Commodore 1541-II Uživatelská příručka stáhnout pdf (Strana 27)

STEP

3

4

5

PROCEDURE

(Continue

testing

Frame

Assembly

.as

follows:

1.

Place

power

switch

to

OFF.

2.

Connect

negative

lead

of

!DMM

to

pin

2

of Jl

(A)

.

3.

Connect

positive

lead

of

DMM

to

pin

3

of

Jl

(B).

4.

Place

power

switch

to

ON.

Does

DMM

display

between

9.5

and

13.5

Vrms?

YES

Frame

Assembly

appears

to

be

working

pro

perly.

Pro

ceed

to

Step

4.

NO

Place

power

switch

to

OFF.

Remove

AC

line

,cord.

Fault

lies

in

Frame

Assembly.

Re

pair

or

replace

Frame

Assembly.

Place

power

switch

to OFF.

Remove

AC

line

cord.

Remove

shield.

Disconnect

J2

from

P2,

,J5

from

P5,

J6

from

P6,

J7

from

P7

and

J8

from

P8.

Proceed

to

Step

5.

Reconnect

Jl

to

PI.

Connect

AC

line

cord

to

VIC-1541.

Connect

common

lead

of

DMM

to

(-)

side

of

C52

(A).

Set

DMM

to

20

VDC

range.

Proceed

to

Step

6.

ILLUSTRATION

1

I

►l

SEE

FIG.

9-2

*Iflj

UJj

ifiJUD

Iti

8

J—IH1-

s

n

li

—

Page

3-4

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