DOWNLOAD LG 42PC51-ZB (CHASSIS:PP78A) Service Manual ↓ Size: 13.48 MB | Pages: 39 in PDF or view online for FREE

Name: LG 42PC51-ZB (CHASSIS:PP78A)
Brand: LG
SKU: 81419
Rating: 4 (1 reviews)

Model: 42PC51-ZB (CHASSIS:PP78A)
Pages: 39
Size: 13.48 MB
Type: PDF
Document: Service Manual
Brand: LG
Device: TV / Plasma
File: 42pc51-zb-chassis-pp78a.pdf
Date: 2018-11-20

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LG 42PC51-ZB (CHASSIS:PP78A) Service Manual ▷ View online

- 25 -
BLOCK DIAGRAM
SIDE_Y/C 
PC_Audio
RF
PC_Audio_L/R
TUNER 
TV_V
S I F
AV_RCA 
MNT_OUT MNT_OUT 
COMP1
COMP2 
COMP_Y/Pb/Pr 
TDA3107D2 TDA3107D2 
AmpAmp
Tx0/1/2/3/4/C
12V Panel /DISP_EN
R_SPK_OUT 
#1 RX 0/1/2/CLK
 
 DDC_SCL/SDA1/2 
HDMI
(PC/DTV) 
SCART1 
SCART2 
SCARTSCART
 
RGBRGB
COMP1_Y/Pb/Pr 
TV_OUT TV_OUT 
  SCART1,2_R/L 
 R/L_Audio 
(Analog_out)  
RGB
(PC/DTV)
 PC_RGB 
A V             S-A V 
   
SIDE_V  
PC_SCL/SDA 
 I
2 
C 
L_SPK_OUT 
RT-OPTION
RGB_HS/VS 
HDMI_HS/VS 
30P_LVDS
HEAD_OUT
L/R 
HEAD_OUTHEAD_OUT
L/R L/R 
  COMP2_R/L 
HS/VS
PIP OPTION 
ANX9021ANX9021
(TMDS RECIEVER)(TMDS RECIEVER)
TEA6420TEA6420
 Sound switch Sound switch
#2 RX 0/1/2/CLK
 
SIDE_R/L
SCART1,2_V (RCA1,2_V)
EEPROMEEPROM
   SUB-TUNER 
VIDEO_DECODERVIDEO_DECODER
TW9909TW9909
EEPROMEEPROM
VCT-ProVCT-Pro
(Lip-sync)(Lip-sync)
  SCART_FB
AV_AUDIO R/L
AM_AUDIO 
 COMP1_R/L 
 I
2 
C 
 RX 0/1/2/CLK
 
TV_OUTTV_OUT
MNT_OUTMNT_OUT
PIP_VPIP_V
ITU-656_IN
SCART1,2_I D
HDMI_Y/
Pb
/Pr(1080P
)
SCART_RGB 
STMAV335
(MUX)
RT- OPTION
COMP1_R/L 
RCA1,2_V(OPTION) 
COMP2_Y/Pb/Pr
(OPTION) 
 COMP2_R/L 
MC74HC4066MC74HC4066
DOWNLOAD_SW 
 
 I
2 
C 
 I
2 
C 
 I
2 
C 
COMP1_Y/Pb/PrCOMP1_Y/Pb/Pr
 
COMP2_Y/Pb/PrCOMP2_Y/Pb/Pr
(OPTION)(OPTION)
 
74ACT25374ACT253
(MUX)(MUX)
TV_SUBTV_SUB

- 26 -
EXPLODED VIEW
300
120
304
560
570
600
306
301
302
303
400
240
250
200
206
580
205
202
203
204
201
900
901
501
590
520
502
603
601
602
A2
A21

