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1、 SERVICE MANUAL COLOR MONITOR (105G7 Series)THESE DOCUMENTS ARE FOR REPAIR SERVICE INFORMATION ONLY.EVERY REASONABLE EFFORT HAS BEEN MADE TO ENSURE THE ACCURACY OF THIS MANUAL;WE CANNOT GUARANTEE THE ACCURACY OF THIS INFORMATION AFTER THE DATE OF PUBLICATION AND DISCLAIMS LIABILITY FOR CHANGES,ERROR
2、S OR OMISSIONS.THIS MONITOR IS LEAD-FREE PRODUCT.MANUFACTURE DATE:SEP.2005 h t t p:/j d w x z l w.c o m/?f r o m u s e r=华盛维修家电维修资料网，免费下载各种维修资料 1 TABLE OF CONTENTS CONTENTS PAGE1.SPECIFICATIONS.2 2.PRECAUTION AND NOTICES.4 2-1 SAFETY PRECAUTIONS.4 2-2 PRODUCT SAFETY NOTICE.4 2-3 SERVICE NOTES.5 2-4
3、HIGH VOLTAGE WARNING.5 3.OPERATING INSTRUCTIONS.6 4.ADJUSTMENT.7 4-1 ADJUSTMENT CONDITIONS AND PRECAUTIONS.7 4-2 MAIN ADJUSTMENTS.7 4-3 ADJUSTMENT METHOD.7 4-4 EDID CONTENTS.11 5.CIRCUIT DESCRIPTION.11 6.TROUBLE SHOOTING CHART.14 6.1 NO RASTER,CRT RELATIVE CIRCUIT PROBLEMS.14 6.2 ABNORMAL DISPLAY.16
4、 6.3 NO BLANKING.17 6.4 HOR./OSC/DEF/HV CIRCUIT FAULT.17 6.5 ABNORMAL HORIZONTAL DEFLECTION.18 6.6 ABNORMAL VERTICAL SCANNING.19 6.7 SIDE-PINCUSHION Distortions.19 6.8 POOR FOCUS19 6.9 POWER SUPPLY TROUBLE SHOOTING CHART.20 6.10 LEAD-FREE PRODUCT21 7.MECHANICAL OF CABINET FRONT DIS-ASSEMBLY.22 8.BOM
5、 LIST.23 9.BLOCK DIAGRAM.40 9.1 BLOCK DIAGRAM(SMPS).40 9.2 IC BLOCK DIAGRAMS 41 10.PCB LAYOUT.46 11.SCHEMATIC DIAGRAM.48 h t t p:/j d w x z l w.c o m/?f r o m u s e r=华盛维修家电维修资料网，免费下载各种维修资料 2 1.SPECIFICATIONS FOR S554B-1SERIES COLOR MONITOR CRT:Type 15(13.8”viewable diagonal area)CPT M36AES83X01(L),
6、LPD M36EDR320X304/6F01L;Dot Pitch 0.28 mm,Shadow Mask,None Glare.Viewable image Size:35CM(13.8”)diagonal Display Color:Unlimited Colors External Controls:Power On/Off,OSD key,Function knob:Contrast,Brightness,and Degauss.Horizontal Size,Horizontal Position,Vertical Size,Vertical Position,Pincushion,
7、Pincushion Balance,Trapezoid,Parallelogram,Tilt,Horizontal Moire,Vertical Moire,ViewMatch color,ViewMeter,OSD Position,Languages,Memory Recall,Zoom.Input Video Signal:Timing Timing 15 Timing 16 Timing 17 Resolution 720*400 640*480 640*480 H(KHz)31.327 31.469 43.3 V(Hz)69.616 59.943 85.00 Timing Timi
8、ng 29 Timing37 Resolution 800*600 1024*768 H(KHz)53.674 48.36 V(Hz)85.061 60.00 Display Size:Horizontal Display Size,Primary Preset 270 mm+/-4 mm Horizontal Display Size,Other Presets 270 mm+/-4 mm Vertical Display Size,Primary Preset 202 mm+/-4 mm Vertical Display Size,Other Presets 202 mm+/-4 mm D
9、isplay Size Adjustment All preset modes shall expand to full screen size.Scanning Frequencies:Horizontal:30KHz 54KHz Vertical:50 Hz 120 Hz Factory Preset Timings:6 User Timings:8 h t t p:/j d w x z l w.c o m/?f r o m u s e r=华盛维修家电维修资料网，免费下载各种维修资料 3 Mis-convergence:Center:0.3 mm Max.Corner:0.4 mm Ma
10、x.Power Source:Switching Mode Power Supply AC 90-264 VAC 50/60 Hz ENVIRONMENTAL Operating Temperature 0C to+40C Storage Temperature-40C to+60C Operating Relative Humidity 5%to 95%Non-Condensing Storage Relative Humidity 5%to 95%Non-Condensing Operating Altitude-400 meters to+3000 meters Storage Alti
11、tude-400 meters to+12,000 meters Gross Weight:13.0 kg Dimensions Monitor:Carton:438mm(W)x 385 mm(H)x 455 mm(D)Monitor:360 mm(W)x 362 mm(H)x 384 mm(D)External Connection:15 Pin D-type Connector AC Power Cord Regulations:North America(M):UL/cUL,DHHS,TUV/S(Argentina)FCC-B,NOM,ICES-003,BSMI,PSB Internat
