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CONTENTS ADJUSTMENT ...................................................... 10 TROUBLESHOOTING GUIDE .............................. 12 EXPLODED VIEW................................................... 22 REPLACEMENT PARTS LIST ............................... 24 PIN CONFIGURATION........................................... 29 PACKING AND ACCESSORIES ............................ 31 SCHEMATIC DIAGRAM ......................................... 32 PRINTED CIRCUIT BOARD...................................
SAFETY PRECAUTIONS SAFETY-RELATED COMPONENT WARNING! There are special components used in this color monitor which are important for safety. These parts are marked on the schematic diagram and the replacement parts list. It is essential that these critical parts should be replaced with the manufacturer's specified parts to prevent X-radiation, shock, fire, or other hazards.
TIMING CHART VIDEO B A E C D SYNC F << Dot Clock (MHz), Horizontal Frequency (kHz), Vertical Frequency (Hz), Horizontal etc... (µs), Vertical etc... (ms) >> Mode 1 2 3 4 5 6 7 8 9 H/V Sort Sync Polarity Frequency Total Period (E) Video Active Time (A) Blanking Time Sync Duration (D) (B) Back Porch (F) Front Porch (C) H – 37.500 26.667 20.317 6.349 2.032 3.810 0.508 V – 75.000 13.333 12.800 0.533 0.080 0.427 0.027 H – 31.469 31.778 25.422 6.356 3.813 1.907 0.
OPERATING INSTRUCTIONS FRONT VIEW REAR VIEW ColorealTM See Front Control Panel AC Power Socket Power ON/OFF Button Signal Connector Front Control Panel ColorealTM 4 1. Power/LED 2 3 4. 1 Select Launches on-screen displays, selects functions and adjustments, and exits menus and On-Screen Display. Controls power to the monitor. The LED on the power button is illuminated when the power is on. 5. Hot Key 2. Right Adjustment Left Adjustment Just select left adjustment key without OSD display.
P402 P501 S S+ AC Socket T1 Signal Cable P301 WIRING DIAGRAM P201 P702 P405 P902 P302 P303 -6- FBT P701
< OSD Control > H.V 80V MENU + ColorealTM Signal Cable H-Sync Sig V-Sync Sig POWER Heater ( 6.3V ) R G B I2C DATA(SDA) I2C CLOCK(SCL) 15V CUT OFF IC (IC304) LM2480 R/G/B Drive/Contrast Cut-Off X-RAY Protection Circuit Degaussing Circuit E2PROM (IC402) I2C H/V Sync Processor ( IC701 ) TDA4857 15V I2C Vout 2 Line Filter DPM CONTROL CIRCUIT H-DRV 15V 6.
DESCRIPTION OF BLOCK DIAGRAM 1. Line Filter & Associated Circuit. This is used for suppressing noise of power input line flowing into the monitor and/or some noise generated in this monitor flowing out through the power input line. That is to say, this circuit prevents interference between the monitor and other electric appliances. 3) The Micom sets operating mode and offers the controlled data. (H-size, H-position, V-size, ... etc.) 4) The controlled data of each mode is stored in itself.
15. H & V Blanking and Brightness Control. Blanking circuit eliminates retrace line by supplying negative pulse to the G1 of the CRT. And Brightness circuit is used for control of the screen brightness. 16. Image Rotation (Tilt) Circuit. This circuit corrects the tilt of the screen by supplying the image rotation signal to the tilt coil which is attached near the deflection yoke of the CRT. 18. Video Pre-Amp Circuit. This circuit amplifies the analog video signal from 0-0.7V to 0-4V.
ADJUSTMENT GENERAL INFORMATION 7) Adjust tilt as arrow keys to be the best condition. 8) DIST. ADJ. → BALANCE command. 9) Adjust parallelogram as arrow keys to be the best condition. 10) Adjust balance of pin-balance as arrow keys to be the best condition. 11) DIST. ADJ. → FOS. ADJ command. 12) Adjust V-SIZE as arrow keys to 234±2mm. 13) Adjust V-POSITION as arrow keys to center of the screen. 14) Adjust H-SIZE as arrow keys to 312±2mm. 15) Adjust H-POSITION as arrow keys to center of the screen.
