Sony KP-51WS500 / KP-57WS500 / KP-65WS500 Service Manual ▷ View online
— 14 —
KP-51WS500/57WS500/65WS500
1-13. PICTURE TUBE REMOVAL
Two screws
(+BVTP 3x12)
Four screws
(+BVTP 4x12)
Picture tube
Picture tube
Deflection yoke
Neck assy
CR board
V board
Lens
Lens
Four screws,
dome washer
HEX tap 4x20
HEX tap 4x20
Four screws,
dome washer HEX tap 4x20
Four screws,
dome washer HEX tap 4x20
CAUTION
Removing the arrow-marked
screws is strictly prohibited.
If removed, it may cause liquid spill.
screws is strictly prohibited.
If removed, it may cause liquid spill.
2
4
5
11
12
10
3
9
8
7
6
1
1-14. HIGH-VOLTAGE CABLE INSTALLATION AND REMOVAL
(1) Removal
Rubber cap
HV cable
turn 90°
HV cable
Gutter
Hook
(2) Installation
1
2
1
— 15 —
KP-51WS500/57WS500/65WS500
SECTION 2: SET-UP ADJUSTMENTS
2-1. SCREEN VOLTAGE ADJUSTMENT
(COARSE
(COARSE
ADJUSTMENT)
1. Receive the Monoscope signal..
2. Set BRIGHTNESS to 50% and PICTURE to minimum.
3. Turn the red VR on the focus block all the way to the left and then
2. Set BRIGHTNESS to 50% and PICTURE to minimum.
3. Turn the red VR on the focus block all the way to the left and then
gradually turn it to the right until the retrace line is barely visible.
4. Gradually turn the control to the left until the retrace line disappears.
R
G
B
SCREEN
R
G
B
FOCUS
FOCUS Block
2-2. SCREEN (G2) ADJUSTMENT
(FINE
(FINE
ADJUSTMENT)
If the jig described below is available, it is recommended that the G2
Fine Mode Adjustment be performed to set the screen controls to their
optimal condition. If desired, you can build the jig illustrated below,
using 3-watt resistors. Please note that if the proper voltage is not
obtained with the listed resistor’s values, then increase or decrease one
of the values in the resistor network to obtain the correct voltage.
Fine Mode Adjustment be performed to set the screen controls to their
optimal condition. If desired, you can build the jig illustrated below,
using 3-watt resistors. Please note that if the proper voltage is not
obtained with the listed resistor’s values, then increase or decrease one
of the values in the resistor network to obtain the correct voltage.
1. Select VIDEO-1 mode no signal applied (the screen must be black).
2. Connect the G2 JIG.
3. SW on JIG.
4. Connect an oscilloscope to the TP7101(KR), TP7202(KG) and
2. Connect the G2 JIG.
3. SW on JIG.
4. Connect an oscilloscope to the TP7101(KR), TP7202(KG) and
TP7301(KB) of CR board, CG board, and CB board.
5. Adjust red, green, and blue screen voltage to 177.5+/-0.5V with screen
VR on the focus block.
177.5V +/- 0.5V
G2 JIG
TP7202
(210V)
TO CG BOARD
GND
3.3k
3.9k
5.6k
6.8k
SW
K
GND
pedestal level
All resistors are 3W type
2-3. DEFLECTION YOKE TILT ADJUSTMENT
1. Connect the color bar generator monoscope pattern to Video 1 input.
2. Cover the red and blue CRT lenses with lens caps to allow only green
to show (or use the method shown in the note below for turning off the
CRTs individually without using lens caps).
CRTs individually without using lens caps).
3. Loosen the CRT’s deß ection yoke set screw and align the tilt of
the deß ection yoke so that the horizontal bars at the center of the
monoscope pattern are horizontal.
monoscope pattern are horizontal.
4. After aligning the deß ection yoke fasten it securely to the
funnel-shaped portion (neck) of the CRT.
The tilt of the deß ection yoke is aligned in the mode.
5. Cover the green and blue CRT lenses with lens caps to allow only
5. Cover the green and blue CRT lenses with lens caps to allow only
green to show (or use the method shown in the note below for turning
off the CRTs individually without using lens caps), then repeat steps
3 and 4 for the red CRT.
off the CRTs individually without using lens caps), then repeat steps
3 and 4 for the red CRT.
Cover the green and red CRT lenses with lens caps to allow only
green to show (or use the method shown in the note below for turning
off the CRTs individually without using lens caps), then repeat steps
3 and 4 for the blue CRT.
off the CRTs individually without using lens caps), then repeat steps
3 and 4 for the blue CRT.
