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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.

Page

»

 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

»

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

»

 DESCRIPTION OF SCHEMATIC DIAGRAM

S

 & WAVEFORMS ............

.

...........................................14

»

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

»

 PRINTED WIRING BOARD ASSEMBLIES ........................................................................................ 22

»

 PARTS LIST ........................................................................................................................................ 27

»

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

6

CONTENTS

SPEAKER

SIZE .......................................................... 9 x 5 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

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

POWER RATING ................................................................... 1

30

W

PICTURE SIZE .......................................... 2,187 cm

(339sq 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)

 (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

27SC26B

COLOR TELEVISION

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

Chassis No. 

GB-3D(1W)

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

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

27SC26

B

Содержание 27SC26B

Страница 1: ...m 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 POWER INPUT 120V AC 60 Hz POWER RATING 130W PICTURE SIZE 2 187 cm2 339sq inch CONVERGENCE Magnetic SWEEP DEFLECTION Magnetic FOCUS Hi Bi Potential Electrostatic INTERMEDIATE FREQUENCIES Picture IF Carrier Frequenc...

Страница 2: ...age 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 n...

Страница 3: ...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 parts and a known earth ground such as electrical ...

Страница 4: ...utton CHANNEL UP DOWN Selects next higher channel Selects next lower channel Moves the mark on the MENU screens Infrared Transmitter Window DISPLAY Press Displays receiving channel for 4 seconds Press again Removes display Temporarily displays receiving channel when in Closed Caption mode MENU Press Accesses MAIN MENU Press again Exits MAIN MENU Note The above shaded buttons on the Remote Control ...

Страница 5: ...he 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 tube ...

Страница 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...

Страница 7: ... 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 CD MATRIX 0 3 00h 03h 02 02h 02 V62 B Y AT...

Страница 8: ...8 08h D06 V S CORRECTION 0 15 00h 0Fh 12 0Ch 0C 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 06 D12 H EHT 0 7 00h 07h 06 06h 06 D13 EW CORNER 0 31 00h 1Fh 08 08h 08 D14 EW CORNER BOTTOM 19 81 13h 51h 50 32h 32 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 01h...

Страница 9: ...e 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 RF Input 4 For component input the data value of V49 and V50 is adjusted to follow the da...

Страница 10: ...t select data bus D05 and adjust to get the proper vertical linearity SCREEN FORMAT 16 9 5 Input data of D22 to mines 38 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 on D0...

Страница 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 widebando SIGNAL 2 Adj for spectral Check the output of the speaker at the maximum vo...

Страница 12: ...CHASSIS LAYOUT 27SC26B 12 ...

Страница 13: ...BLOCK DIAGRAM 27SC26B 13 ...

Страница 14: ...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 measured from point indicated to chassis ground WAVEFORMS å AND SHADED COMPONENTS SAFETY RELATED PARTS ç MARK X RAY RELA...

Страница 15: ...6 5 4 3 2 1 A B C D E F G H SCHEMATIC DIAGRAM CRT Unit 15 27SC26B ...

Страница 16: ...A B C D E F G H 10 9 8 7 6 5 4 3 2 1 SCHEMATIC DIAGRAM MAIN 1 Unit 16 27SC26B ...

Страница 17: ...17 16 19 18 15 14 13 12 11 10 17 27SC26B ...

Страница 18: ...A B C D E F G H 10 9 8 7 6 5 4 3 2 1 SCHEMATIC DIAGRAM MAIN 1 Unit 18 27SC26B ...

Страница 19: ...17 16 19 18 15 14 13 12 11 10 19 27SC26B ...

Страница 20: ...A B C D E F G H 10 9 8 7 6 5 4 3 2 1 SCHEMATIC DIAGRAM MAIN 1 Unit 20 27SC26B ...

Страница 21: ...17 16 19 18 15 14 13 12 11 10 21 27SC26B ...

Страница 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 27SC26B 22 ...

Страница 23: ...17 16 19 18 15 14 13 12 11 10 27SC26B 23 ...

Страница 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 27SC26B 24 ...

Страница 25: ...17 16 19 18 15 14 13 12 11 10 27SC26B 25 ...

Страница 26: ...8 7 10 9 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 27SC26B 26 ...

Страница 27: ...RDA1SZ 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 AF IC2001 RH IXB644WJQ1Q X I C BA IC2040 VHIKIA7045A 1 X KIA7045AP AD IC2101 VHIBR24L16F 1Y X BR24L16F AE IC3001 VHICXA2194Q 1Y X CXA2194Q AS IC3002 VHIBA15218F2...

Страница 28: ... No Part No Description Code CF302 RFILC0449CEZZ X Filter AC CF401 RFILC0446CEZZ X Filter AC CF2040 RCRM 0003CEZZ X Ceramic Vibrator AD L201 VP XF1R2K0000Y X Peaking 1 2mH AA L203 VP XF100K0000Y X Peaking 10mH AA L204 VP XF100K0000Y X Peaking 10mH AA L231 VP XF680K0000Y X Peaking 68mH AA L301 VP XF8R2K0000Y X Peaking 8 2mH AA L401 VP XF100K0000Y X Peaking 10mH AA L672 RCILZ0102MEZZ X Coil AE L701 ...