- 27 -
No.
Part No.
Descriptions
120
EAB33775101
Speaker,Full Range, EN1562C-6712 ND 10W 8OHM 82DB 100HZ 193.5 X 42 X 39.9 LUG  KOREA TOPTONE
200
EAJ38199201
PDP,Module-XGA, PDP42X40523.AKLGG XGA 42INCH 1024X768 16/9  PDP DIVISION
KUMI
EAJ38199501
PDP,Module-XGA, PDP42X40523.ASLGB XGA 42INCH 1024X768 16/9  PDP DIVISION
201
EBR36954101
Hand Insert PCB Assembly, EBR36954101 CTRL ASS’Y HAND INSERT 42” X4A CTRL  PDP DIVISION
202
EBR36939101
Hand Insert PCB Assembly, EBR36939101 YDRV ASS’Y HAND INSERT 42” X4A AU Layer 4  PDP DIVISION
203
EBR36925801
Hand Insert PCB Assembly, EBR36925801 XRLT ASS’Y HAND INSERT 42” X4A Layer 4  PDP DIVISION
204
EBR36939201
Hand Insert PCB Assembly, EBR36939201 XRRT ASS’Y HAND INSERT 42” X4A  PDP DIVISION
205
EBR36954501
Hand Insert PCB Assembly, EBR36954501 YSUS ASS’Y HAND INSERT 42” X4A YSUS  PDP DIVISION
206
EBR36921701
Hand Insert PCB Assembly, EBR36921701 ZSUS ASS’Y HAND INSERT 42” X4A 2 Layer (OSP)  PDP DIVISION
240
AJJ31584101
Supporter Assembly, 42PC5 SUPP.VETICAL Righta ASSY 
KUMI
AJJ31584103
Supporter Assembly, 42PC5 SUPP.VETICAL Right ASSY SKD
250
AJJ31584102
Supporter Assembly, 42PC5 SUPP.VETICAL Left ASSY
KUMI
AJJ31584104
Supporter Assembly, 42PC5 SUPP.VETICAL Left ASSY SKD
300
ABJ31583101
Cabinet Assembly, 42PC5 . 42”
KUMI
ABJ31583119
Cabinet Assembly, 42PC51-ZB . 42” LOCAL SILVER 2 COLCR
301
AJJ31583601
Supporter Assembly, 42PC5 SUPP.FILTER TOP
KUMI
AJJ31583603
Supporter Assembly, 42PC5 SUPP.FILTER TOP MA LOCAL
302
AJJ31583701
Supporter Assembly, 42PC5 SUPP.FILTER BOTTOM
KUMI
AJJ31583703
Supporter Assembly, 42PC5 SUPP.FILTER BOTTOM MA LOCAL
303
AJJ31583801
Supporter Assembly, 42PC5 SUPP.FILTER SIDE Right
KUMI
AJJ31583803
Supporter Assembly, 42PC5 SUPP.FILTER SIDE Right MA LOCAL
304
AJJ31583901
Supporter Assembly, 42PC5 SUPP.FILTER SIDE Left
KUMI
AJJ31583903
Supporter Assembly, 42PC5 SUPP.FILTER SIDE Left MA LOCAL
306
ABA31767901
Bracket Assembly, GRILLE 42PC5 - ASSY BRACKET SPEAKER DIRECT GRILL 
KUMI
ABA31767903
Bracket Assembly, GRILLE 42PC51-ZB - MA LOCAL SILVER
400
ACQ31583501
Cover Assembly,Rear, 42PC5 .. 42” BACK COVER ASSY ANALOG(SMALL) 
KUMI
