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LG F700PJ-AL**E, Service Manual, Page: 1 / 33

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LG F700PJ-AL**E Service Manual Download Page 1

COLOR MONITOR

SERVICE MANUAL

Website:http://biz.LGservice.com

E-mail:http://www.LGEservice.com/techsup.html

CAUTION

BEFORE SERVICING THE UNIT, 
READ THE  SAFETY PRECAUTIONS IN THIS MANUAL.

MODEL:

F700P

(F700PJ-AL**E)

CHASSIS NO. : CA-127

(      ) **Same model for SVC

*Same looking with new chassis.

Issue Date; 2003. 4.

Summary of Contents for F700PJ-AL**E

Page 1: ...z LGservice com E mail http www LGEservice com techsup html CAUTION BEFORE SERVICING THE UNIT READ THE SAFETY PRECAUTIONS IN THIS MANUAL MODEL F700P F700PJ AL E CHASSIS NO CA 127 Same model for SVC Same looking with new chassis Issue Date 2003 4 ...

Page 2: ... Dots x 1200Lines 4 4 Video Bandwidth 203MHz 5 ENVIRONMENT 5 1 Operating Temperature 0 C 40 C 32 F 103 F Ambient 5 2 Relative Humidity 10 90 Non condensing 5 3 Altitude 10 000 ft 6 DIMENSIONS with TILT SWIVEL Width 415 0 mm 16 34 Depth 432 0 mm 17 00 Height 413 0 mm 16 25 7 WEIGHT with TILT SWIVEL Net Weight 18 kg 39 68lbs Gross Weight 20 5 kg 45 20 lbs 8 USB Specifications USB Standard Rev 1 0 co...

Page 3: ...ed per the original design 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...

Page 4: ...768 85Hz Yes MODE 4 91 146 10 971 8 127 2 844 0 406 1 016 1 422 85 024 11 762 11 235 0 527 0 011 0 033 0 483 1280 X 1024 85Hz Yes MODE 5 93 750 10 666 7 901 2 765 0 316 0 948 1 501 75 000 13 333 12 800 0 533 0 011 0 032 0 490 1600 X 1200 75Hz MARK A B C D E F A B C D E F MODE FACTORY PRESET MODE Resolution Recall H O R I Z O N T A L V E R T I C A L Sync Polarity Frequency Total Period Video Active...

Page 5: ... monitor is in stand by suspend or DPMS off mode this indicator color changes to amber 3 MENU or OSD Button Use this button to enter or exit the on screen display 4 Button Use these buttons to choose or adjust items in the on screen display 5 SELECT or SET Button Use this button to enter a selection in the on screen display 100 100 1 2 5 4 3 The Contrast and Brightness functions are also available...

Page 6: ...d printer and other peripherals to your monitor instead of having to connect them to your computer This will give you greater flexibility in setting up your system USB allows you to connect chain up to 120 devices on a single USB port and you can hot plug attach them while the computer is running or unplug them while maintaining Plug and Plug auto detection and configuration This monitor has an in...

Page 7: ...CONTROL LOCATIONS 7 VR901 B Adjustment 190V Line VR801 High Voltage Adjustment 26kV ...

Page 8: ...WIRING DIAGRAM 8 P301 P302 P303 Signal Cable AC Socket FBT P801 S S P901 P702 P451 P902 P401 P201 P250 P402 ...

Page 9: ... it upward See Figure 1 4 Release the latch c See Figure 2 and Tip Spec 5 Slide the Back Cover away from the Front Cabinet of the monitor 2 TOTAL CHASSIS ASSEMBLY REMOVAL 1 Set the monitor face downward 2 Pressing the latch a Main Chassis by pushing it upward Back Cover Cabinet b Tip C B A Tip Spec A Width 5 0 15 0mm B Depth 0 6 0 9mm C Height 12 0mm Figure 1 Figure 2 a a CDT a ...

Page 10: ...BLOCK DIAGRAM 10 SIGNAL INPUT ...

