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– 5 –

OCP

Low B and +B line detect DET SHORT, and shut-down POWER ON RELAY.

Reset by turning power on/off.

In case of +B is loaded approx. 1.3A or more, microcomputer detects it via IC651.

OVP

In case of +B becomes approx. 150V or more, POWER ON RELAY shuts down and microcomputer detects it via IC651.

Reset by turning power on/off just the same as OCP.

V Stop

In case of microcomputer detects 2 seconds or more interval of V Pulse, Reference Pulse turns off by turning off the picture

signal in YC Jungle IC (IC206).

After the picture signal turns off, V Pulse is regenerated 2 seconds or more, the picture signal turns on.

AKB

IK detection.  Makes LED blinking in case of microcomputer doesn’t detect IK returns of IC206 CXA2147Q 30 seconds or more.

H Stop

In case of HV becomes 33kV or more, IC502 detects it and shut-down H Drive Pulse.

Microcomputer receives H Stop data from IC206 and makes LED blinking.

Audio

In case of DC component overlaps the output of Audio Amp., microcomputer detects it and makes LED blinking.

Microcomputer forces to shut down the power.

55

8

20

21

22

49
47
50

3

27

34

35

43

5. AKB

5. AKB

3. OVP

2. OCP

4. V.STOP (V Pulse)

Audio

IC002

µ

Processor

IC206

CXA2147

YCJ

Q006

D1201

TIMER/STANDBY

IC004

EEPROM

IC502

HV Detector

Q1505

V Pulse Buffer

IC651

OVP Buffer
OCP Buffer

C Board

DC Detect

IC1509
V Drive

IC406

Audio AMP

6. H STOP

6. HV STOP

BUS

4

48

OVP DETECT

OCP DETECT

– 6 –

(CAUTION)

SHORT CIRCUIT THE ANODE OF THE PICTURE TUBE AND THE
ANODE CAP TO THE METAL CHASSIS, CRT SHIELD, OR CAR-
BON PAINTED ON THE CRT, AFTER REMOVING THE ANODE.

WARNING!!

AN ISOLATION TRANSFORMER SHOULD BE USED DURING
ANY SERVICE TO AVOID POSSIBLE SHOCK HAZARD, BE-
CAUSE OF LIVE CHASSIS.
THE CHASSIS OF THIS RECElVER IS DIRECTLY CONNECTED
TO THE AC POWER LINE.

Section

Title

Page

––––––

––––

––––

Section

Title

Page

––––––

––––

––––

SELF DIAGNOSIS FUNCTION ............................................ 3

Remote Control ....................................................................... 7
Precautions .............................................................................. 8
Installing and Connecting the Projection TV .......................... 8
Basic Set Up .......................................................................... 12
Using Your New Projection TV ............................................ 14
Adjusting Your SET UP (menus) .......................................... 16
Operating Video Equipment .................................................. 22
Operating a Cable Box .......................................................... 23
Troubleshooting .................................................................... 23

2-1.

Rear Board Removal ................................................. 25

2-2.

Chassis Assy Removal .............................................. 25

2-3.

Service Position ......................................................... 25

2-4.

HA Board and
HB Board Removal (KP-53SV75C) ......................... 25

2-5.

HA,HB and FB Board Removal (KP-43T75C)......... 26

2-6.

Mirror Cover Removal .............................................. 26

2-7.

Beznet Assy Removal ................................................ 26

2-8.

HC Board and S Board Removal .............................. 26

2-9.

A, G and FA Boards Removal ................................... 27

2-10.

Picture Tube Removal ............................................... 27

2-11.

High-Voltage Cable Installation and Removal .......... 27

3-1.

Screen Voltage Adjustment (Coarse Adjustment) ..... 28

3-2.

Screen (G2) Adjustment (Fine Adjustment) .............. 28

3-3.

Deflection York Tilt Adjustment ............................... 28

3-4.

Focus Lens Adjustment ............................................. 28

3-5.

Focus VR Adjustment ............................................... 29

3-6.

