Daewoo CM-012M Service Manual
Service Manual
Color Television
CHASSIS : CM-012M
Model : DTH-29M2FS
Feb. 2001
D AEW OO ELECTR ONICS CO., LTD
http : //svc.dwe .co.kr
Specification
220V, 50/60Hz
PAL-M/N
TV VHF(L) : CH2 - CH6
UHF(H): CH7-CH13
UHF : CH14-CH69
CATV VHF(L) : 5A, A,B, A-5-A-1
CH2 - CH6
VHF(H) : C-W+11
CH7 - CH13
UHF : W+12-W+84
7W+7W
8 ohm
75 ohm Unbalanced
Picture IF Carrier Frequency : 45.75MHz
Sound IF Carrier Frequency : 41.25MHz
Color Sub-Carrier Frequency : 3.579545MHz
R-43A05
125W
Frequency Synthesizer(FS)Tuning System
1) Icon Type
2) 4-Language OSD
3) With CAPTION
4) CH Label
S/M No. : TCM012MEF0
DTH-29M2FS
Model
Items
TV Standard
Power Input
Power Consumption
Tuning System
Tuning Ranges
Sound Output
Speaker
Antenna Input Impedance
Intermediate Frequencies
Remote Control
Special Function
12W 2EA
Auxiliary Input Terminal
Auxiliary Output Terminal
Font: Video , Audio(R,L)
Rear: Video, Audio(R,L)
Rear: Video, Audio(R,L)
5) Digital Sensor
6) Surround
7) AVC
8) Wide Picture(Option)
DTH-29M2FS
1
TABLE OF CONTENTS
APPENDIX (Appendix is provide only by internet [http://svc.dwe.co.kr])
SPECIFICATIONS...............................................................................................................................2
CIRCUIT BLOCK DIAGRAM.............................................................................................................. 3
ALIGNMENT INSTRUCTIONS............................................................................................................4
YOUR REMOTE CONTROL............................................................................................................................4
SERVICE MODE ADJUSTMENT....................................................................................................................5
ASSEMBLY ADJUSTMENT.............................................................................................................................6
SCHEMATIC DIAGRAM......................................................................................................................10
ELECTRICAL PARTS LIST.................................................................................................................11
EXPLODED VIEW...............................................................................................................................20
PRINTED CIRCUIT BOARD................................................................................................................21
IC DESCRIPTION................................................................................................................................1
CHIP COMPONENTS POSITION........................................................................................................3
TROUBLE SHOOTING GUIDE...........................................................................................................9
NO POWER.....................................................................................................................................................9
NO PICTURE...................................................................................................................................................10
NO SOUND......................................................................................................................................................11
CH DON’T STOP.............................................................................................................................................12
NO COLOR......................................................................................................................................................13
NO VERTICAL DEFLECTION.........................................................................................................................13
NO ON-SCREEN DISPLY...............................................................................................................................14
NO REMOCON RECEIPT...............................................................................................................................14
2
SPECIFICATIONS
MODEL
ITEMS
DTH-29M2FS REMARKS
TV STANDARD PAL-M/N
POWER INPUT 220V , 50/60Hz
POWER CONSUMPTION 125W
TUNING SYSTEM Frequency Synthesizer ( FS ) Tuning System
TUNING RANGES
TV VHF(L) : CH2 ~ CH6
UHF(H) : CH7 ~ CH13
UHF : CH14 ~CH69
CATV VHF(L) : 5A, A,B, A-5 -A-1
CH2 ~ CH6
VHF(H) : C-W +11
CH7 - CH13
UHF : W +12- W+84
SOUND OUTPUT 7 W+ 7 W
SPEAKER 8 ohm 12W 2EA
ANTENNA INPUT
IMPEDANCE
75 ohm Unbalanced
AUXILIARY INPUT TER-
MINAL
SIDE : VIDEO, AUDIO(R,L)
REAR : VIDEO , AUDIO(R,L)
AUXILIARY OUTPUT
TERMINAL
REAR : VIDEO, AUDIO(R,L)
INTERMEDIATE
FREQUENCIES
Picture IF Carrier Frequency : 45.75 MHz
Sound IF Carrier Frequency : 41.25 MHz
Color Sub-Carrier Frequency : 3.579545 MHz
REMOTE CONTROL R-43A05
SPECIAL FUNCTIONS
1) ICON MENU TYPE 5) DIGITAL SENSOR
2) 4-LANGUAGE OSD 6)SURROUND
3) WITH CAPTION 7) AVC(Auto Volume Control)
4) CH LABLE 8)WIDE PICTURE(OPTION)
3
CIRCUIT BLOCK DIAGRAM
4
ALIGNMENT INSTRUCTION
1. POWER
use this button to turn your TV on or off.