12、ional:CB,MPRII.Power Saving Operation:ON Mode 70 Watts OFF 5 Watts h t t p:/j d w x z l w.c o m/?f r o m u s e r=华盛维修家电维修资料网，免费下载各种维修资料 4 2.PRECAUTIONS AND NOTICES 2-1 SAFETY PRECAUTIONS 1.Observe all caution and safety related notes located inside the display cabinet.2.Operation of the display with
13、 the cover removed,may cause a serious shock hazard from the display power supply.Work on the display should not be attempted by anyone who is not thoroughly familiar with precautions necessary when working on high voltage equipment.3.Do not install,remove or handle the picture tube in any manner un
14、less shatter-proof goggles are worn.People who are not so equipped should be kept away while handling picture tube.Keep picture tube away from the body while handling.4.The picture tube is constructed to limit X-RAY radiation to 0.5 mR/HR.For continued protection,use the designated replacement tube
15、only,and adjust the voltages so that the designated maximum rating at the anode will not be exceeded.5.Symbol“!”means safety relative parts.The use of substitute replacement parts which do not have the same characteristics as specified in the parts list may create shock,fire or explode etc.6.Symbol“
16、”means X-ray relative parts.Before replacing any of these components please read the parts list in this manual carefully to avoid creating higher anode voltage or x-ray.Especially for sealed controls,such as VR901 VR902,VR701 and FBT screen VR etc,which were sealed by the manufacturer once their opt
17、imum position has been set,please dont dismantle them as your likes,otherwise you will break or damage the component.If you need replace the parts with sealed control,please adjust the relative VR to make sure the B+voltage under 59.0+0.2Vdc at 640 x480 60Hz and well seal it with A+B glue or equival
18、ent,which you can not move away with one screw driver.7.Before returning a serviced display to the customer,a thorough safety test must be performed to verify that the display is safe to operate without danger or shock.Always perform an AC leakage current check on the exposed metallic parts of the c
19、abinet,such as screw heads.Test method for current leakage is described as follow.(a)Plug the AC line cord directly into rated AC outlet(do not use a line isolation transformer during this check).(b)Use an AC voltmeter having 5000 ohms per volt or with more sensitivity in the following manner:Connec
20、t a 1500 ohms 10 Watt resistor,paralleled by a 0.15UF,AC type capacitor between a known good earth ground(water pipe,conduit,etc.)and the exposed metallic parts simultaneously.Measure the AC voltage across the combination of 1500 ohms resistor and 0.15UF capacitor.(c)Reverse the AC plug at the AC ou
21、tlet and repeat AC voltage measurements for each exposed metallic part.(d)Voltage measured must not exceed 0.5 volts RMS.This corresponds to 0.35 milliamp AC.Any value exceeding this limit constitutes a potential shock hazard and must be corrected immediately.2.2 PRODUCT SAFETY NOTICE Many electrica
22、l and mechanical parts in this chassis have special safety visual inspections and the protection afforded by them cannot necessarily be obtained by using replacement components rated for higher voltage,wattage,etc.Before replacing any of these components read the parts list in this manual carefully.
