LG 32LV2400 / LC320EXG-RDA2-KR1 Service Manual ▷ View online
CONFIDENTIAL – DO NOT COPY
Page 9-6
File No. SG-0000036
Yes
N0
N0
N0
Yes
Yes
N0
Yes
(TV_SIDE,
AUDIO)
IS
NOT
DISPLAY
CORRECTLY
Start
Input signal good?
1. Check Audio source
2. Check the player of source
Input correct?
1. Check signal of Main Board
2. Check amplifier (
U51)
Check amplifier OK?
END
Check signal correct?
1.
Check MT5376 audio out ,R578
& R580
1. Check 12V of U51
CONFIDENTIAL – DO NOT COPY
Page 10-1
File No. SG-0000036
Chapter 10 Block Diagram
System Block Diagram
CONFIDENTIAL – DO NOT COPY
Page 10-2
File No. SG-0000036
Power Tree
PWR_19V
Q2
J7
+12V
U12,U16
+5VSB
LVDS_VDD
+5V_TUNER
U21
U10
TU4
P12V
TFB1
U4
VGL
VGH
VDD
VCC
FB13
AV_3V3
Q29,FB17
+3V3SB
VCCK
U6
AVDD33_DAC
FB14
DV33
U9
U52
AV125
U8
AV33
PWR_LED
DV33_TMDS
L77
DDRV
U702
LEDDRV
L84
L52
VLED1
VLED2
U703
Q30
AMPVCC_AP
L54
AMP_VCC
AUD_Vref
1/2
AMPVCC_OP
U7
+12V_EN
LVDS_POWER_ON
DV33
EN10
3V3_EN
F2
F4
CONFIDENTIAL – DO NOT COPY
Page 11-1
File No. SG-0000034
Chapter 11 Spare Parts List
PART NO
DESCRIPTION
Qty
LOC
REMARK
022070202065 SW TACT 6*6mm 90' 160g SFKHHLV1724 L-F
8
SW1,SW2,SW3,SW4,S
W5,SW6,SW7,SW8
028054000313 X'TAL 54MHZ 49S 30PPM 10PF 40ohm -20~80'C LF
1
Y1
030012093150 D-SUB FEMALE 90' 15P 3ROW (1216-004-15S-1EF) L-F
1
P5
030062000130 USB CONN. A TYPE 90' (3AL04S-305-ZC) L-F
1
P1
030064000070 OPTO CONN. Transmitter (JST1221) L-F
1
P11
030203500380 PHONE JACK 3.5 耳 5P 90' BLK (WTJ-035-04AB-XL) L-F
2 P12,P3
030290500071 RCA JACK 1R 5IO 90'(GBRWR)(WTJ-032-55V2B-01A) LF
1
P2
030310017607 CONN B TO FPC 0.5mm 60P 90' SMD LK(196283-60041)LF
2
TCN1,TCN2
030410000320 CONN HDMI 19P 90' SMD WITH SPRING LF
2
P7,P8
032040000220 POWER CORD 1800mm 125V UL/CSA 90' LF
1
032040000230 POWER CORD 1800mm 125V UL/CSA 90' LF
1
036020101040 PWR INDUCTOR 10uH 6A 10*10(EM-100M08V01)LF
2
L46,L47
036020220420 PWR IND. 22uH 4A ( SLF12575T-220M4R0-PF) LF
4
L704,L705,L706,L707
036020220720 PWR Inductor 22uH 2.5A (SLF10155T-220M2R5-TPF) LF
4
L36,L41,L44,L45
036020479520 PWR IND. 4.7uH 3.8A (VLC6045T-4R7M) LF
2
L42,L43
036021220120 PWR IND. 22uH 2.5A(VLP8040T-220M) LF
2
TL1,TL2
043000016615 IC CD74HC4052PWR 16PIN TSSOP L-F
1
U43
043010109088 IC DUAL OP AMP NJM4558M-TE3_PB SO8(DMP8) L-F
1
U50
043030113011 IC EEPROM 16K AT24C16BN-SH-T SOIC 8PIN LF
1
U14
043030130011 IC EEPROM 8K AT24C08BN-SH-T SOIC 8PIN LF
1
TU5
043030139045 IC SERIAL FLASH 64M MX25L6406EM2I-12G SOP-8 HF
1
U18
043030165011 IC EEPROM 2K AT24C02C-SSHM-T SOIC 8PIN LF
3
U22,U30,U31
043050244620 IC STEP-UP CONTROLLER MP3389EF-LF-Z TSSOP-28 LF
2
U702,U703
043050278530 IC T-CON Timing Controller TL2345ML MLF-56 HF
1
TU1
043060113010 IC REGULATOR 1A MC7805CDTRKG 3PIN DPAK LF
1
U10
043060156099 IC RESET STL8110GCL438 4.38V SOT-23 3PIN LF
1
U13
043060180079 IC LDO 1A ADJ AP1117EL-13 SOT223-3L 3PIN LF
1
U4,U8
043060183028 IC LDO 5A ADJ G1084TU3Uf TO-263T 3PIN LF
1
U52
043060249028 IC PWM BUCK DC/DC CONV 2A G5626P11U SOP-8 LF
2
U6,U9
043060267028 IC PWM BUCK DC/DC CONV G5207P11U SOP-8 LF
1
U12
043060269020 IC STEP-DOWN CONV 3A MP1484EN-C166-LF-Z SOIC-8 LF
1
U7
043070602903 IC DDR2 32Mx16 NT5TU32M16CG-25C BGA 84PIN LF
1
U48
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