2. MUTE
Use to turn the TV's sound on and off.
3. CH
Use these buttons to change your TV's volume, to
activate selections in the menu system.
4. VOL
Use thesebuttons to change your TV's volume, to
activate selections in the meny system, or to change
audio and video settings.
5. MENU
Use this button to turn the TV's menu system on and off.
6. DISPLAY
Use this button to display the channel numbeer and
status.
7. INPUT
Use this button to select the TV's signal source.
8. VIDEO
Use this button to display video adjustment.
9. 0-9
Use these buttons to change channels.
10. SLEEP
Use this button to program the TV to turn off after a
certain time.
11. PREVIOUS
Use this button to return to the previous channel you
were watching.
1
3
4
11
8
7
2
4
5
3
9
10
6
POWERMUTE
MENU
CH
SLEEP PREVIOUS
VIDEOINPUTDISPLAY
1 2 3
4 5 6
7 8
0
9
VOL VOL
Your Remote Control(R-43A05)
5
1. SERVICE MODE ADJUSTMENTS
Follow the steps below whenever service adjustment is required. See Table- A and Table- B to determine if
service adjustments are required.
1) How to enter the service mode using the user remote control.
•
Turn the set on.
•
Direct the remote control to the reception window of TV.
•
Push buttons of remote control in sequence as follows.
1
→
MUTE
→
DISPLAY
→
MUTE
•
Then, the screen will appear as follows.
•
Using the channel up or channel down button, select the item you wish to adjust.
(The color of selected item turns into the red.)
•
Press the volume up or down button to enter in the service mode you wish to adjust.
2) How to memorize the adjusted values in the service mode.
•
Must press
DISPLAY
button the state which the screen is displaying each of service
menus
after all adjustments are completed each of all service menu.
Table-A : Adjust the values of service mode when a part is replaced.
PART
REPLACED
ADJUSTMENT
NOTES
NECESSARY UNNECESSARY
I701
(U-COM)
O
Data is stored in I703.
I101
(MAIN)
O
I702
(EEPROM)
Initial setting values are written from I701.
ADJUSTING ITEMS
S5 : RFAGCD
O S6 : H.PHASE/V.POSI/V.SIZE
S8 : RD/GD/BD/RB/GB/BB
S9 Subbrightness
CRT O Adjust items related to picture tube only.(White Balance adjustment)
ALIGNMENT INSTRUCTIONS
S2 SCRN
S5 IFC
S6 GEO
S8 W/B
S9 DP
S12 FACT
6
Table-B
*
indicates the items with different settings each of sets
2. ASSEMBLY ADJUSTMENTS
1) SCREEN ADJUSTMENT (S2)
•
Enter the service mode and select service adjustment S2.
•
You can see the one horizontal line on the screen.
•
Adjust the Screen Control Volume (located on FBT) so that the horizontal line onscreen may be disappeared.
•
Press the volume up or down button to exit in the screen adjustment mode.
