Daewoo CP-371 Service Manual

S/G No. : CP371P-010G1

✔ Caution:In this Service 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(http://svc.dwe.co.kr)

Service Guide

Colour Television

CHASSIS : CP-371 Model :

DTU-14/16/20/21 D3VG DTU-14/20/21 D4VG DTU-14/20/21 D3TM DTU-14/20/21 D4TM

14/16/20/21 D3

If you need further information ( IC, Circuit descriptions or troubleshooting . . .) about this model, Please visit our web site.( http://svc.dwe.co.kr)

with Game without Text with Text without Game

14/20/21 D4

Specifications

TV Standard Mains Voltage Power Voltage

Sound output

Speaker

Memory channel

PAL/SECAM-B/G, D/K, I, H, NTSC-3.58/4.43, NTSC-5.5

100 ~ 250V AC, 50/60Hz 14" : 73W 20" : 78W

16" : 75W 21" : 86W

- . 2 Speaker (at any MOD. 10% THD ) : 5W + 5W (TWITTER 2.5W + 2.5W)

- . 2 Speaker : 7.5W 4 ohm

100 channels

Reception channel Unit

Remote control Function

VHF - L : CH2 - CH4 VHF - H : CH5 - CH12 Cable Band : CHS1' - CHS3', CHS1 - CHS20 Hyper Band : CHS21 - CHS40 UHF : CH21 - CH69

VG : R-28B04, TM : R-28B03

-. CHILD Lock (CH Lock)

-. 16 : 9 MODE

-. ZOOM MODE

-. Blue Back (ON/OFF)

-. Local Key Menu Control

-. Arrow puzzle Game

-. Monitor out

-. Simple SCART

-. Twitter Speaker

-. CHILD Lock (Security code Lock)

-. OSD MESH

-. 16 : 9 MODE

-. ZOOM MODE

-. Blue Back (ON/OFF)

-. Local Key Control Menu Control

-. Monitor out

-. Simple SCART

-. Twitter Speaker

-. TELETEXT : 8 PAGE TELETEXT

TOP/FLOF MODE

DAEWOO ELECTRONICS CO., LTD

http : //svc.dwe.co.kr

JAN. 2000

Important Service Notes

1. X-ray Radiation Precaution

1) Excessive high voltage can produce potentially hazardous X-RAY RADIATION. To avoid such hazards, the high voltage must not be above the specified limit. The nominal value of the high voltage of this receiver is

25.5kv(20”) & 23.5kv(14”)at zero beam current (minimum brightness) under a 120V AC power source. The high voltage must not, under any circumstances, exceed 28kv(20”) & 26kv(14”). Each time a receiver requires servicing, the high voltage should be checked following the HIGH VOLTAGE CHECK procedure on page 10 of this manual. It is recommended as a parts of the service record. It is important to use an accurate and reliable high voltage meter.

2) This receiver is equipped with X-RADIATION PROTECTION circuit which prevents the receiver from producing an excessively high voltage even if the B+ voltage increases abnormally. Each time the receiver is serviced, XRADIATION PROTECTION circuit must be checked to determine that the circuit is properly functioning, following the X-RADIATION PROTECTION CIRCUIT CHECK procedure on page 6 of this manual.

3) 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.

4) Some parts in this receiver have special safety-related characteristics for XRAY RADIATION protection. For continued safety, parts replacement should be undertaken only after referring to the PRODUCT SAFETY NOTICE below.

2. Safety Precaution

WARNING: Service should not be attempted by anyone unfamiliar with the necessary precaution on this receiver. The following are the necessary precaution to be observed before servicing.

1) Since the chassis of this receiver has hazardous potential to ground whenever the receiver is plugged in (floating chassis), an isolation transformer must be used during servicing to avoid shock hazard.

2) Always discharge the picture tube anode to the CRT conductive coating the picture tube. The picture tube is highly evacuated and if broken, glass fragments will be violently expelled.

3) When placing chassis in the cabinet, always be certain that all the protective devices are put back in place, such as; nonmetallic control knobs, insulating covers, shields, isolation resistor-capacitor network, etc.

4) Before returning the set to the customer, always perform an AC leakage current check on the exposed metallic parts of the cabinet, such as antennas, terminals, screw-heads, metal overlays, control shafts etc. to be sure the set is safe to operate without danger of electrical shock. Plug the AC line cord directly into a 120V AC outlet (do not use a line isolation transformer during this check). Use an AC voltmeter having 5000 ohms per volt or more sensitivi-ty in the following manner.

Connect at 1500 ohm 10 watt resistor, paralleled by a 0.15 mfd. AC type capacitor, between a known good earth ground (water pipe, conduit etc.) and the exposed metallic parts, one at a time. Measure the AC voltage across the combination of 1500 ohm resistor and 0.15 mfd capacitor. Voltage measured must not exceed 0.3 volts RMS. This corresponds to 0.2 millliamp. AC. Any value exceeding the limit constitutes a potential shock hazard and must be corrected immediately.

A.C. VOLT METER

0.15 uF

Good earth ground such as d water pipe, conduit, etc.

1500 ohm

10watt

Place this probe on each exposed Metal part.

3. Product Safety Notice

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 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 shading on the schematic diagram and 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 or other hazards.

4. Service Notes

1) When replacing parts or circuit boards, clamp or bend the lead wires to terminals before soldering.

2) When replacing a high wattage resistor (metal oxide film resistor) in the circuit board, keep the resistor min 1/2 inch away form circuit board.

3) Keep wires away from high voltage or high temperature components.

DAEWOO ELECTRONICS CO., LTD.

C.P.OBOX8003 SEOUL, KOREA Tel : 82-2-360-8179 Fax : 82-2-360-8184 E-mail : G7F00E@dwe.web.co.kr Printed on Jan. 2000

If EEPROM(I702) has been changed ;

- Option data has to be changed and

- all alignment function has to be readjusted.

