DOWNLOAD Sony KF-E42A10 / KF-E50A10 Service Manual ↓ Size: 5.38 MB | Pages: 60 in PDF or view online for FREE

– 5 –

The projection lamp, which illuminates the picture, 
has a limited life.
If the screen becomes dark, the color looks unusual, or 
the LAMP indicator on the front of the projection TV 
flashes, it is time to replace the lamp with a new one 
(not supplied).

Electric appliances can cause fire or high temperature, 
resulting in injury or death. Be sure to follow the instructions 
below.

Use a Sony XL-2400 replacement lamp (not supplied) for 
replacement. Use of any other lamp may damage the 
projection TV.
Do not remove the lamp for any purpose other than 
replacement. Doing so may cause injury or fire.
Do not put flammable materials and metal objects inside 
the lamp receptacle of the TV after removing the lamp. 
Doing so may cause fire or electrical shock. Do not touch 
the lamp receptable once the lamp has been removed.
When the lamp eventually burns out, you may hear a 
noticeable pop sound. This is normal and it is inherent to 
this type of lamp.
In rare instances, the bulb may pop inside the lamp unit, 
but the lamp unit is designed to contain all of the broken 
glass pieces inside the lamp unit.

Turn off the power on the main unit. Wait 
several minutes, then unplug the power 
cord.
(The cooling fan will continue to blow for 
about two minutes after turning the power 
off.)

Wait at least 30 minutes after unplugging 
the power cord to allow the lamp to cool 
down before replacing it. To avoid being 
burned, do not touch the lamp receptable 
once the lamp has been removed. 

Take the new lamp out of the box. 
Do not touch the glass portion of the new 
lamp.

Do not shake the lamp. Vibration can damage the 
lamp or shorten its life.
Avoid touching the front glass of a new lamp or the 
glass of the lamp receptacle. This may reduce picture 
quality or lamp life.

Remove the outside lamp cover.

Remove the lamp door.

Turn the knob counterclockwise to OPEN and pull 
out the cover.

Disposing of the lamp
This product contains mercury. For disposal or 
recycling information, please contact your local 
authorities.

Do not leave the used lamp near flammable 
materials or within the reach of children.
Do not pour water onto the used lamp or put any 
object inside the lamp. Doing so may cause the 
lamp to burst.

Lamp door

– 6 –

Pull out the lamp.

Hook a finger through the loop of the lamp handle 
and pull the handle upwards. Then pull the lamp 
straight out.

  The lamp is very hot immediately after use. Never 

touch the glass portion of the lamp or the surrounding 
parts.

  After the used lamp has cooled, place it into the empty 

box of the replacement lamp. Never put the used lamp 
into a plastic bag.

Put the new lamp into its place.

Mount the new lamp securely. Failure to do so 
may cause a fire or the screen to go dark.

If the lamp is not securely reattached, the self-diagnostic 
function may be triggered and the POWER/STANDBY 
indicator flashes three times.

Reattach the lamp door.

Turn the knob back to CLOSE and secure the 
cover.

Put the outside lamp cover back in its 
place.

  Consult your Sony dealer for a Sony XL-2400 

replacement lamp.

  Take great care when replacing the lamp or plugging 

in/unplugging the connecting cords. Rough handling 
may cause the TV to fall, damaging the TV, the TV 
stand and the floor.

– 7 –

These servicing instructions are for use by qualified service per-
sonnel only.
To reduce the risk of electric shock, do not perform any servicing
other than that contained in the operating instructions unless you
are qualified to do so.

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.

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
THESE COMPONENTS 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 SAFE OPERATION ARE IDENTIFIED IN THIS
MANUAL. FOLLOW THESE PROCEDURES WHENEVER CRITI-
CAL COMPONENTS ARE REPLACED OR IMPROPER OPERA-
TION IS SUSPECTED.

– 8 –

Section

Title

Page

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Section

Title

Page

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.....................