Страница 29: ...ly Metalized Polypro Film Ref No Part No Description Code C744 VCKYPA2HB471K X 470p 500V Ceramic AA C745 VCKYPA2HB102K X 1000p 500V Ceramic AA C746 VCKYPA2HB102K X 1000p 500V Ceramic AA C747 VCEA0A1HW475M X 4 7 50V EL AA C750 VCKYCY1HF103ZY X 0 01 50V Ceramic AA C753 RC KZ0036CEZZ X 330p 2kV Ceramic AC C754 VCKYPA2HB472K X 4700p 500V Ceramic AB C755 VCEA0A1EW476M X 47 25V EL AA C758 VCEA0A1HW475M ...

Страница 30: ...43 VCEA0A1CW106M X 10 16V EL AA RESISTORS M Ox Metal Oxide M Film Metal Film Ref No Part No Description Code RJ7 VRS CY1JF000JY X 00 1 16W M Ox AA RJ8 VRS CY1JF000JY X 00 1 16W M Ox AA RJ11 VRS CY1JF000JY X 00 1 16W M Ox AA RJ12 VRS CY1JF000JY X 00 1 16W M Ox AA RJ13 VRS CY1JF000JY X 00 1 16W M Ox AA RJ14 VRS CY1JF000JY X 00 1 16W M Ox AA RJ15 VRS CY1JF000JY X 00 1 16W M Ox AA RJ16 VRS CY1JF000JY ...

Страница 31: ...bon AA Ref No Part No Description Code R713 VRS RG2HC152J X 1 5k 1 2W M Ox AB R714 VRS CY1JF332JY X 3 3k 1 16W M Ox AA R715 VRN RL2HCR56J X 0 56 1 2W M Film AB R716 VRD RM2HD100JY X 10 1 2W Carbon AA R720 VRD RA2BE473JY X 47k 1 8W Carbon AA R721 VRD RM2HD332JY X 3 3k 1 2W Carbon AA R724 VRD RM2HD101JY X 100 1 2W Carbon AA R725 VRD RM2HD222JY X 2 2k 1 2W Carbon AA R726 VRD RM2HD222JY X 2 2k 1 2W Ca...

Страница 32: ...cription Code R1125 VRS CY1JF101JY X 100 1 16W M Ox AA R1126 VRS CY1JF101JY X 100 1 16W M Ox AA R1128 VRS CY1JF101JY X 100 1 16W M Ox AA R1130 VRN RL3DB1R0J X 1 2W M Film AB R1131 VRS CY1JF101JY X 100 1 16W M Ox AA R1132 VRS CY1JF101JY X 100 1 16W M Ox AA R1136 VRS CY1JF104JY X 100k 1 16W M Ox AA R1137 VRS CY1JF823JY X 82k 1 16W M Ox AA R1140 VRS CY1JF750JY X 75 1 16W M Ox AA R1141 VRS CY1JF750JY ...

Страница 33: ...SEZZ X AV In Out Terminal AH P361 QPLGN0461CEZZA X plug 4pin AB P402 QPLGN0661CEZZA X plug 6pin AB P605 QPLGN0160FJZZ X plug 5pin AC RESISTORS M Ox Metal Oxide M Film Metal Film SWITCHES FERRITE BEAD MISCELLANEOUS PARTS PWB B DUNTKB568WEV0 CRT UNIT TRANSISTORS DIODES COILS CAPACITORS EL Electrolytic M Poly Metalized Polypro Film RESISTORS M Ox Metal Oxide M Film Metal Film Ref No Part No Descripti...

Страница 34: ...X Peaking 10mH AA L1403 VP XF100K0000Y X Peaking 10mH AA L1404 VP XF220K0000Y X Peaking 22mH AA L1405 VP XF220K0000Y X Peaking 22mH AA L1408 VP XF100K0000Y X Peaking 10mH AA C1401 VCKYCY1HB103KY X 0 01 50V Ceramic AA C1402 VCEA0A1AW227M X 220 10V EL AB C1403 VCCCCY1HH330JY X 33p 50V Ceramic AA C1404 VCCCCY1HH181JY X 180p 50V Ceramic AA C1405 VCKYCY1HB103KY X 0 01 50V Ceramic AA C1406 VCKYCY1HB103K...

Страница 35: ... C430WJZZ X Operation Manual AF TGAN A216WJN1 X Guarantee Card AC CABINET PARTS CABINET PARTS LOCATION NOT REPLACEMENT ITEM Ref No Part No Description Code SPAKCC630WJZZ X Packing Case AX SPAKP0109GJZZ X Wrapping Sheet AF SPAKX0125GJZZ X Packing Foam AS SSAKA0101GJZZ X Plastic Bag AC 1 CCABAB399WEH0 X Front Cabinet Assembly BK 1 1 Not Available Front Cabinet 1 2 HBDGB1009MESB X BADGE SHARP PLASTIC...

Страница 36: ...NG OF THE SET FRONT Packing Foam Packing Case REAR Use tape to fix the top side of packing case Use 12 staples to fix the bottom side of packing case 27SC26B Polyethylene Bag Polyethylene Mat ACCESSORIES 36 ...

Страница 37: ...27SC26B 37 ...

Страница 38: ...echanical 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 QRC0029 U January 2006 J B ...

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