Elenberg LTV-1521 Schematic

ELENBERG LTV-1521

CABINET FRONT

SPEAKER

FUNCTIONAL KNOB

BRACKET

SHIELD BOX

INTEFACE BOARD

CABINET BACK

CONNECTION BOARD

ROTATE COVER

BASE

BASE BOARD

SCREEN

LENS

BRACKET(LEFT)

BRACKET(RIGHT)

REMOTE HANDSET

KK-Y298

34003794

32001259

SPEAKER YDT6090N-6rc(8Ω/4W)

21000391

FUSE 20N-020H/L-2A/250V

15"L.C.D SVA150XG04TB

31003232

Spare Parts List (LTV -1521)

DescriptionItem QTY

(Код ЗЧД=Номер ЗЧД) 1 36032541 2 1 36032509 1 37009817 1 37009832 1 37009814 1 36029368 1 37006803 1 36022512 1 36032508 1 36032510 1 1 36032506 1 37009819 1 37009830

AC POWER JSI-150206(LF)TUNER AFT1/3100

TOUCH SWITCH KFC-A06-L4-4.5×6.5-4.3B 23000611 IR REMOTE CONTROL RECEIVER SMD ZENERDIODE BZV55-C/8V2-PHILIPS 16002081

Part №

29001071

27001227

MAIN BOARD 090*KLC-1521QS-2-01/00/A 35009717 KEY BOARD 090*LC-TM1509S01/00/A 35009707 REMOTE CONTROL RECEIVER BOARD 35009433 REMOTE CONTRO BOARD 090*Y27401/01-T/A 35009435 FRONT CABINET200*KLC1521US10/102P 36032541 BACK CABINET 202*KLC1521US10/102P 36032505 MODEL PLATE 412*KLC-1521QS10/02-KONKA 36033736 *FUNCTION BUTTON 291*KLC1521US10/101D 36032509 *POLYFOAM L 300*KLC1521US10/00 39018938 *POLYFOAM R 300*KLC1521US20/00 39018943 *PACKINGBAG310*080080/034R-800X800X0.025 39011083 *CARTON BOX 510*KLC-1521QS10/03 39020551 *MANUAL570*KLC-1521QS/02-ENGLISH 39020552 SOCKET 21 SCART CS-2110VEP 25002363 VGA SOCKETDP-001-01EP 25002364 *STEREO JACK CKX-035-114C-01EP 25002362

IMPORTANT SERVICE SAFETY INFORMATION

Operating the receiver outside of its cabinet or with its back removed involves a shock hazard. Work on these

models should only be performed by those who are thoroughly familiar with precautions necessary when working on

high voltage equipment.

Exercise care when servicing this chassis with power applied. if carelessly contacted, can cause serious shock or

result in damage to the chassis. Maintain interconnecting ground lead connections between chassis, escutcheon, picture

tube dag and tuner when operating chassis.

When it is necessary to make measurements or tests with AC power applied to the receiver chassis, an Isolation

Transformer must be used as a safety precaution and to prevent possible damage to transistors. The Isolation

Transformer should be connected between the TV line cord plug and the AC power outlet.

It is important to maintain specified values of all components and anywhere else in the received that could cause

a rise in operating supply voltages. No changes should be made to the original design of the receiver.

Components shown in the shaded areas on the schematic diagram and/or identified by in the replacement parts

list should be replaced only with exact factory recommended replacement parts. The use of unauthorized substitute

parts man creates may create shock, fire, or other hazards.

Before returning the receiver to the user, perform the following safety checks:

1. Inspect all lead dress to make certain that leads are not pinched or that hardware is not lodged between the chassis

and other metal parts in the receiver.

2. Replace all protective devices such as non-metallic control knobs, insulating fish papers, cabinet backs, adjustment

and compartment covers of shields, isolation resistor-capacitor networks, mechanical insulators etc.

3. To be sure that not shock hazard exists, a check for the presence of leakage current should be made at each exposed

metal part having a return path to the chassis (antenna, cabinet metal, screw heads knobs and/or shafts, escutcheon,

etc.) in the following manner.

Plug the AC line cord directly into a 110V/220V/240V, AC receptacle. (Do not use an Isolation Transformer

during these checks.) All checks must be repeated with the AC line cord plug connection reversed. (If necessary, a

non-polarized adapter plug must be used only for the purpose of completing these checks.)

PLEASE READ BEFORE ATTEMPTING SERVICE

1. Use an Isolation Transformer when performing any service on this chassis.

2. Never disconnect any leads while receiver is in operation.

3. Disconnect all power before attempting any repairs.

4. Do not short any position of the circuit while the power is on.

5. For safety reasons, replace components any with identical replacement parts (SEE PARTS LIST).

6. Before alignment, warm up the TV for at least 30 minutes.

7. When removing a PCB or related component, after unfastening or changing a wire, be sure to put the

wire back in its original position.

