SAMSUNG CL15A8L7X-GSU, CL15A8L7X-RCL, CL15A8L7X-STR, CL21A8W7X-GSU, CL21A8W7X-RCL Service Manual

COLOR TELEVISION RECEIVER

Chassis :	KS2A(N)
Model :	CL15A8L7X/GSU	CL15A8L7X/RCL
	CL15A8L7X/STR	CL21A8W7X/GSU
	CL21A8W7X/RCL	CL21A8W7X/STR
	CL25A6W7X/RCL

COLOR TELEVISION RECEIVER

CONTENTS

1. Precautions

2. Reference Information

3. Specifications

4. Alignment and Adjustments

5. Troubleshooting

6. Exploded Views and Parts List

7. Electrical Parts List

8. Block Diagrams

9. Wiring Diagram

10. Schematic Diagrams

Precautions

1. Precautions

Follow these safety, servicing and ESD precautions to prevent damage and protect against potential hazards such as electrical shock and X-rays.

1-1 Safety Precautions

1.Be sure that all of the built-in protective devices are replaced. Restore any missing protective shields.

2.When reinstalling the chassis and its assemblies, be sure to restore all protective devices, including: nonmetallic control knobs and compartment covers.

3.Make sure that there are no cabinet openings through which people—particularly children—might insert fingers and contact dangerous voltages. Such openings include the spacing between the picture tube and the cabinet mask, excessively wide cabinet ventilation slots, and improperly fitted back covers.

If the measured resistance is less than 1.0 megohm or greater than 5.2 megohms, an abnormality exists that must be corrected before the unit is returned to the customer.

4.Leakage Current Hot Check (Figure 1-1): Warning: Do not use an isolation transformer during this test. Use a leakagecurrent tester or a metering system that complies with American National Standards Institute (ANIS C101.1, Leakage Current for Appliances), and Underwriters Laboratories (UL Publication UL1410, 59.7).

5.With the unit completely reassembled, plug the AC line cord directly into the power outlet. With the unit’s AC switch first in the ON position and then OFF, measure the current between a known earth ground (metal water pipe, conduit, etc.) and all exposed metal parts, including: antennas, handle brackets, metal cabinets, screwheads and control shafts. The current measured should not exceed 0.5 milliamp. Reverse the powerplug prongs in the AC outlet and repeat the test.

									(READING SHOULD
						LEAKAGE			NOT BE ABOVE
DEVICE						CURRENT				0.5mA)
UNDER						TESTER
TEST
		TEST ALL
	EXPOSED METAL
		SURFACES
2-WIRE CORD
ALSO TEST WITH
PLUG REVERSED
(USING AC ADAPTER											EARTH
PLUG AS REQUIRED)										GROUND

Fig. 1-1 AC Leakage Test

6.Antenna Cold Check:

With the unit’s AC plug disconnected from the AC source, connect an electrical jumper across the two AC prongs. Connect one lead of the ohmmeter to an AC prong. Connect the other lead to the coaxial connector.

7.X-ray Limits:

The picture tube is especially designed to prohibit X-ray emissions. To ensure continued X-ray protection, replace the picture tube only with one that is the same type as the original. Carefully reinstall the picture tube shields and mounting hardware; these also provide X-ray protection.

8.High Voltage Limits:

High voltage must be measured each time servicing is done on the B+, horizontal deflection or high voltage circuits. Correct operation of the X-ray protection

circuits must be reconfirmed whenever they are serviced.

(X-ray protection circuits also may be called “horizontal disable” or “hold-down”.)

Heed the high voltage limits. These include the X–ray Protection Specifications Label, and the Product Safety and X-ray Warning Note on the service data schematic.

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Precautions

1-1 Safety Precautions (Continued)

9.High voltage is maintained within specified limits by close-tolerance, safety-related components and adjustments. If the high voltage exceeds the specified limits, check each of the special components.

10.Design Alteration Warning:

Never alter or add to the mechanical or electrical design of this unit. Example: Do not add auxiliary audio or video connectors. Such alterations might create a safety hazard. Also, any design changes or additions will void the manufacturer’s warranty.

11.Hot Chassis Warning:

Some TV receiver chassis are electrically connected directly to one conductor of the AC power cord. If an isolation transformer is not used, these units may be safely serviced only if the AC power plug is inserted so that the chassis is connected to the ground side of the AC source.