* The initial state of adjustment are as follows ;

- V-Center, V-Slope V-Size, H-Center, R, G, B, AFT = Center ( 30/64 - 33/64 )

- S-Correction = 00/64

- AGC = 15 ~ 60/64

* Service Remocon ( R - 30SVC )

POWER

STOP

AFT

AFT-L'

V-CENTER V-SIZE V-SLOPE

R G B

EFFECT TREBLE

MODE

BASS

WOOPER

-- -- -

++ +

BAL

MAX

CONT BRI COL

MIN MIN

AUTO

TEST

+++

S-COR.

H-CENTER

AGC

- +

VOLVOL

MAX

MIN

SUB BRI.

R-30SVC

TTX

* Methode of adjustment with user REMOCON

- This methode is available of only VG MODEL (without TELETEXT)

1) Press sequentially “DEL” “MOVE” “ ? ” button of user REMOCON, then adjustment table will be displayed on the screen.

2) Select the adjustment part with PR UP/DOWN button.

3) Adjust it with VOL UP/DOWN button.

4) Press “OK” button or power off to exit this mode.

Alignment Instructions

1. AGC

1) Receive the PAL color bar signal of 60dBuV.

2) Connect a OSCILLOSCOPE PROBE to P102 ( TUNER AGC PORT ).

3) Adjust AGC voltage to maximum voltage with AGC UP KEY of SVC REMOCONE.

4) Adjust AGC VOLTAGE with AGC DOWN KEY until the voltage drop is over 2V point from maximum voltage.

2. SCREEN

1) Receive the color bar pattern and heat run over 15 minutes.

2) On the normal model adjust the screen volume that the horizontal line appears on the screen after pushing the AFT-L key on the SVC

remote control unit.

3) Adjust the screen volume that the horizontal lines reach the cut-off point.

3. WHITE BALANCE

1) Set the TV normal 1 mode

2) Adjust color control to MIN. or set the color burst of white balance pattern generator on ( In case of Nitsuki, set CHROMA SW on )

3) Set the R,G,B level to center with R,G,B UP/DOWN KEY.

4) Adjust the R,G,B UP/DOWN KEY of the color which appears abnormally on the screen to obtain WHITE BALANCE.

*. In factory, adjust white balance with G,B UP/DOWN KEY on the state of fixing R to “37” in the high beam.( X=288, Y=301 )

5) Adjust WHITE BALANCE only in the high beam.

4. FOCUS

1) Apply a RETMA PATTERN signal.

2) Adjust the FOCUS VOLUME on FBT to obtain optimal resolution.

5. GEOMETRY

5-1. VERTICAL CENTER

1) Set the TV to NORMAL I mode.

2) Pressing the V-SIZE UP/DOWN KEY, the lower half of the screen is blanked.

3) Adjust the border line of blanked picture coincident with the mechanical center marks

of the CRT using the V-CENTER UP/DOWN KEY.

5-3. VERTICAL SLOPE * The VERTICAL SIZE adjustment has to be done in advance.

1) Apply a RETMA PATTERN signal.

2) Adjust the lower part of the picture with the V-SLOPE UP/DOWN keys.

5-4. VERTICAL S-CORRECTION

1) Apply a CROSSHATCH PATTERN signal.

2) Adjust the S-COR UP/DOWN KEY to obtain the same distance between horizontal lines.

5-5. HORIZONTAL CENTER

1) Apply a RETMA PATTERN signal.

2) Adjust picture centering with H-CENTER LEFT/RIGHT keys.

***. SETTING OF NORMAL I ***

-. VG-MODEL : VG MODEL can be controlled COLOR , BRIGHTNESS of NORMAL 1.

1) Press OPTION BUTTON in SVC REMOCON.

2) In option select COLOR with PR UP/DOWN KEY and control color of NORMAL 1 with VOL MAX/MIN BUTTON

3) BRIGHTNESS of NORMAL 1 can be controlled with SUB BRI. +/- BUTTON of SVC REMOCON.

-. TM-MODEL : TM MODEL can be controlled BRIGHTNESS,CONTRAST,COLOR of NORMAL 1 in SVC mode In SVC mode ,

1) BRIGHTNESS of NORMAL 1 can be controlled with TREBLE MIN/MAX BUTTON of SVC REMOCON.

2) CONTRAST of NORMAL 1 can be controlled with BASS MIN/MAX BUTTO of SVC REMOCON.

3) COLOR of NORMAL 1 can be controlled with BAL MIN/MAX BUTTON of SVC REMOCON

5-2. VERTICAL SIZE

* The VERTICAL CENTER adjustment has to be done in advance.

1) Apply a RETMA PATTERN signal.

2) Set the TV to NORMAL I mode.

3) Adjust the upper part of the picture with the V-SIZE UP/DOWN keys.

Parts List

✔ Caution:In this Service 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(http://svc.dwe.co.kr)

Key Parts List (DTU-14D3TM)

is a recommendable spare part.

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

LOC PART CODE PART NAME DESCRIPTION REMARK

ZZ100 48B3228B04 ZZ110 PTACPWA596 ACCESSORY AS DTU-14D3TM ZZ120 PTBCSHA596 COVER BACK AS DTU-14D3TM ZZ130 PTPKCPA596 PACKING AS DTU-14D3TM

4858054300 BOX DW-3 175X127X175

4858187900 PAD EPS 14D3 ZZ131 58G0000084 COIL DEGAUSSING DC-1450 ZZ132 48519A4710 CRT GROUND NET 1401S-1015-1P ZZ140 PTCACAA618 CABINET AS DTU-14D3VG

CRT1 PTRTPWA001 CRT AS PAL 14' ITC CRT AS

V01 58D1000046 COIL DY ODY-M1401

V901 48A96414P1 CRT BARE A34JLL90X

M191 4851936901 BUTTON CTRL 4940301+5537001 M201A 4856013300 SCREW CRT FIXING 30X80 BK M201B 4856215402 WASHER RUBBER CR T2.0 M201C 4856013301 SCREW CRT FIXING 30X140 YL M211A 7172401412 SCREW TAPPTITE TT2 TRS 4X14 MFZN BK

