Sharp 21JF2-GA Service Manual
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Sharp 21JF2-GA Service Manual

Sharp 21JF2-GA Service Manual

Colour television
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Download this manual See also: Operating 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.
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
Blue Back Function
[1]
SPECIFICATIONS ................................. . ....... 1-1
[1]
IMPORTANT SERVICE NOTES ............ . ....... 2-1
[1]
ADJUSTMENT PRECAUTIONS ............ . ....... 3-1
[2]
ADJUSTMENT ....................................... . ..... 3-14
CHAPTER 4. MEMORY MAP
[1]
MEMORY MAP ...................................... . ....... 4-1
[1]
TROUBLE SHOOTING FLOWCHART .. . ....... 5-1
GRAM
[1]
[1]
CHASSIS LAYOUT ................................ . ....... 7-1
[1]
BLOCK DIAGRAM: CRT UNIT .............. . ....... 8-1
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

FEATURES
Front AV IN & Rear AV IN / OUT Terminals
Front Headphone Jack
Aperture Control Circuit
Auto Fine Tuning
NTSC Colour Comb Filter (AV THRU)
High Contrast Picture
Hotel Mode
White Temperature Select
CONTENTS
WARNING

SHARP CORPORATION

COLOUR TELEVISION
Chassis No. GA-4M
MODELS
Multi Languages OSD
(ENG / CHI / FRE / MAL / ARA / RUS)
for Model 21JF2-SF / SS Only.
(ENG / CHI / FRE / MAL / ARA)
for Model 21JF2-GA / SA Only.
(ENG / RUS)
for Model 21JF2-RU Only.
MONO
[2]
[3]
BLOCK DIAGRAM: MAIN UNIT ....................8-2
GRAM
[1]
GRAM............................................................9-1
[1]
WAVEFORMS .............................................10-1
[1]
[2]
[3]
UNIT ............................................................ 11-7
BLIES
[1]
PWB-B: CRT UNIT ......................................12-1
[2]
PWB-C: HEADPHONE UNIT ......................12-1
[3]
PWB-A: MAIN UNIT ....................................12-2
21JF2-RU/GA/SA/SF/SS
No. S95O521JF2-RU
21JF2-RU
21JF2-GA
21JF2-SA
21JF2-SF
21JF2-SS

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Summary of Contents for Sharp 21JF2-GA

  • Page 1: Table Of Contents

    Auto Fine Tuning (ENG / CHI / FRE / MAL / ARA) <Used Frequency Synthesizer Tuner> NTSC Colour Comb Filter (AV THRU) for Model 21JF2-GA / SA Only. Black Stretch Circuit High Contrast Picture (ENG / RUS) On Timer / Off Timer / Reminder Timer Hotel Mode for Model 21JF2-RU Only.

  • Page 2: Chapter 1. Specifications

    21JF2-RU/GA/SA/SF/SS CHAPTER 1. 21JF2-RU/GA/SA/SF/SS SPECIFICATIONS Service Manual [1] SPECIFICATIONS Convergence ........................ Self Convergence System Focus ..........................UNI-BI Focusing Sweep Deflection ............................. Magnetic Intermediate Frequencies Picture IF Carrier ..........................38.9MHz Sound IF Carrier Frequency 6.5MHz ............................. 32.4MHz 6.0MHz ............................. 32.9MHz 5.5MHz ............................. 33.4MHz Colour Sub-Carrier Frequency ......................

