DAEWOO ELECTRONICS DTQ-29G1TS User manual

1
TABLE OF CONTENTS
1. SPECIFICATIONS........................................................................................................................... 2
2. EXTERNAL VIEW............................................................................................................................ 3
3. BLOCK DIAGRAM ......................................................................................................................... 6
4. ALIGNMENT INSTRUCTION ......................................................................................................... 7
5. IC DESCRIPTION ........................................................................................................................... 15
6. CIRCUIT DESCRIPTION ................................................................................................................ 29
7. TROUBLE SHOOTING GUIDE .......................................................................................................32
8. ELECTRICAL PARTS LIST............................................................................................................. 40

2
1. SPECIFICATIONS
MODEL NAME DTQ-25G1TS/TSP DTQ-29G1TS/TSP DTQ-29G3TS/TSP
TV Standard NTSC-M NTSC-M NTSC-M
Main Voltage TS: 120V 60Hz
TSP:220V 50/60Hz TS: 120V 60Hz TSP:220V 50/60Hz TS: 120V 60Hz TSP:220V 50/60Hz
Power Consumption 115W 125W 125W
Tuning System Frequency Synthesizer Frequency Synthesizer Frequency Synthesizer
Receiving Channels 181 Channels 181 Channels 181 Channels
Sound Output 3W 3W 3W
Speaker 7W 16
 7W 16  7W 16 
Antenna Input Impedance 75
 75  75 
CRT A59KTB41
 02(D) A68KTB141  010 A68AEG25  02
AUX. Terminal
(INPUT) Front : Video, Audio(R/L) Rear : Video, Audio(R/L) Front : Video, Audio(R/L) Rear : Video, Audio(R/L) Front : Video, Audio(R/L) Rear : Video, Audio(R/L)
AUX. Terminal
(OUTPUT) Front : Earphone (Stereo) Rear : Video, Audio(R/L) Front : Earphone (Stereo) Rear : Video, Audio(R/L) Front : Earphone (Stereo) Rear : Video, Audio(R/L)
Weight 33kg 44kg 44kg
Remocon Type R-35H13 R-35H13 R-35H13
Dimension (BOX)
(SET) 779
 532  604mm
728
 520  459mm 887
 692  565mm
807
 606  500mm 897
 664  580mm
758
 560  486mm
Special Function 2 Channel PIP Function 2 Channel PIP Function 2 Channel PIP Function
3-language OSD 3-language OSD 3-language OSD
With Caption With Caption With Caption
CH Label CH Label CH Label
Auto Demo Auto Demo Auto Demo
Stereo/SAP Stereo/SAP Stereo/SAP

3
2. EXTERNAL VIEW
MODEL NAME :DTQ-29G1TS/TSP
DTQ-25G1TS/TSP
FRONT VIEW
REAR VIEW

4
MODELNAME:DTQ-29G3TS/TSP
FRONT VIEW
REAR VIEW

5
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 PIP ON/OFF
Use this button to turn PIP on/off.
4 PIP POSITION
Use this button to turn PIP display position.
5 PIP SOURCE
Use this button to select PIP source.
6 PIP SWAP
Use this button to exchange PIP source and main source.
7 PIP STILL
Use this button to stillPIP source.
8 0-9
Use these buttons to change channels.
9 SLEEP
Use this button to program the TV to turn off after a certain
time.
10 RECALL
- Use this button to display the channel
number, channel labeland stereo status
- Use this button repeatedly to select the
main menu or sub menu.
11 TV/VIDEO
Use this button to select main picture source.
12 FAVORITE CH
Use this button to scan through your favorite channels
only skipping other channels you do not normally watch.
13 CAPTION
Use this button to select a caption mode.
14 MTS
Use this button to selectone mode ofMono,Stereo or SAP
15

CH

Use this button to change main channel/PIP channelor select items in the menu system.
16

VOL

Use this buttons to change TV’s sound volume,to activate selections in the menu system, or to change
audio and video setting.
17 MENU
Use this button to turn the TV’s menu system on and off.
REMOCON

6
3. BLOCK DIAGRAM

7
4. ALIGNMENT INSTRUCTION

Service Mode Adjustment
1. How to enter into Service Mode

Directthe remote control to the reception window of TV.

Push buttons of remote controlin sequence.
1

MUTE

RECALL

MUTE

Then, the screen will appear as follows.
When you select a item, its turns into the red.
2. How to memorize the adjusted settings in service mode
; Must press RECALL button the state which the screen is displaying each of service menus after all
adjustments are completed each of all service menu.