M481 4854854201 BUTTON POWER ABS BK M481A 4856716000 SPRING SWPA PIE0.5

M561 4855613600 MARK BRAND COPPER T0.4

M681 4856812001 TIE CABLE NYLON66 DA100 SP01A 7178301011 SCREW TAPPTITE TT2 WAS 3X10 MFZN SP02A 7178301011 SCREW TAPPTITE TT2 WAS 3X10 MFZN

ZZ200 PTFMSJA596 MASK FRONT AS DTU-14D3TM

ZZ202 PTSPPWA596 SPEAKER AS DTU-14D3TM PA601 4850703S50 CONNECTOR YH025-03+35098+ULW=200 PA602 4850703S54 CONNECTOR YH025-03+35098+ULW=600

SP01 48A8305400 SPEAKER SYSTEM SS-5090F01 7.5W 4 OHM SP02 48A8305400 SPEAKER SYSTEM SS-5090F01 7.5W 4 OHM

ZZ290 PTMPMSA618 PCB MAIN MANUAL AS DTU-14D3VG

C401 CBZR1C472M C CERA 16V Y5R 4700PF M (AXIAL) C402 CEXF1H109V C ELECTRO 50V RSS 1MF (5X11) TP C403 CBZR1C222M C CERA 16V Y5R 2200PF M (AXIAL) C405 CCYB2H103K C CERA 500V B 0.01MF K C406 CCXB2H102K C CERA 500V B 1000PF K (TAPPING) C410 CMYH3C722J C MYLAR 1.6KV BUP 7200PF J C411 CMYE2D304J C MYLAR 200V PU 0.3MF J C412 CEXF2C339V C ELECTRO 160V RSS 3.3MF (8X16) TP C414 CCXB2H471K C CERA 500V B 470PF K (TAPPING) C415 CMXM2A104J C MYLAR 100V 0.1MF J (TP) C416 CCXB3A102K C CERA 1KV B 1000PF K (TAPPING) C417 CEXF2E330V C ELECTRO 250V RSS 33MF (13X25) TP C418 CMXM2A223J C MYLAR 100V 0.022MF J TP C419 CEXF1E101V C ELECTRO 25V RSS 100MF (6.3X11) TP C420 CXSL2H100D C CERA 500V SL 10PF D (TAPPING) C423 CCXB2H102K C CERA 500V B 1000PF K (TAPPING) C428 CEXF2C470C C ELECTRO 160V RUS 47MF (13X25) TP C801 CL1UC3104M C LINE ACROSS WORLD AC 250V 0.1UF M R.47 C802 CCXF3A472Z C CERA 1KV F 4700PF Z (T) C803 CCXF3A472Z C CERA 1KV F 4700PF Z (T) C804 CCXF3A472Z C CERA 1KV F 4700PF Z (T) C805 CCXF3A472Z C CERA 1KV F 4700PF Z (T) C806 CEYA2G221G C ELECTRO 400V LSS 220MF (30X40) C808 CEXD1H229Q C ELECTRO 50V RT 2.2MF (6.3X11) TP C809 CEXF1E331V C ELECTRO 25V RSS 330MF (10X12.5)TP C810 CEXF1E221V C ELECTRO 25V RSS 220MF (8X11.5) TP C812 CCXB3A102K C CERA 1KV B 1000PF K (TAPPING) C814 CCYR3D102K C CERA 2KV R 1000PF K 125 DE1207 C817 CCXB3A102K C CERA 1KV B 1000PF K (TAPPING) C818 CEXF2C101V C ELECTRO 160V RSS 100MF (16X25) TP C819 CEXF2C101C C ELECTRO 160V RUS 100MF (16X25) TP C820 CCXB2H471K C CERA 500V B 470PF K (TAPPING) C821 CEXF1V102V C ELECTRO 35V RSS 1000MF (13X25) TP C822 CCXB2H471K C CERA 500V B 470PF K (TAPPING) C823 CEXF1E222C C ELECTRO 25V RUS 2200MF (16X25) TP C824 CEXF1E101V C ELECTRO 25V RSS 100MF (6.3X11) TP C825 CCZF1H103Z C CERA 50V F 0.01MF Z C826 CEXF1E470V C ELECTRO 25V RSS 47MF (5X11) TP C827 CCZF1H103Z C CERA 50V F 0.01MF Z C829 CCZF1H103Z C CERA 50V F 0.01MF Z

TRANSMITTER REMOCON

R-28B04

® ®

LOC PART CODE PART NAME DESCRIPTION REMARK

C830 CEXF1C331V C ELECTRO 16V RSS 330MF (8X11.5) TP C831 CBZF1H104Z C CERA SEMI 50V F 0.1MF Z C832 CH1AFE222M C CERA AC 4KV 2200PF M KX DE1210 C902 CXCH1H100D C CERA 50V CH 10PF D (TAPPING) C904 CMXL2E104K C MYLAR 250V MEU 0.1MF K

C911 CCYB3D472K C CERA 2KV B 4700PF K CA01 CEXF1H109V C ELECTRO 50V RSS 1MF (5X11) TP CA02 CCZB1H561K C CERA 50V B 560PF K CA03 CBZF1H104Z C CERA SEMI 50V F 0.1MF Z CA04 CEXD1H479F C ELECTRO 50V RND 4.7MF (6.3X11) TP CA05 CEXF1H100V C ELECTRO 50V RSS 10MF (5X11) TP CA06 CEXF1H229V C ELECTRO 50V RSS 2.2MF (5X11) TP

D102 D1N4148--- DIODE 1N4148 (TAPPING)

D103 D1SS85TA-- DIODE 1SS85TA

D301 DUZ5R1B--- DIODE ZENER UZ-5.1B UNIZON

D401 D1N4936GP- DIODE 1N4936GP (TAPPING)

