Read Sony MHC-S9D / TC-S9 Service Manual online
19
TC-S9
7-9.
IC PIN FUNCTION DESCRIPTION
•
MAIN BOARD IC310 PT8300-S (SYSTEM CONTROL)
Pin No.
Pin Name
I/O
Description
1
VSS
—
Ground terminal
2
RESET_B
I
Reset signal input terminal Not used
3
CLK
I
Serial data transfer clock signal input from the DVD/ VIDEO CD/ CD player section (DVP-S9)
4
LATCH
I
Serial data latch pulse signal input from the DVD/ VIDEO CD/ CD player section (DVP-S9)
5 to 8
P15 to P12
I
Not used (fixed at “L”)
9
P11
I
AMS signal input terminal “L”: AMS in
10
P10
I
Detection input from the deck-A half detect switch “H”: cassette in, “L”: no cassette
11
P9
I
Detection input from the deck-B play detect switch “H”: deck-B play
12
P8
I
Detection input from the deck-A play detect switch “H”: deck-A play
13
LATCHO
O
Serial data latch pulse output to the PT8300-S (IC311)
14
CLKO
O
Serial data transfer clock signal output to the PT8300-S (IC311)
15
DO1
O
Serial data output to the PT8300-S (IC311)
16
DI2
I
Serial data input from the PT8300-S (IC311)
17
P7
O
Tape deck relay on/off control signal output to the
µ
PC1330H (IC302)
18
P6
O
ALC on/off control signal output to the HA12226F (IC301)
19
P5
O
Deck-A/B selection signal output to the HA12226F (IC301)
20
P4
O
EQ high/normal selection signal output to the HA12226F (IC301)
21
P3
O
Recording bias on/off control signal output to the HA12226F (IC301)
22
P2
O
Recording muting on/off control signal output to the HA12226F (IC301)
23
P1
O
Dolby NR on/off selection signal output to the HA12226F (IC301)
24
P0
O
Tape deck line muting on/off control output to the HA12226F (IC301)
25
DO2
O
Serial data output to the DVD/ VIDEO CD/ CD player section (DVP-S9)
26
DI1
I
Serial data input from the DVD/ VIDEO CD/ CD player section (DVP-S9)
27
PULLUP
I
P8 to P15 Control pin for pull-up resisitor (fixed at “L”)
28
VCC
—
Power supply terminal (+5V)
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