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Sharp 36US650 Service Manual
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Sharp 36US650 Service Manual

Sharp 36US650 Service Manual

Color television
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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.
» ELECTRICAL SPECIFICATIONS ......................................................................................................... 1
» IMPORTANT SERVICE SAFETY PRECAUTION ................................................................................. 2
» LOCATION OF USER'S CONTROL ..................................................................................................... 4
» INSTALLATION AND SERVICE INSTRUCTIONS ................................................................................ 5
» SERVICE ADJUSTMENT ................................................................................................................... . 9
» CHASSIS LAYOUT .............................................................................................................................12
» SCHEMATIC DIAGRAMS ................................................................................................................... 1 4
» PRINTED WIRING BOARD ASSEMBLIES ........................................................................................ 24
» REPLACEMENT PARTS LIST ............................................................................................................ 28
» PACKING OF THE SET ...................................................................................................................... 39
POWER INPUT ..................................................... 120V AC 60 Hz
POWER RATING .................................................................. 167W
PICTURE SIZE ........................................... 3,905cm
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
AUDIO POWER
OUTPUT RATING .............. 3.0W + 3.0W (at 10% distortion and

SHARP CORPORATION

SERVICE MANUAL

MODELS
ELECTRICAL SPECIFICATIONS
SPEAKER
SIZE ........................................................ 12 x 6 cm oval (2 pcs.)
2
(605sq inch)
VOICE COIL IMPEDANCE ............................... 8 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
(Nominal)
Dual CH Operate)
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.
COLOR TELEVISION
Chassis No. GB-1
36US650
(EIA, Channel Plan U.S.A.)
36US650
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  • Page 1: Table Of Contents

    36US650 SERVICE MANUAL COLOR TELEVISION Chassis No. GB-1 36US650 MODELS 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

    36US650 IMPORTANT SERVICE SAFETY PRECAUTION Ë 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 1.

  • Page 3: Safety Notice

    36US650 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

    36US650 LOCATION OF USER'S CONTROL Front Panel IN 2 VIDEO L-AUDIO-R (INSIDE DOOR) POWER CHANNEL UP/DOWN Press Press again Off. ( ) Selects next higher channel. ( ) Selects next lower SENSOR AREA FOR channel. REMOTE CONTROL • Press both at the same...

  • Page 5: Installation And Service Instructions

    36US650 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 4.0A fuse (F701),...
  • Page 6 36US650 For adjustments of this model, the bus data is converted to various analog signals by the D/A converter circuit. Note: There are still a few analog adjustments in this series such as focus and master screen voltage. Follow the steps below whenever the service adjustment is required. See "Table-B" to determine, if serv- ice adjustments are required.

  • Page 7: Contents

    36US650 DATA SERVICE ADJUSTMENT ITEM ADJUSTMENT CONTENTS NUMBER INITIAL VALUE RANGE PICTURE 0-15(00h-0Fh) TINT 0-127(00h-7Fh) COLOR 0-127(00h-7Fh) SUB-COLOR 0-31(00h-1Fh) Must be set to "10" BRIGHT 0-127(00h-7Fh) R CUT-OFF 64-255(40h-FFh) G CUT-OFF 64-255(40h-FFh) B CUT-OFF 64-255(40h-FFh) G DRIVE 0-127(00h-7Fh) B DRIVE...

  • Page 8: Contents

    36US650 DATA SERVICE ADJUSTMENT ITEM ADJUSTMENT CONTENTS NUMBER INITIAL VALUE RANGE EW PARABOLA 0-63(00h-3Fh) Must be set to "27" EW TRAPEZIUM 0-31(00h-1Fh) Must be set to "0B" EW CORNER 0-15(00h-0Fh) Must be set to "08" AFC GAIN 0-3(00h-03h) Must be set to "02"...

