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S/M No. : TCP099FEF0
Service Manual
TV/DVD Combination
CHASSIS : CP-099F
Model : DDT-21H9ZZF
DDT-21H9ZZR
DDT-21H9ZZF
DDT-21H9ZZR
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 (http://svc.dwe.co.kr).
DAEWOO ELECTRONICS CO., LTD
http : //svc.dwe.co.kr May. 2002
Service Manual CP-099F
Contents
1- Main Features ------------------------------------------------------------------------------------------------------------------------- 4
1-1 Specifications ------------------------------------------------------------------------------------------------------------------- 4
1-2 Channel table -------------------------------------------------------------------------------------------------------------------- 6
1-3 ATSS sorting method ---------------------------------------------------------------------------------------------------------- 8
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 -------------------------------------------------------------------------------- 11
3-4 TV set Alignment -------------------------------------------------------------------------------------------------------------- 11
3-4-1 The adjustment of screen ------------------------------------------------------------------------------------------------ 11
3-4-2 The adjustment of focus -------------------------------------------------------------------------------------------------- 11
3-4-3 The adjustment of white balance --------------------------------------------------------------------------------------- 11
3-5 The adjustment of geometry -------------------------------------------------------------------------------------------------- 11
3-5-1 The adjustment of vertical center --------------------------------------------------------------------------------------- 11
3-5-2 The adjustment of vertical size ------------------------------------------------------------------------------------------ 12
3-5-3 The adjustment of vertical slope ---------------------------------------------------------------------------------------- 12
3-5-4 The adjustment of S-correction ----------------------------------------------------------------------------------------- 12
3-5-5 The adjustment of horizontal center ------------------------------------------------------------------------------------ 12
3-5-6 The adjustment of horizontal width ------------------------------------------------------------------------------------ 13
3-5-7 The adjustment of pincusion -------------------------------------------------------------------------------------------- 13
3-5-7-1 The adjustment of parabola ------------------------------------------------------------------------------------------ 13
3-5-7-2 The adjustment of corner --------------------------------------------------------------------------------------------- 13
3-5-7-3 The adjustment of H.parabola ---------------------------------------------------------------------------------------- 13
3-5-7-4 The adjustment of H.bow --------------------------------------------------------------------------------------------- 14
3-5-7-5 The adjustment of EW TRAPEZIUM ------------------------------------------------------------------------------ 14
3-6 The adjustment of RF AGC --------------------------------------------------------------------------------------------------- 14
3-7 Setting the conditions for finished products -------------------------------------------------------------------------------- 14
4- IC description ------------------------------------------------------------------------------------------------------------------------- 15
4-1 VCT383XA TV signal processor - Teletext decoder with embedded 8 bit - Controller --------------------------- 15
4-1-1 Block diagram of the VCT ---------------------------------------------------------------------------------------------- 15
4-1-2 TV-signal Processor ------------------------------------------------------------------------------------------------------ 15
4-1-3 -Controller ---------------------------------------------------------------------------------------------------------------- 16
4-1-4 Teletext Features ---------------------------------------------------------------------------------------------------------- 16
4-1-5 Display OSD Features ---------------------------------------------------------------------------------------------------- 17
4-1-6 Audio Features ------------------------------------------------------------------------------------------------------------ 17
4-1-7 General Features ---------------------------------------------------------------------------------------------------------- 17
4-1-8 Data Capture --------------------------------------------------------------------------------------------------------------- 17
4-1-9 Data Capture Features ---------------------------------------------------------------------------------------------------- 17
4-1-10 TV processor version and -Controller capacity -------------------------------------------------------------------- 18
4-1-11 IC marking and version ------------------------------------------------------------------------------------------------- 18
4-1-12 Pinning -------------------------------------------------------------------------------------------------------------------- 18
4-2 MSP341 x Multistandard Sound Processor --------------------------------------------------------------------------------- 21
4-2-1 Basic Features of the MSP341x ----------------------------------------------------------------------------------------- 21
4-2-1-1 Demodulator and NICAM Decoder Section ----------------------------------------------------------------------- 21
4-2-1-2 DSP-Section (Audio Baseband Processing) ----------------------------------------------------------------------- 22
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Service Manual CP-099F
4-2-1-3 Analogue Section ------------------------------------------------------------------------------------------------------ 22
4-2-1-4 NICAM plus FM/AM-Mono ----------------------------------------------------------------------------------------- 22
4-2-1-5 German 2-Carrier System (DUAL FM System) ------------------------------------------------------------------- 22
4-3 TDA9886 IIC-bus controlled single/multi standard algnment-free IF-PLL -------------------------------------------- 25
4-3-1 DISCRIPTION ------------------------------------------------------------------------------------------------------------ 25
