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Question posted by jerusalem012 on March 11th, 2016

Lg Flatron Tv Model # 21fx5rf

Lg Flatron Color Tv Model# 21fx5rf Which Goes From Color To Black And White . What Is The Cause Of This..

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Answer #1: Posted by BusterDoogen on March 11th, 2016 4:53 PM

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BusterDoogen

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Possible loose cables. It can do the same with a composite cables. Black and white requires less bandwidth. So if it loses bandwidth it will default to black and white to have some picture. Check all connections.

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Related LG FLATRON Manual Pages

Service Manual - Page 1

Website:http://biz.LGservice.com COLOR MONITOR SERVICE MANUAL CHASSIS NO. : LP69G MODEL: M198WA (M198WA-BMH.A**MLP) M228WA (M228WA-BMH.A**MLP) *( ) **Same model for Service CAUTION BEFORE SERVICING THE UNIT, READ THE SAFETY PRECAUTIONS IN THIS MANUAL.

Service Manual - Page 3

PRECAUTION WARNING FOR THE SAFETY-RELATED COMPONENT. • There are some special components used in LCD monitor that are pressed cause short and may burn or take fire. If the wires are important for a long time. • The module not be exposed to the direct sunlight. &#...

Service Manual - Page 4

... other end of the insulated clip lead to the picture tube anode button, using an insulating handle to help reduce the incidence of component damage caused by static by "drawing an arc". 3. Use only a grounded-tip soldering iron to damage ES devices. 6. Remember: Safety First. Connecting a test substitute in this service...

Service Manual - Page 6

... insulated 20-gauge jumper wire from both sides of the pattern break and locate the nearest component that bonds the foil to the circuit board causing the foil to repair the defective copper pattern at connections other side. Circuit Board Foil Repair Excessive heat applied to the copper foil of any...

Service Manual - Page 7

... is applied to 19"/22" Wide Monitor TV used LP69G chassis. 2. General Specification(TV) 4-1. Test method 3.1 Performance : LGE test method followed 3.2 Demanded other specification Safety : CE, IEC Specification EMC : CE, IEC (1) Power Voltage : Standard input voltage (100~240V@, 50/60Hz) *Standard Voltage of each products is marked by models. (2) Specification and performance of each...

Service Manual - Page 8

... LCD Module 410.4 (H) x 256.5 (V) 427.2 (H) x 277.4 (V) x17.0 (D) 0.285mm (H) x 0.285mm (V) x RGB RGB vertical stripe 16.7M color LVDS Hard coating(3H) & Anti-glare(Haze 25) Normally White 4 CCFL (4 lamps) R.T : 1.3ms + R.T : 3.7ms Unit Remark mm mm Typ mm Typ. -8- Typ. Item 1. Active Display area 3. Type Separate Sync., Digital 2 Operating Frequency Analog Horizontal 28...

Service Manual - Page 9

.../75 U/D 70/70 2 Luminance RGB-PC 250 Luminance (cd/m2) AV/TV 200 Component White Luminance Uniformity 75 3 Contrast Ratio CR RGB-PC/ AV/TV/ 500 Component 4 CIE Color Coordinates WHITE Wx Wy RED Rx Ry GREEN Gx Typ. -0.03 Gy BLUE Bx By WHITE Wx Wy RED Rx Ry Typ. Item 1. Back light Unit 11...

Service Manual - Page 16

...Model : 60 in Pattern Generator Pattern : 29 in Pattern Generator (MSPG-925 SERISE) [gray pattern that left & right is black and center is white... Reserve after operation : Above 30 Minutes 6) Adjustment equipments : Color Analyzer(CA-210 or CA- 110), Pattern Generator (MSPG-925L...Offset Adjustment - Convert to 19"/ 20"/ 22" LCD Monitor TV which can confirm the ADC values from "0x00~0x05" ...

Service Manual - Page 17

... - Select input TV and check below item * In Gumi Factory 04 - Input signal : (1024 x 768 @ 60Hz) Full white 255/255 gray level (100 IRE, Model : 60, Pattern : 4 at MSPG925L) (3) Set PSM : Dynamic / CSM : Cool (4) Confirm whether x = 0.285±0.03, y = 0.293±0.03 or not. 4.4. Confirm color coordinate of component (1) Set Input to RGB. - - We...