Page 11: ...nput the circuit consists of Q913 Q915 and IC401 control signal becomes stand by and suspend mode It s power consumption is below 8W 5 X ray Protection This circuit detects the rectified DC voltage comes from the FBT pin 4 If the high voltage of the FBT reaches up to about 30kV abnormal state H V control IC802 detects It stops B voltage supplied to the FBT T701 and high voltage is not be generated...

Page 12: ...7 Image Rotation Tilt Circuit This circuit corrects the tilt of the screen by supplying the image rotation signal to the tilt coil which is attached to the CDT near the deflection 18 Static Convergence Control Circuit This circuit corrects the convergence of the screen by supplying the convergence signal to the 4H STC coil which is attached to the CDT near the deflection 19 Moire Reduction Circuit...

Page 13: ...the IBM compatible PC 3 EEPROM ALL CLEAR Y Yes command Caution Do not run this procedure unless the EEPROM is changed All data in EEPROM mode data and color data will be erased 4 COMMAND PRESET START Y Yes command 5 DIST ADJ FOS ADJ command 6 Adjust H POSITION as arrow keys to center of the screen 7 Adjust H SIZE as arrow keys to 310 2mm 8 Adjust V POSITION as arrow keys to center of the screen 9 ...

Page 14: ...0 003 on the White Balance Meter with PC arrow keys 15 Adjust SUB CONTRAST command to 47 1FL of the raster luminance 15 Display color 15 0 full white patten at Mode 4 16 COLOR ADJ LUMINANCE ABL command 17 Adjust ABL to 32 1FL of the luminance 18 Exit from the program 6 Adjustment for Focus 1 Display H character in full screen at Mode 4 2 Adjust two Focus control on the FBT that focus should be the...

Page 15: ... TROUBLE IN FUSE F901 TROUBLE IN IC901 CHECK FUSE OK F901 CHECK D901 BRIDGE DIODE NO YES YES NO NO CHECK C905 VOLTAGE 145VDC at 110V input 310VDC at 220V input TROUBLE IN D924 D926 D923 D922 D921 D920 TROUBLE IN Q912 Q913 Q915 Q914 IC903 IC904 Q902 YES NO CHECK D924 D926 D923 D922 D921 D920 YES ...

Page 16: ...2 PIN 19 20 21 PIN 10 5V CHECK IC303 PIN 1 3 5 PIN10 12V PIN 6 80V TROUBLE IN P301 SIGNAL CABLE PC SIGNAL TROUBLE IN IC302 P302 TROUBLE IN IC303 TROUBLE IN CDT SOCKET NO YES NO NO YES YES CHECK R G B CATHODE VOLTAGE TROUBLE IN IC304 NO YES NO CHARACTER ...

Page 17: ...T D924 D926 CATHODE 190V D923 D929 CATHODE 80V IC904 OUT 12V D921 CATHODE 6 3V CHECK IC401 MICOM PIN 6 5V HIGH IC801 PIN 10 12V HIGH ROTATE SCREEN CONTROL KNOB TO CLOCKWISE or COUNTER CLOCKWIES TROUBLE IN IC401 MICOM IC801 TROUBLE IN CDT SOCKET BOARD TROUBLE IN PRIMARY CIRCUIT OF T901 TROUBLE IN P302 SIGNAL CABLE AMBER GREEN OK YES NO YES NO ...

Page 18: ...N NO V DEFLECTION ONE HORIZONTAL LINE CHECK IC601 Pin 3 15V CHECK IC601 PIN 7 47V TROUBLE IN T901 15V LINE TROUBLE IN T701 47V LINE TROUBLE IN IC601 V CIRCUIT NO NO YES YES CHECK IC801 PIN 12 SAWTOOTH WAVE TROUBLE IN IC801 NO YES ...

Page 19: ...DE TROUBLE IN X401 IC401 TROUBLE IN IC401 TROUBLE IN IC401 TROUBLE IN T901 or PC INPUT H V SYNC SIGNAL NO H V SYNC SIGNAL NO NO NO DPMS TABLE Mode Item NORMAL STAND BY SUSPEND OFF H V SYNC ON ON OFF ON ON OFF OFF OFF LED GREEN AMBER AMBER AMBER VIDEO NORMAL OFF 0V OFF 0V OFF 0V YES YES CHECK B LINE 12V 15V 80V 5V TROUBLE IN Q913 Q915 NO YES STAND BY SUSPEND DPMS OFF MODE FAILURE ...

