manualshive.com logo in svg

LG Flatron L1710M, Service Manual

Share
Download
LG Flatron L1710M Service Manual Download Page 9

- 8 -

DESCRIPTION OF BLOCK DIAGRAM

1. Video Controller Part & Display Data Transmitter Part.(MST9111B)

This part amplifies the level of the video signal for digital conversion and converts the analog video signal to the

digital video signal using a pixel clock.

The pixel clock for each mode is generated by the PLL.
The range of the pixel clock is from 25MHz to 135MHz.
This part consists of the Scaler.

The Scaler gets the video signal which is converted from analog to digital, interpolates input to 1280 °ø 1024

resolution signal 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 transmits 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 is supplied from signal cable.
The controlled data of each mode is stored in EEPROM. 

3. Power Part

This part consists of the one 3.3V and one 2.5 regulators to convert power which is provided 5V in LIPS Board.
5V is provided for LCD Panel.
Also, 5V is converted to 3.3V and 2.5V by regulator. Converted power is provided for IC in the main board.

Summary of Contents for Flatron L1710M

Page 1: ...te 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 61 MODEL L1710M L1710MM AL R Same model for Service To apply the Mstar Chip ...

Page 2: ... 1 ...

Page 3: ...56 75Hz 4 Max Resolution 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 Width 376 mm 14 80 Depth 222 4 mm 8 75 Height 427 mm 16 81 8 WEIGHT with TILT SWIVEL Net Weight 5 85 kg 12 89 lb...

Page 4: ...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 should not be exposed to the direct sunlight Avoid contact with water as it may bring a sho...

Page 5: ...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 6: ...ay operates normally If the display is in DPM Energy Saving mode this indicator color changes to amber 2 Menu Button Use this button to enter or exit the On Screen Display 3 Button Use these buttons to choose or adjust items in the On Screen Display Volume Use these buttons to decrease or increase the volume level 100 100 Bring up Contrast and Brightness adjustment 37 REAR VIEW BOTTOM Power Connec...

Page 7: ...ntrol Panel 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 This function allows you to secure the current control settings so that they cannot be inadvertently changed Press...

Page 8: ... LVDS Analog R G B D Sub To Key Con trol 5V 3 3V 2 5V 3 3V 2 5V Brt_Ctl Inv_ C tl LIPS Audio Processor Audio Amp 12 V SCL SDA Mute 12 V 8 V SCL SDA 12 V Audio In Mute Head phone Regula tor Regula tor Regula tor Spea ker Left Spea ker Right TDA7 44 9 TPA6 03 0A BLOCK DIAGRAM ...

Page 9: ...ignal 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 transmits 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 is supplied from signa...

Page 10: ...rectifier and a bulk capacitor 3 Energy Transfer The function of this part is to transfer the primary energy to secondary through a power transformer 4 Output rectifier and filter The function of this part is to make a pulse width modulation control to provide the driver signal to power switch and to adjust the duty cycle during different AC input and output loading condition to achieve the dc out...

Page 11: ...m is available for LCD Monitor only 1 Port Setup a Copy UserPort sys file to c WINNT system32 drivers folder b Run Userport exe c Remove all default number d Add 300 3FF e Click Start button f Click Exit button 2 EDID Read Write 1 Run WinEDID exe 2 Edit Week of Manufacture Year of Manufacture Serial Number a Input User Info Data b Click Update button c Click Write button ...

Page 12: ...11 Figure 1 Cable Connection SERVICE OSD 1 Turn off the power switch at the front side of the display 2 Wait for about 3 seconds and press MENU POWER switch with 1 second interval 3 The SVC OSD menu contains additional menus for User OSD menu as described below a MODULE To select applied module b NVRAM INIT EEPROM initialize 24C08 c ADC OFFSET The lowest value of input levels is set to digitally 0...

Page 13: ...HORT POINT AS OPENING EACH POWER LINE CHECK J705 VOLTAGE PIN5 PIN6 5V NO CHECK 5VS LINE OPEN CHECK CHECK 3 3V LINE CHECK X TAL CHECK U501 PIN 8 Voltage 5V NO CHECK U201 PIN122 PULSE TROUBLE SOMEWHERE ELSE U201 CHECK U201 PIN114 3 3 VOLTAGE NO YES YES NO PROBLEM YES CHECK KEY CONTROL CONNECTOR ROUTINE ...

