LG Flatron L1552S Скачать руководство пользователя страница 10 | Manualshive

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DISASSEMBLY-Set

Disassembly Like a picture.

1. Pull the front cover upward.

2. Then, let the all latches are separated.(#3-1~3-2)

3. Put the front face down.

Disassemble back cover.

# 1

# 2-2

# 2-1

# 3

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Содержание Flatron L1552S

Страница 1: ...7 Number of pages 28 Including blank 1page Part No 1 2 Service Guide Specification Service Guide Specification Changes 4 REV NO MM DD YY SIGNATURE CHANGE NO CHANGE CONTENTS 1 2 3 4 5 7 6 SUFFIX L1552S SFN L1552S BFN LG MFL30290813 1 Origin Notification LGEDI Printed in Indonesia LGEWA Printed in U K LGESP Printed in Brazil LGEMX Printed in Mexico LGENT Printed in China LGEIL Printed in India 8 Spe...

Страница 2: ...t Pagination sheet P NO MFL30290813 Total pages 28pages Cover English 2 English 3 English 4 English English Rear Cover Front cover Inside blank English English 22 English 23 English 24 English 25 Rear cover Inside 26 ...

Страница 3: ...ervice com E mail http www LGEservice com techsup html CAUTION BEFORE SERVICING THE UNIT READ THE SAFETY PRECAUTIONS IN THIS MANUAL CHASSIS NO LM57A MODEL L1552S L1552S BFQ ACN QP L1552S L1552S SFQ ACN QP To apply the MSTAR Chip Same model for Service ...

Страница 4: ... Contrast Ratio 300 min 400 Typ 3 SIGNAL Refer to the Timing Chart 3 1 Sync Signal Type Separate Sync 3 2 Video Input Signal 1 Type R G B Analog 2 Voltage Level 0 0 71 V a Color 0 0 0 Vp p b Color 7 0 0 467 Vp p c Color 15 0 0 714 Vp p 3 Input Impedance 75 Ω 3 3 Operating Frequency Horizontal 30 63kHz Vertical 56 75Hz 4 Max Resolution D sub Analog 1024 x 768 75Hz 5 POWER SUPPLY 5 1 Power AC 100 24...

Страница 5: ...e 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 circuit within the module If the surface of panel become dirty please wipe i...

Страница 6: ...st receiver ground lead to the receiver chassis ground before connecting the test receiver positive lead Always remove the test receiver ground lead last 9 Use with this receiver only the test fixtures specified in this service manual CAUTION Do not connect the test fixture ground strap to any heat sink in this receiver Electrostatically Sensitive ES Devices Some semiconductor solid state devices ...

Страница 7: ...tip as the solder melts 2 Draw away the melted solder with an anti static suction type solder removal device or with solder braid before removing the IC Replacement 1 Carefully insert the replacement IC in the circuit board 2 Carefully bend each IC lead against the circuit foil pad and solder it 3 Clean the soldered areas with a small wire bristle brush It is not necessary to reapply acrylic coati...

Страница 8: ...onnection 4 Route the jumper wire along the path of the out away copper pattern and let it overlap the previously scraped end of the good copper pattern Solder the overlapped area and clip off any excess jumper wire At Other Connections Use the following technique to repair the defective copper pattern at connections other than IC Pins This technique involves the installation of a jumper wire on t...

Страница 9: ...els 31 5 37 50KHz 840 640 16 64 120 640 x 480 V Lines 75 0 Hz 500 480 1 3 16 7 H Pixels 36 0 35 156 KHz 1024 800 24 72 128 800 x 600 V Lines 56 25 Hz 625 600 1 2 22 8 H Pixels 40 0 37 879 KHz 1056 800 40 128 88 800 x 600 V Lines 60 3 Hz 628 600 1 4 23 9 H Pixels 50 0 48 077 KHz 1040 800 56 120 64 800 x 600 V Lines 72 188 Hz 666 600 37 6 23 10 H Pixels 49 5 46 875 KHz 1056 800 16 80 160 800 x 600 V...

Страница 10: ... 8 DISASSEMBLY Set Disassembly Like a picture 1 Pull the front cover upward 2 Then let the all latches are separated 3 1 3 2 3 Put the front face down Disassemble back cover 1 2 2 2 1 3 ...

Страница 11: ...tand 1 In assembly state Twist Stand Body to Right side 2 Pull Stand and Separate Stand from Monitor set 3 Push the four latches on the bottom to the outside and Separate Stand Body Base Reference the 3 2 1 2 3 1 3 2 4 ...

