DAEWOO CP-185N, CP-185C Schematic

0 (0)

S/M No. : TCP185C/NEF

Service Manual

Color Television

CHASSIS : CP-185N and CP-185C

Specification

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

Speaker	3W 8 Ohm o 7.5W 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

Visual screen size	14":34cm
Visual screen size	20':48cm
	21":51cm

Channel indication	On screen display

Program selection	100 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
Auxiliary Outpup Terminal	Audio - Video jack on front of cabinet in common
	Audio - Video jack on front of cabinet in common
	connection with EURO-SCART
	Headphone jack on front of cabinet

Remote control	R-40A10 (None teletext)	AAA Battery type
Remote control	R-40A01(With teletext)	AAA Battery type
	R-44C05(With teletext)	AA Battery type

DAEWOO ELECTRONICS CO., LTD

http://svc.dwe.co.kr	Sep. 2001

TABLE OF CONTENTS

SAFETY INSTRUCTION 2

SPECIFICATIONS 3

21 Pin EURO-SCART 3

CIRCUIT BLOCK DIAGRAM 4

ALIGNMENT INSTRUCTIONS 5

1.Service mode5

2.Microcontroller configuration5

3.TV SET Alignment 5~6

SCHEMATIC DIAGRAM 7

EXPLODED VIEW 8~10

PRINTED CIRCUIT BOARD11

SERVICE PARTS LIST 12~23

The different parts list 24

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

FUNCTIONAL DESCRIPTION 1~6

IC DESCRIPTION 7~20

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 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 substitutes replacement parts which do not have the same safety characteristics as specified in the parts list may create X-RAY Radiation.

SPECIFICATIONS

21Pin EURO-SCART

SIGNAL DESCRIPTION

MATCHING VALUE

Audio Output Right

0.5 Vrms, Impedance < 1kΩ , (RF 54% Mod)

Audio Input Right

0.5Vrms, Impedance > 10kΩ

Audio Output Left

0.5 Vrms, Impedance < 1kΩ , (RF 54% Mod)

Audio Earth

Blue Earth

Audio Input Left

0.5Vrms, Impedance > 10kΩ

Blue Input

0.7Vpp + 0.1V, Inpedance 75Ω

Slow Switching

TV : 0 to 2V, AV : 4.5 to 12V, Impedance > 10kΩ

Green Earth

N.C

Green Input

0.7Vpp + 0.1V, Impedance 75Ω

N.C

Red Earth

Blanking Earth

Red Input

0.7Vpp

0.1V, Impedance 75Ω

Chroma Input

3dB for a luminance signal of 1 Vpp

Fast Switching

0 to 0.4V : Logic :"0", 1 to 3V : Logic "1", Impedance 75Ω

Video Out Earth

Video In Earth

Video Output

1 Vpp

3dB, Impedance 75Ω

Video Input

1 Vpp

3dB, Impedance 75Ω

Common Earth

CIRCUIT BLOCK DIAGRAM

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 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

PHI	LIPS (tuner internal AGC )

PH2	PHILIPS ( Video processor AGC )

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

Screen size	Vcut-off

14"	115V

20" & 21"	125V

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

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 68dBµV2 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

EXPLODED VIEW

2. 20V1

ELECTRICAL PARTS LIST

CAUTION

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

“” is a recommendable part for essential stock.

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

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

ELECTRICAL PARTS LIST

LOC	PART CODE	PART NAME	DESCRIPTION	REMARK
T401	50D10A3—-	TRANS DRIVE	TD-10A3

T402	50H0000211	FBT	1142.5109

T802	50M4042A7-	TRANS SMPS	TSM-4042A7

U100	4859721530	TUNER VARACTOR	DT5-BF18D N

X502	5XE12R000E	CRYSTAL QUARTZ	HC-49/U 12.00000MHZ 30PPM

Z501	5PYXT5R5MB	FILTER CERA	XT 5.5MB

Z502	5PYXT6R5MB	FILTER CERA	XT 6.5MB

Z503	5PYXT6R0MB	FILTER CERA	XT 6.0MB

ZZ200	PTMPJ0D435	PCB MAIN (RHU) AS	DTA-21V1MZ

C315	CEXF2C330V	C ELECTRO	160V RSS 33MF (13X20) TP

C415	CEXF2E100V	C ELECTRO	250V RSS 10MF (10X20) TP

C805	CBXB3D102K	C CERA SEMI	2KV BL(N) 1000PF K (T)

C810	CEXF2C101V	C ELECTRO	160V RSS 100MF (16X25) TP

C811	CEXF2C101V	C ELECTRO	160V RSS 100MF (16X25) TP

C813	CEXF1C222V	C ELECTRO	16V RSS 2200MF (13X25) TP

C814	CEXF1E102V	C ELECTRO	25V RSS 1000MF (13X20) TP

C903	CCXB3D102K	C CERA	2KV B 1000PF K (TAPPING)

ZZ200	PTMPJBD435	PCB MAIN M-10 AS	DTA-21V1MZ

10	2TM18006BE	TAPE MASKING	6.2X500

E001	4856310300	EYE LET	BSR T0.2 (R1.6)

E002	4856310300	EYE LET	BSR T0.2 (R1.6)

E003	4856310300	EYE LET	BSR T0.2 (R1.6)

E004	4856310300	EYE LET	BSR T0.2 (R1.6)

E005	4856310300	EYE LET	BSR T0.2 (R1.6)

