Daewoo CP21S8 Series Manual de usuario

Service Manual

Caution

: In this Manual, some parts can be changed for improving. their

performance without notice in the parts list. So, if you need the

latest parts information, please refer to PPL(Parts Price List)in

Service Information Center.

S/M No.TCP202SEF0

CHASSIS : CP-202S

MODEL : CP21S7***

CP21S8***

May 2010

CP-202S Service Manual

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CONTENTS

DOCUMENT HISTORY 4

1 MAIN FEATURES 5

1.1 SPECIFICATIONS 5

1.1.1 GENERAL 5

1.1.2 EURO-SCART 1 (21 Pin) 5

1.1.3 EURO-SCART 2 (21 Pin) 6

1.2 CHANNEL/FREQUENCY TABLE 7

2 SAFETY INSTRUCTION 9

3 ALIGNMENT INSTRUCTIONS 10

3.1 MICROCONTROLLER CONFIGURATION : SERVICE MODE 10

3.2 SERVICE MODE NAVIGATION 10

3.3 MICROCONTROLLER CONFIGURATION : OPTION BITS 10

3.4 OPTION 1 11

3.5 OPTION 2 11

3.6 NVM DEFAULT SETTING 12

3.7 TV SET ALIGNMENT 14

3.7.1 G2 ALIGNMENT 14

3.7.2 WHITE BALANCE 14

3.7.3 FOCUS 14

3.7.4 VERTICAL GEOMETRY 14

3.7.5 HORIZONTAL PICTURE CENTRING 14

3.7.6 EAST / WEST CORRECTION 14

4 IC DESCRIPTION 15

4.1 UOCTOP SERIES 15

4.1.1 IC MARKING AND VERSION 15

4.1.2 BLOCK DIAGRAM 16

4.1.3 PINNING 17

4.1.4 FEATURES 19

4.2 LA42205 STEREO AUDIO AMPLIFIER 21

4.2.1 FEATURES 21

4.2.2 BLOCK DIAGRAM AND PINNING 22

4.3 LA78040 VERTICAL AMPLIFIER 23

4.3.1 LA78040 23

4.4 24WC16 -16 KB EEPROM 24

4.5 STR–W6754 25

4.5.1 GENERAL DESCRIPTION 25

4.5.2 FEATURES 25

4.5.3 BLOCK DIAGRAM 25

4.5.4 PIN DESCRIPTION 26

4.5.5 CONTROL PART - ELECTRICAL CHARACTERISTICS 26

4.5.6 MOSFET ELECTRICAL CHARACTERISTICS 26

CP-202S Service Manual

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5 CIRCUIT DESCRIPTION 27

5.1 BLOCK DIAGRAM 27

6 SERVICE PARTS LIST 28

6.1 CP21S8*** 28

7 EXPLODED VIEW 34

7.1 CP21S7*** 34

7.2 CP21S8*** 35

8 PRINTED CIRCUIT BOARD 36

8.1 MAIN TOP 36

8.2 MAIN BOTTOM 37

9 SCHEMATIC DIAGRAM 38

CP-202S Service Manual

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DOCUMENT HISTORY

VERSION DATE COMMENTS

V1.00 Creation of document for project CP-202S 50Hz TV.

17/05/10

CP-202S Service Manual

-5-

MAIN FEATURES

1.1 SPECIFICATIONS

1.1.1 GENERAL

TV standard PAL - SECAM B/G D/K, PAL I/I, SECAM L/L’

Colour system Tuner PAL, SECAM

AV PAL, SECAM, PAL 60, NTSC M, NTSC 4.43

Sound system NICAM B/G, I, D/K, L,

FM 2Carrier B/G, D/K

Power consumption

Sound Output Power 4.5W x 2 at 60% mod, 10%THD

Speaker 10W 8 ohm x2

Teletext system 10 pages memory FASTEXT (FLOF or TOP)

Aerial input 75 ohm unbalanced

Channel coverage Off-air channels, S-cable channels and hyperband

Tuning system frequency synthesiser tuning system

Visual screen size

Channel indication On Screen Display

51cm

Program Selection 100 programmes

Aux. terminal

Remote Control R-59B02(AAA)

1.1.2 EURO-SCART 1 (21 Pin)

Pin Signal Description Matching value

1 Audio Output Right 0.5 Vrms, Impedance < 1 k , ( RF 60% Mod )

2 Audio Input Right 0.5 Vrms, Impedance > 10 k

3 Audio Output Left 0.5 Vrms, Impedance < 1 k , ( RF 60% Mod )

4 Audio Earth

5 Blue Earth

6 Audio Input Left 0.5 Vrms, Impedance > 10 k

0.7 Vp-p – 0.1V, Impedance 75

7 Blue Input 0.7 Vp-p

Slow Switching

Green Earth

N.C.

