Daewoo ELT-3020AP Schematic

ELT-3020AP SERVICE MANUAL

E-RAE ELECTRONICS

MODEL NAME DOCUMENT NO REVISION NO REVISION DATE PAGE ELT-3020AP RD(1) 00 04/03/31 1/55

ELT-3020AP SERVICE MANUAL

E-RAE ELECTRONICS

CONTENTS

SPECIFICATION ..................................................................... 4

CONTROL DESCRIPTIONS .............................................. 7

REMOTE CONTROL BUTTONS ....................................... 9

INSPECTION CRITERIA .................................................. 11

BLOCK & WIRING DIAGRAM ......................................... 12

MODULE BASIC CONFIGURATION ............................... 14

A/D BOARD PIN CONFIGURATION ................................ 15

OSD MENU(FACTORY) ................................................... 19

DESCRIPTION OF A/D FUNCTIONS .............................. 30

CIRCUIT OPERATION & WAVEFORM ............................ 32

MODULE POWER SEQUENCE ...................................... 39

WHITE BALANCE ADJUSTMENT .................................. 40

POWER BOARD PIN CONFIGURATION .......................... 43

MODULE PRECAUTIONS .............................................. 44

TROUBLE SHOOTING ............................................. 45

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ELT-3020AP SERVICE MANUAL

E-RAE ELECTRONICS

EXPLODED VIEW PARTS LIST ...................................... 47

REPLACEMENT PARTS LIST(PAL TV) .......................... 50

EXPLODED VIEW ........................................................... 55

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ELT-3020AP SERVICE MANUAL

E-RAE ELECTRONICS

SPECIFICATIONS

Note : Specification and others are subject to change without notice for improvement.

● TV

1.Input Signal :

PAL

SECAM SD,HD VGA ~SXGA

2. Tuner : PAL SECAM

2. Input Voltage : AC 100V ~ 240V, @ 50/60Hz, 2A

3. Power Consumption : 150W

Stand-by : 5W

4. LCD Module : V296W1 - ### (CHIMEI)

5. Speaker Impedance : 8Ω

6. Sound Output : 7W + 7W (Max)

7. Feature :

- AV Input

- Component1 Input (DVD)

- Component2 Input (DTV)

- D-SUB (Analog RGB 15 pin)

- S-Video Input

- Composite Input

- SCART1 Input (Full)

- SCART2 Input (Half)

- Tuner (PAL,SECAM)

- Audio Input (Composite, Component 1/2, S-Video, PC)

- RS-232C (9 pin), TCP / IP Support (0~254set)

8. Function :

- ARC

- PIP

- PBP (4:3,16:9)

- MTS

- TTX

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ELT-3020AP SERVICE MANUAL

9. External Interface

1) AV / COMPONENT Output

ITEM MIN TYP MAX UNIT AV Video Input Level 0.85 1.00 1.15 Vpp AV Sync Input Level 0.24 0.29 0.32 Vpp AV Burst Input Level 0.14 0.28 0.35 Vpp AV Video Input Level 0.47 0.63 0.79 V AV Audio Input L/R 0.47 0.63 0.79 V Component Video Input Level

(Y,Cb/Pb,Cr/Pr) Analog RGB, H/V Input Level 0.6 0.7 0.8 Vpp

2) COMPONENT Mode (Y,Cb/Pb,Cr/Pr)

RESOLUTION H-Freq(KHz) V-Freq(Hz) Proposed

720*480 15.73 60.00 SDTV,DVD 480i 720*576 15.63 50.00 SDTV,DVD 576i

720*480 31.47 59.94 SDTV 480p 1280*720 45.00 60.00 HDTV 720p 1280*720 44.96 59.94 HDTV 720p

1920*1080 33.75 60.00 HDTV 1080i 1920*1080 33.72 59.94 HDTV 1080i

3) SUPPORTING DISPLAY Mode

RESOLUTION H-Freq(KHz) V-Freq(Hz)

