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ELECTRICAL SPECIFICATION.......................3
IMPORTANT SERVICE NOTES.......................4
CONTROL & TERMINALS................................5
ADJUSTMENTS PROCEDURES.....................7
STEREO LED FLASHING CODES.................11
PRINTED WIRING BOARDS..........................12
SHARP CORPORATION
SERVICE MANUAL
PAL SYSTEM COLOUR TELEVISION
MODEL
70GS-61S
In the interests of user safety (required by safety
regulations in some countries) the set should restored
to its original condition and only parts identical to
those specified should be used.
CONTENTS
COMPONENT LOCATION TABLES................16
CHASSIS LAYOUT..........................................20
ICs ADITIONAL INFORMATION.....................21
SCHEMATIC DIAGRAM..................................31
PARTS LISTING..............................................38
PACKING OF THE SET & ACCESSORIES....46
1
70GS-61S
SESG70GS61S00
Issued: 27th March 2001
GA-10
CHASSIS
DE/GG/NL/IT/ITS/CH
This document has been published to
be used for after sales service only.
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Summary of Contents for Sharp 70GS-61S
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Page 1: Table Of Contents
70GS-61S SERVICE MANUAL SESG70GS61S00 Issued: 27th March 2001 GA-10 CHASSIS PAL SYSTEM COLOUR TELEVISION MODEL 70GS-61S DE/GG/NL/IT/ITS/CH In the interests of user safety (required by safety regulations in some countries) the set should restored to its original condition and only parts identical to those specified should be used. - Page 2 70GS-61S SERVICE MANUAL UPDATE LOG SHEET Technical Report No. Application Cause / Solution Part No. Page No. Technical Bulletin No. Data /Serial No. Use this page to keep any special servicing information as Technical Report (Bulletin), Technical Information, etc. If only part number changes are required, just change part number directly the part number in the Parts Listing Section.
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Page 3: Electrical Specification
70GS-61S ELECTRICAL SPECIFICATIONS •Power Input ....220V-240 Volts AC 50Hz •Convergence Static (Centre) .. between any two colours Dynamic ....after static equals zero •Power Consumption •Focus ....High Bi-Potential Electrostatic Normal Operation ........87W •Sweep Deflection ....... Magnetic Stand-by Operation ........3W •Picture Intermediate frequency .. -
Page 4: Important Servicing Notes
70GS-61S IMPORTANT SERVICING NOTES Only qualified service personnel are allowed to carry out maintenance and repair of this receiver. SERVICING OF HIGH VOLTAGE SYSTEM AND CRT It is important that the static charge is removed from the high voltage system when carrying out work on the receiver. -
Page 5: I/Ii/I+Ii
70GS-61S REMOTE CONTROL 1. Stand-by ON/OFF switch (TV) Video 2. Power ON / OFF switch (VCR) 3. Digit buttons 0 ∼ 9 4. Flashback button TV/VIDEO Teletext 5. Colour button (green) 6. Colour button (red) 7. Volume Down/Cursor control Left 8. -
Page 6: Control & Terminals
70GS-61S CONTROLS & TERMINALS FRONT TV 1. Main Power On/Off Switch 2. Power Indicator / I / II 3. Program Selector (UP/DOWN) 4. Volume Buttons (UP/DOWN) 5. Remote Control Sensor 6. Sound Indicator 7. Remote Control Indicator 8. DOOR Behind the door 9. -
Page 7: Adjustments Procedures
70GS-61S ADJUSTMENT PROCEDURES All adjustments to this chassis, except for focus, are carried out in the service mode. • • • • • SERVICE MODE The service mode is provided to enable the engineer to correctly set up the receiver to the CRT fitted in the set. - Page 8 70GS-61S The following geometry adjustments can be carried out. Detailed instructions on how to execute these are given on the following pages Horizontal Vertical • Horizontal Shift • Vertical Amplitude • E-W Width • S Correction • Pin Phase • Vertical Shift •...
- Page 9 70GS-61S Corner Symmetry Adjust the Corner Symmetry so that the picture is centred. The effect of this adjustment is shown in figure 7. Note: This adjustment affects to upper and lower sides. • When the volume up button is pressed, side pincushion changes from pincushion to barrel shape.
