Sony CDP-791 - SECTION 4 DIAGRAMS; IC Pin Descriptions and Block Diagram; Printed Wiring and Schematic Diagrams

SECTION
4
DIAGRAMS
IC101
(CXA1372Q)
PIN DESCRIPTIONS
PIN
NO. PIN
NAME
I/O
FUNCTION
1
VC
2.5 Volts
power
supply.
2
FGD
I
Focus
gain
adjusting
capacitor
connected
between
(2)
pin
and
(3)
pin.
3
FS3
1
Focus
gain
adjusting
capacitor
connected
between
©
pin
and
®
pin
4
FLB
I
Focus Servo
low
frequency
boost-up
capacitor'
connected.
5
FEO
0
Focus
drive
output.
6
FE-
I
Focus
error
amp
inverted
input.
7
SRCH
I
Connected
capacitor
to
making
the
focus
serch
waveform
8
TGU
1
Tracking
gain
adjusting
capacitor
connected
between
®
pin
and
®
pin
9
TG2
I
Tracking
gain
adjusting
capacitor
connected
between
®
pin
and
®
pin
10
AVCC
+
5 Volts
power
supply.
11
TAO
0
Tracking
drive
output.
12
TA-
I
Tracking
amp
inverted
input.
13
SL
+
I
Sled
amp
non-inverted
input.
14
SLO
0
Sled drive
output.
15
SL-
I
Sled
amp
non-inverted
input.
16
FSET
1
Phase
stabilizer
setting
resistor
connected.
17
ISET
I
Current
setting
resistor
connected.
18
SSTOP
I
Limit
switch
connection
port.
19
AV EE
Ground
(0V).
20
DIRC
I
Direct
control
port.
Non-connected.
21
LOCK
1
Sled
free-run
protection
is
operate
at
“L".
22
CLK
I
Serial
data
transmission
clock
input
form
digital
signal
processor.
23
XLT
I
Latch
input
from
digital
signal
processor.
24
DATA
I
Serial
input
from
digital
signal
processor.
25
SENS
0
Outputs
internal
state
corresponding
to
address.
26
XRST
1
System
reset
input.
Reset
at
"L".
27
C.
OUT
0
Tracking
counter
output.
28
D
GND
Digitel
ground.
Grounded
29
MIRR
0
Mirror
output
digital
signal
processor.
30
DFCT
0
Deflect
output.
Deflect
at "H".
31
ASY
I
Auto
symmetry
control
input.
32
EFM
0
EFM
Comparator
output.
33
FOK
0
Focus
OK.
34
CC2
I
Deflect
bottom
hold
input.
35
CC1
0
Deffect
bottom
hold
output.
36
DV
CC
+
5 Volts
power
supply.
37
CB
1
Deffect
bottom
hold
capacitor
connected.
38
CP
1
Mirror
hold
capacitor
connected.
39
RF!
1
RF
Signal
input
(Capacitance
coupled).
40
RFO
I
RF
Signal
input
(Direct
Coupled).
41
DV
EE
Grounded
(0V).
42
TZC
1
Tracking
Zero-cross
comparator
input.
43
TE
I
Tracking
error
amp
input.
44
TDFCT
I
Deffect
correction
hold
capacitor
connected
45
ATSC
1
Anti-shock
input.
46
FZC
1
Focus
Zero-cross
comparator
input.
47
FE
I
Focus
error
input.
48
FDFCT
I
Deffect
correction
hold
capacitor
connected.