  • Page 3: Chapter 2. Important Service Notes

    21JF2-RU/GA/SA/SF/SS CHAPTER 2. 21JF2-RU/GA/SA/SF/SS IMPORTANT SERVICE NOTES Service Manual [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: Chapter 3. Adjustment Precautions

    21JF2-RU/GA/SA/SF/SS CHAPTER 3. 21JF2-RU/GA/SA/SF/SS ADJUSTMENT PRECAUTIONS Service Manual [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 21JF2-RU/GA/SA/SF/SS 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 21JF2-RU/GA/SA/SF/SS 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 21JF2-RU/GA/SA/SF/SS RC CODE (HEX) R/C KEY NAME SERVICE-ITEM FLASHBACK R-D DOWN YUV (IN SERVICE MODE V25) AUTO ADJ FOR V01, V02, V03, V20, V21, V22, V23, V24 T-SET SERVICE MODE 1) Please set the MCL to MCL1 as below: 2) After set the MCL, please set the INITIAL SETTING for each models. INITIAL 3 : For Singapore and Africa ( All Channel Sound System are set to B/G ) INITIAL 4 : For Middle-East ( All Channel Sound System are set to B/G ) INITIAL 5 : For Russia ( All Channel Sound System are set to D/K )
  • Page 8 21JF2-RU/GA/SA/SF/SS 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 21JF2-RU/GA/SA/SF/SS 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 21JF2-RU/GA/SA/SF/SS **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 21JF2-RU/GA/SA/SF/SS 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 21JF2-RU/GA/SA/SF/SS 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 BS-D/C BLACK STRETCH CONTROL LEVEL 0~15 BS-GAIN BLACK STRETCH LEVEL 0(NORMAL) / 1(DOWN) OM-DET OVER MODULATION DETECT 0(OFF) / 1(ON)
  • Page 13 21JF2-RU/GA/SA/SF/SS 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 21JF2-RU/GA/SA/SF/SS 4. ADJ ITEM: BUS SET UP (1 ST & 2ND STAGE SERVICE DATA) SERVICE ITEMS 21JF2-RU 21JF2-GA/SA 21JF2-SF 21JF2-SS SUB-SHARPNESS S-OUT-LVL COL-AV COL-ADJ SHP-AV TINT-AV TINT-ADJ B-B (OFFSET) 5. ADJ ITEM: OPTION SET UP (4TH STAGE SERVICE DATA) SERVICE ITEMS...

  • Page 17: Adjustment

    21JF2-RU/GA/SA/SF/SS [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 18 21JF2-RU/GA/SA/SF/SS 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 19 21JF2-RU/GA/SA/SF/SS 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 20 21JF2-RU/GA/SA/SF/SS 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 pin11, adj V03 until freq become 15.625 ±...
  • Page 21 21JF2-RU/GA/SA/SF/SS 5. SCREEN, WHITE BALANCE, SUB-BRIGHTNESS & SUB-CONTRAST ADJUSTMENT No. Adjustment point Adjustment procedure/conditions Waveform and others SCREEN 1) In window pattern signal condition. R-CUTOFF (R-C) UP RC key "1" (HEX 80) ADJUSTMENT R-CUTOFF (R-C) DOWN RC key "4" (HEX 20) C BUS 2) Go to service mode, then select V00.
  • Page 22 21JF2-RU/GA/SA/SF/SS 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 LUMI- white balance NANCE Y = 3 ±...
  • Page 23 21JF2-RU/GA/SA/SF/SS 6. HORIZONTAL, VERTICAL, DEFLECTION LOOP and FOCUS ADJUSTMENT Adjustment point Adjustment procedure/conditions Waveform and others 1) Receive Monoscope Pattern Signal (PAL 50 Hz) H-SHIFT 2) Choose the service data V13. C BUS 3) Adjust the V13 bus data to have a balance position CONTROL) to spec of A=B (as attach drawing) (to be done...
  • Page 24 21JF2-RU/GA/SA/SF/SS 8. NTSC CHROMA ADJUSTMET Adjustment point Adjustment procedure/conditions Waveform and others SUB-TINT 1) Receive the "NTSC3.58 Colour Bar" signal thru AV in. C BUS CONTROL) 2) Connect the oscilloscope to B-Amp Transistor Base (TP853 ). Range : 100mV/Div. (AC)(Use Probe 10:1) Sweep time : 10 µsec/Div.
  • Page 25 21JF2-RU/GA/SA/SF/SS 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 26 21JF2-RU/GA/SA/SF/SS 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 27 Select B/G and check the sound output to make sure it is working properly. 1) Check OSD LANGUAGE quantity and type for respect model. LANGUAGE MODEL QUANTITY ENGLISH RUSSIAN CHINESE FRENCH ARABIC MALAY QUANTITY 21JF2-RU CHECK 21JF2-GA 21JF2-SA 21JF2-SF 21JF2-SS 3 – 24...
  • Page 28 21JF2-RU/GA/SA/SF/SS 13. HEADPHONE JACK CHECKING Adjustment point Adjustment procedure/conditions Waveform and others HEADPHONE 1) Receive PAL COLOUR BAR with SOUND 400Hz, OUTPUT 100% MODULATION (±50kHz Dev). CHECKING 2) Maximum volume, and check the headphone output with 400Hz sound and no sound output speaker.
  • Page 29 SLV2 MODEL Micon Version CHK1 CHK2 FIGURE SLV4 21JF2-RU RH-IXB226WJZZ(Software Ver. 1.0) SLV7 21JF2-GA RH-IXB226WJZZ(Software Ver. 1.0) MICON : ZZ CHK1 : ACT 21JF2-SA RH-IXB226WJZZ(Software Ver. 1.0) SOFT : 1.0 CHK2 : ACT 21JF2-SF RH-IXB226WJZZ(Software Ver. 1.0)

