Daewoo 2898ST Manual de usuario

Service Manual

66 Cm STEREO Colour Television

CHASSIS : CP-775

MODEL :2898ST

Specifications

CRT

28” : A66EAK071X11 (PHILIPS)

System TF : PAL - B/G for West Europe, NTSC-3.58 / 4.43 (Play back)

Main Voltage 230V AC, 50Hz

Power Consumption Stand-by mode : 10 Watts

Normal operating mode : 28” = 75 Watts

Sound output 5 + 5 Watts, 10 % THD at RF 60 % mod. (1 )

Speaker 12W 4 ohm x 2 EA

Antenna 75 ohm unbalanced input

Impedance

Tuning system VS( voltage synthesis ) tuning

Tuner 3303KHC (TF, TA, TK, TI Model)

BAND I : CH2 - CH4

BAND III : CH5 - CH12

CABLE BAND : S1’ - S3’ , S1 - S20

HYPER BAND : S21 - S41

BAND IV, V : CH21 - CH69

DT2-IV17D (TU Model )

BAND IV, V : CH21 - CH69

Number of 70 programs

program

Aux. Terminal 21 pin EURO-SCART jack ( AV input, TV output, RGB input )

21 pin EURO-SCART jack ( AV input, S-VHS input )

RCA type AV input jack

Headphone jack (3.5 mm )

Remote controller R-28B03 or R-35D05 with 2 “AA” type batteries

Teletext 8 pages memory TOP & FLOF

- West option :English, German/Dutch/Flemish, French, Italian,

Spanish/Portuguese, Swedish/Finnish/Danish, Czech/Slovak

- East option : Polish, Czech/Slovak, Rumanian, Hungarian, Servo-croat,

German/Dutch/Flemish, French, Italian

- Turkish option : Turkish, English, German/Dutch/Flemish, French,

Italian, Spanish/Portuguese, Swedish/Finnish/Danish

- Cyrillic option: Russian, Lettish/Lithuanian, Estonian, Ukranian,

Czech/Slovak, Servo-croat, English

OSD language -East,West,Turkish Version : English,French,German,Italian,Spanish

-Cyrillic Version : Russian, English, German

21 PIN EURO-SCART

PIN Signal Designation Matching Value

1 Audio Out(linked with 3) 0.5Vrms,lmp<1 (RF 60% MOD)

2 Audio In(linked with 6) 0.5Vrms,lmp>10

3 Audio Out(linked with 1) 0.5Vrms,lmp<1 (RF 60% MOD)

4 Audio Earth

5 Blue Earth

6 Audio in (linked with 2) 0.5Vrms,lmp>10

7 Blue in 0.7Vpp 3 ,lmp75

8 Slow(Function) Switching TV:0-2V,PERI:9.5-12V,lmp>10

9 Green Earth

10 NC

11 Green In 0.7Vpp 3 ,lmp75

12 NC

13 Red Earth

14 NC

15 Red In, C In 0.7Vpp 3 ,lmp75

16 Rapid(Blanking) switching Logic 0:0-0.4V,Logic 1:1-3V,Imp 75

17 Video Earth

18 Rapid Blanking Earth

19 Video Out 1Vpp 3 ,lmp75

20 Video In, Y In 1Vpp 3 ,lmp75

21 Common Earth

20 18 16 14 12 10 8 6 4 2

21 19 17 15 13 11 9 7 5 3 1

Safety Instruction

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

this equipment.

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 26 at max beam

current. The high voltage must not, under any

circumstances, exceed 29.5 (25"), 30 (28").

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.

1. Potentials of high voltage are present when this

receiver is operating. Operation of the receiver

outside the cabinet or with the back board

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 10mm away from circuit board.

4. Keep wires away from high voltage or high

temperature components.

5. This receiver must operate under AC230 volts,

50Hz. NEVER connect to DC supply or any other

power or frequency.

Many electrical and mechanical parts in this 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 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

substitute replacement parts which do not have the

same safety characteristics as specified in the parts

list may create X-RAY Radiation.

X-RAY RADIATION PRECAUTION

PRODUCT SAFETY NOTICE

SAFETY PRECAUTION

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