Epson PX-8 Technical Manual page 243

5.1
Turn power on and
press RESET switch.
Press NUM key with
SHIFT key held down.
Press NUM key once.
Press CAPS LOCK key
once.
N
N
N
Press CAPS LOCK key
once.
Make sure that resis-
tance between key-
board connector pin
21 (GND) and each
LED cathode is ap-
proximately 1 kohms.
Also check that re-
spective resistances
between pins 18, 19,
and 20: and anodes of
three LEDs are 0 ohm.
1.3
5-42
REV.-A