LG Flatron N1642W Скачать руководство пользователя страница 16 | Manualshive

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3. NO RASTER (OSD IS NOT DISPLAYED) – MSTAR

NO RASTER

(OSD IS NOT DISPLAYED)

NO

NO

NO

TROUBLE IN CABLE

OR LCD MODULE

CHECK IC203

1. CHECK C509, C510

SOLDERING CONDITION

2. CHECK X501

3. TROUBLE IN IC100

CHECK CONNECTION

LINE FROM D-SUB TO

IC100

IC100

PIN96, 97

OSCILLATE AS

14.31MHZ?

IC100

PIN27 IS 48KHz H-SYNC?

PIN28 IS 60Hz V-SYNC?

IS PULSE APPEARED

AT SIGNAL PINS?

AT MODE 12?

1

2

1

2

Waveforms

IC100-#96, 97

IC100-#27 H-SYNC

2 IC100-#28 V-SYNC

YES

YES

YES

IC100

PIN 16, 75

3.3V?

- 16 -

Copyright 2007 LG Electronics. Inc. All right reserved.

Only for training and service purposes

LGE Internal Use Only

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Содержание Flatron N1642W

Страница 1: ...ite 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 LM97A MODEL N1642W N1642W PFT A AP Same model for Service Internal Use Only ...

Страница 2: ...AC 100 240V 50 60Hz 0 8A 5 2 Power Consumption 6 ENVIRONMENT 6 1 Operating Temperature 10 C 35 C 50 F 95 F 6 2 Relative Humidity 10 80 Non condensing 6 3 MTBF 50 000 HRS with 90 Confidence level Lamp Life 40 000 Hours Min 7 DIMENSIONS with TILT SWIVEL Width 381 7 mm 15 03 Depth 198 4 mm 7 81 Height 323 9 mm 12 75 8 WEIGHT with TILT SWIVEL Net Weight 2 6 kg 5 78 lbs Gross Weight 3 6 kg 8 0 lbs SPEC...

Страница 3: ...cuit 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 it off with a softmaterial Cleaning with a dirty or rough ...

Страница 4: ...fore 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 can be damaged easily by static electricity Such componen...

Страница 5: ...h 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 coating to the areas Small Signal Discrete Transistor Removal ...

Страница 6: ...ut 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 the component side of the circuit board 1 Remove the defec...

Страница 7: ...35 720 X 400 H Pixels 31 469 800 640 16 96 48 V Lines 25 175 59 94 525 480 10 2 33 640 x 480 H Pixels 37 879 1056 800 40 128 88 V Lines 40 0 60 317 628 600 1 4 23 800 x 600 H Pixels 48 363 1344 1024 24 136 160 V Lines 65 0 60 0 806 768 3 6 29 1024 x 768 H Pixels 47 712 1792 1360 64 112 256 V Lines 85 5 60 015 795 768 3 6 18 1360 x 768 Copyright 2007 LG Electronics Inc All right reserved Only for t...

Страница 8: ...the latch first Pull the cabinet upwards Then separate all latches on each side Remove the control button from cabinet Then disassemble the connector 1 4 Turn around the base lock to open the lock between base cover and stand body 6 2 3 5 Then separate stand body and base cover 7 Copyright 2007 LG Electronics Inc All right reserved Only for training and service purposes LGE Internal Use Only ...

Страница 9: ...R G B H V Input SW Sync IC300 Amp IC APA2068 T con 1CH LVDS T con 2CH L Speaker R Speaker Inv_On Dim_ADJ Lamp_ADJ IC103 EEPROM IC102 Flash ROM SCLK SDATA CSZ SDO SCK SDI D SDA D SCL Volume Mute 5V SW 5V MODON 3 3V 3 3V 5V HP DET L R Audio P204_11p P300_6p P200 P201 JK200 JK201 JK300 P202 P205 P302_4p IC203 3 3V Reg 5V 3 3 V 6 8 ohm IC204 1 8V Reg 1 8 V 5V 5V 3 3V 1 8V 3 3V ST_DET 3 3V Audio AMP Bl...

Страница 10: ... 2 Power Part This part consists of the one 3 3V and one 1 8V regulators to convert power which is provided 5V in Power board 18V is provided for inverter 5V is provided for LCD panel and micom in N1642W case Also 5V is converted 3 3V and 1 8V by regulator Converted power is provided for IC in the main board The inverter converts from DC18V to AC 700Vrms and operates back light lamps of module in ...

Страница 11: ... This part function is for 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 achieve the dc output stabilized and also the over power protection is also mon...

Страница 12: ...serPort 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 Copyright 2007 LG Electronics Inc All right reserved Only for training and service ...

Страница 13: ...al 3 The SVC OSD menu contains additional menus that the User OSD menu as described below a CLEAR ETI To initialize using time c Auto Color W B balance and Automatically sets the gain and offset value press key for over 3 sec d AGING Select Aging mode on off b Module To select applied module d NVRAM INIT EEPROM initialize 24C08 press key for over 3 sec e R G B 9300K Allows you to set the R G B 930...

