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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-3D

Page

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

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

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

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

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 SERVICE ADJUSTMENT ..................................................................................................................... 9

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 CHASSIS LAYOUT ............................................................................................................................. 12

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 BLOCK DIAGRAM .............................................................................................................................. 13

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 DESCRIPTION OF SCHEMATIC DIAGRAMS & WAVEFORMS ........................................................ 14

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 SCHEMATIC DIAGRAMS ................................................................................................................... 15

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 PRINTED WIRING BOARD ASSEMBLIES ........................................................................................ 2

2

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 PARTS LIST ........................................................................................................................................

27

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 PACKING OF THE SET ...................................................................................................................... 3

6

CONTENTS

SPEAKER

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

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

Digital Terrestrial Broadcast (VHF/UHF) ....................... 2 thru 69

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

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

POWER RATING ................................................................. 163 W

PICTURE SIZE ........................................... 3074 cm

(476sq inch)

CONVERGENCE ............................................................. Magnetic

SWEEP DEFLECTION .................................................... Magnetic

FOCUS ............................................... Hi-Bi-Potential Electrostatic

INTERMEDIATE FREQUENCIES

Picture IF Carrier Frequency ...... 45.75 MHz (Analog Terrestrial)

Sound IF Carrier Frequency ....... 41.25 MHz (Analog Terrestrial)

Color Sub-Carrier Frequency ..... 42.17 MHz (Analog Terrestrial)

IF Center Frequency ........................ 44 MHz (Digital Terrestrial)

 (Nominal)

AUDIO POWER

OUTPUT RATING .............. 5.0W + 5.0W (at 10% distortion and

Dual CH Operate) 

Specifications are subject to change without
prior notice.

ELECTRICAL SPECIFICATIONS

MODEL

SERVICE MANUAL

32SF56B

32SF56B

Summary of Contents for 32SF56B

Page 1: ...SET 36 CONTENTS SPEAKER SIZE 12 x 6 cm oval 2 pcs 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 Digital Terrestrial Broadcast VHF UHF 2 thru 69 EIA Channel Plan U S A POWER INPUT 120V AC 60 Hz POWER RATING 163 W PICTURE SIZE 3074 cm2 476sq inch CONVERGENCE Magnetic SWEEP D...

Page 2: ...e 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 receiver Do not...

Page 3: ...s 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 cabinet ...

Page 4: ...gain Off REMOTE KEYPAD 0 9 Sets the channel FLASHBACK Returns to previous channel DOT Sets the channel PERSONAL 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 Displ...

Page 5: ...izontal 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 tube 2 Oper...

Page 6: ...e from V01 to M05 Select the item you wish to adjust 3 Data number selection Press the Vol up or Vol down button to adjust the data number To enter the service mode and exit serv ice mode To enter the service mode manually just press and hold the Vol down and Ch up buttons at the same time plug the AC cord into a wall socket Now the TV set is switched on and enters the service mode To exit the ser...

Page 7: ...8 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 DRIVE COMPONENT 0 127 00h 7Fh 64 40h Component Input V51 SHARP COMPONENT 0 63 00h 3Fh 44 2Ch Component Input 2C V52 TINT S 0 127 00h 7Fh 62 3Eh S Terminal Input 3E V53 C TRAP 0 1 00h 01h 00 00h 00 V59 AUTO FRESH 0 1 00h 01h 00 00h 00 V60 SHARP P F 0 1 00h 01h 01 01h 01 V61...

Page 8: ...08h D06 V S CORRECTION 0 15 00h 0Fh 12 0Ch D07 EW PARABOLA 0 63 00h 3Fh 43 2Bh D08 EW TRAPEZIUM 0 63 00h 3Fh 36 24h D10 AFC GAIN 0 3 00h 03h 02 02h 02 D11 V EHT 0 7 00h 07h 06 06h D12 H EHT 0 7 00h 07h 06 06h D13 EW CORNER 0 31 00h 1Fh 08 0Dh D14 EW CORNER BOTTOM 19 81 13h 51h 50 33h Offset toward D13 D15 NOISE DET LEVEL 0 3 00h 03h 00 00h 00 D18 V CENTERING 0 63 00 3Fh 36 24h D19 V AGC 0 1 00h 01...

Page 9: ... Screen Adjustment 1 Receive a good local channel 2 Enter the service mode and select the service adjustment V03 and set the data value to 00 to set the color level to minimum Record original data code under adjustment V03 before changing You may skip this step if you selected a B W picture or monoscope pattern 3 Select the service adjustment V11 and adjust the data value to 01 this turn off the l...

Page 10: ...ustment select data bus D05 and adjust to get the proper vertical linearity SCREEN FORMAT 16 9 5 Input data of D22 to mines 33 step from D03 data V SIZE 6 Input data of D24 same as D05 data V LIN Note Aging for 10 min before adjustment After the adjustment of V center and V size re adjustment for this V line Vertical Phase Adjustment SCREEN FORMAT 4 3 1 Enter the service mode and input data of 00h...

