Sharp 21V-FR95S Service Manual
  1. Manuals
  2. Brands
  3. Sharp Manuals
  4. TV
  5. 21V-FR95S
  6. Service manual

Sharp 21V-FR95S Service Manual

Color television
Hide thumbs
Table of Contents

Advertisement

Quick Links

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 .........................................................................
Installation And Service Instructions ........................................................................
SERVICE MODE ...........................................................................................................................
Adjustment Method ..............................................................................................................
Chassis Layout ....................................................................................................................... 26
BLOCK DIAGRAM ........................................................................................................................ 27
SCHEMATIC DIAGRAMS ...........................................................................................................
Printed Wiring Board Assemblies ................................................................................... 36
Replacement Parts List ...................................................................................................... 40
Packing Of The Set ................................................................................................................ 47
POWER INPUT .......................... 110-230 V AC,60 Hz
POWER RATING .............................................. 85 W
PICTURE SIZE ...................... 1,239 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
Km. 23 West Service Road, South Super Highway Alabang, City of Muntinlupa

SERVICE MANUAL

CONTENTS
..............................................................................................
ELECTRICAL SPECIFICATIONS
(192sq inch)
2
(Nominal)
SHARP (PHILS.) CORPORATION
COLOR TELEVISION
Chassis No. GA-4M
21V-FR95S (SL)
MODEL
AUDIO POWER OUTPUT RATING ............... 3 W + 3 W
SPEAKER
SIZE ....................................................... 9 cm x 5 cm
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
Specifications are subject to change without
prior notice.
21V-FR95S (SL)
TVSM056-21V-FR95S(SL)
Page
2
4
5
6
12
32

Advertisement

Table of Contents
loading

Related Manuals for Sharp 21V-FR95S

Summary of Contents for Sharp 21V-FR95S

  • Page 1: Service Manual

    21V-FR95S (SL) SERVICE MANUAL TVSM056-21V-FR95S(SL) COLOR TELEVISION Chassis No. GA-4M 21V-FR95S (SL) 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

    21V-FR95S IMPORTANT SERVICE SAFETY PRECAUTION Service work should be performed only by qualified service technicians who are thoroughly familiar will 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 21V-FR95S IMPORTANT SERVICE SAFETY PRECAUTION (Continued) BEFORE RETURNING THE RECEIVER Connect the resistor connection to all exposed metal 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 21V-FR95S LOCATION OF USER'S CONTROL Front Panel Menu/Preset VOLUME Up / Down REMOTE CHANNEL Up / Down CONTROL Sensor (Power On) FRONT AV Input POWER indicator Terminal MAIN Power MAIN POWER IN-2 REMOTE SENSOR MENU/P RESET VIDEO L - AUDIO - R (MONO) Note: Appearance design may vary depending on models ;...

  • Page 5: Installation And Service Instructions

    21V-FR95S INSTALLATION AND SERVICE INSTRUCTIONS Note: (1) When performing any adjustments to resistor controls and transformers, use non-mettalic screw drivers 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),...

  • Page 6: Service Mode

    21V-FR95S SERVICE MODE Service Mode Overview 1. Service mode is entered by SERVICE key input or CH-UP +VOL-DOWN input during reset. 2. Service mode is cleared by entering SERVICE key command during service mode. 3. If key input port (SERVICE) input is LOW, then it is in service mode.
  • Page 7 21V-FR95S Adjustment Mode Items Item Name Register Range Default SUB-PICTURE 1 Chip CONTRAST 0~127 SUB-TINT 1 Chip TINT 0~127 SUB-COLOR 1 Chip COLOR 0~127 SUB-BRIGHT 1 Chip BRIGHT 0~255 SUB-SHARP 1 Chip VIDEO-TONE 0~63 V-SHIFT 1 Chip V-SHIFT H-SHIFT 1 Chip...

  • Page 8: Self Adjustment

    21V-FR95S SELF ADJUSTMENT H-VCO 1. When there is H-VCO self-adjustment key input for adjustment item H-VCO, self-adjustment is performed. 2. H-FREE(1chip) is set to 1. 3. H-OUT is set by intelligent monitor output. 4. IM input is set as TIM input.
  • Page 9 21V-FR95S Setting Mode Items Item Name Register Range Default VIDEO TONE -GAIN (TV) 1 Chips V-TONE VIDEO TONE -GAIN (AV) 1 Chips V-TONE VIDEO TONE -GAIN (S-AV) 1 Chips V-TONE VIDEO TONE -GAIN(YUV) 1 Chips V-TONE ABCL 1 Chips ABCL...
  • Page 10 21V-FR95S Setting Mode Items (Continued) Item Name Register Range Default FAO-VOL 0~63 CHARGE PUMP CC LEVEL MICON CC LEVEL OSD POS MICON OSD POS OFFSET-ADJ-COL 1 Chips COLOR -32~+32 OFFSET-ADJ-TINT 1 Chips TINT -32~+32 OFFSET-ADJ-TINT-YUV 1 Chips BASEBAND-TINT -32~+32 TIMER4-LOW SPEED...
  • Page 11 21V-FR95S Option Mode Items OPTION FUNCTION Default Data DEMO Without DEMO With DEMO DOWNLOAD Without V-CHIP OP With V-CHIP OP V-CHIP Without V-CHIP With V-CHIP SPEAKER Without SPEAKER With SPEAKER Without FAO With FAO P.PREF Without P.REF With P.REF UNIV+...

