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-
1
",
,
t
SC-HM900
14.3
IC703 (AN8739SBE2) Focus Coil, Tracking Coil, Traverse
Mot9r, Spindle Motor Drive
r
r- r¡
r
-25-
Pin No.
Mark
./0
Function
52
EFM
-
EFMsignaloutput
53
PCK
-
PLL extraction dock
output
(fPCK = 4.321 MHz during
normal playback)
54
VCOF2
1/0
VCO Loop filler tor 33.8688
MHz conversation terminal for
16.9344 MHz crystal moda,
must use other circuit
55
SUBC
O
Sub-coda serial data output
56
SBCK
I
Clock
input
tor
sub-coda
serial data
57
VSS
I
GNO
58
X1 IN
I
Crystal oscillating circuit input
!(f = 16.9344MHz)
59
X2 OUT
O
Crystal oscillating circuit input
(f = 16.9344 MHz)
60
VDO
I
Power
supply
input
(tor
oscillating circuit)
61
BYTCK
-
Byte clock output
62
/CLOCK
-
Sub-coda trame dock signal
output (fCLOCK = 7.35 kHz
during normal playback)
63
FCLK
-
Crystal
trame
clock
signal
output
(fCLK
= 7.35
kHz,
double = 14.7 kHz)
64
IPFLAG
-
Interpolation flag output ("H" :
Interpolation)
65
FLAG
-
Flag output
Pin No.
Mark
./0
Function
66
CLVS
-
Spindle
servo
phase
synchronizing
signal
output
("H" : CLV, "L" : rough servo)
67
CRC
-
Sub-coda
CRC
checked
output ("H' :OK, "L" :NG)
68
OEMPH
-
Oe-emphassis
ON
signaJ
output ("H" :ON)
69
RESY
-
Frame re-synchronizing signal
output
70
lOS EL
I
Mode Switching Terminal
71
/TEST
I
Test input
72
AVO01
I
Power
supply
input
(tor
analog circuit)
73
OUTL
O
Left
channel
audio
signal
output
74
AVSS1
I
GND
75
OUTR
O
Right channel
audio
signal
output
76
RSEL
I
RF signal polarity assignment
input (at "H" level, RSEL="H",
at "L" level, RESL="L")
77
laVaD
I
5V supply input
78
PSEL
I
Test terminal (connected
to
Gnd)
79
MSEL
I
SMCK
oscillating
trequency
designation
input ("L":4.2336
MHz, "H":8.4672 MHz)
80
SSEL
I
SUBO
output
moda
select
("H":O-code buffer
moda)
Pin No.
Mark
./0
Function
1
/RST
-
RESET output terminal
2
NC
-
N.C.
3
IN2
I
Motor Orive (2) input
4
PC2
I
Turntable
motor drive signal ("L
:ON)
5
NC
-
N.C.
6
IN1
I
Motor driver (1) input
7
NC
I
N.C.
8
PVCC1
I
Power supply (1) tor driver
9
PGN01
-
Ground connection(1) tor driver
10
NC
-
N.C.
11
01-
O
Motor driver (1) reverse-action
output
12
01+
O
Motor driver (1) torward-action
output
13
02-
O
Motor driver (2)
reverse-action
output
14
02+
O
Motor driver (2) forward-action
output
Pin No.
Mark
./0
Function
15
03-
O
Motor
driver
(3)
reverse-actjon
output
16
03+
O
Motor
driver
(3)
torward-action
output
17
04-
O
Motor
driver
(4)
reverse-action
output
18
04+
O
Motor
driver
(4)
forward-action
output
19
NC
-
N.C.
20
PGN02
-
Ground connection(2) tor driver
21
PVCC2
I
power supply (2) tor driver
22
NC
-
N.C.
23
VCC
I
Power supply terminal
24
VREF
I
Reterence voltage input
25
IN4
I
Motor driver (4) input
26
IN3
I
Motor driver (3) input
27
RSTIN
I
Reset terminal
28
NC
-
N.C.
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