Page 11: ...paration Adjustment 1 Input SIGNAL 1 and vary the M04 bus data to get the minimun AC voltage to pin 39 of IC3001 2 Input SIGNAL 2 and vary the M05 bus data to get the minimun AC voltage to pin 39 of IC3001 SIGNAL 1 300Hz 30 modulation Lch only NR ON SIGNAL 2 3kHz 30 modulation Lch only NR ON Note SIGNAL 1 Adj for wideband SIGNAL 2 Adj for spectral Check the output of the speaker at the maximum vol...

Page 12: ...CHASSIS LAYOUT 32SF56B 12 ...

Page 13: ...BLOCK DIAGRAM 32SF56B 13 32SF56B ...

Page 14: ...ture 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 waveforms are...

Page 15: ...6 5 4 3 2 1 A B C D E F G H SCHEMATIC DIAGRAMS CRT UNIT 32SF56B 15 ...

Page 16: ...7l 0 82 2W 5 6k 7W 4 7 1W 33 1W 18k 1 16W 16000p 1800V 470p 2kv 0 39 250V LA78041 E ZA057l 0 82 2W 5 6k 7W 4 7 1W 33 1W 18k 1 16W VB80ALB20X 1E VB80ALB20X 1E 17000p 1800V 270p 2kv 0 51 250V TDA8177 ZA062 0 68 2W 4 7k 7W 1 5 2W 0 47 1W 15k 1 16W 17000p 1800V 270p 2kv 0 51 250V TDA8177 ZA062 0 68 2W 4 7k 7W 1 5 2W 0 47 1W 15k 1 16W A B C D E F G H 10 9 8 7 6 5 4 3 2 1 32SF56B 16 SCHEMATIC DIAGRAM MA...

Page 17: ...17 16 19 18 15 14 13 12 11 10 32SF56B 17 ...

Page 18: ...A B C D E F G H 10 9 8 7 6 5 4 3 2 1 32SF56B 18 SCHEMATIC DIAGRAM MAIN 2 Unit ...

Page 19: ...17 16 19 18 15 14 13 12 11 10 32SF56B 19 ...

Page 20: ...8 7 10 9 6 5 4 3 2 1 A B C D E F G H 32SF560 2 LINE Y C UNIT 20 ...

Page 21: ...17 16 19 18 15 14 13 12 11 10 32SF560 21 ...

Page 22: ...8 7 10 9 6 5 4 3 2 1 A B C D E F G H PRINTED WIRING BOARD ASSEMBLIES PWB A MAIN Unit Wiring Components Side 32SF56B 22 ...

Page 23: ...17 16 19 18 15 14 13 12 11 10 32SF56B 23 ...

Page 24: ...8 7 10 9 6 5 4 3 2 1 A B C D E F G H PWB A MAIN Unit Components side 32SF56B 24 ...

Page 25: ...17 16 19 18 15 14 13 12 11 10 32SF56B 25 ...

Page 26: ...6 5 4 3 2 1 A B C D E F G H PWB D 2 LINE Y C Unit Wiring Side PWB B CRT Unit Wiring Side PWB D 2 LINE Y C Unit Chip Parts Side 32SF56B 26 ...

Page 27: ...35N F X I C AF IC751 VHIPQ09RDA1 1 X PQ090RDA1SZ AE IC900 VHICXA2089Q 2Y X CXA2089Q 6T AN IC1101 VHIPQ1CZ41H 1Y X PQ1CZ41H2ZPH AG IC1102 VHIBA00BC0W 1S X BA00BC0WT V5 AF IC1103 VHINJ2584AM 1Y X NJ2584AM AH IC1104 VHIBA00BC0W 1S X BA00BC0WT V5 AF IC1403 VHIPQ05RDA1 1 X PQ050RDA1SZ AE IC2001 RH IXB644WJQ2Q X TMP88CS38BFG AR IC2040 VHIKIA7045A 1 X KIA7045AP AD IC2101 VHIBR24L16F 1Y X BR24L16F AE IC30...

Page 28: ...19GEZZY X Zener Diode 6 2V AB D2041 VHD1SS133 1Y X Diode AA D2042 VHD1SS133 1Y X Diode AA D2060 RH EX0619GEZZY X Zener Diode 6 2V AB TH501 RH HZ0004GEZZ X Thermistor AD U VA701 RH VXA009WJZZ X VARISTOR AC U PR701 RMPTP0092CEZZ X Packaged Circuit AF X801 RCRSAA010WJZZ X Crystal AD CF302 RFILC0449CEZZ X Filter AC CF401 RFILC0446CEZZ X Filter AC CF2040 RCRM 0003CEZZ X Ceramic Vibrator AD L201 VP XF1R...

Page 29: ...V Mylar AA Ref No Part No Description Code U C701 RC FZA146WJZZ X 0 33 AC275V M Poly AC C702 RC KZ0029CEZZ X 0 01 AC250V Ceramic AB C703 RC KZ0029CEZZ X 0 01 AC250V Ceramic AB U C705 RC EZ0722CEZZ X 820 200V EL AL U C706 RC KZ0089GEZZA X 1000p AC250V Ceramic AB U C707 RC KZ0092GEZZA X 3300p AC250V Ceramic AC U C708 RC FZA146WJZZ X 0 33 AC275V M Poly AC U C723 RC EZ0724CEZZ X 100 160V EL AE U C725 ...