2-Pole Magnet Adjustment (Green, Red) .................. 29

3-7.

4-Pole Magnet Adjustment ........................................ 29

3-8.

Defocus Adjustment (Blue) ....................................... 29

3-9.

Electrical Adjustment by Remote Commander ......... 30

3-10.

Registration Adjustment(PJE) ................................... 35

3-11.

Auto Registration Error Code List ............................ 38

4-1.

HV Regulation Circuit Check and Adjustment ......... 39

4-2.

HV Hold Down Circuit Operation and Adjustment .. 39

4-3.

+B Max Voltage Confirmation .................................. 40

4-4.

+B OVP Confirmation ............................................... 40

5-1.

TV Input Sub Contrast Adjustment
(VPNT-SCON) .......................................................... 41

5-2.

VIDEO Input Sub-HUE and Sub-Color Adjustment
(VPTR-SHUE, SCOL) .............................................. 41

5-3.

Component input Sub-HUE and Sub-Color
Adjustment (DAC-UVSH, UVSC) ........................... 41

5-4.

P&P Sub Contrast Adjustment (SC-SYDR) ............. 41

5-5.

Sub-HUE, Sub-Color and Main Contrast
Adjustment (MC-MYDR, MSHU, MSCL,
SC-SSHU,SSCL) ...................................................... 42

5-6.

BAR DISPLAY Position Adjustment
 (OP-DISP) ................................................................ 42

5-7.

PIP Position Adjustment (PI-PIPH, PIPV) ................ 42

6-1.

Block Diagram (1) ..................................................... 43
Block Diagram (2) ..................................................... 45
Block Diagram (3) ..................................................... 51
Block Diagram (4) ..................................................... 55
Block Diagram (5) ..................................................... 58

6-2.

Frame Schematic Diagram ........................................ 61

6-3.

Circuit Boards Location ............................................ 64

6-4.

Printed Wiring Boards and Schematic Diagrams ...... 64
• A (1/3)Board ........................................................... 65
• A (2/3)Board ........................................................... 69
• A (3/3)Board ........................................................... 73
• G Board ................................................................... 81
• CG Board ................................................................ 88
• CR Board ................................................................ 89
• CB Board ................................................................ 89
• HA Board ................................................................ 91
• HC Board ................................................................ 91
• HB Board ................................................................ 92
• FA Board ................................................................. 93

6-5.

Semiconductors ......................................................... 94

7-1.

Cover (KP-43T75C) .................................................. 96

7-2.

Cover (Except KP-43T75C) ...................................... 97

7-3.

Chassis (KP-43T75C) ............................................... 98

7-4.

Chassis (Except KP-43T75C) ................................... 99

7-5.

Picture Tube ............................................................ 100

8. ELECTRICAL PARTS LIST ................................. 101

SAFETY-RELATED COMPONENT WARNING!!

COMPONENTS IDENTIFIED BY SHADING AND MARK ! ON THE
SCHEMATIC DIAGRAMS, EXPLODED VIEWS AND IN THE
PARTS LIST ARE CRITICAL TO SAFE OPERATION. REPLACE
THESECOMPONENTS WITH SONY PARTS WHOSE PART NUM-
BERS APPEAR AS SHOWN IN THIS MANUAL OR IN SUPPLE-
MENTS PUBLISHED BY SONY. CIRCUIT ADJUSTMENTS THAT
ARE CRITICAL TO SAFEOPERATION ARE IDENTIFIED IN THIS
MANUAL. FOLLOW THESE PROCEDURES WHENEVER CRITI-
CAL COMPONENTS ARE REPLACED OR IMPROPER OPERA-
TION IS SUSPECTED.

– 7 –

The operating instructions mentioned here are par tial abstracts from the
Operating Instructions Manual. The page numbers of the Operating
Instruction Manual remain as in the manual. (Part no : 4-076-754-11)

Names of the buttons on the remote control are
presented in different colors to represent the
available functions.

