DSC-W90 (serv.man2) - Sony Digital Camera Service Manual (repair manual). Page 56

For the promotion of browse in the PDF format, the “TABLE OF CONTENTS” was eliminated. As an alternative means, use a conven-
tional function, "Bookmark". It will help you search/display not all pages but the desired page. In addition, the page layout was changed
so that each page is positioned in the center to improve the visibility on the screen.

In the circuit diagram section, the symbols (such as @001) indicating internal connections of the divided circuit diagrams were eliminated.
As an alternative function, the "Signal Location" is added. Except "GND", the divided signal names are listed in alphabetical order for
easy search of the divided circuit diagrams (division numbers) and addresses.

Of course, you can find the desired location by entering the signal name using the search function of the Acrobat, but it will take time to
locate the one you want because the same words exist to and fro in the service manual.

In the PWB drawing section, the “MOUNTED PARTS LOCATION” was eliminated. To check the mounted part location, look at the
enlarged view of the printed wiring board on which the desired part is mounted and enter the reference number for search with the Acrobat
search function. If the corresponding part is found, it is highlighted and displayed in the center of the screen.

Address

Division number

Signal name