HYUNDAI F770D service manual

F770D (C17F05071)

Multiscanning Color Monitor

TECHNICAL SERVICE MANUAL

F770D Technical Service Manual

Safety Precaution

WARNING

Service should not be attempted by anyone unfamiliar with the necessary precautions on this monitor. The followings are the necessary precautions to be observed before servicing.

1.Always discharge the high voltage to the CRT conductive coating before handling the CRT. The picture tube is highly evacuated and if broken, glass fragments will be violently exploded. Use shatter proof goggles and keep picture tube away from the bare body while handling.

2.When replacing a 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.

3.Before returning the monitor to the customer, always perform an AC leakage current check on the exposed metallic parts of the cabinet, such as signal connectors, terminals, screw heads, metal overlays, control shafts etc, to be sure the monitor is safe to operate without danger of electrical shock. Plug the AC line cord directly into a AC outlet (do not use a line isolation trasformer during

this check.). Use an AC voltmeter having 1500 ohm per volt or more sensitivity in the following manner : Connect 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 capacitor. Reverse the AC plug at the AC outlet and repeat AC voltage measurements for each exposed metallic part. The Voltage must not exceed 0.3 volts RMS. This corresponds to 0.2 milliamp AC. Any value exceeded this limit constitutes a potential shock hazard and must be corrected immediately.

AC VOLTMETER

Good earth ground such as the water pipe, conduit, etc

0.15µF
	Place this probe
1500 ohm	on each exposed
	metallic part.
10 WATT	0.15µF

INSTRUCTIONS TO USER

This equipment generates and uses radio frequency energy and if not installed and used properly, that is, in strict accordance with the manufacturer's instruction, may cause interference to radio and television. It has been tested and found to comply with the limits for the specifications in Subpart J of Part 15 FCC Rules, which are designed to provide reasonable protection against such interference in a residential installation. However, there is no guarantee that interference will not occur in a particular installation.

If this equipment does cause interference to radio or television reception, which can be determined by turning the equipment off and on, the user is encouraged to try to correct the interference by one or more of the following measures.

•reorient the receiving antenna

•relocate the computer with respect to the receiver

•plug the computer into a different outlet so that computer and receiver are on different branch circuits.

--1--

X-Ray Radiation Precaution

1.Excessive high voltage can produce potentially hazardous X-RAY RADIATION. To avoid

such hazards, the high voltage must be under the specified limit. The nominal value of the high

voltage of this monitor is 26KV1.0KV at zero beam current(minimun brightness) under a 120V AC power source. The high voltage must not(under any circumstances) exceed30KV. Each time a monitor requires servicing, the high voltage should be checked.

It is recommended the high voltage be recorded as a part of the service record. It is important to use an accurate and reliable high voltage meter.

2.This monitor is equipped with a protection circuit which prevents the monitor from producing excessively high voltage. Each time the monitor is serviced, the protection circuit must be checked to determine that the circuit is properly functioning.

3.The only source of X-RAY RADIATION in this monitor 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 monitor have special safety-related characteristics for X-RAY RADIATION protection.

For continued safety, parts replacement should be undertaken only after referring to the product safety notice.

RODUCT SAFETY NOTICE

Many electrical and mechanical parts in this monitor have special safety-related characteristics. These characteristics are often not evident from visual inspection.

Replacement parts which have these special safety characteristics are identified in this manual; electrical components having such features identified by " ! " in the replacement parts list and schematic diagram.

For continued protection, replacement parts must be identical to those used in the original circuit. The use of substitute replacement parts which dose not have the same safety characteristics as the factory recommended replacement parts shown in this service manual, may create shock, fire, X-RAY RADIATION or other hazards.

PRODUCT CDRH NOTICE

Electrical potentiometers which is marked as caution " ! " in parts list are crititial components of safety & CDRH.

Therefore, for continued protection, replacements parts must be used it which is used in original PCB ASS’Y.

--2--

F770D Technical Service Manual

General Inforormation

1.Description

This 17" (16" viewable) color display monitor is operated in R, G, B, drive mode input.

2.Operating instructions

2-1. Front

Menu, Select,Down DPMS(Power)LED, Soft Power.

2-2. Rear

Input connection AC & SIGNAL CABLE

2-3 Service Instruction(internal controls)

H-Center , H/V Focus

2-4. OSD Controls

Brightness/Contrast, H/V-Position, H/V-Size, Pincushion/Trapezoid, Pin Balance, Parallel, Rotation, H/V Moire, Degauss, Color Control, Information, Language, OSD H/V Position ,Recall

3.Electrical Characteristics

3-1. Power supply

Input Voltage : 100-240 V AC Input Current : 1.5A Max. Input Frequency : 50 - 60Hz Power Consumption : 75W Max.

