Daewoo CP-520, СР-520A, СР-520F Service Manual

P/N:TCP520BEF0

Service Manual

COLOR TELEVISION CHASSIS : CP-520

MODEL : DTY-28A8/28A6/28A7 DTY-2880/28W5 DTY-21U7/21B4 DTY-25G6/25G7

CHASSIS : CP-520A

MODEL : DTC-20T2 DTC-21Y1/21Y2

CHASSIS : CP-520F

MODEL : DTZ-29U7/U3 DTZ-2881/28W8 DTZ-2481

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(http://svc.dwe.co.kr)

DAEWOO ELECTRONICS Corp.

http : //svc.dwe.co.kr

June. 2004

			CP-520/520A/520F Service Manual
			CONTENTS
DOCUMENT HISTORY.................................................................................................................				3
1	MAIN FEATURES..................................................................................................................			4
	1.1	SPECIFICATIONS..........................................................................................................		4
	1.1.1		GENERAL................................................................................................................	4
	1.1.2 EURO-SCART 1 (21 Pin).........................................................................................			4
	1.1.3 EURO-SCART 2 (21 Pin).........................................................................................			5
	1.2	CHANNEL/FREQUENCY TABLE ..................................................................................		6
2	SAFETY INSTRUCTION .......................................................................................................			9
3	ALIGNMENT INSTRUCTIONS............................................................................................			10
	3.1	MICROCONTROLLER CONFIGURATION : SERVICE MODE ...................................		10
	3.2	SERVICE MODE NAVIGATION ...................................................................................		10
	3.3	MICROCONTROLLER CONFIGURATION : OPTION BITS........................................		10
	3.4	OPTION 1 .....................................................................................................................		11
	3.5	OPTION 2 .....................................................................................................................		11
	3.6	NVM DEFAULT SETTING............................................................................................		12
	3.7	TV SET ALIGNMENT ...................................................................................................		14
	3.7.1		G2 ALIGNMENT ....................................................................................................	14
	3.7.2		WHITE BALANCE .................................................................................................	14
	3.7.3		FOCUS ..................................................................................................................	14
	3.7.4		VERTICAL GEOMETRY........................................................................................	14
	3.7.5		HORIZONTAL PICTURE CENTRING ...................................................................	14
	3.7.6 EAST / WEST CORRECTION ...............................................................................			14
	3.7.7		AGC .......................................................................................................................	15
4	IC DESCRIPTION................................................................................................................			16
	4.1	UOC III SERIES .............................................................................................................		16
	4.1.1 IC MARKING AND VERSION................................................................................			16
	4.2	TDA8946J STEREO AUDIO AMPLIFIER ....................................................................		24
	4.2.1		FEATURES............................................................................................................	25
	4.3	TDA8358J VERTICAL AMPLIFIER .............................................................................		27
	4.3.1		TDA8358J..............................................................................................................	27
	4.4	TDA6107AJF................................................................................................................		29
	4.4.1		Features.................................................................................................................	29
	4.4.2		Pin description .......................................................................................................	29
	4.5	24WC16 - 16 KB EEPROM ..........................................................................................		30
	4.6	STR - F6653 .................................................................................................................		31
	4.6.1		GENERAL DESCRIPTION ....................................................................................	31
	4.6.2		FEATURES............................................................................................................	31
	4.6.3		BLOCK DIAGRAM.................................................................................................	31
	4.6.4		PIN DESCRIPTION ...............................................................................................	32
	4.6.5		CONTROL PART - ELECTRICAL CHARACTERISTICS.......................................	32
	4.6.6		MOSFET ELECTRICAL CHARACTERISTICS ......................................................	33
5	CIRCUIT DESCRIPTION .....................................................................................................			34
	5.1	BLOCK DIAGRAM .......................................................................................................		34
	5.2	FUNCTIONAL DESCRIPTION OF VIDEO PROCESSOR ...........................................		35
	5.2.1		Vision IF amplifier ..................................................................................................	35
	5.2.2		QSS sound circuit ..................................................................................................	35
	5.2.3		FM demodulator.....................................................................................................	35
	5.2.4 Audio input selector and volume contro .................................................................			36
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		5.2.4.1 STEREO AND AV STEREO VERSIONS ...........................................................		36
		5.2.4.2 MONO VERSIONS ............................................................................................		36
	5.2.5 CVBS and Y/C input signal selection .....................................................................			36
		5.2.5.1 ALL VERSIONS .................................................................................................		36
	5.2.6		Synchronisation circuit ...........................................................................................	37
	5.2.7 Horizontal and vertical drive...................................................................................			38
	5.2.8 Chroma, luminance and feature processing ..........................................................			38
	5.2.9		Colour decoder ......................................................................................................	39
	5.2.10		RGB output circuit..................................................................................................	40
	5.2.11 I2C-BUS USER INTERFACE DESCRIPTION .......................................................			42
	5.3	GENERAL DESCRIPTION OF THE TV SOUND OF SOUND PROCESSOR..............		42
	5.3.1		Supported standards .............................................................................................	43
	5.4	FUNCTIONAL DESCRIPTION SOUND PROCESSOR ...............................................		44
	5.4.1 The UOC III TV Sound Concept ............................................................................			44
	5.4.2 Functional Overview Of the digital controller sound part........................................			45
	5.4.3		Demodulator and decoder .....................................................................................	46
6	SERVICE PARTS LIST .......................................................................................................			49
	6.1	DTY-28A8FZF-S...........................................................................................................		49
	6.2	DTC-20T2FZS-S...........................................................................................................		54
	6.3	DTC-21Y1FZF-S...........................................................................................................		59
	6.4	DTZ-29U7FZS-S...........................................................................................................		64
7	EXPLODED VIEW ...............................................................................................................			69
	7.1	DTY-28A8.....................................................................................................................		69
	7.2	DTY-2880 .....................................................................................................................		70
	7.3	DTY-21U7.....................................................................................................................		71
	7.4	DTC-20T2.....................................................................................................................		72
	7.5	DTC-21Y1.....................................................................................................................		73
	7.6	DTZ-29U7 .....................................................................................................................		74
	7.7	DTZ-2881......................................................................................................................		75
	7.8	DTZ-2481......................................................................................................................		76
8	PRINTED CIRCUIT BOARD................................................................................................			77
	8.1	4859809693(CP-520) ...................................................................................................		77
	8.2	4859809893(CP-520A).................................................................................................		78
	8.3	4859809993(CP-520F) .................................................................................................		79
9	SCHEMATIC DIAGRAM......................................................................................................			80
	9.1	CP-520..........................................................................................................................		80
	9.2	CP-520A .......................................................................................................................		81
	9.3	CP-520F .......................................................................................................................		82

