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COLOR MONITOR
SERVICE MANUAL
CHASSIS NO. : CA-115
FACTORY MODEL: T710PG
MODEL:
*(
) ID LABEL Model No.
CAUTION
BEFORE SERVICING THE UNIT,
READ THE SAFETY PRECAUTIONS IN THIS MANUAL.
MENU
SELECT
Brightview
Website:http://biz.LGservice.com
E-mail:http://www.LGEservice.com/techsup.html
T710P
(T710PG-EL)
T710PH
(T710PG-HL)
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Table of Contents
Related Manuals for LG Flatron T710P
Summary of Contents for LG Flatron T710P
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Page 1: Color Monitor
Website:http://biz.LGservice.com E-mail:http://www.LGEservice.com/techsup.html COLOR MONITOR SERVICE MANUAL CHASSIS NO. : CA-115 FACTORY MODEL: T710PG MODEL: T710P (T710PG-EL) T710PH (T710PG-HL) ) ID LABEL Model No. CAUTION BEFORE SERVICING THE UNIT, READ THE SAFETY PRECAUTIONS IN THIS MANUAL. MENU SELECT Brightview... -
Page 2: Table Of Contents
CONTENTS SPECIFICATIONS ........... 2 ADJUSTMENT ............12 SAFETY PRECAUTIONS ........3 TROUBLESHOOTING GUIDE ......14 TIMING CHART ............4 EXPLODED VIEW........... 24 OPERATING INSTRUCTIONS ........ 5 REPLACEMENT PARTS LIST ....... 26 CONTROL LOCATIONS ......... 6 PIN CONFIGURATION........... 32 WIRING DIAGRAM ..........7 SCHEMATIC DIAGRAM ......... -
Page 3: Safety Precautions
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 4: Timing Chart
TIMING CHART VIDEO SYNC << Dot Clock (MHz), Horizontal Frequency (kHz), Vertical Frequency (Hz), Horizontal etc... (µs), Vertical etc... (ms) >> Sync Total Period Video Active Sync Duration Front Porch Blanking Time Back Porch Mode Resolution Frequency Time (B) Sort Polarity –... -
Page 5: Operating Instructions
OPERATING INSTRUCTIONS FRONT VIEW REAR VIEW ID Label MENU SELECT Brightview AC Power Socket See Front Control Panel Power ON/OFF Button Signal Connector Front Control Panel MENU Button SELECT Button Power (DPMS) Indicator MENU SELECT Brightview Buttons Brightiew Button Power Button 1. -
Page 6: Control Locations
CONTROL LOCATIONS VR701 : High Voltage Regulation off-set Voltage Adjustment(4.6V) VR901: B Adjustment (50V Line) - 6 -... -
Page 7: Wiring Diagram
WIRING DIAGRAM P201 P905 P402 P405 P501 P904 P702 P701 Socket P902 Signal Cable P302 P301 - 7 -... - Page 8 DISASSEMBLY 1. TILT/SWIVEL & BACK COVER REMOVAL 1) Set the monitor face downward. 2) Carefully remove the Tilt/Swivel by pulling it upward. 3) Pressing the latch (b), Back cover by pushing it upward. 4) Release the latch (c). (See Tip Spec.) 5) Slide the Back Cover away from the Front Cabinet of the monitor.
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Page 9: Block Diagram
BLOCK DIAGRAM Dynamic Focus Static Focus - 9 -... -
Page 10: Description Of Block Diagram
DESCRIPTION OF BLOCK DIAGRAM 1. Line Filter & Associated Circuit. 6. Horizontal and Vertical Oscillation. This is used for suppressing noise of power input line This circuit generates the horizontal pulse and the flowing into the monitor and/or some noise generated in vertical pulse by taking the H and V sync signal. - Page 11 16.Video Pre-Amp Circuit 17.Video Output Amp Circuit. This circuit amplifies the analog video signal from 0- This circuit amplifies the video signal which comes from 0.7V to 0-4V.It is operated by taking the clamp,R,G,B the video pre-amp circuit and amplified it to applied the drive and contrast signal from the Micom(IC401).
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Page 12: Adjustment
ADJUSTMENT GENERAL INFORMATION All adjustment are thoroughly checked and corrected 3) EEPROM → ALL CLEAR → Y(Yes) command. when the monitor leaves the factory, but sometimes <Caution> Do not run this procedure unless the several adjustments may be required. EEPROM is changed. All data in EEPROM (mode Adjustment should be following procedure and after data and color data) will be erased. - Page 13 19) COLOR ADJ. → LUMINANCE → ABL command. ± 0.05FL of 9) Adjust SUB-Brightness command to 0.4 20) Adjust ABL to 32 ± 1FL of the luminance. the raster luminance. 21) After push the “ENTER” key, and “COMMAND → 10) COMMAND → PRESET START → Y(Yes) command. PRESET EXIT →...