3-2. Video input signal

Input : 0.7 Vp-p analog signal(at 75 ohm terminated to ground) Polarity : Positive

Rise/Fall time : < 5ns

3-3. Horizontal Synchronization Signal

Level : TTL High : 2.4V min Low : 0.4V max

Polarity : Negative or Positive Frequency : 30kHz - 70kHz

Timing Limits : Pulse width (0.1µs Thp 6µs)

3-4. Vertical Synchronization Signal

Level : TTL High : 2.0V min Low : 0.4V max

Polarity : Negative or Positive Frequency : 50Hz - 150Hz

Timing Limits : Pulse width (8µs Tvp 2.048ms)

--3--

Control Desciption

Front View

Power LED Power Switch

Video Input Signal

Recommended signals are shown below.

63

• Video Signal

700mV

Video Level : 0 to 700mV

62

Polarty : Positive

61

• Signal: 64 level gray scale

Video Input : RGB separated

60

• Linear stepping:

Analog level

(11.1mV-64 Steps)

Sync input : H-Sync ; TTL level

59

V-Sync ; TTL level

• Waveform

Video input(R, G, B)

4

3

2

1

0

• H-Sync

• V-Sync

ACTIVE (4)

ACTIVE (4)

Front Porch	Period (T1)
(T5)	Back Porch (T3)
	Sync Width (T2)

	Front Porch (T5)	Back Porch (T3)
	Period (T1)
		Sync Width (T2)

--4--

F770D Technical Service Manual

• Timing Table

	Horizontal	Dot	720	640	640	800	800	800	1024	1024
	Frequency	kHz	31.469	43.269	50.625	46.875	53.674	63.920	60.023	68.677
	Period(T1)	µs	31.778	23.111	19.752	21.333	18.631	15.645	16.660	14.561
	Sync Width(T2)	µs	3.813	1.556	1.580	1.616	1.138	1.185	1.219	1.016
	Back Porch(T3)	µs	1.907	2.222	1.975	3.232	2.702	2.015	2.235	2.201
	Active(T4)	µs	25.422	17.778	15.802	16.162	14.222	11.852	13.003	10.836
	Front Porch(T5)	µs	0.636	1.556	0.395	0.323	0.569	0.593	0.203	0.508
	Vertical	Line	400	480	480	600	600	600	768	768
	Frequency	Hz	70.080	85.008	100.05	75.000	85.061	100.03	75.029	84.997
	Period(T1)	ms	14.268	11.764	9.995	13.333	11.756	9.997	13.328	11.765
	Sync Width(T2)	ms	0.064	0.069	0.059	0.064	0.056	0.063	0.050	0.044
	Back Porch(T3)	ms	1.080	0.570	0.435	0.448	0.503	0.501	0.466	0.524
	Active(T4)	ms	12.711	11.093	9.481	12.800	11.179	9.387	12.795	11.183
	Front Porch(T5)	ms	0.413	0.023	0.020	0.021	0.019	0.047	0.017	0.015
	Interlaced	ms	1.557	0.671	0.514	0.553	0.577	0.610	0.533	0.582
	Sync Polar	H	-	-	-	+	+	+	+	+
		V	+	-	-	+	+	+	+	+
	Interlaced	Y/N	N	N	N	N	N	N	N	N

The monitor is compatible with additional modes within the specified frequency ranges provided that they are different at least for one of the following :

Horizontal Freq.: 1.0kHz Vertical Freq.: 1Hz

Note: Even if the monitor detects the input timing as a factory preset mode, the size

Note: Even if the monitor detects the input timing as a factory preset mode, the size and position and position may not be able to be set as desired. Check the input timings are under the specifications and may not be able to be set as desired. Check the input timings are under the specifications and adjustthetheimageasasyouyouwantwant. .

For better quality of display image, use the timing and polarity shown in the table above. Please see

For better quality of display image, use the timing and polarity shown in the table above. Please see your video your video card user's guide to ensure compatibility.

card user's guide to ensure compatibility.

--5--

Video Input Terminal

A 15 Pin D-sub male connector is used as the input signal connector.

Pin and input signals are shown in the table below.

Pin Description

SIGNAL	SEPERATE	COMPOSITE
PIN NO.	SYNC	SYNC
1	RED	RED
2	GREEN	GREEN
3	BLUE	BLUE
4	N.C	N.C
5	DDC RETURN	DDC RETURN
6	RED GROUND	RED GROUND
7	GREEN GROUND	GREEN GROUND
8	BLUE GROUND	BLUE GROUND
9	+5(NOT USED)	+5(NOT USED)
10	LOGIC GROUND	LOGIC GROUND
11	N.C	N.C
12	SDA	SDA
13	H-SYNC(TTL)	(H+V) SYNC
14	V-SYNC(VCLK)	VCLK
15	SCL	SCL

D-Sub male connector

1 2 3 4 5

6 7 8 9 10

11 12 13 14 15

--6--

F770D Technical Service Manual

Connecting With External Equipment

Cautions

Be sure to turn off the power of your computer before connecting the monitor.

