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Sharp 32UF5 Service Manual

Chassis no. gb-3u
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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.
» ELECTRICAL SPECIFICATIONS ......................................................................................................... 1
» IMPORTANT SERVICE SAFETY PRECAUTION ................................................................................. 2
» LOCATION OF USER'S CONTROL ..................................................................................................... 4
» INSTALLATION AND SERVICE INSTRUCTIONS ................................................................................ 6
» SERVICE ADJUSTMENT ..................................................................................................................... 9
» DESCRIPTION OF SCHEMATIC DIAGRAMS & WAVEFORMS ........................................................ 12
» CHASSIS LAYOUT ............................................................................................................................. 13
» BLOCK DIAGRAM .............................................................................................................................. 14
» SCHEMATIC DIAGRAMS ................................................................................................................... 15
» PRINTED WIRING BOARD ASSEMBLIES ........................................................................................ 26
» REPLACEMENT PARTS LIST ............................................................................................................ 39
» PACKING OF THE SET ...................................................................................................................... 41
POWER INPUT ..................................................... 120V AC, 60 Hz
POWER RATING .................................................................. 160W
PICTURE SIZE ........................................... 3074 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
AUDIO POWER
OUTPUT RATING .............. 5.0W + 5.0W (at 10% distortion and

SHARP CORPORATION

SERVICE MANUAL

MODELS
CONTENTS

ELECTRICAL SPECIFICATIONS

SPEAKER
SIZE ........................................................ 12 x 6 cm oval (2 pcs.)
2
(476sq 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-3U
32UF5
(EIA, Channel Plan U.S.A.)
32UF5
Page

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Summary of Contents for Sharp 32UF5

  • Page 1: Table Of Contents

    32UF5 SERVICE MANUAL COLOR TELEVISION Chassis No. GB-3U 32UF5 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

    32UF5 IMPORTANT SERVICE SAFETY PRECAUTION Service work should be performed only by qualified service technicians who are Ë 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

    32UF5 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

    LOCATION OF USER'S CONTROL(32UF5) Front Panel VIDEO/AUDIO IN 2 POWER TERMINALS Press POWER MENU – VOL + PULL-OPEN Press again Off. (INSIDE DOOR) POWER MENU – VOL + CHANNEL UP/DOWN SENSOR AREA FOR (8 ) Selects next higher REMOTE CONTROL channel.

  • Page 5: Installation And Service Instructions

    32UF5 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: Service Mode

    32UF5 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 TINT-S 0-127 (00h-7Fh) 62 (3Eh) Component Input C-TRAP 0-1 (00h-01h) 0 (00h) AUTO FRESH 0-1 (00h-01h) 0 (00h) SHARP P F 0-1 (00h-01h) 1 (01h) CD MATRIX 0-3 (00h-03h) 2 (02h) B-Y ATT 0-1 (00h-01h) 0 (00h) R-Y ATT 0-1 (00h-01h)
  • Page 8 32UF5 DATA NOTES FIXED VALUE SERVICE ADJUSTMENT ITEM (HEX) NUMBER RANGE INITIAL VALUE EW CORNER BOTTOM 19-81 (13h-51h) 50 (32h) Offset toward D13. NOISE DET LEVEL 0-3 (00h-03h) 0 (00h) V CENTERING 0-63 (00-3Fh) 36 (24h) V-AGC 0-1 (00h-01h) 0 (00h)

  • Page 9: Service Adjustment

    32UF5 Holding down both the VOL-up and CH-up buttons on the TV set at service mode for more than 2 seconds will ADJUSTMENT PART REPLACED NOTES NECESSARY UNNECESSARY IC2001 Data is stored in IC2101. The adjustment is needed to compensate for characteristics of parts...

  • Page 10: Focus Adjustment

    32UF5 Sub-Tint Adjustment Note: Aging for 10 min before adjustment. After the adjustment of V-center and V-size, re- 1. Receive the half color bar signal. • RF INPUT (TU51) adjustment for this V-line. 2. Get into Y-Mute by R/C, or by setting the "V11" bus Vertical Phase Adjustment data to "01".

  • Page 11: Mts Adjustment

    32UF5 Ë MTS ADJUSTMENT MTS Level Adjustment 1. Set the sound volume above 1. Monoral signal: 400Hz, 100% modulation 2. Confirm "EX4" data is "5Ah". 3. Vary the "M01" bus data until the voltage to pin (39) of IC3001 to become the value as stated below.

  • Page 12: Description Of Schematic Diagrams & Waveforms

    32UF5 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. Ω Ω Ω signal, the tint setting adjusted for proper color. The (K=k =1000...

  • Page 13: Chassis Layout

    32UF5 CHASSIS LAYOUT(32UF5)

  • Page 14: Block Diagram

    32UF5 BLOCK DIAGRAM(32UF5) 4001 4001 4001 4001...

