Sony KV-XA21M30 Service Manual ▷ View online
– 37 –
KV-XA21M30/XA21M63
RM-952
KV-XA21N90
RM-915
SECTION 4
CIRCUIT ADJUSTMENTS
4-1. ADJUSTMENTS WITH COMMANDER
Service adjustments to this model can be performed using the sup-
plied Remote Commander RM-915 and RM-952
plied Remote Commander RM-915 and RM-952
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.)
usually.)
2, -
Write 50Hz adjustment data to 60Hz, or vice
versa.
versa.
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.
PAL,SECAM:50
NTSC :60
NTSC :60
00
HPS
1C
SERVICE
Data
Mode
Item
Name
Item No
Software version
Suffix No
(OEM Code)
(OEM Code)
Total Power-On time (hours)
p
Marking of new NVM
GEO
1.0C
59
7F
000A
0
630
632S
633
Device
Name
50
1F
SERVICE 50
HPS
Adjusted with [3]
and [6] buttons.
and [6] buttons.
GREEN
Write with [MUTING]
Write executed with [0]
GEO
00
7F
0
000A
59
1.0C
GREEN
1F
WRITE
50
HPS
GEO
00
7F
0
000A
59
1.0C
1F
SERVICE 50
HPS
RED
The WRITE display
then the display
returns to green
SERVICE
The WRITE display
then the display
returns to green
SERVICE
GEO
00
7F
0
000A
59
1.0C
630
632S
633
630
632S
633
630
632S
633
–
38
–
KV
-XA21M30/XA21M63
-XA21M30/XA21M63
RM-952
KV
-XA21N90
-XA21N90
RM-915
Adjustment Item Table
G
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0
6
/
0
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)
H
8
8
(
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9
5
1
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1
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H
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1
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3
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0
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8
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7
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0
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7
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0
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N
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0
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8
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9
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6
0
M
L
R
0
3
T
I
M
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L
B
G
R
–
39
–
KV
-XA21M30/XA21M63
-XA21M30/XA21M63
RM-952
KV
-XA21N90
-XA21N90
RM-915
Adjustment Item Table
G
V
T
y
t
i
l
a
n
o
i
t
c
n
u
F
.
t
i
n
I
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n
a
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a
N
)
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S
(
P
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7
0
V
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2
3
0
L
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D
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M
A
C
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L
A
P
/
M
A
C
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8
0
F
B
S
2
2
F
3
O
F
L
L
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B
M
A
C
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L
A
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/
M
A
C
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9
0
C
Y
D
1
1
F
F
O
/
N
O
R
O
L
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C
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A
N
Y
D
A
0
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B
A
1
1
G
N
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W
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D
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B
A
0
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N
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1
1
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7
F
0
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2
1
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0
1
.
P
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Y
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3
1
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1
.
P
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C
N
Y
S
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4
1
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M
H
1
1
N
O
/
F
F
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/
C
N
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A
M
z
H
0
6
/
0
5
5
1
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Y
0
1
L
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T
N
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C
H
C
T
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W
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V
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Y
6
1
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1
3
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m
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m
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n
8
1
N
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G
1
1
N
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d
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r
o
m
e
m
t
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n
9
1
N
O
B
1
1
N
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B
d
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r
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m
e
m
t
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n
A
1
N
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1
1
N
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P
d
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i
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m
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m
t
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n
B
1
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A
1
1
W
S
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A
)
C
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M
A
N
Y
D
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y
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n
o
(
s
r
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h
t
o
/
C
S
T
N
C
1
L
S
R
0
1
L
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S
B
G
R
D
1
W
B
V
1
3
W
K
L
B
V
E
1
P
F
R
0
1
P
F
E
R
F
1
P
M
J
0
1
P
M
U
J
0
2
C
M
V
2
0
3
F
F
O
M
V
P
A
0
0
F
N
I
5
F
3
F
F
O
D
N
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O
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N
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H
W
N
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I
T
A
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N
E
T
T
A
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N
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)
H
0
8
(
S
F
A
8
6
8
3
H
B
1
0
S
N
I
A
0
F
3
N
O
D
N
U
O
R
R
U
S
N
E
H
W
N
O
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T
A
U
N
E
T
T
A
T
U
P
N
I
)
Y
L
N
O
-
G
X
(
2
0
F
E
S
0
F
0
)
Y
L
N
O
-
A
X
(
L
O
R
T
N
O
C
T
C
E
F
F
E
D
N
U
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R
R
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S
3
0
1
H
P
3
3
N
O
I
T
C
E
L
E
S
R
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T
S
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G
E
R
1
E
S
A
H
P
4
0
2
H
P
0
3
)
Y
L
N
O
-
G
X
(
N
O
I
T
C
E
L
E
S
R
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T
S
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G
E
R
2
E
S
A
H
P
5
0
3
H
P
0
3
)
Y
L
N
O
-
G
X
(
N
O
I
T
C
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L
E
S
R
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T
S
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G
E
R
3
E
S
A
H
P
6
0
4
H
P
0
3
)
Y
L
N
O
-
G
X
(
N
O
I
T
C
E
L
E
S
R
E
T
S
I
G
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R
4
E
S
A
H
P
7
0
S
C
B
2
3
T
F
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S
R
E
T
N
E
C
S
S
A
B
8
0
S
C
T
2
3
T
F
I
H
S
R
E
T
N
E
C
E
L
B
E
R
T
9
0
F
R
T
2
3
T
E
S
F
F
O
E
L
B
E
R
T
F
R
P
S
M
0
0
T
S
W
5
1
F
F
D
L
O
H
S
E
R
H
T
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R
E
T
S
G
/
W
)
H
4
8
(
D
5
1
4
3
P
S
M
1
0
T
B
W
A
E
F
F
D
L
O
H
S
E
R
H
T
L
A
U
G
N
I
L
I
B
G
/
W
2
0
L
L
W
5
F
F
D
L
O
H
S
E
R
H
T
L
A
R
U
A
N
O
M
G
/
W
3
0
C
A
W
0
F
0
T
N
U
O
C
T
N
E
M
E
E
R
G
A
G
/
W
4
0
L
D
W
0
3
F
F
Y
A
L
E
D
H
C
R
A
E
S
G
/
W
5
0
L
D
N
0
2
F
F
Y
A
L
E
D
H
C
R
A
E
S
M
A
C
I
N
6
0
L
D
S
0
1
F
F
Y
A
L
E
D
D
A
E
R
S
U
T
A
T
S
O
E
R
E
T
S
–
40
–
KV
-XA21M30/XA21M63
-XA21M30/XA21M63
RM-952
KV
-XA21N90
-XA21N90
RM-915
Adjustment Item Table
NOTE
•
shaded items are fixed data.
• Standard data listed on the Adjustment Item Table are reference values, therefore it may be different for each model and for each mode.
• Note for Different Data Those are the standard data values written on the microprocessor. Therefore, the data values of the modes and stored respectively in the
memory.
In case of a device replacement, adjustment by rewriting the data value is necessary for some items.
In case of a device replacement, adjustment by rewriting the data value is necessary for some items.
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7
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6
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7
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0
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7
N
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0
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3
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)
H
8
5
(
1
6
2
5
A
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1
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V
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3
N
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7
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2
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3
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W
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(
4
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