Epson PX-8 Technical Manual page 219

Set switch SW3 off
and measure VB+ voltage.
N
Set switch SW3 ON.
Readjust VRF voltage
with VR2.
Set switch SW3 ON,
press INITIAL RESET
switch, and then turn
POWER switch ON.
y
Replace MARPLE
board.
Replace keyboard unit.
5-18
Replace test program
ROM, press RESET
switch, and then re-
load test pregram.
N
REV.-A