MODE ADJUSTMENT ITEMS
DATA
REMARKS
INITIAL RANGE
S2 Screen Adjustment - -
S5
IF CONTROL
RF AGC DELAY * 20 0 ~63 Align RF AGC threshold
AGC POINT 3.75 3.25~4.0 Select AGC reference voltage
A/D VALUE - -
FM/AM PRESCALE 18 0~255 Must be set to 18
SCART PRESCALE 18 0~255 Must be set to 18
MONITOR VOLUME 119 0~255 Must be set to 119
S6(4:3)
H-CENTER * 11 0~31 Align sync to flyback pulse,using internal cross pattern(s11)
V-CENTER * 22 0~63 Align vertical DC bias,using internal cross pattern(s11)
V-LIN * 13 0~31 Must be set to 13
H-SIZE * 27 0~63 Align sync to flyback pulse,using internal cross pattern(s11)
V-SIZE * 96 0~127 Align vertical amplitude,using internal cross pattern(s11)
V-S 12 0~31 Must be set to 12
V-SIZE-C 7 0~7 Must be set to 7
P-CUSHION * 30 0~63 Align pincution,using internal cross pattern(s11)
TILT * 37 0~63 Align tilt,using internal cross pattern(s11)
TOP-C 2 0~15 Must be set to 2
BOT-C 3 0~15 Must be set to 3
H-CENTER(60-50Hz) * 5 0~31 Must be set to 5
V-CENTER(60-50Hz) * 8 0~63 Must be set to 8
V-LIN(60-50Hz) * 0 0~31 Must be set to 0
S6-2(16:9)
WVPOS * 22 0~63 Align vertical DC bias,using internal cross pattern(s11)
WVPOS(60-50Hz) * 8 0~63 Must be set to 8
W-V-SIZE * 48 0~127 Align vertical amplitude,using internal cross pattern(s11)
W-V-LIN * 13 0~31 Must be set to 13
W-V-S 12 0~31 Must be set to 12
W-P-CUSHIO * 17 0~63 Align pincution,using internal cross pattern(s11)
W-TILT * 37 0~63 Align tilt,using internal cross pattern(s11)
W-TOP-C 0 0~15 Must be set to 0
W-TOP-C 2 0~15 Must be set to 2
S8
R-DRIVE * 63 0~127 Align red out AC level
G-DRIVE * 15 0~15 Must be set to 15
B-DRIVE * 63 0~127 Align blue out AC level
R-BIAS * 127 0~255 Align red out DC level
G-BIAS * 160 0~255 Must be set to 160
B-BIAS * 127 0~255 Align blue out DC level
S9
SUB-BRIGHT * 75 0~127 Align common RGB DC level
DP-CONTRAST 27 0~27
DP-SHARPNESS 5 0~30
DP-COLOR 27 0~27
DP-TINT 38 0~77
VIDEO LEVEL 7 0~7
FM LEVEL 30 0~31
S11
internal black - - Display internal black pattern
internal 100% white - - Display internal 100% white
internal 60% white - - Display internal 60% white
internal cross pattern - - Display internal cross pattern
S12 Forwarding Mode - Factory initialization
IN THE SCREEN ADJUSTMENT MODE, DONT PRESS OTHER BUTTONS EXCEPT VOLUME UP OR DOWN BUTTON.
CAUTION
ALIGNMENT INSTRUCTIONS
7
2) FOCUS ADJUSTMENT
•
Turn in a local station and adjust the Focus Control knob (located on FBT) for best picture
details at high light condition.
3) RF AGC DELAY ADJUSTMENT (S5)
•
Receive a good local channel.
•
Enter the service mode and select service adjustment S5.
•
You can see the OSD as shown in below.
•
Select RFAGCD item, press the volume up or down button until noise or beat in picture disappears.
•
Press the DISPLAY button to memorize the data.
4) GEOMETRIC ADJUSTMENTS (S6)
•
Enter the service mode and select service adjustment S11.
•
Whenever you select the “S11” using the volume up or down button, the screen is changing like this.
•
Using the volume up or down button, select internal cross pattern.
•
Select service adjustment S6
•
You can see the OSD as shown in below.
4-1. Horizontal Position Adjustment
•
Select H-CENTER item, adjust H-CENTER data value to obtain proper horizontal centering of the
internal cross pattern at the left and right of the screen.
4-2. Vertical Position Adjustment
•
Select V-CENTER item, adjust V-CENTER data value to center the raster properly on the screen.
ALIGNMENT INSTRUCTIONS
IF CONTROL
AUTO RFAGC START
RFAGC DELAY 2.0
AGC POINT 3.75
A/D VALUE 9DH
FM/AM PRESCALE 18
SCART PRESCALE 18
MONITOR VOLUME 119
MOVE ADJUST RECALL : SET
NORMAL BLACK WHITE100 WHITE60 CROSS
WVPOS 48
W-VSIZE 22
W-VLIN 13
W-VS 12
W-PCUTION 17
W-TILT 37
W-TOPC 0
W-BOTC 2
H-CENTER 11
V-CENTER 22
V-LIN 13
H-SIZE 27
V-SIZE 96
V-S 12
V-SIZE-C 7
PIN 30
TILT 37
TOP-C 2
BOT-C 3
8
ALIGNMENT INSTRUCTIONS
4-3. Vertical Size Adjustment
•
Select “V.SIZE” item, adjust “V.SIZE” data value to proper vertical size as follows.
5) WHITE BALANCE ADJUSTMENT(S8)
•
Receive a good local channel.