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DOCUMENT HISTORY

VERSION	DATE	COMMENTS
V1.00	12/05/04	Creation of document (Author JS KIM) for project CP520 50Hz TV.

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1 MAIN FEATURES

1.1SPECIFICATIONS

1.1.1		GENERAL
			TV standard				PAL - SECAM B/G D/K, PAL I/I, SECAM L/L’
			Colour system		Tuner		PAL, SECAM
					AV		PAL, SECAM, PAL 60, NTSC M, NTSC 4.43
			Sound system				NICAM B/G, I, D/K, L,
							FM 2Carrier B/G, D/K
			Power				20”,21” : 49W
			consumption				21” (4:3) Flat : 59W
							28” (4:3) : 69W
							28”(16:9) : 69W
			Sound Output				20” ~ 24” : 4.5W x 2 (at 60% mod, 10% THD)
			Power				25” ~ 29” : 7W x 2 (at 60% mod, 10%THD)
			Speaker				20” ~ 24” : 7.5W 8 ohm x 2
							25” ~ 29” : 12W 8 ohm x2
			Teletext system				10 pages memory FASTEXT (FLOF or TOP)
			Aerial input				75 ohm unbalanced
			Channel coverage				Off-air channels, S-cable channels and hyperband
			Tuning system				frequency synthesiser tuning system
			Visual screen size				20” : 48cm
							21” : 51cm
							28” : 66cm
			Channel indication				On Screen Display
			Program Selection				100 programmes
			Aux. terminal				EURO-SCART 1 : Audio / Video In and Out, R/G/B
							In, Slow and Fast switching.
							EURO-SCART 2 : Audio / Video In and Out, SVHS
							In.
							AV3 : Audio-Video Jack on front of cabinet.
							Headphone jack (3.5 mm) on front of cabinet
							SVHS3 (option) : Jack on front of cabinet – sound
							input common with AV3.
			Remote Control				R-46G22
			Unit
	1.1.2 EURO-SCART 1 (21 Pin)
	Pin		Signal Description			Matching value
1			Audio Output Right			0.5 Vrms, Impedance < 1 kΩ, ( RF 54% Mod )
2			Audio Input Right			0.5 Vrms, Impedance > 10 kΩ
3			Audio Output Left			0.5 Vrms, Impedance < 1 kΩ, ( RF 54% Mod )
4			Audio Earth
5			Blue Earth
6			Audio Input Left			0.5 Vrms, Impedance > 10 kΩ
7			Blue Input			0.7 Vpp ±0.1V, Impedance 75Ω

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			CP-520/520A/520F Service Manual
	8	Slow Switching	TV : 0 to 2V, AV 16/9 : 4.5 to 7V, AV 4/3 : 9.5 to 12V , Impedance
			> 10 kΩ
	9	Green Earth
	10	N.C.
	11	Green Input	0.7 Vpp ± 0.1V, Impedance 75Ω
	12	N.C.
	13	Red Earth
	14	Blanking Earth
	15	Red Input	0.7 Vpp ± 0.1V, Impedance 75Ω
	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
	1.1.3 EURO-SCART 2 (21 Pin)
	Pin	Signal Description	Matching value
	1	Audio Output Right	0.5 Vrms, Impedance < 1 kΩ, ( RF 54% Mod )
	2	Audio Input Right	0.5 Vrms, Impedance > 10 kΩ
	3	Audio Output Left	0.5 Vrms, Impedance < 1 kΩ, ( RF 54% Mod )
	4	Audio Earth
	5	Earth
	6	Audio Input Left	0.5 Vrms, Impedance > 10 kΩ
	7	N.C.
	8	N.C.
	9	N.C.
	10	N.C.
	11	N.C.
	12	N.C.
	13	Earth
	14	Earth
	15	Chroma Input	± 3dB for a luminance signal of 1 Vpp
	16	N.C.
	17	Earth
	18	Video In Earth
	19	Video Output	1 Vpp ± 3dB, Impedance 75Ω ( Monitor output )
	20	Video Input, Y In.	1 Vpp ± 3dB, Impedance 75Ω
	21	Common Earth