D406 D1N4148--- DIODE 1N4148 (TAPPING)

D409 D1N4936GP- DIODE 1N4936GP (TAPPING)

D413 DMTZJ30D-- DIODE ZENER MTZJ 30D (TAPPING)

D414 DMTZJ30D-- DIODE ZENER MTZJ 30D (TAPPING)

D601 D1SS85TA-- DIODE 1SS85TA

D705 DUZ6R2BM-- DIODE ZENER UZ-6.2BM 6.2V

D706 DKLR114L-- LED KLR114L

D708 DUZ6R2BM-- DIODE ZENER UZ-6.2BM 6.2V

D715 DUZ5R1B--- DIODE ZENER UZ-5.1B UNIZON

D730 D1N4148--- DIODE 1N4148 (TAPPING)

D801 DKBJ408G-- DIODE BRIDGE KBJ408G

D807 DRGP15J--- DIODE RGP15J

D812 DRGP30J--- DIODE RGP30J

D901 D1N4936GP- DIODE 1N4936GP (TAPPING)

D904 DMTZJ12C-- DIODE ZENER MTZJ 12C (TAPPING) DA01 DUZ6R2BM-- DIODE ZENER UZ-6.2BM 6.2V DA06 DUZ9R1BM-- DIODE ZENER UZ-9.1BM 9.1V DA07 DUZ6R2BM-- DIODE ZENER UZ-6.2BM 6.2V

F801 5FSGB4022L FUSE GLASS TUBE SEMKO TL 4A 250V MF51

F801A 4857415001 CLIP FUSE PFC5000-0702

G901 4SG0D00103 SPARK GAP S-23 900V-1.5KV

I301 PTA2SW7717 HEAT SINK ASS`Y 1TDA8356-- + 7174301011

I301 1TDA8356-- IC VERTICAL TDA8356 I301A 4857027717 HEAT SINK AL EX I301B 7174301011 SCREW TAPPTITE TT2 RND 3X10 MFZN

I501 1TDA8842N2 IC VIDEO TDA8842/N2

I601 PTB2SW8002 HEAT SINK ASS`Y 1TDA1519B- + 7174300811

I601 1TDA1519B- IC AMP TDA1519B I601A 4857028002 HEAT SINK AL EX I601B 7174300811 SCREW TAPPTITE TT2 RND 3X8 MFZN

I602 1TC4053BP- IC TC4053BP

I701 1DW244AB1- IC MICOM DW90244-AB1

I702 1AT24C08PC IC AT24C08-10PC

I703 1UPC574J-- IC UPC574J

I704 1TS0P1238W IC PREAMP TS0P1238WI1

I801 PTA2SW7908 HEAT SINK ASS`Y 1STRS5707- + 7174301211

I801 1STRS5707- IC POWER STR-S5707 I801A 4857027908 HEAT SINK AL EX I801B 7174301211 SCREW TAPPTITE TT2 RND 3X12 MFZN

I802 PTD2SW5401 HEAT SINK ASS`Y 1TDA8138-- + 7174300811

I802 1TDA8138-- IC REGULATOR TDA8138 I802A 4857025401 HEAT SINK A1050P-H24 T2 I802B 7174300811 SCREW TAPPTITE TT2 RND 3X8 MFZN

I803 1KA7808--- IC REGULATOR KA7808

I804 1LTV817C-- IC PHOTO COUPLER LTV-817C

I901 PTC3SW1100 HEAT SINK ASS`Y 1TDA6107Q- + 7174301011

I901 1TDA6107Q- IC VIDEO TDA6107Q I901A 4857031100 HEAT SINK A1050P-H24 T2.0 I901B 7174301011 SCREW TAPPTITE TT2 RND 3X10 MFZN

JV01 4859200401 SOCKET RGB YRS21-R1 JV02 4859109950 JACK PIN BOARD PH-JB-9710A JV03 4859109750 JACK PIN BOARD YSC04P-06E L101 5CPZ100K04 COIL PEAKING 10UH 10.5MM K (LAL04TB) L102 58C9780027 COIL CHOKE TRF-1201B (0.97 UH)

® ®

LOC PART CODE PART NAME DESCRIPTION REMARK

L105 5CPZ100K02 COIL PEAKING 10UH K (AXIAL 3.5MM) L401 5CPZ109M02 COIL PEAKING 1UH M (AXIAL 3.5MM) L405 58H0000016 COIL H-LINEARITY L-102 (102UH) L501 5CPZ100K02 COIL PEAKING 10UH K (AXIAL 3.5MM) L603 58C0000096 COIL CHOKE 610G0233(470K) L604 5CPZ829K02 COIL PEAKING 8.2UH K (AXIAL 3.5MM) L701 5CPZ689K02 COIL PEAKING 6.8UH K (AXIAL 3.5MM) L801 5PLF20A1-- FILTER LINE LF-20A1

L802 5MC0000100 COIL BEAD HC-3550

L803 58C0000096 COIL CHOKE 610G0233(470K) M353 4853530901 HOLDER LED P.P M681 4856812001 TIE CABLE NYLON66 DA100 M791 4857913304 RUBBER CUSHION FR RUBBER SPONGE P102 485923162S CONN WAFER YW025-03 (STICK) P401 4859240020 CONN WAFER YFW500-05 P501 485923192S CONN WAFER YW025-06 (STICK) P502 485923172S CONN WAFER YW025-04 (STICK) P601 485923162S CONN WAFER YW025-03 (STICK) P602 485923162S CONN WAFER YW025-03 (STICK) P801 4857417500 TERM PIN DA-IB0214 (D2.3/DY PIN)

PA501 4850706S12 CONNECTOR YH025-06+YST025+ULW=300 PA502 4850704S03 CONNECTOR YH025-04+YST025+ULW=300

PW000 4859901111 CORD POWER KKP-419C KLCE-2F (2.1ME)