8. Inferior silicon grease can damage IC's and transistors. When replacing IC's and transistors, use only

specified silicon grease. Remove all old silicon when applying new silicon.

9. Before removing the anode cap, discharge eletricity because it contains high voltage.

A. SPECIFICATION

System : PAL- D/K，I，B/G；SECAM-L/L’，B/G，D/K Channel : 45.25MHz～855.25MHz IF Frenquency Video： 38.9MHz

Chroma： 34.47MHz

Sound： 32.4 MHz（DK）

33.4MHz（BG）

32.9 MHz（I） Audio output power 10%THD 1W×2 Antenna Impedance 75Ω(Unbalance) Power Consumption 36W Power Supply : AC~100-240V,50/60Hz

KLC-1521QS

item Port list

1 RF cable 2 SCART 3 PC VGA input 4 Y、Pb/Cb、Pr/Cr

5 Video

6 Audio input 7 Headphone audio output 8 Power port

ADJUSTMENT MANUAL

TEST NOTE

1. Please follow the pointed test steps and choose the right test equipment to conduct

adjustment, otherwise good effect of Unit could not be obtained. The unit should be warmed up for 30 minutes before adjustment and every parameter should be adjusted repeatedly till the optimum value obtained, the pointed voltage value should be ensured during test to get satisfied test result.

2. Test environment

1) Temperature 15°C

～35°C

2) Relative Humidity 45%～75%

3) Air pressure 86KPa～106KPa

3 Test equipments（The following equipment should be calibrated before testing）

1) Computer 1 set

2) Multi-meter (VICTOR VC9801) 1 set

3) Video Signal Generator (Chroma Model 2227/2327) 1 set

4) Color Analyzer (Chroma Model 7120 ) 1 set

5) DDC card (DYNACOLOR, INC D8330) 1 slice

6) TV Video Signal Generator (FLUKE PM54200) 1 set

4 Factory mode adjustment

4.1 Enter factory mode adjustment Using the remote control, press Menu button once first , then press RECALL button five times,and you can see manufacture menu on the LCD panel.

4.2 Factory menu operation method Press the PROG

▲/▼ button to selection the sub menu of factory menu（including F、E、

UOCⅢ、Temp）, and press the VOL ► to enter the sub menu and setting the value.

4.3 Exit the factory menu Press the MUTE button again and again or turn off the TV, it can exit the factory menu.

4.4 AGC adjustment

In TV mode, receive 60dB split field signal.Enter factory mode menu “UOCⅢ” item, press

PROG

▲/▼ to select “RF AGC” ，then use VOL◄/► to adjust the item until the voltage of Pin

1 of N100 to be about 2.5V±0.2V, then noise wave of the picture point disappears.

4.5 White calibration adjustment

4.5.1 Receive black or white signal under AV or PC mode, adjusting brightness and contrast to set the brightness to 15Nit in dark area and 90 Nit in bright area.

4.5.2 Adjust white balance.Press MENU button once, then press RECALL button five times to enter factory menu, select “Temp” Menu, Adjust Red 0-100 Green Blue

0-100

4.5.3 Adjusting chromaticity coordinates of black and white to fit the requirement, or plug automatic calibration system to adjust white calibration automatically.

BLOCK DIAGRAM

SCART CVBS，

VIF

SIF

SCART RGB AUDIO L，R

MAIN IC

TDA15021H

Signal Block Diagram

N100

Tuner

+12V

Supply

AGC

X101

M3953

X102

M9453

LED R,G

N401

KEY B1、B0

PWRON

DDC/HWI2C

Earphone

speaker

port

Port

Audio

N201

TDA1517

+12V

Supply

Audio 2

L,R

Y,Pb/Cb,Pr/Cr

VGA

Audio IN

VGA R,G,B

VGA Hs,Vs

VGA-CLK

VGA-DAT

AMP_L

AMP_R

AU2IN_L,R

AU3IN_L,R

UOC R,G,B

N303

PI5V330

Y_G Pb_B Pr_R

N301

PI5V330

YUVHs

YUVVs

N501

MST518

SCL SDA

M_Rst

M_CLK

M_SDA

M_CS

To N401

N302

24LC21

BKLON

VCC-5Ua

VCC-3.3VUSB

VCC+1.8a VCC+1.8b

VCC-PAN

LCD

PANEL

3.3V Supply

2.5V Supply

DDC/HWI2C

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