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1.2CHANNEL/FREQUENCY TABLE

CHANNEL	EUROPE CCIR	FRANCE	GB(IRELAND)	EAST OIRT
C01	46.25	-	45.75	49.75
C02	48.25	55.75 (L')	53.75	59.25
C03	55.25	60.5 (L')	61.75	77.25
C04	62.25	63.75 (L')	175.25	85.25
C05	175.25	176.00	183.25	93.25
C06	182.25	184.00	191.25	175.25
C07	189.25	192.00	199.25	183.25
C08	196.25	200.00	207.25	191.25
C09	203.25	208.00	215.25	199.25
C10	210.25	216.00	223.25	207.25
C11	217.25	189.25 (LUX)	231.25	215.25
C12	224.25	69.25 (L')	239.25	223.25
C13	53.75	76.25 (L')	247.25	-
C14	-	83.25 (L')	49.75	-
C15	82.25	90.25	57.75	-
C16	-	97.25	65.75	-
C17	183.75	-	77.75	-
C18	192.25	-	85.75	-
C19	201.25	-	-	-
C20	-	-	-	-
C21	471.25	471.25	471.25	471.25
C22	479.25	479.25	479.25	479.25
C23	487.25	487.25	487.25	487.25
C24	495.25	495.25	495.25	495.25
C25	503.25	503.25	503.25	503.25
C26	511.25	511.25	511.25	511.25
C27	519.25	519.25	519.25	519.25
C28	527.25	527.25	527.25	527.25
C29	535.25	535.25	535.25	535.25
C30	543.25	543.25	543.25	543.25
C31	551.25	551.25	551.25	551.25
C32	559.25	559.25	559.25	559.25
C33	567.25	567.25	567.25	567.25
C34	575.25	575.25	575.25	575.25
C35	583.25	583.25	583.25	583.25
C36	591.25	591.25	591.25	591.25
C37	599.25	599.25	599.25	599.25
C38	607.25	607.25	607.25	607.25
C39	615.25	615.25	615.25	615.25
C40	623.25	623.25	623.25	623.25
C41	631.25	631.25	631.25	631.25
C42	639.25	639.25	639.25	639.25
C43	647.25	647.25	647.25	647.25
C44	655.25	655.25	655.25	655.25
C45	663.25	663.25	663.25	663.25

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C46	671.25	671.25	671.25	671.25
C47	679.25	679.25	679.25	679.25
C48	687.25	687.25	687.25	687.25
C49	695.25	695.25	695.25	695.25
C50	703.25	703.25	703.25	703.25
C51	711.25	711.25	711.25	711.25
C52	719.25	719.25	719.25	719.25
C53	727.25	727.25	727.25	727.25
C54	735.25	735.25	735.25	735.25
C55	743.25	743.25	743.25	743.25
C56	751.25	751.25	751.25	751.25
C57	759.25	759.25	759.25	759.25
C58	767.25	767.25	767.25	767.25
C59	775.25	775.25	775.25	775.25
C60	783.25	783.25	783.25	783.25
C61	791.25	791.25	791.25	791.25
C62	799.25	799.25	799.25	799.25
C63	807.25	807.25	807.25	807.25
C64	815.25	815.25	815.25	815.25
C65	823.25	823.25	823.25	823.25
C66	831.25	831.25	831.25	831.25
C67	839.25	839.25	839.25	839.25
C68	847.25	847.25	847.25	847.25
C69	855.25	855.25	855.25	855.25
C70	863.25	863.25	863.25	863.25
C71	69.25	-	-	-
C72	76.25	-	-	-
C73	83.25	-	-	-
C74	90.25	-	-	-
C75	97.25	-	-	-
C76	59.25	-	-	-
C77	93.25	-	-	-
S01	105.25	104.75	103.25	105.25
S02	112.25	116.75	111.25	112.25
S03	119.25	128.75	119.25	119.25
S04	126.25	140.75	127.25	126.25
S05	133.25	152.75	135.25	133.25
S06	140.25	164.75	143.25	140.25
S07	147.25	176.75	151.25	147.25
S08	154.25	188.75	159.25	154.25
S09	161.25	200.75	167.25	161.25
S10	168.25	212.75	-	168.25
S11	231.25	224.75	-	231.25
S12	238.25	236.75	-	238.25
S13	245.25	248.75	255.25	245.25
S14	252.25	260.75	263.25	252.25
S15	259.25	272.75	271.25	259.25
S16	266.25	284.75	279.25	266.25
S17	273.25	296.75	287.25	273.25

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CP-520/520A/520F Service Manual

S18	280.25	136.00	295.25	280.25
S19	287.25	160.00	303.25	287.25
S20	294.25	-	-	294.25
S21	303.25	303.25	-	303.25
S22	311.25	311.25	311.25	311.25
S23	319.25	319.25	319.25	319.25
S24	327.25	327.25	327.25	327.25
S25	335.25	335.25	335.25	335.25
S26	343.25	343.25	343.25	343.25
S27	351.25	351.25	351.25	351.25
S28	359.25	359.25	359.25	359.25
S29	367.25	367.25	367.25	367.25
S30	375.25	375.25	375.25	375.25
S31	383.25	383.25	383.25	383.25
S32	391.25	391.25	391.25	391.25
S33	399.25	399.25	399.25	399.25
S34	407.25	407.25	407.25	407.25
S35	415.25	415.25	415.25	415.25
S36	423.25	423.25	423.25	423.25
S37	431.25	431.25	431.25	431.25
S38	439.25	439.25	439.25	439.25
S39	447.25	447.25	447.25	447.25
S40	455.25	455.25	455.25	455.25
S41	463.25	463.25	463.25	463.25

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CP-520/520A/520F Service Manual

3 ALIGNMENT INSTRUCTIONS

3.1MICROCONTROLLER 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 menus.