Страница 14: ...0 96 Check Key Control Connector Routine Check IC100 NO NO Check 3 3V Line Open Check Check 3 3V Line NO Check X TAL YES Check P204Voltage Pin5 Pin6 5V Check IC203 Pin2 Voltage 3 3V Is IC100 Pin75 3 3V Voltage Check IC100 Pin 96 Pulse 1 YES YES YES 14 Copyright 2007 LG Electronics Inc All right reserved Only for training and service purposes LGE Internal Use Only ...

Страница 15: ...HECK MICOM INV ON OFF PORT 1 CONFIRM BRIGHTNESS OSD CONTRL STATE 2 CHECK MICOM DIM ADJ PORT LIPS P204 PIN5 PIN6 5V P204 PIN9 5V P204 PIN10 5V CHECK PULSE AS CONTACTING SCOPE PROBE TO CAUTION LABEL CONTACT PROBE TO CAUTION LABEL CAN YOU SEE PULSE AT YOUR SCOPE YES YES YES YES 15 Copyright 2007 LG Electronics Inc All right reserved Only for training and service purposes LGE Internal Use Only ...

Страница 16: ...100 CHECK CONNECTION LINE FROM D SUB TO IC100 IC100 PIN96 97 OSCILLATE AS 14 31MHZ IC100 PIN27 IS 48KHz H SYNC PIN28 IS 60Hz V SYNC IS PULSE APPEARED AT SIGNAL PINS AT MODE 12 1 2 1 2 Waveforms IC100 96 97 IC100 27 H SYNC 2 IC100 28 V SYNC YES YES YES IC100 PIN 16 75 3 3V 16 Copyright 2007 LG Electronics Inc All right reserved Only for training and service purposes LGE Internal Use Only ...

Страница 17: ...PC IS NOT GOING INTO DPM OFF MODE CHECK H V SYNC LINE CHECK R221 R222 CHECK IC100 PIN 27 28 SYNC PULSE 3 3 Waveforms R221 H Syn 3 R222V Sync YES YES 17 Copyright 2007 LG Electronics Inc All right reserved Only for training and service purposes LGE Internal Use Only ...

Страница 18: ...WIRING DIAGRAM 18 6631900030L 30P 6P 11P EAD57188308 EAD42157801 Copyright 2007 LG Electronics Inc All right reserved Only for training and service purposes LGE Internal Use Only ...

Страница 19: ...EXPLODED VIEW 19 300 320 310 410 420 400 430 910 920 440 020 060 070 080 ...

Страница 20: ...N35581001 Cover MOLD ABS HF 350 W1642 ABS Base cover 020 EAJ42583301 LCD Module TFT M156B1 L01WXGA15 6INCH1366X768250CDCOLOR65 16 9500 1CMO15 6 W TN ZBD Non Glare 2CCFL 16 7M Responsetime 8ms ViewingAngle 90 45 CHIMEIOPT EBR41617001 PCB Assembly CONTROL T T LM73A BAIKAL 3 19 INCH RD EBU50480810 BAIKAL 4 MSTAR ANALOG BRAND LM97A DPS 25EP B FREE N1642W LCD DELTA ELECTRONICS DELTA ELECTRONICS INTERNA...

Страница 21: ...1 SCALER SCHEMATIC DIAGRAM 21 Copyright 2007 LG Electronics Inc All right reserved Only for training and service purposes LGE Internal Use Only ...

Страница 22: ...2 INTERFACE 22 Copyright 2007 LG Electronics Inc All right reserved Only for training and service purposes LGE Internal Use Only ...

Страница 23: ...102 TRGP10D D101 TRGP10M B5 C102 1nF 1KV K R107 100K 1W J C101 68uF 450V M R104 24K 1 4W J T101 4 SRW24LQ T24H016 1 D251 BYQ28E 200 C251 680pF 200V K C253 470uF 25V M R251 51 1W J 18V 5V 18V ON OFF BRIG DC BRIG PWM 5 1V 5 1V L254 CB 4 0 15 R256 1K 1 8W J ZD254 TZX18C TAP R258 100K 1 8W J Q251 MMBT4401LT1G C261 470uF 25V M R257 1K 2W J P201 C207 10uF 50V M U201 AS431BZTR E1 1 2 ZD103 HZ24 2 TA E C2...

Страница 24: ...W J R354 10 1 8W J R320 10 1 8W J Q305 AP4511GH OLR T301 7 IH DP8009 D401 1N4148TA C429 5pF 6KV D C431 C432 1nF 1KV K P401 4 FB OP1 R432 1K 1 8W F R431 1K 1 8W F D412 BAV99 235 C328 2 2nF 50V K R323 332K 1 8W F C314 220pF 50V F R318 24 9K 1 8W F C320 1uF 25V K D303 BAV70 235 D311 1N4148TA C321 330nF 25V K C315 R328 RT Q303 2N7002A RTK P RT C312 1uF 25V K R308 90 9K 1 8W F C311 10nF 50V K REF C327 ...

Страница 25: ...Mar 2009 P NO MFL59082025 Printed in China ...

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