  • Page 30: Memory Map

    21JF2-RU/GA/SA/SF/SS CHAPTER 4. 21JF2-RU/GA/SA/SF/SS MEMORY MAP Service Manual [1] MEMORY MAP SLAVE ADDRESS : A0(00-FF) A2(100-1FF) A4(200-2FF) A6(300-3FF) A8(400-4FF) DATA ADDRESS MICON EEPROM EEPROM CHASSIS CTV FINAL LAST INITIAL (HEX) DEFAULT RANGE WRITE(CPU) CHECK DATA CHECK TYPE CHECK DATA CHECK TYPE REMARK SETTING DATA EEPROM INITIALIZATION JUDGEMENT BYTE-0...
  • Page 31 21JF2-RU/GA/SA/SF/SS MEMORY MAP (Continued) SLAVE ADDRESS : A0(00-FF) A2(100-1FF) A4(200-2FF) A6(300-3FF) A8(400-4FF) DATA ADDRESS MICON EEPROM EEPROM CHASSIS CTV FINAL LAST INITIAL (HEX) DEFAULT RANGE WRITE(CPU) CHECK DATA CHECK TYPE CHECK DATA CHECK TYPE REMARK SETTING DATA TUNING FREQUENCY (LOW BYTE) 00-FF POS 28 TUNING FREQUENCY (HIGH BYTE)
  • Page 32 21JF2-RU/GA/SA/SF/SS MEMORY MAP (Continued) SLAVE ADDRESS : A0(00-FF) A2(100-1FF) A4(200-2FF) A6(300-3FF) A8(400-4FF) DATA ADDRESS MICON EEPROM EEPROM CHASSIS CTV FINAL LAST INITIAL (HEX) DEFAULT RANGE WRITE(CPU) CHECK DATA CHECK TYPE CHECK DATA CHECK TYPE REMARK SETTING DATA TUNING FREQUENCY (LOW BYTE) 00-FF POS 60 TUNING FREQUENCY (HIGH BYTE)
  • Page 33 21JF2-RU/GA/SA/SF/SS MEMORY MAP (Continued) SLAVE ADDRESS : A0(00-FF) A2(100-1FF) A4(200-2FF) A6(300-3FF) A8(400-4FF) DATA ADDRESS MICON EEPROM EEPROM CHASSIS CTV FINAL LAST INITIAL (HEX) DEFAULT RANGE WRITE(CPU) CHECK DATA CHECK TYPE CHECK DATA CHECK TYPE REMARK SETTING DATA TUNING FREQUENCY (LOW BYTE) 00-FF POS 92 TUNING FREQUENCY (HIGH BYTE)
  • Page 34 21JF2-RU/GA/SA/SF/SS MEMORY MAP (Continued) SLAVE ADDRESS : A0(00-FF) A2(100-1FF) A4(200-2FF) A6(300-3FF) A8(400-4FF) DATA ADDRESS MICON EEPROM EEPROM CHASSIS CTV FINAL LAST INITIAL (HEX) DEFAULT RANGE WRITE(CPU) CHECK DATA CHECK TYPE CHECK DATA CHECK TYPE SETTING DATA REMARK 00-34 S-SYSTEM (POS0) C-SYSTEM (POS0) ANT-BOOSTER (POS0) 00-34...
