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Gateway CG572E, Service Manual

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Gateway CG572E Service Manual Download Page 21

- 21 -

6. NO VERTICAL DEFLECTION

NO V-DEFLECTION

(ONE HORIZONTAL LINE)

CHECK

IC601 PIN 3

(15V)?

CHECK 

IC601 PIN 4 

(-12V)?

CHECK

IC701 PIN 23?

TROUBLE IN 
D602 15V LINE

TROUBLE IN
-12V LINE
D953, C605, C606, C962

TROUBLE IN
IC701

TROUBLE IN
IC601, V-CIRCUIT

NO

NO

YES

YES

YES

NO

3V

Summary of Contents for CG572E

Page 1: ...COLOR MONITOR SERVICE MANUAL CAUTION BEFORE SERVICING THE UNIT READ THE SAFETY PRECAUTIONS IN THIS MANUAL CHASSIS NO CA 85 MODEL CG572E EV500 ID LABEL EV500B NEW MODEL Issue Date AUGUST 2000 ...

Page 2: ...5 mm 11 22 x 8 46 Preset Image Size 270 x 200 mm 10 63 x 7 87 4 2 Display Color Full Colors 4 3 Display Resolution 1280 x 1024 60Hz Non Interlace 4 4 Video Bandwidth 110 MHz 5 ENVIRONMENT 5 1 Operating Temperature 5 C 40 C 41 F 104 F Ambient 5 2 Relative Humidity 5 90 Non condensing 5 3 Altitude 10 000 ft 6 DIMENSIONS with TILT SWIVEL Width 371 5 mm 14 62 inch Depth 401 5 mm 15 80 inch Height 425 ...

Page 3: ...gn Soldering must be inspected for the cold solder joints frayed leads damaged insulation solder splashes or the sharp points Be sure to remove all foreign materials IMPLOSION PROTECTION All used display tubes are equipped with an integral implosion protection system but care should be taken to avoid damage and scratching during installation Use only same type display tubes X RADIATION The only po...

Page 4: ... 0 607 800 x 600 60Hz Yes MODE 5 46 875 21 333 16 162 5 172 0 323 1 616 3 232 75 000 13 333 12 800 0 533 0 021 0 064 0 448 800 x 600 75Hz Yes MODE 6 48 363 20 677 15 754 4 923 0 369 2 092 2 462 60 004 16 666 15 880 0 786 0 062 0 124 0 600 1024 x 768 60Hz Yes MODE 7 60 023 16 660 13 003 3 657 0 203 1 219 2 235 75 029 13 328 12 795 0 533 0 017 0 050 0 466 1024 x 768 75Hz Yes MODE 8 63 981 15 630 11 ...

Page 5: ... monitor ON and OFF 2 Power DPMS Indicator This indicator lights up green when the monitor operates normally in DPMS Energy Saving mode stand by suspend or off mode its color changes to amber 3 OSD Select Adjustment Use this knob for selecting highlighting an OSD icon and adjusting level of the selected menu Front Control Panel 3 OSD Select Adjustment 1 Power ON OFF Button 2 Power DPMS Indicator ...

Page 6: ...or Mode Recall To recall factory preset mode R Advanced Option There are five kinds of options MORE Color Select To select color temperature or set color level 9300K 6550K USER Exit To make the OSD disappear on the screen Language Select To choose one of the five languages for the OSD menu EXIT Information There is information of video modes preset and user modes USER OSD OSD Manager To adjust hor...

Page 7: ...CONTROL LOCATIONS 7 MAIN FBT CONTROL 1 2 NO 1 Ref No SW201 NO 2 Ref No VR201 Control Function POWER BUTTON Control Function OSD SELECT ADJUSTMENT ...

Page 8: ...WIRING DIAGRAM 8 P201 P401 P501 W1 W3 P301 P302 P702 P402 P902 S S CDT EARTH P1 Signal Cable AC Socket FBT ...

Page 9: ... P701 P2 Tilt coil Anode Cap P902 3 TOTAL CHASSIS ASSEMBLY REMOVAL 1 Remove connector a from the DY Assembly screw 2 Disconnect P2 CDT EATH and four pins b from the Video PCB 3 Carefully separate the CDT Board Assembly from the CDT neck 4 Discharge the remaining static electricity by shorting between the Anode Cap and the CDT ground 5 Disconnect the Anode Cap from the CDT 6 Disconnect P902 Degauss...

