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Technics SJ-HD505 Service Manual page 69

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Pin
Mark
I/O
No.
Division
37
VREF
O
38
RF1
I
39
RF2
I
40
F1
I
41
F2
I
42
CLPF1
43
CLPF2
44
A
I
~47
~D
48
CENVC
16.2. IC2 (AN8814SB-E1) : FOCUS/TRACKING COIL, SPINDLE/
TRAVERSE MOTOR DRIVE
Pin
Mark
I/O
No.
Division
1
REG B
2
REG M
3
NC
4
OPO
O
5
OP-
O
6
OP+
O
7
Vcc
I
8
1/2
O
PVcc2
9
PVcc
I
10
PGND2
11
VO4-
O
Function
Reference voltage output
terminal
RF1 signal input terminal
RF2 signal input terminal
F1 signal input terminal
F2 signal input terminal
APP compensation LPF
capacitor connection
terminal
RF equalizer adjustment
resistor connection
terminal
Beam A~D signal input
terminal
Beam E signal detection
capacitor connection
terminal
Function
3.3V external transistor
control terminal (Not used,
open)
3.3V regular output
monitor terminal (Not used,
connected to GND)
Not used, open
Op-amp output terminal
Op-amp invert output
terminal
Op-amp non-invert output
terminal (Not used,
connected to GND)
Power supply terminal
1/2 PVcc output terminal 1
(Connected to GND
through capacitor)
Power supply terminal for
driver
GND terminal
Tracking coil driver output
terminal

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