31,47 60

640*480 720*400 31.47 70

800*600

1024*768

1280*1024 64.00 60

37.86 72

37.50 75

35.15 56

37.88 60

48.88 72

46.88 75

48.36 60 56,48 70

60.02 75

E-RAE ELECTRONICS

0.6 0.7 0.8 Vpp

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10. RS-232C Signal

Pin No Pin Name Spec Pin No Pin Name Spec

ELT-3020AP SERVICE MANUAL

1 DCD NC 6 DSR NC 2 RXD 12 Vpp 7 RTS NC 3 TXD 12 Vpp 8 CTS NC 4 DTR NC 9 R NC 5 GND GND

E-RAE ELECTRONICS

MODEL NAME DOCUMENT NO REVISION NO REVISION DATE PAGE ELT-3020AP RD(1) 00 04/03/31 6/55

ELT-3020AP SERVICE MANUAL

E-RAE ELECTRONICS

CONTROL DESCRIPTIONS

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ELT-3020AP SERVICE MANUAL

E-RAE ELECTRONICS

MODEL NAME DOCUMENT NO REVISION NO REVISION DATE PAGE ELT-3020AP RD(1) 00 04/03/31 8/55

ELT-3020AP SERVICE MANUAL

REMOTE CONTROL BUTTONS

E-RAE ELECTRONICS

MODEL NAME DOCUMENT NO REVISION NO REVISION DATE PAGE ELT-3020AP RD(1) 00 04/03/31 9/55

■

TELETEXT FUNCTION

ELT-3020AP SERVICE MANUAL

E-RAE ELECTRONICS

MODEL NAME DOCUMENT NO REVISION NO REVISION DATE PAGE ELT-3020AP RD(1) 00 04/03/31 10/55

ELT-3020AP SERVICE MANUAL

E-RAE ELECTRONICS

INSPECTION CRITERIA

MODEL NAME DOCUMENT NO REVISION NO REVISION DATE PAGE ELT-3020AP RD(1) 00 04/03/31 11/55

ELT-3020AP SERVICE MANUAL

E-RAE ELECTRONICS

A NA L OG R G B

C O M P O N E NT1

(D T V)

C O M P O N E NT2

(D V D)

T UN E R

C V BS

C OM P O S IT E

IN

H AL F SCA R T

V ID E O IN /OU T

F UL L SCA R T

V ID E O IN /OU T

S -V ID EO

A UD IO IN

P C

A UD IO IN

S CAR T _FU L L

A UD I O IN

S CAR T _ HA L F

A UD IO IN

C OM P O S IT E

A UD IO IN

F UL L SCA R T

R G B

D TV

A UD IO IN

D V D

A UD IO IN

T UN E R

S IF

S CAR T _ FU L L

A UD IO O U T

S CAR T _ HA L F

A UD IO O U T

24L C21

E EPR O M

R ,G ,B ,H, V 5

Y,P b, Pr

C VB S ,ID

C H ,L U 2

SVIDE O _I N R /L

PC_ IN R / L

F _S C _IN R/L

H _S C _I N R /L

A V_ IN R /L

SCAR T R GB(R ,G ,B ,F B )

D TV _IN R /L

D VD _ IN R /L

3

2

C XA 2 08 9Q

M UX(U3 )

2

F_C V BS _ OUT _ R/ L

2

H _C V BS_ O UT_ R/L

2

A /V

(U 8)

B A7 65 7

S W IT CH

4

V O UT2 Y,C O U T2

4

V O UT1 Y,C O U T1 2

M SP0 L /R M SP1 L /R

3 0 " L C D T V P A L P W 5 6 5 B L O C K D IA G R A M

5

3

2

A D9 883

C ON V E R T ER

BA7 65 7

(U 28 )

S W IT CH

(U 2)

A /D

4

TTX R G B

(R ,G, B,FB)

4

2 2

20 .2 5M H z

V P C3 23 0 D-C5

V ID EO

D ECO D E R

H _S C ART _OUT

20 .2 5M H z

V P C3 23 0 D-C5

V ID EO

D ECO D E R

(M A IN )

6.00 0M H z

S DA5 55 0

(U 26 )

T TX

18.4 32 M Hz

(U 45)

M S P34 53

A UD IO

P R O C E S S OR

(U 39)

(S U B)

(U 41)

24

TTX _CV B S

S ST 39V F0 8 0A T

E E PR O M

M SP_ O UT1

L / R

M SP_ O UT2

L / R

C H1 RG B

C H1 GB

C H2 GB

FLA SH

H Y6 2U8 200

R AM

24L C1 6

S PKRS PK

T DA 7 26 6

A UD I O A M P

T S482ID

A UD I O A M P

H EA D P HON E

20 .0 00 M Hz

24

16

P W 565

16

D S232A S

R S 23 2

T R AN S M IT TER

L

R /L

R S 23 2

D SUB -9P

VCC 12

12V

A P1501 -50

12V 12V 12 V 1 2V

(U 2 1)

VCC 5

80.0 00 M H

I/O E XTE N D ER

K YE P AD

VCC 3

R C 11 17

D R G B[2 3: 0]

D HS D VS D EN

D CLK

L V D S O N

LCD P W O N

A DR[ 12:0]

