Required Test Equipment; Test Procedure - AMSTRAD TS80 Service Manual

Remote control tower system
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SAFETY TEST PROCEDURE
These tests should be applied to the set after any work is carried out. These tests must be
done to the set before the six screw blanking plates are fitted to the cabinet.
REQUIRED TEST EQUIPMENT
1.
Flash Test Generator capable of testing at 2.2kV AC.
2.
Megger tester rated at 500V DC.
3.
Instrument capable of testing resistance down to 0.10hm at 10amps.
TEST PROCEDURE
1,
Stand on bench clear of all metal objects.
No leads should be connected to the unit.
Ensure that the on/off switch is in the ON position.
2.
Set Flash test generator to 2.2kV AC.
Connect
1 pole to the live and neutral mains lead connected together and flash test the
following points:
a)
The headphone socket ring.
b)
The rings of both microphone sockets.
C)
The record deck transit screw.
d)
All control Knobs and buttons.
e)
The underneath of the front panel, below the RECORD
LEVEL knob.
f)
The back panel.
a:
Connect the megger tester to the live and neutral mains lead connected together and
megger test the following points:
a)
The headphone socket ring.
b)
The rings of both microphone sockets.
Cc)
The record deck transit screw.
d)
All control Knobs and buttons.
e)
The underneath of the front panel, below the RECORD
LEVEL knob.
f)
The back panel.
4.
Check that the earth lead continuity is below 0.5 ohms at
10amps between the mains earth
lead core and the record deck transit screw.
CAUTION:
High voltages may be present on a faulty set and care should be taken to avoid electric
shocks.
Certain components within this set are specific safety items and must be replaced with similar
items which comply to the same safety specification.
All such parts may be obtained direct from AMSTRAD CONSUMER
ELECRONICS
PLC

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Ts88

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