Daewoo DTE-29G3ZZR User manual

S/M No.:TCP795MEFO
Service Manual
ColorTelevision 68cm Stereo
CHASSIS : CP-795
Model : DTE-29G3ZZR
DTE-29G3KZR
Specirication
DAEWOO ELECTRONICS CO., LTD
http : //svc.dwe.co.kr March.2001
Items Model DTE-29G3ZZR/DTE-29G3KZR
TV Standard PAL-SECAM B/G D/K,PAL I/I,SECAM L/L
Sound System NICAM B/G,I,D/K,L,FM2Carrier B/G,D/K
Power Consumption 70W approx.
Sound Output Power 6W X 2(at60% mod,10%THD)
Speaker 12W 8 ohm X 2
Teletext System 10page memory FASTEXT(FLOF or top)
Aerial input 75ohm unbalanced
Channel coverage Off-air channels, S-cable channels and hyperband
Tuning System Frequency synthesiser tuning system
Visual screen size 68cm(DIAGONAL)
Channel indication On Screen Display
Program Selection 100programmes
Aux.terminal EURO-SCART1:Audio/Video In and Out,
R/G/B In, slow and fast switching.
EURO-SCART2:Audio/Video In and Out, S-VHS In.
Audio-Video jack on front of cabinet in common
connection with EURO-SCART2.
Headphone jack(3.5mm)on front of cabinet
Remote Control Unit R-40A13

TABLE OF CONTENTS
APPENDIX(Appendix is provide only by internet [http://svc.dwe.co.kr])
IC DESCRIPTION ............................................................................................................1
TDA936X TV SIGNAL PROCESSOR-TELETEXT DECODER WITH EMBEDDED U-CONTROLLER...................... 1
MSP3415D MULTISTANDARD SOUND PROCESSOR.............................................................................................. 9
TDA894XJ STEREO AUDIO AMPLIFIER.................................................................................................................... 13
TDA835XJ VERTICAL AMPLIFIER.............................................................................................................................. 14
TDA6107Q.................................................................................................................................................................... 17
24C16 16Kbit EEPROM ............................................................................................................................................... 18
STR-F6653 ................................................................................................................................................................... 19
CIRCUIT DISCRIPTION................................................................................................... 21
BLOCK DIAGRAM........................................................................................................................................................ 21
IF................................................................................................................................................................................... 25
SOURCE SWITCHING................................................................................................................................................. 27
U-CONTROLLER I/O PIN CONFIGURATION AND FUNCTION.................................................................................27
SOUND PROCESSING................................................................................................................................................ 28
SOUND AMPLIFICATION ............................................................................................................................................ 31
VERTICAL DEFLECTION ............................................................................................................................................ 31
POWER SUPPLY ......................................................................................................................................................... 33
TV START-UP, TV NORMAL RUN AND STAND-BY MODE OPERATIONS .............................................................. 37
MAIN FEATURES ....................................................................................................................... 2
SPECIFICATIONS ........................................................................................................................................................ 2
CHANNEL TABLE ........................................................................................................................................................ 4
SAFETY INSTRUCTION.................................................................................................. 9
CIRCUIT BLOCK DIAGRAM ........................................................................................... 10
ALIGNMENT INSTRUCTIONS ........................................................................................ 11
MICROCONTROLLER CONFIGURATION:SERVICE MODE .....................................................................................11
MICROCONTROLLER CONFIGURATION:OPTION...................................................................................................11
TV SET ALIGNMENT ................................................................................................................................................... 11
SCHEMATIC DIAGRAM ..................................................................................................14
EXPLODED VIEW...........................................................................................................15
PRINTED CIRCUIT BOARD ............................................................................................16
ELECTRICAL PARTS LIST .............................................................................................17
-1-