PCB ADJUSTMENT
1. APC DET & PLL Tuning adjustment.(S5)

Receive the signal ofRF 100% Full color bar 85dB

.

Select the S5 of service mode to display items, then press the

CH

.

Select AUTO ADJ, execute Auto adj.Start.

Confirm the OSD ofAuto adj.OK.

Press the RECALL key of service remote controlto store.
S2 SCRN
S5 IFC
S6 GEO
S8 W/B
S9 DP
S10 MTS
S12 FACT
S7 PIP

Prev

Select

Adjust
IF CONTROL
# RF.AGC.D 32
APC.DET 31 AGC.DET 1
PLL.TUN 69 AGC.DEF 0
VIDEO L 4
FM.LEV 16

Move

Adjust
RECALL : SET
# AUTO ADJ START

8
2. STEREO/SAP AUTO ADJUSTMENT(S11)

Receive theZenith MTS signal of 1kHz CH.

Select the S10 ofservice mode to display items, then press the

CH

.

Select Auto off, then execute Auto on.

Press the RECALL key of remote control to store.

Select L only or R only channel, then confirm stereo separation.

ASSEMBLY ADJUSTMENT
1.SCREEN ADJUSTMENT(S2)

Select the S2 of service mode to display items,then press the

VOL

.

Adjust the Screen Volume of FBT in order to horizontal line of screen disappear.

Press

VOL

of remote control.
2.FOCUS ADJUSTMENT(FBT FOCUS VR)

Receive the Retma pattern.

Adjust the Focus Volume of FBT to obtain the clearest picture.
3. Geometric Adjustment(S6)

Receive the Retma Pattern.

Select the S6 of service mode to display items,then press the

CH

.

HorizontalCenter Adjust.

Select H_Phase, then adjust step so that the left & right width of picture be same.

Vertical Center Adjust.

Select Ver_DC, then adjust V.DC so that the horizontalline of Retma Patterns center may meet with
the mechanical center of CRT.

Vertical Size Adjust.

Select V_Size, then adjust V_Size so that the center of circumference of big circle may meet with the
upper and lower sides of the screen.
MTS READ ALR1:10h ALR2:89h
INPUT LEVEL 8
SC 0 A1X 16
VR 94 TZCM 1 A2X 9
VL 94 LMU 0 AT 0
GMU 0 EF 0 TC 0
CCD 1 STS 1

Move

Adjust
RECALL : SET
# AUTO OFF

9

Press the RECALL key of remote controlto store.

HorizontalSize Adjust.

Adjust RV401 so that 2-2 point of the horizontal screen may meet with the R/L side.

Side Pincusion Correction Adjust.

Receive the Cross Hatch Pattern.

Adjust RV402 so that the verticalline is perpendicular.
GEOMETRY
# V.DC 32
# V.SIZE 32
NO SD POWER OFF YES

Move

Adjust
RECALL : SET
# H_PHASE 4
1 1

10
4.RF AGC ADJUSTMENT(S5)

Receive the signalof RF 100% Full color bar 60dB

.

Connect Scope to P102.

Select the S5 of service mode to display items,then press the

CH

.

Select RF AGC.D, then adjust the maximum voltage of scope to alternate 1V.

Press the RECALL key to store.
5.WHITE BALANCE ADJUSTMENT(S8)
* Execute HEAT RUN of the TV SET over 30 minutes
* Connect the signal output of WHITE BALANCE TESTER(Nitsuki2840) to the ANTENNA (or VIDEO IN)
input ofthe TV SET. Stick and fix the SENSOR to the center position of CRT.
* Select the S8 ofservice mode to display items, then press the

CH

.
* Adjust the R,G,B BIAS and R,B DRIVE value in order thatR,G,B of the HIGH BEAM and LOW BEAM
may meet with the CENTER LED of each measuring instrument.
* At this time, the memorized coordinates of the WHITE BALANCE TESTER, unless otherwise specified,
use following coordinates and color temperature (3~5ftL 270 X 270)
IF CONTROL
# AUTO ADJ START
APC.DET 31 AGC.DET 1
PLL.TUN 69 AGC.DEF 0
VIDEOL 4
FM.LEV 16

Move

Adjust
RECALL : SET
# RF.AGC.D 32
MAIN W/B
R-DRIVE 64
B-DRIVE 64
R-BIAS 64
G-BIAS 64
B-BIAS 64

Move

Adjust
RECALL : SET

11
6.D.P ADJUSTMENT.