4-3-2 FEATURES ---------------------------------------------------------------------------------------------------------------- 25
4-3-3 PINNING ------------------------------------------------------------------------------------------------------------------ 25
4-4 TDA894xJ Stereo Audio Amplifer ------------------------------------------------------------------------------------------ 27
4-1-1 Features -------------------------------------------------------------------------------------------------------------------- 27
4-5 TDA835xJ Vertical Amplifier ------------------------------------------------------------------------------------------------ 29
4-5-1 TDA8358J ----------------------------------------------------------------------------------------------------------------- 29
4-6 TEA5101B ---------------------------------------------------------------------------------------------------------------------- 30
4-7 24C16 - 16 Kb EEPROM ----------------------------------------------------------------------------------------------------- 32
4-8 STR - F6654 -------------------------------------------------------------------------------------------------------------------- 32
4-8-1 General description ------------------------------------------------------------------------------------------------------- 32
4-8-2 Features -------------------------------------------------------------------------------------------------------------------- 32
4-8-3 Block diagram ------------------------------------------------------------------------------------------------------------- 33
4-8-4 Pins description ----------------------------------------------------------------------------------------------------------- 33
4-8-5 Control part electrical characteristics ---------------------------------------------------------------------------------- 34
4-8-6 MOSFET electrical chatacteristics ------------------------------------------------------------------------------------- 34
5- Circuit description --------------------------------------------------------------------------------------------------------------------- 35
5-1 Block diagram ------------------------------------------------------------------------------------------------------------------ 35
5-2 IF section ------------------------------------------------------------------------------------------------------------------------ 36
5-2-1 Picture IF Amplifier ------------------------------------------------------------------------------------------------------ 36
5-2-2 Tuner and VIF-AGC ------------------------------------------------------------------------------------------------------ 36
5-2-3 VIF-AGC detector -------------------------------------------------------------------------------------------------------- 36
5-2-4 Frequency phase-Locked Loop(FPLL) detector ---------------------------------------------------------------------- 36
5-2-5 VCO and divider ---------------------------------------------------------------------------------------------------------- 36
5-2-6 Digital acquisition help and AFC --------------------------------------------------------------------------------------- 37
5-2-7 Video demodulator and amplifier --------------------------------------------------------------------------------------- 37
5-2-8 Sound carrier trap --------------------------------------------------------------------------------------------------------- 37
5-2-9 SIF amplifier --------------------------------------------------------------------------------------------------------------- 37
5-2-10 AGC detector ------------------------------------------------------------------------------------------------------------ 37
5-2-11 Single reference QSS mixer -------------------------------------------------------------------------------------------- 38
5-2-12 AM demodulator -------------------------------------------------------------------------------------------------------- 38
5-2-13 FM demodulator and acquisition help -------------------------------------------------------------------------------- 38
5-2-14 Audio amplifier and mute time constant ----------------------------------------------------------------------------- 38
5-2-15 I2C-bus transceiver and MAD (module address) ------------------------------------------------------------------- 39
5-2-16 Internal voltage stabilizer ---------------------------------------------------------------------------------------------- 39
5-3 Video - VCT description ------------------------------------------------------------------------------------------------------ 39
5-3-1 Introduction ---------------------------------------------------------------------------------------------------------------- 39
5-3-2 Video Front-end ----------------------------------------------------------------------------------------------------------- 39
5-3-3 Input Selector -------------------------------------------------------------------------------------------------------------- 39
5-3-4 Clamping ------------------------------------------------------------------------------------------------------------------- 39
5-3-5 Automatic Gain control -------------------------------------------------------------------------------------------------- 39
5-3-6 Digitally Controlled Clock Oscillator ---------------------------------------------------------------------------------- 39
5-3-7 Analogue Video Output -------------------------------------------------------------------------------------------------- 39
5-3-8 Adaptive Comb Filter (VCT3834A only) ----------------------------------------------------------------------------- 40
5-3-9 Color Decoder ------------------------------------------------------------------------------------------------------------- 40
5-3-10 Horizontal Scaler (VCT3834A only) --------------------------------------------------------------------------------- 40
5-3-11 Video Sync Processing -------------------------------------------------------------------------------------------------- 40
5-3-12 Display Processing ------------------------------------------------------------------------------------------------------ 41
5-3-13 Chroma Transient Improvement --------------------------------------------------------------------------------------- 41
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Service Manual CP-099F
5-3-14 Video Back-end ---------------------------------------------------------------------------------------------------------- 41
5-3-15 CRT Measurement and Control --------------------------------------------------------------------------------------- 41
