Hitachi VK-U174 Service Manual page 6

Safety Precaution for Repair > Notes When Using Service Manual
(3) Identifications of sides A/B in circuit board diagrams
1) Board with a pattern on one side and parts on both sides:
Side A: Shows discrete parts, viewed from the pattern side.
Side B: Shows leadless parts, viewed from the pattern side.
2) Board with patterns on both sides and parts on both sides:
Side A: Shows parts and patterns which can be seen when the case is opened.
Side B: Shows parts and the pattern on the back of side A.
(4) Table for indexing locations of parts
This table shows locations of each part on circuit board diagrams. The locations are indicated using
the guide scales on the external lines of diagrams.
1) One diagram indicated for each board
Symbol Parts
No. Location
IC
IC1201 2 A
Symbol no.
Type of part
Zone "A" on circuit board
diagram
Zone "2" on circuit board
diagram
1 - 4
2) Two diagrams indicated for each board
Symbol Parts
No. Location
IC
IC1201 A - 2
A: Shows side A
B: Shows side B
A
Zone "A" on board
diagram
Zone "2" on board
diagram