PWC1 PTWASW2910 CORD POWER ASS`Y 4859901111+ HOUSING

Q101 TKTC3197-- TR KTC3197 (TP) Q102 TKTC3198Y- TR KTC3198Y Q401 TKTC3207-- TR KTC3207 (TP) Q402 PTA2SW7200 HEAT SINK ASS`Y T2SD2499-- + 7174301011

Q402 T2SD2499-- TR 2SD2499

Q402A 4857027200 HEAT SINK AL T1.0 Q402B 7174301011 SCREW TAPPTITE TT2 RND 3X10 MFZN Q402C 4856215201 WASHER SPCC

Q504 TKTA1266Y- TR KTA1266Y (TP) Q505 TKTC3198Y- TR KTC3198Y Q702 TKTC3202Y- TR KTC3202Y (TP) R303 RS01Z153J- R M-OXIDE FILM 1W 15K OHM J (TAPPING) R304 RD-4Z189J- R CARBON FILM 1/4 1.8 OHM J R305 RD-4Z189J- R CARBON FILM 1/4 1.8 OHM J R307 RS02Z221J- R M-OXIDE FILM 2W 220 OHM J R310 RD-4Z472J- R CARBON FILM 1/4 4.7K OHM J R406 RD-4Z562J- R CARBON FILM 1/4 5.6K OHM J R407 RD-4Z682J- R CARBON FILM 1/4 6.8K OHM J R408 RS02Z561JS R M-OXIDE FILM 2W 560 OHM J SMALL R409 RS01Z103J- R M-OXIDE FILM 1W 10K OHM J (TAPPING) R410 RD-AZ435J- R CARBON FILM 1/6 4.3M OHM J R411 RS01Z129J- R M-OXIDE FILM 1W 1.2 OHM J (TAPPING) R412 RS01Z479J- R M-OXIDE FILM 1W 4.7 OHM J (TAPPING) R413 RS01Z479J- R M-OXIDE FILM 1W 4.7 OHM J (TAPPING) R414 RD-2Z273J- R CARBON FILM 1/2 27K OHM J R415 RS01Z159J- R M-OXIDE FILM 1W 1.5 OHM J (TAPPING) R417 RD-4Z102J- R CARBON FILM 1/4 1K OHM J R423 RS02Z682JS R M-OXIDE FILM 2W 6.8K OHM J SMALL R424 RS02Z682JS R M-OXIDE FILM 2W 6.8K OHM J SMALL R425 RS02Z202JS R M-OXIDE FILM 2W 2K OHM J SMALL R720 RS02Z562JS R M-OXIDE FILM 2W 5.6K OHM J SMALL R759 RS02Z562JS R M-OXIDE FILM 2W 5.6K OHM J SMALL R801 DEC140M290 POSISTOR ECPCC140M290 R803 RX10B339JN R CEMENT 10W 3.3 OHM J BENCH 4P R805 RS02Z363J- R M-OXIDE FILM 2W 36K OHM J (TAPPING) R807 RD-4Z270J- R CARBON FILM 1/4 27 OHM J R808 RD-4Z182J- R CARBON FILM 1/4 1.8K OHM J R810 RD-4Z104J- R CARBON FILM 1/4 100K OHM J R811 RS01Z240J- R M-OXIDE FILM 1W 24 OHM J (TAPPING) R812 RF02Z338K- R FUSIBLE 2W 0.33 OHM K (TAPPING) R813 RD-4Z102J- R CARBON FILM 1/4 1K OHM J R814 RS02Z563J- R M-OXIDE FILM 2W 56K OHM J (TAPPING) R824 RS02Z430JS R M-OXIDE FILM 2W 43 OHM J SMALL R825 RS02Z330J- R M-OXIDE FILM 2W 33 OHM J (TAPPING) R826 RD-AZ102J- R CARBON FILM 1/6 1K OHM J R829 RD-4Z472J- R CARBON FILM 1/4 4.7K OHM J R830 RD-4Z103J- R CARBON FILM 1/4 10K OHM J R831 RD-AZ153J- R CARBON FILM 1/6 15K OHM J R832 RD-AZ104J- R CARBON FILM 1/6 100K OHM J R833 RD-4Z101J- R CARBON FILM 1/4 100 OHM J R834 RD-4Z362J- R CARBON FILM 1/4 3.6K OHM J R835 RC-2Z565J- R CARBON COMP 1/2 5.6M OHM J

LOC PART CODE PART NAME DESCRIPTION REMARK

R836 85801065GY WIRE COPPER AWG22 1/0.65 TIN COATING R910 RC-2Z152K- R CARBON COMP 1/2 1.5K OHM K R911 RC-2Z152K- R CARBON COMP 1/2 1.5K OHM K R912 RC-2Z152K- R CARBON COMP 1/2 1.5K OHM K RA01 RD-AZ750J- R CARBON FILM 1/6 75 OHM J RA03 CMXM2A104J C MYLAR 100V 0.1MF J (TP) RA09 RD-AZ470J- R CARBON FILM 1/6 47 OHM J SCT1 4859303430 SOCKET CRT PCS633A

SF101 5PK6259K-- FILTER SAW K6259K SW01 5S50101090 SW TACT SKHV17910A SW02 5S50101090 SW TACT SKHV17910A

SW801 5S40101143 SW POWER PUSH PS3-22SP (P.C.B)

T401 50D0000022 TRANS DRIVE HD-15D T402 50H0000177 FBT HST1142.5057

T801 50M4242A9- TRANS SMPS TSM-4242A9 TU01 4859717930 TUNER VARACTOR DT2-BV12D

X501 5XEX4R436C CRYSTAL QUARTZ HC-49U 4.433619M 20PP TA X502 5XEX3R579C CRYSTAL QUARTZ HC-49U 3.579545M (TP) X701 5XE6R0000C CRYSTAL QUARTZ HC-49/U 6.0000 MHZ 20PPM Z501 5PXPS45MB- FILTER CERA TPS-4.5MB TRAP (TAPPING) Z503 5PXLP4557- FILTER CERA SLP-4557 (TP) Z601 5PXFSH5R5M FILTER CERA SFSH5.5MCB-TF21 Z602 5PXFSH6R5M FILTER CERA SFSH6.5MCB-TF21 Z603 5PXFSH4R5M FILTER CERA SFSH4.5MCB-TF21 (TP) Z604 5PXFSH6R0M FILTER CERA SFSH6.0MCB-TF21 (TP) Z801 DSVC471D14 VARISTOR SVC471D14A

DIFFERENCE PARTS LIST OF TM & VG MODEL

loc.