5-3-16 Average Beam Current Limiter ---------------------------------------------------------------------------------------- 41
5-3-17 Analogue RGB Insertion ----------------------------------------------------------------------------------------------- 41
5-3-18 Fast-Blank Monitor ----------------------------------------------------------------------------------------------------- 41
5-3-19 Vertical and East/West Deflection ------------------------------------------------------------------------------------- 42
5-3-20 EHT Compensation ----------------------------------------------------------------------------------------------------- 42
5-3-21 Reset Function ----------------------------------------------------------------------------------------------------------- 42
5-3-22 Standby and Power-On ------------------------------------------------------------------------------------------------- 42
5-4 Microcontroller ----------------------------------------------------------------------------------------------------------------- 42
5-4-1 Introduction ---------------------------------------------------------------------------------------------------------------- 42
5-4-2 CPU ------------------------------------------------------------------------------------------------------------------------- 42
5-4-3 -Controller I/O pin configuration and function ---------------------------------------------------------------------- 42
5-4-4 Tuning ---------------------------------------------------------------------------------------------------------------------- 43
5-4-5 Over Current Protection -------------------------------------------------------------------------------------------------- 43
5-5 Teletext Display ---------------------------------------------------------------------------------------------------------------- 43
5-6 Sound processing --------------------------------------------------------------------------------------------------------------- 44
5-6-1 Analogue sound IF - input section -------------------------------------------------------------------------------------- 44
5-6-2 Quadrature Mixers -------------------------------------------------------------------------------------------------------- 44
5-6-3 Phase and AM discrimination ------------------------------------------------------------------------------------------- 44
5-6-4 NICAM decoder ---------------------------------------------------------------------------------------------------------- 44
5-6-5 DSP section ---------------------------------------------------------------------------------------------------------------- 44
5-6-6 Sound Mode switching --------------------------------------------------------------------------------------------------- 44
5-7 Sound amplification ------------------------------------------------------------------------------------------------------------ 45
5-7-1 Power amplifier ----------------------------------------------------------------------------------------------------------- 45
5-7-2 Mode selection ------------------------------------------------------------------------------------------------------------ 45
5-8 Vertical deflection -------------------------------------------------------------------------------------------------------------- 45
5-8-1 Flyback voltage ----------------------------------------------------------------------------------------------------------- 45
5-8-2 Protection ------------------------------------------------------------------------------------------------------------------ 45
5-8-3 Guard circuit --------------------------------------------------------------------------------------------------------------- 46
5-8-4 Damping resistor ---------------------------------------------------------------------------------------------------------- 46
5-8-5 EAST-WEST Amplifier (TDA8358J) ---------------------------------------------------------------------------------- 46
5-9 Power supply (STR F6654) --------------------------------------------------------------------------------------------------- 46
5-9-1 STR-F6654 general desctrption ----------------------------------------------------------------------------------------- 46
5-9-2 Power supply primary part operations --------------------------------------------------------------------------------- 46
5-10 TV start-up, TV normal run and stand by mode operations ------------------------------------------------------------ 49
5-10-1 TV start-up operations -------------------------------------------------------------------------------------------------- 49
5-10-2 TV normal run and stand-by mode operations ---------------------------------------------------------------------- 50
5-11 DVD Loder -------------------------------------------------------------------------------------------------------------------- 53
5-11-1 Mechanism --------------------------------------------------------------------------------------------------------------- 53
5-11-2 Electirical Troubleshooting Guide ------------------------------------------------------------------------------------ 57
5-11-3 Circuit --------------------------------------------------------------------------------------------------------------------- 59
6. Service Parts list ----------------------------------------------------------------------------------------------------------------------- 64
7. Different Parts List By CRT ---------------------------------------------------------------------------------------------------------- 73
8. Exploded View ------------------------------------------------------------------------------------------------------------------------- 74
9. Printed Circuit Board ----------------------------------------------------------------------------------------------------------------- 76
10. Schematic Diagram ------------------------------------------------------------------------------------------------------------------ 79
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Service Manual CP-099F
1- Main Features
1-1 Specifications
TV standard PAL - SECAM B/G D/K, PAL, I/II, SECAM L/L'
Sound system NICAM B/G, I, D/K, L,
FM 2Carrier B/G, D/K
Power consumption 69W approx
Sound Output Power TV MODE : 3W min + 3W min
DVD MODE : 3W min + 3W min
Speaker 5W 8 ohm x2
Teletext system 10 page 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 51 Cm
Channel indication On Screen Display
Porgram Selection 100 programs (00~99)
EURO SCART (AV1) : Auto / Video In and Out, R/G/B In, Slow and
Fast switching.
