Table of Contents
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ELECTRICAL SPECIFICATION........................3
IMPORTANT SERVICE NOTES........................4
CONTROL & TERMINALS.................................5
ADJUSTMENTS PROCEDURES......................7
STEREO LED FLASHING CODES..................11 PARTS LISTING..............................................38
PRINTED WIRING BOARDS..........................12 PACKING OF THE SET & ACCESSORIES....46
SHARP CORPORATION
SERVICE MANUAL
PAL BG SYSTEM COLOUR TELEVISION
MODEL
70GS-62S
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
CHASSIS LAYOUT...........................................16
COMPONENT LOCATION TABLES................16
ICs ADITIONAL INFORMATION.....................21
SCHEMATIC DIAGRAM..................................31
1
70GS-62S
SESG70GS62S00
Issued: 30th May '01
GA-10
CHASSIS
DE / GG / IT
This document has been published to
be used for after sales service only.
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Table of Contents
Related Manuals for Sharp 70GS-62SDE
Summary of Contents for Sharp 70GS-62SDE
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Page 1: Table Of Contents
CONTROL & TERMINALS.........5 ICs ADITIONAL INFORMATION.....21 ADJUSTMENTS PROCEDURES......7 SCHEMATIC DIAGRAM........31 STEREO LED FLASHING CODES....11 PARTS LISTING..........38 PRINTED WIRING BOARDS......12 PACKING OF THE SET & ACCESSORIES..46 SHARP CORPORATION This document has been published to be used for after sales service only. - Page 2 70GS-62S SERVICE MANUAL UPDATE LOG SHEET Technical Report No. Application Cause / Solution Part No. Page No. Data /Serial No. Technical Bulletin 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. If you need more information, please refer to the Technical Report (Bulletin).
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Page 3: Electrical Specification
K-20 MPCD screen temperature should not exceed 15% of its original value. X=0.290 Y=0.300 Specifications are subject to change without prior notice. MODEL DESTINATION & DIFFERENCES: 70GS-62SDE: Germany, Austria. Particular Operation Manual. 70GS-62SGG: Greece. No Operation Manual from Factory. Greek Teletext (NVM: Page 00, Position 95, Value: 03 05). -
Page 4: Important Servicing Notes
70GS-62S 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-62S 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-62S 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-62S 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. Note that these adjustments may vary from one receiver to another. - Page 8 70GS-62S 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-62S 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-62S • 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. The effect of this adjustment is shown in figure 13.
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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-62S F7315N4. MOTHER UNIT PWB. Component side. S702 S703 S704 S705 OPC1 M1000 LP701 VAR1 C701 L701 D701 C737 D702 JF702 C726 C703 D704 C727 C706 C905 C704 C712 C904 T702 R906 J326 POR701 JF64 C798 D749 C901 C732 R738 C731 Q709 C526...
- Page 13 70GS-62S F7315N4. MOTHER UNIT PWB. Component side. QKITP7315BMN4 Q708 D1001 D1002 L302 (VS) L303 JF702 C389 IC304 C388 (AV) C915 C902 R337 (SP) C905 R904 C386 R359 C392 C372 C377 C3309 C362 C361 C376 L316 C353 C358 C351 C378 R355 IC302 C1031 J100...
- Page 14 70GS-62S F7315N4. MOTHER UNIT PWB. Copper side. K D724 R758 C380 Q708 J401 C391 Q706 JF52 L317 R338 R755 JF39 JF53 C405 D100 R339 R333 R332 C387 JF702 L302 R335 R331 L303 JF14 IC304 JF17 C915 C1043 R337 C1044 R330 R359 C912 C385...
- Page 15 70GS-62S F7315N4. MOTHER UNIT PWB. Copper side. M1000 R1045 R1044 JF21 R1032 IC1008 R1043 R765 R774 S702 S703 S705 S704 R1046 LP701 JF60 C1050 C1022 R1033 D701 C1019 D1001 C737 D702 C726 R770 C703 D704 C704 R712 C913 R708 R706 D904 C712 IC701...
