Tektronix Webcam 070-8030-01 Benutzerhandbuch
Installation
1780R-Series Service Manual
2–7
Table 2–4: Plug Jumpers and DIP Switch on the Microprocessor Board
(Assembly A5) (Schematic Diagrams 16 through 19)
(Assembly A5) (Schematic Diagrams 16 through 19)
Jumper
Number
Number
Name
Plug Position
Purpose
J342
<16>
<16>
mProcessor Restart
Maintenance
}
Removed
{
Installed
Normal operation
Non-maskable interrupt to
processor
processor
J344
<16>
<16>
mProcessor Reset
Maintenance
}
Removed
{
Momentary Closure
Normal operation
Resets processor (Used
with a factory startup
DEBUG program)
with a factory startup
DEBUG program)
J453
<17>
<17>
RAM Part Selection
Removed
{
Installed
128 K RAM installed
512 K RAM installed
S385
<19>
<19>
Special purpose
4-position DIP switch
4-position DIP switch
1
2
3
4
Open = NTSC
Closed = PAL
Closed = PAL
Open = Password
Closed = No password
Closed = No password
} Open = Norm. Oper.
Closed = DEBUG
Closed = DEBUG
Not used.
{
Factory installed position.
}
Special maintenance use only.
Table 2–5: Plug Jumpers for Vectorscope Board (Assembly A6)
and Oscillator Board (Assembly A7)
and Oscillator Board (Assembly A7)
Jumper
Number
Number
Name
Plug Position
Purpose
J108 (A6)
<29>
<29>
X Input Gain
Removed
{
Installed
X gain is normal
X gain is in High Gain position
J205 (A6)
<29>
<29>
Y Input Gain
Removed
{
Installed
Y gain is normal
Y gain is in High Gain position
J321 (A6)
<27>
<27>
Center Dot Blanking
1-2
2-3_
{
Center dot unblanked
Center dot blanked