ERAE Electronics Industry ELT-3020AP User manual

ELT-3020AP SERVICE MANUAL E-RAE ELECTRONICS
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ELT-3020AP RD(1) 00 04/03/31 1/55

ELT-3020AP SERVICE MANUAL E-RAE ELECTRONICS
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ELT-3020AP RD(1) 00 04/03/31 2/55
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

ELT-3020AP SERVICE MANUAL E-RAE ELECTRONICS
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EXPLODED VIEW PARTS LIST...................................... 47
REPLACEMENT PARTS LIST(PAL TV).......................... 50
EXPLODED VIEW ........................................................... 55

ELT-3020AP SERVICE MANUAL E-RAE ELECTRONICS
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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

ELT-3020AP SERVICE MANUAL E-RAE ELECTRONICS
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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) 0.6 0.7 0.8 Vpp
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
37.86 72
640*480 37.50 75
720*400 31.47 70
35.15 56
37.88 60
48.88 72
800*600
46.88 75
48.36 60
56,48 70
1024*768 60.02 75
1280*1024 64.00 60

ELT-3020AP SERVICE MANUAL E-RAE ELECTRONICS
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10. RS-232C Signal
Pin No Pin Name Spec Pin No Pin Name Spec
1DCD NC 6DSR NC
2RXD 12 Vpp 7RTS NC
3TXD 12 Vpp 8CTS NC
4DTR NC 9RNC
5GND GND

ELT-3020AP SERVICE MANUAL E-RAE ELECTRONICS
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CONTROL DESCRIPTIONS

ELT-3020AP SERVICE MANUAL E-RAE ELECTRONICS
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ELT-3020AP SERVICE MANUAL E-RAE ELECTRONICS
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REMOTE CONTROL BUTTONS

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■ TELETEXT FUNCTION

ELT-3020AP SERVICE MANUAL E-RAE ELECTRONICS
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INSPECTION CRITERIA

ELT-3020AP SERVICE MANUAL E-RAE ELECTRONICS
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TFTLCD
MODULE
30"
BACK
LIG HT
(U21)
PW565
REMOCON
20.000MHz
3 0 "LCDTVPALPW5 6 5 BLOCKDIAGRAM
ANALO G RGB(U2)
AD988 3
A/D
CONVERTER
THC63LVDM83R
LVDS
TRANSMIT T ER
OD D 0-
OD D 0+
OD D 1-
OD D 1+
ODD2-
OD D 2+
OD D 3-
OD D 3+
OD D CLK-
OD D CLK+
LCDPWON
DRGB[23:0]
(U39)
VPC3230D-C5
VIDEO
DECODER
(SUB)
24
DHS
DVS
DEN
DCLK
COMPONENT1
(DTV)
COMPONENT2
(DVD)
HALFSCART
VIDEOIN/OUT
S-VIDEO
(U8)
BA7657
SW ITCH
CXA208 9 Q
A/V
MUX (U3)
KY E
PAD
TDA726 6
AUDIO AMP
SPK
RSPK L
ADR[12:0]
DS232AS
RS232
TRANSMITTER
RS232
DSUB-9P
24LC21
EEPROM
PO W ER
MODULE
12 V5V
INVERTER
KIA7809
24 V
5VST
20.25 MHz
18.432MHz
(U41)
VPC3230D-C5
VIDEO
DECODER
(MAIN)
20.25 MHz
CH1RGB
K4S643 2 3 2EX2
SDRAM
AP1501 -5 0
VC C 5
BA76 5 7
(U28)
SW ITCH
TUNER
CVBS
COMPOSITE
IN
FUL L SCART
VIDEOIN/OUT
FUL L SCART
RGBSCARTRGB(R,G,B,FB)
Y,Pb,Pr
SDA55 5 0
(U26)
TTX
TT XRGB
(R,G,B,FB)
S-VIDEO
AUDIO IN
PC
AUDIO IN
TS482ID
AUDIO AMP
HEADPHONE
R/L
(U45)
MSP34 5 3
AUDIO
PROCES S OR
6.000MHz
24
CH1GB
16
16
CH2GB
LVDSON
80.000MH
FSDQM[7:0]
FSDATA[63 :0]
A[21 :0]
D[7:0]
I/OE X TENDER
SST39VF080AT
FLASH
HY62U8 2 0 0
RAM
24LC1 6
E E PROM
VC C 1 2
AP1501-50
VC C 5A
AP1501-50
VC C 5DVC C 9
RC1117
VC C 3
12 V12V1 2V12V
Y,Pb,Pr
R,G,B,H,V5
3
5
3
H_SCART_OUT
VOUT2
VOUT1
MSP0L/R
SVIDEO_INR/L
PC_INR/L
DTV_INR/L
AV_INR/L
4
4
4
CVBS,ID
CVBS,ID
F_SC_INR/L
H_SC_INR/L
F_CVBS_OUT_R/L
H_CVBS_OUT_R/L
2
2
2
2
CH,LU2
Y,COUT2
Y,COUT1 2
2
MSP1L/R
2
2
DTV
AUDIO IN
DVD
AUDIO IN
SCART_FULL
AUDIO IN
SCART_HALF
AUDIO IN
COMPOSITE
AUDIO IN
2
2
2
2
2
TUNER
SIF
SCART_FUL L
AUDIO OUT
SCART_HALF
AUDIO OUT
2
2
DVD_INR/L
MSP_OUT1
L/R
MSP_OUT2
L/R
4
24
12 V
FAN
TM2 8 F800B3
FLASH
MOMORY
24LC2 5 6
E E PROM
TTX_CVBS