  • Page 9: Service Adjustment

    36US650 SERVICE ADJUSTMENT RF AGC Adjustment Sub-picture and Sub-Bright Adjustments 1. Receive a good local channel. 2. Enter the service mode and select the service 1. Receive the window pattern signal. adjustment "R01". • RF INPUT (TU51) 3. Set the data value to point where no noise or beat 2.
  • Page 10 36US650 EW-Corner Vertical-Size and Linearity Adjustments 1. Receive a good local channel. 1. Receive a good local channel. 2. Enter the service mode and select the service 2. Enter the service mode and select the service adjustment "D09" for EW-Corner.
  • Page 11 36US650 Ë MTS ADJUSTMENT Separation Adjustment MTS Level Adjustment 1. Input "SIGNAL 1" (TU51and TU52) and vary the 1. Receive the following composite signal. "M04" and "M07" bus data to get the minimun AC Monaural signal: 400Hz, 100% modulation voltage to pin (39) of IC3001.

  • Page 12: Chassis Layout

    36US650 CHASSIS LAYOUT...

  • Page 13: Schematic Diagrams 1

    36US 650 DESCRIPTION OF SCHEMATIC DIAGRAM WAVEFORM MEASUREMENT CONDITIONS: NOTES: 1. Photographs taken on a standard gated color bar 1. The unit of resistance "ohm" is omitted. (K=k Ω =1000 Ω , M=M Ω ) signal, the tint setting adjusted for proper color. The wave shapes at the red, green and blue cathodes of 2.
  • Page 14 36US650 MODELSCHEMATIC DIAGRAM: MAIN-1 Unit (DUNTKA526WEF9)
  • Page 15 CU36S65 MODEL SCHEMATIC DIAGRAM: MAIN-2 Unit (DUNTKA526WEF9)
  • Page 16 36US650 MODEL SCHEMATIC DIAGRAM: CRT Unit VB90AKB50X/1E...
  • Page 17 36US650 MODEL SCHEMATIC DIAGRAM: AV Unit...
  • Page 18 36US650 MODEL SCHEMATIC DIAGRAM: MTS MODULE Unit...
  • Page 19 36US650 MODEL SCHEMATIC DIAGRAM: CONTROL Unit...
  • Page 20 36US650 PWB-A: MAIN Unit (Wiring Side)
  • Page 21 36US650 PWB-A: MAIN Unit (Chip Parts Side)
  • Page 22 36US650 PWB-C: AV Unit (Wiring Side) PWB-C: AV Unit (Chip Parts Side)
  • Page 23 32US650 PWB-B: CRT Unit (Wiring Side) PWB-S: MTS MODULE Unit (Wiring Side) PWB-S: MTS MODULE Unit (Chip Parts Side)
  • Page 24 36US650 PWB-F: CONTROL Unit (Wiring Side) PWB-F: CONTROL Unit (Component Side)

  • Page 25: Schematic Diagrams

    4. DESCRIPTION IC701 VHiTEA1507/-1 J TEA1507P/N1 IC702 RH-FX0008GEZZ J PC123FY8 in USA: Contact your nearest SHARP Parts Distributor to order. For IC703 VHiSE135N//-1 X SE135N location of SHARP Parts Distributor, Please call Toll-Free; 1- IC751 VHiSTV8164+-1 J I.C. 800-BE-SHARP IC2001 RH-iXA192WJZZQ...

