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Model
KV-AR292M50
Pages
127
Size
13.44 MB
Type
PDF
Document
Service Manual
Brand
Device
TV
File
kv-ar292m50.pdf
Date

Sony KV-AR292M50 Service Manual ▷ View online

– 10 –
KV-AR292M50/AR292M81
RM-W102
2-2. CONVERGENCE
Before starting this adjustment, adjust the focus,
horizontal size and vertical size.
Receive dot/hatch signal
Pic mode: Soft
(1) Horizontal and Vertical Static Convergence
1. (Moving vertically), adjust the V.STAT magnet so that
the red, green and blue dots are on top of each other
at the centre of the screen.
2. (Moving horizontally), adjust the H.STAT VR control so
that the red, green and blue dots are on top of each
other at the center of the screen.
3. If the H.STAT variable resistor cannot bring the red,
green and blue dots together at the center of the
screen, adjust the horizontal convergence with the
H.STAT variable resistor and the V.STAT magnet in the
manner given below.
(In this case,the H.STAT variable resistor and the
V.STAT magnet influence each other so be sure to
perform adjustments while tracking).
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.
H. STAT VR
V. STAT
Magnet
RV750
H. STAT
RV1800
SCREEN (G2)
C Board
Center dot
R     G     B
G
R
B
a
a
b
b
b
R
R
G
G
B
B
a
b
R
R
G
G
B
B
1
V. STAT
2
H. STAT VR
R
R
G
G
B
B
a
a
b
b
b
R
R
G
G
B
B
a
b
R G
B
R
G
B
R
G B
R
B
R
G
G
G
B
R
B
3
H. STAT
R
R
G
G
B
B
a
a
b
b
b
Purity
BMC
BMC (Hexapole)
Purity
DY pocket
V.STAT
V.STAT
4
BMC (Hexapole) Magnet
5. Operation of V.STAT magnet
If the V.STAT magnet is moved in the "a" and "b" arrows,
the red, green and blue dots moves as shown below.
6. Moved RV705 H.STAT.
the red, green an blue dots move as shown below.
– 11 –
KV-AR292M50/AR292M81
RM-W102
(2) Dynamic Convergence Adjustment
Preparation:
Before starting this adjustment, adjust the horizontal  and
the vertical static convergence
7. Y separation axis correction magnet adjustment.
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.
Neck assy
Neck assy
Blue
Red
Blue
Red
VM1 board
VM1 board
R B
R B
TLH
TLV
YCH
XCV
B
R
R
B
(VR1)
TLV
XCV
DY pocket
DY pocket
TLH Plate
XCV
(VR3)
TLV
(VR2)
YCH
ON DY:
(3) Screen-corner Convergence
If you are unable to adjust the corner convergence
properly, this can be corrected with the use Piece A(90)
Conv. Correct.
1. Affix the  Permaloy Assy Correction corresponding to the
misconverged areas.
TLV
Rotate TLV-2 VOL (29", 34") on DY
XCV
Rotate XCV
Adj core on DY
YCH
Rotate YCH
VOL on DY
TLH
Insert
TLH
Correction Plate to DY Pocket
(Left or Right)
b
a
c
d
a-d : screen-corner
        misconvergence
a
b
c
d
a to d : permaloy assembly
Fix a Permaloy assy
corresponding to the
misconverged areas 
– 12 –
KV-AR292M50/AR292M81
RM-W102
2-4. G2 (SCREEN) ADJUSTMENTS
1. Set the  PICTURE to Normal.
2. Put the VIDEO input mode without signals
3.  Connect R,G,B of the  C board cathode to the
oscilloscope. Set WHBL 016 RGBB to 00.
4. Adjust cathode voltage to the value below.
5. Adjust G2 (screen) on the FBT until picture shows the
point before cut off.
Cathode setting voltage:
170 V ± 2 (VDC)
2-3. FOCUS ADJUSTMENT
FOCUS adjustment should be completed before W/B
adjustment.
(Except 34")
1. Receive digital monoscope pattern.
2. Set "Picture Mode" to "DYNAMIC".
3. a) Adjust focus VR so that the center of screen
becomes just focus(29"/34").
b) Adjust focus VR so that the lion teeth
becomes just focus(25").
4. Change the receiving signal to white pattern and blue
back.
5. Confirm Magenta ring is not noticeable. Incase
magenta ring is obvious, adjust FOCUS VR to balance
between MAGENTA RING and FOCUS.
FLYBACK TRANSFORMER  (T503)
Focus
Screen
2-5. WHITE BALANCE ADJUSTMENT
1. Set to Service Mode (Refer Section 3-1:
ADJUSTMENTS WITH COMMANDER).
2. Input white raster signal.
3. Set Picture to Dynamic mode.
i)
Set PICT 006 WTS to 00h (all models except AR2
series).
ii) For AR2 set OPTB 006 OPB6 to 00.
4. Select WHBL 002"RDRV" and adjust the value to 37
5. Select WHBL 003"GDRV" and 004 "BDRV"and adjust
the data for the best white balance in highlight condition.
6. Adjust WHBL 000 "BKOR" and 001 "BKOG"and adjust
the data for best white balance cut-off condition.
7. Write into the memory by pressing [MUTING] then 
-
.
8. Write offset data for other mode.
After adjustment please reset;
a) OPTM 006 – OPB6 to original data (AR2 Series).
b) PICT 006 – WTS to original data (for all models
except AR2 series)
Adjust
Offset
Offset
18000
t
12363
t
9300
BKOR
–2
–3
BKOG
+1
+2
RDRV
0
0
GDRV
–3
–8
BDRV
–8
–18
2-6.
 SUB BRIGHT ADJUSTMENT
1. Set to service mode.
2. Brightness set to 50%, Picture: Minimum.
3. Select WHBL 010 SBRT with 
1
 and 
4
, and adjust
'SBRT' data with 
3
 and 
6
 so that the third stripe from
right dimly lit.
4. Write into the memory by pressing [MUTING] then 
-
.
5. Models cut-off:
0 IRE (25"/34"); 10 IRE (29")
Slightly Glimmer: 10 IRE (25"/34")
20 IRE (29")
– 13 –
KV-AR292M50/AR292M81
RM-W102
SECTION 3
CIRCUIT ADJUSTMENTS
3-1. ADJUSTMENT WITH COMMANDER
Service adjustments to this model can be performed using the supplied remote commander RM-W102.
a. ENTERING SERVICE MODE
With the unit on standby
This operation sequence puts the unit into service mode.
This screen display is:
b. METHOD OF CANCELLATION FROM SERVICE MODE
Set the standby condition (Press [POWER] button on the commander), then press [POWER] button again, hereupon it
becomes TV mode.
c. METHOD OF WRITE INTO MEMORY
1. Set to Service Mode.
2. Press 
1
 (UP) and 
4
 (DOWN), to select the adjustment item.
3. Change item by pressing 
3
6
.
4. Press [MUTING] button to indicate WRITE on the screen.
5. Press 
-
 button to write into memory.
d. MEMORY WRITE CONFIRMATION METHOD
1. After adjustment, pull out the plug from AC outlet, and then plug into AC outlet again.
2. Turn the power switch ON and set to Service Mode.
3. Call the adjusted items again to confirm adjustments were made.
  