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1 5 P
1 2
P
2P
1 2
P
1 5
P
M A I N
BOARD
I/O BOARD
P S U
CN1
I N V E
R T E R
I N V E
R T E R
CN3CN4
CN2
ELT-3020AP LCD TV WIRING DIAGRAM
2
4
P
LCDPANEL2 0 P
1 0
P
1 5
P
A C
INNET
J1
J2
6P
1 2
P
8P
2
4
P
2 1 P
P3
SPEAKER
_RSPEAKER
_L
CON2
CON4CON1
J1
J2
8P
O S D K E Y
6P
I R / L E D
3P
T U N E R
2
4
P
4P
T U N E R
BOARD
2
4
P
2
4
P
2
4
PJ5J5
CON3
CON1
3 1 P
CON5
S/W

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MODULE BASIC CONFIGURATION
[V296W1 -###]

ELT-3020AP SERVICE MANUAL E-RAE ELECTRONICS
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ELT-3020AP RD(1) 00 04/03/31 15/55
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
7 ( S5V ) IS5V MAIN 5V Input
8 ( GND ) GND Ground
9 ( BRITE_ADJ ) O
BRIGHTNESS_ADJUST
LCD Brightness Adjustment
10 ( GND ) GND Ground
11 ( BKL_ON ) OBACKLIGHT_ON LCD Backlight ON
CON4
12(POWER_
ON/OFF ) OPOWER_ON/OFF POWER ON_OFF Control
1 ( GND ) GND Ground
2 ( LEDG ) OLED_GREEN GREEN LED CONTORL OUTPUT PORT
: High : Green LED On
3 ( LEDR ) OLED_RED RED LED CONTORL OUTPUT PORT
: High : Red LED On
4 ( IR ) I5V / 0V
IR RECEIVER SIGNAL INPUT PORT
5 ( GND ) GND Ground
CON2
6 ( VCC ) O5V / 0V OSD B/D 5V Output
1 ( POWER ) I5V / 0V POWER S/W PORT
:DC POWER ON_OFF
2 ( SOURCE ) SOURCE SELECT Input Source Selecting
3 ( MENU ) IMENU OSD MENU Display
4 ( CH+ ) ICHANNEL UP TV CHANNEL CONTROL(UP)
5 ( CH-) ICHANNEL DOWN TV CHANNEL CONTROL(DOWN)
6 ( VOL+ ) IVOLUME UP SOUND CONTROL(VOLUME UP)
7 ( VOL-) IVOLUME DOWN SOUND CONTROL(VOLUME DOWN)
CON1
8 ( GND ) GND Ground