14) Set Brightness is cut-off(0.06FL) and Contrast to Max position. 15) Set SUB-CONTRAST Max 127(7F) (decimal) position. 16) Set B-DRIVE to 90(5A); LG CDT at DRIVE of the alignment program. (TECO CDT: B-DRIVE 100(64)) 17-1) Adjust R-DRIVE and G-DRIVE command to white balance x=0.283±0.003 and y=0.298±0.003 at FullWhite on the White Balance Meter with PC arrow keys. 17-2) Display color 15,0 window pattern 5Box 50x50mm at mode 8. 18) Adjust SUB-CONTRAST command to 50±1FL at B/Raster 0.06FL.
TROUBLESHOOTING GUIDE 1.
2.
3. NO RASTER NO VIDEO (POWER INDICATOR ON) CHECK POWER INDICATOR GREEN or AMBER? AMBER DPM MODE (NO H and/or V SYNC) GREEN CHECK D712 ANODE (-157V)? NO TROUBLE IN D712 NO TROUBLE IN Q799 NO TROUBLE IN D941, Q942, Q941 YES CHECK G1 VOLTAGE? (-55V~-150V) YES CHECK CDT HEAT VOLTAGE? (6.
4.
5. TROUBLE IN H-LINEARITY UNBALANCED OF H-LIN. CHECK IC401 PIN 5, 6, 7 ? NO TROUBLE IN IC401 (MICOM) NO TROUBLE IN Q711 ~ Q716 NO TROUBLE IN L703 YES CHECK Q711~Q716? YES CHECK L703? Cs SIGNAL TABLE YES TROUBLE IN C722, C723, C726, C729 HORIZONTAL FREQUENCY(fH) 30K 34K 39K 44K 48K 52K 58K 62K 66K - 16 - ~ ~ ~ ~ ~ ~ ~ ~ ~ 33.9K 38.9K 43.9K 47.9K 51.9K 57.9K 61.9K 65.
6.
7. TROUBLE IN OSD NO OSD (ENTER BUTTON MUST BE PRESSED.
8. TROUBLE IN DPM OFF MODE FAILURE CHECK IC401 (MICOM) PIN 31, 32 (H/V INPUT) SIGNAL? YES (NO OFF MODE.) NO CHECK PC, (PC IS NOT GOING INTO DPM OFF MODE) INPUT H/V SYNC SIGNAL H/V SYNC CHECK IC401 PIN 13 WAVEFORM? TROUBLE IN X401 NO 5V YES 24MHz CHECK IC401 (MICOM) PIN 2, 3 ? NO (DPMF: 0V) TROUBLE IN IC401 (MICOM) SEE DPM TABLE YES CHECK B+ LINE (6.
9. NO DEGAUSSING NO DEGAUSSING CHECK IC401 PIN 19 (0V)? (DEGAUSS ON THE OSD MENU MUST BE PRESSED.
10. NO TILT (NO ROTATION ) NO TILT (NO ROTATION) CHECK IC401 PIN21 WAVE FORM ? NO TROUBLE IN IC401 (MICOM) YES CHECK 15V LINE AND 6.3V LINE ? NO TROUBLE IN 15V LINE, 6.
EXPLODED VIEW 5 3 9 7 6 - 22 - 8 2 B A 4 10 12 11 13 1 11
EXPLODED VIEW PARTS LIST Ref. No. Description Part No. 3091TKC078A CABINET ASSEMBLY, CQ771G COMPAQ C072 TCO99 S7500 (PE1165T) 1 3091TKC078B CABINET ASSEMBLY, CQ771G COMPAQ 072 MPR-II S7500(PE1165), CV7500(PE1165U), MV7500(PE1165U, PE1165) 6318L17006A CDT(CIRC), M41LFQ803X 55NLUD LG-PHILIPS 70KHZ 29.1MM FST TCO S7500 (PE1165T); Northern Hemisphere 6318E17002A CDT(CIRC), M41LRS102XX112 (Z) TECO 70KHZ 29.
