REV.-A
•
MANUAL
Mode
The manual mode allows the user
to
select
anyone
test
from
those listed in Table 5-1 and is
an
aid
to
component level troubleshooting.
Table
5-1
Functions
Tested
by
the
Test
Program
No. Tested Functions
1 RAM CHECK
2 BUZZER CHECK
3
RS,
SER
CHECK
4
LCD
CHECK
5 MCMTCHECK
6
DIP-SW
READ
CHECK
7
KEY
BOARD CHECK
8
ANALOG INPUT CHECK
9 BARCODE CHECK
10
CLOCK CHECK
5.2.1
Repairing
Tools
Table
5-2
lists necessary repair tools
which
are available
from
EPSON.
Table
5-2
Repaired
Repair
Tools
Tool
Q'ty
1 Test program
ROM
1
2
RS-232C interface mini-wrapping connector
1
3
Serial interface mini-wrapping connector
1
4
Microcassette tape
1
5
Cable assembly (PIN
B778400201)
1
6
DC
regulator
or
dry-cell battery
1
7
Low-resolution barcode reader
1
The wrapping connector, internal pin connections, and the external
power
supply set-up, etc. are
illustrated in Fig. 5-1.
5-2
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