Sharp MZ-3500 Bedienungsanleitung PDF herunterladen (Seite 95)

MZ3500

SUB CPU CHECKER FLOW CHART 2/3

SUB CPU CHECKER FLOW CHART 3/3

Set th* i*mef to 23 hour»,

59 fT^tnoie». 58 »«oodi

DecefT)b«r 31 ft

V on th« dtsp I V on the d<tp I

<EY ?

V onthedtcp 1 Vo

KEY?

11-3. Keyboard unit test functions

1) Keyboard controller ROM test

(1) After power on in a normal condition, it starts to carry

out the ROM self-test.

If the alpha/symbol (LOCK) LED were to turn on, it

indicates a failure in KBC. If not, KBC is satisfactory. /

Key self check functional specification (simplified

check)

2) Keyboard test

(1) As the power is turned on with the "DEB" in depres

sion, it goes into the keyboard self-test mode.

(2) Depress key in a given sequence. If key is depressed in

a correct sequence, it makes the alpha/symbol (LOCK)

LED activated each time a key is pushed.

If the key was pushed in a wrong sequence or when a

failure is met in the key, it makes the LED blinked.-

(3) It returns to the normal mode upon completion of

testing all keys. With this, the LED goes out.

(4) Observe the following key-in sequence to test.

) Turn the OP/PRO siwtch to the OP side.

i) Turn on power while pushing the "DEB" key.

ii) Turn the PO/PRO which to the PRO side.

v) Push a key one at a time in accordance with the given

sequence.

102 -

1 2 ... 90 91 92 93 94 95 96 97 98 99 100 ... 115 116

Keine Kommentare

Sharp MZ-3500 Bedienungsanleitung Seite 95