  • Page 12: Adjustment Method

    21V-FR95S ADJUSTMENT METHOD Caution: to get into the service mode, one of the ways is press direct key for service items. There is three stage of Service Mode data First stage data from V01 ~ M06 to go into second stage of service mode data, press MENU key...
  • Page 13 21V-FR95S Second Stage Data Service Mode Function Range Default Data VIDEO TONE -GAIN (TV) V-TONE VIDEO TONE -GAIN (AV) V-TONE VIDEO TONE -GAIN (S-AV) V-TONE VIDEO TONE -GAIN(YUV) V-TONE ABCL ABCL BS-OFF ABCL-G ABCL-G SHP-AV VIDEO-TONE(OFFSET) -16~+16 SHP-SAV VIDEO-TONE(OFFSET) -16~+16...
  • Page 14 21V-FR95S Second Stage (Continued) Data Service Mode Function Range Default Data CHARGE PUMP CC LEVEL CC LEVEL OSD POS OSD POS OFFSET-ADJ-COL COLOR -32~+32 OFFSET-ADJ-TINT TINT -32~+32 OFFSET-ADJ-TINT-YUV BASEBAND-TINT -32~+32 TIMER4-LOW SPEED TIMER4 VALUE 0~225 TIMER4-HIGH SPEED TIMER4 VALUE 0~225...
  • Page 15 POSITION CONTROL CONTROL PRE-ADJUST PRE-ADJUST REQUIREMENT REQUIREMENT CONTENT CONTENT INPUT INPUT 21V-FR85S/21V-FR95S/21V-FR350S 21V-FR85S/21V-FR95S/21V-FR350S CONDITION CONDITION OUTPUT OSD CHECKING OUTPUT OSD CHECKING DATA SETUP FOR FIRST AND SECOND STAGE SERVICE DATA BUS OPTION FOR THIRD STAGE SERVICE DATA V05 F15 F21 F23 F24...
  • Page 16 ADJUSTMENT ADJUSTMENT H-POSITION V-SIZE ITEM ITEM ADJUSTMENT ADJUSTMENT STEP RANGE 0-31 STEP RANGE 0~63 POSITION POSITION CONTROL CONTROL C BUS CONTROL C CONTROL PRE-ADJUST PRE-ADJUST OPTION SET UP, BUS SET UP, CRT-PURITY OPTION SET UP, BUS SET UP, CRT PURITY, V-PHASE, +B ADJUST REQUIREMENT REQUIREMENT CONTENT...
  • Page 17 ADJUSTMENT ADJUSTMENT V-PHASE CLOSED CAPTION SET UP ITEM ITEM ADJUSTMENT ADJUSTMENT STEP RANGE STEP RANGE 0~255 POSITION POSITION CONTROL CONTROL C CONTROL C CONTROL PRE-ADJUST PRE-ADJUST OPTION SET UP, BUS SET UP, CRT-PURITY OPTION SET UP, BUS SET UP REQUIREMENT REQUIREMENT CONTENT CONTENT...
  • Page 18 ADJUSTMENT ADJUSTMENT PIF-VCO H-VCO ITEM ITEM ADJUSTMENT ADJUSTMENT STEP RANGE 0~63 STEP RANGE POSITION POSITION CONTROL CONTROL C CONTROL C CONTROL PRE-ADJUST PRE-ADJUST OPTION SET UP, BUS SET UP OPTION SET UP, BUS SET UP REQUIREMENT REQUIREMENT CONTENT CONTENT NO SIGNAL (RASTER) CONDITION NO SIGNAL (RASTER) CONDITION INPUT INPUT...
