DOWNLOAD LG 50PM4MA-WA (CHASSIS:PM75A) Service Manual ↓ Size: 6.31 MB | Pages: 25 in PDF or view online for FREE

- 21 -

ANX9021

(HDMI 

RX

’er

)

RXC

–

/RX0

–

RX1

–

/RX2

–

FLI8662

(Cortez Advanced)

NTP2000

(Digital Audio Processor)

TAS5122

(D-CLASS AMP)

NJU26901

(Audio Delay)

LC FILTER

OUT1A

OUT1B

OUT2A

OUT2B

MSP4440K

(Audio Processor)

AT49BV160

(Flash Memory)

HY5DU281622ETP

(DDR SDRAM)

HY5DU281622ETP

(DDR SDRAM)

CXA2040AQ

(Video Switch)

LA7217M

(Video Sync 

Seperator

)

74HC14D

(Schmitt Trigger 

Inverter) 

CM2021

(ESD 

Protector)

ICL3232C

(RS232C)

AD8009

(OP AMP)

PC R/G/B

PC H/V SYNC

PC R/G/B OUT

PC H/V SYNC OUT

PC H/V SYNC

IR&LED Board

PDP Panel

KEY1 / KEY2

PREAMP IR

WIRE CONTROL

RXD / TXD

RXC

–

/RX0

–

RX1

–

/RX2

–

24 bit

SYNC_DE

V / Y_OUT

C_OUT

I2S

Delayed I2S

Y/C

CVBS

CVBS OUT

AV Audio IN

Component Audio IN

PC Audio IN

AV Audio OUT

Component 1,2 Y 

Pb Pr

WIRE

CONTROL

RS-232C IN / OUT

HDMI

PC RGB IN / OUT

Component 1, 2 IN

PC Audio

Component 1, 2 

Audio IN

CVBS

IN / OUT

CVBS Audio

IN / OUT

S-Video

27MHz

19.6608MHz

18.432MHz

500KHz

KEY CONTROL B

’D

VIDEO PATH

AUDIO PATH

- 22 -

300

305

301

304

400

590

501

520

560

303

302

101

240

250

260

208

209

580

207

201

205

204

206

202

203

200

Many electrical and mechanical parts in this chassis have special safety-related characteristics. These
parts are identified by       in the Schematic Diagram and EXPLODED VIEW. 
It is essential that these special safety parts should be replaced with the same components as
recommended in this manual to prevent X-RADIATION, Shock, Fire, or other Hazards. 
Do not modify the original design without permission of manufacturer.