Sony KV-AR25M31 Service Manual ▷ View online
– 17 –
KV-AR25M68/AR25M31/AR25M90
RM-993
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-993 and RM-995.
supplied Remote Commander RM-993 and 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.
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.
PAL,SECAM:50
NTSC :60
NTSC :60
00
HPS
1C
p
GEO
1.0M
1.1M
59
7F
000A
0
603S
(KV-AR25M31
/AR25M90)
/AR25M90)
605S
(KV-AR25M68)
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
Write with [MUTING]
Write executed with
-
-
RED
The WRITE display
then the display
returns to green
SERVICE.
The WRITE display
then the display
returns to green
SERVICE.
1F
50
HPS
GEO
00
7F
0
000A
59
1.0M
1.1M
GREEN
Adjusted with 3
and 6 buttons.
and 6 buttons.
603S
605S
(KV-AR25M31
/AR25M90)
/AR25M90)
(KV-AR25M68)
1F
50
HPS
GEO
00
7F
0
000A
59
1.0M
1.1M
603S
605S
(KV-AR25M31
/AR25M90)
/AR25M90)
(KV-AR25M68)
1F
50
HPS
GEO
00
7F
0
000A
59
1.0M
1.1M
GREEN
603S
605S
(KV-AR25M31
/AR25M90)
/AR25M90)
(KV-AR25M68)
WRITE
–
18
–
KV
-AR25M68/AR25M31/AR25M90
-AR25M68/AR25M31/AR25M90
RM-993
RM-995
Adjustment Item Table
G
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–
19
–
KV
-AR25M68/AR25M31/AR25M90
-AR25M68/AR25M31/AR25M90
RM-993
RM-995
G
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2
2
2
2
–
20
–
KV
-AR25M68/AR25M31/AR25M90
-AR25M68/AR25M31/AR25M90
RM-993
RM-995
G
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T
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