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 *S *AL LOC. NO. PART NO. DATE: 2002. 04. 15. DESCRIPTION / SPECIFICATION *S *AL LOC. NO. PART NO. DATE: 2002. 04. 15.
*S *AL LOC. NO. PART NO. DATE: 2002. 04. 15. DESCRIPTION / SPECIFICATION *S *AL LOC. NO. PART NO. DATE: 2002. 04. 15.
*S *AL LOC. NO. D962 D971 ZD201 ZD202 ZD203 ZD301 ZD302 ZD401 ZD402 ZD404 ZD405 ZD406 ZD407 ZD410 ZD411 ZD701 ZD702 ZD705 ZD901 ZD902 PART NO. DATE: 2002. 04. 15. DESCRIPTION / SPECIFICATION 0DRGS00090A 0DR100009DA 0DZ560009AG 0DZ560009AG 0DZ560009AG 0DZ560009AG 0DZ560009AG 0DZ560009AG 0DZ560009AG 0DZ560009AG 0DZ560009AG 0DZ560009AG 0DZ560009AG 0DZ560009AG 0DZ560009AG 0DZ110009CF 0DZ560009AG 0DZ510009BE 0DZ560009AG 0DZ510009BE 31GF6L-5701 GENERAL SEMICONDUC RGP10J TP GULF SEMICONDUCTOR L GDZJ5.
*S *AL LOC. NO. R306 R307 R310 R311 R312 R314 R315 R316 R317 R318 R319 R320 R321 R322 R323 R324 R327 R328 R329 R330 R331 R332 R333 R334 R335 R336 R337 R340 R341 R342 R343 R344 R345 R346 R347 R348 R388 R389 R390 R401 R402 R403 R404 R405 R406 R407 R408 R409 R410 R412 R413 R414 R415 R416 R417 R418 R419 R421 R422 R423 R430 R431 PART NO.
*S *AL LOC. NO. R737 R738 R740 R741 R742 R743 R744 R745 R746 R747 R748 R749 R750 R751 R752 R753 R754 R755 R756 R757 R758 R759 R759 R760 R761 R762 R763 R764 R766 R768 R771 R772 R773 R773 R775 R778 R779 R782 R784 R789 R793 R797 R798 R799 R801 R801 R802 R803 R805 R806 R808 R809 R813 R814 R816 R818 R819 R821 R822 R823 R824 R831 PART NO.
PIN CONFIGURATION TDA4866J Current Driven Vertical Deflection Booster PIN INA 1 INB 2 SYMBOL 1 INA 2 INB 3 VP 4 OUTB 5 GND 6 OUTA 7 VFB 8 GUARD 9 FEEDB Vp 3 6J OUTB 4 86 A4 TD GND 5 TDA4866J OUTA 6 VFB 7 GUARD 8 FEEDB 9 9 1 Pin Configuration M24C08 Serial I2C BUS EEPROM SYMBOL PSDIP8 (BN) 0.
Autosync Deflection Controller HFLB 1 32 FOCUS XRAY 2 31 HSMOD BOP 3 30 HPLL2 BSENS 4 29 HCAP BIN 5 28 HREF BDRV 6 27 HBUF PGND T D A 4 8 5 7 TDA4857 32 7 26 HPLL1 HDRV 8 25 SGND XSEL 9 TDA4857 24 VCAP VCC 10 23 VREF EWDRV 11 22 VAGC VOUT2 12 21 VSMOD 1 VOUT1 13 20 i.
SCHEMATIC DIAGRAM IIC-SDA IIC-SCL DDC-SDA DDC-SCL NOTICE Since this is a basic schematic diagram. The value of components and some partial connection are sucject to be changed for improvement without notice.
PRINTED CIRCUIT BOARD 1. CONTROL BOARD (Component Side) 2. CONTROL BOARD (Solder Side) 3. MAIN BOARD (Component Side) 4.