Aux. terminal AUDIO OUT : DVD COAXIAL OUT and RCA Audio OUT at back of cabinet.
AV2 : RCA Video In and Audio In on side of cabinet.
EARPHONE : Jack on side of cabinet.
Remote Control Unit R-52B02
Laser Semiconductor laser, wavelength 650nm
Signal system PAL 625/50, NTSC 525/60
Frequency response (audio) 20 - 20,000Hz
CD/DVD Signal-to-noise ratio(audio) More than 60dB (1kHz)
Signal-to-noise ratio(video) More than 60dB (ABEX 50% white pattern)
Dynamic range (audio) 60dB
Harmonic distortion(audio) 0.3% (1kHz)
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Service Manual CP-099F Service Manual CP-099F
EURO SCART
Pin Signal Description Matching value
1 Audio out (linked with 3) 0.5Vrms, lmp < 1k (RF 60% MOD)
2 Audio In (linked with 6) 0.5Vrms, lmp < 10k
3 Audio out (linked with 1) 0.5Vrms, lmp < 1k (RF 60% MOD)
4 Audio Earth
5 Blue Earth
6 Audio In (linked with 2) 0.5Vrms, lmp < 10k
7 Blue In 0.7Vp-p 10%, lmp 75
8 Slow (Function) Switching TV : 0~2V, AV 16/9 : 4.5~7 V, AV 4/3 : 9.5~12 V, lmp > 10k
9 Green Earth
10 NC
11 Green In 0.7Vp-p 10%, lmp 75
12 NC
13 Red Earth 0.7Vp-p 10%, lmp 75
14 NC
15 Red In 0.7Vp-p 10%, lmp 75
16 Rapid Blanking, Switching Logic 0 : 0~0.4V, Logic 1 : 1~3V, lmp 75
17 Video Earth
18 Rapid Blanking Earth
19 Video Out 1.0Vp-p 10%, lmp 75
20 Video In 1.0Vp-p 10%, lmp 75
21 Common Earth
AV2 (RCA AUDIO-VIDEO INPUT)
1 VIDEO IN 1Vpp 3dB, Impedance 75ohm
2 L IN 0.5Vrms, Impedance > 10kohm
3 R IN 0.5Vrms, Impedance > 10kohm
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Service Manual CP-099F
1-2 Channel table
FREQUENCY TABLE
CH EUROPE CCIR FRANCE GB(IRELAND) EAST OIRT
C01 46.25 - 47.75 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 479.25 479.25 479.25 479.25
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 511.25 511.25 511.25 511.25
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
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Service Manual CP-099F
CH EUROPE CCIR FRANCE GB(IRELAND) EAST OIRT
C58 767.25 767.25 767.25 767.25
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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Service Manual CP-099F
1-3 ATSS sorting method
The TV set sweeps all the TV bands from beginning of VHF to end of UHF. The TV controlling softw for each are
program checks if a VPS CNI code is transmitted ( this system e xists for German, Swiss and Austrian transmissions).
If no VPS CNI code is found then the system check if a CNI code is transmitted as part of the teletext transmission
,
( Packet 8/30 format 1 ). If such a code ( VPS or teletext ) is found and if this code is in the ATSS list, the program is
automatically named.