--7--

Theory of Operation

1.Power Supply

The AC line voltage range is from 100V to 240V. The SMPS has +80V, +55V, -12V, +7.0V, +14V, +5V

The conducted noise is filtered by X(CP01, CP04) and Y (CP02, CP03, CP11)capacitors and a common mode line filter (LP02).

The input rectifier (DP01 DP04) converts the AC line voltage into a DC voltage to power the SMPS.

The UC3843 (ICP01) drives the power FET(QP04) according to the PWM signals generated by the RT and CT (RP07, CP10) connected pin 4 of ICP01.

The ICP01 is an integrated current mode PWM.

It consists of an oscillator, error amplifier, current sense comparator, under voltage lock-out and an MOSFET drive stage.

The switching frequency is locked to horizontal scan frequency by horizontal flyback pulse. When the monitor is in OFF mode with no pulsed syncs. QP05 and QP07 is turned off. The total power consumption must be less than 5W in off mode.

2.DPMS and Self test mode

The power supply supports the DPMS function. Its operation is shown in the table below.

	MODE			BRI	MCU	MCU	QP07		7.0V	REMARK
		H-SYNC	V-SYNC	MCU				14V
					PIN 9	PIN 10
				PIN35
	NORMAL	O	O	CONTROL	H	H	ON	14V	7.0V
	SELFTEST	X	X	5 V	H	H	ON	14V	7.0V
	STAND-BY	X	O	0 V	L	H	OFF	0V	7.0V
	SUSPEND	O	X	0 V	L	H	OFF	0V	7.0V
	OFF	X	X	0 V	L	L	OFF	0V	2.3V

3. Signal Processing and MCU Control

The X-TAL resonates at 12MHz.

When the H and V sync or TTL composite sync are input to MCU, MCU can measures the H and V frequency to detect the video mode.

MCU has digital to analog converter(DACS) control function like ABL, H-LIN rotation, brightness. and MCU can control , Recall, H/V-Size, H/V-Position, Pincushion/Trapezoide, Parallel/Pin Balance, H/V Moire, Color Control, Information, Language, Soft Power by I2C BUS Line.

The operation of MCU is shown in the table below.

H-FREQ		H-LIN1	H-LIN2	H-LIN3	REMARK
(kHz)		PIN 30	PIN 29	PIN 28
31 < H	33	L	L	L
33.1 < H	36	L	L	H
36.1 < H	41	L	H	H
41.1 < H	45	H	L	L
45.1 < H	52	H	L	L
52.1 < H	59.0	H	L	H
59.1< H	62.0	H	H	L
62.1< H	66.0	H	H	H
66.1< H	69.0	H	H	H

--8--

F770D Technical Service Manual

4. Horizontal Deflection

TDA9116 is an I2C autosync deflection controller for H/V sync and drive processing. All functions are controlled by I2C bus.

When H-Sync is applied, the internal oscillator is automatically locked. The duty-cycle of H-output pulse Pin 8/26 is variable by frequency.

QH08 and TH01 are used to drive the H-output transistor (QH09). QH09 is turned on, it conducts current through the deflection yoke on the right hand side of the screen.

This current comes from the S correction capacitors (CH27, CH29, CH32, CH34), which have a charge equal to the effective supply voltage.

When the QH09 is opened up, the damper diode(DH12) allows current for left hand side of the screen to flow back through the deflection yoke to the S capacitors.

The flyback capacitor (CH23) determines the size and length of the flyback pulse. The S capacitors correct outside versus center linearity in horizontal scan. THERE FETs (QH11, QH12, QH13) select the value of S capacitors.

H-centering is controlled by a switch(SWH01). The switch selects DC offset current flow through the yoke.

A diode modulator is used to control the E-W correction and H-size. ICH01 generates the E-W parabora wave using vertical amp.

A power buffer (QH02, QH03) drives the diode modulator.

In order to keep the high voltage constant independent of the horizontal scan frequency, the supply voltage of FBT must increase with increasing scan frequency proportionally. A step-up mode DC-DC converter with PWM is used to realize this demand.

ICH01 compares high-voltage feedback with reference voltage. Its output pulse switches a FET(QH07). To adjust the high voltage, TDA9116(ICH01) has a control terminal (Pin14).

5.Vertical Deflection

In vertical section of TDA9116/TDA9302H there is auto-sync processing.

The vertical output stage consists of a power OP-AMP with extra flyback grnerator. TDA4866/TDA9302(ICV01) is used as vertical output stage.

6.X-Ray Protection and Beam Current Limiting.

A failure in the horizontal scan control section could cause a dangerous situation; the high voltage might rise to an unacceptable high level. When the flyback voltage rise to unacceptable level, the pin25 of ICH01 detects these states over 6.2V TDA9116/over 8.6V TDA9116

It causes the H-drive stage and oscillator to be turned off. Then high voltage is shut down until the power switch is on.

