Hitachi CM615-FET Schematic

SERVICE MANUAL
MANUEL D'ENTRETIEN
WARTUNGSHANDBUCH

CAUTION:

Before servicing this chassis, it is important that the service technician read the “Safety
Precautions” and “Product Safety Notices” in this service manual.

No. 0419

CM621FET

Data contained within this Service
manual is subject to alteration for
improvement.

ATTENTION:

Avant d’effectuer l’entretien du châassis, le technicien doit lire les «Précautions de sécurité»
et les «Notices de sécurité du produit» présentés dans le présent manuel.

VORSICHT:

Vor Öffnen des Gehäuses hat der Service-Ingenieur die „Sicherheitshinweise“ und „Hinweise
zur Produktsicherheit“ in diesem Wartungshandbuch zu lesen.

Les données fournies dans le présent
manuel d’entretien peuvent faire l’objet
de modifications en vue de perfectionner
le produit.

Die in diesem Wartungshandbuch
enthaltenen Spezifikationen können sich
zwecks Verbesserungen ändern.

SPECIFICATIONS AND PARTS ARE SUBJECT TO CHANGE FOR IMPROVEMENT

Colour Monitor

June 2001

1. DISPLAY ALIGNMENT...............................................................1

A. Times & Display Size................................................................................................... 1

B. Picture Position.............................................................................................................1

C. Linearity........................................................................................................................ 1

D. Alignment Procedure.................................................................................................... 2

E. Geometry Distortion ..................................................................................................... 2

F. Tilt................................................................................................................................. 2

G. White Balance Alignment ............................................................................................ 3

H. Preset Timing................................................................................................................4

2. CONTROL AND CONNECT LAYOUT ........................................5

A. Main PCB .....................................................................................................................5

B. Video PCB ....................................................................................................................6

C. Pin Assignment............................................................................................................. 7

3.INTRODUCTION.......................................................................... 8

A. Power Supply................................................................................................................ 8

B. Deflection ..................................................................................................................... 8

C. Video ............................................................................................................................ 8

D. Digital Controllor ......................................................................................................... 8

4. POWER SUPPLY ....................................................................... 11

A. Rectifier and Filter Circuit ........................................................................................... 11

B. Flyback and PWM Circuit............................................................................................ 11

C. Subber Circuit............................................................................................................... 11

D. Synchronized Circuit.................................................................................................... 11

E. Power Saving Circuit .................................................................................................... 11

F. Degauss Circuit ............................................................................................................. 12

G. Overload Protection Circuit ............................................................................ 12

5.DEFLECTION ..............................................................................13

A. Sync Processor.............................................................................................................. 13

B. Horizontal Processor..................................................................................................... 13

C. Vertical Output ............................................................................................................. 13

D. Dynamic Focus Section................................................................................................ 13

E. Horizontal Output Stage ............................................................................................... 13

F. Flyblack Transformer.................................................................................................... 13

6.VIDEO AMP. CIRCUIT................................................................. 16

A. Video PRE. AMP. ........................................................................................................ 16

B. Video Amplifier............................................................................................................ 16

7. TROUBLESHOOTING ................................................................19

A. Power Supply Check .................................................................................................... 19

B. Monitor Check Flow Chart........................................................................................... 20

APPENDIX A: SCHEMATIC DIAGRAMS ......................................23

APPENDIX B: DISPLAY UNIT ASSEMBLY DIAGRAMS .............27

APPENDIX C: PART LISTS ..........................................................29

WARNING

1) This product contains components which are critical for X-radiation safety. Read the Service manual
carefully for proper replacement. Maximum 2nd anode voltage use high impedance meter, connect (-) to
chassis, use a high voltage lead from (+) to 2nd anode.

2) Critical Components are marked with the symbol of in the material list. For continued protection
against X-radiation, replace only with same type and rating components.

3) Critical Components are marked with the symbol of # in the material list. For continued protection
against Low Radiation, replace only with same part number.

4) This symbol warns the personnel that un-insulated voltage within the unit may have sufficient

magnitude to cause electric shock.

Therefore, it should be read carefully in order to avoid any problems.

1. DISPLAY ALIGNMENT

A. TIMING & DISPLAY SIZE

For all presetting mode shall be within the limitation:

H. WIDTH 300 ± 5mm

V. HEIGHT 225 ± 3 mm

The external control range of the data area, shall be as follows;

Max. horizontal size : overscan the screen

Min. horizontal size : ≤ 285mm

Max. vertical size : over the screen

Min. vertical size : ≤ 202 mm

B. PICTURE POSITION

For all presetting mode shall be within the limitation:

H.PHASE SCREEN CENTER ± 3 mm

V.CENTER SCREEN CENTER ± 2 mm

The external control ranges of display for all modes listed in section 2.4

H.POSITION ≥ 50 mm

V. C E N T E R ≥ 25 mm

C. LINEARITY

The CONTRAST and BRIGHTNESS control shall be properly adjusted at 20 F-L with Full-intensity reverse
pattern, then change to crosshatch Pattern 12x10 (H x V), the size of grid of crosshatch pattern in every display
mode shall not vary than 5%(P) or 6%(S).If two line is next to each other, 6%(P) or 7%(S) if they are not next to
each other. The calculation formula was listed below:

H max - H min V max - V min
x100% or x100%
H max + H min V max + V min

1

D. ALIGNMENT PROCEDURE

• Warm up the monitor for at least 30 minutes before adjustment.

