Read Sony TCM-900DV Service Manual online
19
TCM-900DV
Pin No.
Pin name
I/O
Description
1
FF/REW SW
I
Fast foeward/Rewind switch (S702) input
2
VOR IN
I
VOR detect ON/OFF signal input
3
DPC SW
I
DPC position switch (S904) input
4
POWER/BATT DET
I
Power supply detect input (power on : H, off :L)
5
JACK DET
I
Earphone jack detect (J102) input
6
PHOTO IN
I
Rotation of reel detect signal
7
TAPE SPEED SW
I
Tape speed (REC TIME) switch (S903) input
8
KEY IN
I
Key input terminal of analog voltage mode
9
AVSS
—
Ground terminal
10
REC IN
I
REC/PB switch (S101) input (REC : H, PB : L)
11
SP SW
O
Speaker ON/OFF signal output (speaker on : H)
12
WAKE UP
I
Interrupt signal input
13
SPPED CTL
O
Tape speed signal output
14
VOR SW
I
VOR ON/OFF switch (S902) input
15
MOTOR CTL
O
Motor ON/OFF signal output (Motor ON : L)
16
LCD/REP SCLK
O
Clock signal output to LCD driver and repeat IC
17
VDD1
—
Power supply terminal (B+3.6V)
18
LCD/REP DATA OUT
O
Serial data signal output to LCD driver and repeat IC
19
REP SI
I
Serial data input for repeat IC
20
LED CTL
O
REC LED ON/OFF signal output
21
LCD CS
O
LCD driver chip select signal output
22
XIC0
—
Not used (connect to ground)
23
XT2
—
Not used (OPEN)
24
XT1
—
Not used (connect to ground)
25
RESET
I
System reset signal input
26
X2
O
Crystal oscillator terminal (4MHz)
27
X1
I
Crystal oscillator terminal (4MHz)
28
VSS0
—
Ground terminal
29
VDD0
—
Power supply terminal (B+3.6V)
30
PIC ON/OFF
O
Digital pich control signal(DPC OFF : L, DPC ON : H)
31
PIC CTL
O
Digital pich control PWM signal output
32
PIC MCI
O
Digital pich control mode signal output (AUTO : L, MANUAL : H)
33
PIC RST
O
Digital pich control reset signal output
34
REP RST
O
Repeat IC reset signal output
35
REP CS
O
Repeat IC chip select signal output
36
REP BUSY
I
Repeat IC busy signal input
37
VSS1
—
Ground terminal
38
REC CTL
O
REC control signal output
39
REP ON
O
Repeat ON/OFF signal output (OFF : H, ON :L)
40
F/R GEAR
I
Forward/reverse switch (S701) input (FWD : H, REV :L)
41
REP CUE/REV
O
Reseat playback cue/review signal output
42
MUTE CTL
O
Audio mute signal output
43
AVDD
—
Power supply terminal (B+3.6V)
44
AVREF
—
Referemce voltage to A/D converter (connect to AVDD (B+3.6) )
4-11. EXPLANATION OF IC TERMINALS
IC701 uPD789166GB-552-8ES (SYSTEM CONTROL)
IC701 uPD789166GB-552-8ES (SYSTEM CONTROL)
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