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S/M No. : TCP185MEF1

Service Manual
Color Television
CHASSIS : CP-185M
Model : KR14E5/DTA-14V3VM
KR20E5/DTA-20V3VM
KR21E5/DTA-21V3VM

14V3/20V3/21V3

Specification
Version TK
TV Standard PAL-SECAM B/G-D/K
Sound system MONO
Power Consumption 14": 39W; 20": 42W; 21": 45W
Sound Output Power 2.5W(at 60% mod, 10% THD)
Speaker 3W 8 ohm
Teletext system NONE
Aerial Input 75ohm unbalanced
Channel coverage Off-air cannels, S-cable channels and hyperband
Tuning System Frequency synthesiser tuning system
14" : 34cm
Visual screen size 20" : 48cm
21" : 51cm
Channel indication On screen Display
Program selection 100 programmes
EURO-SCART:Audio /Video and Out, R/G/B in,
Auxiliary Output Terminal slow and fast wtching, SVHS in.
Audio-Video jack on front of cabinet in common
connection with EURO-SCART.
Headphone jack(3.5mm)on front of cabinet
Remote Control R-40A10

DAEWOO ELECTRONICS CO., LTD
http : //svc.dwe.co.kr Feb. 2001
TABLE OF CONTENTS
SAFETY INSTRUCTION......................................................................................................................2
SPECIFICATIONS ...............................................................................................................................3
1. 21 Pin EURO-SCART ..................................................................................................................................3
2 Channel table ...............................................................................................................................................4

CIRCUIT BLOCK DIAGRAM...............................................................................................................6
ALIGNMENT INSTRUCTIONS ............................................................................................................7
1. Service mode ...............................................................................................................................................7
2. Microcontroller configuration ........................................................................................................................7
3. TV SET Alignment........................................................................................................................................7

SCHEMATIC DIAGRAM......................................................................................................................9
EXPLODED VIEW ...............................................................................................................................10
PRINTED CIRCUIT BOARD................................................................................................................13
SERVICE PARTS LIST........................................................................................................................14
1. The different parts list...................................................................................................................................19

APPENDIX (Appendix is provide only by internet [http://svc.dwe.co.kr])

FUNCTIONAL DESCRIPTION ............................................................................................................1
IC DESCRIPTION ................................................................................................................................16

1
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 22-23 kV (14" or
)
24-26 kV (20"- 21" at max beam current. The high voltage must not, under any circumstances, exceed 27.5 kV (14"
) ,
20" 29KV (21" 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 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)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 body 10 mm away
from the circuit board.
4. Keep wires away from high voltage or high temperature components.
5. This receiver must operate under AC 230 volts, 5O Hz. NEVER connect to a DC supply of any other voltage 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 spe-
cial 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.

2
SPECIFICATIONS
21Pin EURO-SCART

PIN SIGNAL DESCRIPTION MATCHING VALUE
1 Audio Output Right 0.5 Vrms, Impedance < 1k, (RF 54% Mod)
2 Audio Input Right 0.5Vrms, Impedance > 10k
3 Audio Output Left 0.5 Vrms, Impedance < 1k, (RF 54% Mod)
4 Audio Earth
5 Blue Earth
6 Audio Input Left 0.5Vrms, Impedance > 10k
7 Blue Input 0.7Vpp + 0.1V, Inpedance 75
8 Slow Switching TV : 0 to 2V, AV : 4.5 to 12V, Impedance > 10k
9 Green Earth
10 N.C
11 Green Input 0.7Vpp + 0.1V, Impedance 75
12 N.C
13 Red Earth
14 Blanking Earth
Red Input 0.7Vpp + 0.1V, Impedance 75
15
Chroma Input + 3dB for a luminance signal of 1 Vpp
16 Fast Switching 0 to 0.4V : Logic " , 1 to 3V : Logic " , Impedance 75
0" 1"
17 Video Out Earth
18 Video In Earth
19 Video Output 1 Vpp + 3dB, Impedance 75
20 Video Input 1 Vpp + 3dB, Impedance 75
21 Common Earth

