Sony KV-34DRC430 Service Manual ▷ View online
KV-34DRC430/36DRC430
18
KV-34DRC430/36DRC430
DGC ASSEMBLY CAUTION POINT (KV-36DRC430 ONLY)
DGC
DY
CRT BRACKET
1-910-000-13
DGC Restraint Cable
1-900-803-55
DGC Restraint Cable
!
Wrap x4 LOOP (for 30W)
Wrap x2 LOOP (for 34W)
Wrap x2 LOOP (for 34W)
NO SLACK ON WIRE!
!
Caution:
Make sure
hook is
secure on CRT
pierce!
Make sure
hook is
secure on CRT
pierce!
Caution:
Make sure
hook is
secure on CRT
pierce!
Make sure
hook is
secure on CRT
pierce!
!
!
Wrap x4 LOOP (for 30W)
Wrap x2 LOOP (for 34W)
Wrap x2 LOOP (for 34W)
NO SLACK ON WIRE!
Caution:
Make sure Cable
Tie is TIGHTENED
once CRT is in
Vertical postion.
Make sure Cable
Tie is TIGHTENED
once CRT is in
Vertical postion.
Caution:
Make sure Cable
Tie is TIGHTENED
once CRT is in
Vertical postion.
Make sure Cable
Tie is TIGHTENED
once CRT is in
Vertical postion.
2-022-978-01
Wire Clip (2 Places)
DY
Rotation
COIL
COIL
Cable Tie
4-041-041-02
4-041-041-02
DGC Clip (p/n: 4-102-284-01)
CRT BRKT
1-900-804-64
DGC Restraint Cable
(w/ x4 loops around DGC)
To FBT
1-900-804-64
DGC Restraint Cable
(w/ x4 loops around DGC)
DGC
Cable Tie
4-041-041-02
4-041-041-02
Cable Holder
4-084-918-01
x2
4-084-918-01
x2
CRT WIRE DRESSING (KV-34DRC430 ONLY)
KV-34DRC430/36DRC430
19
KV-34DRC430/36DRC430
SPEAKER ASSEMBLY WIRE DRESSING
ECG ASSEMBLY CAUTION POINT
CRT Bracket
[AY]
CRT Bracket
CN527 8P
CLAMP
4-857-472-01
w/ 4x16mm screw
7-685-663-71
4-857-472-01
w/ 4x16mm screw
7-685-663-71
NOTE: Keep speaker wires away from pocket
in the beznet (gray area).
The wires can get pinched when installing
the rear cover (due to boss on the rear cover).
in the beznet (gray area).
The wires can get pinched when installing
the rear cover (due to boss on the rear cover).
Caution:
Clip spring on
the OUTSIDE
of the CRT
pierce.
Clip spring on
the OUTSIDE
of the CRT
pierce.
!
!
FRONT
FRONT
Earth Coating Groung
[ECG]
[ECG]
SPEAKER
SPEAKER
Make sure braided
wire does not twist or
sag on CRT surface.
wire does not twist or
sag on CRT surface.
Caution:
Clip spring on
the OUTSIDE
of the CRT
pierce.
Clip spring on
the OUTSIDE
of the CRT
pierce.
CRT Frit-Line
CRT Frit-Line
Make sure braided
wire does not twist or
sag on CRT surface.
wire does not twist or
sag on CRT surface.
20
KV-34DRC430/36DRC430
KV-34DRC430/36DRC430
SECTION 2: SET-UP ADJUSTMENTS
1. Input white pattern from pattern generator. Set the PICTURE control
to maximum, and the BRIGHTNESS control to standard.
2. Loosen the defl ection yoke mounting screw, and set the purity
control to the center as shown below:
Purity Control
3. Input a green pattern from the pattern generator.
4. Move the defl ection yoke backwards, (See Figure 1) and adjust with
the purity control so that green is in the center and red and blue are
even on both sides.
even on both sides.
Blue
Red
Green
5. Move the defl ection yoke forward, and adjust so that the entire screen
becomes green.
2-1. BEAM LANDING
Preparation:
• Use cross hatch signal to rough adjust focus, G2 and then input a
• Use cross hatch signal to rough adjust focus, G2 and then input a
white pattern signal.
• Face the picture tube in an East or West direction to reduce the
infl uence of geomagnetism.
• Remove all magnets, wedges, and permalogy strips.
• Confi rm data in service mode to match with CRT screen size.
• Set 2170D-1 to their default settings.