Note: If lens caps are unavailable, you can cut off the unnecessary color
beams by controlling the service mode 2150P-2 1 RGBS.
beams by controlling the service mode 2150P-2 1 RGBS.
2-pole magnet
4-pole magnet
Deflection yoke
Anode cap
Centering magnet
— 16 —
KP-51WS500/57WS500/65WS500
2-4. FOCUS LENS ADJUSTMENT
In this adjustment, use the remote commander while in service mode.
For details on the usage of the service mode and the remote
commander, please refer to section
2-10. ELECTRICAL ADJUSTMENTS BY REMOTE COMMANDER.
For details on the usage of the service mode and the remote
commander, please refer to section
2-10. ELECTRICAL ADJUSTMENTS BY REMOTE COMMANDER.
1. Loosen the lens screw.
2. Cover the red and blue CRT lenses with lens caps to allow only green
2. Cover the red and blue CRT lenses with lens caps to allow only green
to show (or use the method shown in the note below for turning off the
CRTs individually without using lens caps).
CRTs individually without using lens caps).
3. Turn the green lens to adjust to the optimum focus point with the
crosshatch signal.
4. Tighten the lens screw.
5. Cover the green and blue CRT lenses with the lens caps to allow only
5. Cover the green and blue CRT lenses with the lens caps to allow only
red to show (or use the method shown in the note below for turning off
the CRTs individually without using lens caps).
the CRTs individually without using lens caps).
6. Turn the red lens to adjust to the optimum focus point with the
crosshatch signal.
7. Tighten the lens screw.
8. Cover the green and red CRT lenses with the lens caps to allow only
8. Cover the green and red CRT lenses with the lens caps to allow only
blue to show (or use the method shown in the note below for turning
off the CRTs individually without using lens caps).
off the CRTs individually without using lens caps).
9. Turn the blue lens to adjust to the optimum focus point with the
crosshatch signal.
10. Tighten the lens screw.
11. After adjusting the items:
2-5. FOCUS VR ADJUSTMENT,
2-6. 2-POLE MAGNET ADJUSTMENT,
2-8. 4-POLE MAGNET ADJUSTMENT,
reconÞ rm the optimum focus point and adjust again if necessary.
11. After adjusting the items:
2-5. FOCUS VR ADJUSTMENT,
2-6. 2-POLE MAGNET ADJUSTMENT,
2-8. 4-POLE MAGNET ADJUSTMENT,
reconÞ rm the optimum focus point and adjust again if necessary.
* Every time 6 is pressed, the test signal changes to:
“crosshatch+video signal”
→
“crosshatch+borderline(black)”
→
”crosshatch(black)”
→
“dots(black)”
→
off
Test Signal
Note: If lens caps are unavailable, you can cut off the unnecessary color
beams by controlling the service mode 2150P-2 1 RGBS.
beams by controlling the service mode 2150P-2 1 RGBS.
2-5. FOCUS VR ADJUSTMENT
1. Set generator to crosshatch.
2. Cover the red and blue CRT lenses with lens caps to allow only green
2. Cover the red and blue CRT lenses with lens caps to allow only green
to show (or use the method shown in the note below for turning off the
CRTs individually without using lens caps).
CRTs individually without using lens caps).
3. Turn the green focus VR on the focus block to adjust to the optimum
focus point with the crosshatch signal.
4. Cover the green and blue picture lenses with lens caps to allow only
red to show (or use the method shown in the note below for turning off
the CRTs individually without using lens caps).
the CRTs individually without using lens caps).
5. Turn the red focus VR on the focus block to adjust to the optimum
focus point with the crosshatch signal.
6. Cover the green and red picture lenses with lens caps to allow only
blue to show (or use the method shown in the note below for turning
off the CRTs individually without using lens caps).
off the CRTs individually without using lens caps).
7. Turn the blue focus VR on the focus block to adjust to the optimum
focus point with the crosshatch signal.
8. After adjusting the items:
2-4. FOCUS LENS ADJUSTMENT,
2-6. 2-POLE MAGNET ADJUSTMENT,
2-8. 4-POLE MAGNET ADJUSTMENT,
2-4. FOCUS LENS ADJUSTMENT,
2-6. 2-POLE MAGNET ADJUSTMENT,
2-8. 4-POLE MAGNET ADJUSTMENT,
reconÞ rm the optimum focus point and adjust again if necessary.
