Kenwood PR-657, Instruction Manual

Page: 9 / 20

2 0 V
Output Current
7 . 2 A
NOTE: If the output current-exceeds around 7.2A, the
overcurrent protective circuit operates and
turns the overcurrent indicator 4 on. The circuit
has a drooping constant-current characteristic
as illustrated in Figure 3.
(2 )Adjusting Preset Voltages
To adjust the preset voltages, set up the controls on the
front pane! as illustrated in Figure 4.
1. Set the PRESET/VARIABLE selector 9 to "PRE-
SET".
2. Set the PRESET switch 8 to " I " .
3. Adjust the PRESET I semi-fixed control on the right-
hand side clockwise with a standard screw driver until
the V meter 2 reads a desired voltage.
4. Similarly, proceed with adjustment for the PRESET
II and III voltages.
. 5. This completes the preset voltage adjustment. Turning
the PRESET switch 8 to " l "
r
"JT- and " I D " - will
produce the preset voltages in sequence.
NOTE: The preset position out of use should be set for
0 V output voltage for safety operaiton.
S T A N D A R D S C R E W D R I V E R
P -«e 4
7 . 2 8 A
Figure 3
Outpu
t Voltag
e
9