Page 10: ...CB Assembly from the Front Cabinet 5 VIDEO PCB ASSEMBLY REMOVAL 1 Disconnect P301 P302 P1 from the Video PCB 2 Remove three screws a 3 Remove two screws b 3 Remove the Video PCB Assembly from the Main total Ass y a a a b a 6 BOTTOM BRACKET REMOVAL 1 Remove eight screws a 2 Remove the Bottom Bracket a ...

Page 11: ...DA8172 H OUT Q706 H Linearity Correction Screen Control Circuit DC DC Converter X RAY Protection Circuit FBT T701 Auto Beam Limit Vertical Blanking Brightness Control 120V 40V 600V 15V D D Feed Back 15V MICOM IC401 SCL SDA H V Sync PWM Control 12V 6 3V 15V 105V 15V 50V DY CDT Heater 6 3V I 2 C I 2 C I 2 C H V Sync G1 Screen Focus H V R G B Drive Contrast Cut Off H DRV B DRV B 15V TILT COIL DEGAUSS...

Page 12: ...mode and offers the controlled data H size H position V size etc 4 The controlled data of each mode is stored in itself 5 User can adjust screen condition by each OSD function The data of the adjusted condition is stored in EEPROM IC402 6 Horizontal and Vertical Oscillation This circuit generates the horizontal pulse and the vertical pulse by taking the H and V sync signal This circuit consists of...

Page 13: ... signal from 0 0 7V to 0 4V It is operated by taking the clamp R G B drive and contrast signal from the Micom IC401 16 Video Output Amp Circuit This circuit amplifies the video signal which comes from the video pre amp circuit and amplified it to applied the CRT cathode ...

Page 14: ...as arrow keys to be the best condition 9 DIST ADJ BALANCE command 10 Adjust parallelogram as arrow keys to be the best condition 11 DIST ADJ FOS ADJ command 12 Adjust V SIZE as arrow keys to 200 1mm 13 Adjust V POSITION as arrow keys to be the best condition 14 Adjust H SIZE as arrow keys to 270 1mm 15 Adjust H POSITION as arrow keys to be the best condition 16 Adjust S PCC Side Pincushion as arro...

Page 15: ...on 2 Display H character in full screen at Mode 7 3 Adjust Focus control on the FBT that focus should be the best condition 220 Monitor to be adjusted Video Signal Generator IBM Compatible PC Parallel Port Power inlet required Power LED ST Switch Power Select Switch 110V 220V Control Line N o t u s e d R S 2 3 2 C P A R A L L E L V S Y N C P O W E R S T VGS MONITOR E E V Sync On Off Switch Switch ...

Page 16: ...E F901 TROUBLE IN IC901 TROUBLE IN D941 D951 D961 D971 D953 TROUBLE IN IC950 Q972 Q971 Q952 Q951 Q942 Q941 IC702 CHECK FUSE OK CHECK C908 VOLTAGE AC120V 160VDC AC220V 304VDC NO YES YES YES YES NO NO NO CHECK IC901 PIN 6 WAVEFORM SQUARE WAVE COMES OUT CHECK D941 D951 D961 D971 D953 VOLTAGE 1 NO POWER ...

Page 17: ...N 1 5 11 CHECK IC303 PIN 4 105V PIN 8 15V TROUBLE IN P302 6 3V LINE TROUBLE IN PC SIGNAL P301 SIGNAL CABLE TROUBLE IN IC302 TROUBLE IN P302 15V LINE 105V LINE TROUBLE IN IC303 NO YES NO NO YES YES YES YES NO NO CHECK R G B CATHODE VOLTAGE TROUBLE IN R341 R343 R351 R353 L301 L303 D307 D312 TROUBLE IN CRT SOCKET YES NO ...

Page 18: ... INDICATOR GREEN or AMBER CHECK D712 ANODE 120V CHECK G1 VOLTAGE 35 15V TROUBLE IN D712 TROUBLE IN Q704 DPM MODE NO H and or V SYNC AMBER NO GREEN YES NO 3 NO RASTER CHECK CDT HEAT VOLTAGE 6 3V TROUBLE IN D941 Q942 Q941 YES NO TROUBLE IN CDT YES ...

Page 19: ...E VERTICAL LINE CHECK Q706 CHECK B VOLTAGE 50V CHECK T701 FBT PIN 2 31KHZ 70V 69KHZ 143V CHECK Q705 COLLECTOR WAVEFORM TROUBLE IN Q706 TROUBLE IN 50V LINE TROUBLE IN Q719 Q720 Q717 D710 TROUBLE IN Q705 TROUBLE IN T701 P701 NO NO YES YES YES YES NO NO ...

