HP 8559A Operation And Service Manual page 184

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Pages 4-10 and 4-11:
Paragraph 4-13. Residual RI
Below Change SPECIFICATION t o read a s follows:
Less than 1 kHz peak-to-peak f o r a time i n t e r v a l 0.1 second;
s e r i e s d i s p l a y mainframe with 220/240 l i n e v o l t a g e .
Replace t h e n o t e i n s t e p 6 w i t h t h e following:
i n
1 kHz s h i f t Frequency produces a
A
.
I n s t e p 6 , change t h e l a s t s e n t e n c e t o read:
Peak-to-peak v a r i a t i o n o f t r a c e should n o t exceed 0.7 d i v i s i o n
v e r t i c a l f o r each h o r i z o n t a l d i v i s i o n .
0.7
division s h i f t i n