Green Input

TV : 0 to 2V, AV 16/9:4.5 to 7V, AV 4/3 : 9.5 to 12V, Impedance > 10 k

0.1V, Impedance 75

74W

EURO-SCART 1 : Audio / Video In/TV Out, R/G/B In, Slow and Fast switching.

EURO-SCART 2 : Audio / Video In/TV Out, S Video In, , Slow and Fast switching.

AV3 : Audio-Video Jack on side of cabinet(AV3 common with AV2).

Headphone jack (3.5 mm) on front of cabinet

CP-202S Service Manual

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0.7 Vp-p – 0.1V

1 Vp-p – 0.1V

0.3 Vp-p – 0.1V

1 Vp-p – 0.1V (Monitor output)

1 Vp-p – 0.1V

1.1.3

EURO-SCART 2 (21 Pin)

CP-202S Service Manual

-7-

CHANNEL EUROPE CCIR FRANCE GB(IRELAND) EAST OIRT

C01 46.25 - 45.75 49.75

C02 48.25 55.75 (L ) 53.75 59.25

C03 55.25 60.5 (L ) 61.75 77.25

C04 62.25 63.75 (L ) 175.25 85.25

C05 175.25 176.00 183.25 93.25

C06 182.25 184.00 191.25 175.25

C07 189.25 192.00 199.25 183.25

C08 196.25 200.00 207.25 191.25

C09 203.25 208.00 215.25 199.25

C10 210.25 216.00 223.25 207.25

C11 217.25 189.25 (LUX) 231.25 215.25

C12 224.25 69.25 (L ) 239.25 223.25

C13 53.75 76.25 (L ) 247.25 -

C14 - 83.25 (L ) 49.75 -

C15 82.25 90.25 57.75 -

C16 - 97.25 65.75 -

C17 183.75 - 77.75 -

C18 192.25 - 85.75 -

C19 201.25 - - -

C20 - - - -

C21 471.25 471.25 471.25 471.25

C22 479.25 479.25 4 79.25 479.25

C23 487.25 487.25 487.25 487.25

C24 495.25 495.25 495.25 495.25

C25 503.25 503.25 503.25 503.25

C26 511.25 511.25 5 11.25 511.25

C27 519.25 519.25 519.25 519.25

C28 527.25 527.25 527.25 527.25

C29 535.25 535.25 535.25 535.25

C30 543.25 543.25 543.25 543.25

C31 551.25 551.25 551.25 551.25

C32 559.25 559.25 559.25 559.25

C33 567.25 567.25 567.25 567.25

C34 575.25 575.25 575.25 575.25

C35 583.25 583.25 583.25 583.25

C36 591.25 591.25 591.25 591.25

C37 599.25 599.25 599.25 599.25

C38 607.25 607.25 607.25 607.25

C39 615.25 615.25 615.25 615.25

C40 623.25 623.25 623.25 623.25

C41 631.25 631.25 631.25 631.25

C42 639.25 639.25 639.25 639.25

C43 647.25 647.25 647.25 647.25

C44 655.25 655.25 655.25 655.25

C45 663.25 663.25 663.25 663.25

C46 671.25 671.25 671.25 671.25

C47 679.25 679.25 679.25 679.25

C48 687.25 687.25 687.25 687.25

C49 695.25 695.25 695.25 695.25

C50 703.25 703.25 703.25 703.25

C51 711.25 711.25 711.25 711.25

C52 719.25 719.25 719.25 719.25

C53 727.25 727.25 727.25 727.25

C54 735.25 735.25 735.25 735.25

C55 743.25 743.25 743.25 743.25

C56 751.25 751.25 751.25 751.25

C57 759.25 759.25 759.25 759.25

C58 767.25 767.25 767.25 767.25

1.2 CHANNEL/FREQUENCY TABLE

CP-202S Service Manual

-8-

CHANNEL EUROPE CCIR FRANCE GB(IRELAND) EAST OIRT

C59 775.25 775.25 775.25 775.25

C60 783.25 783.25 783.25 783.25

C61 791.25 791.25 791.25 791.25

C62 799.25 799.25 799.25 799.25

C63 807.25 807.25 807.25 807.25

C64 815.25 815.25 815.25 815.25

C65 823.25 823.25 823.25 823.25

C66 831.25 831.25 831.25 831.25

C67 839.25 839.25 839.25 839.25

C68 847.25 847.25 847.25 847.25

C69 855.25 855.25 855.25 855.25

C70 863.25 863.25 863.25 863.25

C71 69.25 - - -

C72 76.25 - - -

C73 83.25 - - -

C74 90.25 - - -

C75 97.25 - - -

C76 59.25 - - -

C77 93.25 - - -

S01 105.25 104.75 103.25 105.25

S02 112.25 116.75 111.25 112.25

S03 119.25 128.75 119.25 119.25

S04 126.25 140.75 127.25 126.25

S05 133.25 152.75 135.25 133.25

S06 140.25 164.75 143.25 140.25

S07 147.25 176.75 151.25 147.25

S08 154.25 188.75 159.25 154.25

S09 161.25 200.75 167.25 161.25

S10 168.25 212.75 - 168.25

S11 231.25 224.75 - 231.25

S12 238.25 236.75 - 238.25

S13 245.25 248.75 255.25 245.25

S14 252.25 260.75 263.25 252.25

S15 259.25 272.75 271.25 259.25

S16 266.25 284.75 279.25 266.25

S17 273.25 296.75 287.25 273.25

S18 280.25 136.00 295.25 280.25

S19 287.25 160.00 303.25 287.25

S20 294.25 - - 294.25

S21 303.25 303.25 - 303.25

S22 311.25 311.25 311.25 311.25

S23 319.25 319.25 319.25 319.25

S24 327.25 327.25 327.25 327.25

S25 335.25 335.25 335.25 335.25

S26 343.25 343.25 343.25 343.25

S27 351.25 351.25 351.25 351.25

S28 359.25 359.25 359.25 359.25

S29 367.25 367.25 367.25 367.25

S30 375.25 375.25 375.25 375.25

S31 383.25 383.25 383.25 383.25