- Page 10 70GS-61S • When the volume down button is pressed the top and bottom scanning decreases and the centre scanning increases. • Press the stand-by button on the remote control to store. Vertical Shift Adjust the Vertical Shift so that the picture is centred.
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Page 11: Stereo Led Flashing Codes
DO NOT change any NVM data, unless you have been ad- 1. Unable to read or write into NVM: 66% ON, 33% OFF vised to do so by a Sharp representative. If data is incor- twice and OFF for a second. - Page 12 70GS-61S F7315N3. MOTHER UNIT PWB. Component side. S702 S703 S704 S705 M1000 OPC1 LP701 C701 L701 D701 C737 D702 JF702 C726 C703 D704 C727 C706 C704 C712 VAR1 C904 T702 R906 J326 POR701 C798 D749 C901 C732 F701 R738 C731...
- Page 13 70GS-61S F7315N3. MOTHER UNIT PWB. Component side. QKITP7315BMN3 Q708 D1001 D1002 L302 (VS) L303 F702 C389 IC304 C388 (AV) C915 C902 R337 (SP) C905 R904 C386 R359 C392 C372 C377 C3309 C362 C361 C376 L316 C353 C358 (K). C351 C378...
- Page 14 70GS-61S F7315N3. MOTHER UNIT PWB. Copper side. D724 R758 C380 Q708 J401 C391 Q706 JF52 L317 R338 R755 JF39 JF53 C405 D100 R339 R333 R332 JF702 C387 L302 R335 R331 L303 JF14 IC304 JF17 C915 C1043 R337 C1044 R359 R330...
- Page 15 70GS-61S F7315N3. MOTHER UNIT PWB. Copper side. M1000 R1045 R1044 JF21 R1032 R1043 IC1008 R765 R774 S702 S703 S705 R1046 S704 LP701 JF60 C1050 C1022 J320 R1033 D701 C1019 D1001 C737 D702 C726 R770 C703 D704 C704 R712 C913 R708...
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Page 16: Component Location Tables
70GS-61S MOTHER UNIT (F7315N3) PWB COMPONENT LOCATION TABLES. Component Side. Ref No Ref No Ref No Ref No Ref No Ref No (AV) 190754 219710 C386 236982 212090 C803 173228 110490 IC202 221488 35306 J171 155194 98044 J244 178562 54610 (AV). - Page 17 70GS-61S MOTHER UNIT (F7315N3) PWB COMPONENT LOCATION TABLES. Component Side Copper Side Ref No Ref No Ref No Ref No Ref No Ref No 136398 156972 L316 218440 198120 R652 125222 55168 TPC39 165862 102870 C1002 230378 142494 C329 140716...
- Page 18 70GS-61S MOTHER UNIT (F7315N3) PWB COMPONENT LOCATION TABLES. Copper Side. Ref No Ref No Ref No Ref No Ref No Ref No C803 173228 110490 IC202 221488 35306 J171 155194 98044 J244 178562 54610 136398 156972 L316 218440 198120 C805...
- Page 19 70GS-61S MOTHER UNIT (F7315N3) PWB COMPONENT LOCATION TABLES. Copper Side. Ref No Ref No Ref No Ref No Ref No R1002 233934 128016 R1002 233934 128016 R419 173990 14986 R700 30734 93218 R780 69596 107315 R1003 192278 158750 R1003 192278...
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Page 20: Chassis Layout
70GS-61S F7315N3. CHASSIS LAYOUT. -
Page 21: Ics Aditional Information
70GS-61S ICs ADITIONAL INFORMATION: TDA9886 (IC201) QUICK REFERENCE DATA SYMBOL PARAMETER CONDITIONS MIN. TYP. MAX. UNIT supply voltage note 1 4.75 5.00 5.50 supply current −1 dB video at output − µV VIF input signal voltage sensitivity i(VIF)(rms) (RMS value) −... -
Page 22: Video
70GS-61S ICs ADITIONAL INFORMATION: TDA9886 (IC201) SYMBOL PARAMETER CONDITIONS MIN. TYP. MAX. UNIT −3 dB audio frequency bandwidth for − without de-emphasis; AF(−3dB) dependent on loop filter at pin 4 − weighted signal-to-noise ratio of 27 kHz FM deviation; W(audio) 50 µs de-emphasis;... - Page 23 70GS-61S ICs ADITIONAL INFORMATION: TDA9886 (IC201) BLOCK DIAGRAM...