Service manual CP-795
- 2 -
TV standard PAL - SECAM B/G D/K, PAL I/I, SECAM L/L’
Sound system NICAM B/G, I, D/K, L,
FM 2Carrier B/G, D/K
Power consumption 70W approx.
Sound Output Power 6Wx 2 (at 60% mod, 10%THD)
Speaker 12W 8 ohm x2
Teletext system 10 pages memory FASTEXT (FLOF orTOP)
Aerial input 75 ohm unbalanced
Channel coverage Off-air channels, S-cable channels and hyperband
Tuning system Frequency synthesiser tuning system
Visual screen size 68cm (DIAGONAL)
Channel indication On Screen Display
Program Selection 100 programmes
Aux. terminal EURO-SCART 1 :Audio /Video In and Out, R/G/B In, Slow and
Fast switching.
EURO-SCART 2 :Audio /Video In and Out, S-VHS In.
Audio-Video Jack on front of cabinet in common connection with
EURO-SCART 2.
Headphone jack (3.5 mm) on front of cabinet
Remote Control Unit R-40A13
1-Main features
1-1 Specifications
21 Pin EURO-SCART 1:
Pin Signal Description Matching value
1 Audio Output Right 0.5 Vrms, Impedance < 1 , ( RF 54% Mod )
2 Audio Input Right 0.5Vrms, Impedance > 10
3 AudioOutputLeft 0.5Vrms, Impedance < 1 , ( RF 54% Mod )
4 Audio Earth
5 Blue Earth
6 Audio Input Left 0.5Vrms, Impedance > 10
7 Blue Input 0.7Vpp ±0.1V, Impedance 75
8 Slow Switching TV : 0 to 2V,AV 16/9 : 4.5 to 7V,AV Auto : 9.5 to 12V ,
Impedance > 10
9Green Earth
10 N.C.
11 Green Input 0.7Vpp ± 0.1V, Impedance 75
12 N.C.
13 Red Earth
14 Blanking Earth
15 Red Input 0.7Vpp ± 0.1V, Impedance 75
16 Fast Switching 0 to 0.4V : Logic “0”, 1 to 3V : Logic “1”, Impedance 75
17 Video Out Earth
18 Video In Earth
19 Video Output 1Vpp ± 3dB, Impedance 75

Service manual CP-795
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20 Video Input 1Vpp ± 3dB, Impedance 75
21 Common Earth
21 Pin EURO-SCART 2:
Pin Signal Description Matching value
1 Audio Output Right 0.5Vrms, Impedance < 1 , ( RF 54% Mod )
2 Audio Input Right 0.5Vrms, Impedance > 10
3 Audio Output Left 0.5 Vrms, Impedance < 1 , ( RF 54% Mod )
4AudioEarth
5Earth
6 Audio Input Left 0.5Vrms, Impedance > 10
7N.C.
8N.C.
9N.C.
10 N.C.
11 N.C.
12 N.C.
13 Earth
14 Earth
15 Chroma Input ± 3dB for a luminance signal of 1Vpp
16 N.C.
17 Video Out Earth
18 Video In Earth
19 VideoOutput 1Vpp ± 3dB, Impedance 75
20 Video Input,Y In. 1 Vpp ± 3dB, Impedance 75
21 Common Earth

Service manual CP-795
- 4 -
1-2 Channel table
FREQUENCY TABLE
CH 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 479.25 479.25 479.25 479.25
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 91.25 591.25 591.25 591.25
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

Service manual CP-795
- 5 -
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
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

Service manual CP-795
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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

Service manual CP-795
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1-3ATSS sorting method
The TV set sweeps all theTV bands from beginning ofVHF to end of UHF. TheTV controlling software
for each program checks if aVPS CNI code is transmitted. If noVPS CNI code is found, the system check
if a CNI code is transmitted in the teletext lines ( Packet 8/30 format 1 ). If such a code (VPS or teletext )
is found and if this code is in theATSS list, the program is automatically named.
The programs found are then sorted in 4 groups :
Group I : It contains all the programs from the selected country and named by the TV controlling
software.Within this group the sorting order is fixed by theATSS list.
Group II : It contains all the programs with a strong signal strength which are not listed in group I.
Group III : It contains all the programs 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.
Note : If two programs with the same name but a different code are found these two programs are listed in
group I, II or III ( e.g. Regional program 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.
Program Group Skip
number
1
... Group II
m
m+1
... Group III
p
p+1
... Group IV
q
q+1
... not used
99
0
Special case : Country selection = Others
➼
Program Group Skip
number
1
2 Group I
...
n
n+1
... GroupII
m
m+1
... Group III
p
p+1
... Group IV
q
q+1
.... not used
99
0
➼

Service manual CP-795
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Special case : France
If France is selected the TV controlling software sweeps the whole TV bands firstly with France system
selected ( positive video modulation) and secondly with Europe system selected ( negative video
modulation).
Special case : Switzerland
If Switzerland is selected the TV controlling software sweeps the whole TV bands firstly with Europe
system selected (negative video modulation) and secondly with France system selected ( positive video
modulation).
Special case : GB
Note for satellite receiver users : Before startingATSS 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 following 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).
exampleA : 1 - BBC1, 2 - BBC2, 3 - ITV, 4 - ——, 5 - CH5, 6 - NEWS, ...
example B ( if 2 BBC1 found ) : 1 - BBC1, 2 - BBC1, 3 - BBC2, 4 - ITV, 5 - ——, 6 - CH5, 7 - NEWS, ...

Service manual CP-795
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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 28 KV 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
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 (oxide metal film resistor) in 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 underAC 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.