Daewoo DTD-29U9WPT, DTD-29UWP, FP-68T30, CM-916F-010 Schematic
CONTENTS
Specification ......................................................................2
Block Diagram....................................................................3
Connection Diagram ............................................................4
Alignment Instruction............................................................5
Trouble Shooting Charts .......................................................14
Part List ............................................................................24
Option Part List...................................................................48
Printed Circuit Boards ...........................................................50
Circuit Schematics...............................................................55
Wave Form........................................................................63
Exploded View....................................................................64
- 1 -
Safety Instruction
NOTE
BEFORE SERVICING THIS CHASSIS READ THE “X-RAY RADIATION PRECAUTIONS”,
“SAFETY PRECAUTIONS” AND “PRODUCT SAFETY NOTICE” BELOW.
X-RAY RADIATION PRECAUTIONS
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
29kV(29”) at max beam current. The high voltage must
not, under any circumstances, exceed 30.5kV(29”).
Each time a receiver requires servicing, the high voltage should be checked. It is recommended the reading
SAFETY PRECAUTIONS
1. Potentials of high voltage are present when this
receiver is operating. Operation of the receiver outside
the cabinet or with the back cover 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) Always discharge the picture tube to avoid the shock
harzard before removing the anode cap.
3) 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.
of the high voltage recorded as a part of the service
recorded as a part of the service records. 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 continuous RADIATION
protection, the replacement tube must be exactly the
same type tube as specified in the “PART LIST”.
2. If any FUSE in this TV receiver is blown, replace it will
the FUSE specified in the “PART LIST”.
3. When replacing a high wattage resistor (oxide metal
film resistor) in circuit board, keep the resistor 10mm
away from circuit board.
4. Keep wires away from high voltage or high temperature
components.
5. This receiver must operate between AC100~240 volts,
50/60Hz. NEVER connect to DC supply or any other
power or frequency.
PRODUCT SAFETY
Many electrical and mechanical parts in this chassis 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 supple-
ments, electrical components having such features are
identified by designated symbol on the “PART LIST”.
Before replacing any of these components, read the “PART
LIST” in this manual carefully.
The use of substitute replacement part which do not have
the same safety characteristics as specified in the “PART
LIST” may created X-RAY RADIATION.
Specification
1. DTD-29U9WP(T)
TV Standard Color System PAL, SECAM, 4.43NTSC(AV), 3.58NTSC
Sound System B/G, D/K, I, M
Rated Voltage AC 110V~240V, 50/60Hz
Power Consumption(at AC 220V, 50Hz) 152W
Sound Output Power Main 15W32, Woofer 15W (at 80% MOD)
Channel Coverage HYPER + CHINA + IVORY COAST
VHF L : K1(43.25MHz) ~ S7(147.25MHz)
VHF H : S8(154.25MHz) ~S41(463.25MHz)
UHF : E21(471.25MHz) ~C57(863.25MHz)
Tuning System Frequency Synthesizer Tuning System
Channel Indication On-Screen Display
Programme Selection 100 Programmes
Aux. Terminal AV-input:1, 2, 3, 4 AV-output: Scart out, Monitor out
Remote Control Unit R-30F31(Required two 1.5V batteries type with AAM size)
Dimention 843(W)3504(H)3592(D)mm
Weight 51.5Kg
Picture tube 29" flat Type
2. DTD-29U9/FP-68T30
TV Standard Color System PAL, SECAM, 4.43NTSC(AV), 3.58NTSC
Sound System B/G, D/K, I, M
Rated Voltage AC 110V~240V, 50/60Hz
Power Consumption(at AC 220V, 50Hz) 152W
Sound Output Power Main 15W32, (at 80% MOD)
Channel Coverage HYPER + CHINA + IVORY COAST
VHF L : K1(43.25MHz) ~S7(147.25MHz)
VHF H : S8(154.25MHz)~S41(463.25MHz)
UHF : E21(471.25MHz) ~ C57(863.25MHz)
Tuning System Frequency Synthesizer Tuning System
Channel Indication On-Screen Display
Programme Selection 100 Programmes
Aux. Terminal AV-input: 1, 2, 3, AV-output: Monitor out
Remote Control Unit R-30F34(Required two 1.5V batteries type with AAM size)
Dimention 843(W)3504(H)3592(D)mm
Weight 49.1Kg
Picture tube 29" flat Type
- 2 -
Block Diagram
- 3 -
Alignment Instruction
1. MAIN ADJUSTMENTS
1-1. 2-CARRIER + NICAM(MSP3410D) SOUND DETECTOR ADJUSTMENT
At first, you must put off Main Power Cord.