The average anode current is measured at lower side of the High Voltage winding of the FBT. The anode current flows through Connectors(CON04.CNC01) connected ICC01(KA2500) and through RM07 Connected ICM01 Pin38. and ABL is controlled by ICC01.

7.Video Amplifier and OSD Interface

KA2500(ICC01) is a Very High Freguncy video amplifier with three matched video amplifiers, OSD Contrast Control SDA, SCL,OSD Interface, OSD BLK drive controls, blanking gate and clamp gate. H-blank signal is applied to Pin 19. During blanking all three outputs are thrown to the pedestal level. An inserted H-sync is used to a clamp signal.

The signal is applied to ICC01 Pin 18.

Three OSD inputs (Pin 1,2,3 of ICC01) are TTL compatible and typical bandwidth is 80MHz. A fast commutate pin is provided to select either the video or the OSD inputs as a source for amplification.

OSD contrast control is made by controlling simultaneously the gain of three internal variable gain amplifiers through the I2C bus interface. MTV021 is designed for monitor application to display built-in characters or fonts on to monitor screen.

The display operation occurs by transferring data and control information from the MCU to RAM through a serial data interface.

The output stage is made of 3-channel power amplifier (ICC03, LM2437). The output is capable of 40 Volts swing in less than 11 Sec?

The three cathodes are AC coupled to the video amplifiers. The DC level on each cathode is set by a cut-off amplifier and clamp diode. The value of the DC voltage is adjusted by DACS.

--9--

Visual Characteristics

1.Test condition

•Resolution : Any of Preset modes

•Input level : 700mV

•Pattern : Central White box covering 20% of the data area

•Brightness Control : Default position (cut off)

•Contrast Control : Adjust to 100 cd/m2 of luminance (Center of the white field)

•Image duty cycle : 10% to 90%

•Magentic field : Horizontal = 0.3 Gauss

Vertical = 0.4 Gauss

• Supply Voltage : 100 240 VAC

•Operating Condition Temperature (0 to 40)°C

Humidity (35 to 80)% (W/O condensation) Altitude (0 to 3000)m

•Stroage condition Temperature (-20 to 60)°C

Humidity (5 to 85)% (W/O condensation) Altitude (0 to 15,000)m

2.Display Centering

The following describes the pattern for this test. Basically it is composed by a single pixel white line around the perimeter of the data area, with marks for the horizontal and vertical axes, the background is black.

The display centering shall be met as following specification at adjustied centering function (user’s control)

[L-R]	4mm	[U-D]	4mm
		U
L			R
		D	Display Centering

3. Tilt

The maximum variation of the display rotation(tilt) shall be with in 2.0 mm based on the following formula.

[Ly-Ry]2.0mm

Ly

Ry

Data Area Hor.ax.

--10--

F770D Technical Service Manual

4. Geometric Distortion

All kind of Geometric Distortion

(Pincushion, Barallel, Parallelogram and Trapezoid) shall be with in 2mm boundary (to tolerance frame) Refer to belows tolerance frame.

A 2mm B 2mm

The tolerance frame sides are parallel to the window of enclosure axes.

B

Data Area

A

5. Linearity

The linearity of an image displayed on the CRT must meet the following requirements, with reference to figure for both X and Y axis.

Y1

.

.

.

.

.

.

.

.

Y12

X1 . . . . . . . . X16

• Formula : XMaxXMin 100 =			6%	overall
	XMax+XMin
	XMaxXMin
		100 =	5%	adjacent cells

XMax+XMin

• Where : X1=X2=....X16

Y1=Y2=....Y12

6. Misconvergence

The display must confirm to all following requirements: Maximum convergence error.

Area	Horiz. Direction	Vert. Direction
A	0.3mm	0.3mm
Central circle field
of(229) mm diameter
B	0.4mm	0.4mm
All screen Area (305 229)
except Area A

--11--

The maximum convergence error shall be measures for a white spot of line, and represents the maximum distance between the energy centers of any two primary colors.

	305mm
B		B
	A	229mm
B		B
Active Area

Power Management System

The automatic power management function saves electricity and reduces heat. Used in conjunction with a PC having Power Management function, or a PC running Screen Blanking software, this monitor automatically reduces its power consumption when the PC is not in use.

This monitor runs in four states:ON(Normal Operating), Stand-by(No Video Signal), Suspend(Minimum Power for Quick Recovery) and OFF(Non-Operating).

This monitor is in complaince with U.S EPA Energy Star and NUTEK requirements.

Please refer to the following specifications.

