Erisson 8T84E Schematics

SERVICE MANUAL

8T84 CHASSIS

Design and specifications are subject to change without prior notice. ( ONLY REFERRENCE)

ENGINEER BY: CHECKED BY: PPROVED BY:

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Contents

Contents------------------------------------------------------------Technical specification-------------------------------------------Chassis Block Diagram-------------------------------------------Service Adjustments ----------------------------------------------Operation Instructions

---------------------------------------------

Circuit Diagram-----------------------------------------------------

2 3-8 9 10-11 12-26 27

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TECHNICAL SPECIFICATION

1.General Specification

Y Cb Cr/Y Pb Pr

5.

No

1. System 1) PAL BG/DK/I

2. Channel 1) VHF : K1～S7

3. Input Voltage

4. Market

5. Panel Size(inch) 15”/17’’/20’’

6. Tuning System FS

7. Operating Environment 1) Temp : 0 ~ 40 deg

8. Storage Environment 3) Temp : -20 ~ 50 deg

Item Specification Remark

2) SECAM BG/DK/L/L’

3) NTSC M *

CATV : S8～S38 UHF : S39～DS57

AC 110 ~ 240 V，50/60Hz

EUROPE, East ASIAN, Australian

2) Humidity : 40 ~ 85 %

4) Humidity : 30 ~ 90 %

2. Feature and Function

No

1. TELETEXT 10page

2. REMOCON RC5 Code

3. FULL SCART Input 1

4. Component input 1

VGA

6. 2 Carrier Stereo YES

7. NICAM Stereo Y

8. 2 Carrier Dual Y

9. NICAM Dual Y

10. SSC (Split Screen) Mode Option DUAL TXT PAGE

11. Headphone Y

12. 16:9 Mode Y

13. Noise Reduction Y

14. Progressive Scan(CTI) Option

15. Comb Filter Y

16. Tone control (Bass/ Treble/ Balance) Y

17. Customer LOGO Y

18. 5 Band Equalizer Y

Item Specification Remark

(480i/p, 720p, 1080i)

1

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TECHNICAL SPECIFICATION

9.

No

19. Clock(Remind timer / Wake timer) Y

20. Child Lock Y

21. 4 Picture/Sound Mode Y

22. OSD Language English/French/Deutsch Others can be added

23. TXT Language East/west/pan

24. ATS Y

Item Specification Remark

European/Cyrillic/Greek

3. Safety and Regulation

No

1. Force Stability – Incline Plane Tip Test deg

2. Force Stability – Level Tip Test N

3. Isolation Gap, AC-AC/ AC-DC 3 mm

4. Isolation Gap, insulation- no insulation 6 mm

5. Power Consumption, Max 40 75 W 15’’/20’’ IEC 65

6. Power Consumption, Stand by 1 3 W

7. Power Consumption, Current harmonics IEC 107-1

8. Dielectric Voltage 3 kV at 10 mA, for 1 minutes Isolation Resistance 4 MΩ

10. Leakage Current 0.7 mApp

11. Power Cord Captivity 15 kg

12. Flammability – Back Cover V0 UL94

13. Sharp Edge none

14. UL Compliance

15. FCC Compliance

16. CDRH Radiation Compliance

17. CSA Compliance

18. CEB Compliance

19. CE Compliance Y

20. CB Compliance Y

Item Min Typ Max Unit Remark

4. Video

No

1. Linearity Distortion, Vertical %

2. Linearity Distortion, Horizontal %

3. Trapezoidal Distortion, Vertical %

4. Trapezoidal Distortion, Horizontal %

5. Over Scan, Vertical %

6. Over Scan, Horizontal %

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Item Min Typ Max Unit

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Remark

TECHNICAL SPECIFICATION

No

7. Brightness, Maximum 100 cd/m

8. Video Noise Limited Sensitivity(@S/N=30db) VHF

9. Video Noise Limited Sensitivity(@S/N=30db) UHF

10. Selectivity –1.5M 35 dB

11. Selectivity +8M 40 dB

12. Tuning Range -0.75 1 MHz

13. Resolution Horizontal 300 Lines

14. Resolution Vertical 400 Lines

15.

