LG Flatron L1722P Service Manual Download Page 22 | Manualshive

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DATE: 2005. 04. 26.

*S

DESCRIPTION / SPECIFICATION

C201

0.1UF 1608 50V 10% R/TP X7R

C202

0.1UF 1608 50V 10% R/TP X7R

C203

0.1UF 1608 50V 10% R/TP X7R

C204

0.1UF 1608 50V 10% R/TP X7R

C205

0.1UF 1608 50V 10% R/TP X7R

C206

0.1UF 1608 50V 10% R/TP X7R

C207

0.1UF 1608 50V 10% R/TP X7R

C208

0.1UF 1608 50V 10% R/TP X7R

C209

0.1UF 1608 50V 10% R/TP X7R

C210

0.1UF 1608 50V 10% R/TP X7R

C211

0.1UF 1608 50V 10% R/TP X7R

C212

0.1UF 1608 50V 10% R/TP X7R

C213

0.1UF 1608 50V 10% R/TP X7R

C214

0.1UF 1608 50V 10% R/TP X7R

C215

0.1UF 1608 50V 10% R/TP X7R

C216

0.1UF 1608 50V 10% R/TP X7R

C217

0.1UF 1608 50V 10% R/TP X7R

C218

0.1UF 1608 50V 10% R/TP X7R

C219

0.1UF 1608 50V 10% R/TP X7R

C220

0.1UF 1608 50V 10% R/TP X7R

C221

0.1UF 1608 50V 10% R/TP X7R

C222

0.1UF 1608 50V 10% R/TP X7R

C223

0.1UF 1608 50V 10% R/TP X7R

C224

0.1UF 1608 50V 10% R/TP X7R

C225

0.1UF 1608 50V 10% R/TP X7R

C226

0.1UF 1608 50V 10% R/TP X7R

C227

0.1UF 1608 50V 10% R/TP X7R

C228

0.1UF 1608 50V 10% R/TP X7R

C229

0.1UF 1608 50V 10% R/TP X7R

C230

0.1UF 1608 50V 10% R/TP X7R

C231

0.01UF 1608 50V 10% R/TP B(Y

C232

0.01UF 1608 50V 10% R/TP B(Y

C233

0.01UF 1608 50V 10% R/TP B(Y

C234

0.01UF 1608 50V 10% R/TP B(Y

C235

0.01UF 1608 50V 10% R/TP B(Y

C236

0.01UF 1608 50V 10% R/TP B(Y

C237

0.1UF 1608 50V 10% R/TP X7R

C238

0.1UF 1608 50V 10% R/TP X7R

C239

8PF 1608 50V 0.5 PF R/TP NP0

C240

8PF 1608 50V 0.5 PF R/TP NP0

C241

0.1UF 1608 50V 10% R/TP X7R

C243

100PF 1608 50V 5% R/TP NP0

C244

0CC101CK41A

100PF 1608 50V 5% R/TP NP0

C245

0CK103CK51A

0.01UF 1608 50V 10% R/TP B(Y

C246

0CC221CK41A

220PF 1608 50V 5% R/TP NP0

C247

0CC220CK41A

22PF 1608 50V 5% R/TP NP0

C248

0CK104CK56A

0.1UF 1608 50V 10% R/TP X7R

C249

0CK104CK56A

0.1UF 1608 50V 10% R/TP X7R

C250

0CK103CK51A

0.01UF 1608 50V 10% R/TP B(Y

C251

0CK103CK51A

0.01UF 1608 50V 10% R/TP B(Y

C252

0CK104CK56A

0.1UF 1608 50V 10% R/TP X7R

C253

0CE107EF628

"100UF KMG,RD 16V 20% FM2.5 T"

DATE: 2005. 04. 26.

