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Description of A/V(MAIN and SUB PCB) and POWER
- Main TP (Input: Color Bar Pattern)
TP116: Horizontal sync (output of IC112)
TP117: Vertical sync (output of IC112)
4-2-6. Video Enhancer and LVDS transmitter (for all inputs)
Outputs of IC140 are inputted to IC149(video signal enhancer) which improves picture quality greatly.
Outputs of IC149 are inputted to IC150 which is a LVDS transmitter. The converted LVDS signal is
transmitted to the digital board.
- Main IC
A. IC149: Video enhancer (Input: 24bit digital RGB, H, V Output: 24bit digital RGB, H, V)
B. IC150: LVDS transmitter (Input: 24bit digital RGB, H, V Output: LVDS signal)
- Main TP (Input: Color Bar Pattern)
TP204: Horizontal sync (output of IC149), refer to TP184
TP205: Vertical sync (output of IC149), refer to TP187
Summary of Contents for DPN-4274NHS
Page 15: ...14 3 BLOCK DIAGRAM...
Page 16: ...15 4 Description of A V MAIN and SUB PCB and POWER 4 1 Block Diagram of main IC and TP...
Page 43: ...42 Main PCB Trouble Diagnosis If above signal do not appear replace MAIN PCB...
Page 55: ...54 11 STRUCTURE OF PDP SET...
Page 58: ...57 COMPONENTS PICTURE REMARK 1h Digital PKG 2 MAIN BOARD 3 SUB BOARD 4 POWER BOARD...
Page 59: ...58 STRUCTURE OF PDP SET COMPONENTS PICTURE REMARK 5 FRONT MASK 6 FILTER GLASS 7 BACK COVER...
Page 60: ...59...
Page 61: ......
