Daewoo CP-185N, CP-185NC, СР-185C Service Manual

Service Manual

Color Television

CHASSIS : CP-185N and CP-185C

Specification

S/M No. : TCP185C/NEF

Version Pal multi system

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

Sound system Mono

* 1 Speaker

Power consumption

Speaker 3W8Ohmo7.5W8Ohm

Teletext system Option

Aerial Input 75 Ohm unbalanced

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

Tuning system Ferquency synthesiser tuning system

Visual screen size 20':48cm

Channel indication On screen display

Program selection 100 Programmes

Auxiliary Outpup Terminal

Remote control R-40A01(With teletext)

14":49W / 20":60W / 21" 68W * 2Speaker 14":57W / 20":64W / 21":74W

14":34cm

21":51cm

RCA jack : Audio input and Vidio input ERUO SCART Jack : Audio/Video and R/G/B input. 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-40A10 (None teletext)

R-44C05(With teletext)

AAA Battery type AAA Battery type AA Battery type

DAEWOO ELECTRONICS CO., LTD

http://svc.dwe.co.kr

Sep. 2001

SAFETY INSTRUCTION 2 SPECIFICA TIONS 3

21 Pin EURO-SCART

CIRCUIT BLOCK DIAGRAM 4 ALIGNMENT INSTRUCTIONS 5

1. Service mode

2. Microcontroller configuration

3. TV SET Alignment

5~6

SCHEMA TIC DIAGRAM 7 EXPLODED VIEW 8~10 PRINTED CIRCUIT BOARD 11 SERVICE PARTS LIST 12~23

The different parts list

FUNCTIONAL DESCRIPTION 1~6 IC DESCRIPTION 7~20

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 < 1kΩ, (RF 54% Mod) 2 Audio Input Right 0.5Vrms, Impedance > 10kΩ 3 Audio Output Left 0.5 Vrms, Impedance < 1kΩ, (RF 54% Mod) 4 Audio Earth 5 Blue Earth 6 Audio Input Left 0.5Vrms, Impedance > 10kΩ 7 Blue Input 0.7Vpp + 0.1V, Inpedance 75Ω 8 Slow Switching TV : 0 to 2V, AV : 4.5 to 12V, Impedance > 10kΩ

9 Green Earth 10 N.C 11 Green Input 0.7Vpp + 0.1V, Impedance 75Ω 12 N.C 13 Red Earth 14 Blanking Earth 15 Red Input 0.7Vpp

0.1V, Impedance 75Ω

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 75Ω 17 Video Out Earth 18 Video In Earth 19 Video Output 1 Vpp 3dB, Impedance 75Ω 20 Video Input 1 Vpp 3dB, Impedance 75Ω 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

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

Microcontroller configuration :

Tuner Option

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 Vcutoff 5V

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

Option Tuner maker

DW DAEWOO / SAMSUNG PHI LIPS (tuner internal AGC )

PH2 PHILIPS ( Video processor AGC )

Screen size Vcut-off

14" 115V

20" & 21" 125V

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 68dBµV

2 for Daewoo tuner (63dBµV 1 for Philips tuner)

- 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

1. 14V3

EXPLODED VIEW

2. 20V3

EXPLODED VIEW

3. 21V3

EXPLODED VIEW

LOC PART CODE PART NAME DESCRIPTION REMARK

ZZ100 48B3740A10 TRANSMITTER REMOCON R-40A10 ZZ110 PTACPWD434 ACCESSORY AS DTA-20V1MZ 00100 4850Q00910 BATTERY R03/NN 00200 48586002E2 MANUAL INSTRUCTION ENGLISH,ARABIC M821 4858213800 BAG INSTRUCTION L.D.P.E T0.05X250X400 ZZ120 PTBCSHD435 COVER BACK AS DTA-21V1MZ M211 4852151601 COVER BACK HIPS BK M541 4855415800 SPEC PLATE 150ART P/E FILM (C/TV) M781 4857820300 CLOTH BLACK T0.5 L=150 ZZ130 PTPKCPD435 PACKING AS DTA-21V1MZ 10 6520010100 STAPLE PIN AUTO W65 M801 485805063B BOX CARTON DW-3A M811 4858186800 PAD EPS 21V1 M821 4858211800 BAG P.E L.D.P.E T0.03X1300X1100 ZZ131 48519A5310 CRT GROUND NET 2101S-1015-1P ZZ132 58G0000147 COIL DEGAUSSING DC-21SF ZZ140 PTCACAD435 CABINET AS DTA-21V1MZ M201A 4856013300 SCREW CRT FIXING 30X80 BK M201B 4856215402 WASHER RUBBER CR T2.0 M201C 4856013302 SCREW CRT FIXING 30X190 BK M211A 7172401412 SCREW TAPPTITE TT2 TRS 4X14 MFZN BK M211D 7172401412 SCREW TAPPTITE TT2 TRS 4X14 MFZN BK M492 4854939403 BUTTON POWER ABS BK M591 4855930900 DECO TERM PVC CL T0.2 SP01A 7178301011 SCREW TAPPTITE TT2 WAS 3X10 MFZN V901 4859625560 CRT A51EFK155X01 ZZ200 PTFMSJD435 MASK FRONT AS DTA-21V1MZ M191 4851932302 BUTTON CTRL 4939402+5536301 M201 4852067601 MASK FRONT HIPS BK M561 48556159SS MARK BRAND SILVER ETCHING DIA-CUTTIN ZZ210 PTSPPWA652 SPEAKER AS DTA-14C4TFF P601A 4850703S50 CONNECTOR YH025-03+35098+ULW=200 SP01 4858314010 SPEAKER SP-5070F01 3W 8 OHM ZZ290 PTMPMSD435 PCB MAIN MANUAL AS DTA-21V1MZ

