LG Flatron L1715S Service Manual Download Page 14 | Manualshive

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4. TROUBLE IN DPM

TROUBLE IN DPM

TROUBLE IN PC

CHECK PC
PC IS NOT GOING
INTO DPM OFF MODE

NO

TROUBLE IN
SIGNAL CABLE

NO

YES

YES

CHECK

R734, R741

(SYNC) ?

CHECK

U501 PIN 24

(0V) ?

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Summary of Contents for Flatron L1715S

Page 1: ...site http biz LGservice com E mail http www LGEservice com techsup html CAUTION BEFORE SERVICING THE UNIT READ THE SAFETY PRECAUTIONS IN THIS MANUAL CHASSIS NO CL 43 MODEL L1715S L1715SL AL R L1716S L1716SL AL R Same model for Service ...

Page 2: ...esolution Analog 1280 x 1024 75Hz 5 POWER SUPPLY 5 1 Power AC 100 240V 50 60Hz 1 0A 5 2 Power Consumption 6 ENVIRONMENT 6 1 Operating Temperature 10 C 35 C 50 F 95 F Ambient 6 2 Relative Humidity 10 80 Non condensing 6 3 MTBF 50 000 Hours Min 7 DIMENSIONS with TILT SWIVEL Full Up Position Width 386 mm 15 20 Depth 152 mm 5 98 Height 372 mm 14 65 Foldedl Position Width 386 mm 15 20 Depth 66 mm 2 60 ...

Page 3: ... such as pencil or pen as this may result in damage to the panel Protect the module from the ESD as it may damage the electronic circuit C MOS Make certain that treatment person s body are grounded through wrist band Do not leave the module in high temperature and in areas of high humidity for a long time The module not be exposed to the direct sunlight Avoid contact with water as it may a short c...

Page 4: ...V 60 0 806 768 3 6 29 H 60 123 1312 1024 16 96 176 V 75 029 800 768 1 3 28 H 68 681 1456 1152 32 128 144 V 75 062 915 870 3 3 39 H 61 805 1504 1152 18 134 200 V 65 96 937 900 2 4 31 H 63 981 1688 1280 48 112 248 V 60 02 1066 1024 1 3 38 H 79 976 1688 1280 16 144 248 V 75 035 1066 1024 1 3 38 Mode H V Sort 1 2 3 4 5 6 7 8 9 10 11 12 13 25 175 28 321 25 175 31 5 40 0 49 5 57 283 65 0 78 75 100 0 92 ...

Page 5: ...rol Panel 1 3 2 4 100 100 When adjusting your display settings always press the SELECT AUTO button before entering the On Screen Display OSD This will automatically adjust your display image to the ideal settings for the current screen resolution size display mode The best display mode is 1280x1024 60Hz This function optimizes the brightness contrast or color value to the surrounding conditions an...

Page 6: ...ion allows you to secure the current control settings so that they cannot be inadvertently changed Press and hold the MENU button and button for 3 seconds the message CONTROLS LOCKED appears You can unlock the OSD controls at any time by pushing the MENU button and button for 3 seconds the message CONTROLS UNLOCKED will appear CONTROLS LOCKED UNLOCKED MENU and ...

Page 7: ...ST9111 including ADC LVDS SCALER MTV312 Micom LCD Module R G B differential LVDS Low Voltage Differential Signaling LIPS 5V 5V 5V AC Input 3 3V Reg 2 5V Reg 5V 5V R G B H V Sync 3 3V 2 5V 3 3V 2 5V BLOCK DIAGRAM ...

Page 8: ...l and outputs 8 bit R G B signal to transmitter Especially pre amp ADC Video controller Transmitter are merged to one chip MST9111 by MSTAR This part transmit digital signal from the Scaler to the receiver of module 2 Micom Part This Part consists of EEPROM IC which stores control data Reset IC and the Micom The Micom distinguishes polarity and frequency of the H V Sync are supplied from signal ca...