3 – Within 2 seconds press the key sequence : RED - GREEN - menu

The software version is displayed beside the word Service, e.g. “SERVICE VER 00.05”.

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

3.2SERVICE MODE NAVIGATION

Pr Up/Down remote keys		: cycle through the service items available.
Vol -/+ remote keys		: Dec./Increment the values within range – Cycle trough option bits.
OK key		: Toggle bits in option byte
	Order		Item		Default setting
	1		HOR CEN
	2		RED GAIN
	3		GRN GAIN
	4		BLUE GAIN
	5		RED BIAS
	6		GRN BIAS
	7		AGC LEVEL
	8		G2 – SCREEN
	9		OPTION1
	10		OPTION2
	11		AVL
	12		PARABOLA
	13		HOR WIDTH
	14		CORNER T
	15		CORNER B
	16		HOR. PARAL
	17		V. LINEAR
	18		V. SLOPE
	19		EW TRAPEZ
	20		S CORRECT
	21		VERT CENT
	22		VERT SIZE

3.3MICROCONTROLLER CONFIGURATION : OPTION BITS

There are two option bytes available (16 bits in all). These option bits are available from Service mode. First find the OPTION1 or OPTION2 control, and then use the Volume PLUS/MINUS buttons on the remote control keypad to locate the bits, and OK key to toggle them. The table below shows the two option bytes available;

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3.4OPTION 1

		B7	B6	B5	B4	B3	B2	B1	B0
		TOP	FASTEXT	TUBE	VAI bit set	Dolby	SVHS3	TUNER OPTIONS
	1	Teletext	(FLOF)		to 1 in	Virtual
				4:3			disable	00 = Philips
		OFF	OFF		SECAM L	OFF
								01 = Not used
		TOP			VAI bit set	Dolby
			FASTEXT	TUBE			SVHS3	10 = Alps
	0	Teletext			to 0 in	Virtual
			(FLOF) ON	16:9			enable	11 = Parstnic (DW)
		ON			SECAM L	ON

3.5OPTION 2

B7

B6

B5

B4

B3

B2

B1

B0

JVC

AVL

PICTURE

5 keys

Full

Double

n.u.

1

remote

control

lacal

ATSS

Window

Must

TILT ON

Fixed to

control

OFF

keyboard

Enabled

be set

to 1 for

‘0’

Daewoo

AVL

7 keys

Double

PICTURE

Basic

future

0

Remote

control

lacal

Window

TILT OFF

ATSS

compa

control

ON

keyboard

Disabled

tibility

OPTION SETTING BY MODEL

CHASSIS

MODEL

OPTION

DW[hex]

REMARKS

BIT[b7…b0]

DTY-28A6/A7/A8

I

0011

1100

3C

OPTION1 “b1,b0” -

II

0000

1001

09

depends on Tuner

CP-520

I

0001

1100

1C

OPTION2 “b1” –

DTY-28W5/80

II

0000

1001

09

From ver. 9.3B

Change to “1” - *1

DTY-21U7

I

0011

1100

3C

II

0000

1001

09

CP-520A

DTC-20T2

I

0011

1100

3C

DTC-21Y1/Y2

II

0000

1001

09

I

0001

1000

18

If Sales Team

DTZ-2881/W8

Request TILT

function

DTZ-2481

II

0000

1001

09

CP-520F

Change to OP 2 –

“b4” to “1” & *1

DTZ-29U7/B3

I

0011

1000

38

II

0000

1001

09

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CP-520/520A/520F Service Manual

3.6NVM default setting

The purpose of this message, when you change a virgin EEPROM, is to allow to modify the NVM DATA to desired values.

1 - Introduction :

The NVM default valus are fixed for the user, but for flexibility in service, these data are stored in NVM and can be changed when the TV set is in a special mode call "NVM EDITOR". This mode can only be access from "FACTORY" mode.

2 - Entering into "FACTORY" mode.

To switch the TV set into FACTORY mode, use the factory remote control, and press on “SVC” key. The factory menu will appear on the screen, showing “FACTORY” , plus other relevant information like software version and date.

WARNING : When in "FACTORY" mode you should not press any key other than the keys described in the procedure below. Unwanted key stroke could misadjust the TV set.

3 - Entering into "NVM EDITOR" mode.

To switch the TV set into NVM EDITOR mode, use the user remote control, and press on

“PICTURE/OK” key. The NVM EDITOR window will appear on the screen. This mode allow you to access all data stored in NVM. The current NVM address is given in column "ADDR." in both

DECimal and HEXadecimal format. The column DATA gives the value contained at selected address in both DECimal and HEXadecimal format.

4 - Navigation in "NVM EDITOR" mode.

Use Program Up/Dwn keys to select the desired address. Use Volume Up/Dwn keys to change the data at selected address. You must press "PICTURE/OK" key to store value after modification.

The data can be adjusted between 0 and 63.

5 - Exit "NVM EDITOR" mode.

To switch the TV set back into FACTORY mode, use the user remote control, and press on “MENU” key.

The factory menu will appear on the screen, showing “FACTORY”.

6 - Exit "FACTORY" mode.

To exit "FACTORY" mode, use the factory remote control, and press on “SVC” key.

The factory menu will disappear from the screen.