DESCRIPTION / SPECIFICATION

1UF 1608 10V 10% R/TP X7R

1000PF 1608 50V 5% R/TP NP0

0.01UF 1608 50V 10% R/TP B(Y

"100UF KMG,RD 16V 20% FM2.5 T"

"100UF KMG,RD 16V 20% FM2.5 T"

0.1UF 1608 50V 10% R/TP X7R

1000PF 1608 50V 5% R/TP NP0

0.1UF 1608 50V 10% R/TP X7R

1000PF 1608 50V 5% R/TP NP0

0.1UF 1608 50V 10% R/TP X7R

1000PF 1608 50V 5% R/TP NP0

0.1UF 1608 50V 10% R/TP X7R

1000PF 1608 50V 5% R/TP NP0

"100UF KMG,RD 16V 20% FM2.5 T"

"100UF KMG,RD 16V 20% FM2.5 T"

"100UF KMG,RD 16V 20% FM2.5 T"

100PF 1608 50V 5% R/TP NP0

100PF 1608 50V 5% R/TP NP0

100PF 1608 50V 5% R/TP NP0

100PF 1608 50V 5% R/TP NP0

100PF 1608 50V 5% R/TP NP0

100PF 1608 50V 5% R/TP NP0

0.1UF 1608 50V 10% R/TP X7R

0.1UF 1608 50V 10% R/TP X7R

0.1UF 1608 50V 10% R/TP X7R

0.1UF 1608 50V 10% R/TP X7R

0.1UF 1608 50V 10% R/TP X7R

0.1UF 1608 50V 10% R/TP X7R

0.1UF 1608 50V 10% R/TP X7R

0.1UF 1608 50V 10% R/TP X7R

0.1UF 1608 50V 10% R/TP X7R

0.1UF 1608 50V 10% R/TP X7R

0.1UF 1608 50V 10% R/TP X7R

0.1UF 1608 50V 10% R/TP X7R

0.1UF 1608 50V 10% R/TP X7R

0.1UF 1608 50V 10% R/TP X7R

0.1UF 1608 50V 10% R/TP X7R

0.1UF 1608 50V 10% R/TP X7R

0.1UF 1608 50V 10% R/TP X7R

"100UF KMG,RD 16V 20% FM2.5 T"

0.01UF 1608 50V 10% R/TP B(Y

1UF 1608 10V 10% R/TP X7R

1UF 1608 10V 10% R/TP X7R

0.01UF 1608 50V 10% R/TP B(Y

C646

0CK103CK51A

0.01UF 1608 50V 10% R/TP B(Y

C647

0CK103CK51A

0.01UF 1608 50V 10% R/TP B(Y

C648

0CK103CK51A

0.01UF 1608 50V 10% R/TP B(Y

D601

0DS226009AA

KDS226 TP KEC - 80V - - 4NSE

D602

0DS226009AA

KDS226 TP KEC - 80V - - 4NSE

D603

0DS226009AA

KDS226 TP KEC - 80V - - 4NSE

D604

0DS226009AA

KDS226 TP KEC - 80V - - 4NSE

REPLACEMENT PARTS LIST

CAUTION: BEFORE REPLACING ANY OF THESE COMPONENTS,

READ CAREFULLY THE SAFETY PRECAUTIONS IN THIS MANUAL.

* NOTE : S

SAFETY Mark

AL ALTERNATIVE PARTS

DIODEs

http://www.wjel.net

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Summary of Contents for Flatron L1722P

Page 1: ...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 62 MODEL L1722P L1722PFM AN EF Same model for Service h t t p w w w w j e l n e t ...

Page 2: ...h t t p w w w w j e l n e t ...

Page 3: ...og 2 Voltage Level 0 0 70 V a Color 0 0 0 Vp p b Color 7 0 0 35 Vp p c Color 15 0 0 70 Vp p 3 Input Impedance 75 Ω 3 3 Operating Frequency Horizontal 30 83kHz Analog 30 71kHz Digital Vertical 56 75Hz 4 Max Resolution D sub Analog 1280 x 1024 75Hz DVI Digital 1280 x 1024 60Hz 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...

Page 4: ...Data1 T M D S Data1 T M D S Data1 3 Shield T M D S Data3 T M D S Data3 5V Power Ground return for 5V H Sync and V Sync Pin Signal DVI D 1 8 9 17 24 16 16 17 18 19 20 21 22 23 24 Hot Plug Detect T M D S Data0 T M D S Data0 T M D S Data0 5 Shield T M D S Data5 T M D S Data5 T M D S Clock Shield T M D S Clock T M D S Clock T M D S Transition Minimized Differential Signaling DVI D Connector h t t p w ...

