ot need all of the expansion modules that are
available but, we have supplied you with Hoods for cable connectors
for a complete expansion system. Use the Hoods as illustrated to
prevent accidental mismatch between the edge connectors on the PCB and
the cable connectors.

In the event that you lose a Door or Hood and want to replace it, we
have given you a Parts List. You may refer to the Parts List and
exploded diagrams to determine its Part Number. You can order
replacement parts through your local Radio Shack store.

You must have a LEVEL II BASIC TRS-80 Microcomputer to utilize the
TRS-80 Expansion Interface, the Line Printer and the Mini-Disk
modules. If you have a LEVEL I BASIC machine, it must be modified to
accept LEVEL II programs. The Screen Printer is the only expansion
module that may be connected directly to the TRS-80 Microcomputer and
that will operate with LEVEL I machines.

We are continually improving and updating our TRS-80 Microcomputer
System. You will be kept informed through our Newsletters (you are on
the mailing list), addenda and revisions to the Manual.

For the complete Electrical Connections Block Diagram, see Figure 7.

[Illustration: FIGURE 5. Rear View--Interface Connections.

(Illustration shows the following parts:)

MINI-DISK HOOD

CONNECTOR
AND CABLE

DOOR
(MINI-DISK PORT)

5-PIN AUDIO DIN
(FEMALE CONNECTORS)

5-PIN AUDIO DIN
(MALE CONNECTORS)

TO TRS-80 TAPE
CONNECTOR]

[Illustration: FIGURE 6. Placement of Expansion Interface.]

[Illustration:

+---------------+ +-----------+
| VIDEO DISPLAY | | DC POWER |
| | | SUPPLY |
+------+--------+ +----+------+
| |
| +---------------+
| | OPTIONAL
+---------+ +------+-----+--+ +-----------+ __
| SCREEN |_________| |_______| CASSETTE |___/ |=
| PRINTER | | TRS-80 | | RECORDER | \__|=
+---------+ +---------------+ +-----------+

TRS-80 Microcomputer System
Without Expansion Interface.]

[Illustration:

+---------+
| SCREEN |______SCREEN PRINTER ________
| PRINTER | INTERFACE CABLE |
+---------+ |
|