DR. JOHANNES HEIDENHAIN TNC 114 Руководство по эксплуатации - Страница 17

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DR. JOHANNES HEIDENHAIN
D-8225 Traunreut
Telefon (08669) 31-O. Telex 56831
TNC
114
EXCHANGE
Board Exchange
Page 1
stand:
01.10.83
1. General
Observe MOS protection
procedures.
2.
Exchange
1) Remov& the 4 Phillips
mounting
screws oil the control
backside.
2) Service
block
including:
- front
plate
- display
board
- analog
board
remove from frontside.
3) Disconnect
DIL-switch
connector
located
on the analog
board.
4) Disconnect
grounding
connector,
located
on the analog
output
board.
5) Disconnect
transducer
system connector
for
X, Y, Z,
located
on the analog
board.
6)
Disconnect
flat
cable
connector
for
control
input/
outputs,
located
on the analog
output
board.
7)
Disconnect
the supply
voltage
to the analog
board.
8) Remove the 5 Phillips
mounting
screws of the analog
output
board.
9) Disconnect
flat
cable
connector
located
on the analog
output
board.
10) Remove analog
output
board.
11)
Disconnect
the analog
board supply
voltage.
12) Remove the 5 mounting
bolts
of the analog
board.
13) Disconnect
flat
cable.
14) Remove analog
board.
15) Remove the 5 mounting
bolts
of the display
board.
16) Disconnect
the 4 keyboard
connectors.
17) Remove display
board.
Assembly
in reverse
order.
Observe the correct
location
of the LEDs when assemblying.
The power supply
is offered
complete
inclusive
line
transformer
and inclosure
backwall
as replacement
part.