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
Содержание LC-32LE440U
Страница 1: ...SERVICE MANUAL LCD COLOR TELEVISION MODEL LC 32LE440U ...
Страница 3: ...2 ...
Страница 4: ...3 ...
Страница 6: ... 2 DIMENSIONS 5 ...
Страница 10: ...9 1 Remove the 5 screws and disconnect 4 cables Detach the Main board ASSY as Fig 9 Fig 9 ...
Страница 13: ...12 Step4 Remove BASE SUPPORT Remove the 4 screws and 2 cable clamps Detach the BASE SUPPORT as Fig 15 Fig 15 ...
Страница 44: ...43 CHAPTER 7 PRINTED WIRING DIAGRAM 1 MAIN UNIT PRINTED WIRING BOARD LC 32SV40U LC 42SV50U LC 46SV50U TOP ...
Страница 45: ...44 BOTTOM ...
Страница 46: ...45 2 POWER SCHEMATIC DIAGRAM POWER BOARD WITH TOP BOTTOM VIEW Top Layer ...
Страница 47: ...46 Bottom Layer ...
Страница 48: ...47 3 KEY UNIT PRINTED WIRING BOARD 4 IR UNIT PRINTED WIRING BOARD ...
Страница 49: ...48 CHAPTER 8 SCHEMATIC DIAGRAM 1 MAIN SCHEMATIC DIAGRAM 01 System POWER ...
Страница 50: ...49 02 MT5389 ...
Страница 51: ...50 03 DDR3 DRAM Flash ...
Страница 52: ...51 04 Peripheral IR Keypad ESD ...
Страница 53: ...52 05 HDMI ...
Страница 54: ...53 06 VGA RS 232 USB ...
Страница 55: ...54 07 YPbPr ...
Страница 56: ...55 08 Audio amp ...
Страница 57: ...56 09 Headphone line out SPDIF ...
Страница 58: ...57 10 LVDS 11 Tuner ...
Страница 68: ......
Страница 71: ...70 4 PACKING PARTS ...
Страница 73: ...72 ...