23、The use of substitute replacement parts which do not have the same safety characteristics as specified in the parts list may create shock,fire,X-RAY radiation or other hazards.h t t p:/j d w x z l w.c o m/?f r o m u s e r=华盛维修家电维修资料网，免费下载各种维修资料 5 2.3 SERVICE NOTES 1.When replacing parts or circuit b
24、oards,clamp the lead wires around terminals before soldering.2.When replacing a high wattage resistor(more than 1/2W of metal oxide film resistor)in circuit board,keep the resistor about 10mm(1/2 in)away from circuit board.3.Keep wires away from high voltage or high temperature components.4.Keep wir
25、es in their original position so as to reduce interference.2.4 HIGH VOLTAGE WARNING Operation of monitor outside of cabinet or with back removed may cause a serious shock hazard.Work on this model should only be performed by those who are thoroughly familiar with precautions necessary when working o
26、n high voltage equipment.Exercise care when servicing this chassis with power applied.Many B plus and high voltage terminals are exposed which,if carelessly contacted,can cause serious shock or result in damage to the chassis.Maintain interconnecting ground lead connections between chassis and pictu
27、re tube dag when operating chassis.Certain HV failures can increase X-ray radiation.Monitor should not be operated with HV levels exceeding the specified rating for the chassis type.The maximum operating HV specified for the chassis used in this monitor is 25.5KV 1KV With a line voltage of 120/240 V
28、AC.Higher voltage may also increase possibility of failure in HV supply.It is important to maintain specified values of all components in the horizontal and high voltage circuits and anywhere else in the monitor that could cause a rise in high voltage or operating supply voltages.No changes should b
29、e made to the original design of the monitor.Components shown in the shaded areas on the schematic should be replaced with exact factory replacement parts.The use of unauthorized substitute parts may create a shock,fire or other hazard.To determine the presence of high voltage,use accurate,high impe
30、dance,HV meter connected between second anode lead and CRT dag grounding device.When servicing the High Voltage System,remove static charge from it by connecting a 20K ohm resistor in series with an insulated wire(such as a test probe)between picture tube dag and 2nd anode lead.(AC line cord disconn
31、ected from AC power outlet.)The picture tube used in this monitor employs integral implosion protection.Replace with tube of the same type number for continue safety.Do not lift picture tube by the neck.Handle the picture tube only after discharging the high voltage completely.h t t p:/j d w x z l w
32、.c o m/?f r o m u s e r=华盛维修家电维修资料网，免费下载各种维修资料 6 3.OPERATING INSTRUCTIONS This procedure gives you instructions for installing and using the 9Glr color display.1.Position the display on the desired operation and plug the power cord into a convenient AC outlet.Three-wire power cord must be shielded a
33、nd is provided as a safety precaution as it connects the chassis and cabinet to the electrical conduit ground.If the AC outlet in your location does not have provisions for the grounded type plug,the installer should attach the proper adapter to ensure a safe ground potential.2.Connect the 15-pin co
34、lor display shielded signal cable to your signal system device and lock both screws on the connector to ensure firm grounding.The connector information is as follow:15-Pin Color Display Signal Cable 3.Apply power to the display by turning the power switch to the ON position and allow about thirty se
35、conds for display tube warm-up.The Power-On indicator lights when the display is on.4.With proper signals feed to the display,a pattern or data should appear on the screen,adjust the brightness and contrast to the most pleasing display.5.This monitor has power saving function following the VESA DPMS
36、.Be sure to connect the signal cable to the PC.6.If your 9Glr Series color display requires service,it must be returned with the power cord.161115510PIN NO.DESCRIPTION PIN NO.DESCRIPTION 1.RED 9.NC 2.GREEN 10.GND 3.BLUE 11.SYNC.GND 4.GND 12.SDA 5.GND 13.HORIZ.SYNC 6.GND-R 14.VERT.SYNC(VCLK)7.GND-G 1