1) Test Equipments
(1) VTVM or VOLTAGE METER
(2) DC Power Supply X 2
(3) PIF Sweep Marker Generator
(4) Oscilloscope
2) Connection
3) Preparation
(1) Connect H-output of PIF Sweep Marker Generator to X-axis of Scope, and connect V-output
to Y-axis.
(2) Connect Sweep Signal IF output to TP2.(Set attenuator to 0dB)
(3) After set Power Supply at 12V, connect this output to TP3.
(4) Oscilloscope Scaling
a. The Horizontal(X)-axis and the Vertical(Y)-axis must be located on DC level.
b. The Horizontal time display is located on X-Y axis.
c. Set the Horizontal(X)-axis scale at 1V/DIV, to check frequency and marker.
d. Set the Vertical(Y)-axis scale at 2V/DIV.
(5) Set Marker Frequency of PIF Sweep Marker Generator as follows.(MHz)
SYSTEM Fp(n+1) Fs Fc Fp-2 Fp Fs(n-1)
P/S/N-BG/,DK,I,M 31 32.5 33.57 36 38 39.5
4) SIF Adjustment
(1) Connect ’FROM TP’ of PIF Sweep Marker Generator to TP1(I604 #12).
(2) Turn the L106(SIF Coil) so that the P marker point is located on the reference level.
- 5 -
1-2. MAIN VIDEO OUTPUT ADJUSTMENT
At first, put on Main Power Cord
1) Pattern : PAL B/G Color Bar(RF level = above 60dB)
2) Adjust the R569 to make the Video signal of JA12(AV PCB RA16
Voltage) to be 1Vp-p.
3) Adjust the R579 to make the Video signal of TP5(Main PCB C508
Voltage) to be 1Vp-p.
1-3. COMB FILTER OUTPUT ADJUSTMENT
1) Pattern : PAL B/G Color Bar(RF level = above 60dB)
2) Adjust the R259 to make the Y(Luminance) signal of TP "Y"(AV PCB JA47 Voltage) to be 1Vp-p.
1-4. RF AGC ADJUSTMENT
1) Pattern : PAL B/G 10CH Color BAR(RF Level = 60dB)
2) Connect the probe of Oscillocope to P101(Left & Right) of Main PCB.
3) Set the switch of antenna splitter to be down.
4) Main RF AGC ADJUSTMENT
After press the ’S9’ key of Service Remocon to enter the "AGC" mode.
and adjust "AGC bar " to be MAX-8step.
5) Press the ’S11’ key of Service Remocon to set the "2-Picture" mode.
6) Connect the probe of Oscillocope to P102(Left & Right) of main PCB.
7) Sub RF AGC ADJUSTMENT
(1) Turn the RP01 of PIP PCB to be the maximum voltage.
(2) Turn the RP01 of PIP PCB the voltage to be dropt 1V~1.2Vdc blow its maximum voltage.
8) Press the ’S11’ key of Service Remocon to cancel the "2-Picture" mode.
- 6 -
2. SCREEN & FOCUS ADJUSTMENTS
2-1. SCREEN ADJUSTMENT
1) Pattern : PAL B/G Retma
2) Press the key to set the "STANDARD" mode.
3) Connect the probe of Oscilloscope J914 of B-input and check the
below measurement pulse.
(Time : 5msec/DIV, Voltage : DC 1V/DIV)
4) Adjust the SCREEN VOLUME on FBT so that the measurement pulse
voltage to be 3.1V.
Time : 5msec/DIV, Voltage : DC 1V/DIV
2-2. FOCUS ADJUSTMENT
1) Pattern : Cross Hatch
2) Adjust the FOCUS TOP VOLUME(" H " remark) on FBT
so that horizontal second line will be appeared clearly.[Dynamic focus adjustment]
Adjust the FOCUS BOTTOM VOLUME(" V " remark) on FBT
so that vertical second line will be appeared clearly.[Static focus adjustment]
2-3. WHITE BALANCE ADJUSTMENT
1) Press the key to set the "STANDARD" mode.