ACQ31583504
Cover Assembly,Rear, - . 42” LGEMA PHANTOM
501
AGU31681101
Plate Assembly, ASSY PLATE TUNER BOT SMALL, 42PC5
KUMI
AGU31681115
Plate Assembly, ASSY PLATE TUNER BOT SMALL, 42PC5R-ZB, MA LCOAL
502
AGU31680901
Plate Assembly, ASSY PLATE TUNER COVER SMALL, 42PC5
KUMI
AGU31680921
Plate Assembly, ASSY 42PC5R-ZB(MA LOCAL)
520
EBR35814301
Hand Insert PCB Assembly,Main, MAIN M.I PP78A H4 VCT-PRO PDP 42” HAND INSERT . .
KUMI
EBR35814305
Hand Insert PCB Assembly,Main, MAIN M.I PP78A H4 VCT-PRO PDP 42” HAND INSERT . FOR LGEMP CKD
560
EBR33803801
Hand Insert PCB Assembly, CONTROL M.I PP78A 42PC5R-ZB . H4 CONTROL HAND INSERT
KUMI
EBR33803802
Hand Insert PCB Assembly, CONTROL M.I PP78A 42PC5R-ZB . H4 CONTROL HAND INSERT.SKD
570
EBR33809501
Hand Insert PCB Assembly, SUB M.I PP78A 42PC5R-ZB . H4 PREAMP HAND INSERT
KUMI
EBR33809502
Hand Insert PCB Assembly, SUB M.I PP78A 42PC5R-ZB.SKD . H4 PREAMP HAND INSERT
580
EAY32808901
SMPS,AC/DC, YPSUJ014A 100VTO240V 400W 50 TO 60HZ UL/CSA/CE/TUV 42INCH XPOWER DISPLAY PSU  LG 
590
EAM35012706
Filter, AC Line IF2-N06DEWL2 5.3mH 250VAC 6A 0.33uF 1000pF YH396-03 450/130MM VDE/CSA/K  CORE ADDTION
600
EBR33799347
Hand Insert PCB Assembly, SUB M.I PP78A 42PC5R(V)-ZB (42X4A) SIDE AV HAND INSERT
KUMI
EBR33799348
Hand Insert PCB Assembly, SUB M.I PP78A 42PC5R-ZB(42X4A) . SIDE AV HAND INSERT
601
MJH32554904
Supporter, PRESS SBHG 1 GUIDE EGI SUPPORTER SIDE, 42X4A MODULE
KUMI
MJH32554904
Supporter, PRESS SBHG 1 GUIDE EGI SUPPORTER SIDE, 42X4A MODULE
602
MGJ32369301
Plate,Shield, PRESS SPTE 0.3 SHIELD SPTE 42PC5, SHIELD CASE SIDE AV
603
ABA31583301
Bracket Assembly, SIDE AV 42PC5 AB NON
900
AAN31626701
Base Assembly, ASSY 42PC5 - FIXED STAND
KUMI
AAN31626704
Base Assembly, ASSY 42PC5 - FIXED STAND WITH LOGO SKD
901
MCK32604801
Cover, MOLD ABS 42PC5 ABS CABLE MANAGEMEN
A2
MKJ39170805
Remote Controller, COMPLEX PA71A 50PC5R-ZA H4_NON PIP, REMOTE CONTROLLER, Made in China, MKJ32022825
A21
3550V00590A
Cover, MOLD ABS 50PC3DD-UE.AUSRSHR ABS 
EXPLODED VIEW PARTS LIST
The  components  identified  by  mark          is
critical for safety.
Replace only with part number specified.