Receive the Retma Pattern.

Select the S9 of service mode to display items, then press the

CH

.

Select of Brightness, then adjust Sub Bright level in order that the gradation pattern may serve 18%

Press the RECALL key to store.
7. PIP DATA ADJUSTMENT.

Select the S7 of service mode to display items,then press the

CH

.

Adjust PIP sub data.(color : 50, Tint : 55, Cont : 40, Brig : 20)

Press the RECALL key to store.
D.P
# Brightness 18
Tint 32
Color 30

Move

Adjust
RECALL : SET
PIP
Color 55 12h<6:0>
Tint 50 01h<5:0>
CONT 45 06h<6:0>
Brig 15 0Fh<7:3>
y-dl 4 04h<3:0>
H-Pos 103 0Ch<7:0>
V-Pos 152 0Ah<7:0>

MOVE

Adjust
RECALL:SET

12
8.FORWARDING MODE(S12)

Select the S7 of service mode to display items,then press the

CH

.
MEMORY

13

INITIAL DATA
1. LA76070A Bit Map.
SUB
ADD.
MSB DATA LSB Default Remark
DA0 DA1 DA2 DA3 DA4 DA5 DA6 DA7
00h T_Enable Vid_Mute Sync_Kill 08h
01h AFC Gain H_phase 04h
02h IF AGC SW AFT DEF RF_AGC_Delay 20h
03h VIDEO SW PLL TUNING 40h
04h Aud_Mute APC DET ADJUST 20h
05h VCD MODE Ver_DC 20h
06h Ver_kill Col_kill Ver_Size 20h
07h R_Bias 40h
08h G_Bias 40h
09h B_BIAS 40h
0Ah BLK_DEF R_Drive 40h
0Bh Drv_Test B_Drive 40h
0Ch C_Diff Bright 64h
0Dh Cot_Test Contrast 64h
0Eh Trap D_SW A Fresh Black ST Sharpness 38h
0Fh Tin_Test Tint 30h
10h Col_Test Color 3fh
11h V-test 00h
12h VIDEO LEVEL FM LEVEL 90h
13h N/I SW AUDIO SW VOLUME 00h

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2. TDA9852 Bit Map
3. M65617SP SVC MODE INITIAL DATA.
FUNCTION Register MSB LSB Initial Data
D7 D6 D5 D4 D3 D2 D1 D0
Volume R VR 0 VR6 VR5 VR4 VR3 VR2 VR1 VR0 0100 0111
Volume L VL 0 VL6 VL5 VL4 VL3 VL2 VL1 VL0 0100 0111
Control 1 CON1 GMU AVLON LOFF CCD 0 SC2 SC1 SC0 1101 0000
Control 2 CON2 SAP Stereo TZCM 1 LUM EF2 EF1 EF0 0101 1000
Control 3 CON3 0 0 0 0 L3 L2 L1 L0 0000 1000
Alignment 1 ALR1 0 0 0 A14 A13 A12 A11 A10 0001 0000
Alignment 2 ALR2 STS 0 0 A24 A23 A22 A21 A20 1000 1001
Alignment 3 ALR3 ADJ AT1 AT2 0 1 TC2 TC1 TC0 0000 1011
PIP
Color 55 12h<6:0>
Tint 50 01h<5:0>
CONT 45 06h<6:0>
Brig 15 0Fh<7:3>
y-d1 4 04h<3:0>
H-Pos 103 0Ch<7:0>
V-Pos 152 0Ah<7:0>
 MOVE 
Adjust
RECALL:SET