Item Min Typ Max Unit

2

48 dBm

51 dBm

5. Chroma

No

1. Purity (mislanding) um

2. Convergence mm

3. White Balance, X axis 0.280 0.288 0.296

4. White Balance, Y axis 0.297 0.295 0.303

5. White Balance, Color Temperature

6. Color Sensitivity 45 dB

7. Color Burst Lock-in Range +/-3

8. Color Killer Sensitivity -80 dBm

Item Min Typ Max Unit

9000 kdeg 9000kdeg(288,295)

13000kdeg(268,273) 9300(281,311) 6500(313,329)

Hz

00

Remark

6. Audio

No

1. Audio Noise Limited Sensitivity, VHF-L 42 dBm

2. Audio Noise Limited Sensitivity, VHF-L 42 dBm

3. Audio Noise Limited Sensitivity, UHF 48 dBm

4. Buzz (S/N Ratio) 40 dB

5. Min. Volume Hum 20 mV

6. Distortion 10 %

7. Audio Output, L/R,at 7 % THD 4 W

8. Audio Output, Center X W

9. Audio Output, Woofer X W

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Item Min Typ Max Unit

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Remark

TECHNICAL SPECIFICATION

No

Item Min Typ Max Unit

10. Stereo Separation 25 dB

11. Speaker Impedance 8or4 ohm

12. Speaker Power Rating 4W W

7. Panel

No

1. Aspect ratio 4:3 16:9 4:3

2. Resolution 1024

3. Pixel Pitch 0.30

4. No. of Colors 16.2

5. Brightness 400 450 450

6. Contrast Ratio 350 400 350

7. Viewing angle X axis left 75 88 88

8. Viewing angle X axis right 75 88 88

9. Viewing angle Y axis up 50 88 88

10. Viewing angle Y axis down 75 88 88

Item 15.1’’ 17.1’’ 20.1’’ Unit

x768

x

0.30

1280 x768

0.291 x0.29 1

16.7M 16.7M

640 x480

0.6375 x0.637 5

@60Hz

mm

M

cd/m

2

degre e degre e degre e degre e

Center point

CR>5

Remark

11. Life time 50000 50000 50000 hours

12. Response time(rise) 7 12 15 ms

13. Response time(decay) 18 13 15 ms

8. External Interface

No

1. Video Input Level 0.85 1 1.15 Vpp EN-50049

2. Video Input Frequency Response 4.5 MHz

3. Video Input S/N 40 dB

4. Audio Input Level 0.4 0.5 0.6 Vrms

5. Audio Input Frequency Response 0.1 7 kHz

6. Audio Input S/N 40 dB

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Item Min Typ Max Unit

Remark

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TECHNICAL SPECIFICATION

No

7. Audio Input Distortion 2 %

8. Audio Input Dynamic Range 2 V

9. Video Output Level 0.85 1 1.15 Vpp EN-50049

10. Video Output Frequency Response 3.8 MHz

11. Video Output S/N 40 dB

12. Audio Output Level 0.4 0.5 0.6 Vrms

13. Audio Output Frequency Response 0.1 7 kHz

14. Audio Output S/N 40 dB

15. Audio Output Distortion 2 %

16. Video Input Level, R/G/B Vpp

17. Video Input Level, Component(Y, PB, PR)

18. RGB Input Resolution, Vertical pixel

19. RGB Input Resolution, Horizontal pixel

20. RGB Input Horizontal Frequency kHz

21. RGB Input Frame Rate Hz

Item Min Typ Max Unit

0.6 0.7 0.8 Vpp 75 ohm

Remark

9. The others

No

1. Search Sensitivity -95 -90 -85 dBm

2. Heating Time 7 sec

3. Soft Ware Functionality Test SMI Specification

4. REMOCON Working Sensitivity, Straight 8 m

5. REMOCON Working Sensitivity, T/B/L/R 6 m 30 degree

6. Closed Caption Sensitivity dBm

7. Teletext Sensitivity -70 dBm

8. Resonance of unit (Sweep freq : 50 ~

1000)

9. Clock, real time gain or loss (sec per day) sec

10.

Item Min Typ Max Unit

None

Remark

10. Customer Menu Setup (as shipped condition

No

1. PSM Movies

2. SSM Music

3. Volume 30

4. Mute Off

5. Input Mode RF

6. Customer Menu Language English customer define

Item Min Typ Max Unit

Remark

-7-

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TECHNICAL SPECIFICATION

No

7. Avl On

8. Sleep Timer Off

9. Auto Sleep Off

10. Blue Back ON

11. Surround On

12. TXT Off

13.