ZZ100 48B3228B03 REMOTE CONTROLLER R-28B03 48B3228B04 REMOTE CONTROLLER R-28B04

I701 1DW5457*** IC MICOM DW5457-*** 1DW244***- IC MICOM DW90244-*** u-com difference C513 CBZF1H104Z C CERA SEMI 50V F 0.1uF Z C715 CMXB1H333J C MYLAR 50V EU 0.033uF J C716 CMXB1H333J C MYLAR 50V EU 0.033uF J C717 CBZF1H103Z C CERA 50V F 0.01uF Z C718 CEXF1E101V C ELECTRO 25V RSS 100uF C719 CEXF1H109V C ELECTRO 50V RSS 1uF J R511 RD-AZ242J- R CARBON FILM 1/6 2.4k J R516 RD-AZ105J- R CARBON FILM 1/6 1M J R517 RD-AZ102J- R CARBON FILM 1/6 1k J R518 RD-AZ103J- R CARBON FILM 1/6 10 J R519 RD-AZ470J- R CARBON FILM 1/6 47 J R722 RD-AZ272J- R CARBON FILM 1/6 2.7k J R723 RD-AZ682J- R CARBON FILM 1/6 6.8k R724 RD-AZ100J- R CARBON FILM 1/6 10 R725 RD-AZ273J- R CARBON FILM 1/6 27k J Q503 TKTC3198Y- TR KTC3198Y C722 C723 CZSL1H750J C CERA 50V SL75pF J L701 CPZ689K02 COIL peaking 6.8uH K D730 D1N4148--- DIODE 1N4148 R630 RD-AZ101J- R CARBON FILM 1/6 100 J R631 RD-AZ513J- R CARBON FILM 1/6 51k J R738 R739 R740 R741 RD-AZ102J- R CARBON FILM 1/6 1k J 85801065GY WIRE COPPER AWG22 1/0.65 R765 RD-AZ121J- R CARBON FILM 1/6 120 J R766 RD-AZ121J- R CARBON FILM 1/6 120 J R767 RD-AZ121J- R CARBON FILM 1/6 120 J D701 D702 D703 C542 C543 C544 C703 C704

S/N part name specitication

85801065GY WIRE COPPER AWG22 1/0.65 RD-AZ101J- R CARBON FILM 1/6 100 J

deletion

CMXM2A104J C MYLAR

CZCH1H220J C CERA 50V CH 22pF J CZSL1H270J C CERA 50V SL 27pF J

TM model VG model

S/N

CZSL1H121J C CERA 50V SL 120pF J

deletion

D1N4148--- DIODE 1N4148

100V 0.1uF J

part name specitication

deletion

REMARK

components for

teletext operation

u-com difference

game sound

OSD OUT method difference

timer acuracy difference

INCH DIFFERENCE PARTS LIST OF CP-371 CHASSIS

LOC PART NAME 14" (CPT CRT) 16" (OHPT CRT) 20" (OEC CRT) 21"( PHILIPS CRT) REMARK

C410 C MYLAR 1.6kV 7200pF 1.6kV 8200pF 1.6kV 7200pF 1.6kV 7200pF retrace capacitor C411 C MYLAR 200V PU 0.3MF J 200V PU 0.3MF J 200V PU 0.36MF J 200V PU 0.47MF J scannaing capacitor C427 C CERA deletion 2kV B 120pF K 2KV B 470pF K 2KV B 470pF K sub-retrace capacitor R302 R METAL FILM 1/6 1.5k F 1/6 1.8k F 1/6 2.0k F 1/6 2.4k F vertical size resistor R407 R CARBON FILM 1/4 6.8k J 1/4 10k J 1/4 6.2k J 1/4 5.6k J beam current control

L405 COIL LINEARITY C305 C MYLAR 100V 0.01uF 100V 0.047uF Difference for Retrace line

R413 R M-OXIDE FILM 1W 4.7 J 1W 10 J vertical feedback B+ R415 R M-OXIDE FILM 1W 1.2 J 1W 1.2 J 1W 2.2 J 1W 3 J heater resistor R834 R CARBON FILM 1/4 3.6k J 1/4 3.6k J 1/4 3.9k J over current protection SCT1 SOCKET CRT PCS633A PCS629-03C CRT difference P401 CONN. ASS'Y YFW500-05 YFW500-06 V01 COIL DY ODY-M1401 ODY-M1601 ODY-M2002 V901 CRT BARE A34JLL90X A38JLL90X A48JLL90X CRT difference ZZ131 COIL DEGAUSSING DC-1450 DC-1650 DC-2050 DC-2070 ZZ132 CRT GROUND NET 1401S-1015-1P 1601S-1015-1P 2001S-1015-1P 2101S-1015-1P PA501 CONN. ASS'Y PA502 CONN. ASS'Y YH025-04...=300 YH025-04...=400 screen V/heater V port PA602 CONN. ASS'Y YH025-03...=600 YH025-03...=700 speaker connecter SP01 SPEAKER SP02 SPEAKER

L-102 ( 102uH )