• Set the front of CRT to the east.

• Turn all VR set to center position.

D-1. H.V

1. Use front control key adjust the display size about 300mm, adjust VR801 Let the High voltage of Circuit

is 26KV in Timing 68K mode CROSS PATTERN.

E. GEOMETRY DISTORTION

1. Pincushion

Pincushion(top) d1<=2.0mm(p) or 2.5mm(s)

Pincushion(bottom) d2<=2.0mm(p) or 2.5mm(s)
Pincushion(leftside) a1<=1.5mm
Pincushion(rightside) a2<=1.5mm

”S” distortion <=0.5mm(p) or <1mm(s)

2. Barrel

Barrel(top) c1<=2.0mm

barrel(bottom) c2<=2.0mm
barrel(leftside) b1<=1.0mm
barrel(rightside) b2<=2.0mm

3. Trapezoid & Parallelogram distortion

a<=2.5mm (p) or 3.0mm (s)
b<=2.5mm (p) or 3.0mm (s)

F. TILT

The maximum variation of the display rotation (tilt) shall be such that the following relationship shall be
met:

<=0.5 DEGREE FACE EAST

2

G. WHITE BALANCE ALIGNMENT

G.1 .1 Select timing #6 (VESA 68K 1024X768) with crosshatch pattern, adjust both horizontal and

vertical OSD’s size control to get display size within 300x225p±2mm.

G.1.2 Disconnect RGB signal inputs, adjust OSD’s brightness and G1 control to it’s maximum

position.

G.1.3 Auto alignment (P103 must be short)

Use automatic alignment equipment and program to get color temperature within specified
coordinates.

G.1.4 Manual alignment

P103 must be short in order to into factory mode. Select OSD function to color temperature
adjustment.

G.1.5 For 9300 colour coordinate(note: the minimum value of RGB bias is 50) adjust bias G to get

Y=311, then adjust bias R to get X=281. Reduce G1 to Y=0.8FL, fine tune bias G to get Y=311,

±

and let raster color coordinate is X=281

3, Y=311±3, Y=0.8±0.1FL.

G.1.6 Adjust brightness control to get raster is 0.06FL. reconnect R.G.B. input signal and change

pattern to 2 inch square, adjust gain B to get Y=311, gain R to get X=281.]

G.1.7 Check Y=51

G.1.8 Change pattern to fall white, adjust SB to get Y=32

G.1.9 Select 6500 and 5000 colour coordinate separately. Repeat item 2.5.5 ~ 2.5.8 to meet specificity.

6500 X=313 Y=329

5000 X=332 Y=349

±

1FL, if not adjust G to get Y=51FL, then repeat item 2.5.6

±

1FL.

3

H. PRESET TIMING:

PRESET MODE TIMING

MODE H Pixes

d:dot B.G:

1 IBM

VGA

2 VESA 800

3 VESA 800

4 VESA

(Primary)

5 VESA 1280

6 VESA 1024

Remark:

Fd(MHz)

V Lines

640
480

600

600

1024

768

1024

768

(1). Primary preset: This is primary timing, match the marked (p) item in engineering

(2). Secondary preset: The other preset timing shall match the marked (s) item in

Polar(H/V)

25.175
N/N

49.5

P/P

56.25
P/P

78.75
P/P
108
P/P

94.5
P/P

specification.

Fh(KHz)

Fv(Hz)

31.47

59.94

46.874
75

53.674

85.061

60.023

75.029

63.981

60.02

68.677

84.997

engineering specification.

Th(us)

Tv(ms)

31.778

16.683

21.333

13.333

18.631

11.756

16.66

13.328

15.63

16.661

14.561

11.765

Td(us)

Td(ms)

d:display

25.422

15.253

16.162

12.8

14.222

11.179

13.003

12.795

11.852

16.005

10.836

11.183

Tb(us)

Tb(ms)

A.F:

backporch

1.907

1.048

3.232

0.448

2.702

0.503

2.235

0.466

2.296

0.594

2.201

0.524

Tp(us)

Tp(ms)

D.I:

Pulse

3.813

0.064

1.616

0.064

1.138

0.056

1.219

0.05

1.037

0.047

1.016

0.044

Tf(us)

Tf(ms)

C.H:
front

0.636

0.318

0.323

0.021

0.569

0.018

0.203

0.017

0.444

0.016

0.508

0.015

4

2. CONTROL AND CONNECT LAYOUT

A. Main PCB

5

B. Video PCB

6

C. PIN ASSIGNMENT

C-1. Connect Table

P102 P105-P303 P104-P302

1 DETECT V-OUT AFC

2 DDC-SCL OSE-SDA GHD

3 DDC-SDA OSD-SCL G1

4 GND H-out HEATER

5 V-sync 5V

6 H-sync 100V

7 12V

8 ABL

9

10

p.s p1 -> p101 for switch board.