t [DISPLAY] t 5 t [VOL $+% ] t [POWER]
item no.
service data
NVM
field
channel no./
category
in decimal
item name
in decimal
NG
service command
frequency
video input name
GEOM
006
HSIZ
031
x
SERVICE
60
S VIDEO 1
software
service data
reserved
power on time
release ID
version
in binary
for factory
color system
(decimal?)
SUS01
0.69U
0001 1111
FF FF
NTSC3
65535
Status Byte
Status Byte
Flash DCXO
#1 SSD
#2 SSD
111 11 11 1 7 11
FG
xy 111
000000
000000
VDSP_C Flag
CO_LOCKED
VDSP
Detected Stereo Type (Direct Value from CZ_ Stereo_Mode)
S : for Sony
A : Aiwa
U S
: US/Latin/Taiwan
E U
: Europe
G A
: General Area
J P
: Japan
0 1 : serial no. of the M/P release
for each destination
111
Needed for Nicam DCXO aligment Purpose
xy
Value of x = 0 - Unknown, 1 - BTSC, 2 - A2, 3 - NICAM,
4 - KOREAN, 5 - Japan, 6 - AV Stereo
Value of y = 0 - Mono, 1 - Stereo, 2 - Bilingual, 4 - SAP/Single
1, 4
Select the adjustment item.
r
3, 6
Raise/lower the data value.
r
[MUTING]
Writes.
r
-
Executes the writing.
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