Note: If lens caps are unavailable, you can cut off the unnecessary color
beams by controlling the service mode 2150P-2 1 RGBS.
beams by controlling the service mode 2150P-2 1 RGBS.
A
B
Lens
Minimize both A and B.
Center of crosshatch
Scanning line visible.
— 17 —
KP-51WS500/57WS500/65WS500
2-6. 2-POLE MAGNET AND CENTERING
MAGNET
MAGNET
ADJUSTMENT
1. Set the picture mode to PRO and picture to MAX.
2. Either select the PJED Test Pattern dot hatch signal or apply an
2. Either select the PJED Test Pattern dot hatch signal or apply an
external dot signal.
3. Cover the red and blue CRT lenses with lens caps to allow only green
to show (or use the method shown in the note below for turning off the
CRTs individually without using lens caps).
CRTs individually without using lens caps).
4. Turn the focus VR on the focus block to the left (counter clockwise)
and set it to overfocus to enlarge the spot.
5. Adjust the CRT’s 2-pole magnet so that the small bright spot is in
the center.
6. Align the focus VR on the focus block and set it for the best focus.
7. Apply a Monoscope signal to the set.
8. Adjust the H-CENTERING and V-CENTERING roughly by the
7. Apply a Monoscope signal to the set.
8. Adjust the H-CENTERING and V-CENTERING roughly by the
centering magnets.
9. Check 2-pole magnet adjustment. If necessary repeat steps 1-6.
10. Repeat steps 1 through 9 for the red CRT covering the
10. Repeat steps 1 through 9 for the red CRT covering the
green and blue CRT lenses with lens caps to allow only
red to show (or use the method shown in the note below
for turning off the CRTs individually without using lens caps) and
adjust the red focus control on the focus block.
red to show (or use the method shown in the note below
for turning off the CRTs individually without using lens caps) and
adjust the red focus control on the focus block.
11. Repeat steps 1 through 9 for the blue CRT covering the
red and green CRT lenses with lens caps to allow only
blue to show (or use the method shown in the note below
for turning off the CRTs individually without using lens caps) and
adjust the blue focus control on the focus block.
blue to show (or use the method shown in the note below
for turning off the CRTs individually without using lens caps) and
adjust the blue focus control on the focus block.
Note: If lens caps are unavailable, you can cut off the unnecessary color
beams by controlling the service mode 2150P-2 1 RGBS.
beams by controlling the service mode 2150P-2 1 RGBS.
2-7. CENTERING MAGNET ADJUSTMENT
Not required - Combined with 2-6 2-Pole And Centering Magnet
Adjustment.
2-8. 4-POLE MAGNET ADJUSTMENT
1. Set the picture mode to PRO and picture to MAX.
2. Receive the Dot signal.
3. Cover the red and blue CRT lenses with lens caps to allow only green
2. Receive the Dot signal.
3. Cover the red and blue CRT lenses with lens caps to allow only green
to show (or use the method shown in the note below for turning off the
CRTs individually without using lens caps).
CRTs individually without using lens caps).
4. Turn the (green) focus VR on the focus block to the right (clockwise)
and set it to under-focus to reduce the spot.
5. Adjust the 4-pole magnet so that the small spot in the center of the
screen becomes round for green and red.
6. Adjust the blue spot to an oval shape X:Y=1:1.2
Note: If lens caps are unavailable, you can cut off the unnecessary color
beams by controlling the service mode 2150P-2 1 RGBS.
beams by controlling the service mode 2150P-2 1 RGBS.
x
y
x : y = 1:1 (Green, Red)
Use the center dot
2-9. BLUE DEFOCUS ADJUSTMENT
1. Setup: Apply a Dot Hatch Signal and set the mode to Pro Mode.
Change the color temperature to Cool in the user’s menu.
2. Cover the red and green CRT lenses with lens caps to allow only blue
to show (or use the method shown in the note below for turning off the
CRTs individually without using lens caps).
CRTs individually without using lens caps).
4. Turn the blue focus VR on the focus block to the right (clockwise) to
make the round dot oval.
D1
Blue
D1:D2 = 1:1.2
D2
5. Check the ß are with a high luminance signal to make sure the ß are is
minimal while the bright spot is located in the center, If not, readjust
the 2 and 4-pole magnets.
the 2 and 4-pole magnets.
6. Check for uniformity on a 100% IRE to an all white signal.
Note: If lens caps are unavailable, you can cut off the unnecessary color
beams by controlling the service mode 2150P-2 1 RGBS.
beams by controlling the service mode 2150P-2 1 RGBS.
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