Page 5: ...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 it off with a s...

Page 6: ...und 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 can be damaged ...

Page 7: ...der 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 coating to the area...

Page 8: ...ute 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 the component s...

Page 9: ...00 V Lines 60 317 628 600 1 4 23 6 H Pixels 49 5 46 875 1056 800 16 80 160 800 x 600 V Lines 75 0 625 600 1 3 21 7 H Pixels 57 283 49 725 1152 832 32 64 224 832 x 624 V Lines 74 55 667 624 1 3 39 8 H Pixels 65 0 48 363 1344 1024 24 136 160 1024 x 768 V Lines 60 0 806 768 3 6 29 9 H Pixels 78 75 60 123 1312 1024 16 96 176 1024 x 768 V Lines 75 029 800 768 1 3 28 10 H Pixels 100 0 68 681 1456 1152 3...

Page 10: ... 9 BLOCK DIAGRAM h t t p w w w w j e l n e t ...

Page 11: ...G B signal to transmitter 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 12V is provided for inverter 5V is provided for LCD panel and 5V for micom 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 DC12V to AC 700Vrms and operates back light la...

Page 12: ...ough a bridge rectifier and a bulk capacitor 3 Energy Transfer 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 ou...

Page 13: ...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 h t t p w w w w j e l n e t ...

Page 14: ...play 2 Wait for about 5 seconds and press MENU POWER key 3 Shows the service OSD menu 4 The service OSD menu contains additional menus that the User OSD menu as described below a CLEAR ETI To initialize using time b AUTO COLOR W B balance and Automatically sets the gain and offset value c AGING Select Aging mode on off d PANEL Select using panel e NVRAM INIT EEPROM initialize 24C08 f 9300 Allows y...

Page 15: ...NO NO CHECK POWER BOARD AND FIND OUT A SHORT POINT AS OPENING EACH POWER LINE CHECK 5VS LINE OPEN CHECK NO CHECK U201 VCC XTAL RESET YES CHECK J603 VOLTAGE PIN5 PIN6 5V CHECK U202 PIN 32 VOLTAGE 5V IS U201 PIN 5 OR 7 VOLTAGE REPEATED AS PULSE SHAPE NO PROBLEM 1 1 2 1 2 Waveforms J603 5 6 U202 32 U201 5 7 YES YES h t t p w w w w j e l n e t ...

Page 16: ...IPS CHECK MICOM INV ON OFF PORT 1 CONFIRM BRIGHTNESS OSD CONTRL STATE 2 CHECK MICOM DIM ADJ PORT LIPS YES YES YES YES J603 PIN5 PIN6 5V J603 PIN9 5V J603 PIN10 5V CHECK PULSE AS CONTACTING SCOPE PROBE TO CAUTION LABEL CONTACT PROBE TO CAUTION LABEL CAN YOU SEE PULSE AT YOUR SCOPE 3 3 Waveforms J603 9 h t t p w w w w j e l n e t ...

Page 17: ...RING CONDITION 2 CHECK X201 3 TROUBLE IN U201 CHECK CONNECTION LINE FROM D SUB TO U201 YES YES U201 POWER PIN11 50 3 3V U201 PIN169 170 OSCILLATE AS 14 318MHZ U201 PIN181 IS 64KHz H SYNC PIN182 IS 60Hz V SYNC IS PULSE APPEARED AT SIGNAL PINS AT MODE 12 4 6 5 4 Waveforms U201 169 170 5 U201 181 H SYNC 6 U201 182 V SYNC YES h t t p w w w w j e l n e t ...

Page 18: ...M TROUBLE IN DPM NO NO TROUBLE IN PC CHECK PC PC IS NOT GOING INTO DPM OFF MODE TROUBLE IN SIGNAL CABLE YES YES CHECK R629 R630 SYNC CHECK U201 PIN 81 0V 7 7 Waveforms R629 H SYNC 7 R630 V SYNC h t t p w w w w j e l n e t ...