C-2. Connect Function

P803 : H-CENTER CONN

P501 : TILT CONN

P802 : CANCEL COIL CONN

P103: PRESET CONN

P902 : DEGAUSSING COIL CONN

P804 : X-RAY TEST PAD

7

3. INTRODUCTION:

MF700 is a 17” multisync color monitor. The horizontal frequency range is from 30khz to 70khz,
and the refresh rate is from 50hz to 160hz. The circuit includes four major parts, the power supply
circuit, the deflection circuit, the video circuit and the digital control circuit. is the function block
diagram.

A. POWER SUPPLY:

Transfer AC source to DC source that supply all the circuit power. It includes:

(1) +13.5V: For video pre-amp circuit, parts of horizontal and vertical deflection circuit.

(2) –11.6V: For vertical deflection circuit.

(3) +7.1V: For CRT heater.

(4) +55V: For B+ Boost circuit.

(5) 10V: For u-p power
Fig 2 is the function block diagram of power circuit.

B. DEFLECTION:

Produce YOKE deflection current of horizontal and vertical, CRT HV and bias that makes
screen raster.

C. VIDEO:

amplify the video signal and add the signal to the cathode of CRT to produce video on the
screen.

D. DIGITAL CONTROLLOR:

With the EEPROM and PROGRAM, the micro-processor (uP) control all the picture
performance.

From the key control, the user can change the H-size, V-size, V-center, H-phase.

8

Fig1

9

Fig2

10

4. POWER SUPPLY

A. RECTIFIER AND FILTER CIRCUIT:

The 90Vac-265Vac input line voltage is rectified by D901- D904, and smoothed by C906 to
provide DC operating voltage for the circuit.

B. FLYBACK AND PWM CIRCUIT :

When power is initially applied to the circuit, C909 charges through R903, Q902.When the
voltage across C909 reaches a level of 16V, U901 is enabled, turning on Q903 and turning
off Q902 to complete start-up action.

During the On-time of Q901, energy is stored in T901. At this time the polarity of the output
windings is such that all output rectifiers are reverse biased and no energy is transferred.
Primary current is sensed by R907 and compared to a DC level that is determined by voltage
feedback. When this level is reached, Q901 is turned off and the polarity of all T901
windings reverses , forward biasing the output rectifiers. All the energy stored is now
transferred to the output capacitors. Many cycles of this store/release action are needed to
charge the outputs to their respective voltages.

The voltage across C946 is fed through a voltage divider R970, R971, R972, R975 and VR901
to the error amplifier U904 and compared to an internal 2.5V reference ,then determine the
feed back level of U901 pin 1.

C. SNUBBER CIRCUIT:

Energy stored in the leakage inductance of T901 cause a voltage spike which be added to the
normal reset voltage across T901 when Q901 turn off. The clamp consisting of D905, R904
and C907 limits this voltage excursion from exceeding the Vds rating of Q901. In addition, a
turn off snubber made up of D906, R905 and C908 keeps power dissipation in Q901 low by
delaying the voltage rise until drain current has decreased from its peak value. This snubber
also damps out any ringing which may occur due to parasitic.

D. SYNCHRONISED CIRCUIT:

The oscillator frequency is defined by R912, C912. The equation is approximately :
Fosc=1.8/ (R912*C912). The external signal “SYN+ & SYN−”

that comes from horizontal circuit FBT can synchronise the working frequency of power
circuit Via R919, C916 and R918.

E. POWER SAVING CIRCUIT:

The monitor has ON, Suspend/Standby and OFF states. The monitor enters Suspend/Standby
mode if either V-sync or H-sync signals are removed. When the machine in the Suspend/
Standby State, PS1 should be low to turn off +13.5Vs. In this state, input power should be
less than 15W and LED-1 LED illuminate yellow. The monitor enters OFF mode if both
H-sync and V-sync are removed. When in the OFF State, PS1 and PS2 should below
simultaneously to turn off +13.5Vs and +7.1Vs outputs. In this state, input power should be
less than 5W and LED-1 LED illuminate amber.

11

F. DEGAUSS CIRCUIT:

The DEGU signal which comes from micro-p to control degauss coil act or not.

When DEGU is high, Q950 will be saturated to make RL901 working, AC line provides a
degaussing current to degauss coil.

G. OVERLOAD PROTECTION CIRCUIT:

The primary current flows through the current sensing resistor R907.

The sensing voltage through the R930, D930, R936, R932 to Q930 pin G, If the current up,
the Q930 pin G voltage will be increased, When the voltage>0.6 V, the U901 pin 1 shall drop
down by Q930. When the U901 stop action, it will be over load for protection.

12

5. DEFLECTION

A. SYNC PROCESSOR:

H-sync & V-sync input to U1 (uP), then up output the H-out, V-out signal to U401 TDA9113.
The H-out, V-out always are positive.

B. HORIZONTAL PROCESSOR

Fig 3 is the block diagram of IC TDA9113.

The IC TDA9113 output vertical sawtooth and H-Drive signal to produce, H.V deflection.
Meanwhile TDA9113 output. BDRV signal (IC pin 6) that can control B+ voltage.

C. VERTICAL OUTPUT

Fig 4 is the block diagram of IC TDA8172A.

Input vertical sawtooth signal from TDA9113 to TDA8172A, then TDA8172A produce
vertical deflection current.

