Apple IMAC DV SPECIAL Manuale Utente
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7
Identifying the Power/Analog/Video Boards
There is a new revision (backward compatible) of the power/analog/video board (661-
2315, Rev. 2) for the slot-load iMac. The revised board can be identified by the presence of
a switch at location SW901 (see below). The switch must be set for the type of the CRT (LG,
Samsung, or CPT) tube in the computer. The CRT switch settings are silk-screened on the
board near SW901. If this power/analog/video board or the CRT are replaced, make sure to
set the switch to the appropriate position. One way to quicky identify an LG CRT is by a black
sticker (on the left side of the CRT) covering the LG label. This board must be exchanged
like-for-like. The graphic below shows the revised board (661-2315, Rev.2) and the
original power/analog/video board (661-2212).
2315, Rev. 2) for the slot-load iMac. The revised board can be identified by the presence of
a switch at location SW901 (see below). The switch must be set for the type of the CRT (LG,
Samsung, or CPT) tube in the computer. The CRT switch settings are silk-screened on the
board near SW901. If this power/analog/video board or the CRT are replaced, make sure to
set the switch to the appropriate position. One way to quicky identify an LG CRT is by a black
sticker (on the left side of the CRT) covering the LG label. This board must be exchanged
like-for-like. The graphic below shows the revised board (661-2315, Rev.2) and the
original power/analog/video board (661-2212).