Sony TRINITRON KV-ES38N90, Service Manual

Page: 43 / 144

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KV-ES38N90
RM-958
6-2. ADJUSTMENT METHOD
Item Number 00 of device GEO
This explanation uses V-size as an example.
1. Select “GEO 00 VSZ” 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.)
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.
3. Additional function to skip category (device) to
category (device).
example:
GEO 00 VSZ
↕
DAC 00 XXX
The buttons for the function above should be
>
and
.
.
SECTION 6
CIRCUIT ADJUSTMENTS
6-1. ADJUSTMENTS WITH COMMANDER
Service adjustments are made with the RM-958 that comes with
this unit.
a. ENTERING SERVICE MODE
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.)
[DISPLAY]
,
-
Write 50Hz adjustment data to 60Hz, or vice
versa.
2
,
-
Write 50Hz adjustment data to 60Hz, or vice
versa.
/- Copy and write all data.
example:
GEO
00 VSZ
↕
DAC 00 HCT
PAL,SECAM :50
NTSC :60
00 VSZ 29 SERVICE
Data Mode
Item Name
Item No
Software version
Suffix No
(OEM Code)
Total Power-On time (hours)
p
Marking of virgin NVM
GEO
042Q 7.1N 59 000A FF 0
Device Name
50
This operation sequence puts the unit into service mode.
The screen display is :
n
[DISPLAY]
n
5
n
VOL (+)
n
[POWER]
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), select an item of
adjustment.
3) Press
[MUTING]
button and it will indicate WRITE on the
screen.
4) 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.
The screen display is :
29 SERVICE 50 HPS
Adjusted with [3]
and [6] buttons.
GREEN
Write with
[MUTING]
Write executed with
[0]
GEO 00
59 FF
59 FF
59 FF
0 000A 7.1N 0 042Q
GREEN 1F WRITE 50 HPS GEO 00
0 000A 7.1N 0 042Q
1F SERVICE 50 HPS
RED
The WRITE display
then the display
returns to green
SERVICE
GEO 00
0 000A 7.1N 0 042Q