Page 14: ...OSD IS NOT DISPLAYED CHECK LIPS CHECK J705 VOLTAGE PIN5 PIN6 5V NO 1 CONFIRM BRIGHTNESS OSD CONTRL STATE 2 CHECK MICOM DIM ADJ PORT CHECK J705 VOLTAGE PIN10 5V NO REPLACE LIPS CHECK PULSE AS CONTACTING SCOPE PROBE TO CAUTION LABEL CAN YOU SEE PULSE AT YOUR SCOPE NO REPLACE CCFL LAMP IN THE LCD MODULE YES YES YES YES ...

Page 15: ...V NO CHECK U801 CHECK 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 MST9011B 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 16: ... 15 4 TROUBLE IN DPM TROUBLE IN DPM TROUBLE SOMEWHERE ELSE U501 CHECK PC PC IS NOT GOING INTO DPM OFF MODE NO CHECK H V SYNC LINE NO YES YES CHECK R773 R775 SYNC CHECK U501 PIN 43 44 SYNC PULSE ...

Page 17: ... 16 EXPLODED VIEW 17 18 1 8 9 10 11 13 12 16 14 15 6 7 5 2 3 4 a ...

Page 18: ... 6401TZZ030A SPEAKER ASSEMBLY L284014CSGCS07W213 1W 16OHM SUNLINK 6401TZZ029A SPEAKER ASSEMBLY K403B016 1W 16OHM MOTORJOY 4950TKK337A METAL FIX SPEAKER LM568E 6871TST612A PWB PCB ASSEMBLY SUB L1710MM CONTROL TOTAL BRAND GUMI For World Wide 6871TST612C PWB PCB ASSEMBLY SUB L1710MM CONTROL TOTAL IOMG CKD IRAN 6871TPT271B PWB PCB ASSEMBLY POWER L1710SM POWER TOTAL LIEN CHANG M CHASSIS THE INTERGRATED...

Page 19: ... 10 R TP X7R C734 0CK104CK56A 0 1UF 1608 50V 10 R TP X7R C735 0CK104CK56A 0 1UF 1608 50V 10 R TP X7R C760 0CE107EF610 100UF KMG RD 16V 20 FL BULK C801 0CK103CK51A 0 01UF 1608 50V 10 R TP B Y5 DATE 2004 3 31 S AL LOC NO PART NO DESCRIPTION SPECIFICATION C803 0CE107EF610 100UF KMG RD 16V 20 FL BULK C804 0CK104CK56A 0 1UF 1608 50V 10 R TP X7R C805 0CK104CK56A 0 1UF 1608 50V 10 R TP X7R C806 0CK103CK5...

Page 20: ...D677 0 OHM 1 10 W 5 1608 R TP R711 0RJ0000D677 0 OHM 1 10 W 5 1608 R TP R716 0RJ4701D677 4 7K OHM 1 10 W 5 1608 R TP R717 0RJ4701D677 4 7K OHM 1 10 W 5 1608 R TP R720 0RJ0000D677 0 OHM 1 10 W 5 1608 R TP R722 0RJ1000D677 100 OHM 1 10 W 5 1608 R TP R723 0RJ0332D677 33 OHM 1 10 W 5 1608 R TP R724 0RJ0332D677 33 OHM 1 10 W 5 1608 R TP DATE 2004 3 31 S AL LOC NO PART NO DESCRIPTION SPECIFICATION R725 ...

Page 21: ... 1608 10V 10 R TP X7R J903 6612F00001C DJ S360LB KSD STEREO R A LIGH J910 6612F00001A DJ S360P KSD STEREO R A PINK J911 6612F00001A DJ S360P KSD STEREO R A PINK L902 6210TCE001P HB 1S2012 121JT CERATECH 2012 L903 6210TCE001P HB 1S2012 121JT CERATECH 2012 L907 6210TCE001P HB 1S2012 121JT CERATECH 2012 L908 6210TCE001D HB 1M2012 601JT CERATEC 2012M L909 6210TCE001P HB 1S2012 121JT CERATECH 2012 R901...

Page 22: ...SCHEMATIC DIAGRAM 21 1 H V SYNC DETECT 1 ...

Page 23: ... 22 2 MICOM 2 ...

Page 24: ... 23 3 POWER 3 ...

Page 25: ... 24 4 CONNECTOR JACKS 4 ...

Page 26: ... 25 5 AUDIO 1 ...

Page 27: ... 26 6 AUDIO 1 1 ...

Page 28: ...Mar 2004 P NO 3828TSL074R Printed in Korea ...

Reviews:

No comments

Brands by name

Popular brands

Load more brands