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A T U
144
CONVERGENCE MAP
PAGE
5 OF
5
153
'Set the TEST/NORMAL switch to TEST
and back to NORMAL.
IS the convergence worse than you left
it?
Y N
054
It may be an intermittent problem.
-See if
the
convergence coil
assembly is loose.
-look for loose cables and
connectors and reseat the
convergence amplifier card and
logic card 82.
GO TO MAP 0000. ENTRY POINT BB.
055
-Exchange logic card 82 (then D2 then
C2)
GO TO MAP 0000. ENTRY POINT BB.
056
-Exchange logic card 82 (then 02 then
C2.)
GO TO MAP 0000. ENTRY POINT BB.
057
Is the error code resettable?
Y N
j
058
.g;~~ange
logic card 82 (then 02 then
GO TO MAP 0000. ENTRY POINT BB.
59
'Switch power OFF
~.
-Check the connections to the battery.
-Disconnect
the
A3 logic
gate
connector.
-Probe the free end of the A3 connector to
measure the battery voltage:
+
meter lead to pin 007
- meter lead to pin 807.
A new battery will measure 4.1 V.
IS it less than 3.5 V ?
Y N
060
-Reconnect the A3 connector.
-Measure the voltage on 82808.
This voltage should be 0.5 V to 1.0 V
less than the battery voltage.
IS it correct?
Y N
Ob1
-Measure the voltage on B2J09.
This should be the same as the battery
voltage.
IS it correct?
Y N
V W X
062
There is a connection failure.
-Check:
B2J09 .. A3D07 .. P20-4 .. Battery/red
B2J08 .. A3B07 .. P20-l .. Battery/black
-Exchange the failing FRU.
GO TO MAP 0000. ENTRY POINT BB.
V W X
MAP 0600-5
1b3
-Exchange logic card 82.
GO TO MAP 0000. ENTRY POINT BB.
06~
The battery seems good.
-Exchange logic card B2.
-Set
up
Dynamic convergence; See MIM
section 5.3.3.
GO TO MAP 0000. ENTRY POINT BB.
065
-Check for correct voltage
at
the
following points:-
B2J09 .. A3D07 .. P20-4 .. Battery/red
B2J08 .. A3B07 .. P20-l .. Battery/black
.If the problem is still present get the
customer to exchange the
battery.
-If the problem remains when the customer
installs a new battery, exchange logic
card B2.
GO TO MAP 0000. ENTRY POINT BB.
04FEB81
MAP 0600-5
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