•
Enter the service mode and select service adjustment S8.
•
You can see the OSD as shown in below.
•
Using volume up or volume down, adjust service adjustment data of RD/GD/BD and RB/GB/BB until a good gray
scale with normal whites is obtained.ALIGNMENT INSTRUCTIONS
•
Press the DISPLAY button to memorize the data.
6) DIGITAL PRESET(D.P) ADJUSTMENTS(S9)
SUBBRIGHTNESS ADJUSTMENT
•
Receive a good local channel.
•
Enter the service mode and select service adjustment S9.
•
You can see the OSD as shoown in below.
RD 63
GD 15
BD 63
RB 127
GB 160
BB 127
MOVE ADJUST RECALL : SET
SUB BRIGHTNESS 75
DP-CONTRAST 27
DP-SHARPNESS 5
DP-COLOR 27
DP-TINT 38
VIDEO LEVEL 7
FM LEVEL 30
MOVE ADJUST RECALL : SET
9
ALIGNMENT INSTRUCTIONS
•
Select Subbrightness item, adjust Subbrightness data value
to obtain normal
brightness level.
•
Press the DISPLAY button to memorize the data.
CONTRAST
•
Fixed value = 27
TINT
•
Fixed value = 38
COLOR
•
Fixed value = 27
7) FACTORY OUTGOING MODE (S12 : FACT)
•
If you select the S12, then the set becomes factory outgoing status.
•
You can see the OSD “outgoing OK”
6&+(0$7,&',$*5$0
&,5&8,7',$*5$0
6(5926<6&21&(&&,5&8,7',$*5$07'(&.
11
ELECTRICAL PARTS LIST
LOC PART CODE PART NAME PART DESCRIPTION REMARK
ZZ100 48B4343A05 TRANSMITTER REMOCON R-43A05 (AA)
ZZ110 PTACPWD403 ACCESSORY AS DTH-29M2FS
30 4850Q00810 BATTERY R6P/LN
M821 4858213800 BAG INSTRUCTION L.D.P.E T0.05X250X400
ZZ120 PTBCSHD403 COVER BACK AS DTH-29M2FS
M211 4852157100 COVER BACK FR HIPS BK
M591 4855934100 DECO AV PVC CL T0.2
M781 4857817630 CLOTH BLACK FELT 400X20X0.7
M782 4857817612 CLOTH BLACK FELT 250X20X0.7
ZZ130 PTPKCPJ811 PACKING AS DTQ-29M2
M641 6520010100 STAPLE PIN 18M/M J D O
M681 4856812400 BAND 18MM X 3M
M801 4858057600 BOX CARTON DW-3
M811 4858194600 PAD A EPS
M821 4858215600 BAG P.E PE FOAM t0.5x1600x1270
ZZ131 58G0000145 COIL DEGAUSSING DC-29S2
ZZ132 48519A4210 CRT GROUND NET 2901H-1015-2P
ZZ140 PTCACAD403 CABINET AS DTH-29M2FS
40 2TF01612CL TAPE FILAMENT 12MMX55ME CLEAR
M191A 7178301011 SCREW TAPPTITE TT2 WAS 3X10 MFZN
M201A 4856015800 SCREW CRT FIX L=27
M201B 4856215402 WASHER RUBBER CR T2.0
M201C 4856013610 SCREW SPKR FIX L=16 A=17
M201D 4856816300 CLAMP WIRE NYLON 6 (V0)
M211A 7172401612 SCREW TAPPTITE TT2 TRS 4X16 MFZN BK
M211B 7172401612 SCREW TAPPTITE TT2 TRS 4X16 MFZN BK
M211C 7172401612 SCREW TAPPTITE TT2 TRS 4X16 MFZN BK
M352 4853535600 HOLDER CORD NYROLN 66
M481 4854857401 BUTTON POWER A ABS GY
M481A 4856715600 SPRING SWPA PIE 0.4
M541 4855419800 SPEC PLATE ART 150
M561 48556174SD MARK BRAND SILVER DIA-CUTTING
M591 4855934202 DECO PLATE ABS GY
M591A 7172401612 SCREW TAPPTITE TT2 TRS 4X16 MFZN BK
