Epson PX-8 Technical Manual page 204

REV.-A
Wrapping connector pin arrangement Internal pin connections
Serial interface RS-232C interface
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4 .... 5 6 .... 7
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DC regulator
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Fig.5-1 Set-up for Repair
5.2.2 Installing the Test Program ROM
To install the test program ROM in the ROM capsule of the computer, perform the following steps:
Step (1): Reset the POWER switch OFF.
Step (2): Remove the ROM capsule cover from the bottom panel.
Step (3): When two ROMs are already installed in the capsule, remove either one by alternately lif-
ting up on the tabs at both ends of the ROM.
*
If the ROM is difficult to remove, alternately raise both the ends with a flat screw
driver.
Cover
Fig. 5-2 ROM Capsule Cover Removal
Fig. 5-3 ROM Removal
5-3