Service manual
195V111
TROUBLE SHOOTING TABLE
Malfunctions
not
Traceable
to
Game Deck
Display Fails
to
Appe-a (o.nly noise)
I
Is
TV
operation
normal,
when
select
the
TV/GAME switch
to
TV
position?
Yes
\
~
r---··---,
1 Check
the
Lead I
No
1
Wire
"oc•. 1
L-------J
Is
there
DC
1
OV
at
....
N_o_.....,.
pin
(1)
of
IC101
on
PWB-E?
Check
the
T1
01
AC
r--No_---1 120V supply {Across
EA
1 and EA2)?
,~
r----··----,
Yes
No
'
lr
Is
there
DC
SV
at
Connector "EC1"
on PWB-E?
Yes
'~
r--
-·
...
--
-,
I Check IC101,
C107
I
I
and
C108.
I
L-------J
1
Check connector
"EA",
1
I
connector "Hn and I
Lead
wire
"H".
No
Is
there
DC
OV
at
....----tcollector
of
Q101?
...,..._
.......
Yes
L--,._-
...
_~'11111111111-J
'
r
Ch;ck
Rto7.-
-,
Q101, D102, I
1
Connector "EB"
1
1
and
1
I Lead
Wire
"EB". I
L-------J
10
r
.....
..-.~
..........
___
,
I Check T101, D101, I
I C104 and RY101. I
L
_______
J
Yes
I