Page 20: ...HECK IC401 PIN 6 5V CHECK Q920 COLLECTOR VOLTAGE 0 5V CHECK P901 CHECK RL901 TROUBLE IN IC401 MICOM TROUBLE IN D925 TROUBLE IN P901 TROUBLE IN RL901 TROUBLE IN TH901 DEGAUSSING COIL NO DEGAUSSING NO NO NO NO YES YES YES YES ...

Page 21: ... 21 EXPLODED VIEW 9 8 2 5 6 12 11 11 7 B A 10 13 13 1 16 14 a b c 3 4 15 ...

Page 22: ...10MM 0 5 130T W O PURITY FB790J PWB PCB ASSEMBLY SUB F700PJ CONTROL TOTAL BRAND DI CKD FBT FLY BACK TRANSFORMER FQM19A013 T910BJ 98K SAMSUNG 19 FILTER CIRC EMC 02MD5 DELTA BK F900BJ CABLE D SUB UL20276 9C 5 8MM AT 1560MM GRAY 85964 T910BJ DM HOLDER PCB FIX PC ABS METAL ASSEMBLY BASE FB790G SCREW PTP 4 16 MSWR FZMY PWB PCB ASSEMBLY USB F700PJ SUB TOTAL BRAND DI CKD SHIELD ASSEMBLY TOP FB790G SCREW ...

Page 23: ...181 288E MKT 100V 474JTR PHS 26474 C458 0CK1040K945 0 1UF 50V Z F TR C459 0CK1010K515 100PF 50V K B TR C460 0CE475CK638 4 7UF SHL SD 50V M FM5 TP 5 C601 0CQ6821N419 6800PF 100V J PE NI TP C602 181 288Q MKT 100V 154JTR PHS26154 C603 0CK1020W515 1000P 500V K B TS C605 0CE476CN618 47UF SHL 100V M FL TP5 C611 0CE108CH618 1000UF SHL 25V M FL TP5 C701 0CE106CK638 10UF SHL SD 50V M FM5 TP 5 C702 0CE3376N...

Page 24: ...7 5 BULK C922 0CE3376N650 330M SMS 100V M FM7 5 C923 0CK1010W515 100P 500V K B TS DATE 2003 4 18 S AL LOC NO PART NO DESCRIPTION SPECIFICATION C925 0CE228CH618 2200U SHL 25V M FL TP5 C926 0CE108EF618 1000UF KMG 16V M FL TP 5 C927 0CE228CH618 2200U SHL 25V M FL TP5 C928 0CE108EF618 1000UF KMG 16V M FL TP 5 C929 0CK1020K515 1000PF 50V K B TR C930 0CQ2721N419 2700PF 100V J PE NI TP C931 0CK1010W515 1...

Page 25: ...O34 0 5W ZD712 0DZ560009AG GDZJ5 6B TP GRANDE DO 34 500 ZD801 0DZ110009AD MTZJ11B TP ROHM K DO34 500MW ZD802 0DZ180009BD GDZJ18B TP GRANDE DO34 0 5W ZD804 0DZ180009BD GDZJ18B TP GRANDE DO34 0 5W ZD901 0DZ240009BJ GDZJ24B TP GRANDE DO34 500MW DATE 2003 4 18 S AL LOC NO PART NO DESCRIPTION SPECIFICATION ZD902 0DZ560009AG GDZJ5 6B TP GRANDE DO 34 500 IC302 0IPRPNS025A LM1246DDA NA NATIONAL SEMICO IC3...