To confirm that the AC power plug is inserted correctly, do the following: Using an AC voltmeter, measure the voltage between the chassis and a known earth ground. If the reading is greater than 1.0V, remove the AC power plug, reverse its polarity and reinsert. Re-measure the voltage between the chassis and ground.

12.Some TV chassis are designed to operate with 85 volts AC between chassis and ground, regardless of the AC plug polarity. These units can be safely serviced only if an isolation transformer inserted between the receiver and the power source.

13.Some TV chassis have a secondary ground system in addition to the main chassis ground. This secondary ground system is not

isolated from the AC power line. The two ground systems are electrically separated by insulating material that must not be defeated or altered.

14.Components, parts and wiring that appear to have overheated or that are otherwise damaged should be replaced with parts that meet the original specifications. Always determine the cause of damage or overheating, and correct any potential hazards.

15.Observe the original lead dress, especially near the following areas: Antenna wiring, sharp edges, and especially the AC and high voltage power supplies. Always inspect for pinched, out-of-place, or frayed wiring. Do not change the spacing between components and the printed circuit board. Check the AC power cord for damage. Make sure that leads and components do not touch thermally hot parts.

16.Picture Tube Implosion Warning:

The picture tube in this receiver employs “integral implosion” protection. To ensure continued implosion protection, make sure that the replacement picture tube is the same as the original.

17.Do not remove, install or handle the picture tube without first putting on shatterproof goggles equipped with side shields. Never handle the picture tube by its neck. Some “in-line” picture tubes are equipped with a permanently attached deflection yoke; do not try to remove such “permanently attached” yokes from the picture tube.

18.Product Safety Notice:

Some electrical and mechanical parts have special safety-related characteristics which might not be obvious from visual inspection. These safety features and the protection they give might be lost if the replacement component differs from the original—even if the replacement is rated for higher voltage, wattage, etc.

Components that are critical for safety are indicated in the circuit diagram by shading,

( ) or ( ).

Use replacement components that have the same ratings, especially for flame resistance and dielectric strength specifications.

A replacement part that does not have the same safety characteristics as the original might create shock, fire or other hazards.

1-2	Samsung Electronics

Precautions

1-2 Servicing Precautions

Warning1: First read the “Safety Precautions” section of this manual. If some unforeseen circumstance creates a conflict betwe en the servicing and safety precautions, always follow the safety precautions.

Warning2: An electrolytic capacitor installed with the wrong polarity might explode.

1.Servicing precautions are printed on the cabinet. Follow them.

2.Always unplug the unit’s AC power cord from the AC power source before attempting to:

(a)Remove or reinstall any component or assembly, (b) Disconnect an electrical plug or connector, (c) Connect a test component in parallel with an electrolytic capacitor.

3.Some components are raised above the printed circuit board for safety. An insulation tube or tape is sometimes used. The internal wiring is sometimes clamped to prevent contact with thermally hot components. Reinstall all such elements to their original position.

4.After servicing, always check that the screws, components and wiring have been correctly reinstalled. Make sure that the portion around the serviced part has not been damaged.

5.Check the insulation between the blades of the AC plug and accessible conductive parts (examples: metal panels, input terminals and earphone jacks).

6.Insulation Checking Procedure: Disconnect the power cord from the AC source and turn the power switch ON. Connect an insulation resistance meter (500V) to the blades of the AC plug.

The insulation resistance between each blade of the AC plug and accessible conductive parts (see above) should be greater than 1 megohm.

7.Never defeat any of the B+ voltage interlocks. Do not apply AC power to the unit (or any of its assemblies) unless all solid-state heat sinks are correctly installed.

8.Always connect a test instrument’s ground lead to the instrument chassis ground before connecting the positive lead; always remove the instrument’s ground lead last.

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1-3

Precautions

1-3 Precautions for Electrostatically Sensitive Devices (ESDs)

1.Some semiconductor (“solid state”) devices are easily damaged by static electricity. Such components are called Electrostatically Sensitive Devices (ESDs); examples include integrated circuits and some field-effect transistors. The following techniques will reduce the occurrence of component damage caused by static electricity.

2.Immediately before handling any semicon ductor components or assemblies, drain the electrostatic charge from your body by touching a known earth ground. Alternatively, wear a discharging wrist-strap device. (Be sure to remove it prior to applying power— this is an electric shock precaution.)

