Circuit Adjustments; Adjustment With Commander; Adjustment Method - Sony TRINITRON KV-XA25M30A Service Manual

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KV-XA25M30A/XA29M30A
RM-952
5-1. ADJUSTMENTS WITH COMMANDER
Service adjustments to this model can be performed using the
supplied Remote Commander RM-952.
a. ENTERING SERVICE MODE
With the unit on standby
n [DISPLAY] n 5 n
This operation sequence puts the unit into service mode.
The screen display is :
Device
Item
Name
Name
Item No
GEO
00
HPS
638S
1.0C
59
Suffix No
(OEM Code)
Software version
b. METHOD OF CANCELLATION FROM SERVICE
MODE
Set the standby condition (Press [POWER] button on the com-
mander), 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.
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 the data.

CIRCUIT ADJUSTMENTS

n [POWER]
VOL (+)
Marking of new NVM
Data
Mode
1C
p
SERVICE
50
7F
0
000A
PAL,SECAM:50
NTSC
Total Power-On time (hours)
SECTION 5

5-2. 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
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 :-
GEO
00
HPS
638S 1.0C
:60
GEO
00
HPS
638S 1.0C
Write with [MUTING]
GEO
00
HPS
638S 1.0C
Write executed with [0]
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.
– 28 –
[MUTING]
button. (The display changes to
GREEN
1F
SERVICE 50
59
7F
0
000A
Adjusted with [3]
and [6] buttons.
1F
WRITE
50
GREEN
59
7F
0
000A
1F
SERVICE 50
RED
The WRITE display
59
7F
0
000A
then the display
returns to green
SERVICE

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