37、5.SCL 8.GND-B h t t p:/j d w x z l w.c o m/?f r o m u s e r=华盛维修家电维修资料网，免费下载各种维修资料 7 4.ADJUSTMENT 4.1 ADJUSTMENT CONDITIONS AND PRECAUTIONS 1.Approximately 30 minutes should be allowed for warm up before proceeding.2.Adjustments should be undertaken only on those necessary elements since most of the
38、m have been carefully preset at the factory.4.2 MAIN ADJUSTMENTS NO.FUNCTION LOCATION DESIGNATION 1.14.5V ADJ PCB-MAIN VR901 2.B+ADJ PCB-MAIN VR902 3.SCREEN ADJ FLY BACK TRANS T402 4.FOCUS ADJ FLY BACK TRANS T402 -MENU PCB-MAIN SW102 -UP PCB-MAIN SW103 5.FUNCTION ADJ -DOWN PCB-MAIN SW104 -EXIT PCB-M
39、AIN SW105 4.3 ADJUSTMENT METHOD 14.5V,B+&HV voltage adjustment:A.Chroma-2000 Signal generator or PC equivalent set mode2:,VGA 640X480 pattern 1.0.B.Connect a DC Volt meter between TP901(or the equivalent point)and ground,then adjust VR901 to be 14.2VDC.C.Connect a DC Volt meter between TP902(or the
40、equivalent point)and ground,then adjust VR902 to be 85 VDC.Factory preset Timings Adjustment:A.Press MENU Key to show OSD window press Up or Down Key to switch the functional controls.B.Press the Up Key to select the ZOOM function,then press the MENU Key.While do not release the MENU Key until the O
41、SD window changed to the Factory preset window.C.The Factory preset window contains the following functional controls.Select one of the control.Then press the Up/Down Key to adjust its value for the optimum picture.h t t p:/j d w x z l w.c o m/?f r o m u s e r=华盛维修家电维修资料网，免费下载各种维修资料 8 H-SIZE H-CENTE
42、R V-SIZE V-CENTER PINCUSHION PARALLELOGRAM PIN-BALANCE TRAPEZOID ROTATION AB ABL ADJ SB NO USE CONTRAST BRIGHTNESS R-BIAS G-BIAS R-BIAS R-GAIN G-GAIN B-GAIN 6500 COLOR TEMPERATURE 9300 COLOR TEMPERATURE SW NO USE H-MOIRE REDUCE V-MOIRE REDUCE MOIRE DISABLE NO USE NO USE HL NO USE V-LINEARITY V-LINEA
43、RITY BALANCE TOP CORNER BOTTOM CORNER LH NO USE HP MAX-HSIZE MODIFY MAX-VSIZE MODIFY MAX-TRAPEZOID MODIFY NO USE DEGAUSS OSD EXIT RETURN TIME RECORD B/I B/I ON/OFF D.To switches the input signal to the other Timing Mode.Please follow step C D to get the optimum picture.E.Select the RETURN function a
44、nd press the MENU Key,then the Factor Preset window will be returned to the original OSD window.(users operating condition)F.The setting data of the CONTRAST,BRIGHTNESS,PIN-BALANCE,PARALLELOGRAM,ROTATION,COLOR TEMPERATURE are common mode saved in the memory.Dont needed adjust it individual at every
45、timing Mode and save in the memory.h t t p:/j d w x z l w.c o m/?f r o m u s e r=华盛维修家电维修资料网，免费下载各种维修资料 9White Balance adjustment(Bias,Gain,ABL):A.Bias(Raster luminance and cut off)adjustment:(a)Set mode 5 800600 Fh:53KHz full white pattern.(b)To make the adjustment condition is under the Factory pr
46、eset window.Same as step 2-C.(c)Warm up more than 20 minutes.(d)Change pattern to mode 5 Raster pattern(only Raster,no video),Brightness set to maximum.Contrast set to min.,G-Bias 40,then adjust FBT screen VR.R-Bias.B-Bias to make Y=3.5 0.2cd/m,x=265 5,y=290 5.(e)Raster cut off adjustment:adjustment
47、 the Brightness makes the Y=0.080.02cd/m,then save the adjustment data to 9300 and 6500.B.Gain(window white luminance)adjustment:(a)Set mode 5 800600 Fh:53KHz window white pattern(100mm*100mm window).(b)Brightness set to raster just cutoff and set the contrast to max.(c)Adjust G-Gain ,B-Gain,R-Gain,
48、to make color temperaturem Y=1402 cd/m.x=283 5,y=297 5.then save to 9300.(d)Adjust G-Gain ,B-Gain,R-Gain,to make color temperaturem Y=1402 cd/m.x=313 5,y=329 5.then save to 6500.C.Recheck item A&B to make sure both of them in spec.Finally select OSD function to the 9300K function,then press to make
49、the setting data saved in the memory.D.ABL(Full white luminance)adjustment:(a)Set mode 2 800600 Fh:53KHz full white pattern.(b)Image Size:H:2604mm V:1954mm.(c)Brightness set to raster just cut off and set the contrast to max.(d)Adjust AB to the luminance at 85 138cd/m.Focus Adjustment:A.Set mode 5 8
50、00600 Fh:53KHz with character full page.B.Adjust brightness to center and contrast to max.C.Then adjust focus VR to a fine vertical and horizontal line.Purity Adjustment A.Be sure that the display is not being exposed to any external magnetic fields.B.Ensure that the spacing between the Purity,Conve