3.After removing an ESD-equipped assembly, place it on a conductive surface such as aluminum foil to prevent accumulation of electrostatic charge.

4.Do not use freon-propelled chemicals. These can generate electrical charges that damage ESDs.

5.Use only a grounded-tip soldering iron when soldering or unsoldering ESDs.

6.Use only an anti-static solder removal device. Many solder removal devices are not rated as “anti-static”; these can accumulate sufficient electrical charge to damage ESDs.

7.Do not remove a replacement ESD from its protective package until you are ready to install it. Most replacement ESDs are packaged with leads that are electrically shorted together by conductive foam, aluminum foil or other conductive materials.

8.Immediately before removing the protective material from the leads of a replacement ESD, touch the protective material to the chassis or circuit assembly into which the device will be installed.

9.Minimize body motions when handling unpackaged replacement ESDs. Motions such as brushing clothes together, or lifting a foot from a carpeted floor can generate enough static electricity to damage an ESD.

1-4	Samsung Electronics

Reference Information

2. Reference Information

2-1 Tables of Abbreviations and Acronyms

Table 2-1 Abbreviations

A	Ampere	MV	Megavolt
Ah	Ampere-hour	MW	Megawatt
Å	Angstrom	MΩ	Megohm
dB	Decibel	m	Meter
dBm	Decibel Referenced to One	µA	Microampere
°C	Milliwatt	µF	Microfarad
	Degree Celsius	µH	Microhenry
°F	Degree Fahrenheit	µm	Micrometer
°K	degree Kelvin	µs	Microsecond
F	Farad	µW	Microwatt
G	Gauss	mA	Milliampere
GHz	Gigahertz	mg	Milligram
g	Gram	mH	Millihenry
H	Henry	mI	Milliliter
Hz	Hertz	mm	Millimeter
h	Hour	ms	Millisecond
ips	Inches Per Second	mV	Millivolt
kWh	Kilowatt-hour	nF	Nanofarad
kg	Kilogram	Ω	Ohm
kHz	Kilohertz	pF	Picofarad
kΩ	Kilohm	Ib	Pound
km	Kilometer	rpm	Revolutions Per Minute
km/h	Kilometer Per Hour	rps	Revolutions Per Second
kV	Kilovolt	s	Second (Time)
kVA	Kilovolt-ampere	V	Volt
kW	Kilowatt	VA	Volt-ampere
I	Liter	W	Watt
MHz	Megahertz	Wh	Watt-hour

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Reference Information

Table 2-2 Table of Acronyms

ABL	Automatic Brightness Limiter	I/O	Input/output
AC	Alternating Current	L	Left
ACC	Automatic Chroma Control	L	Low
AF	Audio Frequency	LED	Light Emitting Diode
AFC	Automatic Frequency Control	LF	Low Frequency
AFT	Automatic Fine Tuning	MOSFET	Metal-Oxide-Semiconductor-Field-Effect-Tr
AGC	Automatic Gain Control	MTS	Multi-channel Television Sound
AM	Amplitude Modulation	NAB	National Association of Broadcasters
ANSI	American National Standards Institute	NEC	National Electric Code
APC	Automatic Phase Control	NTSC	National Television Systems Committee
APC	Automatic Picture Control	OSD	On Screen Display
A/V	Audio-Video	PCB	Printed Circuit Board
AVC	Automatic Volume Control	PLL	Phase-Locked Loop
BAL	Balance	PWM	Pulse Width Modulation
BPF	Bandpass Filter	QIF	Quadrature Intermediate Frequency
B-Y	Blue-Y	R	Right
CATV	Community Antenna Television (Cable TV)	RC	Resistor & Capacitor
CB	Citizens Band	RF	Radio Frequency
CCD	Charge Coupled Device	R-Y	Red-Y
CCTV	Closed Circuit Television	SAP	Second Audio Program
Ch	Channel	SAW	Surface Acoustic Wave(Filter)
CRT	Cathode Ray Tube	SIF	Sound Intermediate Frequency
CW	Continuous Wave	SMPS	Switching Mode Power Supply
DC	Direct Current	S/N	Signal/Noise
DVM	Digital Volt Meter	SW	Switch
EIA	Electronics Industries Association	TP	Test Point
ESD	Electrostatic Discharge	TTL	Transistor Transistor Logic
ESD	Electrostatically Sensitive Device	TV	Television
FBP	Feedback Pulse	UHF	Ultra High Frequency
FBT	Flyback Transformer	UL	Underwriters Laboratories
FF	Flip-Flop	UV	Ultraviolet
FM	Frequency Modulation	VCD	Variable-Capacitance Diode
FS	Fail Safe	VCO	Voltage Controlled Oscillator
GND	Ground	VCXO	Voltage Controlled Crystal Oscillator
G-Y	Green-Y	VHF	Very High Frequency
H	High	VIF	Video Intermediate Frequency
HF	High-Frequency	VR	Variable Resistor
HI-FI	High Fidelity	VTR	Video Tape Recorder
IC	Inductance-Capacitance	VTVM	Vacuum Tube Voltmeter
IC	Integrated Circuit	TR	Transistor
IF	Intermediate Frequency