  • Page 35 21JF2-RU/GA/SA/SF/SS MEMORY MAP (Continued) SLAVE ADDRESS : A0(00-FF) A2(100-1FF) A4(200-2FF) A6(300-3FF) A8(400-4FF) DATA ADDRESS MICON EEPROM EEPROM CHASSIS CTV FINAL LAST INITIAL (HEX) DEFAULT RANGE WRITE(CPU) CHECK DATA CHECK TYPE CHECK DATA CHECK TYPE SETTING DATA REMARK 00-9C S-SYSTEM (POS64) C-SYSTEM (POS64) ANT-BOOSTER (POS64) 00-34...
  • Page 36 21JF2-RU/GA/SA/SF/SS MEMORY MAP (Continued) SLAVE ADDRESS : A0(00-FF) A2(100-1FF) A4(200-2FF) A6(300-3FF) A8(400-4FF) DATA ADDRESS MICON EEPROM EEPROM CHASSIS CTV FINAL LAST INITIAL (HEX) DEFAULT RANGE WRITE(CPU) CHECK DATA CHECK TYPE CHECK DATA CHECK TYPE REMARK SETTING DATA 00-FF ROM CORRECTION-1 CODE 00-FF ROM CORRECTION-1 CODE ROM CORRECTION-1 CODE...
  • Page 37 21JF2-RU/GA/SA/SF/SS MEMORY MAP (Continued) SLAVE ADDRESS : A0(00-FF) A2(100-1FF) A4(200-2FF) A6(300-3FF) A8(400-4FF) DATA ADDRESS MICON EEPROM EEPROM CHASSIS CTV FINAL LAST INITIAL (HEX) DEFAULT RANGE WRITE(CPU) CHECK DATA CHECK TYPE CHECK DATA CHECK TYPE REMARK SETTING DATA 00-FF Message Favorite Three - Character 01 00-FF Message Favorite Three - Character 02 00-FF...
  • Page 38 21JF2-RU/GA/SA/SF/SS MEMORY MAP (Continued) SLAVE ADDRESS : A0(00-FF) A2(100-1FF) A4(200-2FF) A6(300-3FF) A8(400-4FF) DATA ADDRESS MICON EEPROM EEPROM CHASSIS CTV FINAL LAST INITIAL (HEX) DEFAULT RANGE WRITE(CPU) CHECK DATA CHECK TYPE CHECK DATA CHECK TYPE REMARK SETTING DATA 00-7F R-DRIVE (V00) 00-7F B-DRIVE (V00) R-CUTOFF (V00)
  • Page 39 21JF2-RU/GA/SA/SF/SS MEMORY MAP (Continued) SLAVE ADDRESS : A0(00-FF) A2(100-1FF) A4(200-2FF) A6(300-3FF) A8(400-4FF) DATA ADDRESS MICON EEPROM EEPROM CHASSIS CTV FINAL LAST INITIAL (HEX) DEFAULT RANGE REMARK WRITE(CPU) CHECK DATA CHECK TYPE CHECK DATA CHECK TYPE SETTING DATA 00-3E SHARPNESS-YUV (F31) SHARPNESS-PAL (F32) 00-3E 00-3E...
  • Page 40 TEXT NICAM S-CTR 00-FF CONT MENU BIL (O17) A2 (O15) (O16) (O14) (O13) (O12) (O21) (O20) ANT- WHITE 1-Chip Sharp- S-Booster BOOSTE BACK BKGD 00-FF TUNER MESSAGE (O30) logo (O23) (O22) (O27) R (O26) (O25) (O24) (O29) 01-0F M (O09) D/K (O09)
