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32UC4

SHARP CORPORATION

This document has been published to be used for after
sales service only.
The contents are subject to change without notice.

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.

COLOR TELEVISION

Chassis No. GB-3U

Page

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 ELECTRICAL SPECIFICATIONS ......................................................................................................... 1

»

 IMPORTANT SERVICE SAFETY PRECAUTION ................................................................................. 2

»

 LOCATION OF USER'S CONTROL ..................................................................................................... 4

»

 INSTALLATION AND SERVICE INSTRUCTIONS ................................................................................ 5

»

 SERVICE ADJUSTMENT ................................................................................................................... 10

»

 WAVEFORMS ..................................................................................................................................... 13

»

 CHASSIS LAYOUT ............................................................................................................................. 14

»

 BLOCK DIAGRAM .............................................................................................................................. 15

»

 DESCRIPTION OF SCHEMATIC DIAGRAMS ................................................................................... 16

»

 SCHEMATIC DIAGRAMS ................................................................................................................... 17

»

 PRINTED WIRING BOARD ASSEMBLIES ........................................................................................ 26

»

 REPLACEMENT PARTS LIST ............................................................................................................ 30

»

 PACKING OF THE SET ...................................................................................................................... 39

CONTENTS

SPEAKER

SIZE ........................................................ 12 x 6 cm oval (2 pcs.)

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

(EIA, Channel Plan U.S.A.)

POWER INPUT ..................................................... 120V AC, 60 Hz

POWER RATING .................................................................. 135W

PICTURE SIZE ............................................ 3073cm

(476sq inch)

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

 (Nominal)

AUDIO POWER

OUTPUT RATING .............. 3.0W + 3.0W (at 10% distortion and

Dual CH Operate)

Specifications are subject to change without
prior notice.

ELECTRICAL SPECIFICATIONS

MODEL

SERVICE MANUAL

32UC4

S43Z732UC4///

Содержание 32UC4

Страница 1: ...IAGRAMS 17 PRINTED WIRING BOARD ASSEMBLIES 26 REPLACEMENT PARTS LIST 30 PACKING OF THE SET 39 CONTENTS SPEAKER SIZE 12 x 6 cm oval 2 pcs 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 EIA Channel Plan U S A POWER INPUT 120V AC 60 Hz POWER RATING 135W PICTURE SIZE 3073cm2 4...

Страница 2: ...gh voltage with a meter to be certain that the high voltage does not exceed the specified value and that it is regulating correctly 5 Do not use a picture tube other than that specified or make unrecommended circuit modifications to the high voltage circuitry 6 When trouble shooting and taking test measurements on a receiver with excessive high voltage avoid being unnecessarily close to the receiv...

Страница 3: ...ent covers or shields isolation resistor capacity networks mechanical insulators etc 3 To be sure that no shock hazard exists check for leakage current in the following manner Plug the AC cord directly into a 120 volt AC outlet Do not use an isolation transformer for this test Using two clip leads connect a 1 5k ohm 10 watt resistor paralleled by a 0 15µF capacitor in series with all exposed metal...

Страница 4: ...NAL PREFERENCE With the Personal Preference buttons you can program your favorite programs by using the 4 categories A B C and D The channels can be accessed quickly by using these buttons VOLUME UP DOWN Increases sound Decreases sound Changes or selects the TV adjustments on On Screen Display MENU Press Accesses MAIN MENU Press again Exits MAIN MENU DVD VCR CONTROL CATV DVD TV VCR MODE SELECT SWI...

Страница 5: ...f the horizontal oscillator does not stop in step 5 the circuit must be repaired before the set is returned to the customer HIGH VOLTAGE CHECK High voltage is not adjustable but must be checked to verify that the receiver is operating within safe and efficient design limitations as specified checks should be as follows 1 Connect an accurate high voltage meter between ground and anode of picture tu...

Страница 6: ... in the video adjustment menu to ensure customer controls are in their proper reset position 2 Service number selection Once in the service mode press the Ch up or Ch down button on the remote controller or at the set The service adjustment number will vary in increments of one from V01 to P08 Select the item you wish to adjust 3 Data number selection Press the Vol up or Vol down button to adjust ...