2-2	Samsung Electronics

Reference Information

2-2 IC Line Up

Table 2 - 3 IC Line - Up

	NO	BOARD	LOC. NO	SPEC	DESCRIPTION	REMARK
			IC201S	VDP3112B	Video Processor	Refer to Table 2-3-1
			IC601	MSP3440D	NTSC Sound Processor
			IC901	SDA555X	MICOM, Caption (MTP)
			IC902	KS24L161	EEPROM
			IC602	TDA7297	Audio AMP	Refer to Table 2-3-2
			HIC201	DRGB001	RGB Drive AMP Hybrid IC	VM Option
			IC301	LA7845	Vertical IC
			Q401	KSD5703	Horizontal Drive IC	DH01
			D409	FMP-3FU
			IC401	KA393	E/W Drive IC
			Q404	IRF620
			IC801S	3S1265R	SPS Controllor	Option
	1	MAIN	D801S	RBV606	Bridge Diode
			PC801S	PC123Y	Photo Coupler
			IC805	KA78R05	5V Controlled Regulator
			D806	FML-G12S	Rectifier Diode	DDR01
			D807
			D805	FMG-G26S
			IC804	KA7806	6V Regulator
			IC803	KA78R08	8V Controlled Regulator
			IC903	KA78RM33	3.3V Regulator
			IC904	KIA7025AP	MICOM Reset IC
			Q909	2N7000	IIC Level Shifter
			Q910
			TU01	TCPN3081PA09A(S)	Main Tuner with IF Block
			D813	FML-G12S	Rectifier Diode

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2-3

Reference Information

Table 2 - 3 IC Line - Up

NO	BOARD	LOC. NO	SPEC	DESCRIPTION	REMARK
		IC501
			TDA6101Q	Video Output AMP R.G.B Drive
		IC502
	CRT	IC503
2
		QF04	2SC2344	Push-Pull (VM)	Option
		QF05	2SA1011
3	V-S/W	ICS01	TEA6425	Video Switching IC with Adder Output	Option
4	PIP	ICP01	SDA9388X	High-end Picture-In Picture IC	Option

Table 2-3-1 VIDEO IC

SPEC	FUNCTION	REMARK
VDP3108B	Basic 1H Comb Filter
VDP3130Y	2H Comb Filter, DVD Input

Table 2-3-2 SOUND AMP

SPEC		FUNCTION	REMARK
TDA7297	7W x 2CH,	10W x 2CH
TDA7266S	3W x 2CH,	5W x 2CH

2-4	Samsung Electronics

Specifications

3. Specifications

	Television	Multi	NTSC-M, PAL N.M	Option
	System
	Antena Input		75ohms, Coaxial Cable
		Consumption	160W (Applied When 29” Flat)	Option
	Power	Requirements	Free Volts(100V-240Volts)	Option
			Free Voltage	Not Present R815
		Frequency	50/60Hz
			15W x 2CH
		Output
			10W x 2CH
	Sound		5W x 2CH
			Vitual Dolby	Option
		Effect
			Turbo Sound
			Pseudo Stereo
			RCA Input
		Front
			S-VHS	Option
		(AV2)
			Head-Phone
	Jacks
			2 AV Input
		Back
			DVD Input(YPbPr)	Option
			AV2 Monitor Audio Output	Option
			S-VHS	Option

Specifications are subject to change.

