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The incoming mains is stepped-down via transformers within the power supply unit
to 14-0-14 volts. This is connected to the first motherboard section via flying leads
from the transformers. It is linked between motherboard sections using power
sockets and jumper links.
When type 2 modules are used, the regulator card (1185) provides local regulation.
Other module types use individual or card regulators to suit.
The possible configurations of type 1, 2 and 3 modules are indicated opposite. The
power supply position and the first two (type 1) module slots are always the same.
The other motherboard sections can vary.
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9
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