• VCEN 31
• VPIN 15
• HTPZ 15
• Set 2170D-2 to their default settings.
• PPHA 20
• VANG 31
• LANG 31
• VBOW
31
• LBOW 31
• Set 2170D-4 to their default settings.
• CXA8070 to their default settings.
• Set all user compensations to their default settings.
• Set landings to their default settings.
• LT Left Top LCC Control
127
• LB Left Bottom LCC Control
127
• RT Right Top LCC Control
127
• RB Right Bottom LCC Control 127
NOTE: Do not use the hand degausser; it magnetizes the CRT
The following adjustments should be made when a complete
realignment is required or a new picture tube is installed.
realignment is required or a new picture tube is installed.
These adjustments should be performed with rated power supply
voltage unless otherwise noted.
voltage unless otherwise noted.
The controls and switch should be set as follows unless otherwise
noted:
noted:
VIDEO MODE: STANDARD (RESET)
Perform the adjustments in order as follows:
1. Beam Landing
2. Convergence
3. Focus
4. Screen (G2)
5. White Balance
Test Equipment Required:
1. Color Bar Pattern Generator
2. Degausser
3. DC Power Supply
4. Digital Multimeter
Figure 1
21
KV-34DRC430/36DRC430
KV-34DRC430/36DRC430
6. Switch over the raster signal to red and blue and confi rm the
condition.
7. When the position of the defl ection yoke is determined, tighten it with
the defl ection yoke mounting screw.
8. Move the yoke up and down and/or side to side to fi nd the best
geometry. Once the best position is confi rmed mount the rubber
wedges to hold the yoke position in place for best geometry.
wedges to hold the yoke position in place for best geometry.
9. If landing at the corner is not right, adjust it by using the disk
magnets.
a
c
b
d
b
a
c
d
Purity control
corrects this area
Disk magnets
or rotatable disk
magnets correct
magnets correct
these areas (a-d)
Deflection yoke positioning
corrects these areas
2-2. CONVERGENCE
Preparation:
• Set the CONTRAST and BRIGHTNESS control to standard (reset).
• Set the CONTRAST and BRIGHTNESS control to standard (reset).
• Input a cross hatch pattern signal.
2-2.1. VERTICAL AND HORIZONTAL STATIC
CONVERGENCE
1. Set dynamic convergence to default values (as in 2-1 Beam Landing)
or disconnect the dynamic convergence before adjusting static
convergence (CN903), except for minor touch-up.
convergence (CN903), except for minor touch-up.
2. Adjust H.STAT convergence, RV9001, on CH Board to converge
red, green, and blue dots in the center of the screen.
3. Adjust V. STAT magnet to converge red, green and blue dots in the
center of the screen.
R
G
B
Center dot
RV9001
H-STAT
V.STAT magnet
R G B
4. Tilt the V.STAT magnet and adjust static convergence to open or
close the V.STAT magnet
B
G
R
R
B
G
R
R
1
2-3. V-PIN AND V-CEN ADJUSTMENT
Preparation:
• Input a cross hatch pattern signal.
• Input a cross hatch pattern signal.
• Set Video Mode to: Standard (Reset)
• For all 4x3 CRT, VPIN data has separate register for full and
V-compress. Adjust both modes if needed.
• For all 16x9 CRT’s, adjust VPIN in normal mode for straightness of
horizontal line.
1. Adjust service mode CXA2170D-1 05 V-CEN so that the top pin and
bottom pin are symmetrical from top to bottom.
2. Adjust service mode CXA2170D-1 06 V-PIN so that the top pin and
bottom pin are symmetrical from top to bottom.
3. Horizontal lines should be straight from left to right. Check landing for
side effect.
2-3.1. OPERATION OF BMC (HEXAPOLE)
MAGNET
The respective dot positions result from moving each magnet interact.
Perform the following adjustments while tracking.
Perform the following adjustments while tracking.
1. Use the BMC tabs to adjust the red, green and blue dots so that
they line up at the center of the screen (move the dots in a horizontal
direction).
direction).
HMC Correction
HMC Correction
R
G
B
A=B
A
B
R
G B
A>B
A
B
R
G
B
A=B
A
B
R
G
B
A<B
A
B
VMC Correction
R
G
B
C<D
C
D
R
G
B
C=D
VMC Correction
R
G
B
C<D
C
D
R
G
B
C=D
Click on the first or last page to see other KV-34DRC430 service manuals if exist.