  • Page 41 21JF2-RU/GA/SA/SF/SS MEMORY MAP (Continued) SLAVE ADDRESS : A0(00-FF) A2(100-1FF) A4(200-2FF) A6(300-3FF) A8(400-4FF) DATA ADDRESS MICON EEPROM EEPROM CHASSIS CTV FINAL LAST INITIAL (HEX) DEFAULT RANGE WRITE(CPU) CHECK DATA CHECK TYPE CHECK DATA CHECK TYPE REMARK SETTING DATA 0-FF Inbox Message - Character 01 0-FF Inbox Message - Character 02 0-FF...
  • Page 42 21JF2-RU/GA/SA/SF/SS MEMORY MAP (Continued) SLAVE ADDRESS : A0(00-FF) A2(100-1FF) A4(200-2FF) A6(300-3FF) A8(400-4FF) DATA ADDRESS MICON EEPROM EEPROM CHASSIS CTV FINAL LAST INITIAL (HEX) DEFAULT RANGE WRITE(CPU) CHECK DATA CHECK TYPE CHECK DATA CHECK TYPE SETTING DATA REMARK 00-FF A2 FM A2 ST A2 BIL1 NCM FM...
  • Page 43 21JF2-RU/GA/SA/SF/SS MEMORY MAP (Continued) SLAVE ADDRESS : A0(00-FF) A2(100-1FF) A4(200-2FF) A6(300-3FF) A8(400-4FF) DATA ADDRESS MICON EEPROM EEPROM CHASSIS CTV FINAL LAST INITIAL (HEX) DEFAULT RANGE WRITE(CPU) CHECK DATA CHECK TYPE CHECK DATA CHECK TYPE REMARK SETTING DATA 00-FF A2 FM A2 ST A2 BIL1 NCM FM...
  • Page 44 21JF2-RU/GA/SA/SF/SS MEMORY MAP (Continued) SLAVE ADDRESS : A0(00-FF) A2(100-1FF) A4(200-2FF) A6(300-3FF) A8(400-4FF) DATA ADDRESS MICON EEPROM EEPROM CHASSIS CTV FINAL LAST INITIAL (HEX) DEFAULT RANGE WRITE(CPU) CHECK DATA CHECK TYPE CHECK DATA CHECK TYPE REMARK SETTING DATA 00-FF Message Favorite One- Character 01 00-FF Message Favorite One- Character 02 0-FF...
  • Page 45 21JF2-RU/GA/SA/SF/SS MEMORY MAP (Continued) SLAVE ADDRESS : A0(00-FF) A2(100-1FF) A4(200-2FF) A6(300-3FF) A8(400-4FF) DATA ADDRESS MICON EEPROM EEPROM CHASSIS CTV FINAL LAST INITIAL (HEX) DEFAULT RANGE WRITE(CPU) CHECK DATA CHECK TYPE CHECK DATA CHECK TYPE REMARK SETTING DATA 0-FF Message Favorite Two- Character 01 0-FF Message Favorite Two- Character 02 0-FF...