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Page 16: Chassis Layout
70GS-62S F7315N4. CHASSIS LAYOUT. PTC UNIT (F7347N0) PWB & COMPONENT LOCATION TABLES. Component Side. Component Side. Copper Side. 5HI 1R <XP '* & ' F7347BMN0 C1701 -/ Q1701 JL23 -/ C1701 325 ... - Page 17 70GS-62S MOTHER UNIT (F7315N4) PWB COMPONENT LOCATION TABLES. Component Side. 5HI 1R <XP 5HI 1R <XP 5HI 1R <XP 5HI 1R <XP 5HI 1R <XP 5HI 1R <XP $9 & & ,& - ...
- Page 18 70GS-62S MOTHER UNIT (F7315N4) PWB COMPONENT LOCATION TABLES. Component Side Copper Side 5HI 1R <XP 5HI 1R <XP 5HI 1R <XP 5HI 1R <XP 5HI 1R <XP 5HI 1R <XP / 5 73& & &...
- Page 19 70GS-62S MOTHER UNIT (F7315N4) PWB COMPONENT LOCATION TABLES. Copper Side. 5HI 1R <XP 5HI 1R <XP 5HI 1R <XP 5HI 1R <XP 5HI 1R <XP 5HI 1R <XP & ' ' - -) ...
- Page 20 70GS-62S MOTHER UNIT (F7315N4) PWB COMPONENT LOCATION TABLES. Copper Side. 5HI 1R <XP 5HI 1R <XP 5HI 1R <XP 5HI 1R <XP 5HI 1R <XP 5 4 5 5 5 5 4 ...
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Page 21: Ics Aditional Information
70GS-62S ICs ADITIONAL INFORMATION: TDA9885 (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 70GS-62S ICs ADITIONAL INFORMATION: TDA9885 (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-62S ICs ADITIONAL INFORMATION: TDA9885 (IC201) BLOCK DIAGRAM...
- Page 24 70GS-62S ICs ADITIONAL INFORMATION: TDA9885 (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 CVBS...
- Page 25 70GS-62S ICs ADITIONAL INFORMATION: TDA7480 (IC301, IC302, IC501) 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...
- Page 26 70GS-62S ICs ADITIONAL INFORMATION: TDA7480 (IC301, IC302, IC501) = ±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.) Symbol Parameter Test Condition...
- Page 27 70GS-62S ICs ADITIONAL INFORMATION: MSP3401G (IC303) Loud- Loud- Sound IF1 Pre- speaker speaker processing modulator Sound Sound IF2 Subwoofer Processing Headphone Headphone Sound Processing Prescale SCART1 SCART2 SCART SCART1 SCART3 Input Prescale SCART Select Output SCART4 Select MONO SCART2 Block Diagram of the MSP 34x1G SC2_IN_L ASG2 SC2_IN_R...
- Page 28 70GS-62S ICs ADITIONAL INFORMATION: MSP3401G (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 AVSUP SUP3 −0.5...
- Page 29 70GS-62S ICs ADITIONAL INFORMATION: VCT3832 (IC1001) VCT 38xx Display RGBOUT Processor Video Panorama Video Comb 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 15:1 Mux 10-bit ADC RESQ...
- Page 30 70GS-62S ICs ADITIONAL INFORMATION: VCT3832 (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 72 71 70 69 68 67 66 65 VERTQ VERT...
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Page 31: Description Of Schematic Diagram
70GS-62S 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. 3. - Page 32 70GS-62S Red output Green output Blue output I Sense V St-by E/W Output V Switch V Control St-by Vp (Primary) Vertical Input E/W Correction V inner correction Vertical + input H Control...
- Page 33 70GS-62S 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-62S SCHEMATIC DIAGRAM OF MOTHER UNIT (K7315N4). Page 36 PROT MUTE PROT HOUT VPROT ALCLOCK...
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Page 35: Schematic Diagram
70GS-62S SCHEMATIC DIAGRAM OF MOTHER UNIT (K7315N4). Page 37 VPROT... - Page 36 70GS-62S SCHEMATIC DIAGRAM OF MOTHER UNIT (K7315N4). PROT HEADR HEADL MUTE FRONT SC4INL SC4INR STBY HEADR HEADL VOUT PROT...
