DOWNLOAD Sony KP-44PS2 / KP-44PS2U / KP-51PS2 Service Manual ↓ Size: 15.98 MB | Pages: 126 in PDF or view online for FREE

Model
KP-44PS2 KP-44PS2U KP-51PS2
Pages
126
Size
15.98 MB
Type
PDF
Document
Service Manual
Brand
Device
TV
File
kp-44ps2-kp-44ps2u-kp-51ps2.pdf
Date
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Sony KP-44PS2 / KP-44PS2U / KP-51PS2 Service Manual ▷ View online

– 25 –
KP-44PS2/44PS2U/51PS2
RM-903
3-10. AP  AND  D  BOARDS  REMOVAL
3-9. TERMINAL  BOARD  REMOVAL
1
RF cable
4
Terminal board
3
Two screws
(+BVTP 3 x 12)
2
Five screws
(+BVTP 4 x 16)
5
Screw
(+BVTP 3 x 12)
1
Screw
(+BVTP 3 x 12)
5
Screw
(+BVTP 3 x 12)
6
Three claws
2
Printed circuit
board support
3
Claw
4
AP board
7
D board
– 26 –
KP-44PS2/44PS2U/51PS2
RM-903
3-11. G  BOARD  REMOVAL
3-12. J,  B3,  E,  M  AND  S  BOARDS  REMOVAL
2
G board
1
Five claws
6
Claw
7
B3 board
5
Shield case
4
Four screws
(+BVTP 3 x 8)
9
E board
8
Claw
0
Claw
!=
Claw
2
Claw
1
Hook
!-
M board
![
S board
3
J board
– 27 –
KP-44PS2/44PS2U/51PS2
RM-903
3-14. HIGH-VOLTAGE
CABLE  REMOVAL
AND  INSTALLATION
3-13. A  BOARD  REMOVAL
1
Rubber cap
2
HV cable 
turn 90
°
2
Rubber cap
1
HV cable 
Hook
Gutter
(1) Removal
(2) Installation
Removing the arrow-marked screw is strictly inhibited.
If removed, it may cause liquid spill
1
Four screws
(+BVTP 4 x 16)
2
Lens
6
Four screws
(+BVTP 4 x 16)
7
Picture 
tube
5
Deflection 
yoke
4
Neck 
assembly
3
CR board
3-15. PICTURE  TUBE  REMOVAL
3
A board
2
Two claws
1
Screw
(+BVTP 3 x 12)
– 28 –
KP-44PS2/44PS2U/51PS2
RM-903
SECTION  4
SET-UP  ADJUSTMENTS
4-1. SCREEN  VOLTAGE  ADJUSTMENT
(ROUGH  ALIGNMENT)
1. Receive the Monoscope signal.
2. Set 50% BRIGHTNESS and minimum PICTURE.
3. Turn the red VR on the focus pack all the way to the left and
then gradually turn it to the right until the point where you
can see the retrace line.
4. Next gradually turn it to the left to the position where the
retrace line disappears.
Fig. 4-1
4-2. SCREEN (G2) ADJUSTMENT
1. Turn on the power of the set.
2. Select VIDEO1 mode without signals.
3. Supply DC 175 ±0.5 V from external power supply to
TP7103 (KR), TP7203 (KG) or TP7303 (KB) of CR board,
CG board and CB board.
3. Adjust red, green and blue screen voltage to until retrace
line disappears with screen VR on the focus pack.
4-4. DEFLECTION YOKE TILT ADJUSTMENT
1. Receive the Monoscope signal.
2. Place the caps on the red and blue lens so that only the green
color.
3. Loosen the deflection yoke setscrew and align the tilt of the
Deflection yoke so that the bars at the center of the
monoscope pattern are horizontal.
4. After aligning the deflection yoke, fasten it securely to the
funnel-shaped portion (neck) of the CRT.
5. The tilt of the deflection yoke for red and blue is aligned the
same as was done for green.
Fig. 4-5
Neck Assy
Make sure deflection yoke is 
touching CRT closely.
2-pole magnet
4-pole magnet
Deflection yoke
Anode cap
R
G
SCREEN
B
R
G
FOCUS
Focus Pack
B
Fig. 4-4
Lens
Fig. 4-3
Fig. 4-2
Test signal
Minimize both A and B.
A
B
4-3. FOCUS ROUGH ADJUSTMENT
1. Loose the lens screw.
2. Enter the TT mode. (Refer to SECTION 6.)
3. Place the caps on the red and blue lens so that only the green
color is shown.
4. Press “MENU” twice on the commander and select “Device
Register Setting” 
b  “Projector Engine”, press “6” three
times on the Commander to display the test signal (cross-
hatch) on the screen.
5. Rotate the green lens and align to obtain the best lens focus
at the center area.
6. Rotate the green focus VR on the focus pack and align to
obtain the best electrical focus in the top right corner.
7. Perform the same alignment for red and blue lenses and elec-
tric focus.
8. Fix lens screw.
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