D. DYNAMIC FOCUS SECTION

The IC TDA4856 can output horizontal and vertical parabolas I2C bus controllable. These
parabolas input to Amp, then output to G4. The amplifier consists of Q806, Q805, Q804,
Q803.

E. HORIZONTAL OUTPUT STAGE

F<33K 33K<F<36K 36K<F<41K 41K<F<52K 52K<F<58K 58K<F<65K 65K<F

SW1 L L L H H H H

SW2 L H H L L H H

SW3 L L H L H L H

F. FLYBLACK TRANSFORMER

In the primary of FBT, there is about 1150Vpp in the LC resonant interval, It convert to the
secondary of FBT to produce about 26KV for CRT anode voltage.

13

Fig3

14

Fig4

15

6. VIDEO AMP. CIRCUIT

A. VIDEO PRE-AMPLIFIER

The video pre-amp IC is U201 (TDA9210). The input signal is 0.7Vpp, then pre-amp IC
U201 amplify the video signal to 4~5Vpp. The U201 is controlled by up via I
block diagram.

B. VIDEO AMPLIFIER

The video amplifier is U301 (TDA9535), it amplify video signal to about 40Vpp. Video
output signal add to cathode by DC coupling. The DC bias is controlled by the output IC
U201.

Fig 6 is the block diagram

2

C bus is the

16

Fig5

17

Fig6

18

7. TROUBLESHOOTING

A. POWER SUPPLY CHECK

19

B. MONITOR CHECK FLOW CHART

B-1. No Raster

20

B-2. No Picture

21

B-3. No Vertical Deflection ( rester become a horizontal line)

22

+15VS

HDRV

+15VS

+15VS

SH-SIZE

SMOD

OSD-SCL

OSD-SDA

A

SW4

SW3

SW2

SW1

TILT

-12V

H-OUT

V-OUT

+12V

U-LOCK

C521

33

C831

250V

MPP

GND

GND

*

D859

*

C430

0.01U

R430

3.3K

R504

R505

R506

1

D502

R514

R546

4.7K

1/8W

*

1N5817

R539

*

10K

1W1

1W

GND

R543

22

1/2W

+15VS

R421

10K

+

C416

GND

GND

1N4148

R570

22

*

RL801

D508

C810

0.01U

R515

Q514

2SC945

R526

100

MUTE

Q501

2SC5521

P802

L801

18.5Ts

47

C515

0.01U

R529

680

5W

D520

1N4148

R536

1

2W

GND

L803

C809

0.82

250V

MPP

GND

R535

1

2W

GND

R410

4.7K

C527

22P

+15VS

R604

6.2K
1%

R605

4.3K
1%

2
1

L802

6mH

C509
330P
500V

IRFS640A

R528

GND

R601

6.8
1W

GND

-13V

P801
H-DY

12.5Ts

R806
100

1W

R807

47
1W

Q513

R527

10K

GND

*

R602

1.1K
1%

C817

C806

0.27

400V

C601

0.01U

R614

1

1/2W

C805
1000P
1KV

R805
330
1W

*

MPA

C417

47U
16V

GND

L804

BEAD

L501

145uH

L502
BEAD

D501

ER304

BYM36C-798

C609

0.01U

D802

+

GND GND

+
C602

470U

25V

GND

R603

2.4K

L806
BEAD

C801

0.0075U

1.6KV
MPM

C802

*

0.033U
1KV
MPM

C803

0.0068U
1KV
MPM

GND

R530

2.2K

C511

.047U

250V

MEF

R422

10K

7

U601
TDA8172

1

D801

C023M-15

+56V

B+

+

GND

Q402

2SC945

D601

2

6

4

C604

0.01U

GND

GND

C510

47U

250V

Q508-B

R423

10K

2SC945

D405

FR10-04

C603

+

100U

25V

3

5

1000U

+

R424

10K

Q403

R606

C605

16V

UF4001
D805

C812
+

22U
50V

R802

10

3

P803

GND

1N4148

*

R801

10

2

1

R540
470K

1W

D522

*

+12V

1N4148

C606

0.22U
MEF

UF4001
D806

C813

22U
50V

GND

R572

P804

GND

D406

1N4148

D602

R607

2.2

R571

1

R838

1K
1%

+

*

*

2

R837

53.6K
1%

R608

270

1/2W

R609

1W

GND

FBT

GND

ZD402
HZ5B1

1

R809

10

G1

R836

10K

56.2K-798

C431

47U
16V

D809

R828

45.3K
1%

+12V

GND

C607

0.001U
50V
MEF

*
YOKE
V-DY

R823

10K

R844

1.2K

2SC1627

Q841

0.01U

R845

Q842

2SB647

C851
100V

R856

R853

5.6K

R816

22

1/8W

R818

39K

R821

820

C841

100

47U

+12V

SMOD

+

3K

BRI.

G1-ADJ

G1

R852

2.7K

+

C820
100U

16V

SUB-BRI.

CONTRAST

ABL

G2

FOCUS

+12V

+56V

V-DY

H.V.