Page 20: ... 24 CHECK Q711 Q716 CHECK L703 TROUBLE IN IC401 MICOM TROUBLE IN Q711 Q716 TROUBLE IN L703 TROUBLE IN C722 C723 C726 C729 NO NO NO YES YES YES Cs SIGNAL TABLE HORIZONTAK FREQUENCY fH 29K 35 9K 36K 38 9K 39K 48 9K 49K 64 9K 65K 71K Cs1 L L H L H Cs3 L L H H H Cs2 L H L H H ...

Page 21: ...NO V DEFLECTION ONE HORIZONTAL LINE CHECK IC601 PIN 3 15V CHECK IC601 PIN 4 12V CHECK IC701 PIN 23 TROUBLE IN D602 15V LINE TROUBLE IN 12V LINE D953 C605 C606 C962 TROUBLE IN IC701 TROUBLE IN IC601 V CIRCUIT NO NO YES YES YES NO 3V ...

Page 22: ... 40V LINE H FBP TROUBLE IN IC302 IC301 TROUBLE IN IC301 IC302 NO YES DC 5V YES YES YES NO NO NO Pin 5 5V 5V Pin 10 5V H V 5V CHECK IC301 B CHECK IC301 PIN 12 WAVEFORM ENTER BUTTON MUST BE PRESSED 7 TROUBLE IN OSD CHECK IC301 PIN 5 10 WAVEFORM CHECK IC301 PIN 13 14 15 negative pulse negative pulse ...

Page 23: ...NG INTO DPM OFF MODE TROUBLE IN X401 TROUBLE IN IC401 MICOM TROUBLE IN Q941 Q942 Q951 Q952 Q971 Q972 TROUBLE IN PC OFF MODE FAILURE INPUT H V SYNC SIGNAL H V SYNC NO OFF MODE NO NO NO NO DPMF 0V DPM TABLE Mode Item NORMAL STAND BY SUSPEND OFF DPMF H H H L LED GREEN AMBER AMBER AMBER DPMS H L L L YES YES SEE DPM TABLE YES YES 5V 24MHz 8 TROUBLE IN DPM ...

Page 24: ...TOR VOLTAGE CHECK P902 CHECK RL901 TROUBLE IN IC401 MICOM TROUBLE IN Q953 TROUBLE IN P902 TROUBLE IN RL901 TROUBLE IN TH901 DEGAUSSING COIL NO DEGAUSSING DC 15V NO NO NO NO YES YES YES YES DEGAUSS ON THE OSD MENU MUST BE PRESSED 9 NO DEGAUSSING ...

Page 25: ...ILT NO ROTATION TROUBLE IN IC401 MICOM TROUBLE IN 15V LINE 6 3V LINE TROUBLE IN Q501 Q503 TROUBLE IN P501 TILT COIL D501 NO YES YES YES CHECK 15V LINE AND 6 3V LINE CHECK Q503 EMITTER VOLTAGE NO NO CHECK Q504 COLLECTOR WAVE FORM 12V ...

Page 26: ...E IN UL 2990 9C AT SIGNAL CABLE OUT UL 2990 9C DT METAL SHIELD BOTTOM CG572C COVER SCREW R COVER SCREW L SCREW PTP4x20BP MSWR FZMY BACK COVER ASS Y CG572C 3808 TILT SWIVEL ASS Y KCG572E B041 T047 PWB PCB ASS Y VIDEO KCG572E XGWND PWB PCB ASS Y MAIN KCG572E XGWND MAIN TOTAL ASS Y KCG572E G WAY Part No 3091TKB033B 2423GB0A81Z 339 002D 150 A29A 6174Z 1035A 6620TKB002A 6871TST193B 4810TKK145A 4810TKK1...

Page 27: ... CAPACITOR CERAMIC HIGH DIELECTRIC 10000PF D 1KV Z F Y5V TR C346 0CK10301945 CAPACITOR CERAMIC HIGH DIELECTRIC 10000PF D 1KV Z F Y5V TR C380 0CE107CF638 CAPACITOR AL ELECTROLYTIC 100UF SHL SD 16V M FM5 TP 5 C383 0CE335CK638 CAPACITOR AL ELECTROLYTIC 3 3UF SHL SD 50V M FM5 TP 5 C384 0CZZTFT001F CAPACITOR ECQB1H332JM3 332J 50V TP5 0 MATSUSHITA C385 0CK4710K515 CAPACITOR CERAMIC HIGH DIELECTRIC 470PF...

