Sony Multiscan GDM-2036S Service Manual page 101

There are two methods to additions or changes:
a. Using the keyboard (F-l).
Use the method from
rS.
Coefficient Alteration
RoutineJ.
b. Saving the signal generator's present timing (F-IO).
1. Set the signal generator to the timing you wish to
preset.
2. Input the number you wish to preset. Confirm the
data by pressing the RET key. Save the setting by
pressing the S key.
• You can preset 12 timing. 10 timings are set at the
factory. The remaining 2 are open. When adding timings
use slot #11 or #12.
Explanation of the various modes:
a. 1 v line - the number of horizontal lines in one vertical
scan.
b. h freq. - Horizontal frequency. The displayed value is
a calculated value. The actual horizontal
frequency is determined according to the
following formula.
fh=30kHz
+
(h freq.
X
200Hz) minimum
convertible range 200Hz.
c. ck - Check flags, when displayed as
0
that
number's data is effective. When displayed as
1 this data is unoperational even if infor-
mation on other adjustments is available.
(When the user resets modes ck become Is in
the User system.
d. sync - Following sync configurations are used:
SYNC
4
8
16
32
*16
HD
-
+
-
+
VD
-
-
+
+
- : Negative
LJ
+ :
Positive ~
*
No distinction can be
made between HD
and YD.
SYNC on Green
SYNC
7. Disk read- write routine (F-7), (F-8)
• Use this routine to down load present data to disk for
storage or to modify the standard data.
The standard data is located in file #00. Be careful not
write over it.
• When you want to write over the standard data go to the
read mode and select file #00.
• Insert the disk is in Drive A. Use a 3.S floppy formatted
to write.
One set of data uses app,roximately 700 bytes of memory.
Files 1/999 can be to store data. #00 hold the standard
data.
8. Signal Generator Control Routine (F-9)
Use this routine to control the signal generator's timing
and patterns.
The window pattern can not be controlled .
Special ROM inside the signal generator determines its
timings. Be sure to use the ROM labeled 19M5 Ver 1.
During this routine the signal generator does not commu-
nicate with the monitors microprocessor.
If you press the
I
TAB
I
key you can select optional
numbers beyond the prepared 1-10.
Commond, Data
RGB Signol
GDM-2036S
PC-AT Compatible
Adj ust ment Software
• Major part of the equipment consist of;
1. PC-AT compatible ("Host")
2. Programmable S. G.
3. Serial
IfF
for the monitor and the Programmable S. G.
• Almost all of the adjustment will be done through the
Host.
• The programmable S. G. also will be controlled by the
Host to supply necessary signal to the monitor.
• Judgment should be done by service technician using the
alignment gauge.
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