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PART LIST

LCD-22XR7SN ver.

1.0

REF.No. PARTS No.

DESCRIPION

Q'TY REMARK

XI5QK26U105B

Front cabinet

XI6HU0060510

Key board

Speaker

Panel

1 CPT CLAA220WA01 032

XI6HU080110

Main board

XI5HK37WH02A

Back cabinet

XI6151087130

Stand

XI6HU0082010

Power board

XI6HA0061410

Back light board

XI5944034300

User manual

XI6010Y05601

Remote control

Only the parts in above list are used for repairing.
Other parts except the above parts can't be supplied.

PAR

LCD

LIS

Содержание LCD-22XR7SN

Страница 1: ...LCD TV SERVICE MANUAL LCD 22XR7SN PRODUCT CODE No REFERENCE No SM0915047 1 682 346 27 NTSC M FILE NO PRODUCT CODE No R ...

Страница 2: ...tructions Method of software upgrading Working principle analysis of the unit Block diagram IC block diagram Wiring diagram Troubleshooting guide Schematic diagram APPENDIX A Assembly list APPENDIX B Exploded View 1 3 6 12 13 14 17 18 21 CONTE ...

Страница 3: ...he power off immediately and do not move anything on the module lest it should cause fire or electric shock due to contact with the high voltage or short circuit 2 6 Should there be smoke abnormal smell or sound from the module please shut the power off at once Likewise if the screen is not working after the power is on or in the course of operation the power must be cut off immediately and no mor...

Страница 4: ...ance of picture residue on the screen as commonly called ghost shadow The extent of the residual picture varies with the maker of LCD screen This phenomenon doesn t represent failure This ghost shadow may remain in the picture for a period of time several minutes But when operating it please avoid displaying still picture in high brightness for a long time 3 Points for attention during installatio...

Страница 5: ...ter factory menu first enter ISP item of OPTION set ISP to 1 and you can begin to upgrade After upgrade finished it needs to set ISP back to 0 If the picture can t display when upgrading it needs to solder JB1 on the main board Please unsolder JB1 again after upgrading 3 1 Initialization Enter factory menu select OPTION EEPROM and HOTEL OPTION sub menu adjustment of items to see table1 Table1 sub ...

Страница 6: ...ite balance b Enter submenu of COLOR TEMP Select 9300k of color temperature c Fixed value of B OFF adjust R OFF and G OFF let the color coordinate of the second level be 285 293 and the brightness be about 3nit 6nit Fixed value of B GAIN adjust R GAIN and G GAIN let the color coordinate of seventh level be 285 293 Adjustment R OFF G OFF R GAIN and G GAIN repeatedly until the value of the two level...

Страница 7: ...minal Insert HDMI terminal input signal of 640 X 480 60 Hz signal and check if the display is normal and the HDCP is normal 4 5 check sound channel Check the speaker and headphone of each channel 4 6 other function check Check the turn on turn off timer asleep timer picture sound mode OSD freeze mute stereo SAP for America magic picture etc 4 7 presetting before ex factory Item Setting Item Settin...

Страница 8: ...rallel cable connects the PC and the upgrade instrument the VGA cable connects the TV and the upgrade instrument 2 The steps for upgrading software 1 Please confirm that the connection wires and the upgrade instrument are connected well before the software written and then power on the TV 2 Double click the icon ISP_TOOL to open it 3 Press Connect to connect TV if the connection is done successful...

Страница 9: ...ection wires and check if ISP item of the factory menu is set to 1 if not please set it to 1 4 After connection is done it needs to read the Binary document Press Read as shown below 5 Search the document needed to write in the Read check box ...

Страница 10: ...8 6 Select the document then the window will appear as shown below Select ...

Страница 11: ...9 7 Press Auto to select the writing function Select the items shown in the picture above a Read File a R R Read R d File d d n t ...

Страница 12: ...e File Area 8 Press Run to begin the writing program wait till the blue bar is complete After writing it will display OK If there is error appeared shown as below press Run again to rewrite the program till it is success b P c Ex ogram t ISP ...

Страница 13: ... writing process Note2 the writing speed can be adjusted as shown below Select Config then adjust Speed BAR the value is bigger the speed is faster But it is easier to appear error when increase the speed so it need to select a suitable speed according the PC Step 1 Step 2 ...

Страница 14: ... signals will also be sent to MST9U19A AV1 and YPbPr share one group of audio ports AV2 and S VIDEO share one group of audio ports The video and audio signals of VGA and HDMI will be sent to MST9U19A too The main IC NS2 MST9U19A is a high performance and fully integrated IC which can realize HDMI processing video demodulating video switch selection A D and D A conversion interlace de interlace pro...

