Roadstar CTV-1010XKTL Service Manual Download Page 24

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ROADSTAR MANAGEMENT SA.

(INTERNATIONAL SERVICE DIVISION)

Via Passeggiata, 1 - BALERNA - SWITZERLAND

Tel. +4191-6975155 - Fax. +4191-6975151

ROADSTAR ITALIA S.P.A.

SERVICE DIVISION (DOMESTIC ITALY)

Viale Matteotti, 22 - CERNOBBIO (CO) -ITALY

Tel. +39031-342340 - Fax. +39031-3346291

Summary of Contents for CTV-1010XKTL

Page 1: ...Service Manual CTV 1010XKTL R CTV 1010XKTL Service Manual CTV 1010XKTL...

Page 2: ......

Page 3: ...hen CPT is replaced 1 Make the following the adjustments after setting up purity and convergence White Balance Vertical center Vertical size Horizontal size 4 2 Factory I Servi ce Mode 4 2 1 Procedure...

Page 4: ...ments 4 3 1 Generai Alignment Instructions 1 Usually a colar TV needs only slight to uch upadjustment upon installation Check the basic characteristics such as height horizontal and vertical sync and...

Page 5: ...faceplate of the picture tube and the sides and front of the receiver Slowly withdraw the coil to a distance of about 6 feet before turning power OFF If colar shading persists perform the following Co...

Page 6: ...controls to obtain the white horizontalline The lines may look like white if the cut off controls are adjusted properly Remocon Button NO 1 2 3 5 6 7 F ti RED GREEN BLUE RED GREEN BLUE unc on D D D C...

Page 7: ...enter Convergence Adjustment 1 Warm up the receiver far at least 30minutes 2 Adjust the two tabs of the 4 pole magnets Change the angle between them Superimpose the red and blue verticallines in the c...

Page 8: ...LE MAGNET ADJUST THEANGLE VERTICAL LlNES 4 M ROTATETWOTABS ATTHE SAMETIME PURITY HORIZONTAL LlNES MAGNET RED BLU RED GRN BGR R RED BLU RED GRN t R G B 4 PoleMagnets Movement 6 PoleMagnets Movement Inc...

Page 9: ...ips pattern with the center of the TV screen 5 Using Devices and Description 5 1 Main Signal processar STV 2246 8 5 1 1 Feature oIIC Bus Contrai oPIF circuit with Demodulation oSIF circuit with QSS St...

Page 10: ...put 16 PIFLC2 LC Input 17 Vcc2 Video LumaSupplyVolta e 8 18 CVBSIN1 InternaiVideo Input 19 GNO2 Video LumaGround 20 CVBSIN2 ExternalVideo Input 21 BS BlackStretchCapacitor 22 Y CVBSIN3 Y SVHS or CVBS3...

Page 11: ...Une Flyback Input and Super sandcastle Output 50 SLPF Scanning PLL Filter 51 SCL 12C Bus Clock Input 52 SDA IlC Bus Data Input 53 VccD Digital SUPPIyVoltage 5V 54 GND D Digital Ground 55 AUDIOOUT Main...

Page 12: ...55 ffi 5 u a m 2 a m r REXT LFB SSC GEXT BEXT SLPF FBEXT X1NAMP CHROUT CLPF XTAL1 BS XTAL2 XTAL3 CVBSOUT2 CVBSIN1 CVBSIN2 Y CVBSIN3 o FMOUT c o u CHR EXTAUDIOIN FMCAP INTCVBSOUT AUDIOOUT IFPLL v PIFLC...

Page 13: ...m_ m IO REXT LFB SSC GEXT BEXT SLPF FBEXT X1NAMP CHROUT CLPF BS XTALI XTAL2 CVBSOUT2 CVBSINI XTAL3iBTUN CVBSIN2 Y CVBSIN3 AM FMOUT SC CHR EXTAUDIOIN FMCAP INTCVBSOUT AUDIOOUT IFPLL v PIFLC2 PIFLCI SCL...

Page 14: ...ntrol PLL synchronous demodulator Bus controlled VCO far integrated tuning of t e ext rna LC resonator SA W filter switch contrai pin is available in the far 38 9 MHz VCO LC coli speclficatlon has to...

Page 15: ...ow 309 314 in 50 Hz 258 264 in 60 XTAL 1 the output load must be lower than 5k Q Hz Two phase locked loops Field frequency selection wind ows the first PLL locks the VCO on the video line 248 286 60 H...

Page 16: ...hen 4 3 is selected phase comparator and an internalloop filter capacitor The reference signal is the continuous Oversized blanking function is controlled by the carrier wave trom the chroma VCO 4 43...

Page 17: ...V and 3 5 V 2 5 V Typ When coring on sharpness is turned ON peaking is The cut off current is measured sequentially during not active on low amplitude signals below 10 IRE the three lines after the i...

Page 18: ...ction and a total action range of i 90 ACC done by peak detector on synchronous SECAM Decoder demodulation nf the burst F Il t t d k ll u y In egra e I ero F Il t t d k ll f t Fully integrated demodul...

Page 19: ...STAGE POWER AMPLIFIER FL YBACK GENERATOR INTERNAL REFERENCE VOL TAGE THERMAL PROTECTION 5 2 2 Pinning and Description 10 FLYBACK GENERATOR 9 Vs 8 INVERTING INPUT 7 BUFFER OUTPUT O 6 RAMPGENERATOR 5 GR...

Page 20: ...I 5 4 4 Block Diagram c 11 o z C cC WCC z j 2J c lI tUO o li C g C gUJ oD 8 lI C D I D lI Q 22 2 0 5 cu E CUc o ti D C c O lI z CU C I Q E J SQ C d C cf N U UJ I IANUAL...

Page 21: ...802 0816 NO I Main Board I I Check0801 0801 I NO Check L801 0802 0803 CHECK 0001 Pin 34 Check R516 R116 Check 0081 0082 Check 0501 Check 0404 0402 7 2 No Raster HeaterVoltage is OK but No Raster Incre...

Page 22: ...7 3NoSound Picture OK Do the volume contrai in max before check this routine Check the speaker Check 0601 Check 0602 0603 VES I Check0601j...

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Page 24: ...ICE DIVISION Via Passeggiata 1 BALERNA SWITZERLAND Tel 4191 6975155 Fax 4191 6975151 e mail aftersal roadstar com ROADSTAR ITALIA S P A SERVICE DIVISION DOMESTIC ITALY Viale Matteotti 22 CERNOBBIO CO...