19
Note:
1. Use Minolta CA-210 for color coordinates and luminance check.
2. Before adjusting, all color analyzers (CA-210) should be coordinates with a
same reference TV set.
3. Luminance>=240 cd/m2 in the center of screen when Brightness control at
100,Contrast control at 100,Backlight control at 100.(For LC-50LE442U ,Test
color mode: User mode)
[2] SERVICE MODE
Enter factory mode menu: press
MENU
+ Numeric keys “
3481
” to enter factory
mode.
You can press “RETURN” key to back to normal main menu.
[3] FACTORY MODE AUTOMATION BEHAVIOR
For factory checking channels convenient, so entered factory mode will auto install
factory pre-channels to instead of user’s channels table, after exited Factory mode,
the pre-channels will be cleared.
Summary of Contents for LC-50LE442U
Page 1: ...SERVICE MANUAL LED COLOR TELEVISION MODEL LC 50LE442U ...
Page 3: ...2 ...
Page 4: ...3 ...
Page 5: ...4 CHAPTER 1 OPERATION MANUAL 1 SPECIFICATIONS ...
Page 7: ...6 50 400 400mm Metric 8 14mm Setting the TV on the wall LC 50LE442U ...
Page 44: ...43 3 WIRING DIAGRAM ...
Page 45: ...44 CHAPTER 7 PRINTED WIRING DIAGRAM 1 MAIN UNIT PRINTED WIRING BOARD TOP LC 50LE442U ...
Page 46: ...45 BOTTOM LC 50LE442U ...
Page 47: ...46 2 POWER UNIT PRINTED WIRING BOARD Top Layer ...
Page 48: ...47 Bottom Layer ...
Page 49: ...48 3 KEY UNIT PRINTED WIRING BOARD 4 IR UNIT PRINTED WIRING BOARD ...
Page 50: ...49 CHAPTER 8 SCHEMATIC DIAGRAM 1 MAIN SCHEMATIC DIAGRAM 01 System POWER ...
Page 51: ...50 02 MT5389 ...
Page 52: ...51 03 DDR3 DRAM Flash ...
Page 53: ...52 04 Peripheral IR Keypad ESD ...
Page 54: ...53 05 HDMI ...
Page 55: ...54 06 VGA RS 232 USB ...
Page 56: ...55 07 YPbPr ...
Page 57: ...56 08 Audio amp ...
Page 58: ...57 09 Headphone line out SPDIF ...
Page 59: ...58 10 LVDS 11 Tuner ...
Page 61: ...60 2 Standby Control DC DC ACD Circuit fig 8 Fig 8 Fig 9 ...
Page 68: ...67 2 CABINET PARTS LC 50LE442U ...
Page 69: ...68 ...