10

2-1.

Rear Cover ..........................................................

15

2-2.

Service Position ..................................................

16

2-3.

Terminal Bracket ................................................

17

2-4.

HPC Board ..........................................................

17

2-5.

AS Board ............................................................

17

2-6.

D.C Fan (Under The AS Board) ........................

18

2-7.

B Block ...............................................................

18

2-8.

B Board ...............................................................

18

2-9.

B and QG Boards ...............................................

19

2-10. QG Board ............................................................

19

2-11. P Board ...............................................................

19

2-12. AGU Board .........................................................

19

2-13. DC Fan ................................................................

20

2-14. Main Duct (R) ....................................................

20

2-15. Duch Block Assembly

(Without Main Duct (R)) ...................................

20

2-16. D.C. Fan (Sirocco) .............................................

21

2-17. Speaker Grill Block Assembly ...........................

21

2-18. HA and HB Boards ............................................

21

2-19. Screen Frame Block Assembly ..........................

22

2-20. Speakers ..............................................................

22

2-21. Rear Cover (With Mirror) ..................................

22

2-22. How to Replace Optics Unit ..............................

23

2-22-1.  Remove Lamp Bloxk (1) ............................

23

2-22-2. Remove Lamp Bloxk (2) ............................

23

2-22-3. Remove Lamp Bloxk (3) ............................

23

2-22-4. Remove Cover, Rear (1) .............................

23

2-22-5. Remove Cover, Rear (1-2) ..........................

23

2-22-6. Remove Cover, Rear (2) .............................

23

2-22-7. Remove Stay (L), Side ................................

24

2-22-8. Pull Out Some Blocks (1) ...........................

24

2-22-9. Pull Out Some Blocks (2) ...........................

24

2-22-10. Pull Out Some Blocks (3) ...........................

24

2-22-11. Pull Out Some Blocks (4) ...........................

25

2-22-12. Pull Out Some Blocks (5) ...........................

25

2-22-13. Pull Out Some Blocks (6) ...........................

25

2-22-14. Pull Out Some Blocks (7) ...........................

26

2-22-15. Pull Out Some Blocks (8) ...........................

26

2-22-16. Pull Out Some Blocks (9) ...........................

26

2-24-18. Remove Optics Unit ....................................

26

3-1.

Electrical Adjustment by Remote Commander ....

27

3-1-1. Method of Setting the Service Adjustment

Mode ...............................................................

27

3-1-2. Service Mode Adjustment ............................

27

3-1-3. Memory Write Confirmation Method ..........

27

3-1-4. Adjusting Buttons and Indicator ...................

27

3-2.

To read Lamp and Panel time ............................

28

3-3.

Test Reset ...........................................................

28

4-1.

Block Diagram (1) ..............................................

29

Block Diagram (2) ..............................................

30

Block Diagram (3) ..............................................

31

Block Diagram (4) ..............................................

32

Block Diagram (5) ..............................................

33

4-2.

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

34

4-3.

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

35

4-4.

Schematic Diagrams ...........................................

35

(1)

Schematic Diagram of AS (1/2) Board ..............

36

(2)

Schematic Diagram of AS (2/2) Board ..............

37

(3)

Schematic Diagram of GT (1/2) Board ............

38

(4)

Schematic Diagram of GT (2/2) Board ............

39

(5)

Schematic Diagram of HA Board .....................

40

(6)

Schematic Diagram of HB Board ......................

41

(7)

Schematic Diagram of HC Board .....................

42

(8)

Schematic Diagram of S2 Board ......................

43

(9)

Schematic Diagram of T1, T2 Boards ..............

44

4-5.

Printed Wiring Boards ........................................

45

(1)

AS Board ............................................................

45

(2)

GT Boards ..........................................................

46

(3)

HA, HB Boards ..................................................

47

(4)

HC, S2, T1, T2 Boards .......................................

48

4-6.

Semiconductors ..................................................

49