[time-nuts] HP5370A A22 arming assembly circuit diagram error

[Dr Bruce Griffiths]

Fix for yet another typo, I really should check the text more carefully.

The positive supply connection to A22:U6 (LM339 quad comparator) is 
shown as ground in the circuit diagram.
This is surely incorrect as the inputs of U6B and U6C are connected to 
TTL(+5V VCC) signals.

Surely this is not the designers intention
The positive supply of A22:U6 should be +5V.

Is there a manual change correcting this schematic error that I have 
missed?

If A22:U6 positive supply is indeed ground, the circuit may still work 
but its reliability will be compromised by the relatively large currents 
flowing into A22:U6C&D input substrate diodes.

Bruce