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NVM DATA CHANGE LIST			(hex)		CP-520			CP-520F		CP-520A
No	Register Name	Address	Default	28A8	2880		21U7	2881	29U7	21Y1	20T2
1	OCP_THRESHOLD	0x58F	0x91	<-	<-		<-	<-	<-	<-	<-
2	DCXO	0x590	0x4E	<-	<-		<-	<-	<-	<-	<-
3	AGC_PHILIPS	0x5C1	0xAB	<-	<-		<-	<-	<-	<-	<-
4	AGC_NC	0x5C2	0xAB	<-	<-		<-	<-	<-	<-	<-
5	AGC_ALPS	0x5C3	0xB6	<-	<-		<-	<-	<-	<-	<-
6	AGC_PARTSNIC	0x5C4	0xB6	<-	<-		<-	<-	<-	<-	<-
7	AGC_PHILIPS_START	0x5C5	0x16	<-	<-		<-	<-	<-	<-	<-
8	AGC_NC_START	0x5C6	0x16	<-	<-		<-	<-	<-	<-	<-
9	AGC_ALPS_START	0x5C7	0x16	<-	<-		<-	<-	<-	<-	<-
10	AGC_PARTSNIC_START	0x5C8	0x16	<-	<-		<-	<-	<-	<-	<-
11	AVLLEV	0x621	0x5	<-	<-		<-	<-	<-	<-	<-
12	Nor1_Bright	0x64A	0x23	<-	<-		<-	<-	<-	<-	<-
13	Nor1_contrast	0x64B	0x2E	<-	<-		<-	<-	<-	<-	<-
14	Nor1_Colour	0x64C	0x1C	<-	<-		<-	<-	<-	<-	<-
15	Nor1_Sharpness	0x64D	0x23	<-	<-		<-	<-	<-	<-	<-
16	Nor1_Tint	0x64E	0x20	<-	<-		<-	<-	<-	<-	<-
17	Nor1_JVC_Bri	0x64F	0x2D	<-	<-		<-	<-	<-	0x22	<-
18	Nor1_JVC_Cont	0x650	0x2A	<-	<-		<-	<-	<-	0x2E	<-
19	Nor1_JVC_Colour	0x651	0x1B	<-	<-		<-	<-	<-	0x20	<-
20	Nor1_JVC_Sharp	0x652	0x23	<-	<-		<-	<-	<-	<-	<-
21	Nor2_Bright	0x653	0x28	0x23	<-		<-	<-	<-	0x22	<-
22	Nor2_Contrast	0x654	0x13	0x1A	<-		<-	<-	<-	<-	<-
23	Nor2_Colour	0x655	0x19	0x16	<-		<-	<-	<-	<-	<-
24	Nor2_Sharpness	0x656	0x1B	<-	<-		<-	<-	<-	<-	<-
25	Nor2_Tint	0x657	0x20	<-	<-		<-	<-	<-	<-	<-
26	PresetGainRGB	0x673	0x2A	<-	<-		<-	<-	<-	0x22	<-
27	PresetGainRGB	0x674	0x2A	<-	<-		<-	<-	<-	0x22	<-
28	PresetGainRGB	0x675	0x2A	<-	<-		<-	<-	<-	0x22	<-
29	Cathode_Drive	0x67B	0x1	<-	<-		<-	<-	<-	<-	<-
30	Y_delay_PAL_BG	0x686	0x5	<-	<-		<-	<-	<-	0x1	<-
31	Y_delay_SECAM_BG	0x687	0x8	<-	<-		<-	<-	<-	0x6	<-
32	Y_delay_PAL_DK	0x688	0x5	<-	<-		<-	<-	<-	0x0	<-
33	Y_delay_SCM_DK	0x689	0x5	<-	<-		<-	<-	<-	0x2	<-
34	Y_delay_PAL_I	0x68A	0x7	<-	<-		<-	<-	<-	0x1	<-
35	Y_delay_SECAM	0x68B	0x5	<-	<-		<-	<-	<-	<-	<-
36	Y_delay_SECAM-L	0x68C	0x8	<-	<-		<-	<-	<-	0x6	<-
37	Y_delay_AV	0x68D	0xA	<-	<-		<-	<-	<-	0x2	<-
38	G2_Bright	0x68E	0x1A	<-	<-		0x28	0x10	0x1A	0x32	<-
39	G2_Contrast	0x68F	0x42	<-	<-		0x42	0x42	0x42	0x42	<-

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3.7TV SET ALIGNMENT

3.7.1 G2 ALIGNMENT

- Tune a colour bar pattern.

- Find the “G2 – SCREEN” item in service mode.

- Adjust screen volume (on FBT) to bring the cursor to central position(Green).

3.7.2 WHITE BALANCE

- Select a dark picture and adjust RED BIAS and GRN BIAS to the desired colour temperature.

- Select a bright picture and adjust RED, GRN and BLUE GAIN to the desired colour temperature.

3.7.3 FOCUS

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

3.7.4 VERTICAL GEOMETRY

Adjust V. LINEAR (linearity), S CORRECT (S. Correction), VERT SIZE (Vertical amplitude),

VERT CENT (vertical centring) to compensate for vertical distortion.

3.7.5 HORIZONTAL PICTURE CENTRING

Adjust HOR CEN (Horizontal centre) to have the picture in the centre of the screen.

3.7.6 EAST / WEST CORRECTION

Adjust the PARABOLA, HOR WIDTH, CORNER, HOR PARAL, EW TRAPEZ, to compensate for geometrical distortion.

HOR PARAL

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HOR WIDTH adjust for 93% overscan.

PARABOLA

CORNER B & CORNER T

EW TRAPEZ

3.7.7 AGC

-Make sure option bits are correct for the tuner fitted on the chassis (See above how to change option bits).