Страница 7: ...2 3Eh Component Input 3E V44 COLOR COMPONENT 0 127 00h 7Fh 72 48h Component Input 48 V45 BRIGHT COMPONENT 0 127 00h 7Fh 84 54h Component Input V46 R CUT OFF COMPONENT 64 255 40h FFh 64 40h Component Input V47 G CUT OFF COMPONENT 64 255 40h FFh 64 40h Component Input V48 B CUT OFF COMPONENT 64 255 40h FFh 64 40h Component Input V49 G R DRIVE COMPONENT 0 127 00h 7Fh 64 40h Component Input V50 B DRIV...

Страница 8: ...36 24h 24 EX2 CC POSITION 0 127 00h 7Fh 27 1Bh 1C EX3 INT 0 255 00h FFh 122 7Ah Interrupt period adjustment 7A EX4 A ATT 0 127 00h 7Fh 90 5Ah 5A EX5 TUNER data 0 3 00h 03h 0 00h 00 EX6 Think chip Slice LEVEL 0 255 00h FFh 54 36h 12 EX7 RLY DELAY TIME 0 255 00h FFh 0 00h For the power control 00 EX8 ADG ON TIME 0 255 00h FFh 10 0Ah For the power control 0A SERVICE NUMBER DATA ADJUSTMENT ITEM INITIA...

Страница 9: ...vice mode for more than 2 seconds will automatically write the above initial values into IC2101 NOTES X IC2101 IC3001 CRT IC1801 Holding down both the VOL up and CH up buttons on the TV set in the service mode for more than 2 seconds will automatically write the above initial values into IC2101 Then perform a complete adjustment Adjust items related to picture tube only Adjust items related to MTS...

Страница 10: ...Adjustment 1 Receive a good local channel 2 Enter the service mode and select the service adjustment V03 and set to 00 minimum color Record original data code under adjustment V03 before changing V03 does not have to be adjusted if you selected a B W picture or monoscope pattern 3 Alternately adjust the service adjustment data of V09 and V10 until a good grey scale with normal whites is obtained R...

Страница 11: ... select the service adjustment D08 for EW Trapezium 3 Adjust the D08 bus data to get the best position display DISPLAY OF TEXT BOX TEXT BOX A B A B 2 SPEC INSPECTION A B 2 5mm 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 b...

Страница 12: ... normal color level P IN P Y OFF SET Adjustment 1 Receive a good local channel 2 Enter the service mode and select the service adjustment P04 3 Adjust data value to 09h P IN P H POSITION Adjustment 1 Receive a good local channel 2 Enter the service mode and select the service adjustment P05 3 Adjust data value to 0Ah P IN P BURST GATE PULSE for MAIN 1 Receive a good local channel 2 Enter the servi...

Страница 13: ...13 32UC4 WAVEFORMS ...

Страница 14: ...14 32UC4 CHASSIS LAYOUT ...

Страница 15: ...15 32UC4 BLOCK DIAGRAM ...

Страница 16: ...for normal picture unless otherwise indicated 2 All voltages measured with 1000µ V B W or Color signal WAVEFORM MEASUREMENT CONDITIONS 1 Photographs taken on a standard gated color bar signal the tint setting adjusted for proper color The wave shapes at the red green and blue cathodes of the picture tube depend on the tint color level and picture control 2 indicates waveform check points See chart...

Страница 17: ...17 32UC4 6 5 4 3 2 1 A B C D E F G H SCHEMATIC DIAGRAM CRT Unit ...

Страница 18: ...8 7 10 9 6 5 4 3 2 1 A B C D E F G H 18 32UC4 SCHEMATIC DIAGRAM MAIN 1 Unit 25 ...

Страница 19: ...17 16 19 18 15 14 13 12 11 10 19 32UC4 ...

Страница 20: ...8 7 10 9 6 5 4 3 2 1 A B C D E F G H 20 32UC4 SCHEMATIC DIAGRAM MAIN 2 Unit ...

Страница 21: ...17 16 19 18 15 14 13 12 11 10 21 32UC4 ...

Страница 22: ...8 7 10 9 6 5 4 3 2 1 A B C D E F G H 22 32UC4 SCHEMATIC DIAGRAM 2 LINE Y C Unit ...

