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060
POWER MAP
PAGE
6 OF
(ENTRY POINT CCl
-Switch power OFF
~
and remove the power
cord from the mainline
pONer
socket.
-Reinstall any disconnected FRUs.
-Remove the analog card.
-Disconnect the deflection coils
(Connector P6, near the center of the
analog card with 4 colored wires) - see
Figure 4-7.
-Inspect the plug and connector for loose
and dirty contacts and broken wires.
-Repair any damage.
Did you find the problem?
Y N
061
The horizontal scan coil is connected to
the RED and BLUE wires.
The vertical scan coil is connected to
the YELLOW and GREEN (or BLACK) wires.
The resistance of each coil should be
less than 2 ohms.
-Measure the resistance of the 2 scan
co; Is.
Do both coils seem good?
VI
;~~Change
the CRT.
GO TO MAP
0000,
ENTRY POINT BB.
063
-Exchange the analog card.
elf the problem remains, exchange the
power supply card.
GO TO MAP
0000.
ENTRY POINT BB.
64
GO TO MAP
0000,
ENTRY POINT BB.
MAP 0200-6
065
(ENTRV POINT
FFl
-Start here to isolate problems causing
the power supply to stop (i.e.
lamp 1
changing from ON to OFF - with or without
flashi ng).
-Wait one minute.
-lo~k
at lamp 1 carefully.
-Switch power ON
~.
Does lamp 1 flash?
Y N
066
l:s
lamp
ION?
VI
i~7TO
PAGE
1,
STEP
001.
ENTRY POINT A.
068
If, during more testing,
lamp
1
changes to OFF again:-
.Switch power OFF
~.
.Wait one minute .
• Switch power ON
m.
.If lamp
I
lights, continue
MAP from where you stopped .
• If
lamp
1
remains off,
GO TO STEP
001,
ENTRY POINT A.
.Probe pins P4-2
&
3
(horizontal &
vertical sync Test Points on analog
card) .
Do both lamps light on bath pins?
VI
i~9TO
PAGE
4,
STEP
043,
ENTRY POINT EE.
070
.Switch power OFF
~
and remove the power
cord from the mainline power socket .
• Reinstall any disconnected
FRUs .
• Remove the analog card .
• Oisconnect the deflection coils
(Connector P6, near the center of the
analog card with 4 colored wires) - see
Figure 4-7 .
• lnspect the plug
an~
connector for
loose and dirty contacts and broken
wires .
• Repair any damage.
Did you find the problem?
V N
7 7 7
V W X
04FEB81
MAP 0200-6
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