- Page 24 70GS-61S ICs ADITIONAL INFORMATION: TDA9886 (IC201) PINNING SYMBOL DESCRIPTION SYMBOL DESCRIPTION VIF1 VIF differential input 1 TAGC tuner AGC output VIF2 VIF differential input 2 4 MHz crystal or reference input output 1 (open-collector) VAGC VIF-AGC for capacitor; note 1 FMPLL FM-PLL for loop filter...
- Page 25 70GS-61S ICs ADITIONAL INFORMATION: TDA7480 (IC301,IC302) ABSOLUTE MAXIMUM RATINGS Symbol Parameter Value Unit ±20 DC Supply Voltage Storage and Junction Temperature –40 to 150 °C Maximum Voltage Across VFREQ (Pin 9) FREQ Operating Temperature Range -20 to 70 °C ±1.8 Maximum ESD on Pins Rth with "on board"...
- Page 26 70GS-61S ICs ADITIONAL INFORMATION: TDA7480 (IC301,IC302) = ±14V; R ELECTRICAL CHARACTERISTICS (Refer to the test circuit, V = 8Ω; R = 50Ω; = 12KΩ; Demod.. filter L = 60µH, C = 470nF; f = 1KHz; T = 25°C unless otherwise specified.)
- Page 27 70GS-61S ICs ADITIONAL INFORMATION: MSP3410G (IC303) Loud- Loud- Sound IF1 Pre- speaker speaker processing modulator Sound Sound IF2 Subwoofer Processing Headphone Headphone Sound Processing Prescale SCART1 SCART2 SCART SCART1 Input SCART3 Prescale SCART Select Output SCART4 Select MONO SCART2 Block Diagram of the MSP 34x1G...
- Page 28 70GS-61S ICs ADITIONAL INFORMATION: MSP3410G (IC303) Absolute Maximum Ratings Symbol Parameter Pin Name Min. Max. Unit − °C Ambient Operating Temperature − −40 °C Storage Temperature −0.3 First Supply Voltage AHVSUP SUP1 −0.3 Second Supply Voltage DVSUP SUP2 −0.3 Third Supply Voltage...
- Page 29 70GS-61S ICs ADITIONAL INFORMATION: VCT3811 (IC1001) VCT 38xx Display RGBOUT Processor Video Comb Panorama Video Color Front-end Scaler Back-end Filter Decoder RGBIN Pict.Improv. VOUT VSUPAB GNDAB AOUT MSync Audio Color, Prio VSync C Master 8-bit PWM 24 kB ROM 14-bit PWM...
- Page 30 70GS-61S ICs ADITIONAL INFORMATION: VCT3811 (IC1001) VSUPP3 GNDD GNDP3 VSUPD HOUT CLK20 TEST FBLIN VPROT SAFETY VBCLK HFLB 96 95 94 93 92 91 90 89 88 87 86 85 84 83 82 81 80 79 78 77 76 75 74 73...
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Page 31: Description Of Schematic Diagram
70GS-61S DESCRIPTION OF SCHEMATIC DIAGRAM NOTE: SAFETY NOTE: 1. The unit of resistance «ohm»is omitted (K=1000 ohms. M= Megaohm). 1. DISCONNECT THE AC PLUG FROM THE AC 2. All resistors are 1/8 watt. unless otherwise noted. OUTLET BEFORE REPLACING PARTS. - Page 32 70GS-61S Red output Green output Blue output E/W Output I Sense V St-by V Switch V Control St-by Vp (Primary) Vertical Input E/W Correction V inner correction Vertical + input H Control...
- Page 33 70GS-61S Vb (Horizontal) Vc (Horizontal) V in Headphone L V in Headphone R V in Speaker L V out Speaker L V out Speaker R V in Speker R X1002 V Flyback Vertical Vertical output Vertical input IF Video output...
- Page 34 70GS-61S SCHEMATIC DIAGRAM OF MOTHER UNIT (K7315). Page 36 PROT VOUT MUTE PROT HOUT VPROT ALCLOCK...