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Alignment and Adjustments

4. Alignment and Adjustments

4-1 General Alignment Instructions

1.Usually, a color TV-VCR needs only slight touch-up adjustment upon installation. Check the basic characteristics such as height, horizontal and vertical sync and focus.

2.Observe the picture for good black and white details. There should be objectionable color shading; if color shading is present, demagnetize, perform purity and convergence adjustments described below.

3.Use the specified test equipment or its equivalent.

4.Correct impedance matching is essential.

5.Avoid overload. Excessive signal from a sweep generator might overload the front-end of the TV. When inserting signal markers, do not allow the marker generator to distort test results.

6.Connect the TV only to an AC power source with voltage and frequency as specified on the backcover nameplate.

7.Do not attempt to connect or disconnect any wires while the TV is turned on. Make sure that the power cord is disconnected before replacing any parts.

8.To protect against shock hazard, use an isolation transformer.

4-2 Automatic Degaussing

A degaussing coil is mounted around the picture tube, so that external degaussing after moving the TV should be unnecessary. But the receiver must be properly degaussed upon installation.

The degaussing coil operates for about 1 second after the power is switched ON. If the set is moved or turned in a different direction, the power should be OFF for at least 10 minutes.

If the chassis or parts of the cabinet become magnetized, poor color purity will result. If this happens, use an external degaussing coil. Slowly move the degaussing coil around the faceplate of the picture tube and the sides and front of the receiver. Slowly withdraw the coil to a distance of about 6 feet before turning power OFF.

If color shading persists, perform the following Color purity and Convergence adjustments.

4-3 High Voltage Check

CAUTION : There is no high voltage adjustment on this chassis. The B+ power supply should be +135 volts (with full colorbar input and normal picture level).

1.Connect a digital voltmeter to the second anode of the picture tube.

2.Turn on the TV. Set the Brightness and Contrast controls to minimum (zero beam current).

3.Adjust the Brightness and contrast controls to both extremes. Ensure that the high voltage does not exceed 30 KV under any conditions.

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4-1

Alignment and Adjustments

4-4 FOCUS Adjustment

1.Input a black and white signal.

2.Adjust the tuning control for the clearest picture.

3.Adjust the FOCUS control for well defined scanning lines in the center area of the screen.

4-5 SCREEN Adjustment

1.Input Toshiba Pattern

2.Enter “Service Mode”.(Refer to “4-8-1 Service Mode”)

3.Select “G2-Adjust”.

4.Set the values as below.

Table 1. Screen Adjustment Table

No	INCH / CRT	IBRM	WDRV	CDL	COLR G B	REGION
					(Smallest Value)
1	14” / SDI	205	35	100	100
2	15PF / SDI	220	35	180	100
3	21” 1.7R / SDI	220	35	180	100
4	20V 10.0R/SDI	205	35	115	120	Normal
5	21PF / TSB	220	35	180	65
6	21PF / LG	230	35	230	65
7	21PF / SDI	220	35	210	65
8	25PF / SDI	210	35	160	120
9	27V 1.3R / SDI	210	35	170	150
10	27V 1.0R/SDI	210	35	150	180
11	25V 1.0R/SDI	210	35	150	180
12	23V 1.3R/SDI	205	35	120	140

5.Turn the SCREEN VR until “MRCR G B” and “MRWDG” are green and those value are about 100. (The incorrect SCREEN Voltage may result that “MRCR G B” and “MRWDG” should be red)

4-2	Samsung Electronics

Alignment and Adjustments

4-6 E2PROM (IC902) Replacement

1.When IC902 is replaced, all adjustment data revert to the initial values. So, all adjustment values when servicing should be readjusted.

2.After IC902 is replaced, connect the AC power supply cord.

3.Turn the power switch ON.

4.In stand-by, warm up the TV for at least 10 seconds.

5.Power on the TV.

4-7 White Balance Adjustment

■Equipment : Color-Analyzer (CA-100)

■Input Signal : Pattern signal (Toshiba pattern)

1.Select STANDARD from the menu.

2.Input an 100% White pattern.

3.Enter the “Service Mode”. (Refer to “4-8 Service Mode”)

4.Warm up the TV set at least for 30 minutes.

5.Input a Toshiba pattern signal.

6.Enter the “Video Adjust1”.

