31
No sound (during the reception of TV broadcasting)
Does not the sound go out though the picture has come out when UHF/VHF is received?
MAIN UNIT:
YES
NO
Is the DIF signal output from pin (10) and pin (11) of
TUNER(TU9102)?
NO
Check the tuner and its peripheral circuits. Replace as
required.
Is the DIF signal sent to pin (58) and pin (59) of IC
U2102?
Check IC U2102 its peripheral circuits.
YES
Refer to
“
No sound output in all modes
”
.
Summary of Contents for Aquos LC-39LE440U
Page 1: ...SERVICE MANUAL LED COLOR TELEVISION MODEL LC 39LE440U LC 50LE440U ...
Page 3: ...2 ...
Page 4: ...3 ...
Page 5: ...4 CHAPTER 1 OPERATION MANUAL 1 SPECIFICATIONS ...
Page 11: ...10 Remove the REAR COVER Assy SOP 1 2 ...
Page 12: ...11 3 4 ...
Page 15: ...14 4 Remove the 1screws Detach the Key Pad ASSY as Fig 12 Fig 12 ...
Page 53: ...52 3 WIRING DIAGRAM ...
Page 55: ...54 BOTTOM LC 39LE440U LC 50LE440U ...
Page 56: ...55 2 POWER SCHEMATIC DIAGRAM POWER BOARD WITH TOP BOTTOM VIEW Top Layer ...
Page 57: ...56 Bottom Layer ...
Page 58: ...57 3 KEY UNIT PRINTED WIRING BOARD 4 IR UNIT PRINTED WIRING BOARD ...
Page 59: ...58 CHAPTER 8 SCHEMATIC DIAGRAM 1 MAIN SCHEMATIC DIAGRAM 01 System POWER ...
Page 60: ...59 02 MT5389 ...
Page 61: ...60 03 DDR3 DRAM Flash ...
Page 62: ...61 04 Peripheral IR Keypad ESD ...
Page 63: ...62 05 HDMI ...
Page 64: ...63 06 VGA RS 232 USB ...
Page 65: ...64 07 YPbPr ...
Page 66: ...65 08 Audio amp ...
Page 67: ...66 09 Headphone line out SPDIF ...
Page 68: ...67 10 LVDS 11 Tuner ...
Page 70: ...69 2 Standby Control DC DC ACD Circuit fig 8 Fig 8 Fig 9 ...
Page 80: ...79 2 CABINET PARTS LC 39LE440U ...
Page 81: ...80 ...
Page 82: ...81 LC 50LE440U ...
Page 83: ...82 ...
Page 85: ...84 4 PACKING PARTS LC 39LE440U 场 爵 ふ 琌 础 玂 腞 纒 1 1 狾 郴 ノ 玂 腞 纒 8ㄓ 溃 ňゎ 笲 块 硚 い オ 禲 の 玂 臔 辊 跑 ...
Page 87: ...86 LC 50LE440U ...
