Model 512 Instruction Manual
Page 3
FRONT PANEL DISPLAY
The Model 512 employs a 40-character alphanumeric vacuum fluorescent display. The display
provides the user with test conditions, and error information. During Test the display provides
data in four fields: CONDITION, FROM POINT, TO POINT, and CIRCUIT LABELS. All four
fields use alphanumeric characters.
REAR PANEL LAYOUT
The rear panel contains a power switch; an AC receptacle for line power connection; a power
fuse; Footswitch connector; Probe connector for either a probe or wrist strap; an external speaker
connector, an Enable receptacle; a serial port connector for a printer, and a serial port for a
terminal or personal computer (PC). Test points are provided on the rear panel through eight
64-pin connectors (J1 through J8).
A wrist-strap kit provides the capability to locate wires by touch during assembly and
troubleshooting, utilizing body conductance. A probe provided in the kit may also be used.
A foot switch is provided for advancing through the test and assembly modes, or restarting the
test mode.
An optional 80-column serial printer provides hard copies of error lists, wire lists, and user label
lists. Refer to Printer Setup instructions in the System Setup section.
CAUTION!
For continued protection against
risk of fire, replace only with
same type and rating of fuse.
FU
S
E
FU
SE
F
U
S
E
FOOTSWITCH
PROBE
PRINTER
TERMINAL
SPEAKER
ENABLE
1
2
64
385
386
257
258
129
447
448
320
191
192
130
319
63
449
450
321
322
193
194
65
66
511
512
383
384
255
256
127
128
INPUT RANGE
110/220 V~
2A 50/60HZ
J7
J5
J3
J1
J8
J6
J4
J2
1.6 A/250V
Figure 2. Model 512 Rear Panel
OPEN JA-1
JB-56
RED/WHITE
Summary of Contents for 512
Page 1: ...CONTINUITY TESTER MODEL 512 Cablescan ...
Page 87: ...Page 78 Figure 17 Schematic Scanner Board 1 of 3 ...
Page 88: ...Page 79 Figure 17 Schematic Scanner Board 2 of 3 ...
Page 89: ...Page 80 Figure 17 Schematic Scanner Board 3 of 3 ...
Page 90: ...Page 81 Figure 18 Schematic CPU Board 1 of 3 ...
Page 91: ...Page 82 Figure 18 Schematic CPU Board 2 of 3 ...
Page 92: ...Page 83 Figure 18 Schematic CPU Board 3 of 3 ...
Page 93: ...NOTES ...
Page 94: ...NOTES ...
Page 95: ...5900325 Rev I Cablescan ...