ENSONIQ EPS-16 PLUS Service Manual

EPS-J6 PLUS Power Circuitry
TESTING THE POWER SUPPLY UNLOADED
If the Power Supply readings exceed the indicated tolerance (particularly the +5 Digital line between
tenninals 18 and 17 or +5 Memory line between terminals 16 and 13) it is possible that a defective
component
on the Main Board is drawing the Power Supply down. In this case, you should test the
Power SuppIy unloaded before proceeding.
Incorrect power supply voltages
Tum the unit OFF Check the fuses.
Verify the the proper Line Voltage is
present Turn the unit ON.
INCORRECT POWER
SUPPLY VOLT AGES
===_---NO-- .... ~~An better nowJ
YES
Tum the unit OFF. Disconnect
the Keyboard cable from the
main board. Turn the unit ON.
...
( Replace the Keyboard/KPC)
NO ---IPl~ Simulator (see Section C). .
YES
Turn the unit OFF. Disconnect the cable
between the power supply and the
Keypad/Display Board. Tmn the unit ON.
Replace the
==----NO ~ Keypad/DisplayBoard
YES
Tmn
the unit OFF. Disconnect the
cable between the power supply and
the main board. Tmn the unit ON.
(see Section B).
Replace the Main
==---NO---1~ Board (see Section A).
YES
Replace the Power Supply
Board (see Section D).
EPS-J6 PLUS Service Manual
Figure 5 -
Incorrect Power
Supply Voltages
page 9

ENSONIQ EPS-16 PLUS Specifications

General

Brand	ENSONIQ
Model	EPS-16 PLUS
Category	Recording Equipment
Language	English