Commodore 1541-II Uživatelská příručka stáhnout pdf (Strana 28)

STEP

6

7

PROCEDURE

Place

power

switch

to

ON.

Measure

tests

points

in

table

below.

Touch

positive

lead

of

DMM

to

indicated

test

point.

Verify

that

each

measurement

is

within

the

minimum

and

maximum

limits

given.

Test

Point

Min.

Max.

P8,pinl(A)

+4.6V

+5.25V

P7,pinl(B)

+11.4V

+12.6V

P7,pin2(C)

+11.4V

+12.6V

P5,pin2(D)

+11.4V +12.6V

P6,pin8(E)

+4.75V

+5.25V

P6,pin2(F)

+4.6V

+5.25V

Are

all

measurements

above

within

limits

specified?

YES

Place

power

switch

to

OFF.

Proceed

to

Step

7.

NO

Place

power

switch

to

OFF.

Remove

AC

line

cord.

Fault

lies

in

Disk

Controller

PC

Board.

Repair

or

replace.

Connect

J8 to

P8.

Place

power

switch

to

ON.

Is

green

LED

illuminated?

YES

Place

power

switch

to

OFF.

Proceed

to

Step

8.

NO

Place power

switch

to

OFF.

Remove

AC

line

cord.

Fault

lies

in

Case

Assembly.

Repair

or

replace.

ILLUSTRATION

^^

P8

Page

3-5

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