Item Min Typ Max Unit

Remark

11. Reliability

No

1. ESD 4 kV IEC-1000-4-2

2. EFT/Burst

3. Surge Immunity 4 kV IEC-1000-4--5

4. Voltage Dip Test, 10ms 30 % IEC-1000-4-11

5. Voltage Dip Test, 100ms 100 % IEC-1000-4—11

6. Laser arcing Test times each Polarization

Item Min Typ Max Unit

2

kV IEC-1000-4-4

Remark

7. CST

8. Abnormal Test

9. Operation Temperature 0 25 45 deg

10. Operation Humidity 10 90 %

11. Storage Temperature -20 60 deg

12. MTBF (Confidence Level : 90 %) 10000 hours

13. Ship Test

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Chassis Block Diagram

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Service Adjustments

1. Preface

This Adjust Manual is only used for 8T84 LCD TV.

2. Specify

2.1 This TV operates onDC supply ,so through AC- DC ADAPTER to socket at

the back of the TV.The power is +12VDC.

2.2 Insert the mains plug in the wall socket having a mains voltage of 100~240V AC, 50/

60Hz.

2.3 Working condition: if no show clearly, work in the following state:.

1) Tempurature : 25 5

2) Relative humidity : 60% 20%

2.4 The receive set should be adjusted after working 20 minutes if no prior notice.

2.5 Equipments used

--- Multimeter

Max Input Current: Up to 1 A/Max input Voltage:500Vdc

Measurement Range: 10Mvr~100Vdc/Accuracy :0.03%

--- Oscilloscope:

Frequency band: up to 20M/input impedance: up to 1

Input Capacitance: Less than 30Pf/ Max Input Voltage:250V

--- PC

XGA(1024X768 60Hz)

2.6 Signal

60~80dBu standard color bar from Pm 5418 or from factory central signal generator is

used if no prior notice.

3. Software

Notice

software using in this chassis is stored in FLASH ROM. The flash ROM is re-writable.

Procedure relates to functions. Difference function chassis should be written differen

-ce edition procedure.

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Service Adjustments

4. Chassis check

4.1 The chassis should be clear and no short or open circuit, no missing components or

wrong components insertion.

4.2 Check the input and output pins of 12V,5V ,3.3V,1.8V , REGULATOR IC

(The C step of 8360,3430,8330,7096,7097),

4.3 Connect the chassis to LCD panel on the adjust equipment and power on, confirm

5V,3.3V, from the regulators are OK.

4.4. Confirm OSD is OK,blue ground appears is no signal.

4.5 Confirm remote control functions and all local keys control function are OK. The set

can enter standby states and exit to normal work status.

4.6 Confirm search function, store all factory signal, confirm picture and sound of any

pattern are Ok.

4.7 RF-AGC adjustment

Inputting the color signal of 70dB(VHF-H wave band),pressing the factory menu botton

to enter factory menu,adjusting RFAGC value to AGC voltage=2.7V which is in one pin

of tuner.

4.8 Confirm sound and picture of SCART is ok at input and output,the sound and

picture of YUV and PC are ok at input.

4.9 After complete assembly set TV to snow dot mode to aging line.

5. Complete check

5.1 Confirm H,V repeat rate and liner are OK in every state picture of TV,AV PC and so on.

5.2 Check white balance(adjustment)

5.3 Check picture and sound in all the TV mode the weak and strong signal; ch

5.4 Confirm NICAM function is OK.

5.5 Confirm Teletext function is OK.

5.6 Confirm sound and picture of SCART is ok at input and output,the sound and

ck picturein low and high voltage power input mode.

e

CONFIRM

are OK. Check picture and sound under

NO SHORT CIRC

-UIT TO Gnd.

picture of YUV and PC are ok at input.

5.7 Confirm remote control and local control functions are OK,we can set the TV to standby

mode then normal mode to confirm if the set can work properly.

6. Final setting

6.1 PICTURE :MOVIES

6.2 VOLUME :30

6.3 BALANCE :0

6.4 CCD : OFF

6.5 SLEEP TIME :0

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Control Location

Insert The Batteries

1

Remove the battery cover by pressing it and sliding it down.

2

Insert the two 1.5V (AAA size) batteries making sure the polarity (+ or -) of the batteries matches the polarity marks inside the unit.

3

Replace the battery cover by sliding it in until you hear a click sound.

SETUP

Precautions when using batteries

Do not use old and new batteries together. Do not use different types of batteries (for example, Manganese and Alkaline batteries)together. Note that there are chargeable and non-chargeable batteries. Do not attempt to charge non-chargeable batteries. Remove the batteries from the remote control unit if you do not intend to use the unit for a long time.

Precautions when using the remote control unit

Do not drop the remote control unit. Do not subject the remote control unit to physical shocks. Keep the remote control unit dry. Wetting it may cause the unit to malfunction. Replace the batteries with new ones when operation of the unit deteriorates.

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