Circuit Adjustments; Adjustments With Commander; Adjustment Method - Sony TRINITRON KV-XA29M31 Service Manual

5-1. ADJUSTMENTS WITH COMMANDER

Service adjustments to this model can be performed using the sup-
plied Remote Commander RM-954
a. ENTERING SERVICE MODE
With the unit on standby
n [DISPLAY] n 5 n
VOL (+)
This operation sequence puts the unit into service mode.
The screen display is :
Device Item
Name Name
Item No Data
GEO 00 HPS 1C
032S 1.0C 59 7F
Suffix No
(OEM Code)
Software version
Total Power-On time (hours)
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, -
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.)
2, -
Write 50Hz adjustment data to 60Hz, or vice
versa.
SECTION 5

CIRCUIT ADJUSTMENTS

n [POWER]
Marking of new NVM
Mode
p SERVICE
50
0 000A
PAL,SECAM:50
NTSC :60

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.)
[MUTING]
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 1F
630S 1.0C 59 7F
GEO 00 HPS 1F
630S 1.0C 59 7F
Write with [MUTING]
GEO 00 HPS 1F
630S 1.0C 59 7F
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.
– 35 –
KV-XA29M31/XA29M50/
XA29M61/XA34M31
button. (The display changes to
GREEN
SERVICE 50
0 000A Adjusted with [3]
and [6] buttons.
WRITE 50 GREEN
0 000A
SERVICE 50 RED
The WRITE display
0 000A
then the display
returns to green
SERVICE
RM-954