3
SPECIFICATIONS

Channel table

FREQUENCY TABLE CP-185M

EUROP GB(IRE- EAST EUROP GB(IRE- EAST
CH FRANCE CH FRANCE
E CCIR LAND) OIRT E CCIR LAND) OIRT
C01 46.25 - 45.75 49.75 C40 623.25 623.25 623.25 623.25
C02 48.25 55.75 (L') 53.75 59.25 C41 631.25 631.25 631.25 631.25
C03 55.25 60.5 (L') 61.75 77.25 C42 639.25 639.25 639.25 639.25
C04 62.25 63.75 (L') 175.25 85.25 C43 647.25 647.25 647.25 647.25
C05 175.25 176.00 183.25 93.25 C44 655.25 655.25 655.25 655.25
C06 182.25 184.00 191.25 175.25 C45 663.25 663.25 663.25 663.25
C07 189.25 192.00 199.25 183.25 C46 671.25 671.25 671.25 671.25
C08 196.25 200.00 207.25 191.25 C47 679.25 679.25 679.25 679.25
C09 203.25 208.00 215.25 199.25 C48 687.25 687.25 687.25 687.25
C10 210.25 216.00 223.25 207.25 C49 695.25 695.25 695.25 695.25
C11 217.25 189.25 (LUX) 231.25 215.25 C50 703.25 703.25 703.25 703.25
C12 224.25 69.25 (L') 239.25 223.25 C51 711.25 711.25 711.25 711.25
C13 53.75 76.25 (L') 247.25 - C52 719.25 719.25 719.25 719.25
C14 - 83.25 (L') 49.75 - C53 727.25 727.25 727.25 727.25
C15 82.25 90.25 57.75 - C54 735.25 735.25 735.25 735.25
C16 - 97.25 65.75 - C55 743.25 743.25 743.25 743.25
C17 183.75 - 77.75 - C56 751.25 751.25 751.25 751.25
C18 192.25 - 85.75 - C57 759.25 759.25 759.25 759.25
C19 201.25 - - - C58 767.25 767.25 767.25 767.25
C20 - - - - C59 775.25 775.25 775.25 775.25
C21 471.25 471.25 471.25 471.25 C60 783.25 783.25 783.25 783.25
C22 479.25 479.25 479.25 479.25 C61 791.25 791.25 791.25 791.25
C23 487.25 487.25 487.25 487.25 C62 799.25 799.25 799.25 799.25
C24 495.25 495.25 495.25 495.25 C63 807.25 807.25 807.25 807.25
C25 503.25 503.25 503.25 503.25 C64 815.25 815.25 815.25 815.25
C26 511.25 511.25 511.25 511.25 C65 823.25 823.25 823.25 823.25
C27 519.25 519.25 519.25 519.25 C66 831.25 831.25 831.25 831.25
C28 527.25 527.25 527.25 527.25 C67 839.25 839.25 839.25 839.25
C29 535.25 535.25 535.25 535.25 C68 847.25 847.25 847.25 847.25
C30 543.25 543.25 543.25 543.25 C69 855.25 855.25 855.25 855.25
C31 551.25 551.25 551.25 551.25 C70 863.25 863.25 863.25 863.25
C32 559.25 559.25 559.25 559.25 C71 69.25 - - -
C33 567.25 567.25 567.25 567.25 C72 76.25 - - -
C34 575.25 575.25 575.25 575.25 C73 83.25 - - -
C35 583.25 583.25 583.25 583.25 C74 90.25 - - -
C36 591.25 591.25 591.25 591.25 C75 97.25 - - -
C37 599.25 599.25 599.25 599.25 C76 59.25 - - -
C38 607.25 607.25 607.25 607.25 C77 93.25 - - -
C39 615.25 615.25 615.25 615.25 S01 105.25 104.75 103.25 105.25

4
SPECIFICATIONS

EUROP GB(IRE- EAST EUROP GB(IRE- EAST
CH FRANCE CH FRANCE
E CCIR LAND) OIRT E CCIR LAND) OIRT
S02 112.25 116.75 111.25 112.25 S22 311.25 311.25 311.25 311.25
S03 119.25 128.75 119.25 119.25 S23 319.25 319.25 319.25 319.25
S04 126.25 140.75 127.25 126.25 S24 327.25 327.25 327.25 327.25
S05 133.25 152.75 135.25 133.25 S25 335.25 335.25 335.25 335.25
S06 140.25 164.75 143.25 140.25 S26 343.25 343.25 343.25 343.25
S07 147.25 176.75 151.25 147.25 S27 351.25 351.25 351.25 351.25
S08 154.25 188.75 159.25 154.25 S28 359.25 359.25 359.25 359.25
S09 161.25 200.75 167.25 161.25 S29 367.25 367.25 367.25 367.25
S10 168.25 212.75 - 168.25 S30 375.25 375.25 375.25 375.25
S11 231.25 224.75 - 231.25 S31 383.25 383.25 383.25 383.25
S12 238.25 236.75 - 238.25 S32 391.25 391.25 391.25 391.25
S13 245.25 248.75 255.25 245.25 S33 399.25 399.25 399.25 399.25
S14 252.25 260.75 263.25 252.25 S34 407.25 407.25 407.25 407.25
S15 259.25 272.75 271.25 259.25 S35 415.25 415.25 415.25 415.25
S16 266.25 284.75 279.25 266.25 S36 423.25 423.25 423.25 423.25
S17 273.25 296.75 287.25 273.25 S37 431.25 431.25 431.25 431.25
S18 280.25 136.00 295.25 280.25 S38 439.25 439.25 439.25 439.25
S19 287.25 160.00 303.25 287.25 S39 447.25 447.25 447.25 447.25
S20 294.25 - - 294.25 S40 455.25 455.25 455.25 455.25
S21 303.25 303.25 - 303.25 S41 463.25 463.25 463.25 463.25

5
CIRCUIT BLOCK DIAGRAM

6
ALIGNMENT INSTRUCTIONS
Microcontroller configuration : Service mode
To switch the TV set into service mode please see instruction below.

1 - Select pr. number 91
2 - Adjust sharpness to minimum and exit all menu.
3 - Quickly press the key sequence : RED - GREEN - menu

To exit SERVICE menu press menu key or Std By key.

In Service Mode press "OK"to stop the microcontroller i.e. the I2C bus is free and the set can be controlled by external equipment.
Press "OK"again to allow the microcontroller to control the set again

Microcontroller configuration :

Tuner Option

Option Tuner maker
DW DAEWOO / SAMSUNG
PH1 PHILIPS ( Video processor AGC )
PH2 PHILIPS (tuner internal AGC )

System Option

Option System
TF PAL - B/G
TK PAL/SECAM - B/G, D/K (set for Russia)
TU PAL - I/I
TA PAL/SECAM - B/G, SECAM - L/L'

TV set Alignment
1 - G2 alignment
- Set TV in NORMAL I mode
- TV in AV mode without video signal ? Black screen.
- TV preset with WP Red, WP Green and WP Blue equal to 32.
- TV preset with Black R, Black G equal to 8.
- Adjust screen volume ( on FBT ) such that the highest cathode cut-off voltage measured on CRT board, is Vcut-off