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Page 35: Schematic Diagram
70GS-61S SCHEMATIC DIAGRAM OF MOTHER UNIT (K7315). Page 37 V OUT V IN VPROT... - Page 36 70GS-61S SCHEMATIC DIAGRAM OF MOTHER UNIT (K7315). PROT HEADR HEADL MUTE STBY HEADR HEADL PROT VOUT...
- Page 37 70GS-61S SCHEMATIC DIAGRAM OF MOTHER UNIT (K7315). SC2OUTL R OUT SC2OUTR R IN L OUT L IN AV LINK SC1IN SC2IN V OUT V IN VPROT R OUT R IN SC1INR SC1OUTR L OUT SC1OUTL L IN SC1INL AV LINK...
- Page 38 70GS-61S PART LIST 5() 1R 3$576 '(6&5,37,21 &2'( 4 5+7;%0== 757 . 726+,%$ 6 $' REPLACEMENT PARTS 4 &+7;%09 757 5+7; 35()250 6 Replacement parts which have special safety characteristics are identi- 4 &+7;%09 757 5+7; 35()250 6 fied in this manual.
- Page 39 70GS-61S 5() 1R 3$576 '(6&5,37,21 &2'( 5() 1R 3$576 '(6&5,37,21 &2'( ; 5&56% %0== &5<67$/ +0= 6 $+ ' 5+';%0== ',2'( // 7). 60' 6 $$ ' 5+(;%0== =(1(5 ',2'( 7=0& 7). 60' 6 $$ &2,/6 ' 5+';&(==...
- Page 40 70GS-61S 5() 1R 3$576 '(6&5,37,21 &2'( 5() 1R 3$576 '(6&5,37,21 &2'( & 9&.<79+)= &(5$0 & 1) 9 60' 6 $$ & 9&.<79+)= &(5$0 & 1) 9 60' 6 $$ & 5&)=%01- 32/ ),/0 & Q) 9 (&49 3$1$6 $% &...
- Page 41 70GS-61S 5() 1R 3$576 '(6&5,37,21 &2'( 5() 1R 3$576 '(6&5,37,21 &2'( & 9&.<3$+%. &(5$0 & 3) 9 6 $$ 5 95674%'- 2; 5( .2+0 : 60' 6 $$ & 9&($*$(:0 (/(& & 8) 6 $$...
- Page 42 70GS-61S 5() 1R 3$576 '(6&5,37,21 &2'( 5() 1R 3$576 '(6&5,37,21 &2'( 5 95679-'- 2+0 : 60' 6 $$ 5 95679-'- .2+0 : 60' 6 $$ 5 95679-'- 2+0 : 60'...
- Page 43 70GS-61S 5() 1R 3$576 '(6&5,37,21 &2'( 5() 1R 3$576 '(6&5,37,21 &2'( 5 95674%'- 2; 5( .2+0 : 60' 6 $$ 43/*1&(== 3/8* 6 $% 5 95674%'- 2; 5( .2+0 : 60' 6 $$ 63 43/*1&(== 3/8* 3,1...
- Page 44 70GS-61S 5() 1R 3$576 '(6&5,37,21 &2'( 5() 1R 3$576 '(6&5,37,21 &2'( -) 95679-'- 2+0 : 60' 6 $$ - 95679-'- 2+0 : 60' 6 $$ - 95679-'- 2+0 : 60'...
- Page 45 70GS-61S 5() 1R 3$576 '(6&5,37,21 &2' 5 95679-'- .2+0 : 60' 5 95679-' - 2+0 : 60' 5 95679-'- 2+0 : 60' 5 95679-' - 2+0 : 60'...
- Page 46 70GS-61S PACKING OF THE SET Pack-ad SPAKX4055BMZZ Wrapper SPAKP2006BMZZ FRONT SPAKC5482BMN2 Carton Box Remote Control Batteries RRMCG1071BMSA UBATU0247AJZZ Operation Manual Set...
- Page 47 70GS-61S Q601, Q602 REPLACEMENT NOTES: When Q601 or Q602 requires to be replaced, please consider the following steps in order to avoid damaging any part. 1. Gently unclamp clip from side to side using a screwdriver to remove, as shown on Fig.1 2.
- Page 48 SHARP ELECTRONICA ESPAÑA S.A. PRINTED BY: TV Division Think Ecology, please use Engineering Dept.