  • Page 46: Chapter 5. Trouble Shooting Flowchart

    21JF2-RU/GA/SA/SF/SS CHAPTER 5. 21JF2-RU/GA/SA/SF/SS TROUBLE SHOOTING FLOWCHART Service Manual [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 NR701. Check IC701, D701 and C705.
  • Page 47 21JF2-RU/GA/SA/SF/SS 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 (51) (6) of IC303 ? of IC801 to pin (6) of IC303. Check Speaker.
  • Page 48 21JF2-RU/GA/SA/SF/SS 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 49: Chapter 6. Solid State Device Base Dia

    21JF2-RU/GA/SA/SF/SS CHAPTER 6. 21JF2-RU/GA/SA/SF/SS SOLID STATE DEVICE BASE DIAGRAM Service Manual [1] SOLID STATE DEVICE BASE DIAGRAM TOP VIEW COLLECTOR COLLECTOR BASE EMITTER BASE EMITTER BR24L08 D601A B709A M61260AF CATHODE CATHODE M61260AF ANODE ANODE EX1393C EX0263T M1501XN IMX1C/C S H A R P I X B 2 2 6 W J Z Z IMZ1A IXB226W...

  • Page 50: Chapter 7. Chassis Layout Chassis Layout

    21JF2-RU/GA/SA/SF/SS CHAPTER 7. 21JF2-RU/GA/SA/SF/SS CHASSIS LAYOUT Service Manual [1] CHASSIS LAYOUT 7 – 1...

  • Page 51: Chapter 8. Block Diagram

    21JF2-RU/GA/SA/SF/SS CHAPTER 8. 21JF2-RU/GA/SA/SF/SS BLOCK DIAGRAM Service Manual [1] BLOCK DIAGRAM: CRT UNIT [2] BLOCK DIAGRAM: HEADPHONE UNIT 8 – 1...

  • Page 52: Block Diagram: Main Unit

    21JF2-RU/GA/SA/SF/SS [3] BLOCK DIAGRAM: MAIN UNIT 8 – 2...
  • Page 53 21JF2-RU/GA/SA/SF/SS 8 – 3...

  • Page 54: Chapter 9. Description Of Schematic Dia

    21JF2-RU/GA/SA/SF/SS CHAPTER 9. 21JF2-RU/GA/SA/SF/SS DESCRIPTION OF SCHEMATIC DIAGRAM Service Manual [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 55: Chapter 10. Waveforms

    21JF2-RU/GA/SA/SF/SS CHAPTER 10. 21JF2-RU/GA/SA/SF/SS WAVEFORMS Service Manual [1] WAVEFORMS 1) 0.92 Vp-p 2) 4.08 Vp-p 3) 4.21 Vp-p 4) 4.38 Vp-p 5) 6.25 Vp-p Horiz. Rate Horiz. Rate Horiz. Rate Horiz. Rate Horiz. Rate 6) 6.42 Vp-p 7) 2.04 Vp-p 8) 1.81 Vp-p 9) 5.33 Vp-p 10) 48.33 Vp-p...

  • Page 56: Chapter 11. Schematic Diagram

    21JF2-RU/GA/SA/SF/SS CHAPTER 11. 21JF2-RU/GA/SA/SF/SS SCHEMATIC DIAGRAM Service Manual [1] SCHEMATIC DIAGRAM: MAIN UNIT 1. (21JF2-RU) 11 – 1...
  • Page 57 21JF2-RU/GA/SA/SF/SS 11 – 2...
  • Page 58 21JF2-RU/GA/SA/SF/SS 2. (21JF2-GA) (21JF2-SA) (21JF2-SF) 11 – 3...
  • Page 59 21JF2-RU/GA/SA/SF/SS 11 – 4...
  • Page 60 21JF2-RU/GA/SA/SF/SS 3. (21JF2-SS) 11 – 5...
  • Page 61 21JF2-RU/GA/SA/SF/SS 11 – 6...

  • Page 62: Schematic Diagram: Crt Unit

    21JF2-RU/GA/SA/SF/SS [2] SCHEMATIC DIAGRAM: CRT UNIT [3] SCHEMATIC DIAGRAM: HEADPHONE UNIT 11 – 7...

