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Service Guide Specification
Service Guide Specification
1.
Model Description
MODEL
F730BL
SUFFIX
KLEUED
2.
Printing Specification
1. Trim Size (Format) :
2. Printing Colors
• Cover :
LG COLOR
• Inside :
Black
3. Stock (Paper)
Snow white paper 150 g/
• Cover :
Snow white paper 100 g/
• Inside :
4. Printing Method :
5. Bindery :
6. Language :
7. Number of pages :
3.
Special Instructions
4.
Changes
8
7
6
5
4
3
2
1
REV.
MM/DD/YY
NO.
BRAND
Product Name
215mm x 280 mm
Saddle stitch
English
45
% %
% %
CHANGE NO.
% %
% %
LG
FLATRON F730B
CHANGE
9 9 9 9 9 9 9 9
FAN.Y.Y
YEO.H.M
2005.02.22
2005.02.22
Part No.
3828TSL110E
CONTENTS
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Summary of Contents for LG Flatron F730BL-AL QE Series
- Page 1 FLATRON F730B Printing Specification 1. Trim Size (Format) : 215mm x 280 mm 2. Printing Colors • Cover : LG COLOR • Inside : Black 3. Stock (Paper) Snow white paper 150 g/ • Cover : Snow white paper 100 g/ •...
- Page 2 Website:http://biz.LGservice.com E-mail:http://www.LGEservice.com/techsup.html COLOR MONITOR SERVICE MANUAL CHASSIS NO. : CA-136 MODEL: F730B (F730BL-AL**QE) ) **Same model for SVC CAUTION BEFORE SERVICING THE UNIT, READ THE SAFETY PRECAUTIONS IN THIS MANUAL. *Same looking with new chassis. Issue Date; 2003. 12 .
- Page 3 CONTENTS PRINT CIRCUIT BOARD ......... 44 SPECIFICATIONS 1. PICTURE TUBE 3-2. Power Consumption Size : 17 inch DefIection Angle : 90° MODE POWER CONSUMPTION LED COLOR Neck Diameter : 29.1 mm less than 68 W NORMAL (ON) GREEN Stripe Pitch : 0.24 mm less than 4 W Face Treatment...
- Page 4 SAFETY PRECAUTIONS SAFETY-RELATED COMPONENT WARNING! X-RADIATION There are special components used in this color monitor The only potential source of X-radiation is the picture tube. which are important for safety. These parts are marked However, when the high voltage circuitry is operating on the schematic diagram and the replacement properly there is no possibility of an X-radiation problem.
- Page 5 SERVICING PRECAUTIONS CAUTION: Before servicing receivers covered by this 9. Use with this receiver only the test fixtures specified in this service manual. service manual and its supplements and addenda, read and follow the SAFETY PRECAUTIONS on page 3 of this CAUTION: Do not connect the test fixture ground strap publication.
- Page 6 General Soldering Guidelines Replacement 1. Use a grounded-tip, low-wattage soldering iron and 1. Carefully insert the replacement IC in the circuit board. appropriate tip size and shape that will maintain tip 2. Carefully bend each IC lead against the circuit foil pad and solder it.
- Page 7 Circuit Board Foil Repair At Other Connections Excessive heat applied to the copper foil of any printed Use the following technique to repair the defective copper circuit board will weaken the adhesive that bonds the foil pattern at connections other than IC Pins. This technique to the circuit board causing the foil to separate from or involves the installation of a jumper wire on the "lift-off"...
- Page 8 TIMING CHART VIDEO SYNC << Dot Clock (MHz), Horizontal Frequency (kHz), Vertical Frequency (Hz), Horizontal etc... (µs), Vertical etc... (ms) >> Sync Video Active Sync Duration Front Porch Total Period Blanking Time Back Porch Resolution Mode Frequency Time (B) Sort Polarity –...
- Page 9 DISASSEMBLY 1. Carefully place the monitor on a soft cushion 4. Separate the back cover from the latch at the and stand it upright with the cabinet facing bottom of the cabinet using the jig as shown in downward. the figure. 2.
- Page 10 ADJUSTMENT 1. Preparation for Service Adjustment 2. Adjustment by Service Hot key How to enter SVC HOT KEY GENERAL INFORMATION 1. Press Menu and OSD window will appear. 2. While OSD window is displayed, is seen on the All adjustment are thoroughly checked and corrected left bottom of OSD window.
- Page 11 4. Distortion 10. Parallelogram Scanning frequency : All Mode (Mode 1~4) Display image : Crosshatch pattern Horizontal : 10 Row Vertical : 8 Row 11. Adjustment of white balance (Adjustment of chromaticity diagram) *(Adjustment of white balance must be made after entering Hot Key Mode and DEGAUSS.) 2.0mm, 2.0mm...