Page 28: ...BZTBU003K CAPACITOR POLYPROPYLENE 472J 20 0 13 0 8 0 10 0 800V J BUP FM10 C734 181 288B CAPACITOR POLYESTER MKT 100V 104JTR PHS26104 C735 181 288P CAPACITOR POLYESTER MKT 100V 153JTR PHS86153 C736 0CE105CP638 CAPACITOR AL ELECTROLYTIC 1UF SHL SD 160V M FM5 TP 5 C738 0CE105CK638 CAPACITOR AL ELECTROLYTIC 1UF SHL SD 50V M FM5 TP 5 C739 0CE476CN618 CAPACITOR AL ELECTROLYTIC 47UF SHL 100V M FL TP5 C74...

Page 29: ...E SWITCHING 1SS133 TP ROHM KOREA DO34 90V 0 4A 0 6A D501 0DS113309AA DIODE SWITCHING 1SS133 TP ROHM KOREA DO34 90V 0 4A 0 6A D502 0DS113309AA DIODE SWITCHING 1SS133 TP ROHM KOREA DO34 90V 0 4A 0 6A D601 0DS113309AA DIODE SWITCHING 1SS133 TP ROHM KOREA DO34 90V 0 4A 0 6A D602 0DR100009BA DIODE RECTIFIER RGP10D TP GULF SEMICONDUCTOR LTD DO41 200V D603 0DS113309AA DIODE SWITCHING 1SS133 TP ROHM KOREA...

Page 30: ...3 0ISG953600A IC SGS THOMSON TDA9536 11P ST 7 5NS TRIPLE VIDEO AMPLIFIER IC401 0IZZTSZ095A IC DRAWING MC68HC08BD48 42PIN SDIP BK MCU BD48 FLASH ROM IC402 0ISG240860A IC SGS THOMSON M24C08 BN6 8DIP BK 8K SERIAL IIC BUS EEPROM IC403 0IKE704200H IC KEC KIA7042AP TO 92 TP 4 2 VOLT DETECTOR IC601 0ISG817200A IC SGS THOMSON TDA8172 IC701 0ISG911300A IC SGS THOMSON TDA9113 32SDIP ST IIC DEFLECTION PROCES...

Page 31: ...AIRCHILD TO3PF NPN H OUT TR Q707 0TR564009AB TRANSISTOR KSB564AC YTA TP SANSUNG TO92 PNP Q708 0TR564009AB TRANSISTOR KSB564AC YTA TP SANSUNG TO92 PNP Q709 0TR141300AB TRANSISTOR KTD1413 BK KEC TO220IS NPN Q711 0TF630000DA FET IRF630A BK SAMSUNG 200V 9A TO220 Q712 0TF630000DA FET IRF630A BK SAMSUNG 200V 9A TO220 Q713 0TF630000DA FET IRF630A BK SAMSUNG 200V 9A TO220 Q714 0TR945009AA TRANSISTOR KSC94...

Page 32: ... 0RD2200A609 RESISTOR FIXED CARBON FILM 220 OHM 1 2 W 7 0 5 TA52 R344 0RD0472Q609 RESISTOR FIXED CARBON FILM 47 1 4W 3 5 TA52 R351 0RD1000A609 RESISTOR FIXED CARBON FILM 100 OHM 1 2 W 7 0 5 TA52 R352 0RD1600A609 RESISTOR FIXED CARBON FILM 160 OHM 1 2 W 7 0 5 TA52 R353 0RD1000A609 RESISTOR FIXED CARBON FILM 100 OHM 1 2 W 7 0 5 TA52 R381 0RD1001Q609 RESISTOR FIXED CARBON FILM 1K 1 4W 3 5 TA52 R382 0...

Page 33: ...IXED CARBON FILM 130K 1 4W 3 5 TA52 R721 0RD3602Q609 RESISTOR FIXED CARBON FILM 36K 1 4W 3 5 TA52 R722 0RD1001Q609 RESISTOR FIXED CARBON FILM 1K 1 4W 3 5 TA52 R723 0RD1001Q609 RESISTOR FIXED CARBON FILM 1K 1 4W 3 5 TA52 R724 0RD1001Q609 RESISTOR FIXED CARBON FILM 1K 1 4W 3 5 TA52 R725 0RD3901Q609 RESISTOR FIXED CARBON FILM 3 90K 1 4W 3 5 TA52 R726 0RD1003Q609 RESISTOR FIXED CARBON FILM 100K 1 4W 3...