Page 9: ...h a bridge rectifier and a bulk capacitor 3 Energy Transfer This part function is transfer the primary energy to secondary through a power transformer 4 Output rectifier and filter This part function is to make a pulse width modulation control and to provide the driver signal to power switch to adjust the duty cycle during different AC input and output loading condition to achive the dc output sta...

Page 10: ...gn Co E E PROM with each mode data saved 1 Adjustment process for LCD MONITOR 1 Display half window pattern or mixed white and black pattern at Mode 8 1024x768 60Hz 2 Press the POWER and MENU key at the same time to light monitor then go to adjustment mode 3 Press the MENU s w next press UP button you will see adjustment OSD menu 4 Press the AUTO SELECT to select the adjustment item first use the ...

Page 11: ...RT POINT AS OPENING EACH POWER LINE CHECK J705 VOLTAGE PIN5 PIN6 5V NO CHECK 5VS LINE OPEN CHECK CHECK U501 PIN 8 Voltage 5V NO CHECK IIC LINE CONNECTION U501 U502 CHECK U201 VCC XTAL RESET IS U201 PIN114 3 3V VOLTAGE REPEATED AS PULSE SHAPE NO YES YES NO PROBLEM YES CHECK KEY CONTROL CONNECTOR ROUTINE ...

Page 12: ...OT DISPLAYED CHECK LIPS J705 PIN5 PIN 6 5V NO 1 CONFIRM BRIGHTNESS OSD CONTRL STATE 2 CHECK MICOM DIM ADJ PORT J705 PIN10 5V NO LIPS CHECK PULSE AS CONTACTING SCOPE PROBE TO CAUTION LABEL CONTACT PROBE TO CAUTION LABEL CAN YOU SEE PULSE AT YOUR SCOPE NO REPLACE CCFL LAMP IN THE LCD MODULE YES YES YES YES ...

Page 13: ...NO CHECK U804 U201 PIN122 123 OSCILLATE AS 12MHZ CHECK CONNECTION LINE FROM D SUB TO U501 TROUBLE IN CABLE OR LCD MODULE YES YES YES 3 NO RASTER OSD IS NOT DISPLAYED MST9111 NO RASTER OSD IS NOT DISPLAYED U501 PIN43 IS 48KHz H SYNC PIN44 IS 60Hz V SYNC IS PULSE APPEARED AT SIGNAL PINS AT MODE 12 NO NO ...

Page 14: ... 14 4 TROUBLE IN DPM TROUBLE IN DPM TROUBLE IN PC CHECK PC PC IS NOT GOING INTO DPM OFF MODE NO TROUBLE IN SIGNAL CABLE NO YES YES CHECK R734 R741 SYNC CHECK U501 PIN 24 0V ...

Page 15: ...35 R532 R550 C550 X201 C228 C229 120 R739 C220 J702 50 R502 R750 R751 U501 R501 C512 C502 C503 15 R536 C513 10 Q502 C501 C514 5 R592 R593 R204 R205 C211 10 1 C212 C215 20 C207 30 C208 1 40 Q505 R525 R541 20 R581 R571 R531 D707 R530 R580 R570 R520 R504 R509 R590 R591 Q701 R207 R733 R522 C216 A Q702 R716 R740 C201 C712 C202 C203 C209 C713 C210 C714 1 R528 R529 25 C703 40 D703 R725 R705 R722 ZD702 C5...

Page 16: ... 16 2 MAIN BOARD Solder Side 1 C214 C224 C213 ...

Page 17: ... 17 3 POWER BOARD Component Side 4 POWER BOARD Solder Side ...

Page 18: ... 18 5 CONTROL BOARD Component Side L1715SL 6 CONTROL BOARD Solder Side L1715SL 7 CONTROL BOARD Component Side L1716SL 8 CONTROL BOARD Solder Side L1716SL ...

Page 19: ... 19 EXPLODED VIEW 1 2 3 4 5 6 7 9 8 10 11 ...