Страница 15: ... R AV1 YPbPr L R AV2 L R TUNER TV V TV SIF L R AV OUT CVBS V AV OUT LCD TV CONTROLLER MST9U19A AUDIO AMP R2S15102 EDID 24C02 EEPROM FLASH PANEL SPEAKER EDID 24C02 AMP LM358 IF AMP R2S10401 HDCP KEY POWER MEG ATMEG8L 2 AMP SAW Block di gram AV A AV1 Y bPr L R ...

Страница 16: ...nput 51 CVBS output 63 64 VGA L R input 66 67 AV1 YPbPr L R input 68 69 AV2 S L R input 135 search station synchronizing check input 154 HDMI hot plug check output 145 standby control output 148 picture on off output 149 mute control output 72 73 L R output AV OUT 74 75 L R output amplifier 162 271 4 pairs differential signal and 1 pair clock signal output 131 SDA 132 SCL IC b ock diagram m ...

Страница 17: ...15 R2S10401 R2S10401 ...

Страница 18: ...16 1 2 VIF input 23 SIF input 7 TV CVBS output 10 TV SIF output 17 SDA 18 SCL R2S15102NP 5 11 L R input 1 15 L R output 13 mute control input 2 1 2 V 23 SI F inp inpu t ...

Страница 19: ...17 Wiring diagram main board key board power board panel backlight pins pins pins pins pins pins pins pins pins Wiri W ng d ag am s pins s ...

Страница 20: ...l Check STANDBY circuit of power supply board Press POWER button in the unit or sensor control and check the indicator Check if the PIN3 of XS14 on the main board is high level Check if XS15 pin 11 on main board is high level Check power supply board Check the backlight board yes no no red blue no yes Replace NS2 no yes Replace NS14 Trou T ble hooting no ...

Страница 21: ... again display picture Adjust main board again Which is no signal of channels Replace main board Check if 2VPP signal and noise wave of N101 PIN7 on the main board Check if output IF signal of TUNER pin11 is normal Replace TUNER Check IF circuit N101 no yes yes HDMI VGA YPRPB TV yes no no no yes Does display OSD menu in screen when press menu button yes no yes no 2 Ra 2 ster but no picture e wav w...

Страница 22: ... and 14 voltage of NV4 is normal Check power supply Check PIN5 and PIN11 output wave of NV4 Check PIN10 wave of N101 Check PIN11 wave of TUNER Replace TUNER Replace NV4 Replace NS2 Replace N101 no yes no yes yes yes no no 3 no 3 soun ...

Страница 23: ...main board ...

Страница 24: ...main board ...

Страница 25: ...main board ...

Страница 26: ...main board ...

Страница 27: ...main board ...

Страница 28: ...power ...

Страница 29: ...backlight ...

Страница 30: ...002 R2S15102NP 5271510201 Key board XI6HU0060510 Backlight board XI6HA0061410 Power board XI6HU0082010 Remote control XI6010Y05601 Panel XI5203227203 CLAA220WA01 032 RC Y56 0A APPENDIX A Main assembly LCD 22XR7SN MAIN COMPONENT AND IT S NO APP A NDIX A Main n assembly L D 22XR R7SN ...

Страница 31: ...LCD 22XR7SN ...

Страница 32: ...T OF EXPLODED VIEW NO DESCRIPTION 1 Front cabinet 2 Key board 3 Speaker 4 Panel 5 Main board 6 Back cabinet 7 Stand 8 Power board 9 Back light board 10 User manual 11 Remote control P PART LIS O EXP PLO ED VIE ...

Страница 33: ...1 CPT CLAA220WA01 032 5 XI6HU080110 Main board 1 6 XI5HK37WH02A Back cabinet 1 7 XI6151087130 Stand 1 8 XI6HU0082010 Power board 1 9 XI6HA0061410 Back light board 1 10 XI5944034300 User manual 1 11 XI6010Y05601 Remote control 1 Only the parts in above list are used for repairing Other parts except the above parts can t be supplied L PAR LCD P LIS ...

Страница 34: ...tion before setup and follow the steps below precisely 3 The wall to be mounted should be made from solid materials Only use accessories supplied by the manufacturer 4 Very carefully handle the unit during setup We are not liable for any damage or injury caused by mishandling or improper installation 5 Be sure to place the unit on a stable and soft platform which is strong enough to support the un...

Страница 35: ......

Страница 36: ...Nov 2008 ...

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