-Adjust the antenna signal level at 62 dBμV

-Tune a colour bar pattern.

-Find the “AGC” item in service mode.

-Press the key “OK” on the remote keypad and wait until AGC level stabilise to the optimum value.

-Alternatively, use “Vol Up/Dwn” keys to adjust manually to the desired Tuner Take Over Point

(TOP).

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4 IC DESCRIPTION

4.1UOC III Series

The UOCIII series combines the functions of a Video Signal Processor (VSP) together with a FLASH embedded TEXT/Control/Graphics μ-Controller (TCG μ-Controller) and US Closed Caption decoder. In addition the following functions can be added:

∙Adaptive digital (4H/2H) PAL/NTSC combfilter

∙Teletext decoder with 10 page text memory

∙Multi-standard stereo decoder

∙BTSC stereo decoder

∙Digital sound processing circuit

∙Digital video processing circuit

4.1.1 IC MARKING AND VERSION

Chassis	IC marking	OSD languages	ATSS countries	Text
		BULGARIAN,	Austria, Belgium,
		CZECH, GERMAN,
		DANISH, SPANISH,	Switzerland, Czech
		FRENCH, FINNISH,	Republic, Germany,
		ENGLISH, GREEK,	Denmark, Spain,
CP-520A		HUNGARIAN,	France, Finland, GB,	PAN-EUROPEAN
CP-520		ITALIAN,	Greece, Hungary, Italy,	LATIN, CYRILLIC,
CP-520F		NORWEGIAN,	Ireland, Norway,	GREEK.
		DUTCH, POLISH,	Netherlands, Portugal,
		ROMANIAN,	Poland, Sweden,
		RUSSIAN,	Slovak Republic,
		SWEDISH,	Others
		SLOVAKIAN.

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4.1.2. BLOCK DIAGRAM

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	4.1.3. PINNING
	QFP 128pin		Symbol	Short Description
	1		P1.5/TX	Port 1.5 or UART bus
	2		P1.4/RX	port 1.4 or UART bus
	3		P1.2/INT2	port 1.2 or external interrupt 2
	4		VSSC3	Ground
	5		VDDC3	digital supply to core (1.8V)
	6		P2.5/PWM4	port 2.5 or PWM4 output
	7		P2.4/PWM3	port 2.4 or PWM3 output
	8		VSSC/P	digital ground for m-Controller core and periphery
	9		P3.3/ADC3	port 3.3 or ADC3 input
	10		P3.2/ADC2	port 3.2 or ADC2 input
	11		DECV1V8	decoupling 1.8 V supply
	12		VDDC1	digital supply to core (+1.8 V)
	13		P3.1/ADC1	port 3.1 or ADC1 input
	14		P3.0/ADC0	port 3.0 or ADC0 input
	15		P2.3/PWM2	port 2.3 or PWM2 output
	16		P2.2/PWM1	port 2.2 or PWM1 output
	17		P2.1/PWM0	port 2.1 or PWM0 output
	18		P2.0/TPWM	port 2.0 or Tuning PWM output
	19		VDDP(3.3V)	supply to periphery and on-chip voltage regulator (3.3
				V)
	20		P1.7/SDA	port 1.7 or I2C-bus data line
	21		P1.6/SCL	port 1.6 or I2C-bus clock line
	22		P1.3/T1	port 1.3 or Counter/Timer 1 input
	23		P0.0/I2SDI1/O	port 0.0 or I2S digital input 1 or I2S digital output
	24		P0.1/I2SDO1	port 0.1 or I2S digital output 1
	25		P0.2/I2SDO2	port 0.2 or I2S digital output 2
	26		P0.3/I2SCLK	port 0.3 or I2S clock
	27		P0.4/I2SWS	port 0.4 or I2S word select
	28		VSSC2	Ground
	29		VDDC2	digital supply to core (1.8 V)
	30		P1.1/T0	port 1.1 or Counter/Timer 0 input
	31		P1.0/INT1	port 1.0 or external interrupt 1
	32		INT0/P0.5	external interrupt 0 or port 0.5 (4 mA current sinking
				capability for direct drive of LEDs)
	33		VDDadc(1.8)	supply voltage video ADC
	34		VSSadc	ground for on-chip temperature sensor
	35		VDDA2(3.3)	supply voltage SDAC (3.3 V)
	36		VDDA(1.8)	analogue supply for audio ADCs (1.8 V)
	37		GNDA	Ground
	38		VREFAD	reference voltage for audio ADCs (3.3/2 V)
	39		VREFAD_POS	positive reference voltage (3.3 V)
	40		VREFAD_NEG	negative reference voltage (0 V)
				analog supply for TCG m-Controller and digital supply
	41		VDDA1	for
				TV-processor (+3.3 V)
	42		BO	Blue output