S32 391.25 391.25 391.25 391.25

S33 399.25 399.25 399.25 399.25

S34 407.25 407.25 407.25 407.25

S35 415.25 415.25 415.25 415.25

S36 423.25 423.25 423.25 423.25

S37 431.25 431.25 431.25 431.25

S38 439.25 439.25 439.25 439.25

S39 447.25 447.25 447.25 447.25

S40 455.25 455.25 455.25 455.25

S41 463.25 463.25 463.25 463.25

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CP-202S Service Manual

2 SAFETY INSTRUCTION

WARNING: Only competent service personnel may carry out work involving the testing or repair

of this equipment.

X-RAY RADIATION PRECAUTION

1. Excessive high voltage can produce potentially hazardous X-RAY RADIATION. To avoid

such hazards, the high voltage must not exceed the specified limit. The nominal value of the

high voltage of this receiver is 18-26KV at max beam current. The high voltage must not,

under any circumstances, exceed 30KV. Each time a receiver requires servicing, the high

voltage should be checked. It is important to use an accurate and reliable high voltage

meter.

2. The only source of X-RAY Radiation in this TV receiver is the picture tube. For continued X-

RAY RADIATION protection, the replacement tube must be exactly the same type tube as

specified in the parts list.

SAFETY PRECAUTION

Potentials of high voltage are present when this receiver is operating. Operation of the receiver

outside the cabinet or with the back board removed involves a shock hazard from the receiver.

Servicing should not be attempted by anyone who is not thoroughly familiar with the

precautions necessary when working on high voltage equipment.

Discharge the high potential of the picture tube before handling the tube. The picture tube is

highly evacuated and if broken, glass fragments will be violently expelled.

If any Fuse in this TV receiver is blown, replace it with the FUSE specified in the Replacement

Parts List.

When replacing a high wattage resistor (metal oxide film resistor) in the circuit board, keep the

resistor 10 mm away from circuit board.

Keep wires away from high voltage or high temperature components.

This receiver must operate under AC 220 - 240 volts, 50 Hz. NEVER connect to a DC supply or

any other voltage or frequency.

PRODUCT SAFETY NOTICE

Many electrical and mechanical parts in this equipment have special safety-related

characteristics. These characteristics are often passed unnoticed by a visual inspection and the

X-RAY RADIATION protection afforded by them cannot necessarily be obtained by using

replacement components rated for higher voltage, wattage, etc. Replacement parts which have

these special safety characteristics are identified in this manual and its supplements, electrical

components having such features are identified by designated symbol on the parts list. Before

replacing any of these components, read the parts list in this manual carefully. The use of

substitutes replacement parts which do not have the same safety characteristics as specified in

the parts list may create X-RAY Radiation.

-10-

CP-202S Service Manual

3 ALIGNMENT INSTRUCTIONS

3.1 MICROCONTROLLER CONFIGURATION : SERVICE MODE

To switch the TV set into service mode please see instruction below.

1 - Select PR. number 91

2 - Adjust sharpness to minimum and exit all menus.

3 - Within 2 seconds press the key sequence : RED - GREEN - menu

The software version is displayed beside the word Service, e.g. “SERVICE V00.00”.

To exit SERVICE menu press menu key or Stand By key.

3.2 SERVICE MODE NAVIGATION

Pr Up/Down remote keys : cycle through the service items available.

Vol -/+ remote keys : Dec./Increment the values within range - Cycle trough option bits.

OK key : Toggle bits in option byte

3.3 MICROCONTROLLER CONFIGURATION : OPTION BITS

There are two option bytes available (16 bits in all). These option bits are available from FACTORY and SERVICE

mode. First find the OPTION1 or OPTION2 control, and then use the UP/DOWN and PLUS/MINUS keys on

the relevant remote keypad to control the bits. The table below shows the two option bytes available;

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