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VIDEO OUTPUT RPQ MAP
PAGE
3 OF
026
(ENTRY POINT BB)
'Switch power OFF
~.
5
-Remove cable connector in position C4.
-Remove logic card C2.
-Measure resistance between C4D05 and
C4D08. and between C4D04 and C4D08.
Are both open-circuit?
Y N
027
·Use delete tool (PN 452626) to delete
connections on card side of the board
at C4D04 .
• Also delete wiring at C4D05.
-Reinstall logic card C2 and top-card
connectors.
-Reinstall connector in position C4.
GO TO PAGE 5. STEP 057.
ENTRY POINT FF.
28
• Reinstall logic card C2 and top-card
connectors.
-Switch power ON
m.
-Set meter to 6Vdc range.
eMeasure voltage between C4D05(+) and
C4D08(
-l .
Does meter indicate between
2.6
and
3.2
Vdc?
Y N
I
029
-Exchange logic card C2.
-Reinstall connector in location C4.
GO TO PAGE 5. STEP 057.
ENTRY POINT FF.
30
'Switch power OFF
~.
-Reinstall connector in location C4.
eDisconnect SYNC TEST lamp at connector
J34 (behind rear panel).
-Measure voltage between pin 1
(+)
and pin
4 (-l.
(NOTE: blank plug is at pin 2.)
-Switch power ON
~.
'Set VIDEO CONTROL switch to TEST.
Does meter indicate between
2.0
and
3.0
Vdc?
Y N
031
·Switch power OFF
~.
-Reinstall connector J34.
-Remove the cable connector from
position C4.
-Check the wiring between connector C4
and the video output RPQ switches and
indicator.
(See Figure 6-13 ).
IS the wiring OK?
Y N
G H
032
-Repair/exchange cable.
-Reinstall connector in position C4.
GO TO PAGE 5. STEP 057.
ENTRY POINT FF.
G H
MAP 1000-3
L
'Exchange logic card C2.
-Reinstall connector in position C4.
-Reinstall connector J34.
GO TO PAGE 5. STEP 057.
ENTRY POINT FF.
034
'Set the VIDEO CONTROL switch to NORMAL.
DOeS meter indicate less than 0.5 Vdc?
Y N
035
.Check the VIDEO CONTROL switch and
wiring to connector C4.
Are switch and wiring OK?
Y N
036
-Repair/exchange failing FRU.
-Reinstall connector J34.
GO TO PAGE 5. STEP 057.
ENTRY POINT FF .
037
-Exchange logic card C2.
-Reinstall connector J34.
GO TO PAGE 5. STEP 057.
ENTRY POINT FF.
038
-Check connector J34/P34 ;s not damaged.
-Inspect/exchange the cable in position
C4 .
• If the cable is OK. exchange SIGNAL TEST
lamp assembly.
-Reinstall connector J34.
GO TO PAGE 5. STEP 057.
ENTRY POINT FF.
04FE881
MAP 1000-3
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