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1.  Input color-bar signal at 75%.
2.  Activate the Service Adjustment Mode.
3.  Set (PIC) to Max and (COL) to 50%. 
4.  Connect an oscilloscope probe to C Board, CN705Pin  4  Blue Out. 
5.  Select the SHUE and SCOL item with  1 and  4 .
6.  While showing the SHUE item, adjust the waveform with  1 and  4 

until the second and third bars show the same level 

(V2 = V3 < 0.15Vp-p).  

7.  While showing the SCOL item, adjust the waveform with  3 and  6 

until the first and fourth bars show the same level 

(V1 = V4 < 0.15Vp-p).  Increase 1 step after adjustment for 34FV250 

and 38FV250 models.

NOTE: SCOL must be adjusted in all modes NTSC, PAL-M, and PAL-N.
 

V1 V2 V3 V4

8.  Press  MUTING  then  ENTER  to save into the memory.

1.  Input a crosshatch signal.
2.  Activate the Service Adjustment Mode.
3.  Select the VSIZ item with  1 and  4 .
4.  Adjust value of VPOS with  1 and  4 for the best vertical center.
5.  Press  MUTING  then  ENTER  to save into the memory.
 

Perform this adjustment after performing H. Frequency 

(Free Run) Check.

1.  Input a crosshatch signal.
2.  Activate the Service Adjustment Mode.
3.  Select the VPOS item with  1 and  4 .
4.  Adjust value of VPOS with  3 and  6 for the best vertical center.
5.  Press  MUTING  then  ENTER  to save into the memory.

Perform this adjustment after performing H. Frequency 

(Free Run) Check.

1.  Input a crosshatch signal.
2.  Activate the Service Adjustment Mode.
3.  Select the HPOS item with  1 and  4 .
4.  Adjust the value of HPOS with  3 and  6 for the best horizontal center.
5.  Press  MUTING  then  ENTER  to save into the memory.

1.  Input a monoscope signal.
2.  Activate the Service Adjustment Mode.
3.  Select HSIZ with  1 and  4 .
4.  Adjust with  3 and  6 for the best horizontal size.
5.  Press  MUTING  then  ENTER  to save into the memory.

1.  Input a crosshatch signal.
2.  Activate the Service Adjustment Mode.
3.  Select VLIN, SCOR, PAMP, and HTRP with with  1 and  4.
4.  Adjust with  3 and  6 for the best horizontal size.
5.  Press  MUTING  then  ENTER  to save into the memory.

V LINEARITY (VLIN)

V CORRECTION (SCOR)

PIN AMP (PAMP)

HORIZONTAL TRAPEZOID (HTRP)

1.  Input a crosshatch signal.
2.  Activate the Service Adjustment Mode.
3.  Select VANG, VBOW, UPIN, and LPIN with  1 and  4.
4.  Adjust with  3 and  6 for the best picture.
5.  Press  MUTING  then  ENTER  to save into the memory.

V ANGLE (VANG)

V BOW (VBOW)

UPPER PIN (UPIN)

LOW PIN (LPIN)

1.  After completing all adjustments, press  0 then  ENTER  .
Read From Memory

Green

Red

ENTER

0

service     defl     vbow

ntsc

vchp

Category

Display 

Item

Mode

Item 

Data

Signal

Type

00000000 00000000

7

C Board

V Board

HS Board

(KV-29FS100/

34FS100 Only)

A Board

GK Board

HU Board 

(KV-29FV300/

34FV250/

38FV250 Only)

All capacitors are in µF unless otherwise noted. pF : µµF 50V or less are 

not indicated except for electrolytics and tantalums.
All electrolytics are in 50V unless otherwise specified.
All resistors are in ohms.  kΩ=1000Ω, MΩ=1000kΩ
Indication of resistance, which does not have one for rating electrical 

power, is as follows: 

Pitch : 5mm 

 

 

 

 

 

 

Rating electrical power : 

1

/

 4 

W

1

/

 4 

W in resistance, 

1

/

10 

W and 

1

/

 8 

W in chip resistance.

: nonflammable resistor

 : fusible resistor

 : internal component

 : panel designation and adjustment for repair

 : earth ground
 : earth-chassis

All variable and adjustable resistors have characteristic curve B, unless 

otherwise noted.
Readings are taken with a color-bar signal input.
Readings are taken with a 10MΩ digital multimeter.
Voltages are DC with respect to ground unless otherwise noted.
Voltage variations may be noted due to normal production tolerances.
All voltages are in V.
S : Measurement impossibility.

: B+line

: B-line (Actual measured value may be different).

: signal path (RF)

Circled numbers are waveform references.

!

 

Les composants identifies per un trame et une marque 

!

The components identified by X in this basic schematic diagram have 

been carefully factory-selected for each set in order to satisfy regulations 

regarding X-ray radiation. Should replacement be necessary, replace 

only with the value originally used.

When replacing components identified by Y, make the necessary 

adjustments as indicated.  If the results do not meet the specified value, 

change the component identified by X and repeat the adjustment until 

the specified value is achieved. 
(Refer to R530 and R531 adjustment on page 16.)

When replacing the parts listed in the table below, it is important to 

perform the related adjustments.

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TV-8

  V-Out

AN5522 (24-27”)

STV9379(32-36”)

L.E.D.

Menu

CTRL

I.R.

  H-Out

2SD2634(27”)

2SD2645(32-36”)

DEC

5VDC

TV-8

D.G.C.

AC Line

L.F.T

L

R

Tuner

FRONT

V2

L R

AUDIO OUT

H.Drive

Energy Star

Relay

TH

P

Rect.

2

2

2

2

S

4

2

I2C Bus

2

Vd

Hp

E/W

2

Power Supply

 5V 

Reg.

   5V

STBY

SRT

Pin

Out

2SC4159

+13v

Rect.
-13v

Rect.

  OCP

Horiz.

Vert.

Speakers

2

R

L

IR Head

phones

2

2

Low B 

Rect.
Audio

Rect.

  B+ 

Rect.

Y/C

Sub det-Out

200v

Rect.

  FBT

FBT

3

RGB

3

RGB

V1

L

R

REAR

L

R

YUV AUDIO

YUV

Y

U V

3

2

Mir
co

processor

M306V5

M

E

Video processor

CXA2154/5AS

27”-NX4521

32-36”-NX4600

2

 CVBS,FSC

2

 Y/C

3L comb

TC90A69.

3

YUV

PinP Proc.

M65665FP.

P board

Iprot

G board

3D comb

MN82832.

C

 Yout

BC board

Sub woofer

(for FV only)

 9V 

Reg.

Tuner

L

S

P board

Det. out

REAR

V3

L

R

2

RGB Driver

TDA6108

IR modulator

BA3308

Emiter

T board

2

SR

T

 T

A

12

26

N

 Yin

V

L

R

M

O

U

T

To DY

To CRT

To CRT