Page 34: ...STOR FIXED CARBON FILM 27K 1 4W 3 5 TA52 R813 0RD4302A609 RESISTOR FIXED CARBON FILM 43K OHM 1 2 W 7 0 5 TA52 R814 0RD1002Q609 RESISTOR FIXED CARBON FILM 10K 1 4W 3 5 TA52 R816 0RN1102F409 RESISTOR FIXED METAL FILM 11K 1 6W 1 TA52 R818 0RN1802F409 RESISTOR FIXED METAL FILM 18K 1 6W 1 TA52 R819 0RD4701Q609 RESISTOR FIXED CARBON FILM 4 70K 1 4W 3 5 TA52 R901 0RD4703A609 RESISTOR FIXED CARBON FILM 47...

Page 35: ...C AXIAL TAPPING SG305 165 004A SPARK GAP RADIAL AG20PT 152F L3N S 23 HANDOK RADIAL BULK SW201 140 058D SWITCH TACT SKHV10911A LGEC NON 12 20 HORIZENTAL 160 T701 6174Z 1035A FBT FLY BACK TRANSFORMER FMMTC81 M1035A LEE HYOUNG YOON T703 6170TCZ001B TRANSFORMER HORIZONTAL DRIVER EI2218 3 0MH CB775C T901 6170TMZ103A TRANSFORMER SMPS EER4045 185UH V 16PIN CG572C SI NY TH901 163 067A THERMISTOR PTC ECPBC...

Page 36: ...R REFERENCE VOLTAGE STARTING CIRCUIT ERROR AMPLIFIER 1 Input 2 GND 3 Output 1 2 3 BLOCK DIAGRAM TDA8172 Vertical Deflection Output Circuit 1 7 7 6 5 4 3 2 1 NON INVERTING INPUT OUTPUT STAGE SUPPLY OUYPUT GROUND FLYBACK GENERATOR SUPPLY VOLTAGE INVERTING INPUT Power Amplifier Flyback Generator Thermal Protection YOKE Vs TDA8172 2 6 3 1 7 4 5 Pin Configuration BLOCK DIAGRAM ...

Page 37: ...nd PLL 7 SDA M0SI 8 SCL SCK 6 8 6 SS 3 RP NC 2 VCO PCI 5 4 VDD A VDD 9 16 1 VSS A VSS HFLB NC 10 CHAR VSYNC CHS VPOL HPOL VERD CH RFG NROW MCLK 8 9 7 8 6 15 54 13 32 Z 8 RDATA DATA ADR 9 ADDRC 4 R 7 PWM_CLK SC CCLK 8 CRADDR 4 LP 32 Y WADDR CHS CWS WCOLOR and CONTROL CCOLORS and SELECT CCOLORS and SELECT CWS DHOR MCLK FBKG INT B G R BLCKEDGE LUMINANCE OSD_EN SHADOW BSEN 54 WADDR X32B X64 W 3 15 WCO...

Page 38: ...AME E0 E2 SDA SCL WC Vcc Vss FUNCTION Chip Enable Inputs Serial Data Address Input Output Serial Clock Write Control Supply Voltage Ground M24C08 8K SERIAL I2 C BUS EEPROM 8 7 6 5 8 7 6 5 Vcc WC SCL SDA E0 E1 E2 Vss M2404C08 1 8 ...

Page 39: ... 40 PARTS TYPE PARTS TYPE 2N3904 KTC200 Y KTC3198 E B C E C B KTD1413 B E C KTA1275 E B C IRFS630A G D S KIA7042 E B C DTC114E B E C KSB564AC E B C ...

Page 40: ...1 88V 85 2V 3 40V 15 6V 50 4V 45V 5V 0V 7V 42V 15V V 0V Grand ...

Page 41: ...3 VIDEO BOARD Component Side 4 VIDEO BOARD Solder Side 1 MAIN BOARD Component Side 2 MAIN BOARD Solder Side 5 CONTROL BOARD Component Side 6 CONTROL BOARD Solder Side PRINTED CIRCUIT BOARD ...

Page 42: ...PACKING AND ACCESSORIES 45 Right Side Front Side Bottom Packing Top Packing Power Cord Signal Cable Owner s Manual ...

Page 43: ...Jul 2000 P NO 3828TSO038A Printed in Korea ...

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