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	43	GO	Green output
	44	RO	Red output
	45	BLKIN	black current input
	46	BCLIN	beam current limiter input
	47	VP3	3rd supply for TV processor
	48	GND3	ground 3 for TV-processor
	49	B/PBIN3	3rd B input / PB input
	50	G/YIN3	3rd G input / Y input
	51	R/PRIN3	3rd R input / PR input
	52	INSSW3	3rd RGB / YPBPR insertion input
	53	VOUT(SWO1)	V-output for YUV interface (general purpose switch
			output)
	54	UOUT(INSSW2)	U-output for YUV interface (2nd RGB / YPBPR
			insertion input)
	55	YOUT	Y-output (for YUV interface)
	56	YSYNC	Y-input for sync separator
	57	YIN (G/YIN2/CVBS-Yx)	Y-input for YUV interface (2nd G input / Y input or
			CVBS/YX input))
	58	UIN (B/PBIN2)	U-input for YUV interface (2nd B input / PB input)
	59	VIN (R/PRIN2/CX)	V-input for YUV interface (2nd R input / PR input or CX
			input)
	60	VDDcomb	supply voltage for comb filter (5 V)
	61	VSScomb	ground connection for comb filter
	62	HOUT	horizontal output
	63	FBISO/CSY	flyback input/sandcastle output or composite H/V
			timing output
	64	SVM	scan velocity modulation output
	65	CVBSO/PIP	CVBS / PIP output
	66	AUDOUTHPR	audio output for headphone channel (right signal)
	67	AUDOUTHPL	audio output for headphone channel (left signal)
	68	AUDOUTLSR	audio output for audio power amplifier (right signal)
	69	AUDOUTLSL	audio output for audio power amplifier (left signal)
	70	C2/C3	chroma-2/3 input
	71	CVBS3/Y3	CVBS3/Y3 input
	72	AUDIOIN3R	audio 3 input (right signal)
	73	AUDIOIN3L	audio 3 input (left signal)
	74	CVBS2/Y2	CVBS2/Y2 input
	75	AUDIOIN2R	audio 2 input (right signal)
	76	AUDIOIN2L	audio 2 input (left signal)
	77	C4	chroma-4 input
	78	CVBS4/Y4	CVBS4/Y4 input
	79	AUDIOIN4R	audio-4 input (right signal)
	80	AUDIOIN4L	audio-4 input (left signal)
	81	IFVO/SVO/CVBSI (2)	IF video output / selected CVBS output / CVBS input
	82	VP2	2nd supply voltage TV processor (+5 V)
	83	AGC2SIF	AGC capacitor second sound IF
	84	VCC8V	8 Volt supply for audio switches
	85	DVBO/FMRO (2)	Digital Video Broadcast output / FM radio output
	86	DVBO/IFVO/FMRO (2)	Digital Video Broadcast output / IF video output / FM
			radio output

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	87	SIFAGC/DVBAGC (2)	AGC sound IF / internal-external AGC for DVB
			applications
	88	PLLIF	IF-PLL loop filter
	89	GND2	ground 2 for TV processor
	90	QSSO/AMOUT/AUDEE	QSS intercarrier output / AM output / deemphasis
		M (2)	(front-end audio
			out)
	91	DECSDEM	decoupling sound demodulator
	92	AUDOUTSR	audio output for SCART/CINCH (right signal)
	93	AUDOUTSL	audio output for SCART/CINCH (left signal)
	94	AUDIOIN5R	audio-5 input (right signal)
	95	AUDIOIN5L	audio-5 input (left signal)
			Automatic Volume Levelling / switch output / sound IF
		AVL/SWO/SSIF/	input /
	96		subcarrier reference output / external reference signal
		REFO/REFIN (2)
			input for I
			signal mixer for DVB operation
	97	EHTO	EHT/overvoltage protection input
	98	AGCOUT	tuner AGC output
	99	SIFIN2/DVBIN2 (2)	SIF input 2 / DVB input 2
	100	SIFIN1/DVBIN1 (2)	SIF input 1 / DVB input 1
	101	GNDIF	ground connection for IF amplifier
	102	IREF	reference current input
	103	VSC	vertical sawtooth capacitor
	104	VIFIN2	IF input 2
	105	VIFIN1	IF input 1
	106	VDRA	vertical drive A output
	107	VDRB	vertical drive B output
	108	EWD/AVL (1)	East-West drive output or AVL capacitor
	109	DECBG	bandgap decoupling
	110	SECPLL	SECAM PLL decoupling
	111	GND1	ground 1 for TV-processor
	112	PH1LF	phase-1 filter
	113	PH2LF	phase-2 filter
	114	VP1	1st supply voltage TV-processor (+5 V)
	115	DECDIG	decoupling digital supply
			V-guard input / I/O switch (e.g. 4 mA current sinking
	116	VGUARD/SWIO	capability for
			direct drive of LEDs)
	117	VSSA1	Ground
	118	XTALOUT	crystal oscillator output
	119	XTALIN	crystal oscillator input
	120	VREF_POS_HPR	positive reference voltage SDAC (3.3 V)
	121	VREF_NEG_HPL+HPR	negative reference voltage SDAC (0 V)
	122	VREF_POS_LSR+HPR	positive reference voltage SDAC (3.3 V)
	123	VREF_NEG_LSL+HPL	negative reference voltage SDAC (0 V)
	124	VREF_POS_LSL	positive reference voltage SDAC (3.3 V)
	125	VDDA3(3.3V)	supply (3.3 V)
	126	VDDC4	digital supply to SDACs (1.8V)
	127	VSSC4	Ground
	128	VSSP2	Ground

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4.1.4 FEATURES

Analogue Video Processing (all versions)

·Multi-standard vision IF circuit with alignment-free PLL demodulator

·Internal (switchable) time-constant for the IF-AGC circuit

·Switchable group delay correction and sound trap (with switchable centre frequency) for the demodulated CVBS signal

·DVB/VSB IF circuit for preprocessing of digital TV signals.

·Video switch with 3 external CVBS inputs and a CVBS output. All CVBS inputs can be used as Y-input for Y/C signals. However, only 2 Y/C sources can be selected because the circuit has 2 chroma inputs. It is possible to add an additional CVBS(Y)/C input (CVBS/YX and CX) when the

YUV interface and the RGB/YPRPB input are not needed.