  • Page 19 ADJUSTMENT ADJUSTMENT RF-AGC SCREEN ITEM ITEM ADJUSTMENT ADJUSTMENT STEP RANGE 0-127 V11,V12,V13 STEP RANGE 0-255 POSITION POSITION CONTROL CONTROL C CONTROL C CONTROL PRE-ADJUST PRE-ADJUST OPTION SET UP, BUS SET UP OPTION SET UP, BUS SET UP REQUIREMENT REQUIREMENT CONTENT CONTENT US10CH HALF COLOR BAR WINDOW PATTERN OR US6 CH LION HEAD...
  • Page 20 ADJUSTMENT ADJUSTMENT WHITE BALANCE SUB-BRIGHT ITEM ITEM ADJUSTMENT ADJUSTMENT V14,V15,V11,V12,V13 STEP RANGE 0-127, 0~255 STEP RANGE 0-255 POSITION POSITION CONTROL C BUS CONTROL C CONTROL CONTROL PRE-ADJUST PRE-ADJUST OPTION SET UP, BUS SET UP, SCREEN OPTION SET UP, BUS SET UP, SCREEN, WHITE BALANCE REQUIREMENT REQUIREMENT CONTENT...
  • Page 21 ADJUSTMENT ADJUSTMENT SUB-PICTURE SUB-TINT ITEM ITEM ADJUSTMENT ADJUSTMENT STEP RANGE 0-127 STEP RANGE 0-127 POSITION POSITION CONTROL CONTROL C BUS CONTROL C CONTROL PRE-ADJUST PRE-ADJUST OPTION SET UP, BUS SET UP, SCREEN, WHITE BALANCE, SUB-BRIGHTNESS OPTION SET UP, BUS SET UP, VCO ADJ, RF-AGC REQUIREMENT REQUIREMENT CONTENT...
  • Page 22 ADJUSTMENT ADJUSTMENT SUB-COLOR X-RAY PROTECTION OPERATING CONFIRMATION ITEM ITEM ADJUSTMENT ADJUSTMENT STEP RANGE 0-127 STEP RANGE POSITION POSITION CONTROL CONTROL C BUS CONTROL PRE-ADJUST PRE-ADJUST OPTION SET UP, BUS SET UP, VCO ADJ, RF-AGC, SUB-PICT, SUB-TNT AFTER ALL ADJUSTMENT FINISHED. REQUIREMENT REQUIREMENT CONTENT...
  • Page 23 ADJUSTMENT ADJUSTMENT HIGH VOLTAGE MS LEVEL ADJUSTMENT ITEM ITEM ADJUSTMENT ADJUSTMENT STEP RANGE STEP RANGE 0~15 POSITION POSITION CONTROL CONTROL C BUS CONTROL PRE-ADJUST PRE-ADJUST AFTER ALL ADJUSTMENT FINISHED. OPTION SET UP, BUS SET UP, VCO ADJ, RF-AGC REQUIREMENT REQUIREMENT CONTENT US 6 CH LION HEAD (MONOSCOPE PATTERN) CONTENT...
  • Page 24 ADJUSTMENT SEPARATION ADJUSTMENT ITEM ADJUSTMENT M04, M05 STEP RANGE 0~63 POSITION CONTROL C BUS CONTROL PRE-ADJUST OPTION SET UP, BUS SET UP, VCO ADJ, RF-AGC, MS-LEVEL, MTS-VCO, FILTER REQUIREMENT STEREO SIGNAL SIGNAL 1,: MODULATION 30%, L-CH ONLY, NR-ON, 300Hz CONTENT SIGNAL 2,: MODULATION 30%, L-CH ONLY, NR-ON, 3kHz INPUT RF INPUT...
  • Page 25 21V-FR95S WAVEFORMS...