2) Press the ’S7’ key of Service Remocon to enter the "White Balance" mode.
3) Set each R, G, B level to be center(32step) using the ’VOLUME UP’, ’VOLUME DOWN’ keys.
4) Set the reference of MINOLTA(Chroma analyzer) to be "B".
5) At high beam, set each R, G, B level to be center using the ’VOLUME UP’,’VOLUME DOWN’ keys.
6) Adjust the reference to be X=0.288, Y=0.30
- 7 -
3. SIF PCB ADJUSTMENT
3-1. SIF PCB ADJUSTMENT
1) Pattern : PAL B/G Color BAR 400Hz Mono
2) Use the ’MENU’ key and check the Sound broadcast system is "AUTO".
3) Press the ’S11’ key of Service Remocon to set the "2-Picture" mode.
4) Connect the probe of Oscilloscope to PS602(Left & Right).
5) Adjust SIF coil(L105) to make the display of Oscilloscope be sine curve.
6) Press the ’S11’ key of Service Remocon twice to cancel the "2-Picture" mode.
4. GEOMETRIC ADJUSTMENTS
4-1. GEOMETRIC ADJUSTMENT : VERTICAL SERVICE REMOCON ’S4’
HORIZONTAL SERVICE REMOCON ’S5’
4-2. VERTICAL CENTER ADJUSTMENT
1) Pattern : PAL B/G Monoscope
2) Press the key to set the "STANDARD" mode.
3) Choose the "VSH" using the ’PR UP’, ’PR DOWN’ keys.
4) Adjust the horizontal line of picture to coincide with the
mechanical center marks of the CRT using the ’VOLUME UP’, ’VOLUME
DOWN’ keys.
* If the pattern is smaller than the screen, adjust the V-size to fit.
4-3. VERTICAL SIZE ADJUSTMENT
1) Pattern : PAL B/G Monoscope
2) Press the key to set the "STANDARD" mode.
3) Choose the "VA" using the ’PR UP’, ’PR DOWN’ keys.
4) Adjust the upper part of the picture using the ’VOLUME UP’,
’VOLUME DOWN’ keys.
4-4. VERTICAL SLOPE ADJUSTMENT
1) Pattern : PAL B/G Monoscope
2) Press the key to set the "STANDARD" mode.
3) Choose the "VS" using the ’PR UP’, ’PR DOWN’ keys.
4) Adjust the lower part of the picture using the ’VOLUME UP’, ’VOLUME DOWN’ keys.
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4-5. S-CORRECTION ADJUSTMENT
1) Pattern : PAL B/G Crosshatch
2) Press the key to set the "STANDARD" mode.
3) Choose the "SC" using the ’PR UP’, ’PR DOWN’ keys.
4) Adjust each distance of horizontal line to be the same using the
’VOLUME UP’, ’VOLUME DOWN’ keys.
4-6. HORIZONTAL CENTER ADJUSTMENT
1) Pattern : PAL B/G Monoscope
2) Press the key to set the "STANDARD" mode.
3) Choose the "HSH" using the ’PR UP’, ’PR DOWN’ keys.
4) Adjust the vertical line of picture to coincide with the mechanical center marks of the CRT
using the ’VOLUME UP’, ’VOLUME DOWN’ keys.
4-7. WIDTH ADJUSTMENT
1) Pattern : PAL B/G Monoscope
2) Press the key to set the "STANDARD" mode.
3) Choose the "EW" using the ’PR UP’, ’PR DOWN’ keys.
4) Set each side over scan to be 10% using the ’VOLUME UP’, ’VOLUME DOWN’ keys.
4-8. PINCUSHION ADJUSTMENT
1) Pattern : PAL B/G Crosshatch
2) Press the key to set the "STANDARD" mode.
3) Choose the "PW" using the ’PR UP’, ’PR DOWN’ keys.
Adjust parabola width to fit on screen.
4) Choose the "CP" using the ’PR UP’, ’PR DOWN’ keys.
Adjust coner parabola to fit on screen.
5) Choose the "TC" using the ’PR UP’, ’PR DOWN’ keys.
Adjust trapezium to fit on screen.
Adjust
- 9 -
5. PICTURE ADJUSTMENTS
5-1. SUB-BRIGHTNESS ADJUSTMENT
1) Pattern : PAL B/G Retma
2) Press the key to set the "STANDARD" mode.