G4

G2

D-FOCUS

D820

D807

R808

10

UF4007

UF4007

1/2W

SG2

GND

GND

R839

*

1/2W

D816

FR105

*

+

C825

*

160V

GND

-150V

C818

22U

+

160V

GND

+

D810

GND

R425

R426

3.3K

GND

GND

R611

10K

FR10-04

C824

1U

50V

R829

9.1K

VR801

B2K

12K

+

GND

R610

10K

ZD401
HZ9A2

Q404

2SA733

+60V

GND

R612

22K

Q601

BF420

+100V

R834

GND

47K

R832

12K

C608

0.1U
250V

SG3

MEF

C842

100V

*

Q807

22U

SG1

1.5KV

BF423

R810

C814

0.068U
MEF

R872

2.2M

R871

2.2M

R870

2.2M

GND

R847

+

1/2W

2SD667

R849

22

D-FOCUS

1K

15K

Q843

C861

1000P

R833
820K

R831

10K

R811

20K

R860

470

1/2W

1KV

R861

150K
1/2W

R830
220K
1/2W

Q808

2SA733

C815

0.022U
MEF

C816

0.015U
1KV
PPN

GND

C840

D841

1N4148

R84847R846

C843

100V

Q850

BF423

-150V

R812
10K

GND

R822

470

C822
120P

2SA733

R842

3.9K

+

R843

10U

D840

1N4148

+

1U

6

T801

4

C855

R855 470K

C852

1U

50V

R819

15K

1/8W

Q840

36K

47

8

2u2
16V

GND

1

C854
10U

100V

R820
150K

R827

47K

0

1

+

+

+

R835

100

D811

1N4148

R813

2.2K

R817

100

1/8W
C821

1U
50V

NP

Q820

2SC945

R851

4.7K

R854

18K

+

C853

50V

1U

V-OUT

R501

R534

Q517

*

*

C501

100U

25V

R508

2.2K

+

GND

R509

2.2K

R538

*

R565

*

R558

1K

Q521

*

GND

R403

10

C404

0.01U

VCC

FC1

C410

0.1U
50V
MEF

D506

1N4148

Q506

2SC945

Q507

2SA733

D507

1N4148

C520

1000P

Q518

*

GND

R406

3.3K
1/8W

B+OUT

PLL2C

C409

0.022U
50V
MEF

R541

*

C530

0.22U
MEF

C522

4.7U
16V

NP

R545

2.2K

R405

GND

GND

C0

C414

1000P

50V
MEF

1K

Q503

RN1206

Q504

RN1206

GND

GND

C506

R517

1000P

C512

2.2U
16V

+

GND

C523

0.022U

C402

0.01U

R418

100

R419

4.7K

R516

10K

D509

1N4148

R532

3.3K

R547
820K

MEF
50V

C401

+

100U

U402

25V

7812

GND GND

2SC945

I

100

C419

C418
100P

100P

GND GND

R402

R401

R417

100
1/8W

100
1/8W

VFOCUS

H/HVIN

1 1098765432

R518

2K

Q505

20KR525

D401

1N4148

G

VSYNCIN SDA

O

C403
100U

16V

C405
100U

16V

GND

C507

.01U

GND

+

C508

4.7U

SCL

HLOCKOUT

50V

R533

3.3K

+

+

& VBLK

10K

2W
15

C504

+

D504

1N4937

P501

R520

82
2W

GND

1U

GND

R542

2W

1
2

R521

3.32K
1%

HOUT

HGND

*

R537

2200P

C514

R519

560

1/2W

R416

4.5K
1%

C411

0.01U
50V
MEF

5.1
1W

R531

100

C505

R557

1K

R510

22

D514

+12V

Q508

2SA733

HDRV

XRAY

R0

R511

10K

0.1U

*

R404

4.3K
1/8W

EWOUT

PLL1F

D503

Q509

2SA733

GND

R415

1.8K

+

C412

4.7U
16V

1N4148

GND

C807

0.27

400V

Q809
IRFS630A

R524

22.1K
1%

GND

VOUT

H Position

C413

GND

R507

10K

MPP

D505

1N4937

R523

18.2K
1%

R522

1K
1%

GND

VCAP

TDA9112

HV Focus

C528

+

10U

220P

16V

FOCUS

C502

0.47U
MEF
50V

R850
470K

1/2W

