEV0 " 3-D707 CCABBA755WEV0 " 3-D709 CCABBA839WEV0 " 3-D721 [ D ] RH-DX0131CEZZY...
  • Page 77 21L-FG1SA/SF/SM/RU PRICE PART PRICE PART PARTS CODE PARTS CODE RANK MARK RANK RANK MARK RANK VCEA0A1CW108M+ 3-C3524 " 3-C1842 VCEA0A1CW226M+ 3-C322 " 3-C1852 " 3-C1840 VCKYCY1HB104KY 3-C822 VCEA0A1CW336M+ 3-C893 " 3-C823 " 3-C1868 " 3-C842 " 3-C3532 " 3-R837 " 4-C893 "...
  • Page 78 21L-FG1SA/SF/SM/RU PRICE PART PRICE PART PARTS CODE PARTS CODE RANK MARK RANK RANK MARK RANK " 3-R1019 " 3-R804 " 3-R3503 " 3-R808 VRD-RA2BE102JY 3-R301 " 3-R814 " 3-R356 " 3-R815 " 3-R615 " 3-R1014 " 3-R616 " 3-R1024 " 3-R661 "...
  • Page 79 21L-FG1SA/SF/SM/RU PRICE PART PARTS CODE RANK MARK RANK " 3-R1894 " 3-R1895 " 3-R1896 VRS-CY1JF561JY 3-R822 VRS-CY1JF562JY 3-R1038 VRS-CY1JF681JY 3-R816 VRS-CY1JF750JY 3-R461 VRS-CY1JF822JY 3-R806 " 3-R812 " 3-R1021 " 3-R3523 " 3-R3524 VRS-RG3AB331J+ 3-R506 VRS-RG3DB121J+ 3-R755 VRS-RG3LB391J+ 3-R631 VRS-RG3LB393J+ 3-R216 VRS-VV3DB124J 3-R702 VRS-VV3DB153J...
  • Page 80 EndPage © COPYRIGHT 2006 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 ALL RIGHTS RESERVED.

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