If the transmission does not have VPS CNI, and no teletext service is availab le, then there is no possibility of the
program being automatically named.
The programs found are then sorted in 4 groups :
Group I : It contains all the pro grams from the selected country and named by the TV controlling softw Within this
are.
group the sorting order is fixed by the ATSS list.
Group II : It contains all the pro grams with a strong signal strength which are not listed in group I.
Group III : It contains all the pro grams with a weak signal strength which are not listed in group I.
Group IV : If two or more programs with the same code are found, only the strongest ( or if they have the same level
the one with the lowest frequency) is listed in group I, II or III. The others are listed in group IV.
Program Program
Group Skip Group Skip
number number
1 1
2 Group I ... Group II
... m
n m+1
n+1 ... Group III
... Group II p
m p+1
m+1 ... Group IV
... Group III q
p q+1
p+1 .... not used
... Group IV 99
q 0
q+1
.... not used
99 Special case : Country selection = Others
0
Special case : France
Note : If two programs with the same name but a different code ar e found these two programs are listed in
group I, II or III ( e.g. Regional pro gram SW3 in Germany ).
The sorting order within group II, III, and IV is based on the channel frequency. The Program with the lowest
frequency is allocated the first rank in its group, and so forth until the last program of the group which has the
highest frequency.
Special case : France
If France is selected, the TV controlling software swee ps all TV bands with France system selected firstly
( positi ve video modulation) and the second time with Europe system selected ( nega tive video modulation).
Special case : Switzerland
If Switzerland is selected the TV controlling software swee ps all TV bands with Europe system selected firstly
(ne ga tive video modulation) and the second time with France system selected ( positive video modulation).
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Service Manual CP-099F
Special case : GB
Note for setellite receiver users : Before starting ATSS turn On your satellite receiver and tune " SKY NEWS ".
If GB is selected the TV controlling software seeks for programs only in UHF ( C21 to C70 ).
The sorting order is :
1 - BBC1
2 - BBC2
3 - ITV
4 - CH4
5 - CH5
6 - NEWS
If two or more " identical" programs ( same name but different code e.g. BBC1 and BBC1 Scotland ) are found
the f ollowing programs in the list will be shifted up. (1 - BBC1, 2 - BBC1, 3 - BBC2, 4 -ITV, 5 - CH4, 6 - CH5,
7 - NEWS, ..)
If one of the program above is not found, the associated program number remains empty
( freq.=467.25 Mhz - Skip selected - no name - system=GB).
example A : 1 - BBC1, 2 - BBC2, 3 - ITV , 4 - ----, 5 - CH5, 6 - NEW S , ...
example B ( if 2 BBC1 found ) : 1 - BBC1, 2 - BBC1, 3 - BBC2, 4 - IT V, 5 - -----, 6 - CH5, 7 -NEWS, ...
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
27.5 KV (21") at max beam current. The high voltage must not, under any circumstances.
exceed 31 KV (21"). 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
1. 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.
1) Servicing should not be attempted by anyone who is not thoroughly familiar with the precautions necessary
when working on high voltage equipment.
2) 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.
2. If any Fuse in this TV receiver is blown, replace it with the FUSE specified in the Replacement Parts List.
3. When replacing a high wattage resistor ( metal oxide film resistor) in the circuit board, keep the resistor
10 mm away from circuit board.
4. Keep wires away from high voltage or high temperature components.
5. This receiver must operate under AC 230 volts, 5O Hz. NEVER connect to DC supply or any other power 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.
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Service Manual CP-099F
LASER SAFETY
This unit employs a laser Only gualified service personal should remove the cover or attempt to service this device
due to possible eye injury.
CAUTION : Use of any controls, adjustments, or procedures other than those specified herein may result in hazardous
radiation exposure.
3 - Alignment instructions
3-1 Microcontroller con figuration : 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 menu.
3 - Quickly press the key sequence : RED - GREEN - menu
To software version is displayed beside the word Service, e.g. " FACTORY V0.00".