C420

0.22U
50V
MEF

R502

150

1W

Q502

2SK941

GND

R556

R512

C513

D513

L805

120uH

Q802

2SC1213

VGND

HFLY

C425

C426

0.01U

C503

0.01U

*

Q810

IRFS630A

22

R513

10K

0.1U

*

2.2U

Q801

2SB857

C421

0.47U

GND

VGACAP

HREF

C406

1000P

47U
16V

+

R548

C811

63V
MEF

50V
MEF

50V

MEF

*

GND

+

GND

D510

1N4148

C808

0.1

400V

MPP

D521

R549

GND

Q510

*

C424

47U
16V

VRB

COMP

R408

C407

0.01U

*

*

181920212223242526272829303132

1/8W

82K

T501

GND

JP-ST

R420
220K
1/8W

VEHTCOMP

REGIN

C408

1000P

17

161514131211

+56V

R857
470K
1/2W

R563

*

D515

HEHTCOMP

ISENSE

*

R564

C531
*

SMOD

R409

1/8W

D402

1N4148

2SC945

GND

Q831

*

*

GND

100K
1/8W

GND

1K

Q401

R503

1/2W

GND

Q511
2SC945

Q512

2SA733

R411
270K

1/8W

R412

3.3KR407

D404
1N4148

No. 0419

VA-719 DEFLECTION & POWER BOARD - SHEET 1

23

+8V

+5V

C1

47U
16V

GND

GND

+

OSD-SDA
OSD-SCL

SW4

VOLUM-

SW3

VOLUM+

SW2

FUNCTION

SW1

POWER-SW

LED1

LED-3

U3

78R05

R39

20K

D1

1N4148

I

0.01U

G

C5

O

GND

G-ON

A-ON

C2
100U
16V

1

2

3

24LC08

GND

U2

< 70K

H

H

L

H

H

HH

SW 1

SW 2

SW 3

< 33K 52~57K41~51K36~40K33~35K 58~65K

L

L

L

L

L

L

H

LHH

H

L

HL

SW 4

FOR 70K TABLE FOR 87K TABLE

+

C3

0.01U

8

7

6

54

C85

100P

GND

GND GND

GND

R2

P1

1
2
3
4
5
6
7

R34

4.7K

C13
10U

16V

100

C86

100P

0.01U

R1

10K

R3

100

+

C6

1N4148

GND

D3

D2

*

R18
10K

CONTRAST

R32
10K

R26

10K

R25
10K

TILT

C8

12MHZ

Y1

33P

GND

GND

33PC7

OSD-SDA

OSD-SCL

JP2

GND

MODEL

PS1

PS2

R5

R4

10K

10K

R6

10K
R28

R33

2.2K

R29
10K

R30

2.2K

R31

2.2K

1

2

DA1/P5.1

3

DA0/P5.0

4

RESET

5

VDD

6

VSS

7

X2

8

X1

9

ISDA

10

ISCL

11

STO/P4.2

12

P2.2/AD2

13

P1.0

14

P1.1

15

P3.2/INT

16

P1.2

17

P1.3

18

P1.4

19

P1.5

20

P1.6 P1.7

WT62P1
MTV212

+5V

U1

FACT/USER

+

4.7U

GND

DA3/P5.3

DA4/P5.4

DA5/P5.5

D8/HALFH

D9/HALFV

HBK/P4.1

VBK/P4.0

D7/CLAMP

DA6/P5.6

P2/DA13

P2/DA12

P2/DA11

P2/DA10

P2.0/AD0

P2.1/AD1

P103

C12

50V

VSYNCDA2/P5.2

HSYNC

HSCL

HSDA

2
1

10K

P101

1
2
3
4
5
6
7

R37
10K

Q2

R7

330

R8

A733

330

Q1

A733

GND

Q5

C945

MUTE

R9

3.3K

R10

1K

GND

U-LOCK

P104

1
2
3
4
5
6
7
8

R38
10K

R35

10K

40
39

38

37
36
35
34
33
32
31
30
29
28
27
26

25
24
23
22

21

GND

+12V

ABL

R41

2.2K

A-LOW
G-LOW

R36

10K

AFC

GND

G1

HEATER

+5V

SW 1

SW 2

SW 3

SW 4

+100V

C90

0.1U

250V

GND

R24
10K

R40

1K

P102

1
2
3
4
5
6

>75K62~75K58~61K51~58K45~51K40~45K34~40K34K<

L

L

L

L

L

L

L

L

L

H

H H H

L

H

H

L L

H

L L

H

H

HHHH

H

H

H

H

H

P103 & (+) & (-) =>POWER CORD ON ==INI

R23

10K

R21
10K

R20

10K

R19
10K

R22

10K

R17

22K

R16

*

BRI.

