21
CHAPTER 4.TROUBLESHOOTING TABLE
[1]TROUBLE SHOOTING TABLE
YES
NO
TEREMINAL
The sound is not emitted from the speaker though the picture has come out.
No sound output in all models?
Is the audio signal output of pin (96)
(AOSDATA0), pin (95) (AOBCK), pin (94)
(AOLRCK) and pin (93) (AOMCLK) of IC
U2102 normal?
NO
YES
NO
YES
NO
YES
Check IC U2102 and its peripheral circuits.
Is audio signal input to pin (6) (AOSDATA0),
pin (7) (AOBCLK), pin (8) (AOLRCK) and
pin (5) (AOMCLK) of IC U6101 (AMP)?
Check the line between IC U2102 and IC
U6101.
Is MUTE circuit [YDA_MUTE] normal ?
Check the PD#. (R6130, Q6101, R6134, etc.)
Is the audio signal output of pin (1, 2) (L-ch)
and pin (3, 4) (R-ch) of CN6101
(AOUDIO-CONNECTOR) normal?
Check IC U6101 and its peripheral circuits.
Check Speaker Box (right and left) and wire
harness.
TEREMINAL
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 ...