Daewoo DTC-14D9T Bedienungsanleitung

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

CHASSIS :

Model:

Specification

S/M No. : TCP195LFEF0

Version Pal multi system

TV Standard PAL-SECAM B/G, D/K, H, I/I (NTSC : AV Only)

Sound system Mono

Power consumption * 2Speaker

14":57W / 20":66W / 21":73W

Speaker 7W 8 Ohm

Teletext system Option

Aerial Input 75 Ohm unbalanced

Channel coverage off-air channels, S-cable channels and hyperband

Tuning system Ferquency synthesiser tuning system

14":34cm

Visual screen size 20’:48cm

21":51cm

Channel indication On screen display

Program selection 200 Programmes

RCA jack : Audio input and Vidio input

ERUO SCART Jack : Audio/Video and R/G/B input.

Auxiliary Outpup Terminal Sloe and fast swtching, SVHsin

Audio - Video jack on front of cabinet in common

connection with EURO-SCART

Headphone jack on front of cabinet

R-48A02 (None teletext) AAA Battery type

Remote control R-48A01(With teletext) AAA Battery type

R-44C05(With teletext) AA Battery type

May. 2006

CP-195L

DTC-14D9T

DTC-20D9T

DTC-21D9T

DTC-2131TF

SAFETY INSTRUCTION 2

SPECIFICATIONS 3

21 Pin EURO-SCART 3

CIRCUIT BLOCK DIAGRAM 4

ALIGNMENT INSTRUCTIONS 5

1. Service mode 5

2. Microcontroller configuration 5

3. TV SET Alignment 5~6

SCHEMATIC DIAGRAM 7

PRINTED CIRCUIT BOARD 8

EXPLODED VIEW 9~12

SERVICE PARTS LIST 13~25

FUNCTIONAL DESCRIPTION 1~6

IC DESCRIPTION 7~44

TABLE OF CONTENTS

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

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.

SAFETY INSTRUCTION

WARNING : Only competent service personnel may carry out work involving the testing or repair of this equipment

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

15 Red Input 0.7Vpp 0.1V, Impedance 75‰

Chroma Input 3dB for a luminance signal of 1 Vpp

16 Fast Switching 0 to 0.4V : Logic :"0", 1 to 3V : Logic "1", Impedance 75‰

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

21Pin EURO-SCART

SPECIFICATIONS

CIRCUIT BLOCK DIAGRAM

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

4 - List of service manual item

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

In Service Mode press "OK" to 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

TV set Alignment

1 - G2 alignment

- Set TV in NORMAL I mode.

- Receive the RETMA PATTERN (or color bar).

- Press the SVC button in Service Remocon.

- Press the Screen button in Service Remocon.

- Turn round the screen volume of FBT until the horizontal line of screen disappear.

- Press the Screen button to exit Screen mode.

2 - White balance

- Select a dark picture and adjust Black G and Black R to the desired colour temperature.

- Select a bright picture and adjust WP Red, WP Green, WP Blue to the desired colour temperature.

ALIGNMENT INSTRUCTIONS

No Item

1 AGC

2 Black R

3 Black G

4 WR Red

5 WP Green

6 WP Blue

7 H Shift

8 V Slope

9 V Amp

10 S Correct

11 V Shift

12 Sub Bright

13 BRM

14 CH Lock

15 MAX Vol

16 AV Start

17 Key Lock

18 PSNS Mode

3 - Focus

- Adjust the Focus volume ( on FBT ) to have the best resolution on screen.

4 - Vertical geometry

- Adjust the Vertical Amplitude, Shift, S-Correction and Slope

to compensate for vertical distortion

5 - Horizontal picture centering

- Adjust H Shift to have the picture in the center of the screen.

7 - AGC

- Adjust the antenna signal level to 64dB V 2

- Set RF AGC to 0.

- Increase RF AGC level and stop when the level on pin 6 of I501 goes below 2.5 Vdc

ALIGNMENT INSTRUCTIONS

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-8-

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