3) Choose the "DP" using the ’PR UP’, ’PR DOWN’ keys.
4) Check the Color 34step, the Tint 32step.
5) Maximize the Contrast.
6) Adjust the Brightness so that the second line of top appears , as follow.
2nd line
5-2. PIP SUB VIDEO LEVEL ADJUSTMENT
1) Pattern : PAL B/G Color Bar
2) Press the ’S11’ key of Service Remocon to set the "2-Picture" mode.
3) Press the ’SERVICE’ key of Service Remocon to cancel the "MENU" mode.
4) Connect the probe of Oscilloscope to PP01 of "Sub Video out".
5) Turn the RP14 of PIP PCB to make the voltage to be 1Vp-p.
6) Press the ’S11’ key of Service Remocon twice to cancel the "2-Picture" mode.
5-3. PIP Y, U, V LEVEL ADJUSTMENT"
1) Pattern : PAL B/G Color Bar
2) Press the ’S11’ key of Service Remocon to set "2-Picture" mode.
3) Press the ’SERVICE’ key of Service Remocon to cancel the "MENU" mode.
4) Connect the probe of Oscilloscope to "Y out" of PP02.
5) Adjust the RP11 to make the voltage of Main Y coincide with the Sub Y.
6) Connect the probe of Oscilloscope to of "U out" of PP02.
7) Adjust the RP13 to make the voltage of Main U coincide with the Sub U.
8) Connect the probe of Oscillocope to "V out" of PP02.
9) Adjust the RP12 to make the voltage of Main V coincide with the Sub V.
10) Press the ’S11’ key of Service Remocon twice to cancel the "2-Picture" mode.
- 10 -
5-4. 2-PICTURE CENTER ADJUSTMENT
1) Pattern : PAL B/G 10CH Color Bar 400Hz Mono
2) Press the ’S11’ key of Service Remocon twice to enter the "BG-H POSITION" menu of the
"2-Piture" mode.
3) Adjust the horizontal line of picture to coincide with the mechanical center marks of the CRT
using the ’VOLUME UP’, ’VOLUME DOWN’ keys.
4) Press the ’S11’ key of Service Remocon twice to cancel the "2-Picture" mode.
6. REMOCON
6-1SERVICE REMOCON 6-2. USER REMOCON 6-3. USER NEC REMOCON
- 11 -
6-3. ADJUSTMENT WITHOUT SERVICE REMOCON
1) Enter ’SERVICE MODE’ : Press keys of User Remocon, as follows.
’ENTER’, ’MUTE’, ’PR UP’, ’PR DOWN’,
2) Exit ’SERVICE MODE’ : ’ENTER’
3) Choice ’SERVICE MENU’ : ’PR UP’, ’PR DOWN’
4) Enter ’SERVICE SUB MENU’ : ’VOL UP’, ’VOL DOWN’
5) Adjust ’SERVICE MENU’ : ’VOL UP’, ’VOL DOWN’
SERVICE MENU SELECT 11
AGC ACTIVATE
PICTURE
WHITE BALANCE
VERTICAL
HORIZONTAL
BROADCAST-OFF YES
PAP
SOUND
CRT DRIVE 3
- 12 -
k The data of respective SETs may be different from below data.
1 . DP
CONTRAST 63
BRIGHT 27
COLOR 34
TINT 32
SHARP 32
3. VERTICAL(S4)
VSH 32
VA 40
VS 40
SC 22
VX 23
VSC 32
5. CRT DRIVE(S6)
7. BROADCAST OFF
3
YES
2. AGC(S9)
MAX - 8STEP
4. HORIZONTAL(S5)
HSH 35
EW 35
PW 40
CP 30
TC 22
6. WHITE BALANCE
R 46
G 43
B 32
8. PAP(S11)
P1 MD-H 14 P7 MA-V 4
P2 SD-H 92 P8 SA-V 28
P3 MD-V 5 PED.-U 0
P4 SD-V 5 PED.-V 0
P5 MA-H 8 BG-V 11
P6 SA-H 13 BG-H 3
9. EQUALIZER(EQU)
BAND1 15 16 7
BAND211 15 10 10
BAND3 11 11 11
BAND413 16 12 12
BAND5 14 16 13
MOVIE MUSIC NEWS
10. PRE VOLUME(PRE)
35
CM-916F Typical Service Data
- 13 -
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