- 28 -
C100
0CH5101K416
C2012C0G1H101JT 100pF 5% 50V C0G
C100
0CH5101K416
C2012C0G1H101JT 100pF 5% 50V C0G
C100
0CC102CK41A
C1608C0G1H102JT 1nF 5% 50V C0G -5
C101
0CE4763F618
ESF476M016T1A5E05G 47uF 20% 16V 6
C101
0CH5101K416
C2012C0G1H101JT 100pF 5% 50V C0G
C101
0CC102CK41A
C1608C0G1H102JT 1nF 5% 50V C0G -5
C102
0CE227SF6DC
MVG6.3TP16VC220M 220uF 20% 16V 13
C102
0CE4763F618
ESF476M016T1A5E05G 47uF 20% 16V 6
C103
0CE106SF6DC
VMV106M016S0ANB010 10uF 20% 16V 1
C103
0CE4763F618
ESF476M016T1A5E05G 47uF 20% 16V 6
C104
0CE106SF6DC
VMV106M016S0ANB010 10uF 20% 16V 1
C104
0CH4471K416
C2012C0G1H471JT 470pF 5% 50V C0G
C105
0CC102CK41A
C1608C0G1H102JT 1nF 5% 50V C0G -5
C106
0CC102CK41A
C1608C0G1H102JT 1nF 5% 50V C0G -5
C110
0CK682CK51A
C1608Y5P1H682KT 6.8nF 10% 50V Y5P
C111
0CK682CK51A
C1608Y5P1H682KT 6.8nF 10% 50V Y5P
C112
0CK682CK51A
C1608Y5P1H682KT 6.8nF 10% 50V Y5P
C113
0CK682CK51A
C1608Y5P1H682KT 6.8nF 10% 50V Y5P
C114
0CC102CK41A
C1608C0G1H102JT 1nF 5% 50V C0G -5
C115
0CC102CK41A
C1608C0G1H102JT 1nF 5% 50V C0G -5
C116
0CE227SF6DC
MVG6.3TP16VC220M 220uF 20% 16V 13
C117
0CE106SF6DC
VMV106M016S0ANB010 10uF 20% 16V 1
C118
0CC102CK41A
C1608C0G1H102JT 1nF 5% 50V C0G -5
C119
0CC102CK41A
C1608C0G1H102JT 1nF 5% 50V C0G -5
C120
0CE106SF6DC
VMV106M016S0ANB010 10uF 20% 16V 1
C200
0CC102CK41A
C1608C0G1H102JT 1nF 5% 50V C0G -5
C201
0CC102CK41A
C1608C0G1H102JT 1nF 5% 50V C0G -5
C204
0CK103CK56A
0603B103K500CT 10nF 10% 50V X7R -
C205
0CK103CK56A
0603B103K500CT 10nF 10% 50V X7R -
C206
0CE106WFKDC
MVK4.0TP16VC10M 10uF 20% 16V 16MA
C206
0CE106SF6DC
VMV106M016S0ANB010 10uF 20% 16V 1
C213
0CC102CK41A
C1608C0G1H102JT 1nF 5% 50V C0G -5
C214
0CC102CK41A
C1608C0G1H102JT 1nF 5% 50V C0G -5
C215
0CK105CF94A
0603F105Z160CT 1uF -20TO+80% 16V
C216
0CK105CF94A
0603F105Z160CT 1uF -20TO+80% 16V
C217
0CK105CF94A
0603F105Z160CT 1uF -20TO+80% 16V
C218
0CK105CF94A
0603F105Z160CT 1uF -20TO+80% 16V
C219
0CK105CF94A
0603F105Z160CT 1uF -20TO+80% 16V
C220
0CK105CF94A
0603F105Z160CT 1uF -20TO+80% 16V
C221
0CK104CF56A
0603B104K160CT 100nF 10% 16V X7R
C225
EAE32755801
CL31A106K5HNNNE 10uF 10% 16V X5R
C226
EAE32755801
CL31A106K5HNNNE 10uF 10% 16V X5R
C227
EAE32755801
CL31A106K5HNNNE 10uF 10% 16V X5R
C302
0CK103CK56A
0603B103K500CT 10nF 10% 50V X7R -
C303
0CK103CK56A
0603B103K500CT 10nF 10% 50V X7R -
C307
0CK103CK56A
0603B103K500CT 10nF 10% 50V X7R -
C308
0CC180CK41A
C1608C0G1H180JT 18pF 5% 50V C0G -
C309
0CK103CK56A
0603B103K500CT 10nF 10% 50V X7R -
C310
0CC180CK41A
C1608C0G1H180JT 18pF 5% 50V C0G -
C311
0CE106SH6DC
VMV106M025S0ANB010 10uF 20% 25V 2
C312
0CK103CK51A
0603B103K500CT 10nF 10% 50V Y5P -
C316
0CE106WFKDC
