Daewoo DTQ-29U1SCV Manuel utilisateur
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.
Service Manual
Color Television
S/M No : TCN400FNF0
JUNE. 2005
CHSSIS MODEL
CN-400FN DTQ-29U1SCV
DTQ-29U1SSFV
DTQ-29U1SCSV
DTQ-29U5SSFV
CN-401FN DTQ-29U4SCV
-1-
SAFETY PRECAUTIONS 2
SPECIFICATIONS 5
CIRCUIT BLOCK DIAGRAM 6
ALIGNMENT INSTRUCTIONS 7
YOUR REMOTE CONTROL 7
SERVICE MODE ADJUSTMENT 8
ASSEMBLY ADJUSTMENT 10
IC DESCRIPTION 14
UOC III SERIES 14
TDA8358J VERTICAL AMPLIFIER 19
TDA6107AJF 21
24WC16-16 KB EEPROM 22
LA42072N-E AUDIO AMPLIFIER 23
STR-W6735/56 24
WAVEFORMS 33
TROUBLE SHOOTING GUIDE 35
NO POWER 35
NO PICTURE 36
NO SOUND 37
CH DON’T MEMORY or SKIP 38
NO COLOR 39
NO VERTICAL DEFLECTION 39
REMOTE CONTROL DOESNOT OPERATE 40
ELECTRICAL PARTS LIST 41
DIFFERENT PARTS LIST 53
PRINTED CIRCUIT BOARD 56
SCHEMATIC DIAGRAM 59
EXPLODE VIEW 61
TABLE OF CONTENTS
APPENDIX(Appendix is provide only by internet[http://svc.dwe.co.kr])
-6-
CIRCUIT BLOCK DIAGRAM
-8-
ALIGNMENT INSTRUCTION
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.
SERVICE 02
SERVICE 03
SERVICE 04
SERVICE 05
SERVICE 06
SERVICE 07
SERVICE 08
SERVICE 09
SERVICE 10
SERVICE 11
SERVICE 12
VWSELECT CBADJUST LEXIT
- Using the channel up or channel down button, select the item you wish to adjust.
(The color of selected item turns into the blue.)
-
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.
- Don’t have to press any 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 ADJUSTMENT NOTES
REPLACED NECESSARY UNNECESSARY
I701 O Data is stored in I702.
(U-COM)
Initial setting values are written from I701.
I702 ADJUSTING ITEMS
(EEPROM) O S6 : Geometry adjustmrnt
S8 : White balance
S9 : Subbrightness
Adjust items related to picture tube only.
CRT O (White Balance adjustment)
CRT OPTION (Screen Option adjustment)
-9-
ALIGNMENT INSTRUCTION
Table-B. CN-400FN(DTQ-29U1SCV) EEPROM DATA
MODE NAME VAL
REMARKS
MODE NAME VAL
REMARKS
S1 HEAT RUN RUN OFF SOC 0
OEC : 650V PWLDAC 0
RCA : 850V CL 10
S5 AGC LEVEL 22 CLD 0
IFOFF 37 GAM 1
QSS 1 HCT 0
BPB 1 ACL 0
FMI 1 BPS 1
AGN 0 CHSE 2
BPBS 1 FCO 0
DSG RF:0, AV:1 CBPS 1
Fine Tunning CB 0
FILTBW 0 MUS 0
IDMOD 1 FFI 0
OVMTHR 1 R-GAIN 32
IDMOD SLOW KOR 1 G-GAIN 32
V.SIZE 43 B-GAIN 40
V.CENTER 42 R-BIAS 32
V.SLOPE 28 G-BIAS 32
V.LINEARITY 37 SRC R-BIAS 32
S_CORRECTION 32 SRC G-BIAS 32
H.CENTER 45 CVI R-BIAS -8
H.SIZE 54 CVI G-BIAS 10
H.PARALLEL 33 DP-Brightness 10
H-BOW 35 DP-Contrast 10
PARABOLA 17 DP-Color 5
EW TRAPEZ 38 DP-Sharpness 18
CORNER TOP 54 S10 OPTION
CORNER BOTTOM 46 S12 FACTORY SET
CFCLF 1
YD TV RF:4, AV:7
DTR 0
BPYD 0
TCCON 1
TCI2X 0
PF 3
TFR 1
NRR 0
WS 3
BLS 0
DSK 0
AAS 2
BSD 0
BKS 1
DSA 0
RPO 3
RPA 2
BPD 0
S7-2
SCREEN ADJUSTS2
S9
S8
S6
S7-1
-10-
ALIGNMENT INSTRUCTION
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 S2 button to exit in the screen adjustment mode.