  • Page 63: Chapter 12. Printed Wiring Board Assem

    21JF2-RU/GA/SA/SF/SS CHAPTER 12. 21JF2-RU/GA/SA/SF/SS PRINTED WIRING BOARD ASSEMBLIES Service Manual [1] PWB-B: CRT UNIT 1. CRT UNIT (Component Side) Component Side [2] PWB-C: HEADPHONE UNIT 1. HEADPHONE UNIT (Component Side) (Chip Parts Side) Component Side Chip Parts Side 12 – 1...

  • Page 64: Pwb-A: Main Unit

    21JF2-RU/GA/SA/SF/SS [3] PWB-A: MAIN UNIT 1. MAIN UNIT (Component Side) 12 – 2...
  • Page 65 21JF2-RU/GA/SA/SF/SS 12 – 3...
  • Page 66 21JF2-RU/GA/SA/SF/SS 2. MAIN UNIT (Chip Parts Side) 12 – 4...
  • Page 67 21JF2-RU/GA/SA/SF/SS 12 – 5...

  • Page 68: Parts Guide

    21JF2-RU/GA/SA/SF/SS PARTS GUIDE No. S95O521JF2-RU 21JF2-RU 21JF2-GA 21JF2-SA 21JF2-SF 21JF2-SS MODELS CONTENTS PICTURE TUBE MISCELLANEOUS PARTS PRINTED WIRING BOARD CABINET PARTS ASSEMBLIES SUPPLIED ACCESSORIES MAIN UNIT PACKING PARTS CRT UNIT HEADPHONE UNIT Parts marked with " " are important for maintaining the safety of the set. Be sure to replace these...
  • Page 69 DUNTKA599WEH6 CRT Unit [21JF2-GA/SA] DUNTKA599WEK1 CRT Unit [21JF2-SF] DUNTKA599WEK2 CRT Unit [21JF2-SS] DUNTKD308WEA3 HEADPHONE Unit [3] MAIN UNIT PWB-A: DUNTKD307WEA3 (21JF2-RU) PWB-A: DUNTKD307WEA4 (21JF2-GA)(21JF2-SA) PWB-A: DUNTKD307WED3 (21JF2-SF) PWB-A: DUNTKD307WED4 (21JF2-SS) TU201 RTUNQA022WJZZ TUNER IC303 VHiAN17823A-1 AN17823A IC305 VSiMX1C/C//-1Y IMX1T110 IC402...
  • Page 70 Packaged Circuit X801 RCRSAA019WJZZ Crystal L203 VP-DF270K0000Y Peaking 27µH L602 RCiLP0223CEZZ+ Coil L701 RCiLF0086PEN1 Coil [21JF2-RU/SS] L701 RCiLFA187WJZZ Coil [21JF2-GA/SA/SF] L751 RCiLP0179CEZZ+ Coil L801 VP-CF220K0000Y Peaking 22µH L802 VP-DF100K0000Y Peaking 10µH L803 VP-DF100K0000Y Peaking 10µH L806 VP-DF100K0000Y Peaking 10µH L807 VP-XF2R2K0000Y Peaking 2.2µH...
  • Page 71 21JF2-RU/GA/SA/SF/SS PRICE PART PARTS CODE DESCRIPTION RANK MARK RANK [3] MAIN UNIT C752 VCKYPH3DB561K 560p 2kV Ceramic C753 RC-EZA523WJZZ 100 160V Electrolytic C754 RC-EZA522WJZZ 33 160V Electrolytic C756 VCEA0A1EW228M+ 2200 25V Electrolytic C757 VCKYCY1HB471KY 470p 50V Ceramic C784 RC-KZ1018CEZZ+ 1000p 2kV Ceramic C801 VCFYFA1HA105J+ 1 50V Mylar...