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Page 14: Troubleshooting Guide
TROUBLESHOOTING GUIDE 1. NO POWER NO POWER (POWER INDICATOR OFF) CHECK TROUBLE IN FUSE FUSE OK? (F901) CHECK C908 VOLTAGE? TROUBLE IN (AC120V: 160VDC, D900 AC220V: 304VDC) CHECK IC901 PIN 6 TROUBLE IN WAVEFORM (SQUARE WAVE IC901 COMES OUT?) CHECK TROUBLE IN D941, D942, D951, D941, D942, D951,... - Page 15 2. NO CHARACTER NO CHARACTER CHECK TROUBLE IN IC302 P302 5V LINE PIN 9(5V) ? TROUBLE IN CHECK PC SIGNAL, IC302 PIN 5, 6, 7? P301 SIGNAL CABLE CHECK TROUBLE IN IC302 PIN 20, 19, 18 ? IC302 CHECK TROUBLE IN IC303 PIN 4 (80V) P303 15V LINE/ PIN 8 (15V) ?
- Page 16 3. NO RASTER NO VIDEO (POWER INDICATOR ON) CHECK AMBER DPM MODE POWER INDICATOR (NO H and/or V SYNC) GREEN or AMBER? GREEN CHECK TROUBLE IN D712 ANODE D712 (-157V)? CHECK TROUBLE IN G1 VOLTAGE? Q799 (-55V~-150V) CHECK TROUBLE IN CDT HEAT D941, Q942, Q941 VOLTAGE? (6.3V)
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Page 17: No Horizontal Deflection
4. NO HORIZONTAL DEFLECTION NO H-DEFLECTION (ONE VERTICAL LINE) CHECK TROUBLE IN Q706? Q706 CHECK TROUBLE IN B + VOLTAGE 50V LINE (50V)? CHECK T701(FBT) PIN 2 TROUBLE IN (31KHZ 60V, Q719, Q720, D710 80KHZ 140V) ? CHECK TROUBLE IN Q701 COLLECTOR Q701 WAVEFORM? -
Page 18: Trouble In H-Linearity
5. TROUBLE IN H-LINEARITY UNBALANCED OF H-LIN. CHECK TROUBLE IN IC401 IC401 (MICOM) PIN 5, 6, 7 ,23 ? CHECK TROUBLE IN Q711~Q718? Q711 ~ Q718 CHECK TROUBLE IN L703? L703 TROUBLE IN C722, C723, C726, C729 Cs SIGNAL TABLE (Normal CDT) Cs SIGNAL TABLE (High brightness) HORIZONTAL HORIZONTAL... - Page 19 6. NO VERTICAL DEFLECTION NO V-DEFLECTION (ONE HORIZONTAL LINE) CHECK TROUBLE IN IC601 PIN 3 R603 15V LINE (15V)? TROUBLE IN CHECK HIGH-VOLTAGE OUT IC601 PIN 7 CIRCUIT(FBT), (40V)? D721, R606 CHECK TROUBLE IN IC701 PIN 12, 13? IC701 TROUBLE IN IC601, V-CIRCUIT - 19 -...
- Page 20 7. TROUBLE IN OSD (ENTER BUTTON MUST BE PRESSED.) NO OSD CHECK TROUBLE IN IC301 B + 5V LINE (5V) ? DC 5V CHECK TROUBLE IN IC301 PIN 5, 10 IC601 PIN8 (V-FBP), WAVEFORM? T701 40V LINE (H-FBP) Pin 10 Pin 5 CHECK TROUBLE IN...
- Page 21 8. TROUBLE IN DPM (NO OFF MODE.) OFF MODE FAILURE CHECK CHECK PC, IC401 (MICOM) INPUT H/V SYNC SIGNAL (PC IS NOT GOING INTO PIN 31, 32 (H/V INPUT) DPM OFF MODE) SIGNAL? H/V SYNC CHECK TROUBLE IN IC401 PIN 13 X401 WAVEFORM? 12MHz...
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Page 22: No Degaussing
9. NO DEGAUSSING NO DEGAUSSING (DEGAUSS ON THE OSD MENU MUST BE PRESSED.) CHECK TROUBLE IN IC401 PIN 19 IC401 (MICOM) (0V)? CHECK TROUBLE IN Q953 COLLECTOR Q953 VOLTAGE? DC 15V CHECK TROUBLE IN P902 ? P902 CHECK TROUBLE IN RL901? RL901 TROUBLE IN... - Page 23 10. NO TILT (NO ROTATION ) NO TILT (NO ROTATION) CHECK TROUBLE IN IC401 PIN21 IC401 ( MI COM) WAVE FORM ? CHECK TROUBLE IN 15V LINE 15V LINE, 6.3V LINE AND 6.3V LINE ? CHECK TROUBLE IN Q503 EMITTER Q501~Q503 VOLTAGE ? TROUBLE IN...
