Notes On Repair Parts; Printing Of The Reference Numbers On Printed Boards; Optional Fixture - Sony AC-DN2B Maintenance Manual

3. Remove the two screws and remove the fan.
4. Install a new fan in the reverse order of removal.
Note at installation
Install the fan to the fan socket with care so that air flows
in the direction of the arrow.
PTP3 x 8
Air flows
AC-DN2B
PTP3 x 8

1-8. Printing of the Reference Numbers on Printed Boards

1-7. Notes on Repair Parts

1. Safety Related Components Warning
w
Components marked ! are critical to safe operation.
Therefore, specified parts should be used in the case of
replacement.
2. Standardization of Parts
Some repair parts supplied by Sony differ from those
used for the unit. These are because of parts common-
ality and improvement.
Parts list has the present standardized repair parts.
3. Stock of Parts
Parts marked with "o" at SP (Supply Code) column of
the spare parts list may not be stocked. Therefore, the
delivery date will be delayed.
4. Harness
Harnesses with no part number are not registered as
spare parts.
In need of repair, get components shown in the list and
repair using them.
1-8. Printing of the Reference Numbers
on Printed Boards
Only the lower two digits of the reference numbers of the
SUB01 board and SUB02 board are shown respectively on
the printed board. Note that these indications differ from
those on the schematic diagram, block diagram and
electrical parts list.
(example)
Board Indication on the
printed board
SUB01 CN01
SUB02 VR51

1-9. Optional Fixture

The following special driver is separately available as a
fixture to remove the screws securing the V shoe to the
unit.
Description
5-wing screwdriver DF-018 (for M3)
1-6. Replacing the Fan
1-7. Notes on Repair Parts
1-9. Optional Fixture
Ref.No.
in the manual
CN101
VR251
Sony Part No.
J-6530-180-A
1-5 (E)