YH025-06...=300 YH025-06...=400 R.G.B port

SS-5090F01 7.5W 4 SP-58126F03 7W 4

Cabinet Parts List

PART / MODEL DTU-14D3VG DTU-14D4VG DTU-16D3VG DTU-20D3VG DTU-20D4VG DTU-21D3VG DTU-21D4VG

MASK FRONT PTFMSJA596 PTFMSJA628 PTFMSJA619 PTFMSJD170 PTFMSJD327 PTFMSJD280 PTFMSJD328 COVER BACK PTBCSHA596 PTBCSHA628 PTBCSHA619 PTBCSHD170 PTBCSHD327 PTBCSHD280 PTBCSHD328 BUTTON CONTROL 4851936901 4854944901 4851936901 4851936901 4854945901 4851932600 4854946301 BUTTON POWER 4854854201 4854856201 4854854201 4854854201 4854856601 4854853801 4854857101 CRT AS PTRTPWA001 PTRTPWA001 PTRTPWB001 PTRTPWC001 PTRTPWC001 4859625560 4859625560 PCB MAIN ASSY PTMPMSA618 PTMPMSA618 PTMPMSA619 PTMPMSD279 PTMPMSD279 PTMPMSD280 PTMPMSD280

L-76 ( 76.5uH ) h-lineality correction

D.Y diffreence

A51EFK155X01

MICOM DESCRIPTION OF CP-371CHASSIS

MODEL PART CODE PART NAME

1DW244AS3- IC MICOM DW90244-AS3

VG MODEL

TM MODEL

1DW244AB2-

1DW244AR1- DW90244-AR1

1DW5457FB1 DW5457-FB1

1DW5457FR1

IC MICOM

DW90244-AB2

DW5457-FR1

OSD LANGUAGEPART DESCRIPTION

ENGLISH,MALAYSIA, VIETNAM

ENGLISH,ARABIC, FRENCH

ENGLISH, RUSSIAN, ROMANIAN

ENGLISH,ARABIC, PERSIAN,FRENCH

ENGLISH, RUSSIAN, ROMANIAN

TELETEXT

GAME REF.

VERSION UP

: WAVE FORMS : SOUND / SIF

: VIDEO / CVBS

: VERTICAL : HORIZONTAL

: POWER ( B+ )

TABLE OF CONTENTS

1. Specification ................................................................................................................................ 2

2. Safety Instruction ........................................................................................................................ 3

3. Circuit block Diagram ................................................................................................................. 4

4. IC Description .............................................................................................................................. 5

5. Trouble Shooting Charts ............................................................................................................ 15

6. Service Parts List ........................................................................................................................ 22

7. Mechanical Exploded View ......................................................................................................... 37

1. Specifications

VG : WITHOUT TXT. MODEL, TM : WITH TXT. MODEL

TV Standard PAL/SECAM-BG, D/K, I, H, NTSC-3.58/4.43, NTSC-5.5 Mains Voltage 100 ~ 250V AC, 50/60Hz Power Consumption 14" : 73W 20" : 78W

16" : 75W 21" : 86W

Sound output -. 2 Speaker ( at any MOD. 10% THD ) 5W + 5W ( TWITTER 2.5W + 2.5W ) Speaker -. 2 Speaker : 7.5W 4 ohm ( 2EA ) Antenna Impedance 75 ohm unbalanced

Tuning system Voltage Synthesize Tuning System Memory channel 100 channels Reception

channel Unit

Remote control VG : R-28B04, TM : R-28B03 Screen size 14" : 34 Cm ( A34JLL 90 x 02 )

Weight 14" : 9.7 Kg ( set )

Aux. Terminal Front : Earphone, Video In, Audio In

Function VG TM

300 ohm balanced with supplied balun

VHF - L : CH2 - CH4 VHF - H : CH5 - CH12 Cable Band : CHS1’ - CHS1 - CHS20 Hyper Band : CHS21 - CHS40 UHF : CH21 - CH69

16" : 38 Cm ( A38JLL 90 x 02 ) 20" : 48 Cm ( A48JLL 90 x 02 ) 21" : 51 Cm ( A51JLL 90 x 02 )

16" : 12 Kg ( set ) 20" : 17.2 Kg ( set ) 21" : 21.5 Kg ( set )

Rear : Video In, Audio In, Monitor out ( 2 RCA JACK, 1 SCART JACK )

-. CHILD LOCK ( CH LOCK )

-. 16 : 9 MODE

-. ZOOM MODE

-. Blue Back ( ON/OFF )

-. Local Key Menu Control

-. Arrow puzzle game

-. Monitor out

-. Simple SCART

-. Twitter speaker

-. CHILD LOCK ( SECURITY CODE LOCK )

-. OSD MESH

-. 16 : 9 MODE

-. ZOOM MODE

-. Blue Back ( ON/OFF )

-. Local Key Control Menu Control

-. Monitor out

-. Simple SCART

-. Twitter speaker

-. TELETEXT : 8 PAGE TELETEXT TOP/FLOF MODE

2. Safety Instruction

WARNING

product safety notice “ below.

X-RAY RADIATION PRECAUTION

1. Excessive high voltage can prodece 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 23-24kv(14”), 26-27kv(20”, 21”) at max beam current. The high voltage must not, under any circumstances, exceed 27.5kv (14”, 20”), 29.0kv(21”).

Each time a receiver require servicing, the high

SAFETY PRECAUTION

: Before servicing this chassis, read the “ X-RAY RADIATION precaution “, “ safety precaution “ and “

voltage should be checked. It is recommended the

reading of high voltage 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 as specified in the part list.

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

hazard before removing the anode cap.

3) Dischange 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.

PRODUCT SAFETY NOTICE

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 pro-

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 meta 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 AC260 volts, 50Hz / 60Hz. ( AC 100 ~ 250 volts, 50 / 60 Hz ) NEVER connect to DC supply or any other power or frequency.

tection afforded by them cannot necessarily be obtained by using replacement components reted for higher voltage, wattage, etc.

