DOWNLOAD Sony KV-HX32M31 (serv.man2) Service Manual ↓ Size: 6.71 MB | Pages: 125 in PDF or view online for FREE

Model
KV-HX32M31 (serv.man2)
Pages
125
Size
6.71 MB
Type
PDF
Document
Service Manual
Brand
Device
TV
File
kv-hx32m31-sm2.pdf
Date

Sony KV-HX32M31 (serv.man2) Service Manual ▷ View online

– 49 –
KV-HX32M31
RM-1008
Note
1. The Red and Blue magnets should be equally far from the
horizontal center line.
2. Do not separate the Red and Blue magnets too far. (Less than
8 mm)
4
 BMC (Hexapole) Magnet.
If the red, green and blue dots are not balanced or aligned,
then use the BMC magnet to adjust in the manner described
below.
R G
B
R
G
B
R
G B
R
B
R
G
G
G
B
R
B
1. Receive the cross-hatch signal and adjust [PICTURE] to
[MIN] and [BRIGHTNESS] to [STANDARD] .
2.  Adjust the Y separation axis correction magnet on the neck
assembly so that the horizontal lines at the top and bottom of
the screen are straight.
Note
1. The Red and Blue magnets should be equally far from the
horizontal center line.
2. Do not separate the Red and Blue magnets too far. (Less than
8 mm)
5
 Y separation axis correction magnet adjustment.
Blue
Red
VM board
Blue
Red
VM board
Neck assy
Neck assy
(2) Dynamic Convergence Adjustment
Preparation:
Before starting this adjustment, adjust the horizontal static
convergence and the vertical static convergence
Set the PICTURE and BRIGHTNESS to normal.
1. Adjust TLH. (TLH correction piece)
1
 Receive the dot/hatch pattern signal and adjust picture qual-
ity by the menu.
2
 Correct horizontal mis-convergence of red and blue of both
sides on the X axis.
When red is outside insert BMC magnet to right side (THL+)
views from DY neck. And when blue is outside, insert it to
left side (THL–) and take both sides.
R
(B)
B
(R)
B
(R)
TLH +
TLH -
R
(B)
2. Adjust XCV core.
To able to become balance of XCV on the X axis well.
3. Adjust V-TILT.
Correct the vertical mis-convergence of red and blue of verti-
cally sides on the Y axis.
4. Adjust YCH.
Adjust horizontal mis-convergence of red and blue of verti-
cally sides on the Y axis. Mentioned above steps 2 to 4 are
adjusting respectively perform minuteness tracking.
XCV
C board
RV9001
TLV1
YCH
TLV2
BMC magnet
W board
KV-HX32M31
RM-1008
– 50 –
4-4. FOCUS ADJUSTMENT 1
Note
Focus adjustment should be completed before W/B adjustment.
(1) Receive digital monoscope pattern.
(2) Set DRC-MF to “Progressive” and PICTURE to “Standard”.
(3) Adjust FOCUS VR so that the center of the screen becomes
justfocus.
4-3. G2 (SCREEN)  ADJUSTMENT
1. G2  (SCREEN) ADJUSTMENT
1) Set to zoom mode and the PICTURE and BRIGHTNESS to
normal and to the service mode.
2) In put monoscope signal.
3) Set the service data.  CXA2150P-210: ABLK10
4) Connect R, G and B of the C board cathode to the oscillo-
scope.
5) Adjust BRIGHTNESS to obtain the cathode voltage to the
value below.
6) Whilst watching the picture, adjust the screen VR located on
the flyback transformer to the point just before the flyback
return lines disappear (to the point before cut-off)
0 V
170V – 0.5 (VDC)
FOCUS
SCREEN G2
FLYB ACK TRANSFORMER (T8001)
(3) Screen-corner Convergence
b
a
c
d
a-d : screen-corner
        misconvergence
Fix a Permalloy assy corresponding to the misconverged
areas.
a
b
c
d
Permalloy assembly
– 51 –
KV-HX32M31
RM-1008