	State		Signals		Power	Recovery	LED
		H-Sync	V-Sync	Video	consumption	time	Description
	On	pulses	pulses	active	75W	-	Green
	Stand by	no pulse	pulses	blanked	Less Than	within
					5W	3 sec
	Suspend	pulses	no pulse	blanked	Less than	within	Orange
					5W	3 sec
	Off	no pulse	no pulse	blanked	Less than	within
					5W	3 sec
	SW Off	no pulse	no pulse	blanked	Less than	within	Off
					1W	3 sec

--12--

F770D Technical Service Manual

Trouble Shooting

1. Introduction

This trouble shooting guide is arranged by fault conditions. Following each fault condition is a check for a signal on condition to be answered YES or NO.

For NO answer proceed to the right and continue until the fault is located. For a YES answer continue in the left column to the next numbered check. Again followed this procedure until the fault is located.

2. Trouble shooting procedure

When Troubleshooting this monitor, some precaution should be observed.

Use a high quality isolation tranformer is capable of providing 3 Amps or more.

Never connect primary ground and secondary ground together including use with an isolation transformer.

Measure high voltage with respect to chassing ground only, and with a high impedance prove of 1000 mega-ohm or higher and rated for 30KV DC or higher.

Measure QH09 collector pulse with a high quality 100:1 probe rated for 1500 volts or higher.

3. Troubleshooting procedure

Symptom	Check(YES)	Action(NO)
a) Image is	1) Check for Vsync at pin 40 of ICM01	Check 15 pin D-sub connector, cable,
scrolling.	2) Check for positive going Vsync at	ZDM02.
		Check ICM01, ICH01
	pin 2 of ICH01.
	3) Will V-oscillator is locked with input	Check CH01, CH02, RH05
	signal?
	(pin 22 of ICH01)
	4) Check V-amp at pin 23 of ICH01.	Replace ICH01.
	5) Check V-out at pin 5 of ICV01.
		Check B+ at pin 4,6 of ICV01.
b) Image is	1) Check for Hsync at pin 39 of ICM01	Check 15 pin D-sub connector, cable,
unstable.		ZDM01.
	2) Check for positive going Hsync at	Check ICM01, ICH01
	pin 1 of ICH01.
	3) Will H-oscillator is locked	Check CH06, RH06
	with input signal?
	(pin 6 of ICH01)
	4) Check H-out at pin 26 of ICH01	ReplaceICH01
	5) Check for flyback pulse at pin 12 of	Check RH10
	ICH01.

--13--

Symptom	Check(YES)	Action(NO)
c) Screen is black	1) Check for G2, pin4 of CRT.	Check DH28, RH94, RH92, CH53, CRT
but high voltage	Around 500 volts?	socket. G2 Wire
is present.	2) Check for heater voltage at pin 6 of	Check DP13, RP24, RP25, QP05, QP06
	CRT. (about 6.3V)	CRT socket. RC55, BC04, CNC01
	3) Can screen be lit with brightness	Check DH21, DH25, QH18, QH19,
	control at MAX?	RH85 CRT socket. RH82, RH83
	4) Check for video at pin 5, 8, 10 of	Check 15 pin D-sub connector, cable,
	ICC01	DC13, DC14, DC15
	5) Check for positive pulse for clamp at	Check ICM01, ICH01
	pin 18 of ICC01.
	6) Check if contrast controls video level	Check ICM01, RH24, ICC01
	at pin 21, 24, 26 of ICC01.
	7) Check for video at pin 1, 2, 3 of	Check ICC03,80 75VDC(pin 4)
	ICC03.	12VDC(pin 8)
		Check QC03 to QC08
	8) Check if R, G, B cut-off control the
	video DC level at pin 6, 8, 11 of CRT.
	9) Check CRT.
d) Screen is black	1) Is the LED01 lighting in Green color.	Check H.V Sync at pin39, 40 of ICM01.
with no high		Check pin 7, 8 of ICM01.
voltage.		Check ICM01, ICM02,ICC03
	2) Check for 14V at collector of QP07.	Check QP07, QP08.
		Check pin 9 of ICM01.
	3) Check output pulse at pin 6, 8 of	Check for Vcc at pin 29 of ICH01.
	ICH01.	Check oscilation pulse at pin 29 of
		ICH01.
		Check X-Ray voltage below 6.2V at
		pin 2 of ICH01.
		Check RH11, RH12, RH13
	4) Check Hor-Drive pulse at Base of	Check QH08, TH01.
	QH09.
	5) Check B+ at pin 2 of TH04.	Check DH07, LH01, QH07, QH04,
		QH05, QH06, QH51, RH41, RH42,
		RH39, RH18, ICH01
e) No power	1) Check ICP01 pin 4, 7	Check QP01, QP02, DP05, DP09, TP02
	2) Check switch pulse at Drain of QP04.	Check pin 6, 3 of ICP01.
	3) Check voltage for, 55V at Cathode of	Recheck above Item(d).
	Dp11 and for 7V at Cathode of DP13
	and for 14V at cathode of DP15

--14--

F770D Technical Service Manual

Adjustment Method

1. Caution

Extremely high voltage are present in the area around the FBT(TH04) and the anode high voltage Lead.

