Sony KV-AR29M31 Service Manual ▷ View online
– 13 –
KV-AR29M31
RM-995
5
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.
the screen are straight.
Note
1. The Red and Blue magnets should be equally far from the
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)
(2) Dynamic Convergence Adjustment
Preparation:
• Before starting this adjustment, adjust the horizontal static
• Before starting this adjustment, adjust the horizontal static
convergence and the vertical static convergence
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.
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
Neck assy
Neck assy
Blue
Red
Blue
Red
VM1 board
VM1 board
R B
R B
TLH
TLV
YCH
XCV
B
R
R
B
– 14 –
KV-AR29M31
RM-995
(3) Screen-corner Convergence
Fix a Permalloy assy corresponding to the misconverged
areas.
areas.
3-3. FOCUS ADJUSTMENT
FOCUS adjustment should be completed before W/B adjustment.
1.
Receive digital monoscope pattern.
2.
Set "Picture Mode" to "Standard".
3.
Set S2801 to mechanical center position.
4.
Adjust focus VR so that the center of the screen becomes just
focus.
5.
Adjust S2801 when corner focus is unbalance is right and left.
6.
Change the receiving signal to white pattern blue back.
7.
Confirm Magenta ring is not noticable. Incase magneta ring is
obvious, reset S2801 to mechanical center position and then
adjust FOCUS VR to balance between MAGENTA RING and
FOCUS.
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)
ON DY:
FLYBACK TRANSFORMER (T503)
YCH
XCV
TLV1
TLV2
b
a
c
d
a-d : screen-corner
misconvergence
misconvergence
a
b
c
d
Permalloy assembly
Focus
Screen
– 15 –
KV-AR29M31
RM-995
2. WHITE BALANCE ADJUSTMENT
1) Set to Service Mode (Refer Section 4-1: ADJUSTMENTS
1) Set to Service Mode (Refer Section 4-1: ADJUSTMENTS
WITH COMMANDER).
2) Input white raster signal.
3) Set the PICTURE to minimum.
4) Select GCT (WHB 4) and BCT (WHB 5) with [1] and [4], and
3) Set the PICTURE to minimum.
4) Select GCT (WHB 4) and BCT (WHB 5) with [1] and [4], and
adjust the level with [3] and [6] for the best white balance.
5) Set the PICTURE to maximum.
6) Select GDR (WHB 1) and BDR (WHB 2) with [1] and [4],
6) Select GDR (WHB 1) and BDR (WHB 2) with [1] and [4],
and adjust the level with [3] and [6] for the best white
balance.
balance.
7) Write into the memory by pressing [MUTING] then [0].
3. SUB BRIGHT ADJUSTMENT
1) Set to service mode.
2) Input a staircase signal of black to white from the pattern
1) Set to service mode.
2) Input a staircase signal of black to white from the pattern
generator.
3) BRIGHTNESS .... 50%.
PICTURE ............ MINIMUM
4) Select SBR (WHB7) with [1] and [4], and adjust SBR
(WHB7) level with [3] and [6] so that the second stripe from
the right is dimly lit.
the right is dimly lit.
3-4. G2 (SCREEN) AND WHITE BALANCE
ADJUSTMENTS
1. G2 (SCREEN) ADJUSTMENT
1) Set the PICTURE to normal.
2) Put to VIDEO input mode without signals.
3) Connect R, G and B of the C6 board cathode to the
1) Set the PICTURE to normal.
2) Put to VIDEO input mode without signals.
3) Connect R, G and B of the C6 board cathode to the
oscilloscope.
4) Adjust BRIGHTNESS to obtain the cathode voltage to the
value below.
5) Adjust G2 (screen) on the FBT until picture shows the point
before cut off.
0 V
Cathode setting voltage:
175 V
175 V
± 2 (VDC)
second from the right
Black
White
– 16 –
KV-AR29M31
RM-995
SECTION 4
CIRCUIT ADJUSTMENTS
4-1. ADJUSTMENTS WITH COMMANDER
Service adjustments to this model can be performed using the
supplied Remote Commander RM-995.
supplied Remote Commander RM-995.
a. ENTERING SERVICE MODE
With the unit on standby
With the unit on standby
This operation sequence puts the unit into service mode.
The 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.
4) Press [MUTING] button to indicate WRITE on the screen.
5) Press [0] 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.
n
[DISPLAY]
n
5
n
VOL (+)
n
[POWER]
4-2. ADJUSTMENT METHOD
Item Number 00 of device GEO
This explanation uses H-Position as an example.
1. Select “GEO 00 HPS” with the 1 and 4 buttons.
2. Raise/lower the data with the 3 and 6 buttons.
3. Select the optimum state. (The standard is 1F for PAL
reception.)
4. Write with the
[MUTING]
button. (The display changes to
WRITE.)
5. Execute the writing with the - button. (The WRITE
display will be changed to red color while excuting, and
back to SERVICE.)
Example on screen display :-
1, 4
Select the adjustment item.
↓
3, 6
Raise/lower the data value.
↓
[MUTING]
Writes.
↓
-
Executes the writing.
7, -
All the data becomes the values in memory.
8, -
All user control goes to the standard state.
5, -
Service data initialization (Be sure not to use
usually.)
[MUTING]
+ -
Write 50Hz adjustment data to 60Hz, or vice
versa.
2, -
Copy and write all data.
Use the same method for all Items. Use 1 and 4 to select the
adjustment item, use 3 and 6 to adjust, write with [MUTING],
then execute the write with -.
Note : 1. In [WRITE], the data for all items are written into
memory together.
2. For adjustment items that have different standard data
between 50Hz or 60Hz, be sure to use the respective
input signal after adjustment.
input signal after adjustment.
SERVICE
50
PAL,SECAM:50
NTSC :60
NTSC :60
00
HPS
1C
p
GEO
1.0C
59
7F
000A
0
605S
Device
Name
Suffix No
(OEM Code)
(OEM Code)
Item
Name
Marking of new NVM
Item No
Software version
Total Power-On time (hours)
Data
Mode
SERVICE
WRITE
WRITE
1F
50
HPS
GEO
00
7F
0
000A
59
605S 1.0C
1F
50
HPS
GEO
00
7F
0
000A
59
605S 1.0C
1F
50
HPS
GEO
00
7F
0
000A
59
605S 1.0C
GREEN
Write with [MUTING]
Write executed with
GREEN
RED
The WRITE display
then the display
returns to green
SERVICE.
The WRITE display
then the display
returns to green
SERVICE.
Adjusted with 3
and 6 buttons.
and 6 buttons.
Click on the first or last page to see other KV-AR29M31 service manuals if exist.