4-5. NECK ASSY TWIST ADJUSTMENT
(1) Receive dot/hatch pattern.
(2) Turn FOCUS VR fully counter-clockwise.
(3) Confirm the dot shape at the screen center.
(4) Resume FOCUS VR.
Note
In case of turning NECK ASSY, loosen the screw 3 turns. Do not
move the position.
 OK
 Turn NECK ASSY clockwise.
 Turn NECK ASSY counter clockwise.
Fig. 4-5
4-6. PICTURE DISTORTION ADJUSTMENT
Note: In this adjustment use the monoscope signal.
    Adjust in the service mode “DEF1” and “DEF2”.
0 (VPOS)-DEF1
1 (VSIZ)-DEF1
2 (VLIN)-DEF1
3 (VSCO)-DEF1
2 (HSIZ)-DEF2
1 (HPOS)-DEF2
5 (PIN)-DEF2
6 (UCP)-DEF2
7 (LCP)-DEF2
8 (PPHA)-DEF2
9 (VANG)-DEF2
11 (VBOW)-DEF2
11 (SCRL)-DEF1
12 (UVLN)-DEF1
13 (LVLN)-DEF1
4-7.P & P SUB CONTRAST ADJUSTMENT (VIDEO)
(NTSC/PAL)
1. Receive the signal.
TV terminal (sub) : Color-bar (white-75%, No
   setup)
VIDEO terminal (main)  : Color-bar (white-75%, No
   setup)
2. VIDEO MODE
: AV Pro
PICTURE
: maximum
COLOR
: minimum
RGB Signal
: off
3. Set to P & P mode, and set to service mode.
4. Set the service data.
Category
Reg. No & Name
Standards
MCP
2 RON
1
3 GON
0
4 BON
0
7 YLMT
1
PIC
0 PIC
100
1 COL
0
5 PIOF
0
 5. Connect an oscilloscope between the check point and ground.
Check points
: CN9001 pin 1 (R-DRV)
(C Board)
6. Adjust the item as shown below.
Category
Reg. No & Name
LEFT
CCPM
1
YLEV
RIGHT
YCTS
0
YLEV
7. Write the data into memory.
MUTE     
n      12
White
GND
VR1
VR1-VR2=VR=1.95   0.07Vp-p
VR2
Sync tip
KV-HX32M31
RM-1008
– 52 –
4-9. WHITE BALANCE ADJUSTMENT
(1).VIDEO MODE : AV PRO
PICTURE : Maximum
COLOR
: Minimum
Color Temp.: High
DRC-MF
: Progressive
(2). Receive the all white signal and set to full mode screen and
to the service mode.
(3). Minimize the cut-offs and make drives normal in the follow-
ing items.
Category
Reg. No & Name
COLR
3 GDRV
4 BDRV
6 GCUT
7 BCUT
(4). Adjust with the cut-offs and the drives mutually the white
balance becomes best in the mode the picture is maximum or
minimum.
4-10. FOCUS ADJUSTMENT 2
Note
Focus adjustment should be completed before W/B adjustment.
(1) Receive digital monoscope pattern.
(2) Set DRC-MF to “Progressive” and PICTURE to “Standard”.
(3) Adjust FOCUS VR so that the center of the screen becomes
justfocus.
(4) Change the receiving signal to white pattern and blue back.
(5) Confirm MAGENTA RING should not be over the limit sam-
ple. In case MAGENTA RING is over the limit sample,
adjust FOCUS VR to take tracking of MAGENTA RING and
FOCUS.
FOCUS
SCREEN G2
FLYB ACK TRANSFORMER (T8001)
4-8. P & P SUB-HUE AND SUB-COLOR  ADJUSTMENT
(VIDEO) (NTSC/PAL)
1. Receive the signal.
TV terminal (sub) : Color-bar (white-75%, No
   setup)
VIDEO terminal (main) : Color-bar (white-75%, No
   setup)
2. VIDEO MODE
: AV Pro
PICTURE
: maximum
COLOR
: center
RGB Signal
: on
3. Set to P & P mode, set to service mode.
4. Set the service data.
Category
Reg. No & Name
Standards
MCP
2 RON
1
3 GON
1
4 BON
1
7 YLMT
1
PIC
0 PIC
60
1 COL
50
5. Connect an oscilloscope between pin  5 (B-DRV)  of CN9001
(C board) connecter and ground.
6. Adjust the item as shown below to have VB1     VB4 and
VB2    VB3 in the waveform levels.
Category
Reg. No & Name
LEFT
CCPM
2
CLEV
3
SHUE
RIGHT
YCTS
1
CLEV
4
SHUF
7. Write the data into memory.
      MUTE     
n      12
VB1      VB2     VB3     VB4
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