2. Equipment Required

Digital Voltmeter

Frequency Counter : about 40 Hz to 100 KHz Color Analyzer

Video Signal Generator High Voltmeter : up to 30 KV

Alignment Templete : Attachment 1

3. Before Adjustment

Verify that the video output level is 0.7 Vpp at 75 ohm termination and the video timmings are same as standard timming given in specification. Place the AC power switch to the ON position.

Allow the monitor to stabillize thermally for 15 minutes at least before any adjustment about the image parameters. The electron optics of the CRT and electronics of system require time of stabillize.

4. Adjustment Procedure

4-1 Horizontal raster center setting

-Video Signal : Back Raster pattern in 60kHz, 768 mode

-Measuring Point : SWH01, main board

-Place the Raster in center of the bezel.

4-2 Factory mode setting

-Turn off the power.

-Keep pressing the menu select key until the power turns on.

-Press the menu select key one more time.

-You can see the “F” message in 5the bottom on the right of the OSD main menu.

-This is the factory mode.

-Turn off the power to save the adjusted state.

-Select the "Mode Information" menu after you exit the factory mode.

4-3 Rotation setting

-Video Signal : Cross Hatch pattern in 31.5kHz, 400 mode

-Adjust the rotation of screen by using the menu select key and adjustment dial.

4-4 Color setting

-Adhere color Analyzer sensor closely to CRT center.

-Set Factory mode.

-Video mode : 68.677kHz, 768 mode

--15--

1Color Temperature 9300°K setting

-Select " 93 " by using the menu select key and adjustment up/down KEY.

Back Raster Setting

•Video signal : Back Raster Pattern

•Adjust the brightness of back raster by rotating the adjustment up/down KEY in “Bright”

•Limits : 2.5 0.5 cd/m2

Cut-off Setting

•Video signal : Back Raster Pattern

•Select “Cut-off” by using the menu select key and adjustment up/down KEY.

•Press the menu select key to get the desired R, G or B Cut-off.

•Rotate the adjustment dial to limit the x and y color coordinate.

•Limits : x=0.283 0.01, y=0.297 0.01

Drive Setting

•Video signal : 20% white box

•Select the "9300" by using the menu select key and adjustment up/down KEY.

•Adjust the brightness go to 150 cd/m2

•Press the menu select key to get the desired R or B

•Rotate the adjustment up/down KEY to limit the x and y color coordinate.

•Limits : x=0.283 0.01, y=0.297 0.01

Contrast Setting

•Video Signal : 20% white box

•Adjust the brightness go to 0.1 cd/m2 by using the adjustment up/down KEY in “Bright”

•Adjust the brightness of 20% white box by rotating the adjustment in “Contra”

•Limits : 150 2.5cd/m2

Back Raster Setting again

• The method of adjustment is same to section

2)Color Temperature 6500°K Setting

- Select " 65 " by using the menu select key and adjustment up/down KEY.

Back Raster, Cut-off Setting

•The method of adjustment is same to 9300°K

•The color coordinate is x=0.313 0.01, y=0.329 0.01

Drive, contrast Setting

•The method of adjustment is same to 9300°K

•The color coordinate is x=0.3130.01, y=0.3290.01

4-5 Geometry Setting

-Adhere template closely to the CRT surface

-Video Signal : Cross hatch pattern in 31.5kHz to 69kHz expectively.

-Adjust the all items by using the menu/select key and adjustment .

1)Horizontal Position Setting

- Place the screen in center of the horizontal direction.

2)Horizontal Size Setting

-Adjust the horizontal size of the screen to 305 5 mm

3)Vertical Position Setting

- ”Place the screen in center of the vertical direction.

4)Vertical Size Setting

-Adjust the vertical size of the screen to 229 5 mm

5)Pincushion Setting

-Make the straight line to the vertical right and left line of screen.

6)Trapezoid Setting

-Make the same size to the horizontal up and bottom size of screen.

7)Parallelogram & Pin Balance

-Adjust parallerogram until vertical lines are parallel to the vertical vezel.

8)Corner Pin

-Adjust corner pin until 4 corners are parallel to the vertical vezel.

9)Rotation Setting

-Adjust rotate until horizontal lines are parallel to the vezel.

--16--

F770D Technical Service Manual

4-6 Focus

-Video Signal : " Full H " character pattern in 69kHz 1024 mode

-Adjust H/V Focus VR on the top and middle of the FBT so that the image of whole screen looks clear

5.X-Ray Protection Test

-In any signal input condition, short RH11 (main board) by using the JIG.

-At this moment, check out whether raster disappears.

-Remove the JIG.

-After the power switch of the set off and on, check out proper working

6.AGING and Self Test Mode

The monitor has an enhanced level of self-diagonostics.