Transparent .... Press to select the component

you want to control; e.g. VTR
(VCR)/MDP/DVD Player,
CABLE, or projection TV.

Green ............... Buttons relevant to power

operations, like turning the
projection TV, CABLE, or VTR
(VCR)/MDP/DVD Player on
or off

White ............... TV/VTR (VCR)/MDP/DVD

Player/CABLE operation
buttons

Yellow .............. PIP operation buttons
Blue .................. SAT operation buttons*
Green ............... S-Link operation buttons
Pink .................. DVD Player operation buttons

POWER*

FUNCTION*

GUIDE*

V/v/B/b and

INDEX*

* 

The blue-labeled SAT/CABLE

(POWER), SAT/CABLE
(FUNCTION), INDEX and
GUIDE buttons cannot operate
a satellite receiver (SAT) in
Argentine and Chile even if it is
connected to the projection TV.

m

N

M

x

z

X

We recommend that you carefully review the
contents of the following four sections in the
order provided to ensure that you fully
understand the operation of your new
projection TV.

This section guides you through your
initial set up. It shows you how to install
your projection TV, to connect your new
components and to connect to the
antenna and cable.

This section teaches you the basic skills
needed to operate your new projection
TV, including Auto Set Up. It shows you
how to operate the remote control’s
special functions.

This section shows you how to begin
using your new projection TV. It shows
you how to use your remote control’s
features.

Thank you for purchasing the Sony Color
Rear Video Projection TV.

This manual is for models KP-43T75A, KP-
43T75C, KP-53SV75A, KP-53SV75C and KP-
61SV75C.

Model KP-53SV75A is used for illustration
purposes.

The features you will enjoy include:

• FLASH FOCUS, allowing you to adjust

convergence automatically.

• Picture-in-Picture (PIP), allowing you to

view another TV channel, video or cable
image as a window picture.

• Favorite Channel, allowing you to

view and choose from eight of your
favorite channels

• Y/P

B

/P

R

 inputs for DVD Player

connections.

• Three AUDIO/VIDEO/S VIDEO inputs.

This section teaches you how to access
on-screen menus and adjust your
projection TV’s settings.

– 8 –

• Operate the projection TV only on 110-

220 V AC.

• The plug is designed, for safety purposes,

to fit into the wall outlet only one way. If
you are unable to insert the plug fully
into the outlet, contact Sony Authorized
Service Center.

• If any liquid or solid object should fall

inside the cabinet, unplug the projection
TV immediately and have it checked by
Sony Authorized Service Center before
operating it further.

• If you will not be using the projection TV

for several days, disconnect the power by
pulling the plug itself. Never pull on the
cord.

Clean the cabinet of the projection TV with a
dry soft cloth.  To remove dust from the
screen, wipe it gently with a soft cloth.
Stubborn stains may be removed with a cloth
slightly dampened with solution of mild
soap and warm water.  Never use strong
solvents such as thinner or benzine for
cleaning.

If the picture becomes dark after using the
projection TV for a long period of time, it
may be necessary to clean the inside of the
projection TV. Consult qualified service
personnel.

• To prevent internal heat buildup, do not

block the ventilation openings.

• Do not install the projection TV in a hot

or humid place, or in a place subject to
excessive dust or mechanical vibration.

• Avoid operating the projection TV at

temperatures below 5° C (41° F).

• If the projection TV is transported

directly from a cold to a warm location,
or if the room temperature changes
suddenly, the picture may be blurred or
show poor color. In this case, please wait
a few hours to let the moisture evaporate
before turning on the projection TV.

• To obtain the best picture, do not expose

the screen to direct illumination or direct
sunlight. It is recommended to use spot
lighting directed down from the ceiling
or to cover the windows that face the
screen with opaque drapery. It is
desirable to install the projection TV in a
room where the floor and walls are not of
a reflective material.

Carrying the projection TV requires three or
more people.

The projection TV has been equipped with
casters for easy movement on a hard surface.
Please move your projection TV using the
casters.

°

°

°

°

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