- Page 13 3. Adjustment Using Service software Program 2. Adjustment for White Balance and Luminance. (Adjustment Program) 1) Set the White Balance Meter. 2) Press the DEGAUSSING on the OSD menu for 1. Adjustment for Factory Mode (Preset Mode). demagnetization of the CDT. 3) Display color 0,0 pattern at Mode 4.
- Page 14 - Adjustment and EDID Data Down in GCSC Windows EDID V1.0 User Manual 2. EDID Read & Write 1) Run WinEDID.exe Operating System: MS Windows 98, 2000, XP Port Setup: Windows 98 => Don’t need setup Windows 2000, XP => Need to Port Setup. This program is available to LCD Monitor only.
- Page 15 3 47...
- Page 16 WIRING DIAGRAM P220 P201 P405 P501 P701 P904 S + S P702 P402 Socket P902 Signal Cable P302 P301 - 15 -...
- Page 21 2. NO CHARACTER NO CHARACTER TROUBLE IN CHECK P301, SIGNAL CABLE, IC302 PIN 5,6,7 PC SIGNAL CHECK TROUBLE IN IC302 PIN 1, 24, 23, 19, 20, 21 IC302, P301 PIN 18 (5V) ? CHECK IC303 PIN 1, 2, 3 TROUBLE IN PIN8 (8V), IC303 PIN 4 (80V) ?
- Page 23 4. NO VERTICAL DEFLECTION NO V-DEFLECTION (ONE HORIZONTAL LINE) CHECK TROUBLE IN IC601 Pin 3 (13V) ? T901 13V Line CHECK TROUBLE IN IC601 PIN 7 (45V)? T701 40V line CHECK TROUBLE IN IC401 PIN 33, 34 IC401 (SAWTOOTH WAVE)? TROUBLE IN IC601, V-CIRCUIT - 22 -...
- Page 24 5. TROUBLE IN DPM Stand-by/SUSPEND/ DPMS OFF MODE FAILURE CHECK CHECK PC, INPUT H/V SYNC SIGNAL IC401 (MICOM) (PC IS NOT GOING INTO DPM PIN 52, 53 (H/V INPUT) MODE) SIGNAL? NO H/V SYNC SIGNAL CHECK TROUBLE IN IC401 PIN 45, 46 X401, IC401 WAVEFORM? TROUBLE IN...
- Page 25 6. NO DEGAUSSING NO DEGAUSSING CHECK TROUBLE IN IC401 PIN 4 (5V)? IC401 (MICOM) CHECK TROUBLE IN Q953 COLLECTOR D953 VOLTAGE (0.5V)? CHECK TROUBLE IN P902? P902 TROUBLE IN CHECK RL901 RL901? TROUBLE IN TH901, DEGAUSSING COIL - 24 -...
- Page 26 7. H_Deflection Failure 1. Check IC401 Pins 39,40,41 IC401 Pin 18 waveform is right? 2. Replace IC401. Q719 drain Check Q720,50V LINE waveform is right? D710 Q705 drain Check Q704 waveform is right? Check 13V line. Check and replace T703 Q706 base, collector and Q706.Check DY connector waveforms are right?
- Page 27 9. TROUBLE IN H-LINEARITY UNBALANCED OF H-LIN. CHECK TROUBLE IN IC401 IC401 (MICOM) PIN 11,12,13 ? CHECK TROUBLE IN Q711~Q716? Q711 ~ Q716 CHECK TROUBLE IN L703? L703 Cs SIGNAL TABLE HORIZONTAL FREQUENCY(fH) 30K ~ 33.9K TROUBLE IN 34K ~ 38.9K C722, C723, C726, C729 39K ~ 43.9K 44K ~ 48.9K...
- Page 28 10. Abnormal H_Size The Voltage Repeat the troubleshooting waveform Q706 Collector Guide of H_deflection failure. is right? T701 pin 2 voltage Check D/D converter circuit is change with H frequency? Check IC401 B+ control circuit. 11. Side Pin or Trap Failure Check if AC Voltage of IC401 Pin 35 Check and replace IC401.
- Page 29 13. Tilt Failure Check tilt connector connection IC401 Pin 26 output duty varies with Check and replace IC401. different DAC values? Q501 Emitter output varies Check Q503,Q501,Q502. with different DAC values? Check and replace CRT. 14. V Size or Pos. Variation Failure IC401 Pin 33, 34 Check some parts around IC401.