3. Circuit Block Diagram

4. IC description

4-1. DW 5457 - *** ( SDA 5457 : SIEMENS TYPE )

(1) General Description

The SDA 545x is a single chip teletext decoder for decoding Worled System Telertext data as well as Video Program-

ming System ( VPS ), Program Delivery Control ( PDC ), and Wide Screen Signalling ( WSS ) data used for PALplus transmissions ( line 23 ). Furthermore, the device provides an integrated C500 based general-purpose, fully 8051compatible microcontroller with television specific hardware features. The on-chip display unit for displaying ‘ Level 1.5 ’ teletext data can be used for customer defined on-screen displays. Up to 10 display pages are available internally. ROMless versions can be used together with external RAM.

The SDA 545x contains a slicer for VPS, WSS, PDC, and TTX, an accelerating acquisition hardware modul, a display

generator for “ Level 1.5 “ TTX data, and an 8 bit microcontroller running at 250 ns cycle time ( min. ). The controller with dedicated hardware guarantees flexibility, does most of the internal processing of TTX acquisition, transfers data to/from the external memory interface and receives/transmits data via I C-firmware user-interface. The slicer combined with dedicated hardware stores TTX data in a VBI buffer of 746 Byte. The microcontroller firmware performs all the acquisition tasks ( hamming - and parity - checks, page search and evaluation of header control bits ) once per field. Additionally, the firmware can provide high-end Teletext-features like Packed-26-handling, FLOF, TOP ( in 8/10-pageversions ) and listpages. The interface to the user software is optimized for minimal overhead ( see firmware data sheet for details ).

The SDA 545xOTP contains 64KB-Program-ROM plus 6KB-Character-ROM, which both are ‘ one-time-programmable

‘ ( OTP ). It is pin-compatible to all the other ROM-types of SDA 545x. It can as such be used as a test circuit, a rampup solution or even for small series in mass production.

(2) Features Acquisition ( only SDA 545x )

Feature selection via special function register Simultaneous reception of TTX, VPS, PDC, and WSS ( line 23 ) Fixed framing code for VPS and TTX Acquisition during VBI Direct access to VBI RAM buffer Acquisition of packets x/0 to x/24, x/26, x/27, 8/30 ( firmware ) Assistance of all relevant checks ( firmware ) 1-bit framing code error tolerance ( switchable ) Complete TTX-acquisition firmware with simple user interface

Display

Feature selectable via special function register 50/60/100/120-Hz display Level 1.5 serial attribute display pages Blanking and contrast reduction output 10 direct addressable display pages for SDA 5450 8 direct addressable display pages for SDA 5454 to SDA 5457 1 direct addressable display pages for SDA 5451 to SDA 5452 12 X 10-character matrix 96 character ROM (standard G0 character set )

IC description

156 national option chara ters for 12 languages ( European version ) 288 characters for X/26 display 64 block mosaic graphic characters 32 characters for OSD in expanded character ROM + 32 characters inside OSD box saturation of basic colors adjustable in 4 steps 8 foreground + 8 background colours out of 64 colours Conceal/reveal Transparent foreground/background - inside/outside of a box Constast reduction inside/outside of a box Cursor ( Colour changes from foreground to background colour ) Flash ( flash rate 1 s, independent of frame rate ) Programmable horizontal and vertical sync delay Full screen background colour in outer screen Double size/double width/double height characters Character shadowing Box shadowing Up to 64 Characters in a display row Software selectable pixel frequency ( 12, 13.7, 16, 19.2 and 24MHz )

Synchronization

Display synchronization to Sandcastle Pulse or Horizontal Sync ( HS ) and Vertical Sync ( VS )

Microcontroller

8bit C500-CPU ( 8051 compatible ) 24-MHz internal clock ( max. )

0.25 us(min.) instruction cycle Non-multiplexed 8-bit data and 16 ... 19-bit address bus ( ROMless Version ) Eight 16-bit data pionter registers ( DPTR ) Two 16-bit timers Watchdog timer Capture compare timer for infrared remote control decoding 256-bytes on-chip RAM Display RAM and TXT/VPS/PDC/WSS-Acquisition-Buffer directly accessible via MOVX 10Kbyte on-chip diaplay-RAM ( access via MOVX ) for SDA 5450 8Kbyte on-chip display-RAM ( access via MOVX ) SDA 5454 to SDA 5457 1Kbyte on-chip display-RAM ( access via MOVX ) for SDA 5451 to SDA 5452 1Kbyte on-chip ACQ-buffer-RAM ( access via MOVX ) 1Kbyte on-chip extended-RAM ( XRAM, access via MOVX ) for SDA 5450 and SDA 5454 to SDA 5457 6 Channel 8-bit pulse width modulation unit 2 Channel 15-bit pulse width modulation unit ADC with 8-bit resolution ( 4 multiplexed input channels )

Ports

One 8-bit I/O-port with open drain output and optional I C Bus emulation ( Port0 ) Two 8-bit multifunctional I/O-ports ( Port1, Port3 )

IC description

One 4-bit port working as digital or analog inputs for the ADC ( Port2 ) One 1-bit Input-port with secondary functions ( P4.7 / VS / EVEN_ODD ) One 1-bit I/O-port ( P4.0 ) ( ROM Version ) One 2-bit I/O-port with optional RAM/ROM address expansion up to 512Kbyte ( P4.0 and P4.1 ) ( ROMless Version ) One 2-bit I/O-ports ( P4.2, P4.3 )

Additional Features

Single external 6MHz crystal, all necessary clocks are generated internally CPU clock speed selectable via special function registers ( 7 possible selections between 3 and 24 MHz )

IC description

(3) Block Diagram

Figure 5 Block Diagram

1) only ROM-versions

2) only ROMless-versions

3) only SDA5450 and SDA5454 to SDA5457

4) 10kByte for SDA5450, 8kByte for SDA5454 to SDA5457, 1kByte for SDA5451 and SDA5452

+ 33 hidden pages