10 2193102005 SOLDER BAR SN:PB=63:47 S63S-1320 30 2291050616 FLUX SOLDER JS-64T3

40 2291050301 FLUX SOLVENT IM-1000 C404 CMYH3C752J C MYLAR 1.6KV BUP 7500PF J C408 CMYE2D474J C MYLAR 200V PU 0.47MF J C801 CL1UC3104M C LINE ACROSS WORLD AC250V 0.1UF M R.47 C804 CEYN2W151P C ELECTRO 450V LHS 150MF (25X40)

ELECTRICAL PARTS LIST

CAUTION

is safety part, so it must be used the same part.

“ ” is a recommendable part for essential stock.

ELECTRICAL PARTS LIST

LOC PART CODE PART NAME DESCRIPTION REMARK

C808 CH1AFE222M C CERA AC 4KV 2200PF M KX DE1210 D707 DSML1216W- LED SML1216W D807 DRGP30J—- DIODE RGP30J F801 5FSGB4022L FUSE GLASS TUBE SEMKO TL 4A 250V MF51 G901 4SG0DX0001 SPARK GAP SSG-102-A1(1.0KV) G902 4SG0DX0001 SPARK GAP SSG-102-A1(1.0KV) G903 4SG0DX0001 SPARK GAP SSG-102-A1(1.0KV) G904 4SG0DX0001 SPARK GAP SSG-102-A1(1.0KV) I301 PTA2SW5405 HEAT SINK ASS`Y 1TDA8357J- + 7174301011 00001 1TDA8357J- IC VERTICAL TDA8357J 0000A 4857025405 HEAT SINK A1050P-H24 T=2 0000B 7174300811 SCREW TAPPTITE TT2 RND 3X8 MFZN I501 1DW3812EB1 IC MICOM DW9381/N1/2S-2B1 I601 1TDA7267A- IC AMP TDA7267A I702 1AT24C08PC IC AT24C08-10PC I703 1SRV21M—- IC PREAMP SRV-21M I801 PTA2SW7919 HEAT SINK ASS`Y 1MA8920—- + 7174301211 00001 1MA8920—- IC POWER MA8920 0000A 4857027919 HEAT SINK AL EX 0000B 7174301211 SCREW TAPPTITE TT2 RND 3X12 MFZN 0000C 4853938501 BRKT TR SBHG1-A T1.5 I802 1LTV817C— IC PHOTO COUPLER LTV-817C I803 1DP123—— IC ERROR AMP DP123 I805 1KA7805—- IC REGULATOR KA7805 I901 PTC3SW1100 HEAT SINK ASS`Y 1TDA6107Q- + 7174300811 00001 1TDA6107Q- IC VIDEO TDA6107Q 0000A 4857031100 HEAT SINK A1050P-H24 T2.0 0000B 7174300811 SCREW TAPPTITE TT2 RND 3X8 MFZN JPA01 4859200401 SOCKET RGB YRS21-R1 JPA02 4859109950 JACK PIN BOARD PH-JB-9710A L401 58H0000020 COIL H-LINEARITY L-76(76.5UH) LF801 5PLF20A1— FILTER LINE LF-20A1 M561 4853533600 HOLDER LED P.P BK P401 4859240120 CONN WAFER YFW500-06 P501 4850708N08 CONNECTOR BIC-08T-25T+C-20T+ULW=400 PWC1 4859908110 CORD POWER AS 1-L0+H03VVH2-F+HOU=2200 Q401 PTJ2SW7200 HEAT SINK ASS`Y TST1803DH- + 7174301011 00001 TST1803DH- TR ST1803DHI 0000A 4857027200 HEAT SINK AL T1.0 0000B 7174301011 SCREW TAPPTITE TT2 RND 3X10 MFZN R801 DDC7R0M290 POSISTOR ECPCD7R0M290 R802 RX07B339JP R CEMENT 7W 3.3 OHM J BEN 15MM 4P SCT1 4859303530 SOCKET CRT PCS629-03C SF01 5PK7252M— FILTER SAW K7252M SW801 5S40101146 SW POWER PUSH SS-160-7-B

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