Page 26: ... TO Q914 0TR928009AB KSA928A Y TP SAMSUNG TO92L P Q915 0TR319809AA KTC3198 Y KTC1815 TP KEC TO Q920 0TR319809AA KTC3198 Y KTC1815 TP KEC TO R301 0RD0752Q609 75 1 4W 3 5 TA52 R302 0RD0752Q609 75 1 4W 3 5 TA52 DATE 2003 4 18 S AL LOC NO PART NO DESCRIPTION SPECIFICATION R303 0RD0752Q609 75 1 4W 3 5 TA52 R305 0RN6201F409 6 20K 1 6W 1 TA52 R306 0RD1002Q609 10K 1 4W 3 5 TA52 R307 0RD5102Q509 51K OHM 1 ...

Page 27: ...801Q609 6 80K 1 4W 3 5 TA52 R738 0RN2702F409 27K 1 6W 1 TA52 R739 0RC1004A609 1M OHM 1 2 W 7 0 5 TA52 DATE 2003 4 18 S AL LOC NO PART NO DESCRIPTION SPECIFICATION R740 0RN1503G409 150K 1 4W 1 TA52 R741 0RD2001Q609 2K 1 4W 3 5 TA52 R742 0RD6800Q609 680 1 4W 3 5 TA52 R743 0RD1000A609 100 OHM 1 2 W 7 0 5 TA52 R744 0RX1502J609 15KOHM 1 W 5 TA52 R745 0RD0472Q609 47 1 4W 3 5 TA52 R746 0RX1503L607 150K O...

Page 28: ...270K 1 4W 3 5 TA52 R949 0RN0220H609 0 22 1 2W 5 TA52 R950 0RD1002Q609 10K 1 4W 3 5 TA52 DATE 2003 4 18 S AL LOC NO PART NO DESCRIPTION SPECIFICATION R951 0RD1101A609 1 1K OHM 1 2 W 7 0 5 TA52 R952 0RD4701Q609 4 70K 1 4W 3 5 TA52 R953 0RD1002Q609 10K 1 4W 3 5 TA52 R954 0RD4700A609 470 OHM 1 2 W 7 0 5 TA52 R955 0RD4701Q609 4 70K 1 4W 3 5 TA52 R984 0RX3902J609 39K OHM 1 W 5 TA52 R990 0RD0512Q609 51 1...

Page 29: ...210TCE001H HB 1T2012 301JT CERATEC 2012 L809 6210TCE001H HB 1T2012 301JT CERATEC 2012 L810 6210TCE001H HB 1T2012 301JT CERATEC 2012 L812 6210TCE003D BAS3514T BO SUNG 3514MM AXIA R801 0RH1502D622 15K 1 10W 5 D R TP R802 0RH1502D622 15K 1 10W 5 D R TP R803 0RH1502D622 15K 1 10W 5 D R TP R804 0RD0222Q609 22 1 4W 3 5 TA52 R805 0RD0222Q609 22 1 4W 3 5 TA52 R806 0RD0222Q609 22 1 4W 3 5 TA52 R807 0RH1502...

Page 30: ...function Output terminal of reference voltage 5V Ground terminal M62501P FP M62501 1 2 3 4 5 6 7 8 PWM OUT Vcc TIN Cosc Cagc POUT OVP UVP GND VREF DTC FB IN IN BO BI 16 15 14 13 12 11 10 9 PIN CONFIGURATION TOP VIEW Outlone P 16P4 FP 16P2S PIN NO Symbol PWM OUT Vcc TIN CAGC CAGC P OUT OVP UVP BI BO IN IN FB DTC VREF GND Functional Description Teerminal Number and The facillty 1 2 3 4 5 6 7 8 9 10 ...

Page 31: ... 31 32 SCHEMATIC DIAGRAM NOTICE Since this is a basic schematic diagram The value of components and some partial connection are sucject to be changed for improvement without notice ...

Page 32: ... 33 34 PRINTED CIRCUIT BOARD 3 MAIN BOARD Component Side 4 MAIN BOARD Solder Side 1 CONTROL BOARD Component Side 2 CONTROL BOARD Solder Side 5 USB BOARD Component Side 6 USB BOARD Solder Side ...

Page 33: ...Apr 2003 P NO 3828TSL086D Printed in Korea ...

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