·Automatic Y/C signal detector

·Adaptive digital (4H/2H) PAL/NTSC comb filter for optimum separation of the luminance and the chrominance signal.

·Integrated luminance delay line with adjustable delay time

·Picture improvement features with peaking (with switchable centre frequency, depeaking, variable positive/negative peak ratio, variable pre-/overshoot ratio and video dependent coring), dynamic skin tone control, gamma control and blueand black stretching. All features are available for CVBS, Y/C and RGB/YPBPR signals.

·Switchable DC transfer ratio for the luminance signal

·Only one reference (24.576 MHz) crystal required for the TCG m-Controller, digital sound processor, Teletext and the colour decoder

·Multi-standard colour decoder with automatic search system and various “forced mode” possibilities

·Internal base-band delay line

·Indication of the Signal-to-Noise ratio of the incoming CVBS signal

·Linear RGB/YPBPR input with fast insertion.

·YUV interface. When this feature is not required some pins can be used as additional

RGB/YPBPR input. It is also possible to use these pins for additional CVBS (or Y/C) input

(CVBS/YX and CX).

·Tint control for external RGB/YPBPR signals

·Scan Velocity Modulation output. The SVM circuit is active for all the incoming CVBS, Y/C and

RGB/YPBPR signals. The SVM function can also be used during the display of teletext pages.

·RGB control circuit with ‘Continuous Cathode Calibration’, white point and black level off-set adjustment so that the colour temperature of the dark and the light parts of the screen can be chosen independently.

·Contrast reduction possibility during mixed-mode of OSD and Text signals

·Adjustable ‘wide blanking’ of the RGB outputs

·Horizontal synchronization with two control loops and alignment-free horizontal oscillator

·Vertical count-down circuit

·Vertical driver optimized for DC-coupled vertical output stages

·Horizontal and vertical geometry processing with horizontal parallelogram and bow correction and horizontal and vertical zoom

·Low-power start-up of the horizontal drive circuit

Analogue video processing (stereo versions)

·The low-pass filtered ‘mixed down’ I signal is available via a single ended or balanced output stage.

Analogue video processing (mono versions)

·The low-pass filtered ‘mixed down’ I signal is available via a single ended output stage

Digital Video Processing (some versions)

·Double Window mode applications. It is possible to display a video and a text window or 2 text

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windows in parallel.

·Linear and non-linear horizontal scaling of the video signal to be displayed.

Sound Demodulation (all versions)

·Separate SIF (Sound IF) input for single reference QSS (Quasi Split Sound) demodulation.

·AM demodulator without extra reference circuit

·The mono intercarrier sound circuit has a selective FM-PLL demodulator which can be switched to the different FM sound frequencies (4.5/5.5/6.0/6.5 MHz). The quality of this system is such that the external band-pass filters can be omitted. In the stereo versions of UOCIII the use of this demodulator is optional for special applications. Normally the FM demodulators of the stereo demodulator/decoder part are used (see below).

·The FM-PLL demodulator can be set to centre frequencies of 4.72/5.74 MHz so that a second sound channel can be demodulated. In such an application it is necessary that an external bandpass filter is inserted.

·The vision IF and mono intercarrier sound circuit can be used for the demodulation of FM radio signals. With an external FM tuner also signals with an IF frequency of 10.7 MHz can be demodulated.

·Switch to select between 2nd SIF from QSS demodulation or external FM (SSIF)

Audio Interfaces and switching (stereo versions with Audio DSP)

·Audio switch circuit with 4 stereo inputs, a stereo output for SCART/CINCH, 1 stereo output for HEADPHONE. The headphone channel has an analogue volume control circuit for the L and R channel. Finally 1 stereo SPEAKER output with digital controls.

·AVL (Automatic Volume Levelling) circuit for the headphone channel.

·Digital input crossbar switch for all digital signal sources and destinations

·Digital output crossbar for exchange of channel processing functionality

·Digital audio input interface (stereo I2S input interface)

·Digital audio output interface (stereo I2S output interface)

Audio interfaces and switching (AV stereo versions without Audio DSP)

·Audio switch circuit with 4 stereo inputs, a stereo output for SCART/CINCH and a stereo

SPEAKER output with analogue volume control.

·Analogue mono AVL circuit at left audio channel

Audio interfaces and switching (mono versions)

·Audio switch circuit with 4 external audio (mono) inputs and a volume controlled output

·AVL circuit

Stereo Demodulator and Decoder (full stereo versions)

·Demodulator and Decoder Easy Programming (DDEP)

·Auto standard detection (ASD)

·Static Standard Selection (SSS)

·DQPSK demodulation for different standards, simultaneously with 1-channel FM demodulation

·NICAM decoding (B/G, I, D/K and L standard)

·Two-carrier multistandard FM demodulation (B/G, D/K and M standard)

·Decoding for three analog multi-channel systems (A2, A2+ and A2*) and satellite sound

·Adaptive de-emphasis for satellite FM

·Optional AM demodulation for system L, simultaneously with NICAM

·Identification A2 systems (B/G, D/K and M standard) with different identification time constants

·FM pilot carrier present detector

·Monitor selection for FM/AM DC values and signals, with peak and quasi peak detection option

·BTSC MPX decoder

·SAP decoder

·dbx® noise reduction (4)

·Japan (EIAJ) decoder

·FM radio decoder

·Soft-mute for DEMDEC outputs DEC, MONO and SAP

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