M592 4855934601 DECO EYE ABS BLUE
M592A 7178301212 SCREW TAPPTITE TT2 WAS 3X12 MFZN BK
M593 4855934100 DECO AV PVC CL T0.2
M781 4857818702 CLOTH BLACK FELT T0.7 L=350 W=15
M782 4857821102 CLOTH BLACK FELT 340X10X1.5
M901 2224050027 BOND SILICON TSK-5370
SP01A 7172401212 SCREW TAPPTITE TT2 TRS 4X12 MFZNCK
SP02A 7172401212 SCREW TAPPTITE TT2 TRS 4X12 MFZNCK
V901 4859629662 CRT A68KTB259X010 M16
ZZ200 PTFMSJD403 MASK FRONT AS DTH-29M2FS
M201 4852075201 MASK FRONT HIPS GY
M251A 4852541301 GRILL R PS T0.45
M251B 4852541401 GRILL L PS T0.45
ZZ202 PTSPPWD403 SPEAKER AS DTH-29M2FS
P601A 4850704S31 CONNECTOR YH025-04+35098+ULW=800
SP01 4858311110 SPEAKER 12W 8 OHM SP-58126F
SP02 4858311110 SPEAKER 12W 8 OHM SP-58126F
ZZ204 PTJASWJ811 PCB JACK AS DTQ-29M2
JA02 4859105450 JACK PIN BOARD YSC03P-4120-9S
M112 4851114001 PANEL AV ASSY 2326801+5934300
M112A 7178301011 SCREW TAPPTITE TT2 WAS 3X10 MFZN
M684 4856812001 TIE CABLE NYLON66 DA100
P201A 4850705S04 CONNECTOR YH025-05+YST025+ULW=400
ZZ200 PTJAJAJ811 PCB JACK AXIAL AS DTQ-29M2
A001 4859802917 PCB JACK 79.05X27.3(197X246/14)S1B
CC608 CCZB1H102K C CERA 50V B 1000PF K (AXIAL)
CCS07 CCZB1H102K C CERA 50V B 1000PF K (AXIAL)
RC636 RD-AZ473J- R CARBON FILM 1/6 47K OHM J
RCS33 RD-AZ473J- R CARBON FILM 1/6 47K OHM J
ZZ210 PTUNSWJ811 PCB UNION AS DTQ-29M2
A001 4859806060 PCB UNION 246X35(246X246/6) S1B
DF01 DKLR114L-- LED KLR114L
IF01 1SR9HP---- IC PREAMP SR-9HP
IF02 1PNA4603H- IC PHOTO SENSOR PNA4603H
M191 4851942400 BUTTON CTRL 4946801+5540901
P103A 4850703S19 CONNECTOR YH025-03+YST025+ULW=300
P701A 4850705S02 CONNECTOR YH025-05+YST025+ULW=200
ZZ200 PTUNJBJ811 PCB UNION M-10 AS DTQ-29M2
ZZ200 PTUNJRJ811 PCB UNION RADIAL AS DTQ-29M2
SW702 5S50101Z90 SW TACT THVV502GDA
SW703 5S50101Z90 SW TACT THVV502GDA
SW704 5S50101Z90 SW TACT THVV502GDA
SW705 5S50101Z90 SW TACT THVV502GDA
SW706 5S50101Z90 SW TACT THVV502GDA
ZZ200 PTUNJAJ811 PCB UNION AXIAL AS DTQ-29M2
C701 CBZF1H104Z C CERA SEMI 50V F 0.1MF Z
CC716 CCZF1H103Z C CERA 50V F 0.01MF Z
CF01 CCZF1H103Z C CERA 50V F 0.01MF Z
D721 DMTZJ5R6B- DIODE ZENER MTZJ 5.6B
R701 RD-AZ240J- R CARBON FILM 1/6 24 OHM J
RC742 RD-AZ222J- R CARBON FILM 1/6 2.2K OHM J
RC746 RD-AZ152J- R CARBON FILM 1/6 1.5K OHM J
RC747 RD-AZ392J- R CARBON FILM 1/6 3.9K OHM J
RC750 RD-AZ102J- R CARBON FILM 1/6 1K OHM J
RC751 RD-AZ102J- R CARBON FILM 1/6 1K OHM J
RF01 85801065GY WIRE COPPER AWG22 1/0.65 TIN COATING
LOC PART CODE PART NAME PART DESCRIPTION REMARK
“ “ is a safety part, so it must be used the same part.
“
” is a recommendable part for essential stock.
CAUTION
2
2
!
!
!
R
R
R
R
R
R
!
R
R
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