F SD Q M [7:0]

FSD A TA[ 63:0]

A [2 1:0]

D [7 :0 ]

R E M OC O N

VCC 5 A

A P1 501 -50

24

P O W ER

M O DU L E

T HC 6 3L V DM83 R

LVDS

T R AN S M IT TER

K 4S 6 43 23 2E X 2

S DRA M

TM 2 8F8 00 B 3

F LA SH

M O M O R Y

24 L C2 56

E E PR O M

V CC 5 D VC C 9

A P1 501 -50

O D D0O D D0+ O D D1O D D1+

D2-

O

D

O D D2+ O D D3-

O D D3+ O DDC L KO DDC L K+

K IA 78 09

T FT L CD M O DU L E

30 "

5V

5VS T

B AC K LIG HT

IN V E R TE R

FAN

12V

24V

MODEL NAME DOCUMENT NO REVISION NO REVISION DATE PAGE ELT-3020AP RD(1) 00 04/03/31 12/55

ELT-3020AP SERVICE MANUAL

E-RAE ELECTRONICS

E L T - 3 0 2 0 A P L C D T V W I R I N G D I A G R A M

S P E A K E R

_ R

I N V E R T E R

I N N E T

1 2

P

1 0

P

A C

S / W

8 P

1 5

P

C N 3 C N 4

C N 1

6 P

2 P

1 5

P

P S U

I R / L E D

O S D K E Y

I / O B O A R D

L C D P A N E L 2 0 P

C N 2

1 2

P

1 5 P

J 1

J 2

S P E A K E R

_ L

J 1

J 2

2 4

P

2 1 P

3 P

C O N 3

1 2

C O N 4

P

C O N 2

6 P

2

4

P

2

4

P

3 1 P

P 3

C O N 5

M A I N B O A R D

J 5

8 P

C O N 1

T U N E R

2 4

B O A R D

P

J 5

4 P

T U N ER

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MODULE BASIC CONFIGURATION

[V296W1 - ###]

ELT-3020AP SERVICE MANUAL

E-RAE ELECTRONICS

MODEL NAME DOCUMENT NO REVISION NO REVISION DATE PAGE ELT-3020AP RD(1) 00 04/03/31 14/55

ELT-3020AP SERVICE MANUAL

A/D BOARD PIN CONFIGURATION

Pin No I/O Specification Description

1 ( +12V ) I +12V MAIN B/D 12V Input 2 ( +12V ) I +12V MAIN B/D 12V Input 3 ( AC_DET ) I +5V AC_DETECT PIN 4 ( GND ) GND Ground 5 ( GND ) GND Ground 6 ( GND ) GND Ground

CON4

CON2

7 ( S5V ) I S5V MAIN 5V Input 8 ( GND ) GND Ground 9 ( BRITE_ADJ ) O 10 ( GND ) GND Ground 11 ( BKL_ON ) O BACKLIGHT_ON LCD Backlight ON 12(POWER_

ON/OFF )

1 ( GND ) GND Ground 2 ( LEDG ) O LED_GREEN GREEN LED CONTORL OUTPUT PORT

3 ( LEDR ) O LED_RED RED LED CONTORL OUTPUT PORT

4 ( IR ) I 5V / 0V 5 ( GND ) GND Ground 6 ( VCC ) O 5V / 0V OSD B/D 5V Output

O POWER_ON/OFF POWER ON_OFF Control

BRIGHTNESS_ADJUST

LCD Brightness Adjustment

: High : Green LED On : High : Red LED On

IR RECEIVER SIGNAL INPUT PORT

E-RAE ELECTRONICS

1 ( POWER ) I 5V / 0V

2 ( SOURCE ) SOURCE SELECT Input Source Selecting 3 ( MENU ) I MENU OSD MENU Display

CON1

4 ( CH+ ) I CHANNEL UP TV CHANNEL CONTROL(UP) 5 ( CH- ) I CHANNEL DOWN TV CHANNEL CONTROL(DOWN) 6 ( VOL+ ) I VOLUME UP SOUND CONTROL(VOLUME UP) 7 ( VOL- ) I VOLUME DOWN SOUND CONTROL(VOLUME DOWN) 8 ( GND ) GND Ground

MODEL NAME DOCUMENT NO REVISION NO REVISION DATE PAGE

POWER S/W PORT

:DC POWER ON_OFF

ELT-3020AP RD(1) 00 04/03/31 15/55

ELT-3020AP SERVICE MANUAL

1 ( VCC12) VCC12 Power Supply +12.0V 2 ( VCC12) VCC12 Power Supply +12.0V 3 (VCC5A) VCC5A Power Supply +5.0V 4 (MSP_L_OUT1) 5 (MSP_R_OUT1) 6 (GND) GND Ground 7 (MSP_L_OUT2) 8 (MSP_R_OUT2) 9 (GND) GND Ground 10 (AFT) I AFT