  • Page 26: Chassis Layout

    21V-FR95S CHASSIS LAYOUT DUNTKD373WE PR701...
  • Page 27 21V-FR95S CRT BLOCK DIA GRAM...

  • Page 28: Main Block Diagram

    21V-FR95S MAIN BLOCK DIAGRAM Q803 BUFFER AV-OUT...
  • Page 29 21V-FR95S...
  • Page 30 21V-FR95S MTS BLOCK DIAGRAM...

  • Page 31: Description Of Schematic Diagram

    21V-FR95S 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 W =1000 W , M=M W ) wave shapes at the red, green and blue cathodes of 2.
  • Page 32 21V-FR95S...
  • Page 33 21V-FR95S SCHEMATIC DIAGRAM: CRT Unit...
  • Page 34 21V-FR95S SCHEMATIC DIAGRAM: MTS Unit...

  • Page 35: Printed Wiring Board Assemblies

    21V-FR95S PRINTED WIRING BOARD ASSEMBLIES R1007 R1055 R1076 R846 R837 C451 PWB-A: MAIN Unit (Wiring Side)
  • Page 36 21V-FR95S R432 R1 0 2 7 RJ 1 6 R1 0 2 4 RJ39 C1 0 1 6 R1 0 0 3 R1056 F DC1 Q1 0 0 2 I C3 0 0 2 R821 Q8 0 5 C3 0 8...
  • Page 37 21V-FR95S PWB-B: CRT Unit (Wiring Side)
  • Page 38 21V-FR95S PWB-C: MTS Unit (Wiring Side) R3 0 0 4 R3 0 0 3 C3 0 0 2 Q3 0 0 4 R3 0 0 5 R3 0 3 5 Q3 0 0 1 R3 0 2 9 R3 0 3 4...

  • Page 39: Replacement Parts List

    21V-FR95S REPLACEMENT PARTS LIST Ref. No. Part No. Description Replacement parts which have these special safety characteristics PWB-A: DUNTKD373WEA0 MAIN UNIT identified in this manual; electrical components having such features are identified by ! And shaded areas in the Replacement Parts...
  • Page 40 21V-FR95S Ref. No. Part No. Description Ref. No. Part No. Description PWB-A: DUNTKD373WEA0 MAIN UNIT C208 VCKYCY1HF103Z 0.01, 50V Ceramic (Continued) C209 VCKYCY1HF103Z 0.01, 50V Ceramic D732 RH-EX0626GEZZ Zener, EX0626GE C210 VCKYCY1HF103Z 0.01, 50V Ceramic D736 RH-EX0683GEZZ Zener, EX0683GE C213...
  • Page 41 21V-FR95S Ref. No. Part No. Description Ref. No. Part No. Description PWB-A: DUNTKD373WEA0 MAIN UNIT C1081 VCQYTA1HM104J 0.1, 50V Mylar (Continued) C1849 VCFYFA1HA223J 0.022, 50V M-Poly. C784 RC-KZ1018CEZZ 1000p, 2kV Ceramic C1855 VCKYCY1HB561K 560p, 50V Ceramic C801 VCFYFA1HA105J 1, 50V M-Poly.
  • Page 42 21V-FR95S Ref. No. Part No. Description Ref. No. Part No. Description PWB-A: DUNTKD373WEA0 MAIN UNIT R824 VRD-RA2BE101J 100, 1/8W Carbon (Continued) R826 VRD-RA2BE101J 100, 1/8W Carbon R524 VRD-RA2BE103J 10k, 1/8W Carbon R827 VRD-RA2BE472J 4.7k, 1/8W Carbon R525 VRD-RA2BE102J 1k, 1/8W Carbon...
  • Page 43 21V-FR95S Ref. No. Part No. Description Ref. No. Part No. Description PWB-A: DUNTKD373WEA0 MAIN UNIT LX-BZ3049GEF7 Screw (Continued) LHLDW1047PEZZ Wire Holder R1063 VRS-CY1JF103J 10k, 1/16W M-Ox. R1064 VRS-CY1JF103J 10k, 1/16W M-Ox. R1065 VRS-CY1JF103J 10k, 1/16W M-Ox. R1066 VRS-CY1JF561J 560, 1/16W M-Ox.
  • Page 44 21V-FR95S Ref. No. Part No. Description Ref. No. Part No. Description PWB-B: DUNTKA599WEI1 CRT UNIT PWB-C: DUNTKC574WEA3 MTS UNIT TRANSISTORS INTEGRATED CIRCUITS Q853 RH-TX0110BMZZ TX0110BM IC3001 VHICXA2194Q-1S CXA2194Q Q854 RH-TX0110BMZZ TX0110BM Q855 RH-TX0110BMZZ TX0110BM TRANSISTORS Q894 VS2SA1015Y/1E 2SA1015Y Q3001 VS2SD601AR/-1...
  • Page 45 21V-FR95S Ref. No. Part No. Description Ref. No. Part No. Description PWB-C: DUNTKC574WEA3 MTS UNIT MISCELLANEOUS PARTS (Continued) QACCZA050WJPZ AC Cord VSP9050PB53WA Speaker RESISTORS LANGSA010WJZZ Speaker Bracket [M-Ox. …Metal Oxide] LBNDC0001PFZZ Wire Holder RJ101 VRS-CY1JF000J 0, 1/16W M-Ox. LHLDK0012PEZZ AC Cord Holder...

  • Page 46: Packing Of The Set

    21V-FR95S PACKING OF THE SET H Infrared R/C Unit H Polystyrene Bag H Rod Antenna Operation Manual Guarantee Card Service List Batteries H Polyethylene Sack H Buffer Material H Packing Case FRONT Use tapes to fix the packing case. REAR...
  • Page 47 I. NAKAMURA M. GABIT A. UGALDE A. CALING Noted Approved Checked Prepared Issue No. Date Received by...

Table of Contents