Страница 23: ...17 16 19 18 15 14 13 12 11 10 23 32UC4 ...

Страница 24: ...8 7 10 9 6 5 4 3 2 1 A B C D E F G H 24 32UC4 SCHEMATIC DIAGRAM P IN P Unit ...

Страница 25: ...17 16 19 18 15 14 13 12 11 10 25 32UC4 ...

Страница 26: ...26 32UC4 6 5 4 3 2 1 A B C D E F G H PWB A MAIN Unit Components Side PRINTED WIRING BOARD ASSEMBLIES ...

Страница 27: ...27 32UC4 6 5 4 3 2 1 A B C D E F G H PWB A MAIN Unit Chip Parts Side ...

Страница 28: ...28 32UC4 6 5 4 3 2 1 A B C D E F G H PWB B CRT Unit Wiring Side PWB D 2 LINE Y C Unit Chip Parts Side PWB D 2 LINE Y C Unit Wiring Side ...

Страница 29: ...29 32UC4 6 5 4 3 2 1 A B C D E F G H PWB R P IN P Unit Wiring Side PWB R P IN P Unit Chip Parts Side ...

Страница 30: ...C123Y82 AB å IC703 VHiSE125N 1 X I C AD IC751 VHiPQ09RD11 1 X PQ09RD11 AD IC900 VHiCXA2089Q 2Y X CXA2089Q 6T AK IC1403 VHiPQ05RD11 1 X PQ05RD11 AD IC2001 RH iXA418WJZZQ X TMP88CS38BFG AN IC2040 VHiKiA7045A 1 X KIA7045AP AB IC2101 VHiBR2416E2 1 X BR24C16F AD IC3001 VHiCXA2074Q 1 X CXA2074Q AP TRANSISTORS Q201 VS2SC2735 1E X 2SC2735 AB Q361 VS2SB709AR 1 X 2SB709AR AA Q401 VS2SD601AR 1 X 2SD601AR AA ...

Страница 31: ...00p 50V Ceramic AA C223 VCKYCY1CF104Z X 0 1 16V Ceramic AA C224 VCEA0A1HW474M X 0 47 50V Electrolytic AA C225 VCKYCY1CF104Z X 0 1 16V Ceramic AA C227 VCEA0A1HW106M X 10 50V Electrolytic AA C228 VCKYCY1CF104Z X 0 1 16V Ceramic AA C229 VCEA0A1CW477M X 470 16V Electrolytic AB C231 VCEA0A1EW476M X 47 25V Electrolytic AA C232 VCKYCY1HB222K X 2200p 50V Ceramic AA C233 VCEA0A1HW474M X 0 47 50V Electrolyt...

Страница 32: ...Electrolytic AA C905 VCEA0A1HW105M X 1 50V Electrolytic AA C906 VCKYCY1HB681K X 680p 50V Ceramic AA C907 VCEA0A1HW105M X 1 50V Electrolytic AA C908 VCKYCY1HB103K X 0 01 50V Ceramic AA C909 VCEA0A1HW105M X 1 50V Electrolytic AA C910 VCEA0A1HW105M X 1 50V Electrolytic AA C911 VCEA0A1HW105M X 1 50V Electrolytic AA C912 VCEA0A1HW105M X 1 50V Electrolytic AA C913 VCEA0A1HW105M X 1 50V Electrolytic AA C...

Страница 33: ...3 3k 1 16W Metal Oxide AA R445 VRS CY1JF332J X 3 3k 1 16W Metal Oxide AA R446 VRS CY1JF332J X 3 3k 1 16W Metal Oxide AA R447 VRS CY1JF101J X 100 1 16W Metal Oxide AA R448 VRS CY1JF101J X 100 1 16W Metal Oxide AA R449 VRS CY1JF101J X 100 1 16W Metal Oxide AA å R451 VRS RG3AB103J X 10k 1W Metal Oxide AB R452 VRD RM2HD823J X 82k 1 2W Carbon AA R453 VRD RM2HD223J X 22k 1 2W Carbon AA R454 VRS CY1JF471...