J5

11 (TUNER_SIF) I TUNER_SIF RF TV Sound Input 12( (GND) GND Ground 13 (TUNER_CVBS) 14 (GND) GND Ground 15 (S_MUTE) O S_MUTE Sound Mute 16 (AMP_ST-BY) 17 (HEAD_MUTE) 18 (GND) GND Ground 19 (SDA3) SDA3 I2C Protocol 20 (SCL3) SCL3 I2C Protocol

O MSP_L_OUT1 MSP LEFT Sound Output1 O MSP_R_OUT1 MSP RIGHT Sound Output1

O MSP_L_OUT2 MSP LEFT Sound Output2 O MSP_R_OUT2 MSP RIGHT Sound Output2

I TUNER_CVBS RF TV Video Input

O AMP_ST-BY

I HEAD_MUTE Head Phone Mute

E-RAE ELECTRONICS

1 (VCC5) VCC5 Power Supply +5.0V

J1

2 (VCC5) VCC5 Power Supply +5.0V 3 (SCART_R) I SCART_R Full Scart Red Input 4 (SCART_G) I SCART_G Full Scart GREEN Input 5 (SCART_B) I SCART_B Full Scart BLUE Input 6 (SCART_FB) I SCART_FB 7 (GND) GND Ground

8 (FSCART_CVBS_IN)

I FSCART_CVBS_IN Full Scart Composite Input

9 (GND) GND Ground

10 (HSCART_CVBS_IN)

I HSCART_CVBS_IN Half Scart Composite Input

11 (GND) GND Ground

12 (FSCART_ID) 13 (HSCART_ID) 14 (GND) 15 (F_CVBS_OUT)

I FSCART_ID Full Scart Check Signal Input I HSCART_ID Half Scart Check Signal Input I GND Ground

O F_CVBS_OUT Full Scart Composite Output

16 (GND) GND Ground

17 (H_CVBS_OUT)

O H_CVBS_OUT Half Scart Composite Output

18 (GND) GND Ground

19 (F_CVBS_L_OUT)

O F_CVBS_L_OUT Full Scart Composite Left Sound Output

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ELT-3020AP SERVICE MANUAL

E-RAE ELECTRONICS

20 (F_CVBS_R_OUT)

O F_CVBS_R_OUT Full Scart Composite Right Sound Output

21 (GND) GND Ground

22 (H_CVBS_L_OUT) 23 (H_CVBS_R_OUT)

O H_CVBS_L_OUT Half Scart Composite Left Sound Output

O H_CVBS_R_OUT Half Scart Composite Right Sound Output 24 (GND) GND Ground 1 (VCC5) VCC5 Power Supply +5.0V 2 (F_SC_L_IN) I F_SC_L_IN Full Scart Left Sound Input 3 (F_SC_R_IN) I F_SC_R_IN Full Scart Right Sound Input 4 (GND) GND Ground 5 (H_SC_L_IN) I H_SC_L_IN Half Scart Left Sound Input 6 (H_SC_R_IN) I H_SC_R_IN Half Scart Right Sound Input 7 (GND) GND Ground

8 (AV_CVBS_IN) 9 (AV_CVBS_DET)

I AV_CVBS_IN Composite Video Input I AV_CVBS_DET Composite Check Signal Input

10 (GND) GND Ground

11 (SVIDEO_L_IN) 12 (SVIDEO_R_IN)

J2

13 (GND) GND Ground

I SVIDEO_L_IN SVIDEO_Left Sound Input I SVIDEO_R_IN SVIDEO_Right Sound Input

14 (PC_L_IN) I PC_L_IN Analog RGB Left Sound Input 15 (PC_R_IN) I PC_R_IN Analog RGB Right Sound Input 16 (GND) I GND Ground 17 (DTV_L_IN) I DTV_L_IN Component(DTV) Left Sound Input 18 (DTV_R_IN) I DTV_R_IN Component(DTV) Right Sound Input 19 (GND) GND Ground 20 (DVD_L_IN) I DVD_L_IN Component(DVD) Left Sound Input 21 (DVD_R_IN) I DVD_R_IN Component(DVD) Right Sound Input 22 (GND) GND Ground 23 (AV_L_IN) I AV_L_IN Composite Left Sound Input 24 (AV_R_IN) I AV_R_IN Composite Right Sound Input

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