- Page 37 70GS-62S SCHEMATIC DIAGRAM OF MOTHER UNIT (K7315N4) . SC2OUTL SC2OUTR SC1IN SC2IN VPROT SC1INR SC1OUTR SC1OUTL SC1INL VOUT ALCLOCK...
- Page 38 70GS-62S PARTS LISTING 5() 1R3$576 '(6&5,37,21 61 &2'( (; &2'( 4 966$.4 757 %& 60' 6 $$ REPLACEMENT PARTS 4 5+7;%0== 757 . 726+,%$ 6 $$ Replacement parts which have special safety characteristics are identi- 4 &+7;%09 757 6(7 5+7; 35()250 6 fied in this manual.
- Page 39 70GS-62S 5() 1R3$576 '(6&5,37,21 61 &2'( (; &2'( 5() 1R3$576 '(6&5,37,21 61 &2'( (; &2'( ' 5+(;%0== =(1(5 ',2'( 7=0&9 7). 60' 6 $$ ' 5+';%0== ',2'( 1 $&3$ 6 $% ' 5+(;%0== =(1(5 ',2'( 7=0&9 7). 60' 6 $$ ' 5+(;%0== =(1(5 ',2'( 7=0& 7).
- Page 40 70GS-62S 5() 1R3$576 '(6&5,37,21 61 &2'( (; &2'( 5() 1R3$576 '(6&5,37,21 61 &2'( (; &2'( & 9&&&79++- &(5$0 & 3) 9 60' 6 $$ & 5&)=%01- 32/ ),/0 & Q) 9 (&49 3$1$621,& 6 $$ & 9&($*$+:0 (/(&...
- Page 41 70GS-62S 5() 1R3$576 '(6&5,37,21 61 &2'( (; &2'( 5() 1R3$576 '(6&5,37,21 61 &2'( (; &2'( & 9&($*$&:0 (/(& & 8) 9 6 $$ & 9&&&79++- &(5$0 & 3) 9 60' 6 $$ & 5&(=%0== (/(& & 8) 9 6 $' &...
- Page 42 70GS-62S 5() 1R3$576 '(6&5,37,21 61 &2'( (; &2'( 5() 1R3$576 '(6&5,37,21 61 &2'( (; &2'( 5 95679-'- .2+0 : 60' 6 $$ 5 95674%'- 2; 5( 2+0 : 60' 6 $$ 5 95679-'- .2+0 : 60' 6 $$ 5 95679-'-...
- Page 43 70GS-62S 5() 1R3$576 '(6&5,37,21 61 &2'( (; &2'( 5() 1R3$576 '(6&5,37,21 61 &2'( (; &2'( 5 95679-' ) .2+0 : 60' 6 $$ 5 95679-'- 2+0 : 60' 6 $$ 5 95679-'- .2+0 : 60' 6 $$ 5 95679-') .2+0 : 60'...
- Page 44 70GS-62S 5() 1R3$576 '(6&5,37,21 61 &2'( (; &2'( 5() 1R3$576 '(6&5,37,21 61 &2'( (; &2'( - 95674%'- 2+0 : 60' 6 $$ - 95679-'- 2+0 : 60' 6 $$ - 95674%'- 2+0 : 60' 6 $$ - ...
- Page 45 70GS-62S 5() 1R3$576 '(6&5,37,21 61 &2'( (; &2'( 5() 1R3$576 '(6&5,37,21 61 &2'( (; &2'( ' 5+'; %0== ',2'( %<70 7). 6 $$ $& 5(6,67256 ' 5+';%0== ',2'( %<** 7). 60' 6 $$ $& 5 55;=%0== )86 5(6 5 7$3 : 6 $$ ' 5+';%0== ',2'( %<** 7).
- Page 46 70GS-62S 1.6 1.4 PACKING OF THE SET Pack-ad SPAKX4053BMZZ Wrapper SPAKP2006BMZZ FRONT SPAKC5448BMN2 Carton Box...
- Page 47 70GS-62S Batteries Remote Control UBATU0247AJZZ RRMCG1071BMSA Operation Manual Set 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.