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- 17 -

1) The screen does not become the display from specific input mode

(RF, AV, Component, RGB, DVI).

1) Check the all input mode should become normality display.

Is the Tuner normal?

Is the RF Cable connected well?
1. Check the another TV set.

Cable inserts well or Change the RF Cable

Yes

No

No

Operates the FLI106X0H IC(IC100)?
1.Check the Monitor OUT by SCART2 : Connect the another TV SET
2.Check the LVDS clock(R537, R538) on the VSC Board by Oscilloscope?
3.Check the each Input Source. ATV(TV_CVBS : R302), DTV(TU301 Pin23), 

S/AV Mode( SIDE_CVBS_IN : R1160), Component/RGB
(COMP_Y, V/HSYNC : R1122, R1174, R1180)
HMDI(SDA/SCL : IC201 Pin29, Pin30), SCART(SC1/2_CVBS_IN : R977, R521) 
on the VSC Board by Oscilloscope.

Replace the Tuner(TU301)

No

Is normal the Input voltage, IIC Communication?
1.Check the Input Voltage 5V(L303), 3.3V(L1022), 1.8V(TU301 Pin22)
2. Check the Analog/Digital IIC(A:R334,R335 D:R342, R343)

Yes

Replace the FLI106X0H
(IC100).

No

Is Video input of the AV Jack (JK700, 707) normal?
1. Check the CVBS signal in AV jack by Oscilloscope

Yes

Check the input source of Equipment

No

Same as Block A

- 18 -

Is R,G,B input and H,V Sync of the JK701, 703  normal?
1. Check the RGB signal/H(V)SYNC in the RGB Cable

Yes

Check the input source of Equipment

Same as Block A

No

Is Video input of A/V jack normal?

Yes

Check the input source.

Same as Block A

No

No

Is the HDMI(IC201)

normal?

Yes

Same as Block A

Is the TMDS waveform between the

IC and HDMI jacks normal?

Replace the IC201.

No

- 19 -

1) LED is Green.
2) Screen display but sound is not output.

All input(mode) is no

sound?

Only HDMI is No

Sound?

Yes

Download

the EDID data

No

No

YES

Only RF is no sound?

Check the Tuner IN/OUT

TV_L/R_OUT( R356)

No

Yes

IC601(Audio AMP) operates Normal?
1.Check 1.8V, 3.3V, 16V input Voltage (L607, IC601 Pin8, IC601 Pin32)
2.Check the  IIC communication (SDA/SCL : R645, R643)
3.Check the Audio Signal is normal.(SPK_L/R : L603, L604, L606, L610)

Replace the Audio AMP IC

(IC601).

No

No

YES

Replace the VSC Board

Is the speaker On it menu?

1. Menu > Audio > TV Speaker ON/OFF

Set on speaker in menu.
(TV Speaker OFF ? ON)

No

Is the speaker Cable normal?
1. Isn’t  damage in the Speaker Cable?
2. Is the Speaker cable connect well form VSC B/D to Speaker.

Change or Reconnect the

Speaker Cable. 

Yes

Only RF is no sound?

Replace the VSC B/D

Yes

Yes

Check the Input Sound IN/OUT
AV1(SC1_LIN : R1140, SC1_RIN : R1134)
AV1(SC2_LIN : R1146, SC2_RIN : R1145)
AV3(SIDE_LIN : R1306, SIDE_RIN: R1307 )
PC(PC_LIN: R631, PC_RIN : R630)
Component (COMP_LIN : R1178, COMP_RIN: R1179)

No

- 20 -

Main Block Diagram

COMP1

RGB

HDMI1,

HDMI2,

HDMI3

SCART1

Side AV1

TS[0:7]

CVBS, Y/C, L/R

SCART2

DDR2 SDRAM

(64MByte)

Qimonda

IC701

NOR Flash

(32MB)

SPANSION

IC404

WXGA

 Panel

SPDIF

USB

SPDIF_OUT

Digital amp

(NTP3000A)

IC601

RS-232C

TMDS351PAG

IC201

Y 

Pb

 Pr, L/R

RGB, CVBS, audio L/R

CVBS

DTV/MNT OUT

I2S

EEPROM

24LC512

IC907

HDMI4

RGB, L/R

Tuner 

(TDFV-G135D1)

TU301

TMDS[0:7]

74LVC541A(PW)

Buffer

IC402

PCMCIA

Card

74LVC542A5

Bi-Buffer

IC405

DATA[0:7]

74LCX244MTC

Buffer

IC406,407,408

Address[0:14]

TMDS[0:7]

CVBS, SIF, AM Audio

Tuner V out

NLASB3157

IC502

LVDS TMDS ODD[10 bit]

Host Address[1:16]

Host Data[0:15]

LPF

DDR2 Data[0:15]

DDR2 SDRAM

(64MByte)

Qimonda

IC701

DDR2 Data[16:31]

DDR2 Address[0:12]

I2C

MICOM

WT61P8

IC802

I2C

MAX3232CDR

IC101

TX/RX

TX

NLASB3157

IC1013

TX

TX

AT24C16AN

IC801

FLI10306

TS[0], CLK, SY, VAL

Module I2C

RX

Audio L/R out

Audio L/R out

MSP4458

Audio L/R in

Audio L/R in

I2S

Muxed

 audio

L/R Audio

Only

Demux

Only for DTV

Audio

MPE