D-583-2N-E
3
11.3 Preamplifier Inspection
Fig. .
11.3.1 Description of Test Pins
(1) Amplifier Board A
NAME
TEST PINS
DESCRIPTION
Amplified vortex waveform
＋・・・
VTX
－・・・
0V
While measurement is being made
0.Vp-p min.
Pulse sync with vortex
(Before low cutoff filter)
＋・・・
TRG
－・・・
0V
3.0Vp-p approx.
Pulse sync with vortex
(After low cutoff filter)
＋・・・
PLS
－・・・
0V
3.0Vp-p approx.
(2) Amplifier Board B
Circuit voltage
＋・・・
3V
－・・・
TO
－
Circuit voltage 3.0V DC approx.
NOTE * : Amplifier boards A and B are of one-piece construction;
cannot be disassembled.
Display Board
Fitting Screw
PLS
SEL Switch
DIV Switch
TP
＋
CN5
SW1
SW1-1: Write Protect SW
SW1-2: Grand Total
Reset Switch
SW1-3: (No Function)
SW1-4: POWER Switch
NF2 Switch
RESET Switch
MODE Switch
(CPU Param. Setup Switch
TRG
VTX
0V
FRQ Potentiometer
NF1 Switch
MEM Switch
1/2 Switch
AMP Potentiometer
Interface Board
Amplifier Board B*
MODE Switch
(MODE Select Switch)
TLV Potentiometer
Amplifier Board A*
TP−
3V
Input Board
Summary of Contents for EX DELTA II
Page 49: ...D 583 2N E 49...