To exit SERVICE men u press TV/AV/DVE key or POWER OFF
3-2 Service mode navigation
NAME AFTER SVC MODE
POWER STAND BY <=>
POWER ON
PR UP PR UP
PR DOWN PR DOWN
VOL UP REGION SELECT DVD ON/OFF SVC OFF 4:3, 16:9
VOL DOWN TUNER SELECT
CURSOR SUB-BRT UP
CURSOR SUB-BRT DOWN
TV MENU SHIPPING V-SLOPE V-CENTER V-SIZE
MENU/PBC BUYER SELECT
OPEN/COLSE P.DRIVE -
ZOOM G BIAS -
SETUP G. DRIVE - H-WIDTH H-CENTER PARABOLA
PAUSE TRAPEZIUM +
SKIP-F:NEXT TRAPEZIUM -
SKIP-B:PREVIOUS H PARA +
FAST-F / SLOW B.DRIVE +
FAST-R / SLOW R DRIVE +
REPEAT CONER -
A-B REPEAT CONER +
PLAY G.DRIVE +
STOP H.PARA -
RANDOM R.BIAS -
ANGLE R.BIAS +
PROGRAM G.BIAS +
AUDIO H-WIDTH -
SUBTITLE PARABOLA -
OK / ENTER TXT OPTION
RECALL / DISPLAY SCREEN
TITLE B.DRIVE -
SLEEP 4:3, 16:9
TV/AV/DVD SVC OFF
NORMAL DVD ON/OFF
MUTE(SYMBOL) CRT OPTION
CLEAR AGC -
ADD AGC +
SERCH B.BIAS -
SOUND MODE B.BIAS +
0 H.CENTER -
1 V.SLOPE +
2 V.CENTER +
3 V.SIZE +
4 V.SLOPE -
5 V.CENTER -
6 V.SIZE -
7 H.WIDTH +
8 H.CENTER +
9 PARABOLA + NORMAL MODE SERVICE MODE
ASPECT
-10-
Service Manual CP-099F
3-3 Microcontroller con figuration : Option bits
These option bits are availa ble from Service mode. Please refer to previous page's diagram of the AFTER SERVICE state.
The table below shows the options availa ble ;
B7 B6 B5 B4 B3 B2 B1 B0
TOP text FASTEXT Tuner options
1 00 PHILIPS CRT
off /FLOF off Buyer Aspect
10 THOMSON CRT 00 = Philips
TOP text FASTEXT option option
0
(FLOF) on 11 SAMSUNG CRT
11 = Daewoo, Samsung
on
REGION SELECT : Go to SERVICE MODE and push the REGION SELECT key.
DVD UPGRADE : Go to SERVICE MODE and push DVD ON , SVC OFF. Then insert the UPGRADE CD.
Upgrde is doing automatically.
For a while, push the power switch off after screen is twinkled.
Then switch on, upgrde is done perfectly.
3-4 TV set Alignment
CAUTION ) All of the below keys are SERVICE MODE'S keys.
Please refer to AFTER SERVICE MODE diagram p.p10.
3-4-1- The adjustment of screen
- Go to SERVICE MODE and adjust SUB BRIGHT at below datas.
(Setting data -- Philips CRT : 30, Thomson CRT : ?, Samsung CRT : ?)
In case of mass production in the factory, keeping the setting data value to EEPROM MASTER IC for setting of sub-bright.
- Press the SCREEN key on the service remote control so that make the horizontal line.
- Adjust the screen volume of the FBT so that the horizontal line may be minimum light.
- Press the SCREEN key on the SVC remocon to release SCREEN mode.
3-4-2- The adjustment of focus
- Apply PAL RETMA pattern.
- Adjust with the focus volume on the FBT until you get the most clear resolution line on the screen.
3-4-3- The adjustment of white balance
- Go to SERVICE MODE.
- Adjust with G DVR +/-,B DVR +/- keys so that only G,B bars in the low beam on the instrument may be located in the
center.
- The reference coordinates are X=288, Y=301
3-5 The adjustment of geometry
3-5-1- The adjustment of vertical center
- Apply PAL RETMA pattern.
- Go to SERVICE MODE.
- Press V-CEN+ or V-CEN- key and "VERT CENT" OSD will be displayed.
- Adjust with V-CEN+/V-CEN- keys so that the center mark of the CRT may be located on the horizontal line in the middle of
the pattern. In case of no center mark, adjust with V-CEN+/V-CEN- keys to obtain a vertical symmetric pattern.