  • Page 72 21JF2-RU/GA/SA/SF/SS PRICE PART PARTS CODE DESCRIPTION RANK MARK RANK [3] MAIN UNIT R314 VRD-RA2BE562JY 5.6k 1/8W Carbon R315 VRS-CY1JF182JY 1.8k 1/16W Metal Oxide R318 VRD-RA2BE680JY 68 1/8W Carbon R353 VRS-CY1JF102JY 1k 1/16W Metal Oxide R366 VRS-CY1JF332JY 3.3k 1/16W Metal Oxide R372 VRS-CY1JF104JY 100k 1/16W Metal Oxide...
  • Page 73 21JF2-RU/GA/SA/SF/SS PRICE PART PARTS CODE DESCRIPTION RANK MARK RANK [3] MAIN UNIT R824 VRD-RA2BE101JY 100 1/8W Carbon R825 VRD-RA2BE101JY 100 1/8W Carbon R829 VRD-RA2BE472JY 4.7k 1/8W Carbon R830 VRS-CY1JF393JY 39k 1/16W Metal Oxide R831 VRD-RA2BE331JY 330 1/8W Carbon R832 VRS-CY1JF822JY 8.2k 1/16W Metal Oxide R833 VRS-CY1JF220JY...
  • Page 74 Heat Sink for Q602 RDA701 PRDARA119WJFW Heat Sink for IC701 NR701 RH-HXA013WJZZ+ Thermistor TP801 QLUGP0111GEFW LHLDP1066PE00 Holder [4] CRT UNIT PWB-B: DUNTKA599WEH8 (21JF2-RU) PWB-B: DUNTKA599WEH6 (21JF2-GA)(21JF2-SA) PWB-B: DUNTKA599WEK1 (21JF2-SF) PWB-B: DUNTKA599WEK2 (21JF2-SS) Q853 RH-TX0110BMZZ+ TX0110 Q854 RH-TX0110BMZZ+ TX0110 Q855 RH-TX0110BMZZ+ TX0110 Q894...
  • Page 75 PART PARTS CODE DESCRIPTION RANK MARK RANK [7] CABINET PARTS CCABAB102WEV0 Front Cabinet Ass'y [21JF2-RU] CCABAB119WEV0 Front Cabinet Ass'y [21JF2-GA] CCABAB114WEV0 Front Cabinet Ass'y [21JF2-SA] CCABAB222WEV0 Front Cabinet Ass'y [21JF2-SF] CCABAB224WEV0 Front Cabinet Ass'y [21JF2-SS] Not Available Front Cabinet JBTN-A485WJSA...
  • Page 76 PRICE PART PARTS CODE DESCRIPTION RANK MARK RANK [8] SUPPLIED ACCESSORIES RRMCGA307WJSB Infrared Remote Control Unit [21JF2-RU/SA/SF/SS] RRMCGA307WJSA Infrared Remote Control Unit [21JF2-GA] TiNS-B981WJZZ Operation Manual [21JF2-RU] TiNS-B996WJZZ Operation Manual [21JF2-GA/SA] TiNS-C042WJZZ Operation Manual [21JF2-GA/SA] TiNS-C140WJZZ Operation Manual [21JF2-SF/SS] TiNS-C043WJZZ...
  • Page 77 PART PARTS CODE DESCRIPTION RANK MARK RANK [9] PACKING PARTS (NOT REPLACEMENT ITEM) SPAKCC260WJZZ Packing Case [21JF2-RU] SPAKCC112WJZZ Packing Case [21JF2-GA/SA/SF/SS] SPAKXA822WJZZ Packing Foam (Top/Bottom) SPAKPA771WJZZ Wrapping Paper [21JF2-RU] SSAKH0016PEZZ Wrapping Paper [21JF2-GA/SA/SF/SS] TLABMB751WJZZ Model Label [21JF2-RU] TLABMB848WJZZ Model Label...
  • Page 78 COPYRIGHT 2005 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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