When the signal cable is removed or signal isn't detected, the monitor is operated to OFF-Mode. If menu/select key is pushed on OFF-Mode, the system has the ability to generate an R.G.B test pattern and the following OSD image is displayed on screen.

Picture A (MODE FOR END USER)

NO SIGNAL

R

G

B

(OSD MESSAGE is moving around the screen)

Picture B (MODE ONLY FOR AGING OPERATION)

NO SIGNAL

R

G

B

(OSD MESSAGE is fixed at the center of the screen)

1. Picture A on screen

Firstly, connect signal cable and Power on, and then remove signal cable again Secondly, push the select key and the image of “ sync off ” will be displayed on screen.

about 3 second later.

And last, Power Off and On again. And then Picture A on screen.

2. TRANSIT Picture A TO Picture B

Power Off and push the “select” key. And later Power on again. About 3 second later Picture B on screen. This mode for aging

3. TRANSIT Picture B TO Picture A

Firstly, Power Off, and connect signal cable, and then push menu key. Choose “information” from menu on screen.

Secondly remove signal cable, and later Power Off On again. And then Picture A on screen again.

--17--

Attachment 1. Alignment Template

229	240	351
305
320
404

--18--

F770D Technical Service Manual

Specification

			SIZE	17"(16" viewable) Diagonal
	CRT
			Dot Pitch	0.25 mm
			Type	Non-glare, Anti-Static & TCO Coated
	Input		Signal	R.G.B Analog
			Cable	15 pin D-Type male Connector
	SYNC		H-F	30 kHz		70 kHz(Automatic)
			V-F	50 Hz 150 Hz(Automatic)
				108 MHz (-3dB)
	Video Bandwidth
	Display		Area(H V) Color	305 229mm (Max. Over Scan) Infinite
	Resolution		Max.	1280	1024(64kHz/60Hz)
	User Controls			Recall, Brightness/Contrast, H/V-Position, H/V-Size,
				Pincushion/Trapezoid, Rotation, H/V-Moire, Degauss,
	&
				Color Control, Parallel, Information, Language, OSD H/V
	OSD Controls
				Poistion, Pin Balpance
	Power Management			As per VESA Standard, Lower than EPA's
				recommendation
	VESA DDC 1/2B			Basic
	Compatibility			VESA, 8514/A, XGA, EVGA, MAC II
	Power Source			100-240 VAC(Universal Power) 1.5A 75W
			TCO	TCO’95/99
	Safety &
			EMC	FCC Class B, CE,EMC
	Regulation
			Safety	cULus, TÜV-GS, FIMKO, SEMKO, DHHS, PCBC,
				GOST-R, VCCI
	Temperature		Storage	-20 to 60 degree celsius
			Operating	0 to 40 degree celsius
	Humidity		Operating	35% to 80% (Non-condensing)
			Storage	5% to 85%
	Weight			•Unit : 16.0Kg • Gross Weight :19.0Kg(with carton)
	Dimension(W		H D mm)	404	408	414mm

Specification is subject to change without notice for performance improvement.

--19--

Critical Parts Specification

MC68HC705BD7BWT62P1

GENERAL DESCRIPTION

The WT62P1 is a microcontroller for digital controlled monitor with Universal Serial Bus(USB)interface. It contains an 8-bit CPU, 32k bytes flash memory, 512 bytes RAM, 14 PWMs, parallel I/Os, SYNC signal processor, time, DDC 1/2B interface, master/slave I2C interface, low speed USB device module, 6-bit A/D converter and watch-dog timer.

FEATURES

•8-bit 6502 compatible CPU with 6MHz operating frequency

•32768 bytes flash memory, 512 bytes SRAM.

•12 MHz crystal oscillator

•4 channels processor with H+V separation , H/V frequency counter, H/V polarity detection/control and clamp pulse output

•Sync signal processor with H+V separation, H/V frequency counter, H/V polarity detection/control and clamp pulse output

•Six free-running sync signal outputs(Horizontal frequency up to 106KHz)

•Self-test pattern

•DDC 1/2B supported

•Fast mode master slave I2C interface(up to 400KHz)

•Embedded USB function with endpoint 0 and endpoint 1

•Built-In 3.3V regulator for USB tranceiver

•Watch-dog timer

•Maximum 28 progammable I/O pins

•One 8-bit programmable timer

•6-bit A/D converter with 4 selectable inputs

•One external interrupt request input

•Low VDD reset

ORDERINF ING ORMATION

Package Type	Part Number
42-pin PDIP	WT62P1-N42
42-oin shrink PDIP	WT62P1-K42
40-pin PDIP	WT62P1-N40
28-pin skinny PDIP	WT62P1-N28
44--pin SOP	WT62P1-S44

