Part Layout On Mfd Function Checker - Sony MP-F17W Service Manual

• SW4 ... Set this switch to "A" for MP-Fl7W
series •
. . SWl... Feeds power supply voltage of +5V
and +12V to CN 3 (34pin connector).
Set this switch to "34+4" side for the
MP-F 17W series.
(2)-2
Indicators
• WDSEL ... They indicate the selected position
on the WDSEL switch.
• IIF signals... They indicate the states 0'£
TRK
00,
ROY /HDSEN, DSKCHG, WRTP RT,
and INDEX, respectively.
The TRK 00, WRTPRT, RDY/HDSEN, and
DSKCHG indicators are lit when the
respective IIF signals are low (true). The
INDEX indicator blinks when the INDEX
signal is applied to the board.
• Track Position... Indicates the current track
poaition.
(2)-3 Test Points
TP-l, TP-8, TP-9; GND
TP-2; MON
TP-3; INDEX
TP-4; RDDATA
. . TP-5; WRTGT
TP-6; WRTDT
TP-7; srEP
TP-IO; EXT
TP-ll; TRG
(3)
Part Layout and Circuit Diagum on MFD
Function Checker
II.
(Refer" to Fig. 2-2,
2-3)
Fig. 2·2 Part Layout on MFD Function Checker
/I
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