Page 20: ...1 A4 LG PHILPS TFT COLOR 17 TFT LCD BACK COVER ASSEMBLY L1715 L050 350U M GRAY TILT SWIVEL ASSEMBLY L1715 350U M GRAY WITH B C PWB PCB ASSEMBLY SUB L1515SL CONTROL TOTAL BRAND CL 32 FLATRON L1715S PWB PCB ASSEMBLY SUB L1516SL CONTROL TOTAL BRAND FLATRON L1716S PWB PCB ASSEMBLY MAIN L1715SL ALKRR BRAND CL 43 TOTAL PWB PCB ASSEMBLY POWER AI 0019 POWER TOTAL LIEN CHANG L1710SL LIPS FOR HYDIS LPL PWB ...

Page 21: ...08 50V 5 R TP NP0 C731 0CC680CK41A 68PF 1608 50V 5 R TP NP0 C732 0CK103CK51A 0 01UF 1608 50V 10 R TP B Y C760 0CE107EF610 100UF KMG RD 16V 20 FL BULK C801 0CK103CK51A 0 01UF 1608 50V 10 R TP B Y DATE 2003 5 9 S AL LOC NO PART NO DESCRIPTION SPECIFICATION C802 0CK104CK56A 0 1UF 1608 50V 10 R TP X7R C803 0CK105CD56A 1UF 1608 10V 10 R TP X7R C804 0CC102CK41A 1000PF 1608 50V 5 R TP NP0 C817 0CE107EF61...

Page 22: ...08 R TP R723 0RJ0332D677 33 OHM 1 10 W 5 1608 R TP R724 0RJ0332D677 33 OHM 1 10 W 5 1608 R TP R725 0RJ4701D677 4 7K OHM 1 10 W 5 1608 R TP R726 0RJ4701D677 4 7K OHM 1 10 W 5 1608 R TP R727 0RJ4701D677 4 7K OHM 1 10 W 5 1608 R TP R733 0RJ1001D677 1K OHM 1 10 W 5 1608 R TP R734 0RJ4701D677 4 7K OHM 1 10 W 5 1608 R TP R735 0RJ0000D677 0 OHM 1 10 W 5 1608 R TP R740 0RJ1001D677 1K OHM 1 10 W 5 1608 R T...

Page 23: ...56 57 58 59 60 61 62 63 64 102 101 100 99 98 97 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 NC AVSS NC NC AVSS NC NC AVDD NC NC AVSS NC NC AVDD REXT AVDD_PLL AVSS_PLL AVDD AVSS NC NC NC NC NC NC NC BIN0M BIN0 GIN0M GIN0 SOGIN0 RIN0M RIN0 AVSS AVDD RMID REFP REFM AVSS_PLL NC NC NC NC LVB0M LVB0P GNDP VDDP LVB1M LVB1P LVB2M LVB2P LVBCKM LVBCKP LVB3...

Page 24: ...ESS BUFFERS COLUMN DECODERS START STOP LOGIC XDEC DATA IN STORAGE HIGH VOLTAGE TIMING CONTROL STATE COUNTERS SLAVE SCL A0 A1 VCC VSS A2 ADDRESS COMPARATORS CONTROL LOGIC ACK E PROM 2 PIN CONFIGURATION DIP Package p SOIX Package J TSSOP Package U BLOCK DIAGRAM PIN FUNCTION Pin Name A0 A1 A2 SDA SCL WP Vcc Vss Function Device Adress Inputs Serial Data Address Serial Clock Write Protect 1 8V to 6 0V ...

Page 25: ...SCHEMATIC DIAGRAM 25 1 SCALER ...

Page 26: ... 26 2 MICOM ...

Page 27: ... 27 3 POWER ...

Page 28: ... 28 4 CONNECTOR JACKS ...

Page 29: ... 29 5 KEY PART AUTO SET RIGHT LEFT DOWN ...

Page 30: ...May 2003 P NO 3828TSL074P Printed in Korea ...

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