22" LCD Color Monitor
Lenovo L222 Wide
1
Service
Service
Service
Description
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SAFETY NOTICE
ANY PERSON ATTEMPTING TO SERVICE THIS CHASSIS MUST FAMILIARIZE HIMSELF WITH THE
CHASSIS AND BE AWARE OF THE NECESSARY SAFETY PRECAUTIONS TO BE USED WHEN SERVICING
ELECTRONIC EQUIPMENT CONTAINING HIGH VOLTAGES.
Table Of Contents…………………………………………...1
Revision List…………………………………………………2
Important Safety Notice………………………………….…3
1. Monitor Specification..............................………........4
2. LCD Monitor Description…………………………….......5
3. Operation Instruction…................................................6
3.1. General Instructions...........................…...........6
3.2. Control Button…........................................................6
3.3. OSD Menu….............................................................7
4. Input/Output Specification............……………............10
4.1. Input Signal Connector............………….................10
4.2. Factory Preset Display Modes..........................11
43. Panel Specification.....………………..................11
5. Block Diagram…........................................................15
5.1. Software Flow Chart……………………………….....15
5.2. Electrical Block Diagram………………………......17
6. Schematic……………......................................19
6.1. Main Board.............................................19
6.2. Power Board....……....................................23
6.3. Key Board.................................................25
7. PCB Layout..…………......................................26
7.1. Main Board………........................................26
7.2. Power Board....……....................................27
7.2. Key Board……………....................................28
8. Maintainability……….......................................29
8.1. Equipments and Tools Requirement..............29
8.2. Trouble Shooting………….............................30
9. White-Balance, Luminance adjustment............36
10. Monitor Explode View…………………..........38
11. BOM List………………………………............39
12. Different Part List………………………............53
CAUTION: USE A SEPARATE ISOLATION TRANSFOMER FOR THIS UNIT WHEN SERVICING
Summary of Contents for L222 Wide Flat Panel Monitor
Page 4: ...22 LCD Color Monitor Lenovo L222 Wide 4 1 Monitor Specifications h t t p w w w w j e l n e t ...
Page 7: ...22 LCD Color Monitor Lenovo L222 Wide 7 3 3 OSD Menu h t t p w w w w j e l n e t ...
Page 8: ...22 LCD Color Monitor Lenovo L222 Wide 8 OSD functions h t t p w w w w j e l n e t ...
Page 9: ...22 LCD Color Monitor Lenovo L222 Wide 9 h t t p w w w w j e l n e t ...
Page 13: ...22 LCD Color Monitor Lenovo L222 Wide 13 2 TFT LCD h t t p w w w w j e l n e t ...
Page 28: ...22 LCD Color Monitor Lenovo L222 Wide 28 7 3 Key Board 715G2891 B h t t p w w w w j e l n e t ...
Page 38: ...22 LCD Color Monitor Lenovo L222 Wide 38 10 Monitor Exploded View h t t p w w w w j e l n e t ...