Страница 34: ...al Oxide AA R943 VRS CY1JF101J X 100 1 16W Metal Oxide AA R944 VRS CY1JF223J X 22k 1 16W Metal Oxide AA R945 VRS CY1JF101J X 100 1 16W Metal Oxide AA R946 VRS CY1JF103J X 10k 1 16W Metal Oxide AA R947 VRS CY1JF223J X 22k 1 16W Metal Oxide AA R948 VRS CY1JF101J X 100 1 16W Metal Oxide AA R949 VRS CY1JF223J X 22k 1 16W Metal Oxide AA R950 VRS CY1JF750J X 75 1 16W Metal Oxide AA R951 VRD RA2BE680J X ...

Страница 35: ... AB RDA750 PRDAR5072CEFW X Heat Sink for IC751 AB RDA1403 PRDAR5072CEFW X Heat Sink for IC1403 AB RMC2601 RRMCU0222CEZZ X Remote Receiver AD RY701 RRLYJ0081CEZZ X Relay AD CF2040 RCRM 0003CEZZ X Ceramic Vibrator AC TP701 QLUGP0102PEZZ X Lug AA PWB B DUNTKB568WEV1 CRT Unit TRANSISTORS Q850 VS2SC4544LB1E X 2SC4544LB AC Q851 VS2SC4544LB1E X 2SC4544LB AC Q852 VS2SC4544LB1E X 2SC4544LB AC Q853 VS2SC319...

Страница 36: ...p 50V Ceramic AA C1419 VCCCCY1HH3R0C X 3p 50V Ceramic AA C1420 VCCCCY1HH270J X 27p 50V Ceramic AA C1423 VCFYFA1HA474J X 0 47 50V AB C1424 VCEA0A1CW107M X 100 16V Electrolytic AA C1425 VCCCCY1HH820J X 82p 50V Ceramic AA C1429 VCEA0A1CW107M X 100 16V Electrolytic AA C1430 VCKYCY1CB104K X 0 1 16V Ceramic AA C1431 VCKYCY1HB103K X 0 01 50V Ceramic AA C1432 VCKYCY1HB103K X 0 01 50V Ceramic AA RESISTORS ...

Страница 37: ...723 VRS CY1JF822J X 8 2k 1 16W Metal Oxide AA R1724 VRS CY1JF222J X 2 2k 1 16W Metal Oxide AA R1741 VRD RA2BE102J X 1k 1 8W Carbon AA R1742 VRS CY1JF102J X 1k 1 16W Metal Oxide AA R1743 VRS CY1JF151J X 150 1 16W Metal Oxide AA R1744 VRS CY1JF122J X 1 2k 1 16W Metal Oxide AA R1745 VRS CY1JF474J X 470k 1 16W Metal Oxide AA R1746 VRS CY1JF122J X 1 2k 1 16W Metal Oxide AA R1747 VRD RA2BE822J X 8 2k 1 ...

Страница 38: ... QCNW B127WJZZ X Connecting Cord N AB 1 CCABAA275WEH0 X Front Cabinet Ass y BE 1 1 Not Available Front Cabinet 1 2 GCOVA0119GJKA X RC LED Cover AB 1 3 HBDGB1009MESB X SHARP Badge AC 1 4 JBTN 0119GJKA X Button Power AB 1 5 JBTN 0120GJKA X Button Menu AB CH Up Down VOL Up Down RRMCGA036WJSB X Infrared R C Unit TiNS A585WJZZ X Operation Manual AE TCAUH3044GJZZ X Caution Card AB TGAN 0001GJZZ X Regist...

Страница 39: ... Case MARK Not replacement items FRONT Buffer Material Polyethylene Mat Polyethylene Bag Operation Manual Infrared R C unit Batteries REAR Use tape to fix the top side of packing case Use 12 staples to fix the bottom side of packing case ...

Страница 40: ... form or by any means electronic mechanical photocopying recording or otherwise without prior written permission of the publisher SHARP CORPORATION AV Systems Group Quality Reliability Control Center Yaita Tochigi 329 2193 Japan TQ1522 S Apr 2003 Printed in Japan In Japan gedruckt MY DS Design and Production Information Design JaJAPANpan Production JaSEMEX pan ...

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