Circuit Adjustments; Adjustments With Commander; Adjustment Method - Sony TRINITRON KV-XA25M60 Service Manual

KV-XA25M60/XA25M63/XA25N90
RM-954

5-1. ADJUSTMENTS WITH COMMANDER

Service adjustments to this model can be performed using the sup-
plied Remote Commander RM-914 and RM-954.
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
032S 1.0C 59
033S
Software version
Suffix No
(OEM Code)
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.
1, 4
Select the adjustment item.
↓
3, 6
Raise/lower the data value.
↓
[MUTING]
Writes.
↓
-
Executes the writing.
7, -
8, -
5, -
+ - Write 50Hz adjustment data to 60Hz, or vice
[MUTING]
2, -
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RM-914

CIRCUIT ADJUSTMENTS

n [POWER]
VOL (+)
Marking of new NVM
Mode
Data
p
1C SERVICE 50
7F 0 000A
PAL,SECAM:50
NTSC
Total Power-On time (hours)
All the data becomes the values in memory.
All user control goes to the standard state.
Service data initialization (Be sure not to
use usually.)
versa.
Copy and write all data.
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
1.0C
032S
033S
:60
GEO 00
1.0C
032S
033S
Write with [MUTING]
GEO 00
1.0C
032S
033S
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.
– 50 –
[MUTING]
button. (The display changes to
GREEN
HPS 1F SERVICE 50
59 7F 0 000A
Adjusted with [3]
and [6] buttons.
GREEN
HPS 1F WRITE 50
59 7F 0 000A
HPS 1F SERVICE 50 RED
The WRITE display
59 7F 0 000A
then the display
returns to green
SERVICE