G1-ADJ

+

C11

4.7U
50V

GND

VSYNC

HSYNC

SH-SIZE

R15

2.2K

DEGAUSS

SUB-BRI

H-OUT

V-OUT

+

C14

4.7U

GND

50V

C66
150P

GND

C10

4.7U
50V

+

GND

SW3
SW2

SW1
DDC-SCL

DDC-SDA

DETECT

HSYNC

VSYNC

+8VS

HEATER

GND

JP1
OSD

ZD3

HZ5C1

GND

C17

DETECT
DDC-SCL

DDC-SDA

GND

V-SYNC

H-SYNC

GND

C15

220P

GND

GND

C18

ZD1

HZ5C1

GND

+5V

GND

HZ5C1D82

GND

+5V

GND

1000P

ZD4

HZ5C1

GND

ZD5

HZ5C1

HZ5C1

D81

C16

GND

470P

R11

10K

GND

C9

R12
10K

GND

ZD2

HZ5C1

GND

+5V

D80

IN4148

C19
.1U

GND

R13

1K

Q3

SC945

GND

Q4

RN1203

GND

R14

4.7K

R66

3.3
1W

R27

1K

+5V

R67

JUMPWIRE

P105

1
2
3
4
5

V-OUT
OSD-SDA
OSD-SCL

H-OUT

GND

No. 0419

VA-719 DEFLECTION & POWER BOARD - SHEET 2

24

D901

F901
T3.15A

250V

C903

NC

L

1N5406 x 4

D902

1

420035mH

C902

X20.47U

L901

1

420035mH

C901

X20.22U

R901

1/2W1M

C904

CHS GND

GND2

3

2

1

P901

D903

4

32

4

32

NC

L902

N

D904

RT901
SP15008

GND2

C927

472Y2

GND2

C934
332Y2

RL901

1

2

P902

C924

22U
25V

Q950
C945

3

C906
220U
400V

#_450V

+

GND5

R929

100K
1/4W

+13.5V

PR901

R926

1M

1/4W

GND1

+

GND5

R960

Q903

C945

GND5

1N4148

R950

75

1/2W

D950

1N4148

GND1

FROM

F.B.T

56K

D914

+
C952
100U
25V

0.2

R951

10K

1/4W

R902

GND5

R931

1M

1/4W

C923

10U
25V

1W

R928

ZD960

NC

DEGU

D921

1N4148

GND5

R919

82

1/4W

C960

NC

1/2W

D943

UF4006G

D942

ER306

R964

NC

HS941 NC

R981

10

UF5402G

R982

10

1/2W

D944

FR104

SF24G

D970

R974
1K
1/4W

3K

K

A

GND1

C947

200VB

D940

C983

330P

1KV

C977

224J

MEF

R

C963

NC

1KV

47U

HS942

C962

NC

C981
330P

1KV

C982
330P
1KV

NC

D941

ER302

R977

47

+

GND1

VR901
200B

1/2W

R973

470

1/2W

C975

0.068
250V

MEF

R976

1K

1/4W

R954

NC

+

GND1

GND1

GND1

+

GND1

+

GND1

L941
5UH

C946
470U

100VB

+

C944

1000U

25VB

+

C940

1000U

16VA

C949

1000U

16VA

C970

1000U

25VA

R972

2.26k
1/8W

MF

R965

NC

1/4W

R970

27K

1/2W

R971

22K

1/2W

GND1

L942

5UH

C942
470U
16VA

R993

R984

NC

2W_R

R944

4.7K
1/4W

NC

GND1

JP903

R941

4.7K

1/4W

+

JP904

R991

NC

Q992
A733

NC

Q962

10mm

NCB649

R992
NC
1/4W

GND1

R966

Q940

B772

5mm

Q991
D400

NC

2WNC

Q942
B772

R942

820

1/2W

R945

1K
1W

R994

NC

GND1

Q961

GND1

Q941

RN1203

GND1

D991

NC

NC

Q943

RN1203

GND1

+

C950
100U

R995

NC

25V

+
C951

NC

25V

1N4148D946

R943

10

1/4W

R997
NC
1/4W

R946

Q993
NC

+90V

PS2

+55V

+13.5V

+13.5VS

JUMP10mm

PS1

+7VS
(HEATER)

PS2

+10V
(UP)

