Sharp MZ-3500 Manual do Utilizador descarregar pdf (Página 91)

MZ3500

( Check No. 4 )

( Check No. 5 )

/<.y ^ Jf -y > K W

"H" in red

“H” in green

“H” in white

( Check No. 6 )

( Check No. 7 )

( Check No. 8 )

Backroung in red

Back ground in green

Back ground in black

' in blue

I" in red

I* "H" ir

}

....

}

....

H*‘ in green

in white

4) Speaker test

Performance of the speaker and the volume control are

tested. Listen carefully to detect any abnormal sound or

mulfunction. Adjust the volume control to a suitable listen

ing level.

5) Printer interface test

Performance of the printer interface signal lines and action

of the 8255 are tested.

[Dispaly]

(1) Normal test ending

PR OK

(2) Abnormal test ending

PR ER .

6) Light pen interface test

Performance of light pen interface signal lines and the

action of the GDC are tested.

[Display]

On the upper left corner of the screen is displayed character

and line.

(1) Normal test ending

LP OK

(2) Abnormal test ending

LP ER

7) RS232C interface test

Performance of RS232C interface signal lines and the

action of the 8251 are tested.

[Display]

(1) Normal test ending

RS OK

(2) Abnormal test ending

RS ER

It will need wiring connection as illustrated in the figure

in order to test the RS232C interface. Pins of the RS232C

interface edge connector must be wired in the following

manner:

Front side

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— -V

7 5 3 1

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Sharp MZ-3500 Manual do Utilizador Página 91

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