-Adjust “Sub Contrast” so that Y (luminance) becomes 65 ft ± 3.

-Use “Red Drive” and “ Blue Drive” to adjust High-Light (x : 265, y : 265)

-Adjust “Sub Bright” so that Y (luminance) becomes 1.2ft ± 0.3.

-Use “Red Cutoff” and “Blue Cutoff” to adjust Low-Light (x : 265, y : 265).

7.Adjust CA-100 so that the final adjustment value can be fixed.

8.Use the Channel Up/Down (▲/▼) buttons to move the cursor on the adjustment modes.

9.Use the Volume +/- buttons to change the adjustment value.

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4-3

Alignment and Adjustments

4-8 Factory Adjustment

4-8-1 Service Mode

1.To enter the “Service Mode”, Press the remote-control keys in this sequence : - If you do not have Factory remote-control

PICTURE OFF

MUTE

1,8,2

PICTURE ON

- If you have Factory remote-control

PICTURE ON

DISPLAY (

)

FACTORY

2. After the Service Mode is entered, the initial screen is as shown in the figure below.

xx xx xx *	These hexa digits are check sum value which
	* depends on the MICOM version.
	If check sum value is changed, the value of
	E2PROM Data newly initialed.

3.Use the Channel Up/Down buttons to move the cursor in the adjustment parameters.

Note :

-When CRT, CRT PCB, FBT, E2PROM (sometimes MICOM) is replaced, the adjustment values should be controlled.

-After the Service adjustment is completed, Do not select “Reset” in the service mode menu. (After above procedure is done, power is on initially and the “Plug and Play” will be operated.)

4-4	Samsung Electronics

Alignment and Adjustments

4-8-2 Deflection (Memory Data)

- SIM408A USA, LATIN FACTORY (VDP IC VDP3108B)

4-8-2(A) GEOMETRIC ADJUSTMENT VALUE

		INCH		27V 1.3R	23V 1.3R	25V 1R	27V 1R	20V 1R	15" FLAT
						TXK2550	TXK2750	TXK2060
	Model					TXK2554
				TXK2767	CL25D4W			TXK2066	CT-15A8
						TXK2566	TXK2754
								TXK2067
						TXK2567
						CL663BW
DEFLECTION		INIT
H Bow		0	FIX	0	0	0	0	0	0
H Angle		0	FIX	0	0	0	0	0	0
H Dscc		0	FIX	3	3	3	3	3	3
V SHIFT		-40	Control	-27	-24	-18	-18	-40	-35
V AMP		5	Control	-50	-41	18	18	5	20
V SLOPE		-2	Control	-7	-4	-4	-4	-2	-4
V SC		-7	FIX	0	-13	-13	-13	-13	-13
H EW		64	Control	10	-37	64(FIX)	64(FIX)	64(FIX)	64(FIX)
H TRAPEZIUM		-20	Control	-82	-48	-20(FIX)	-20(FIX)	-20(FIX)	-20(FIX)
H PARABOLA		-13	Control	-89	-44	-13(FIX)	-13(FIX)	-13(FIX)	-13(FIX)
H SYMMETRY		13	FIX	13	13	13	13	13	13
H CORNER		15	Control	0	69	69(FIX)	69(FIX)	69(FIX)	69(FIX)
H SHIFT		4	Control	0	8	13	13	4	13
PIP CONTRAST			FIX	0	0	0	0	0	0
PIP TINT			FIX	0	0	0	0	0	0
PIP PAL V.POS			FIX	12	12	12	12	12	12
PIP NTSC V.POS			FIX	12	12	12	12	12	12
PIP H.POS			FIX	12	12	12	12	12	12

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Alignment and Adjustments

4-8-2(B) SCREEN CHANGE (I2C BUS GEOMETRIC ADJUSTMENT)