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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)
OMSP_L_OUT1 MSP LEFT Sound Output1
5 (MSP_R_OUT1)
OMSP_R_OUT1 MSP RIGHT Sound Output1
6 (GND) GND Ground
7 (MSP_L_OUT2)
OMSP_L_OUT2 MSP LEFT Sound Output2
8 (MSP_R_OUT2)
OMSP_R_OUT2 MSP RIGHT Sound Output2
9 (GND) GND Ground
10 (AFT) IAFT
11 (TUNER_SIF) ITUNER_SIF RF TV Sound Input
12( (GND) GND Ground
13 (TUNER_CVBS)
ITUNER_CVBS RF TV Video Input
14 (GND) GND Ground
15 (S_MUTE) OS_MUTE Sound Mute
16 (AMP_ST-BY)
OAMP_ST-BY
17 (HEAD_MUTE)
IHEAD_MUTE Head Phone Mute
18 (GND) GND Ground
19 (SDA3) SDA3 I2C Protocol
J5
20 (SCL3) SCL3 I2C Protocol
1 (VCC5) VCC5 Power Supply +5.0V
2 (VCC5) VCC5 Power Supply +5.0V
3 (SCART_R) ISCART_R Full Scart Red Input
4 (SCART_G) ISCART_G Full Scart GREEN Input
5 (SCART_B) ISCART_B Full Scart BLUE Input
6 (SCART_FB) ISCART_FB
7 (GND) GND Ground
8(FSCART_CVBS_IN)
IFSCART_CVBS_IN Full Scart Composite Input
9 (GND) GND Ground
10(HSCART_CVBS_IN)
IHSCART_CVBS_IN Half Scart Composite Input
11 (GND) GND Ground
12 (FSCART_ID)
IFSCART_ID Full Scart Check Signal Input
13 (HSCART_ID)
IHSCART_ID Half Scart Check Signal Input
14 (GND)
IGND Ground
15 (F_CVBS_OUT)
OF_CVBS_OUT Full Scart Composite Output
16 (GND) GND Ground
17 (H_CVBS_OUT)
OH_CVBS_OUT Half Scart Composite Output
18 (GND) GND Ground
J1
19(F_CVBS_L_OUT)
OF_CVBS_L_OUT Full Scart Composite Left Sound Output

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20(F_CVBS_R_OUT)
OF_CVBS_R_OUT Full Scart Composite Right Sound Output
21 (GND) GND Ground
22(H_CVBS_L_OUT)
OH_CVBS_L_OUT Half Scart Composite Left Sound Output
23(H_CVBS_R_OUT)
OH_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) IF_SC_L_IN Full Scart Left Sound Input
3 (F_SC_R_IN) IF_SC_R_IN Full Scart Right Sound Input
4 (GND) GND Ground
5 (H_SC_L_IN) IH_SC_L_IN Half Scart Left Sound Input
6 (H_SC_R_IN) IH_SC_R_IN Half Scart Right Sound Input
7 (GND) GND Ground
8 (AV_CVBS_IN)
IAV_CVBS_IN Composite Video Input
9 (AV_CVBS_DET)
IAV_CVBS_DET Composite Check Signal Input
10 (GND) GND Ground
11 (SVIDEO_L_IN)
ISVIDEO_L_IN SVIDEO_Left Sound Input
12 (SVIDEO_R_IN)
ISVIDEO_R_IN SVIDEO_Right Sound Input
13 (GND) GND Ground
14 (PC_L_IN) IPC_L_IN Analog RGB Left Sound Input
15 (PC_R_IN) IPC_R_IN Analog RGB Right Sound Input
16 (GND) IGND Ground
17 (DTV_L_IN) IDTV_L_IN Component(DTV) Left Sound Input
18 (DTV_R_IN) IDTV_R_IN Component(DTV) Right Sound Input
19 (GND) GND Ground
20 (DVD_L_IN) IDVD_L_IN Component(DVD) Left Sound Input
21 (DVD_R_IN) IDVD_R_IN Component(DVD) Right Sound Input
22 (GND) GND Ground
23 (AV_L_IN) IAV_L_IN Composite Left Sound Input
J2
24 (AV_R_IN) IAV_R_IN Composite Right Sound Input