- Page 30 15. High Voltage Failure Q719 drain Check Q719,Q720 waveform is right? Check 50V line Repeat the troubleshooting Q706 collecter waveform Guide of H_deflection failure. is right? Replace T701 Waveforms Q719, Drain Q706,Collector 16. ABL Failure Input full white pattern to monitor. IC302 Pin22 Check and replace IC302 input exists and varies...
- Page 31 17. Focus Failure IC401 Pin 24 Check and replace IC401. output are right? Q710 and parts around Replace failed part. are right? Some parts around T701 Replace failed part. are right? Check the connection between FBT Pin 12, CRT Socket PCB.
- Page 32 18. Micom Failure IC401 Pin 16 input is over Check Q903,D908,ZD902 4.2V? IC401 Pin 45 and 46 Check X401 inputs are right? Check and replace IC401 Pin 23 input is R451,C408 High Active? All in/output values are Replace IC401. right? Done.
- Page 33 20. User Control Failure Check connector Ass’y. IC401 Pins 27 and 28 Check and replace function key. inputs are right at each function? Check and replace IC401. Done. 21. Missing Color Proper Video levels are Check signal generator and on P301 Pin 1, 3 and 5. signal cable.
- Page 34 22. Visible Retrace Check white balance adjustment. G2 voltage is right? Check G2 control volume and FBT. Blank pedestal is on Check IC302 Pin 19, 20 and 21 of IC302 and related components. Check Q799 Is V_FLB and DC_bias on and related components.
- Page 35 24. Misconvergence Degauss the CDT Adjust Pole4,Pole6 Done to improve the misconvergence Change CRT and readjust convergence. Done. 25. Poor Focus Adjust focus VR. Aging monitor and Improved focus? check for focus change. Check focus leads from FBT to CRT Socket. Check the CRT Socket.
- Page 36 - 35 -...
- Page 37 3091TKC131D CABINET ASSEMBLY F730B BRAND C098 TCO03 3091TKC131C CABINET ASSEMBLY F730BY BRAND C098 NANO SILVER,TCO03 6318L17021A M41QEU423X51NDDH LG-PHILIPS DISPLAYS 70KHZ 29.1MM FLATRON TCO RTC 3809TKC042A BACK COVER ASSEMBLY 2ND FLATRON 3808TKC041A (17") 3043TKK103A TILT SWIVEL ASSEMBLY FB770H T060 B058 3043TKK103D TILT SWIVEL ASSEMBLY TILT SWIVEL ASSEMBLY...
- Page 38 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 MODEL : F730BL.KLRUQET 2005.02.23 LOC NO PART NO. DESCRIPTION/SPECIFICATON PART NO. DESCRIPTION/SPECIFICATON LOC NO C A P A C I T O R s C 4 1 9 0 C Q 2 2 2 1 N 4 0 9...
- Page 39 PART NO. DESCRIPTION/SPECIFICATON PART NO. DESCRIPTION/SPECIFICATON LOC NO LOC NO C 9 0 8 0 C E Z T B U 0 0 2 D 180UF 25.4*35 SMH/HC 400V M VNSN D 4 0 3 0 D S P T 0 0 0 2 9 A 1N4148M PCTRONIX TP DO34 100V 75VA B U L K 2000MA 4NSEC 0.025UA...
- Page 40 LOC NO PART NO. DESCRIPTION/SPECIFICATON LOC NO PART NO. DESCRIPTION/SPECIFICATON F B 3 0 7 6 2 1 0 T C E 0 0 3 B BRS3580B BO SUNG 3580MM RADIAL D 9 5 1 0 D R G F 0 0 1 5 0 A UF5404 GULF BK DO201AD 400V 3.0A F B 3 0 8 6 2 1 0 T C E 0 0 3 J...
- Page 41 PART NO. DESCRIPTION/SPECIFICATON PART NO. DESCRIPTION/SPECIFICATON LOC NO LOC NO R 3 0 5 0 R N 6 2 0 1 F 4 0 9 6.20K 1/6W 1% TA52 R 4 4 2 0 R N 3 9 0 1 F 4 0 9 3.90K 1/6W 1% TA52 R 3 1 4 0 R D 1 0 0 0 Q 6 0 9...
- Page 42 PART NO. DESCRIPTION/SPECIFICATON LOC NO LOC NO PART NO. DESCRIPTION/SPECIFICATON R 7 7 5 0 R X 3 9 0 2 J 6 0 9 39K OHM 1 W 5% TA52 S W 2 0 2 6 6 0 0 R 0 0 0 0 1 A "JTP1280F6 JEIL 12V DC 1MA R 7 8 2 0 R D 3 3 0 1 A 6 0 9...
- Page 45 Feb. 2005 P/NO : 3828TSL110E Printed in China...