Page 30: ...1EB123KY X 0 012 25V Ceramic AA C3004 VCEA0A1HW105M X 1 50V EL AA C3005 VCEA0A1HW475M X 4 7 50V EL AA Ref No Part No Description Code C3006 VCEA0A1HW106M X 10 50V EL AA C3007 VCEA0A1HW475M X 4 7 50V EL AA C3008 VCKYCY1CF104ZY X 0 1 16V Ceramic AA C3009 VCEA0A1CW477M X 470 16V EL AB C3010 VCE9GA1HW475M X 4 7 50V EL AB C3011 VCEA0A1HW475M X 4 7 50V EL AA C3012 VCEA0A1HW475M X 4 7 50V EL AA C3013 VCK...

Page 31: ...f No Part No Description Code R518 VRS CY1JF102JY X 1k 1 16W M Ox AA R521 VRS CY1JF101JY X 100 1 16W M Ox AA U R523 VRN RL3DBR68J X 0 68 2W M Film AB U R524 VRS RG3AB561J X 560 1W M Ox AB R601 VRS CY1JF101JY X 100 1 16W M Ox AA R603 VRD RA2BE472JY X 4 7k 1 8W Carbon AA U R604 VRS KA3NG472J X 4700 7W M Ox AD R605 VRD RM2HD331JY X 330 1 2W Carbon AA R606 VRD RM2HD331JY X 330 1 2W Carbon AA U R609 VR...

Page 32: ...ef No Part No Description Code R947 VRS CY1JF223JY X 22k 1 16W M Ox AA R948 VRS CY1JF101JY X 100 1 16W M Ox AA R949 VRS CY1JF223JY X 22k 1 16W M Ox AA R950 VRS CY1JF560JY X 56 1 16W M Ox AA R951 VRD RA2BE680JY X 68 1 8W Carbon AA R952 VRS CY1JF333JY X 33k 1 16W M Ox AA R953 VRS CY1JF220JY X 22 1 16W M Ox AA R954 VRS CY1JF221JY X 220 1 16W M Ox AA R955 VRS CY1JF221JY X 220 1 16W M Ox AA R957 VRS CY...

Page 33: ... X 10 1 8W Carbon AA R2603 VRS CY1JF000JY X 00 1 16W M Ox AA RESISTORS M Ox Metal Oxide M Film Metal Film Ref No Part No Description Code R2605 VRS CY1JF000JY X 00 1 16W M Ox AA R2606 VRS CY1JF000JY X 00 1 16W M Ox AA R3001 VRS CY1JF221JY X 220 1 16W M Ox AA R3002 VRS CY1JF221JY X 220 1 16W M Ox AA R3003 VRS CY1JF105JY X 1M 1 16W M Ox AA R3004 VRS CY1JF104JY X 100k 1 16W M Ox AA R3005 VRS CY1JF623...

Page 34: ... Code R863 VRC MA2HG152KY X 1 5k 1 2W Solid AB R864 VRC MA2HG152KY X 1 5k 1 2W Solid AB U R867 VRS SV2HC392J X 3 9k 1 2W M Ox AA U R868 VRS SV2HC682J X 6 8k 1 2W M Ox AA R869 VRD RA2BE103JY X 10k 1 8W Carbon AA R870 VRD RA2BE223JY X 22k 1 8W Carbon AA R871 VRD RA2BE472JY X 4 7k 1 8W Carbon AA R872 VRD RA2EE680JY X 68 1 4W Carbon AA R873 VRD RM2HD224JY X 220k 1 2W Carbon AA R874 VRD RM2HD104JY X 10...

Page 35: ...16W M Ox AA R1403 VRS CY1JF361JY X 360 1 16W M Ox AA R1415 VRS CY1JF391JY X 390 1 16W M Ox AA R1416 VRS CY1JF102JY X 1k 1 16W M Ox AA R1417 VRS CY1JF152JY X 1 5k 1 16W M Ox AA R1421 VRS CY1JF152FY X 1 5k 1 16W M Ox AA R1423 VRS CY1JF102FY X 1k 1 16W M Ox AA R1427 VRS CY1JF000JY X 00 1 16W M Ox AA R1428 VRD RA2BE332JY X 3 3k 1 8W Carbon AA R1429 VRS CY1JF000JY X 00 1 16W M Ox AA R1430 VRS CY1JF151J...

Page 36: ...PACKING OF THE SET FRONT S4 S3 X1 X2 S2 S1 REAR Use tape to fix the top side of packing case Use 12 staples to fix the bottom side of packing case 36 32SF56B ...

Page 37: ...al photocopying recording or otherwise without prior written permission of the publisher ALL RIGHTS RESERVED Design and Production Information Design base SEM Production SEMEX Modify SEMEX SHARP ELECTRONICA MEXICO S A DE C V Quality Reliability Control Center Blvd SHARP No 3510 Parque Industrial Rosarito Playas de Rosarito México B C 22710 QRC0000 U April 2006 J B 32SF56B ...

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