Страница 12: ...UMx6AL ADC TMDS Rx MStarACE LVDS Tx LVDS Analog R G B D Sub 5V 3 3V 1 8V Vcc 3 3V Scaler MCU Intel8032 Regulator LDO INVERTER ADAPTER KEY 3 3V 1 8V Line Buffer OSD SSC EEPROM System Module 3 3V SDA SCL 3 3V Flash ROM 12V ...

Страница 13: ...o signal converted analog to digital interpolates input to 1024 x 768 resolution signal and outputs 8 bit R G B signal to transmitter 2 Power Part This part consists of the one regulator and one LDO to convert power 3 3V is provided for LCD panel Also 12V is converted 3 3V by regulator and 3 3V and 1 8V are provided for scaler Converted power is provided for IC in the main board 3 MICOM Part This ...

Страница 14: ... is available to 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 ...

Страница 15: ...display 2 Wait for about 5 seconds and press MENU POWER switch with 1 second interval 3 The SVC OSD menu contains additional menus that the User OSD menu as described below a Auto Color W B balance and Automatically sets the gain and offset value b NVRAM INIT EEPROM initialize 24C08 c CLEAR ETI To initialize using time d AGING Select Aging mode on off e R G B 9300K Allows you to set the R G B 9300...

Страница 16: ...PIN3 1 8V CHECK U201 NO NO NO CHECK ADAPTER LED IS IT GREEN CHECK 3 3 LINE OPEN CHECK CHECK 3 3V LINE NO CHECK X TAL YES YES YES YES CHECK ADAPTER OUTPUT VOLTAGE 12V CHECK U801 PIN1 VOLTAGE 3 3V IS U201 PIN90 3 3V VOLTAGE CHECK U201 PIN 96 PULSE 1 NO PROBLEM 1 Waveforms U201 96 ...

Страница 17: ...LE CHECK ADAPTER AND 12 LINE CHECK MICOM INV ON OFF PORT 1 CONFIRM BRIGHTNESS OSD CONTRL STATE 2 CHECK MICOM DIM ADJ PORT INVENTER YES YES YES YES U701 PIN13 12V U701 PIN2 OVER THAN 1 5V U701 PIN8 3 3V CHECK PULSE AS CONTACTING SCOPE PROBE TO CAUTION LABEL CONTACT PROBE TO CAUTION LABEL CAN YOU SEE PULSE AT YOUR SCOPE ...

Страница 18: ...CHECK PIN122 123 SOLDERING CONDITION 2 CHECK X201 3 TROUBLE IN U201 CHECK CONNECTION LINE FROM D SUB TO U201 YES YES YES U201 PIN 16 75 3 3V U201 PIN96 97 OSCILLATE AS 14 31MHZ U201 PIN27 IS 48KHz H SYNC PIN28 IS 60Hz V SYNC IS PULSE APPEARED AT SIGNAL PINS AT MODE 12 1 2 1 2 Waveforms U201 96 97 U501 43 H SYNC 2 U501 44 V SYNC ...

Страница 19: ...E IN DPM TROUBLE IN DPM NO NO TROUBLE IN U201 CHECK PC PC IS NOT GOING INTO DPM OFF MODE CHECK H V SYNC LINE YES YES CHECK R442 R443 CHECK U201 PIN 27 28 SYNC PULSE 3 3 Waveforms R216 R778 H Sync 3 R217 R781 V Sync ...

Страница 20: ... 23 EXPLODED VIEW 010 020 060 090 070 100 110 120 140 150 050 040 130 080 030 ...

Страница 21: ... 35509K0241 STAND BASE ASSY 35509K0245A Cover L1752S STAND BODY 35509K0246A Cover L1952S STAND BODY MFB30404701 MOLD PMMA BenQ LENS L1552 L1552 LENS PMMA MAZ30406901 PRESS SPTE C 0 3mm BOTTOM L1552 AB SBHG L1552 Rear shield EAX30798501 64 L1552S CONTROL SINGLE 1 1 6TM Phend 160 170 PB free 68709M0740A 02 MAIN LM57A EPOXY DOUBLE L1552S MGJ30392601 PRESS SBHG T0 8 SUPPORTER AL L1552 MEY30414501 MOLD...

Страница 22: ... 24 1 MAIN BOARD SCHEMATIC DIAGRAM ...

Страница 23: ... 24 2 D SUB KEY BOARD DC DC ...

Страница 24: ... 24 3 INVERTER ...

Страница 25: ...Jul 2006 P NO MFL30290813 Printed in China ...

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