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Page 25: Exploded View Parts List
CABINET ASSEMBLY, E710PH BRAND C079 SILVER SPRAY-For Europe, U.K(T710PG-HL) 6318L17012A CDT(CIRC), M41QEE903X 01N6UD LG-PHILIPS 70KHZ 29.1MM FLAT TCO -For Europe(T710PG-EL) 6318L17014A CDT(CIRC), M41QEE903X 01NHUD LG-PHILIPS 85KHZ 29.1MM FLAT TCO -For Europe, U.K(T710PG-HL) 3809TKC050A BACK COVER ASSEMBLY, E710BH 046 EQ54(8C358) 3043TKK108A... -
Page 26: Replacement Parts List
REPLACEMENT PARTS LIST CAUTION: BEFORE REPLACING ANY OF THESE COMPONENTS, READ CAREFULLY THE SAFETY PRECAUTIONS IN THIS MANUAL. * NOTE SAFETY Mark AL ALTERNATIVE PARTS DATE: 2003. 01. 27. DATE: 2003. 01. 27. *S *AL LOC. NO. PART NO. DESCRIPTION / SPECIFICATION *S *AL LOC. - Page 27 DATE: 2003. 01. 27. DATE: 2003. 01. 27. *S *AL LOC. NO. PART NO. DESCRIPTION / SPECIFICATION *S *AL LOC. NO. PART NO. DESCRIPTION / SPECIFICATION C743 0CK1510W515 150PF 500V K B TR D303 0DS141489AB 1N4148 TP GRANDE DO-34 500MW C744 0CE107CQ650 100UF SHL 200V M FM7.5 BULK...
- Page 28 GDZ5.1B TP GRANDE DO34 500MW Q701 0TR200009AB KTC200-Y TP KEC TO92 NPN ZD903 0DZ120009BF GDZJ12B TP GRANDE DO34 0.5W Q706 0TR558900BA 2SC5589(LG,W/M) BK TOSHIBA T Q707 0TR127009AA KTA1270-Y(KTA562TM) TP KEC T Q708 0TR127009AA KTA1270-Y(KTA562TM) TP KEC T Q709 0TR141300AB KTD1413 BK KEC TO220I S NPN...
- Page 29 DATE: 2003. 01. 27. DATE: 2003. 01. 27. *S *AL LOC. NO. PART NO. DESCRIPTION / SPECIFICATION *S *AL LOC. NO. PART NO. DESCRIPTION / SPECIFICATION R302 0RD0752Q609 75 1/4W(3 5% TA52 R430 0RD1000Q609 100 1/4W(3 5% TA52 R303 0RD0752Q609 75 1/4W(3 5% TA52 R431 0RD1000Q609...
- Page 30 DATE: 2003. 01. 27. DATE: 2003. 01. 27. *S *AL LOC. NO. PART NO. DESCRIPTION / SPECIFICATION *S *AL LOC. NO. PART NO. DESCRIPTION / SPECIFICATION R736 0RD3301A609 3.3K OHM 1/2 W(7.0) 5.00% TA R818 0RN2202F409 22K 1/6W 1% TA52 R736-1 0RD3301A609 3.3K OHM 1/2 W(7.0) 5.00% TA...
- Page 31 DATE: 2003. 01. 27. *S *AL LOC. NO. PART NO. DESCRIPTION / SPECIFICATION SC901 6200TJB001H 02MD1 DELTA BK W/O GND SG301 6918TAT005E MTAS-201M GIGA AXIAL TAPING SG302 6918TAT005E MTAS-201M GIGA AXIAL TAPING SG303 6918TAT005E MTAS-201M GIGA AXIAL TAPING SG304 6918TAT005F MTAS-301M GIGA AXIAL TAPING SG305 6918TRT005A...
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Page 32: Pin Configuration
PIN CONFIGURATION TDA4866J Current Driven Vertical Deflection Booster SYMBOL OUTB TDA4866J OUTB OUTA V FB GUARD OUTA FEEDB GUARD FEEDB Pin Configuration M24C08 Serial I C BUS EEPROM SYMBOL DESCRIPTION PSDIP8 (BN) 0.25mm Frame E0-E2 Chip Enable Input Serial Data Address Input/Output Serial Clock Write Control SO8 (MN) -
Page 33: Schematic Diagram
SCHEMATIC DIAGRAM NOTICE Since this is a basic schematic diagram. DDC-SDA IIC-SDA The value of components and some partial connection are sucject to be changed for improvement without notice. IIC-SCL DDC-SCL - 33 - - 34 -... -
Page 34: Printed Circuit Board
PRINTED CIRCUIT BOARD 1. CONTROL BOARD (Component Side) 2. CONTROL BOARD (Solder Side) 5. VIDEO BOARD (Component Side) 3. MAIN BOARD (Component Side) 4. MAIN BOARD (Solder Side) 6. VIDEO BOARD (Solder Side) - 35 - - 36 -... - Page 35 Feb. 2003 P/NO : 3828TSL091N Printed in Korea...