2
Checking and
replacing parts
2.4
Replacing printed
circuit board
(viii) When assembling the amplifier cooling fan, perform
the reverse procedure as the disassembling procedure.
(Note) After the cooling fan is replaced with the
new one,
check that the cooling fan name plate
is observed from the outside of the amplifier.
2.4 Replacing printed circuit board
2.4.1
Replacing SF-PW module
Black
Screw
A / - -
SF-PW
Connector
(Power
(rear side)
- - C a v i t y
SF-CA card
Screw
SF-PW
(Power supply)
Screw
Hinge panel
The
SF-CA card has
been removed.
By referencing Appendix 2-1 or 2-2, keep the follow-
ing connectors and cable connections as they are.
On SF-CA card . . . . .
CON2, CON3, TB2
On SF-OR card . . . . .
CON4, CONB, CONAA, CONC
(On SF-OR10 card)
Or,
on SF-TL card . . .
CONB,
(ii) By referencing Appendix 5,
open the hinge panel and
remove the leads from the following three terminals
on the terminal board
SO . . . . .
White leads (Remove either of them.)
E
Green lead
Содержание FREQROL-SF
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Страница 168: ...I J No Common Signal description waveform Example of waveform Orientation stop state 13 5 16 5V 9 1lV 1 300ILsec 163 ...