DOWNLOAD LG 42PG20D-AA (CHASSIS:PA81A) Service Manual ↓ Size: 10.5 MB | Pages: 28 in PDF or view online for FREE

Model
42PG20D-AA (CHASSIS:PA81A)
Pages
28
Size
10.5 MB
Type
PDF
Document
Service Manual
Brand
Device
TV / Plasma
File
42pg20d-aa-chassis-pa81a.pdf
Date
PREV: LG 42PG20C-UA (CHASSIS:PU84A) Service Manual

LG 42PG20D-AA (CHASSIS:PA81A) Service Manual ▷ View online

- 21 -
I2C Control
PNX8537 Platform
SDA2_3.3V,SCL2_3.3V
Module
X4 : 0x72
MICOM
0x50
NTP3000
0x54
TUNER
Digital
R:0x1E
W:0x1F
[Master I2C 1]
TUNER
Analog
R : 0x87
W : 0x86
NVRAM
24LC512
W : 0xA6
R : 0xA7
SDA1_5V, SCL1_5V
[Master I2C 0]
[Slave I2C 0]
[Slave I2C 2]
[Slave I2C 1]
EDID
AT24C02BN
EDID
AT24C02BN
EDID
AT24C02BN
EDID
AT24C02BN
TMDS
351PAG
IC202
FLI10306
EDID
AT24C02BN
[DSDA1,DSCL1]
MICOM
EDID
AT24C02BN
- 22 -
Power Voltage
 
BlockDiagram
12V
KA7809
(IC1005)
5V
KIA78R05F
(IC1011)
+5V-TUNER
NTP3000A
16V 
P_+16V
KIA78R33F 1A
(IC1012)
3.3V_ON
+3.3V-TUNER
+3.3V
AZ1117H-1.8TRE
(IC1004)
+1.8V
AZ1117H-3.3
(IC1003)
+3.3V_STBY
FET Power  S/W
(Q1003)
+5V
RL_ON/PWR_ON/OFF
Tuner
Tuner
HDMI S/W, CI buffer, Flash Memory, 
NTP3000A, 
Chaplin(AUD_VREFP
) 
Tuner, NTP3000A
RS-232 Driver, Sub 
Micom
,  
HDMI S/W, OPTIC Jack, NVRAM, USB  
- 23 -
Power Voltage
 
BlockDiagram
5V
KIA78R33F  1A
(IC1001)
3.3V_ON
+3.3V-DOUGLAS
PQ018EZ02ZPH
0.23$
(IC1000)
+1.8V_DOUGLAS_DDR
1.8V_DOUGLAS_EN
SC4519STRT
600Khz,3A,0.41$
(IC1002)
+1.26V_DOUGLAS
1.26V_DOUGLAS_EN
- 24 -
EXPLODED VIEW
A2
300
305
301
200
202
560
571
120
561
570
307
260
590
910
270
280
520
203
240
205
204
206
250
290
580
900
400
201
302
303
304
591
230
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