MVK4.0TP16VC10M 10uF 20% 16V 16MA
C316
0CE106SH6DC
VMV106M025S0ANB010 10uF 20% 25V 2
C317
0CK103CK56A
0603B103K500CT 10nF 10% 50V X7R -
C318
0CE106SH6DC
VMV106M025S0ANB010 10uF 20% 25V 2
C319
0CK103CK56A
0603B103K500CT 10nF 10% 50V X7R -
C320
0CC220CK41A
C1608C0G1H220JT 22pF 5% 50V C0G -
C321
0CC220CK41A
C1608C0G1H220JT 22pF 5% 50V C0G -
C322
0CC220CK41A
C1608C0G1H220JT 22pF 5% 50V C0G -
C400
0CK103CK56A
0603B103K500CT 10nF 10% 50V X7R -
C401
0CC390CK41A
C1608C0G1H390JT 39pF 5% 50V C0G -
C402
0CC390CK41A
C1608C0G1H390JT 39pF 5% 50V C0G -
C403
0CE107SF6DC
VMV107M016S0ANE010 100uF 20% 16V
C404
0CK104CK56A
0603B104K500CT 100nF 10% 50V X7R
C405
0CK103CK56A
0603B103K500CT 10nF 10% 50V X7R -
C406
0CK273CK56A
0603B273K500CT 27nF 10% 50V X7R -
C408
0CE227SF6DC
MVG6.3TP16VC220M 220uF 20% 16V 13
C409
0CK273CK56A
0603B273K500CT 27nF 10% 50V X7R -
C410
0CC220CK41A
C1608C0G1H220JT 22pF 5% 50V C0G -
C411
0CK103CK56A
0603B103K500CT 10nF 10% 50V X7R -
C412
0CK103CK56A
0603B103K500CT 10nF 10% 50V X7R -
C500
0CK225DD66A
LMK212JB225MG-T 2.2uF 20% 10V X7R
C501
0CK104CK56A
0603B104K500CT 100nF 10% 50V X7R
C502
0CK104CK56A
0603B104K500CT 100nF 10% 50V X7R
C503
0CK104CK56A
0603B104K500CT 100nF 10% 50V X7R
C504
0CK104CK56A
0603B104K500CT 100nF 10% 50V X7R
C505
0CK104CK56A
0603B104K500CT 100nF 10% 50V X7R
C506
0CK104CK56A
0603B104K500CT 100nF 10% 50V X7R
C507
0CK104CK56A
0603B104K500CT 100nF 10% 50V X7R
C508
0CK104CK56A
0603B104K500CT 100nF 10% 50V X7R
C509
0CK104CK56A
0603B104K500CT 100nF 10% 50V X7R
C510
0CK104CK56A
0603B104K500CT 100nF 10% 50V X7R
C511
0CK104CK56A
0603B104K500CT 100nF 10% 50V X7R
C512
0CK104CK56A
0603B104K500CT 100nF 10% 50V X7R
C513
0CK104CK56A
0603B104K500CT 100nF 10% 50V X7R
C514
0CK104CK56A
0603B104K500CT 100nF 10% 50V X7R
C515
0CK104CK56A
0603B104K500CT 100nF 10% 50V X7R
C516
0CE106WFKDC
MVK4.0TP16VC10M 10uF 20% 16V 16MA
C516
0CE106SF6DC
VMV106M016S0ANB010 10uF 20% 16V 1
C517
0CK104CK56A
0603B104K500CT 100nF 10% 50V X7R
C518
0CK103CK56A
0603B103K500CT 10nF 10% 50V X7R -
C518
0CK103CK56A
0603B103K500CT 10nF 10% 50V X7R -
C519
0CK474CH94A
0603F474Z250CT 470nF -20TO+80% 25
C520
0CK474CH94A
0603F474Z250CT 470nF -20TO+80% 25
C521
0CK474CH94A
0603F474Z250CT 470nF -20TO+80% 25
C522
0CK474CH94A
0603F474Z250CT 470nF -20TO+80% 25
C525
0CK474CH94A
0603F474Z250CT 470nF -20TO+80% 25
C526
0CK474CH94A
0603F474Z250CT 470nF -20TO+80% 25
C527
0CE335WK6D8
MVK4.0TP50VC3.3M 3.3uF 20% 50V 14
LOC. NO.
PART NO.
DESCRIPTION / SPECIFICATION
LOC. NO.
PART NO.
DESCRIPTION / SPECIFICATION
REPLACEMENT PARTS LIST
DATE: 2007.  07.  23. 
CAPACITORs

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