C2N_Your_Model_Tape_Cassette_Operating_Instructions.pdf

IMPORTANT INFORMATION

ABOUT YOUR TAPE CASSETTE

Please read carefully

PET Model 2001, 4K and 8K

(Built-in Cassette)

On My Computer —

WHERE IS CASSETTE NUMBER 1 HOOKUP?

WHERE IS CASSETTE NUMBER 2 HOOKUP?

ANSWER: The built-in cassette is designated as cassette (device)

number 1. Likewise, the cassette that plugs into the rear panel

printed circuit board is designated as cassette number 2.

CAUTION

When mating the tape cassette connector plug to the printed

circuit board; DO SO WITH CARE. DO NOT FORCE THE

CONNECTION. Your tape cassette plug connector is one of two

types. In all cases the "blue" wire on the connector should be to

your right. DO NOT install the tape cassette connector with power

applied to the computer.

CASSETTE

NUMBER

Figure 1. PET DEVICE DESIGNATIONS

Model 2001 - PET and CBM

On My Computer -

WHERE IS CASSETTE NUMBER 1 HOOKUP?

WHERE IS CASSETTE NUMBER 2 HOOKUP?

ANSWER: In the PET and CBM computers (with the graphic or

business keyboard) the cassette that plugs into the rear panel

circuit board is designated as cassette number 1. The cassette that

plugs into the internal printed circuit board (by removing four

phillips-head screws and lifting the computer housing) is desig

nated as cassette number 2. Two each phillips-head screws are

located on the underside of the top housing cover (two each side).

Lift the housing cover carefully and prop it open with the built-in

holding rod. Reinstall the screws when the connection is complete.

CAUTION

When mating the tape cassette connector plug to the printed

circuit board; DO SO WITH CARE. DO NOT FORCE THE CON

NECTION. Your tape cassette plug connector is one of two types.

In all cases the "blue" wire on the connector should be to your

right. DO NOT install the tape cassette connector with power

applied to the computer.

Figure 2. PET/CBM DEVICE DESIGNATIONS

PRELIMINARY CHECKOUT

STEP 1. Turn yourcomputer ON. Verify that, with the first cas

sette in the stop mode, (all keys up) the motor is not

running.

STEP 2. Press "PLAY"and check the movement of the tape

heads toward the spindles and the engaging of the cap

stan by the pinch roller (see Figure 3). The take-up

spindle should be movingsmoothly in a counterclock

wise direction.

STEP 3. Press "STOP7*then "REW"(Rewind.) Thetape heads

should remain in the back position and the supply

spindle should move rapidly clockwise.

STEP 4. Press "STOP"then "F.FWD"(Fast forward.)The tape

heads should still remain in the back position and the

take-up spindle should moverapidly counterclockwise.

READ/WRITE

HEAD

■+-

(RECORD) (REWIND) (FAST FWD) PLAY

STOP

REC

REW

F.FWD

EJECT

Figure 3. MECHANICAL COMPONENTS LOCATION

STEP 5. Press "STOP"and then attempt (but very gently) to

press "REC"(Record.) You should feelstrong mechan

ical resistance.

STEP 6. Ifall of theabovestepscheckout,proceed to the

electronic checkout.

FUNCTIONAL CHECKOUT PROCEDURES

To test proper operation ofyour new CASSETTE unit,we will

write a short program,SAVE it on the cassette, and load it back

into the computer.

Obtain a blank cassette and place it in theCASSETTEunit.

Always pressREW (Rewind) to assure that you are starting at

the beginning of the tape.

The remainder of thissection will indicate operational information

for both cassette units where entry or computer response differs

even though you may be using only one.

Turn your computer OFF and make sure that your cassette is

properly connected.

STEP 1. On thekeyboard type: 10 PRINT 'THISISATEST"

STEP 2. PressRETURN

STEP 3. Type:

• ifCASSETTE 1: SAVE "TEST"

• ifCASSETTE2: SAVE 'TEST", 2

STEP 4. PressRETURN

The display will show:

• ifCASSETTE 1: press play & record on tape#1

• ifCASSETTE2: press play & record ontape#2

Follow the instructions bydepressingPLAYandRECon the cas

sette unit until they are latched down.

The display will show:

WRITING TEST

and after a few moments it will display:

READY

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