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) AGC ADJUSTMENT
Adjust the antenna signal level at 60 dBuV
Tune a colour bar pattern.
Find the "AGC" item in service mode.
(it's two way to entering the "AGC" item in service mode)
- Enter the service mode and select service adjustment S5 and select AUTO-AGC.
- Enter the service mode and select service adjustment S3.
Wait until AGC level stabilise to the optimum value.
Alternatively,
Enter the service mode and select service adjustment S5 and select AGC LEVEL.
Use "Vol Up/Dwn" keys to adjust manually to the desired Tuner Take Over Point.
4) GEOMETRIC ADJUSTMENTS (S6)
Select service adjustment S6
You can see the OSD as shown in below.
V.SIZE 43 H.PARALLEL 33
V.CENTER 42 H-BOW 35
V.SLOPE 28 PARABOLA 17
V.LINEARITY 37 EW TRAPEZ 38
S_CORRECT
32 CORNER TOP 54
H.CENTER 45 CORNER BOTTOM 46
H.SIZE 54
SELECT ADJUST EXIT
-11-
ALIGNMENT INSTRUCTION
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.SLOPE item, adjust V.SLOPE data value to equalize half the screen with
center of the picture.
Select V.CENTER item, adjust V.CENTER data value to center the raster properly
on the screen.
4-3). Vertical Size Adjustment
Select V.SIZE item, adjust V.SIZE data value to proper vertical size as follows.
Select V.LINEARITYitem, adjust V.LINEARITYdata value to proper vertical linearty.
-12-
ALIGNMENT INSTRUCTION
4-4). EAST / WEST Adjustment
Adjust the H.PARALLEL, H.SIZE, H-BOW, PARABOLA, EW TRAPEZ, CORNER TOP,
CORNER BOTTOM to compensate for geometrical distortion.
H.PARALLEL H.SIZE
PARABOLA CORNER TOP, CORNER BOTTOM
EW TRAPEZ
-13-
ALIGNMENT INSTRUCTION
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.
R-GAIN 32 SRC R-BIAS 32
G-GAIN 32 SRC G-BIAS 32
B-GAIN 40 CVI R-BIAS -8
R-BIAS 32 CVI G-BIAS 10
G-BIAS 32
Using volume up or volume down, adjust service adjustment data of R-GAIN/G-GAIN/B-GAIN and
R-BIAS/G-BIAS until a good gray scale with normal whites is obtained.ALIGNMENT INSTRUCTIONS
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 shown in below.
DP-Bri
g
htnes
s
10
DP-Contrast 10
DP-Color 5
DP-Shar
p
nes
s
18
Select DP-Brightness item, adjust DP-Brightness data value to obtain normal
brightness level.
DP-Contrast
Fixed value = 10
DP-Color
Fixed value = 5
DP-Sharpness
Fixed value = 18
7) FACTORY OUTGOING MODE (S12 : FACT)
If you select the S12, then the set becomes factory outgoing status.
You can see the OSD "SHIPPING OFF"
SELECT ADJUST EXIT
SELECT ADJUST EXIT
-14-
IC DESCRIPTION
1-1. UOC III BLOCK DIAGRAM
1. UOC III RERIES
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