Service Manual - Page 18

Select input DVI model 122(1680*1050@60hz), 64Gray pattern and whether picture is displayed or not *M208WA / M228WA - HDCP SETTING (High... When pressing IN-STOP key by SVC Remote controller. Select input DVI model 112(1440*900@60hz), 64 Gray Scale pattern and whether picture is displayed or not. 4.7. Check if Power LED Color and Power Consumption operate as standard. (1) Set Input to RGB and ...

Service Manual - Page 19

... COMPONENT PC-RGB DVI HDMI M198WA-BTH 1 0 1 1 1 1 1 0 REMARK WXGA+ *M208WA/M228WA-BMH Tool Option 7810 Resolution Module TV VIDEO COMPONENT PC-RGB DVI HDMI M208WA-BMH / M228WA-BMH 2 0 1 1 1 1 1 0 REMARK WSXGA * Area Option (M198WA/M208WA/M228WA-BMH) Change by suffix : Area Option : South America - ...

Service Manual - Page 20

...: That's OK if the value of adding 128-bytes Data is "1" & Input change to " TV" AUTO_INPUT F4 00 0,1,2,4 0 : TV CHANGE 1 : AV1 2 : AV2 3 : Component 4 : RGB 5 : DVI 5.2 EEPROM ... 3F Bright adjustment CONTRAST 12 00 00 - 64 Luminance adjustment AUTO_COLOR_ F1 00 02 Auto COLOR Adjustment ADJUST CHANGE_COLOR F2 00 0,1,2,3 0: COOL _TEMP 1: NORMAL 2: WARM 3: USER FACTORY_DEFAULT ...

Service Manual - Page 21

Port Setup a) Copy "UserPort.sys" file to LCD Monitor only. 1. This program is available to "c:\WINNT\system32\drivers" folder b) Run Userport.exe 2. f) Click Exit button. - 21 - EDID Read & Write 1) Run WinEDID.exe c) Remove all ...

Service Manual - Page 22

... S.Am 1 0 1 Description of operation - ETC Video Signal Generator Control Line IBM Compatible PC 15 10 5 PARALLEL PORT Not used RS232C PARALLEL OFF ON 5V C F VGS A MONITOR B V-SYNC ST POWER Power inlet (required) 220 Power Select Switch (110V/220V) Power LED E ST Switch F V-Sync On/Off Switch (Switch must be ON.) Figure...

Service Manual - Page 27

... Check the input/output of Change defect part, Check the X100 IC1104, IC1105. No Raster on AV(Scart in Video, S-Video) Signal Pass 7. No Rasteron TV(RF) Signal Pass Repeat [A, B] process. Pass Check input source cable and jack. - 27 - Pass Fail Check 5V of TU600. 5.

Service Manual - Page 30

... Generates DC Voltage (5V,15V) to LGE9689/9789AD-LF. 6. CVBS/S-Video/Component/RGB/DVI(TMDS) This Block Selects input Video signals (like Contrast, Brightness, Sharpness, Color, tint signals including Adaptive Comb Filter. 2) Audio Signal This block analyzes audio input signal through IIC line. Tuner Micom controls this IC. - 30 - DESCRIPTION OF...

Service Manual - Page 31

... TRANSFER 100KHz 15V OUTPUT RECTIFIER AND FILTER 5V GND PWM CONTROL CIRCUIT PRIMARY PHOTO -COUPLER ISOLATION SIGNAL COLLENT- Energy Transfer. This part function is also monitor by this part. 5. EMI components. This part function is to the primary through a bridge rectifier and a bulk capacitor. 3. This part function is to collect the...

Service Manual - Page 33

... DRIVER 22.0INCH 1680X1050 300CD COLOR 72% 16/10 800:1 160/160 5ms 4LAMPS LG PHILIPS LCD 300 ABJ32323201 Cabinet Assembly, M198W . 19" M198W CABINET ASSY BLACK ABJ32411701 Cabinet Assembly, M228WA M228WA_CABINET ASS'Y 21" M228WA CABINET ASS'Y (22") 310 MES35944701 Indicator, MOLD PMMA NON MX8W PMMA NON MX8W Model IR lens 320 MES35721501 Indicator...

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