DOWNLOAD LG 42LH35FD (CHASSIS:LJ91A) Service Manual ↓ Size: 4.82 MB | Pages: 53 in PDF or view online for FREE

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300

200

A5

801

LV

1

A2

A10

802

803

804

805

521

400

900

120

510

301

500

320

302

540

530

550

806

200T

303

310

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.

MPEG_TS

DDR2

256MB

DDR2

256MB

BCM3556

IC100

(400M MIPS)

BCM3556

IC100

(400M MIPS)

1080P

LVDS

HDMI0_BCM

CVBS_LIVE

TP1

CVBS1/
SIF1

Ca

ble

ISDB-T/

PAL/NTS

C

TU101/2

Serial
TP1

I2S_BCM

NTP3100L

IC500

NTP3100L

IC500

CVBS1

CVBS2

COMP1_LR

COMP2_LR

RGB_LR

HDMI0_BCM

AV1 LR

AV2 LR

NANDFlash

IC101

128MB

NANDFlash

IC101

128MB

USB2.0

SPDIF

SIF_LIVE

2069_L/R_OUT1

TP2

TDA9996

IC601

TDA9996

IC601

(Comp1/2, RGB)

HDMI4

HDMI2

HDMI1

SIDE HDMI_PORT4

UI_HW_PORT1

UI_HW_PORT2

MICOM

IC407

MICOM

IC407

I2C

X-TAL

24MHz

X-TAL

54MHz

DDR2

256MB

DDR2

256MB

¾

ƒ

There are no power sequence requirements. Any sequence will be acceptable

ƒ

All supplies have a minimum ramp up time of 100us. There is no maximum ramp up time restriction

ƒ

RESET should be held active during ramp up and at least 10ms after all voltages are above 95% of their specified nominal 
levels

either 1.2V, 1.8V, 2.5V, 3.3V

either 1.2V, 1.8V, 2.5V, 3.3V

Reset Input

Min 100us

Min 10ms

1.2V rail at 1.14V
1.8V rail at 1.71V
2.5V rail at 2.375V
3.3V rail at 3.135V

95%

All power rails above
minimum operating voltage

¾

ƒ

Applications must guarantee all 4 conditions mentioned below during power-on of SAA7164

ƒ

Condition 1:
ƒ

RESET has to be LOW, when the 1.2 V digital and the 3.3 V digital supplies become available

ƒ

RESET has to remain LOW for at least 5 ms after all supplies became available.

ƒ

Condition 2:
ƒ

Either power-on the 1.2 V analog and 3.3 V analog supplies simultaneously

ƒ

Or power-on the 1.2 V analog supplies after the 3.3 V analog supplies

ƒ

Condition 3:
ƒ

Either power-on the 1.2 V analog, the 1.2 V digital and 3.3 V digital supplies simultaneously

ƒ

Or power-on the 1.2 V digital supplies after the 1.2 V analog and 3.3 V digital supplies.

ƒ

Condition 4:
ƒ

Either power-on the 2.6 V digital supplies after the 3.3 V digital supplies

ƒ

Or power-on the 1.2 V digital supplies simultaneously or after the 2.6 V digital supplies.