--20--

F770D Technical Service Manual

PIN CONFIGURATION
					42Pin PDIP
					42Pin SPDIP
		D +			1			42			D -
	PWM2				2			41			VIN
	PWM1				3			40			HIN
	PWM0				4			39			PWM3
					5			38			PD5/PWM4
	RESET/3V3
	VDD				6			37			PD4/PWM5
	GND				7			36			PD3/PWM6
	OSCO				8			35			PD2/PWM7
	OSCI				9	N42	K42	34			PD1/HOUT
	PB5/SDA2				10			33			PD0/VOUT
						- -
			PB2		13	WT62P1	WT62P1	30			PA5/PWM11
	PB4/SCL2				11			32			PA7/PWM13/CLAMP
	PB3/PAT				12			31			PA6/PWM12
	PB1/HFI				14			29			PA4/PWM10
	PB0/HFO				15			28			PA3/PWM9
					16			27			PA2/PWM8
			IRQ
PC7/SOGIN					17			26			PA1/SCL1
		PC6			18			25			PA0/SCA1
		PC5			19			24			PC0/AD0
		PC4			20			23			PC1/AD1
	PC3/AD3				21			22			PC2/AD2

40Pin PDIP

	PWM2				1		40	VIN
	PWM1				2		39	HIN
	PWM0				3		38	PWM3
					4		37	PD5/PWM4
	RESET/3V3
	VDD				5		36	PD4/PWM5
	GND				6		35	PD3/PWM6
	OSCO				7		34	PD2/PWM7
	OSCI				8	N40	33	PD1/HOUT
	PB5/SDA2				9		32	PD0/VOUT
						-
			PB2		12	WT62P1	29	PA5/PWM11
	PB4/SCL2				10		31	PA7/PWM13/CLAMP
	PB3/PAT				11		30	PA6/PWM12
	PB1/HFI				13		28	PA4/PWM10
	PB0/HFO				14		27	PA3/PWM9
					15		26	PA2/PWM8
			IRQ
PC7/SOGIN					16		25	PA1/SCL1
		PC6			17		24	PA0/SCA1
		PC5			18		23	PC0/AD0
		PC4			19		22	PC1/AD1
	PC3/AD3				20		21	PC2/AD2

44 - Pin SOP

D +						1		44			D -
PWM2						2		43			VIN
PWM1						3		42			HIN
PWM0						4		41			PWM3
RESET/3V3						5		40			PD5/PWM4
VDD						6		39			PD4/PWM5
						7		38
GND						8		37			PD3/PWM6
OSCO						9		36			PD2/PWM7
OSCI						10	S44	35			PD1/HOUT
PB5/SDA2						11		34			PD0/VOUT
							-
	PB2					14	WT62P1	31			PA5/PWM11
PB4/SCL2						12		33			PA7/PWM13/CLAMP
PB3/PAT						13		32			PA6/PWM12
PB1/HFI						15		30			PA4/PWM10
PB0/HFO						16		29			PA3/PWM9
						17		28			PA2/PWM8
	IRQ
PC7/SOGIN						18		27			PA1/SCL1
PC6						19		26			PA0/SCA1
PC5						20		25			PC0/AD0
PC4						21		24			PC1/AD1
PC3/AD3						22		23			PC2/AD2

28-Pin skinny PDIP

PA5/PWM11	1		28	PA4/PWM10
PA6/PWM12	2		27	PA3/PWM9
PA7/PWM13/CLAMP	3		26	PA2/PWM8
PDO/VOUT	4		25	PA1/SCL1
PD1/HOUT	5	N28	24	PA0/SDA1
HIN	6		23	PC0/AD0
VIN	7	-	22	PC1/AD1
RESET/3V3	8	WT62P1	21	PC2/AD2
VDD	9		20	PC3/AD3
GND	10		19	PC4
OSCO	11		18	PC5
OSC1	12		17	PC6
PB5/SDA2	13		16	PC7
PB4/SCL2	14		15
				IRQ

--21--

KS24C08

4K 2.5V CMOS Serial EEPROMs

FEATURES

•Single supply with operation down to 2.5V

•Low power CMOS technology

-1 mA active current typical

-10µA standby current typical at 5.5V

-5 µA standby current typical at 3.0V

•Organized as two or fore blocks of 256 bytes (22568) and (42568)

•Two wire serial interface bus, 12CTM

•Schmitt tigger, filtered inputs for noise suppression

•Output slope control to eliminate ground bounce

•100kHz (2.5V) and 400kHz (5V) compatibility

•Self-timed write cycle (including auto-erase)

•Page-write buffer for up to 16 bytes

•2 ms typical write cycle time for page-write

•Hardware write cycle time for page-write

•Can be operated as a serial ROM

•Factory programming (OTP) available

•ESD protection > 4,000V

•1,000,000 ERASE/WRITE cycles (typical)

•Data retention > 40 years

•8-pin DIP, 8-lead or 14-lead SOIC packages

•Available for extended temperature ranges

-Commercial : 0°C to +70°C

-Industrial : -40°C to +85°C