  • Page 26: Main Unit

    36US650 Ref. No. Part No. Description Code Ref. No. Part No. Description Code CF403 RFiLC0013CEZZ J Ceramic Filter PWB-A: DUNTKA526WEF9 CF2040 RFiLA0099CEZZ J Ceramic Filter SF201 RFiLC0405CEZZ J SAW Filter MAIN UNIT VP-CF100K0000 J Peaking 10µH L201 VP-XF1R2K0000 J Peaking 1.2µH...
  • Page 27 36US650 Ref. No. Part No. Description Code Ref. No. Part No. Description Code PWB-A: DUNTKA526WEF9 C702 RC-KZ0029CEZZ J 0.01 250V Ceramic C703 RC-KZ0029CEZZ J 0.01 250V Ceramic MAIN UNIT(Continued) C705 RC-EZ0722CEZZ J 820 200V EL. å C369 VCEA0A1CW227M J 220...
  • Page 28 36US650 Ref. No. Part No. Description Code Ref. No. Part No. Description Code PWB-A: DUNTKA526WEF9 R236 VRS-CY1JF103J J 10k 1/16W M-Ox. R307 VRS-CY1JF333J J 33k 1/16W M-Ox. MAIN UNIT(Continued) R361 VRS-CY1JF224J J 220k 1/16W M-Ox. R362 VRD-RA2BE222J J 2.2k 1/8W...
  • Page 29 36US650 Ref. No. Part No. Description Code Ref. No. Part No. Description Code PWB-A: DUNTKA526WEF9 R771 VRD-RA2BE272J J 2.7k 1/8W Carbon R772 VRS-CY1JF103J J 10k 1/16W M-Ox. MAIN UNIT(Continued) R774 VRS-CY1JF393J J 39k 1/16W M-Ox. R775 VRS-CY1JF563J J 56k 1/16W M-Ox.
  • Page 30 36US650 Ref. No. Part No. Description Code Ref. No. Part No. Description Code MISCELLANEOUS PARTS PWB-A: DUNTKA526WEF9 RY701 RRLYJ0081CEZZ J Relay å MAIN UNIT(Continued) RRLYJ0094CEZZ F701 QFS-B4023CEZZ J Fuse, 4A/AC125V å R2029 VRS-CY1JF103J J 10k 1/16W M-Ox. FH701 QFSHD1013CEZZ J Fuse Holder...

  • Page 31: Crt Unit

    36US650 Ref. No. Part No. Description Code Ref. No. Part No. Description Code R871 VRD-RA2BE223J J 22k 1/8W Carbon PWB-C: DUNTKA527WEA3 R872 VRD-RA2EE680J J 68 1/4W Carbon CRT UNIT R873 VRD-RM2HD224J J 220k 1/2W Carbon R874 VRD-RM2HD184J J 180k 1/2W...
  • Page 32 36US650 Ref. No. Part No. Description Code Ref. No. Part No. Description Code C1453 VCKYCY1HF103Z J 0.01 Ceramic PWB-B: DUNTKA602WEA0 C1454 VCKYCY1HF103Z J 0.01 Ceramic C1455 VCKYCY1HF103Z J 0.01 Ceramic AV UNIT C1456 VCKYCY1CF104Z J 0.1 Ceramic C1457 VCEA0A1CW106M J 10...
  • Page 33 36US650 Ref. No. Part No. Description Code Ref. No. Part No. Description Code PWB-D: DUNTKB224WEA2 PWB-B: DUNTKA602WEA0 MTS MODULE UNIT AV UNIT INTEGRATED CIRCUITS R1433 VRS-CY1JF102J J 1k 1/16W M-Ox. R1434 VRS-CY1JF471J J 470 1/16W M-Ox. IC3001 VHiCXA2074Q-1 J CXA2074Q...

  • Page 34: Control Unit

    36US650 Ref. No. Part No. Description Code Ref. No. Part No. Description Code PWB-F:DUNTKB207WEA3 CONTROL UNIT CAPACITORS [EL.··· Electrolytic C4001 VCEA0A1HW476M J 47 RESISTORS [M-Ox.··· Metal Oxide] R4001 VRD-RA2BE470J J 47 1/8W Carbon R4006 VRD-RA2BE822J J 8.2k 1/8W Carbon R4007 VRD-RA2BE822J J 8.2k 1/8W...

  • Page 35: Miscellaneous Parts

    36US650 Ref. No. Part No. Description Code Ref. No. Part No. Description Code MISCELLANEOUS PARTS CABINET PARTS AACC701 QACCD3065CESA J AC Cord å CCABAA062WEH0 Front Cabinet Ass'y VSP1206PB648A Speaker(L), 8 ohm Not Available- Frront Cabinet or VSP1206PB598A VSP1206PB648A Speaker(R), 8 ohm...

  • Page 36: Packing Of The Set

    36US650 PACKING OF THE SET Polyethylene Bag Operation Manual Infrared R/C Unit Batteries Polyethylene Sheet Buffer Material FRONT Packing Case Use tape to fix the top side of packing case. REAR Use 12 staples to fix the bottom side of packing case.
  • Page 37 SHARP ELECTRONICA MEXICO S. A. DE C. V. TQ0000-S D SEM P SEMEX Blvd. SHARP No. 3510 Parque Industrial June.

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