ELT-3020AP SERVICE MANUAL E-RAE ELECTRONICS
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1 (NC) NC NC
2 (ANLOG_DIM)
BRIGHTNESS_ADJUST
LCD Brightness Adjustment
3 (BLK_ON) BACKLIGHT_ON LCD Backlight ON
4 (GND) GND Ground
5 (ODD0-) ORX0-Negative LVDS Differential data input. Channel 0
6 (ODD0+) ORX0+ Positive LVDS Differential data input. Channel 0
7 (GND) GND Ground
8 (ODD1-) ORX1-Negative LVDS Differential data input. Channel 1
9 (ODD1+) ORX1+ Positive LVDS Differential data input. Channel 1
10 (GND) GND Ground
11 (ODD2-) ORX2-Negative LVDS Differential data input. Channel 2
12 (ODD2+) ORX2+ Positive LVDS Differential data input. Channel 2
13 (GND) GND Ground
14 (ODDCLK-) ORXCLK-Negative LVDS Differential Clock input.
15 (ODDCLK+) ORXCLK+ Positive LVDS Differential Clock input.
16 (GND) GND Ground
17 (ODD3-) ORX3-Negative LVDS Differential data input. Channel 3
18 (ODD3+) ORX3+ Positive LVDS Differential data input. Channel 3
19 (GND) GND Ground
20 (NC) NC NC
21 (NC) NC NC
22 (NC) NC NC
23 (GND) GND Ground
24 (GND) GND Ground
25 (GND) GND Ground
26 (VCC 5V) VCC +5.0V Power Supply
27 (VCC 5V) VCC +5.0V Power Supply
28 (VCC 5V) VCC +5.0V Power Supply
29 (VCC 5V) VCC +5.0V Power Supply
CON5
30 (VCC 5V) VCC +5.0V Power Supply

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OSD MENU(FACTORY)
CALIBRATION MENU
FACTORY MODE
n 1. Calibration
: Automati
c adjustment of white balance for Analogue input (PC) and Component2 (DTV)
input.
n 2. Option Table 0002
: Initial installation of OSD.
n 3. Color control
: Adjustment of contrast and brightness for scaler generating power.
n 4. PW565
: Adjustment of contrast and brightness for scaler input port (CH1 or CH2).
n 5. VPC3230-MAIN
: Value adjustment for video decoder’s brightness and contrast, color tickness in
the main window.
n 6. VPC3230-SUB
: Value adjustment for video decoder’s brightness and contrast, color tickness in
the sub window.
n 7. ADC
: Value adjustment for brightness and contrat, color thickness of analogue RGB,
Y,Pb,Pr of AD9883 A/D convertor.
n 8. Heatrun
: The mode when you do aging.
n 9. Version
: It shows the information of Firmware version and Panel.
n 10. Setup
: Installation of TTX language and video, protocol, logo.

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CALIBRATION MENU
CALIBRATION MENU
n 1. PC Calibration
: Automatic adjustment as the fittest status of white balance for analogue input (PC)
n 2. DTV Calibration
:Automatic adjustment as the fittest status of white balance for component2 (DTV)
input.