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Service Manual CP-099F
3-5-2- The adjustment of vertical size
- Apply PAL RETMA pattern.
- Go to SERVICE MODE.
- Press V-SIZE+ or V-SIZE- key and "VERT SIZE" OSD will be displayed.
- Adjust with V-SIZE+/V-SIZE- keys so that the upper and the lower '+' marks of the RETMA pattern may be located at the
boundaries of the screen.
3-5-3- The adjustment of vertical slope
- Apply PAL RETMA pattern.
- Go to SERVICE MODE.
- Press V-SLOPE+ or V-SLOPE- key and "V. LINEAR" OSD will be displayed.
- Referring to the upper side and lower side, adjust with V-SLOPE+/V-SLOPE- keys so that RETMA pattern may
be symmetrical.
- In case of mass production in the factory, keeping the default value is recommended for the adjustment of V-SLOPE.
Ddfault value : -00005
3-5-4- The adjustment of S-correction
- Apply PAL CROSS HATCH pattern.
- Go to SERVICE MODE.
- Press S-CUR+ or S-CUR- key and "S CORRECT" OSD will be displayed.
- Adjust with S-CUR + or S-CUR- keys so that the upper, the lower and the middle size of the CROSS HATCH pattern
may be same size.
- In case of mass production in the factory, keeping the default value is recommended for the adjustment of S-correction.
Ddfault value : -00020
3-5-5- The adjustment of horizontal center
- Apply PAL RETMA pattern.
- Go to SERVICE MODE.
- Press H-CENTER+ or H-CENTER- key and "HOR CEN" OSD will be displayed.
- Referring to the both side scales, adjust with H-CONTER+/H-CNETER- keys so that RETMA pattern may be symmetrical.
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Service Manual CP-099F
3-5-6- The adjustment of horizontal width
Adjust Horizontal width only CRT of non pin pree and don't adjust Horizontal width CRT of pin free.
- Apply PAL RETMA pattern.
- Go to SERVICE MODE.
- Press H-WIDTH+/H-WIDTH- key and "H WIDTH" OSD will be displayed.
- Referring to the both side scales, adjust with H-WIDTH+/H-WIDTH- keys so that RETMA pattern may be OVER Scan 10%.
3-5-7- The adjustment of pincusion
Adjust Pincushion only CRT of non pin free and don't adjust Pincusion CRT of pin free.
3-5-7-1 The adjustment of parabola
- Apply PAL CROSS HATCH pattern.
- Go to SERVICE MODE.
- Press PARA or PARA key and "PARABOLA" OSD will be displayed.
- Adjust Parabola Width with PARA or PARA key.
3-5-7-2 The adjustment of corner
- Apply PAL CROSS HATCH pattern.
- Go to SERVICE MODE.
- Press COR-T or COR-T key and "CORNER" OSD will be displayed.
- Adjust Parabola Corner with COR-T or COR-T key.
- In case of mass production in the factory, keeping the default value is recommended for the adjustment of CORNER.
Default Value : +00000
3-5-7-3 The adjustment of H.parabola
- Apply PAL CROSS HATCH pattern.
- Go to SERVICE MODE.
- Press H.PARALL or H.PARALL key and "HOR PARAL" OSD will be displayed.
- Adjust Parabola Corner with H.PARALL or H.PARALL key.
- In case of mass production in the factory, keeping the default value is recommended for the adjustment of CORNER.
Default Value : +00022
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Service Manual CP-099F
3-5-7-4 The adjustment of H.bow
- Apply PAL CROSS HATCH pattern.
- Go to SERVICE MODE.
- Press H.BOW or H.BOW key and "H.BOW" OSD will be displayed.
- Adjust Parabola Width with H.BOW or H.BOW key.
- In case of mass production in the factory, keeping the default value is recommended for the adjustment of H.bow
Ddfault value : -00000
3-5-7-5 The adjustment of EW TRAPEZIUM
- Apply PAL CROSS HATCH pattern.
- Go to SERVICE MODE.
- Press EW TRAPEZ or EW TRAPEZ key and "EW TRAPEZ" OSD will be displayed.
- Adjust Parabola Width with EW TRAPEZ or EW TRAPEZ key.
