29
Main UNIT:
No picture on the display (2)
Does not the picture come out when VHF/UHF is received?
Check +5V_tuner/VCCK/DDRV/AV33/DV33/+3V3SB
is applied to Tuner and U2102 or not.
Is the DIF signal output from pin (10) and pin (11) of
TUNER
(TU9101)?
Is the DIF signal sent to pin (58) and pin (59) of IC
U2102?
Refer to
“
The picture doesn't appear in all modes.
”
Check each power IC and peripheral
components are correct or not.
Check the tuner and its peripheral circuits.
Replace as required.
Check IC U2102 its peripheral circuits.
NO
NO
NO
YES
YES
YES
Summary of Contents for LC-32LE440U
Page 1: ...SERVICE MANUAL LCD COLOR TELEVISION MODEL LC 32LE440U ...
Page 3: ...2 ...
Page 4: ...3 ...
Page 6: ... 2 DIMENSIONS 5 ...
Page 10: ...9 1 Remove the 5 screws and disconnect 4 cables Detach the Main board ASSY as Fig 9 Fig 9 ...
Page 45: ...44 BOTTOM ...
Page 46: ...45 2 POWER SCHEMATIC DIAGRAM POWER BOARD WITH TOP BOTTOM VIEW Top Layer ...
Page 47: ...46 Bottom Layer ...
Page 48: ...47 3 KEY UNIT PRINTED WIRING BOARD 4 IR UNIT PRINTED WIRING BOARD ...
Page 49: ...48 CHAPTER 8 SCHEMATIC DIAGRAM 1 MAIN SCHEMATIC DIAGRAM 01 System POWER ...
Page 50: ...49 02 MT5389 ...
Page 51: ...50 03 DDR3 DRAM Flash ...
Page 52: ...51 04 Peripheral IR Keypad ESD ...
Page 53: ...52 05 HDMI ...
Page 54: ...53 06 VGA RS 232 USB ...
Page 55: ...54 07 YPbPr ...
Page 56: ...55 08 Audio amp ...
Page 57: ...56 09 Headphone line out SPDIF ...
Page 58: ...57 10 LVDS 11 Tuner ...
Page 68: ......
Page 71: ...70 4 PACKING PARTS ...
Page 73: ...72 ...