  • Page 15: Schematic Diagrams

    32UF5...
  • Page 16 32UF5...
  • Page 17 32UF5...
  • Page 18 32UF5...
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  • Page 26: Printed Wiring Board Assemblies

    32UF5 PRINTED WIRING BOARD ASSEMBLIES PWB-A: MAIN Unit (Components Side)
  • Page 27 32UF5 PWB-A: MAIN Unit (Chip Parts Side)
  • Page 28 32UF5 PWB-B: CRT Unit (Wiring Side) PWB-C: 3-LINE Y/C Unit (Wiring Side) PWB-C: 3-LINE Y/C Unit (Chip Parts Side)
  • Page 29 32UF5 PWB-H: DF MODULE Unit (Wiring Side)
  • Page 30 32UF5 PWB-F: CONTROL Unit(32F631 ONLY) (Wiring Side)
  • Page 31 X I.C. ' å IC751 VHiPQ09RD11-1 X PQ09RD11 IC900 VHiCXA2089Q-2Y X CXA2089Q-6T in USA: Contact your nearest SHARP Parts Distributor to order. For IC1403 VHiPQ05RD11-1 X PQ05RD11 location of SHARP Parts Distributor, Please call Toll-Free; 1- IC2001 RH-iXA418WJZZQ X TMP88CS38BFG 800-BE-SHARP...
  • Page 32 32UF5 Ref. No. Part No. Description Code Ref. No. Part No. Description Code TRANSFORMERS PWB-A: DUNTKB567WEZ4(32UF5) å T601 RTRNZ0057PEZZ X Transformer ' å T602 RTRNFA041WJZZ X H-Volt Transformer MAIN UNIT (Continued) å T702 RTRNWA072WJZZ X Transformer CAPACITORS ∗ D454 RH-EX0628GEZZ X Zener Diode, 8.2V...
  • Page 33 32UF5 Ref. No. Part No. Description Code Ref. No. Part No. Description Code C805 VCEA0A0JW108M+ X 1000 6.3V Electrolytic PWB-A: DUNTKB567WEZ4(32UF5) ∗ C806 VCKYCY1CF104Z X 0.1 Ceramic ∗ C807 VCKYCY1CF104Z X 0.1 Ceramic MAIN UNIT (Continued) ∗ C808 VCKYCY1CF104Z X 0.1 Ceramic ∗...
  • Page 34 Part No. Description Code Ref. No. Part No. Description Code ∗ R406 VRS-CY1JF473J X 47k 1/16W Metal Oxide PWB-A: DUNTKB567WEZ4(32UF5) ∗ R407 VRS-CY1JF102J X 1k 1/16W Metal Oxide ∗ R408 VRS-CY1JF683J X 68k 1/16W Metal Oxide MAIN UNIT (Continued) ∗...
  • Page 35 Ref. No. Part No. Description Code Ref. No. Part No. Description Code ∗ R905 VRS-CY1JF223J X 22k 1/16W Metal Oxide PWB-A: DUNTKB567WEZ4(32UF5) ∗ R906 VRD-RA2BE332J X 3.3k 1/8W Carbon ∗ R907 VRS-CY1JF152J X 1.5k 1/16W Metal Oxide MAIN UNIT (Continued) ∗...
  • Page 36 R3004 VRS-CY1JF104J X 100k 1/16W Metal Oxide RDA1403PRDAR5072CEFW X Heat Sink for IC1403 ∗ R3005 VRS-CY1JF623J X 62k 1/16W Metal Oxide RMC2601 RRMCU0222CEZZ X Remote Receiver (32UF5) AD ∗ R3007 VRS-CY1JF332J X 3.3k 1/16W Metal Oxide RY701 RRLYJ0081CEZZ X Relay ∗...
  • Page 37 32UF5 Ref. No. Part No. Description Code Ref. No. Part No. Description Code ∗ PWB-B: DUNTKA527WEV9 R1530VRD-RA2BE122J X1.2k1/8WCarbonAA CRT UNIT (Continued) DIODES ∗ D853 RH-EX0647GEZZ X Zener Diode, 15V ∗ D854 VHD1SS119//-1 X 1SS119 ∗ D855 VHD1SS119//-1 X 1SS119 ∗...
  • Page 38 C1685 VCFYFA1HA474J+ X 0.47 Mylar C1686 VCEA0A1VW108M+X 1000 35V Electrolytic PWB-F: DUNTKB207WEA5 C1687 VCEA0A1EW107M+X 100 Electrolytic C1695 VCFYFA1HA224J+ X 0.22 Mylar CONTROL UNIT(32UF5) RESISTORS R1610 VRS-VV3DB103J X 10k 2W Metal Oxide CAPACITOR R1627 VRS-KT3LB122J X 1.2k 3W Metal Oxide C4001 VCEA0A1HW476M+X 47 Electrolytic ∗...

  • Page 39: Replacement Parts List

    SUPPLIED ACCESSORIES DF MODULE UNIT (Continued) RRMCGA035WJSA X Infrared R-C Unit ∗ R1686 VRD-RA2BE103J X 10k 1/8W Carbon TINS-A759WJZZ ∗ X Opearation Manual(32UF5) AE R1687 VRD-RA2BE103J X 10k 1/8W Carbon ∗ R1688 VRD-RA2BE473J X 47k 1/8W Carbon TGAN-0001GJZZ X Registration Card ∗...

  • Page 40: Cabinet Parts Location

    32UF5 Ref. No. Part No. Description Code Ref. No. Part No. Description Code CABINET PARTS LOCATION CABINET PARTS 32UF5 CCABA0176WEH3 X Front Cabinet Ass'y Not Available - Front Cabinet — HBDGB3141CESA X Badge HDECQ0105GJKA X Decration Plate JBTN-0128GJKA X Button...

  • Page 41: Packing Of The Set

    32UF5 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 42 QRC0008-U June. 2003 Modify : SEMEX Design and Production Information SHARP ELECTRONICA MEXICO S. A. DE C. V. Design base : JAPAN Quality & Reliability Control Center Production : SEMEX Blvd. SHARP No. 3510 Parque Industrial Rosarito...

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