1 V Shift

6 V Amp

2 V Slope

7 V SC

3 H EW

4 H Parabola

5 H Corner

8	H Trapizium

9	H Symmetry

10 H Shift

4-6

Samsung Electronics

Alignment and Adjustments

4-8-2(C) VIDEO ADJUST 1

	INCH			27V 1.3R	23V 1.3R	25V 1R	27V 1R	20V 1R	15" FLAT
						TXK2550		TXK2060
	Model			TXK2767	CL25D4W	TXK2554	TXK2750		CT-15A8
								TXK2066
						TXK2566	TXK2754
								TXK2067
						TXK2567
						CL663BW
VIDEO ADJUST1		INIT
RED CUT OFF		127	Control	127	127	127	127	127	127
GREEN CUT OFF		127	FIX	127	127	127	127	127	127
BLUE CUT OFF		127	Control	127	127	127	127	127	127
RED DRIVE		127	Control	150	127	127	127	127	127
GREEN DRIVE		127	FIX	127	127	127	127	127	127
BLUE DRIVE		127	Control	170	127	127	127	127	127
SUB BRIGHT		110	Control	100	110	100	100	114	110
SUB CONTRAST		52	Control	52	52	52	52	52	52
SUB COLOR		27	FIX	50	50	50	50	50	67
SUB TINT		30	FIX	70	70	70	70	30	15
BCL THRESHOLD		62	FIX	60	54	58	58	70	40
BCLGAIN		8	FIX	8	8	8	8	8	8
BCL TIME		13	FIX	10	10	10	10	10	13
DVD SUB TINT		90	FIX	100	100	100	100	100	120
N. YC DELAY		0	FIX	3	3	3	3	3	4

Note 1. Beam Control Limit Characteristic

beam
MIN
1.8mA
1.6mA	MAX
BCL THESHOLD	BCL GAIN
WDRGB
50	IRE

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4-7

Alignment and Adjustments

4-8-2(D) VIDEO 2 ADJUST

INCH			27V 1.3R	23V 1.3R	25V 1R	27V 1R	20V 1R	15" FLAT
					TXK2550	TXK2750	TXK2060
Model			TXK2767	CL25D4W	TXK2554			CT-15A8
							TXK2066
					TXK2566	TXK2754
							TXK2067
					TXK2567
					CL663BW
VIDEO ADJUST2	INIT
B STRETCH-BTHR	50	FIX	50	50	50	50	50	50
B DTRETCH-BTLT	8	FIX	8	8	8	8	8	8
B STERTCH-BAM	4	FIX	4	4	4	4	4	4
CORING	31	FIX	31	31	31	31	31	31
NTSC COMB FILTER	1	FIX	1	1	1	1	1	1
RGB BRIGHT	0	FIX	0	0	0	0	0	0
RG B CONTRAST	0	FIX	0	0	0	0	0	0
EHT TIME	0	FIX	0	0	0	0	0	0
EHT VERTICAL		FIX	60	60	60	60	60	60
DTI CORING		FIX	0	0	0	0	0	0
DTI GAIN		FIX	1	1	1	1	1	1
DTI BAND		FIX	1	1	1	1	1	1
EHT OFFSET		FIX	0	0	0	0	0	0
EHT HORIZONTAL		FIX	0	0	0	0	0	0

4-8-2(E) VIDEO 3 ADJUST

INCH			27V 1.3R	23V 1.3R	25V 1R	27V 1R	20V 1R	15" FLAT
					TXK2550		TXK2060
Model					TXK2554	TXK2750
			TXK2767	CL25D4W			TXK2066	CT-15A8
					TXK2566	TXK2754
							TXK2067
					TXK2567
					CL663BW
VIDEO ADJUST3	INIT
PEAK WHITE LIMLT	255	FIX	255	255	255	255	255	255
SOFT LIMIT SLOPE B	4	FIX	4	4	4	4	4	4
HARD LIMIT	255	FIX	255	255	255	255	255	255
MODULATION ON/OFF	0	FIX	0	0	0	0	0	0
A TILT POINT	0	FIX	0	0	0	0	0	0
B TILT POINT	0	FIX	114	114	114	114	114	114
GAIN 1 (VIDEO)		FIX	11	11	11	11	11	11
DELAY 1 (VIDEO)		FIX	3	3	3	3	3	3
PEAK VIDEO REF		FIX	0	0	0	0	0	0
PEAK VIDEO GAIN		FIX	0	0	0	0	0	0
LIMIT VALUE		FIX	74	74	74	74	74	74
VELOCITY DELAY		FIX	7	7	7	7	7	7
VELOCITY CORING		FIX	10	10	10	10	10	10
ACC-REF	20	FIX	20	20	20	20	20	20
ACCR	21	FIX	21	21	21	21	21	21

4-8	Samsung Electronics