- In case of mass production in the factory, keeping the default value is recommended for the adjustment of EW TRAPEZ
Ddfault value : +00060
3-6 The adjustment of RF AGC
- Apply PAL signal of 60 2dB V of RF level.
- Connect the probe of the oscilloscope to the P101 #3pin (TUNER AGC INPUT)
- Go to SERVICE MODE.
- Adjust with the COR-B UP/DOWN keys on the service remote control so that the DC voltage may have the value reducde by
1.0 0.2Vdc from
- In case of mass production in the factory, keeping the default value is recommended for the adjustment of AGC
Default value : 14
3-7 Setting the conditions for finished products
- Go to SERVICE MODE.
- Press the upper SHIPPING key on the SVC MODE REMOCON to set the conditions for the finished products.
For the reference, the predesignated values are as follows.
PICTURE NORMAL-1 Pr. 01
SOUND NORMAL Wake up Off
NR Off Child Lock Off
BALANCE Center
VOLUME 21/63
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Service Manual CP-099F
4 - IC description
4-1 VCT383XA TV signal processor - Teletext decoder with embedded 8 bit - Controller.
4-1-1- Block diagram of the VCT
VSUPAF
GNDAF
VSUPD
SENSE
GNDM
GNDD
HOUT
SGND
PROT
HFLB
XREF
VERT
RSW
VRD
VRT
EW
VCT 38xx
2 2 2
3 3
VIN Display RGBOUT
Video Comb Color Panorama Video
CIN 4 Processor SVM
Front-end Filter Decoder Scaler Back-end 4
Pict.Improv RGBIN
VOUT
VSUPAB
GNDAB
I2C 2 AOUT
MSync Audio
Video
3 AIN
8 Color, Prio
VSync
BE I2C Mmaster 2
I 2C
TPU
DMA CPU
RDY 8-bit PWM
24 kB ROM
14-bit PWM
15:1 Mux
3 kB 1 kB 10-bit ADC Reset RESQ
OSD RAM CPU RAM 2 Timer Logic TEST
2 CapCom
16 kB 96 kB Watchdog Clock XTAL1
Text RAM CPU ROM Oscillator XTAL2
24 IO Ports
31
ADB, DB, CB CLK20
12
VSUPS
Pxy
VSUPP1
GNDP1
GNDS
4-1-2- TV-signal Processor
Four composite video inputs, two S-VHS inputs
Analogue YC r C b input
Composite video monitor
Multistandard colour decoder ( 1 crystal )
Multistandard sync decoder
Black-line detector
Adaptive 2H comb filter Y/C separator
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Service Manual CP-099F
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Service Manual CP-099F
High-level command language
FLOF (Fastext), and TOP support
10 pages memory on chip (10kB)
4-1-5- Display OSD Features
3kB OSD RAM on chip
WST level 1.5 compliant
WST level 2 parallel attributes
32 foreground/background colours
programmable colour look-up table
1024 mask programmable characters
17 national languages
(Latin, Cyrillic and Greek character sets)
Character matrix 10x10
4-color mode for user font
4-1-6- Audio Features
Three mono inputs
Two mono outputs
Programmable channel select
Volume control for one mono channel
4-1-7- General Features
Submicron CMOS technology
Low-power standby mode
Single 20.25 MHz crystal
64-pin PSDIP package
4-1-8- Data Capture
The Video Front End section takes in the analogue Composite Video and Blanking Signal (CVBS), and from this
extracts the required data, which is then decoded and stored in memory.
The extraction of the data is performed in the digital domain. The first stage is to select and convert the analogue
CVBS signal into a digital form. This is done using 8 bit ADC sampling at 20.25 Mhz.
The digital data services transmitted in the VBI are selected and acquired separately form the video part. This is done
by the use of an adaptive data slicer. The following data types can be extracted : 625 line World System Teletext
(WST), VPS, WSS. The data is acquired and decoded by the teletext decoder (TPU), then stored in an SRAM lnterface.
4-1-9- Data Capture Features
Video Signal Quality detector
Data Capture for 625 line WST
Data Capture for VPS data (PDC system A)
Data Capture for Wide Screen Signalling (WSS) bit decoding
Real-time capture and decoding for WST Teletext in Hardware, to enable optimised microprocessor throughout
10 page memory stored On-Chip
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Service Manual CP-099F