E006	4856310300	EYE LET	BSR T0.2 (R1.6)

E007	4856310300	EYE LET	BSR T0.2 (R1.6)

E008	4856310300	EYE LET	BSR T0.2 (R1.6)

E009	4856310300	EYE LET	BSR T0.2 (R1.6)

E010	4856310300	EYE LET	BSR T0.2 (R1.6)

E011	4856310300	EYE LET	BSR T0.2 (R1.6)

E012	4856310300	EYE LET	BSR T0.2 (R1.6)

E013	4856310300	EYE LET	BSR T0.2 (R1.6)

E014	4856310300	EYE LET	BSR T0.2 (R1.6)

E015	4856310300	EYE LET	BSR T0.2 (R1.6)

E016	4856310300	EYE LET	BSR T0.2 (R1.6)

E017	4856310300	EYE LET	BSR T0.2 (R1.6)

E018	4856310300	EYE LET	BSR T0.2 (R1.6)

E019	4856310300	EYE LET	BSR T0.2 (R1.6)

E020	4856310300	EYE LET	BSR T0.2 (R1.6)

E021	4856310300	EYE LET	BSR T0.2 (R1.6)

E022	4856310300	EYE LET	BSR T0.2 (R1.6)

E023	4856310300	EYE LET	BSR T0.2 (R1.6)

E024	4856310300	EYE LET	BSR T0.2 (R1.6)

E100	4856310600	EYE LET	BSR T0.2 (R2.3)

E101	4856310600	EYE LET	BSR T0.2 (R2.3)

ELECTRICAL PARTS LIST

LOC	PART CODE	PART NAME	DESCRIPTION	REMARK
E102	4856310600	EYE LET	BSR T0.2 (R2.3)

E103	4856310600	EYE LET	BSR T0.2 (R2.3)

E104	4856310600	EYE LET	BSR T0.2 (R2.3)

E105	4856310600	EYE LET	BSR T0.2 (R2.3)

E106	4856310600	EYE LET	BSR T0.2 (R2.3)

E107	4856310600	EYE LET	BSR T0.2 (R2.3)

E108	4856310600	EYE LET	BSR T0.2 (R2.3)

E109	4856310600	EYE LET	BSR T0.2 (R2.3)

E110	4856310600	EYE LET	BSR T0.2 (R2.3)

E111	4856310600	EYE LET	BSR T0.2 (R2.3)

E112	4856310600	EYE LET	BSR T0.2 (R2.3)

E113	4856310600	EYE LET	BSR T0.2 (R2.3)

E114	4856310600	EYE LET	BSR T0.2 (R2.3)

E115	4856310600	EYE LET	BSR T0.2 (R2.3)

E116	4856310600	EYE LET	BSR T0.2 (R2.3)

E117	4856310600	EYE LET	BSR T0.2 (R2.3)

E118	4856310600	EYE LET	BSR T0.2 (R2.3)

E119	4856310600	EYE LET	BSR T0.2 (R2.3)

N001	4857417500	TERM PIN	DA-IB0214(D2.3/DY PIN)

N002	4857417500	TERM PIN	DA-IB0214(D2.3/DY PIN)

N003	4857417500	TERM PIN	DA-IB0214(D2.3/DY PIN)

N004	4857417500	TERM PIN	DA-IB0214(D2.3/DY PIN)

P601	485923162S	CONN WAFER	YW025-03 (STICK)

R303	RS02Z129JS	R M-OXIDE FILM	2W 1.2 OHM J SMALL

R402	RS01Z279J-	R M-OXIDE FILM	1W 2.7 OHM J (TAPPING)

R415	RS02Z102JS	R M-OXIDE FILM	2W 1K OHM J SMALL

R819	RS02Z473JS	R M-OXIDE FILM	2W 47K OHM J SMALL

R821	RS02Z180JS	R M-OXIDE FILM	2W 18 OHM J SMALL

R822	RS02Z101JS	R M-OXIDE FILM	2W 100 OHM J SMALL

R824	RS02Z560JS	R M-OXIDE FILM	2W 56 OHM J SMALL

ZZ200	PTMPJRD435	PCB MAIN RADIAL AS	DTA-21V1MZ

C101	CEXF1H100V	C ELECTRO	50V RSS 10MF (5X11) TP

C102	CEXF1E470V	C ELECTRO	25V RSS 47MF (5X11) TP

C106	CEXF1H100V	C ELECTRO	50V RSS 10MF (5X11) TP

C121	CEXF1H100V	C ELECTRO	50V RSS 10MF (5X11) TP

C305	CEXF1E221V	C ELECTRO	25V RSS 220MF (8X11.5) TP

C313	CMXM2A104J	C MYLAR	100V 0.1MF J (TP)

C314	CMXM2A104J	C MYLAR	100V 0.1MF J (TP)

C412	CEXF2C229V	C ELECTRO	160V RSS 2.2MF (8X11.5)TP

C414	CMXM2A104J	C MYLAR	100V 0.1MF J (TP)

C417	CXSL2H470J	C CERA	500V SL 47PF J (TAPPING)

C418	CMXM2A104J	C MYLAR	100V 0.1MF J (TP)

C420	CCXB1H102K	C CERA	50V B 1000PF K (TAPPING)

C500	CEXF1H478V	C ELECTRO	50V RSS 0.47MF (5X11) TP

C501	CEXF1H100V	C ELECTRO	50V RSS 10MF (5X11) TP

+ 29 hidden pages