Page 19: ... 18 WIRING DIAGRAM Connector Ass y P N 6631T11012W or 6631T11020W Connector Ass y P N 6631T20024C Connector Ass y P N 6631T20008G Connector Ass y P N 6631T20023A h t t p w w w w j e l n e t ...

Page 20: ... 19 EXPLODED VIEW 010 020 050 060 070 080 090 110 100 140 150 160 120 130 030 040 h t t p w w w w j e l n e t ...

Page 21: ...ECTOR ASSEMBLY 30P H H 200MM UL20276 LG708G or 6631T11020W CONNECTOR ASSEMBLY 30P 30P H H 200MM UL20276AWG30 CD PB FREE 17 19 INCH 6871TPT282C PWB PCB ASSEMBLY POWER M CHASSIS 1720 DOCKING 2PIN 450V POWER TOTAL LIEN CHANG PB FREE 3313TL7115C MAIN TOTAL ASSEMBLY L1720PFM KNUSEFM LF BRAND CL 64 6871TUT048A PWB PCB ASSEMBLY USB L1720PN L1920P USB SUB TOTAL BRAND LF SMSC2502 or 6871TUT035A PWB PCB ASS...

Page 22: ...00UF KMG RD 16V 20 FM2 5 T DATE 2005 04 26 S AL LOC NO PART NO DESCRIPTION SPECIFICATION C403 0CK105CD56A 1UF 1608 10V 10 R TP X7R C405 0CC102CK41A 1000PF 1608 50V 5 R TP NP0 C406 0CK103CK51A 0 01UF 1608 50V 10 R TP B Y C407 0CE107EF628 100UF KMG RD 16V 20 FM2 5 T C408 0CE107EF628 100UF KMG RD 16V 20 FM2 5 T C409 0CK104CK56A 0 1UF 1608 50V 10 R TP X7R C410 0CC102CK41A 1000PF 1608 50V 5 R TP NP0 C4...

Page 23: ...J0472D677 47 OHM 1 10 W 5 1608 R TP R228 0RJ1002D677 10K OHM 1 10 W 5 1608 R TP R232 0RJ0000D677 0 OHM 1 10 W 5 1608 R TP R233 0RJ2700D677 270 OHM 1 10 W 5 1608 R TP R236 0RJ1002D677 10K OHM 1 10 W 5 1608 R TP R237 0RJ1002D677 10K OHM 1 10 W 5 1608 R TP R238 0RJ1002D677 10K OHM 1 10 W 5 1608 R TP R240 0RJ3301D677 3 3K OHM 1 10 W 5 1608 R TP R253 0RJ1002D677 10K OHM 1 10 W 5 1608 R TP R254 0RJ1001D...

Page 24: ...608 16V 80 20 R TP F C532 0CK104CK56A 0 1UF 1608 50V 10 R TP X7R C535 0CK104CK56A 0 1UF 1608 50V 10 R TP X7R C536 0CK104CK56A 0 1UF 1608 50V 10 R TP X7R C537 0CK105CF94A 1UF 1608 16V 80 20 R TP F C539 0CK104CK56A 0 1UF 1608 50V 10 R TP X7R D501 0DS226009AA KDS226 TP KEC 80V 4NSE D502 0DS226009AA KDS226 TP KEC 80V 4NSE D503 0DS226009AA KDS226 TP KEC 80V 4NSE D504 0DS226009AA KDS226 TP KEC 80V 4NSE ...

Page 25: ...SCHEMATIC DIAGRAM 24 1 SCALER 1 2 J603 5 6 U202 32 U201 5 7 4 5 U201 169 170 U201 181 H SYNC 6 U201 182 V SYNC 1 4 5 2 h t t p w w w w j e l n e t ...

Page 26: ... 25 2 POWER h t t p w w w w j e l n e t ...

Page 27: ... 26 3 CONNECTOR 7 7 2 1 J603 5 6 U202 32 3 J603 9 7 R629 H SYNC 7 R630 V SYNC 1 3 h t t p w w w w j e l n e t ...

Page 28: ...Apr 2005 P NO 3828TSL082X Printed in Korea h t t p w w w w j e l n e t ...

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