Kurzweil K250 - Page 102

4.19 POWER SUPPLY (POD) VOLTAGES
Before beginning the diagnostic test procedure, please be sure
that the power
supply voltages are correct. Verify the following:
r
1. The Power Supply (POD) provides:
+5
volts DC
+15 volts DC
-15 volts DC
2. Using a VOM or DVM check the power supply voltages at the
following power connectors:
P21 ON CPU BOARD
P34 ON CPU BOARD
10 4~ __ .-
_11IIIIIIIIIfIlI4 J 3
0
2
0
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YELLOW -15V
YELLOW +5V
BROWN GROUND
P29B ON CH ANNEL BO ARD
70 80 90
40 50. 60
1 Q 2(
,*<*<*,,<=J
3()
RED +15V
BLACK GROUND
RED -15V
20 50
30 60
ORANGE GROUND
P24 ON CHANNEL BOARD
30 20
YELLOW +5V
Kurzwell 250 ServIce Manual, Chapter 4
4 - 3 2
BROWN GROUND
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