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Troubleshooting & Repair Teledyne API M100E Analyzer Operation Manual
270
J2: Power
Configuration
Jumper
Figure 12-4: Location of Relay Board Power Configuration Jumper
AC Configuration of the pump is accomplished via an in-line, hard wired, set of connections. Call Teledyne API’s
Customer Service Department for more information.
12.6.2. DC POWER SUPPLY
If you have determined that the analyzer’s AC main power is working, but the unit is still not operating properly,
there may be a problem with one of the instrument’s switching power supplies, which convert AC power to 5 and
±15 V (PS1) as well as +12 V DC power (PS2). The supplies can either have DC output at all or a noisy output
(fluctuating).
To assist tracing DC Power Supply problems, the wiring used to connect the various printed circuit assemblies
and DC powered components and the associated test points on the relay board follow a standard color-coding
scheme as defined in Table 12-4.
Table 12
-4:
DC Power Test Point and Wiring Color Code
NAME TEST POINT# COLOR DEFINITION
DGND 1 Black Digital ground
+5V 2 Red
AGND 3 Green Analog ground
+15V 4 Blue
-15V 5 Yellow
+12V 6 Purple
+12R 7 Orange 12 V return (ground) line
A voltmeter should be used to verify that the DC voltages are correct as listed in Table 12-4. An oscilloscope, in
AC mode an
d with band limiting turned on, can be used to evaluate if the supplies are excessively noisy (>100
mV peak-to-peak).
04515F DCN6048