-11V

5

1

3

6

7

2,8

R963

GND1

1/2W

4

R983

10

1/2W

472Y1

GND5

R927

1M

1/2W

1/2W1M

D913

1N4148

R903

33K
1W

Q902

R904

47K

D905
FR107

2W

C907

0.01U
1KV

KSP44

R961
NC

Q960

NC

R962

NC

D960

NC

Q930
BT169D

A

KG

GND5

ZD930

HZ20-2

R909

2SK2761

1/4W10

D910

R910

4148

10

1/4W

C932

104Z

+

C909

220U
25V

GND5

GND5

R936

R932
20K

GND5

D908

FR104

1K

R920

10K

1/4W

GND5

D930

1N4148

+
C930
100U
25V

GND5

C922
102K

Q901

R907

0.33

3W_S

R908

2.2

1/4W

GND5

R930

240

1/4W

L903
BEAD

HSQ901

GND5

R911

C914
102K

C908

C925
.01U

1KV

D906

1/4W1K

NC

1KV

NC

1367

T901
ERL39

11

14

R905

NC
2W

GND5

9

U901 3842

C917

104Z

R912

27K

1/4W

2548

1/4W

R922
10K

R923

4.7K
1/4W

C928
330K

16

C900

D922

+

1N4148

C916
333J

MEF

GND5

D911

1N4148

D912

1N4148

C912
332J

PEN

R918

47

1/4W

C913
102K

GND5

4

3

LTV817M-B

GND5

U900

472Y1

1

2

GND1

R975

U904

KA431

No. 0419

VA-719 DEFLECTION & POWER BOARD - SHEET 3

25

P301

P302

1
2
3
4
5
6

8
7
6
5
4
3
2
1

ABL
+12V
+100V
+5V
HEATER
G1
GND
AFC

G-IN

R-IN

B-IN

R234

33

R235

33

R236

33

GND

C304

0.01U

GND

L304
BEAD

R245

4.7K

G

1

2

R

3

4

GND

B

5

20

19

18

17

16

1/4W

Q231

PH2369

G

GND

R

C237

0.01U

R252

1/4W

GND

R244

100

R251

1/4W

33

33

R242

2.7

R246

4.7K

R248

3.9K

GND

D237

1N4148

GND

U201

6

C241

47U

+

16V

7

8

9

10

15

14

13

12

11

GND

R253

B

33

1/4W

C252

C253

R239

C251

100
C236
100P

GND

R238

100

C235

100P

GND

D307

FR10-04

C308

0.01U

GND

C309

0.01U

GND

D238

FR10-04

+

C242

470U

16V

GND

W207

BEAD

8

VCC

9

IN3

10P

GND

7

IN2

10P

GND

3

IN1

10P

GND

6

GND3

2

GND2

GND

+
C301

22U

160V

GND

C307

0.01U

GND

U301

TDA9536

GND

VDD

OUT3

OUT2

OUT1

GND1

C302

0.01U
500V

R250

39

1/4W

SPG4

D301

1SS82

D302

1SS82

D303

1SS82

0.33UH

GND

R301

1/2W

L351

C306

0.01U
500V

*

*

*

R302

47

1/2W

L352

0.33U

R352

100

1/4W

SPG5

GND

R303

47

1/2W

D304

1SS82

D305

1SS82

D306

1SS82

L353

0.33UH

R353

100

1/4W

C310

1000P

2KV

GND

GND

47

R351

100

1/4W

SPG3

4

11

5

1

10

GND

L310
BEAD

GND

L311
BEAD

GND

R304

1K

1/2W

GND

SPG1

GND

SOCK1

B
R

G

SPG2

1.5KV

H.V

<FBT>

D308

C303

*

GND

GND

1000P

1KV

C305

0.01U
2KV

FR10-04

GND

GND

R305

10K

1/2W

GND1

D-FOCUS

G2

G4

G2

GND

<FBT>

<FBT>

<FBT>

TDA9210

L232
BEAD

L231
BEAD

GND

0.022U

R247

C238

680

MEF

D234

1N4148

C231

0.1U

R237

1K

+

C234
10U
16V

GND

C232

0.1U

C233

0.1U

D319

*

GND

GND

GND

GND

GND

GND

R231

75
1%

R232

75
1%

R233

75
1%

D231

1N4148

D232

1N4148

D233

1N4148

D235

1N4148

D236

1N4148

GINJET

(UMC/MYSON)

R205

100

R206

1/4W

GND

C202

0.22U
MEF

(0.01U)

MEF

R204

470

(5.6K)

1K

0.0047U

R203

*

(12K)

+
100U

GND

C210

(*)

C203

10V

GND

ZD201
HZ5C1

C204

0.01U

C201

*

(0.01U)

R202

*

(1M)

GND

R201

*

(5.6K)

C211

1000P

1

2

3

4

U202

5

6

16

15

14

13

12

11

GND

R212

R

100

R211

G

100

R210

B

100

R209

100

R214

1K

GND

5

H/O

4

OSD-SCL

3

OSD-SDA

2

V-OUT

1

P303

GND

No. 0419

C212

100P

GND

C209

0.01U

R213

1K

1/4W

GND

R207

100

R208

100

C206
100P

GND

C205

100P

GND

7

8

10

+

C207

C208

9

100U

GND

10V

0.01U

VQ-709 CRT BOARD

26

351

352

VA-719/VQ-709

310

301

TIE ON ITEM

303

306

27

304

305

308

007

101

005

006

008

003

001

009

307

311

103

007

104

005

006

002

004

28

THE UPDATED PARTS LIST

FOR THIS MODEL IS

AVAILABLE ON ESTA

Hitachi, Ltd. Tokyo, Japan

International Sales Division

THE HITACHI ATAGO BUILDING,

No. 15 –12 Nishi Shinbashi, 2 – Chome,

Minato – Ku, Tokyo 105-8430, Japan.

Tel: [phone]

HITACHI EUROPE LTD,

Whitebrook Park
Lower Cookham Road
Maidenhead
Berkshire
SL6 8YA

UNITED KINGDOM

Tel: [phone]
Fax: [phone]
Email: [e-mail]

HITACHI EUROPE GmbH

Munich Office
Dornacher Strasse 3
D-85622 Feldkirchen bei München

GERMANY

Tel: [phone]
Fax: [phone]
Hotline: [phone] (12ct/min)
Email: [e-mail]

HITACHI EUROPE srl

Via Tommaso Gulli N.39, 20147
Milano, Italia

ITALY

Tel: [phone]
Tel: [phone] Servizio Clienti
Fax: [phone]

Email: [e-mail]

HITACHI EUROPE S.A.S

Lyon Office
B.P. 45, 69671 BRON CEDEX
FRANCE
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Fax: [phone]
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HITACH EUROPE AB

Egebækgård
Egebækvej 98
DK-2850 Nærum

DENMARK

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Hitachi Europe Ltd

Bergensesteenweg 421
1600 Sint-Pieters-Leeuw

BELGIUM

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www.hitachidigitalmedia.com

HITACHI EUROPE S.A.

364 Kifissias Ave. & 1, Delfon Str.
152 33 Chalandri
Athens

GREECE

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HITACHI EUROPE S.A.

Gran Via Carlos III, 101-1
08028 Barcelona

SPAIN

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HITACHI HOME ELECTRONICS (NORDIC) AB
Box 77 S-164 94 Kista

SWEDEN

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HITACHI EUROPE LTD (Norway) AB
STRANDVEIEN 18
1366 Lysaker
NORWAY
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HITACHI EUROPE AB

Neopoli / Niemenkatu 73
FIN-15140 Lahti

FINLAND

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HITACHI EUROPE LTD

Na Sychrove 975/8
101 27 Pr aha 10 – Bohdalec

CZECH REPUBLIC

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