15
5. IC DESCRIPTION

I701
- LC864720/32A (M-com)
1. BLOCK DIAGRAM

16
2.PIN DESCRIPTION
PIN NAME FUNCTION REMARK
1 I.D In - CCTV I.D Input Terminal
- Normal : High CMOS Push-Pull
2
N.C
(P11)
CMOS
Push-Pull
3
MAIN CLOCK
OUTPUT(P12)
- LA76070/TDA9852/M65617SP/EEPROM CLOCK Output Terminal CMOS
Push-Pull
4
MAIN DATA
IN/OUT(P13)
- LA76070/TDA9852/M65617SP/EEPROM DATA In-Out Terminal CMOS
Push-Pull
5
TUNER CLOCK
OUTPUT(P14)
- PLL IC(TD6359P) CLK Output Terminal CMOS
Push-Pull
6
TUNER DATA
OUTPUT(P15)
- PLL IC(TD6359P) DATA Output Terminal CMOS
Push-Pull
7
MAIN TUNER
ENABLEOUT(P16)
- MAIN TUNER ENABLE CMOS
Push-Pull
8
SUB TUNER
ENABLE OUT(P16)
- SUB TUNER ENABLE CMOS
Push-Pull
9
Vss - GND
10
XT1 - 32.768 KHz X-TAL
11
XT2 - OSD oscillator
12
Vdd
- +5V(  10%)
13
MAIN AFT Input
(P90/AN0)
- MAIN IC(LA76070A) Output DC 0 ~ Vdd
Center : 2.5V A/D CONV. 5Bit
14
SUB AFT Input
(P91/AN1)
- SUB TUNER output DC 0 ~ Vdd
Center : 2.5V A/D CONV. 5Bit
15
SET KEY IN
(P92/AN2)
- POWER, CH UP/DOWN, VOL UP/DOWN,MENU
- See Schematic Diagram. A/D CONV. 5Bit
16
/RESET - SYSTEM Reset(Hardware Reset) Input Terminal
- ACTIVE Low
17
FILT OUTPUT - Filter terminal for PLL
18
CVIN - Video signal input terminal for CAPTION 1Vpp In

17
19 /V-Sync - Sync.signal for Vertical position.
- 0 ~ 5V pulse
- Detect input- Active Low
20
/H-Sync - Sync. signal for Hor_position
- 0 ~ 5V pulse
- Detect input - Active Low
21
22
23
24
R
G
B
OSD Ys
- Detect input - Active High
- Dot pattern of OSD Output
25
PWM 0 - N.C
26
PWM 1 - N.C
27
PWM 2 - N.C
28
MAIN SW OUT
(PWM 3)
- MAIN TV/VIDEO SWITCHING
- TV MODE : High
 PWM Max 128(7Bit) Output
- VIDEO MODE : Low
 PWM Min 0 Output
- DEFAULT™œ TV MODE
Open Drain
Output
29
SW V.MUTE OUT
(PWM 4)
- MAIN/SUB SWITCHING : MAIN V.MUTE OUT Terminal
- Normal : High
 PWM Max 128(7Bit) Output
When V.MUTE : Low
 PWM Min 0 Output
Open Drain
Output
30
SUB SW OUT
(PWM 5)
- SUB(PiP) TV/VIDEO SWITCHING
- TV MODE : High
 PWM Max 128(7Bit) Output
- VIDEO MODE : Low
 PWM Min 0 Output
- DEFAULT VIDEO MODE
Open Drain
Output
31
P70/INT0 - X-Ray IN
32
Sub SD Input
P71/INT1
- Sub Tuner Level Sync signal input - High : normal
- Low : NO Signal
33
Main SD Input
Sync.signal in
(TIM0)
- Main Tuner Level Sync signal input - High :normal
- Low :NO Signal
34
Remote Control
Input (INT3)
- REMOTE CONTROL Signal input Terminal
-REMOTE CONTROL TRANSMITTER : M50560-388GP OR M50560-001
CUSTOM MODE 14h
35
Option A IN
(P00)
- HIGH : PIP FUNCTION
- LOW : NO PIP CMOS Push Pull
PIN NAME FUNCTION REMARK

18
36 Option B IN
(P01)
- HIGH : AV PIP FUNCTION
- LOW : 2-TUNER PIP FUNCTION CMOS Push Pull
37
Option C IN
(P02)
- HIGH : AV VIDEO MODE
-LOW :NO VIDEO MODE CMOS Push Pull
38
Option D IN
P03
- HIGH : MONO
- LOW : STEREO/SAP FUNCTION
39
P04 - N.C
40
P05 - N.C
41
P06 - N.C
42
Power Control
Output
(P07)
- Active High
- Low state at initial condition(RESET)
- Toggle Low/High when Power key input is detected.
Low
 Power OFF
High
 Power ON
- Automatically turns to Low when Sleep Timer (count down) counts "0"
- Automatically turns to Low when the OFF TIMER is set and the clock(TV)
indicates OFF-TIME.
- Automatically turns to High when the ON TIMER is set and the clock(TV)
indicates ON-TIME.
- Automatically turns to Low when Auto Power OFF.
CMOS
Push-Pull
PIN NAME FUNCTION REMARK

19

I501
- LA76070A (IC VIDEO PROCESSOR)
1.BLOCK DIAGRAM